Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 1 | |
| 2 | /* New getargs implementation */ |
| 3 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 4 | #include "Python.h" |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 5 | |
Guido van Rossum | c1d5053 | 1996-08-21 23:38:24 +0000 | [diff] [blame] | 6 | #include <ctype.h> |
Benjamin Peterson | a853a8b | 2017-09-07 11:13:59 -0700 | [diff] [blame] | 7 | #include <float.h> |
Guido van Rossum | c1d5053 | 1996-08-21 23:38:24 +0000 | [diff] [blame] | 8 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 9 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 10 | #ifdef __cplusplus |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 11 | extern "C" { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 12 | #endif |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 13 | int PyArg_Parse(PyObject *, const char *, ...); |
| 14 | int PyArg_ParseTuple(PyObject *, const char *, ...); |
| 15 | int PyArg_VaParse(PyObject *, const char *, va_list); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 16 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 17 | int PyArg_ParseTupleAndKeywords(PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 18 | const char *, char **, ...); |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 19 | int PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 20 | const char *, char **, va_list); |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 21 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 22 | int _PyArg_ParseTupleAndKeywordsFast(PyObject *, PyObject *, |
| 23 | struct _PyArg_Parser *, ...); |
| 24 | int _PyArg_VaParseTupleAndKeywordsFast(PyObject *, PyObject *, |
| 25 | struct _PyArg_Parser *, va_list); |
| 26 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 27 | #ifdef HAVE_DECLSPEC_DLL |
| 28 | /* Export functions */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 29 | PyAPI_FUNC(int) _PyArg_Parse_SizeT(PyObject *, const char *, ...); |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 30 | PyAPI_FUNC(int) _PyArg_ParseStack_SizeT(PyObject **args, Py_ssize_t nargs, |
| 31 | const char *format, ...); |
Victor Stinner | 3e1fad6 | 2017-01-17 01:29:01 +0100 | [diff] [blame] | 32 | PyAPI_FUNC(int) _PyArg_ParseStackAndKeywords_SizeT(PyObject **args, Py_ssize_t nargs, PyObject *kwnames, |
Benjamin Peterson | 819a46f | 2016-09-09 20:45:06 -0700 | [diff] [blame] | 33 | struct _PyArg_Parser *parser, ...); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 34 | PyAPI_FUNC(int) _PyArg_ParseTuple_SizeT(PyObject *, const char *, ...); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 35 | PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
| 36 | const char *, char **, ...); |
| 37 | PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 38 | PyAPI_FUNC(int) _PyArg_VaParse_SizeT(PyObject *, const char *, va_list); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 39 | PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
| 40 | const char *, char **, va_list); |
Benjamin Peterson | 4eef505 | 2016-09-10 17:04:36 -0700 | [diff] [blame] | 41 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 42 | PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywordsFast_SizeT(PyObject *, PyObject *, |
| 43 | struct _PyArg_Parser *, ...); |
| 44 | PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywordsFast_SizeT(PyObject *, PyObject *, |
| 45 | struct _PyArg_Parser *, va_list); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 46 | #endif |
| 47 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 48 | #define FLAG_COMPAT 1 |
| 49 | #define FLAG_SIZE_T 2 |
| 50 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 51 | typedef int (*destr_t)(PyObject *, void *); |
| 52 | |
| 53 | |
| 54 | /* Keep track of "objects" that have been allocated or initialized and |
| 55 | which will need to be deallocated or cleaned up somehow if overall |
| 56 | parsing fails. |
| 57 | */ |
| 58 | typedef struct { |
| 59 | void *item; |
| 60 | destr_t destructor; |
| 61 | } freelistentry_t; |
| 62 | |
| 63 | typedef struct { |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 64 | freelistentry_t *entries; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 65 | int first_available; |
| 66 | int entries_malloced; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 67 | } freelist_t; |
| 68 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 69 | #define STATIC_FREELIST_ENTRIES 8 |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 70 | |
| 71 | /* Forward */ |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 72 | static int vgetargs1_impl(PyObject *args, PyObject **stack, Py_ssize_t nargs, |
| 73 | const char *format, va_list *p_va, int flags); |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 74 | static int vgetargs1(PyObject *, const char *, va_list *, int); |
Victor Stinner | 84bb1cf | 2013-05-17 00:12:04 +0200 | [diff] [blame] | 75 | static void seterror(Py_ssize_t, const char *, int *, const char *, const char *); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 76 | static const char *convertitem(PyObject *, const char **, va_list *, int, int *, |
| 77 | char *, size_t, freelist_t *); |
| 78 | static const char *converttuple(PyObject *, const char **, va_list *, int, |
| 79 | int *, char *, size_t, int, freelist_t *); |
| 80 | static const char *convertsimple(PyObject *, const char **, va_list *, int, |
| 81 | char *, size_t, freelist_t *); |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 82 | static Py_ssize_t convertbuffer(PyObject *, const void **p, const char **); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 83 | static int getbuffer(PyObject *, Py_buffer *, const char**); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 84 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 85 | static int vgetargskeywords(PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 86 | const char *, char **, va_list *, int); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 87 | static int vgetargskeywordsfast(PyObject *, PyObject *, |
| 88 | struct _PyArg_Parser *, va_list *, int); |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 89 | static int vgetargskeywordsfast_impl(PyObject **args, Py_ssize_t nargs, |
| 90 | PyObject *keywords, PyObject *kwnames, |
| 91 | struct _PyArg_Parser *parser, |
| 92 | va_list *p_va, int flags); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 93 | static const char *skipitem(const char **, va_list *, int); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 94 | |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 95 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 96 | PyArg_Parse(PyObject *args, const char *format, ...) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 97 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 98 | int retval; |
| 99 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 100 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 101 | va_start(va, format); |
| 102 | retval = vgetargs1(args, format, &va, FLAG_COMPAT); |
| 103 | va_end(va); |
| 104 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 108 | _PyArg_Parse_SizeT(PyObject *args, const char *format, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 109 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 110 | int retval; |
| 111 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 112 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 113 | va_start(va, format); |
| 114 | retval = vgetargs1(args, format, &va, FLAG_COMPAT|FLAG_SIZE_T); |
| 115 | va_end(va); |
| 116 | return retval; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 120 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 121 | PyArg_ParseTuple(PyObject *args, const char *format, ...) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 122 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 123 | int retval; |
| 124 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 125 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 126 | va_start(va, format); |
| 127 | retval = vgetargs1(args, format, &va, 0); |
| 128 | va_end(va); |
| 129 | return retval; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 130 | } |
| 131 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 132 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 133 | _PyArg_ParseTuple_SizeT(PyObject *args, const char *format, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 134 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 135 | int retval; |
| 136 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 137 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 138 | va_start(va, format); |
| 139 | retval = vgetargs1(args, format, &va, FLAG_SIZE_T); |
| 140 | va_end(va); |
| 141 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 142 | } |
| 143 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 144 | |
| 145 | int |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 146 | _PyArg_ParseStack(PyObject **args, Py_ssize_t nargs, const char *format, ...) |
| 147 | { |
| 148 | int retval; |
| 149 | va_list va; |
| 150 | |
| 151 | va_start(va, format); |
| 152 | retval = vgetargs1_impl(NULL, args, nargs, format, &va, 0); |
| 153 | va_end(va); |
| 154 | return retval; |
| 155 | } |
| 156 | |
| 157 | int |
| 158 | _PyArg_ParseStack_SizeT(PyObject **args, Py_ssize_t nargs, const char *format, ...) |
| 159 | { |
| 160 | int retval; |
| 161 | va_list va; |
| 162 | |
| 163 | va_start(va, format); |
| 164 | retval = vgetargs1_impl(NULL, args, nargs, format, &va, FLAG_SIZE_T); |
| 165 | va_end(va); |
| 166 | return retval; |
| 167 | } |
| 168 | |
| 169 | |
| 170 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 171 | PyArg_VaParse(PyObject *args, const char *format, va_list va) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 172 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 173 | va_list lva; |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 174 | int retval; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 175 | |
Benjamin Peterson | 0c21214 | 2016-09-20 20:39:33 -0700 | [diff] [blame] | 176 | va_copy(lva, va); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 177 | |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 178 | retval = vgetargs1(args, format, &lva, 0); |
| 179 | va_end(lva); |
| 180 | return retval; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 181 | } |
| 182 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 183 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 184 | _PyArg_VaParse_SizeT(PyObject *args, const char *format, va_list va) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 185 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 186 | va_list lva; |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 187 | int retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 188 | |
Benjamin Peterson | 0c21214 | 2016-09-20 20:39:33 -0700 | [diff] [blame] | 189 | va_copy(lva, va); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 190 | |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 191 | retval = vgetargs1(args, format, &lva, FLAG_SIZE_T); |
| 192 | va_end(lva); |
| 193 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 194 | } |
| 195 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 196 | |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 197 | /* Handle cleanup of allocated memory in case of exception */ |
| 198 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 199 | static int |
| 200 | cleanup_ptr(PyObject *self, void *ptr) |
Antoine Pitrou | f7199578 | 2008-08-29 18:37:05 +0000 | [diff] [blame] | 201 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 202 | if (ptr) { |
| 203 | PyMem_FREE(ptr); |
| 204 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 205 | return 0; |
Martin v. Löwis | c15bdef | 2009-05-29 14:47:46 +0000 | [diff] [blame] | 206 | } |
| 207 | |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 208 | static int |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 209 | cleanup_buffer(PyObject *self, void *ptr) |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 210 | { |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 211 | Py_buffer *buf = (Py_buffer *)ptr; |
| 212 | if (buf) { |
| 213 | PyBuffer_Release(buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 214 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 215 | return 0; |
| 216 | } |
| 217 | |
| 218 | static int |
| 219 | addcleanup(void *ptr, freelist_t *freelist, destr_t destructor) |
| 220 | { |
| 221 | int index; |
| 222 | |
| 223 | index = freelist->first_available; |
| 224 | freelist->first_available += 1; |
| 225 | |
| 226 | freelist->entries[index].item = ptr; |
| 227 | freelist->entries[index].destructor = destructor; |
| 228 | |
| 229 | return 0; |
| 230 | } |
| 231 | |
| 232 | static int |
| 233 | cleanreturn(int retval, freelist_t *freelist) |
| 234 | { |
| 235 | int index; |
| 236 | |
| 237 | if (retval == 0) { |
| 238 | /* A failure occurred, therefore execute all of the cleanup |
| 239 | functions. |
| 240 | */ |
| 241 | for (index = 0; index < freelist->first_available; ++index) { |
| 242 | freelist->entries[index].destructor(NULL, |
| 243 | freelist->entries[index].item); |
| 244 | } |
| 245 | } |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 246 | if (freelist->entries_malloced) |
| 247 | PyMem_FREE(freelist->entries); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 248 | return retval; |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 252 | static int |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 253 | vgetargs1_impl(PyObject *compat_args, PyObject **stack, Py_ssize_t nargs, const char *format, |
| 254 | va_list *p_va, int flags) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 255 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 256 | char msgbuf[256]; |
| 257 | int levels[32]; |
| 258 | const char *fname = NULL; |
| 259 | const char *message = NULL; |
| 260 | int min = -1; |
| 261 | int max = 0; |
| 262 | int level = 0; |
| 263 | int endfmt = 0; |
| 264 | const char *formatsave = format; |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 265 | Py_ssize_t i; |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 266 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 267 | int compat = flags & FLAG_COMPAT; |
Benjamin Peterson | 40be9e5 | 2014-02-11 10:09:27 -0500 | [diff] [blame] | 268 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
| 269 | freelist_t freelist; |
| 270 | |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 271 | assert(nargs == 0 || stack != NULL); |
| 272 | |
Benjamin Peterson | 40be9e5 | 2014-02-11 10:09:27 -0500 | [diff] [blame] | 273 | freelist.entries = static_entries; |
| 274 | freelist.first_available = 0; |
| 275 | freelist.entries_malloced = 0; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 276 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 277 | flags = flags & ~FLAG_COMPAT; |
Tim Peters | 5c4d5bf | 2001-02-12 22:13:26 +0000 | [diff] [blame] | 278 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 279 | while (endfmt == 0) { |
| 280 | int c = *format++; |
| 281 | switch (c) { |
| 282 | case '(': |
| 283 | if (level == 0) |
| 284 | max++; |
| 285 | level++; |
| 286 | if (level >= 30) |
| 287 | Py_FatalError("too many tuple nesting levels " |
| 288 | "in argument format string"); |
| 289 | break; |
| 290 | case ')': |
| 291 | if (level == 0) |
| 292 | Py_FatalError("excess ')' in getargs format"); |
| 293 | else |
| 294 | level--; |
| 295 | break; |
| 296 | case '\0': |
| 297 | endfmt = 1; |
| 298 | break; |
| 299 | case ':': |
| 300 | fname = format; |
| 301 | endfmt = 1; |
| 302 | break; |
| 303 | case ';': |
| 304 | message = format; |
| 305 | endfmt = 1; |
| 306 | break; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 307 | case '|': |
| 308 | if (level == 0) |
| 309 | min = max; |
| 310 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 311 | default: |
| 312 | if (level == 0) { |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 313 | if (Py_ISALPHA(Py_CHARMASK(c))) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 314 | if (c != 'e') /* skip encoded */ |
| 315 | max++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 316 | } |
| 317 | break; |
| 318 | } |
| 319 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 320 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 321 | if (level != 0) |
| 322 | Py_FatalError(/* '(' */ "missing ')' in getargs format"); |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 323 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 324 | if (min < 0) |
| 325 | min = max; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 326 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 327 | format = formatsave; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 328 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 329 | if (max > STATIC_FREELIST_ENTRIES) { |
| 330 | freelist.entries = PyMem_NEW(freelistentry_t, max); |
| 331 | if (freelist.entries == NULL) { |
| 332 | PyErr_NoMemory(); |
| 333 | return 0; |
| 334 | } |
| 335 | freelist.entries_malloced = 1; |
Benjamin Peterson | 7ed6727 | 2012-03-16 12:21:02 -0500 | [diff] [blame] | 336 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 337 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 338 | if (compat) { |
| 339 | if (max == 0) { |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 340 | if (compat_args == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 341 | return 1; |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 342 | PyErr_Format(PyExc_TypeError, |
| 343 | "%.200s%s takes no arguments", |
| 344 | fname==NULL ? "function" : fname, |
| 345 | fname==NULL ? "" : "()"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 346 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 347 | } |
| 348 | else if (min == 1 && max == 1) { |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 349 | if (compat_args == NULL) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 350 | PyErr_Format(PyExc_TypeError, |
| 351 | "%.200s%s takes at least one argument", |
| 352 | fname==NULL ? "function" : fname, |
| 353 | fname==NULL ? "" : "()"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 354 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 355 | } |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 356 | msg = convertitem(compat_args, &format, p_va, flags, levels, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 357 | msgbuf, sizeof(msgbuf), &freelist); |
| 358 | if (msg == NULL) |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 359 | return cleanreturn(1, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 360 | seterror(levels[0], msg, levels+1, fname, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 361 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 362 | } |
| 363 | else { |
| 364 | PyErr_SetString(PyExc_SystemError, |
| 365 | "old style getargs format uses new features"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 366 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 367 | } |
| 368 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 369 | |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 370 | if (nargs < min || max < nargs) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 371 | if (message == NULL) |
| 372 | PyErr_Format(PyExc_TypeError, |
| 373 | "%.150s%s takes %s %d argument%s (%ld given)", |
| 374 | fname==NULL ? "function" : fname, |
| 375 | fname==NULL ? "" : "()", |
| 376 | min==max ? "exactly" |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 377 | : nargs < min ? "at least" : "at most", |
| 378 | nargs < min ? min : max, |
| 379 | (nargs < min ? min : max) == 1 ? "" : "s", |
| 380 | Py_SAFE_DOWNCAST(nargs, Py_ssize_t, long)); |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 381 | else |
| 382 | PyErr_SetString(PyExc_TypeError, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 383 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 384 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 385 | |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 386 | for (i = 0; i < nargs; i++) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 387 | if (*format == '|') |
| 388 | format++; |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 389 | msg = convertitem(stack[i], &format, p_va, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 390 | flags, levels, msgbuf, |
| 391 | sizeof(msgbuf), &freelist); |
| 392 | if (msg) { |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 393 | seterror(i+1, msg, levels, fname, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 394 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 395 | } |
| 396 | } |
Guido van Rossum | 231a41e | 1997-12-09 20:36:39 +0000 | [diff] [blame] | 397 | |
Antoine Pitrou | 4de7457 | 2013-02-09 23:11:27 +0100 | [diff] [blame] | 398 | if (*format != '\0' && !Py_ISALPHA(Py_CHARMASK(*format)) && |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 399 | *format != '(' && |
| 400 | *format != '|' && *format != ':' && *format != ';') { |
| 401 | PyErr_Format(PyExc_SystemError, |
| 402 | "bad format string: %.200s", formatsave); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 403 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 404 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 405 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 406 | return cleanreturn(1, &freelist); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 407 | } |
| 408 | |
Victor Stinner | 6518a93 | 2017-01-17 01:29:49 +0100 | [diff] [blame] | 409 | static int |
| 410 | vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags) |
| 411 | { |
| 412 | PyObject **stack; |
| 413 | Py_ssize_t nargs; |
| 414 | |
| 415 | if (!(flags & FLAG_COMPAT)) { |
| 416 | assert(args != NULL); |
| 417 | |
| 418 | if (!PyTuple_Check(args)) { |
| 419 | PyErr_SetString(PyExc_SystemError, |
| 420 | "new style getargs format but argument is not a tuple"); |
| 421 | return 0; |
| 422 | } |
| 423 | |
| 424 | stack = &PyTuple_GET_ITEM(args, 0); |
| 425 | nargs = PyTuple_GET_SIZE(args); |
| 426 | } |
| 427 | else { |
| 428 | stack = NULL; |
| 429 | nargs = 0; |
| 430 | } |
| 431 | |
| 432 | return vgetargs1_impl(args, stack, nargs, format, p_va, flags); |
| 433 | } |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 434 | |
| 435 | |
| 436 | static void |
Victor Stinner | 84bb1cf | 2013-05-17 00:12:04 +0200 | [diff] [blame] | 437 | seterror(Py_ssize_t iarg, const char *msg, int *levels, const char *fname, |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 438 | const char *message) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 439 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 440 | char buf[512]; |
| 441 | int i; |
| 442 | char *p = buf; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 443 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 444 | if (PyErr_Occurred()) |
| 445 | return; |
| 446 | else if (message == NULL) { |
| 447 | if (fname != NULL) { |
| 448 | PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname); |
| 449 | p += strlen(p); |
| 450 | } |
| 451 | if (iarg != 0) { |
| 452 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
Richard Oudkerk | 25296ce | 2013-05-18 17:35:19 +0100 | [diff] [blame] | 453 | "argument %" PY_FORMAT_SIZE_T "d", iarg); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 454 | i = 0; |
| 455 | p += strlen(p); |
Georg Brandl | 142ad66 | 2013-10-14 07:01:11 +0200 | [diff] [blame] | 456 | while (i < 32 && levels[i] > 0 && (int)(p-buf) < 220) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 457 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
| 458 | ", item %d", levels[i]-1); |
| 459 | p += strlen(p); |
| 460 | i++; |
| 461 | } |
| 462 | } |
| 463 | else { |
| 464 | PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument"); |
| 465 | p += strlen(p); |
| 466 | } |
| 467 | PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg); |
| 468 | message = buf; |
| 469 | } |
Serhiy Storchaka | 4cd63ef | 2016-02-08 01:22:47 +0200 | [diff] [blame] | 470 | if (msg[0] == '(') { |
| 471 | PyErr_SetString(PyExc_SystemError, message); |
| 472 | } |
| 473 | else { |
| 474 | PyErr_SetString(PyExc_TypeError, message); |
| 475 | } |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 476 | } |
| 477 | |
| 478 | |
| 479 | /* Convert a tuple argument. |
| 480 | On entry, *p_format points to the character _after_ the opening '('. |
| 481 | On successful exit, *p_format points to the closing ')'. |
| 482 | If successful: |
| 483 | *p_format and *p_va are updated, |
| 484 | *levels and *msgbuf are untouched, |
| 485 | and NULL is returned. |
| 486 | If the argument is invalid: |
| 487 | *p_format is unchanged, |
| 488 | *p_va is undefined, |
| 489 | *levels is a 0-terminated list of item numbers, |
| 490 | *msgbuf contains an error message, whose format is: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 491 | "must be <typename1>, not <typename2>", where: |
| 492 | <typename1> is the name of the expected type, and |
| 493 | <typename2> is the name of the actual type, |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 494 | and msgbuf is returned. |
| 495 | */ |
| 496 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 497 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 498 | converttuple(PyObject *arg, const char **p_format, va_list *p_va, int flags, |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 499 | int *levels, char *msgbuf, size_t bufsize, int toplevel, |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 500 | freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 501 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 502 | int level = 0; |
| 503 | int n = 0; |
| 504 | const char *format = *p_format; |
| 505 | int i; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 506 | Py_ssize_t len; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 507 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 508 | for (;;) { |
| 509 | int c = *format++; |
| 510 | if (c == '(') { |
| 511 | if (level == 0) |
| 512 | n++; |
| 513 | level++; |
| 514 | } |
| 515 | else if (c == ')') { |
| 516 | if (level == 0) |
| 517 | break; |
| 518 | level--; |
| 519 | } |
| 520 | else if (c == ':' || c == ';' || c == '\0') |
| 521 | break; |
Antoine Pitrou | 4de7457 | 2013-02-09 23:11:27 +0100 | [diff] [blame] | 522 | else if (level == 0 && Py_ISALPHA(Py_CHARMASK(c))) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 523 | n++; |
| 524 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 525 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 526 | if (!PySequence_Check(arg) || PyBytes_Check(arg)) { |
| 527 | levels[0] = 0; |
| 528 | PyOS_snprintf(msgbuf, bufsize, |
| 529 | toplevel ? "expected %d arguments, not %.50s" : |
| 530 | "must be %d-item sequence, not %.50s", |
| 531 | n, |
| 532 | arg == Py_None ? "None" : arg->ob_type->tp_name); |
| 533 | return msgbuf; |
| 534 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 535 | |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 536 | len = PySequence_Size(arg); |
| 537 | if (len != n) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 538 | levels[0] = 0; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 539 | if (toplevel) { |
| 540 | PyOS_snprintf(msgbuf, bufsize, |
| 541 | "expected %d arguments, not %" PY_FORMAT_SIZE_T "d", |
| 542 | n, len); |
| 543 | } |
| 544 | else { |
| 545 | PyOS_snprintf(msgbuf, bufsize, |
| 546 | "must be sequence of length %d, " |
| 547 | "not %" PY_FORMAT_SIZE_T "d", |
| 548 | n, len); |
| 549 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 550 | return msgbuf; |
| 551 | } |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 552 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 553 | format = *p_format; |
| 554 | for (i = 0; i < n; i++) { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 555 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 556 | PyObject *item; |
| 557 | item = PySequence_GetItem(arg, i); |
| 558 | if (item == NULL) { |
| 559 | PyErr_Clear(); |
| 560 | levels[0] = i+1; |
| 561 | levels[1] = 0; |
| 562 | strncpy(msgbuf, "is not retrievable", bufsize); |
| 563 | return msgbuf; |
| 564 | } |
| 565 | msg = convertitem(item, &format, p_va, flags, levels+1, |
| 566 | msgbuf, bufsize, freelist); |
| 567 | /* PySequence_GetItem calls tp->sq_item, which INCREFs */ |
| 568 | Py_XDECREF(item); |
| 569 | if (msg != NULL) { |
| 570 | levels[0] = i+1; |
| 571 | return msg; |
| 572 | } |
| 573 | } |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 574 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 575 | *p_format = format; |
| 576 | return NULL; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 577 | } |
| 578 | |
| 579 | |
| 580 | /* Convert a single item. */ |
| 581 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 582 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 583 | convertitem(PyObject *arg, const char **p_format, va_list *p_va, int flags, |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 584 | int *levels, char *msgbuf, size_t bufsize, freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 585 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 586 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 587 | const char *format = *p_format; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 588 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 589 | if (*format == '(' /* ')' */) { |
| 590 | format++; |
| 591 | msg = converttuple(arg, &format, p_va, flags, levels, msgbuf, |
| 592 | bufsize, 0, freelist); |
| 593 | if (msg == NULL) |
| 594 | format++; |
| 595 | } |
| 596 | else { |
| 597 | msg = convertsimple(arg, &format, p_va, flags, |
| 598 | msgbuf, bufsize, freelist); |
| 599 | if (msg != NULL) |
| 600 | levels[0] = 0; |
| 601 | } |
| 602 | if (msg == NULL) |
| 603 | *p_format = format; |
| 604 | return msg; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 608 | |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 609 | /* Format an error message generated by convertsimple(). */ |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 610 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 611 | static const char * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 612 | converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize) |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 613 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 614 | assert(expected != NULL); |
| 615 | assert(arg != NULL); |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 616 | if (expected[0] == '(') { |
| 617 | PyOS_snprintf(msgbuf, bufsize, |
| 618 | "%.100s", expected); |
| 619 | } |
| 620 | else { |
| 621 | PyOS_snprintf(msgbuf, bufsize, |
| 622 | "must be %.50s, not %.50s", expected, |
| 623 | arg == Py_None ? "None" : arg->ob_type->tp_name); |
| 624 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 625 | return msgbuf; |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 626 | } |
| 627 | |
| 628 | #define CONV_UNICODE "(unicode conversion error)" |
| 629 | |
Guido van Rossum | 45aecf4 | 2006-03-15 04:58:47 +0000 | [diff] [blame] | 630 | /* Explicitly check for float arguments when integers are expected. |
| 631 | Return 1 for error, 0 if ok. */ |
Neil Schemenauer | 5042da6 | 2003-02-04 20:59:40 +0000 | [diff] [blame] | 632 | static int |
| 633 | float_argument_error(PyObject *arg) |
| 634 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 635 | if (PyFloat_Check(arg)) { |
| 636 | PyErr_SetString(PyExc_TypeError, |
| 637 | "integer argument expected, got float" ); |
| 638 | return 1; |
| 639 | } |
| 640 | else |
| 641 | return 0; |
Neil Schemenauer | 5042da6 | 2003-02-04 20:59:40 +0000 | [diff] [blame] | 642 | } |
| 643 | |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 644 | /* Convert a non-tuple argument. Return NULL if conversion went OK, |
| 645 | or a string with a message describing the failure. The message is |
| 646 | formatted as "must be <desired type>, not <actual type>". |
| 647 | When failing, an exception may or may not have been raised. |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 648 | Don't call if a tuple is expected. |
| 649 | |
| 650 | When you add new format codes, please don't forget poor skipitem() below. |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 651 | */ |
| 652 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 653 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 654 | convertsimple(PyObject *arg, const char **p_format, va_list *p_va, int flags, |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 655 | char *msgbuf, size_t bufsize, freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 656 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 657 | /* For # codes */ |
| 658 | #define FETCH_SIZE int *q=NULL;Py_ssize_t *q2=NULL;\ |
| 659 | if (flags & FLAG_SIZE_T) q2=va_arg(*p_va, Py_ssize_t*); \ |
| 660 | else q=va_arg(*p_va, int*); |
Victor Stinner | b3c9e07 | 2011-01-04 02:07:34 +0000 | [diff] [blame] | 661 | #define STORE_SIZE(s) \ |
| 662 | if (flags & FLAG_SIZE_T) \ |
| 663 | *q2=s; \ |
| 664 | else { \ |
| 665 | if (INT_MAX < s) { \ |
| 666 | PyErr_SetString(PyExc_OverflowError, \ |
| 667 | "size does not fit in an int"); \ |
| 668 | return converterr("", arg, msgbuf, bufsize); \ |
| 669 | } \ |
Victor Stinner | 9550ef3 | 2013-06-05 01:18:13 +0200 | [diff] [blame] | 670 | *q = (int)s; \ |
Victor Stinner | b3c9e07 | 2011-01-04 02:07:34 +0000 | [diff] [blame] | 671 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 672 | #define BUFFER_LEN ((flags & FLAG_SIZE_T) ? *q2:*q) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 673 | #define RETURN_ERR_OCCURRED return msgbuf |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 674 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 675 | const char *format = *p_format; |
| 676 | char c = *format++; |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 677 | const char *sarg; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 678 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 679 | switch (c) { |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 680 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 681 | case 'b': { /* unsigned byte -- very short int */ |
| 682 | char *p = va_arg(*p_va, char *); |
| 683 | long ival; |
| 684 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 685 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 686 | ival = PyLong_AsLong(arg); |
| 687 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 688 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 689 | else if (ival < 0) { |
| 690 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 691 | "unsigned byte integer is less than minimum"); |
| 692 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 693 | } |
| 694 | else if (ival > UCHAR_MAX) { |
| 695 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 696 | "unsigned byte integer is greater than maximum"); |
| 697 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 698 | } |
| 699 | else |
| 700 | *p = (unsigned char) ival; |
| 701 | break; |
| 702 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 703 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 704 | case 'B': {/* byte sized bitfield - both signed and unsigned |
| 705 | values allowed */ |
| 706 | char *p = va_arg(*p_va, char *); |
| 707 | long ival; |
| 708 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 709 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 710 | ival = PyLong_AsUnsignedLongMask(arg); |
| 711 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 712 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 713 | else |
| 714 | *p = (unsigned char) ival; |
| 715 | break; |
| 716 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 717 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 718 | case 'h': {/* signed short int */ |
| 719 | short *p = va_arg(*p_va, short *); |
| 720 | long ival; |
| 721 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 722 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 723 | ival = PyLong_AsLong(arg); |
| 724 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 725 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 726 | else if (ival < SHRT_MIN) { |
| 727 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 728 | "signed short integer is less than minimum"); |
| 729 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 730 | } |
| 731 | else if (ival > SHRT_MAX) { |
| 732 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 733 | "signed short integer is greater than maximum"); |
| 734 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 735 | } |
| 736 | else |
| 737 | *p = (short) ival; |
| 738 | break; |
| 739 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 740 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 741 | case 'H': { /* short int sized bitfield, both signed and |
| 742 | unsigned allowed */ |
| 743 | unsigned short *p = va_arg(*p_va, unsigned short *); |
| 744 | long ival; |
| 745 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 746 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 747 | ival = PyLong_AsUnsignedLongMask(arg); |
| 748 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 749 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 750 | else |
| 751 | *p = (unsigned short) ival; |
| 752 | break; |
| 753 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 754 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 755 | case 'i': {/* signed int */ |
| 756 | int *p = va_arg(*p_va, int *); |
| 757 | long ival; |
| 758 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 759 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 760 | ival = PyLong_AsLong(arg); |
| 761 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 762 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 763 | else if (ival > INT_MAX) { |
| 764 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 765 | "signed integer is greater than maximum"); |
| 766 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 767 | } |
| 768 | else if (ival < INT_MIN) { |
| 769 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 770 | "signed integer is less than minimum"); |
| 771 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 772 | } |
| 773 | else |
| 774 | *p = ival; |
| 775 | break; |
| 776 | } |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 777 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 778 | case 'I': { /* int sized bitfield, both signed and |
| 779 | unsigned allowed */ |
| 780 | unsigned int *p = va_arg(*p_va, unsigned int *); |
| 781 | unsigned int ival; |
| 782 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 783 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 784 | ival = (unsigned int)PyLong_AsUnsignedLongMask(arg); |
| 785 | if (ival == (unsigned int)-1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 786 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 787 | else |
| 788 | *p = ival; |
| 789 | break; |
| 790 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 791 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 792 | case 'n': /* Py_ssize_t */ |
| 793 | { |
| 794 | PyObject *iobj; |
| 795 | Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *); |
| 796 | Py_ssize_t ival = -1; |
| 797 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 798 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 799 | iobj = PyNumber_Index(arg); |
| 800 | if (iobj != NULL) { |
| 801 | ival = PyLong_AsSsize_t(iobj); |
| 802 | Py_DECREF(iobj); |
| 803 | } |
| 804 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 805 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 806 | *p = ival; |
| 807 | break; |
| 808 | } |
| 809 | case 'l': {/* long int */ |
| 810 | long *p = va_arg(*p_va, long *); |
| 811 | long ival; |
| 812 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 813 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 814 | ival = PyLong_AsLong(arg); |
| 815 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 816 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 817 | else |
| 818 | *p = ival; |
| 819 | break; |
| 820 | } |
Thomas Heller | a4ea603 | 2003-04-17 18:55:45 +0000 | [diff] [blame] | 821 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 822 | case 'k': { /* long sized bitfield */ |
| 823 | unsigned long *p = va_arg(*p_va, unsigned long *); |
| 824 | unsigned long ival; |
| 825 | if (PyLong_Check(arg)) |
| 826 | ival = PyLong_AsUnsignedLongMask(arg); |
| 827 | else |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 828 | return converterr("int", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 829 | *p = ival; |
| 830 | break; |
| 831 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 832 | |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 833 | case 'L': {/* long long */ |
| 834 | long long *p = va_arg( *p_va, long long * ); |
| 835 | long long ival; |
Mark Dickinson | c730131 | 2010-06-10 16:05:10 +0000 | [diff] [blame] | 836 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 837 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 838 | ival = PyLong_AsLongLong(arg); |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 839 | if (ival == (long long)-1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 840 | RETURN_ERR_OCCURRED; |
Mark Dickinson | c730131 | 2010-06-10 16:05:10 +0000 | [diff] [blame] | 841 | else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 842 | *p = ival; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 843 | break; |
| 844 | } |
Thomas Heller | a4ea603 | 2003-04-17 18:55:45 +0000 | [diff] [blame] | 845 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 846 | case 'K': { /* long long sized bitfield */ |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 847 | unsigned long long *p = va_arg(*p_va, unsigned long long *); |
| 848 | unsigned long long ival; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 849 | if (PyLong_Check(arg)) |
| 850 | ival = PyLong_AsUnsignedLongLongMask(arg); |
| 851 | else |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 852 | return converterr("int", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 853 | *p = ival; |
| 854 | break; |
| 855 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 856 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 857 | case 'f': {/* float */ |
| 858 | float *p = va_arg(*p_va, float *); |
| 859 | double dval = PyFloat_AsDouble(arg); |
| 860 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 861 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 862 | else |
| 863 | *p = (float) dval; |
| 864 | break; |
| 865 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 866 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 867 | case 'd': {/* double */ |
| 868 | double *p = va_arg(*p_va, double *); |
| 869 | double dval = PyFloat_AsDouble(arg); |
| 870 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 871 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 872 | else |
| 873 | *p = dval; |
| 874 | break; |
| 875 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 876 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 877 | case 'D': {/* complex double */ |
| 878 | Py_complex *p = va_arg(*p_va, Py_complex *); |
| 879 | Py_complex cval; |
| 880 | cval = PyComplex_AsCComplex(arg); |
| 881 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 882 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 883 | else |
| 884 | *p = cval; |
| 885 | break; |
| 886 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 887 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 888 | case 'c': {/* char */ |
| 889 | char *p = va_arg(*p_va, char *); |
| 890 | if (PyBytes_Check(arg) && PyBytes_Size(arg) == 1) |
| 891 | *p = PyBytes_AS_STRING(arg)[0]; |
Eli Bendersky | 906b88f | 2011-07-29 07:05:08 +0300 | [diff] [blame] | 892 | else if (PyByteArray_Check(arg) && PyByteArray_Size(arg) == 1) |
| 893 | *p = PyByteArray_AS_STRING(arg)[0]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 894 | else |
| 895 | return converterr("a byte string of length 1", arg, msgbuf, bufsize); |
| 896 | break; |
| 897 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 898 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 899 | case 'C': {/* unicode char */ |
| 900 | int *p = va_arg(*p_va, int *); |
Victor Stinner | e1335c7 | 2011-10-04 20:53:03 +0200 | [diff] [blame] | 901 | int kind; |
| 902 | void *data; |
| 903 | |
| 904 | if (!PyUnicode_Check(arg)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 905 | return converterr("a unicode character", arg, msgbuf, bufsize); |
Victor Stinner | e1335c7 | 2011-10-04 20:53:03 +0200 | [diff] [blame] | 906 | |
| 907 | if (PyUnicode_READY(arg)) |
| 908 | RETURN_ERR_OCCURRED; |
| 909 | |
| 910 | if (PyUnicode_GET_LENGTH(arg) != 1) |
| 911 | return converterr("a unicode character", arg, msgbuf, bufsize); |
| 912 | |
| 913 | kind = PyUnicode_KIND(arg); |
| 914 | data = PyUnicode_DATA(arg); |
| 915 | *p = PyUnicode_READ(kind, data, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 916 | break; |
| 917 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 918 | |
Larry Hastings | faf91e7 | 2012-05-05 16:54:29 -0700 | [diff] [blame] | 919 | case 'p': {/* boolean *p*redicate */ |
| 920 | int *p = va_arg(*p_va, int *); |
| 921 | int val = PyObject_IsTrue(arg); |
| 922 | if (val > 0) |
| 923 | *p = 1; |
| 924 | else if (val == 0) |
| 925 | *p = 0; |
| 926 | else |
| 927 | RETURN_ERR_OCCURRED; |
| 928 | break; |
| 929 | } |
| 930 | |
Victor Stinner | 3dcb5ac | 2010-06-08 22:54:19 +0000 | [diff] [blame] | 931 | /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 932 | need to be cleaned up! */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 933 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 934 | case 'y': {/* any bytes-like object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 935 | void **p = (void **)va_arg(*p_va, char **); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 936 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 937 | Py_ssize_t count; |
| 938 | if (*format == '*') { |
| 939 | if (getbuffer(arg, (Py_buffer*)p, &buf) < 0) |
| 940 | return converterr(buf, arg, msgbuf, bufsize); |
| 941 | format++; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 942 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 943 | return converterr( |
| 944 | "(cleanup problem)", |
| 945 | arg, msgbuf, bufsize); |
| 946 | } |
| 947 | break; |
| 948 | } |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 949 | count = convertbuffer(arg, (const void **)p, &buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 950 | if (count < 0) |
| 951 | return converterr(buf, arg, msgbuf, bufsize); |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 952 | if (*format == '#') { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 953 | FETCH_SIZE; |
| 954 | STORE_SIZE(count); |
| 955 | format++; |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 956 | } else { |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 957 | if (strlen(*p) != (size_t)count) { |
| 958 | PyErr_SetString(PyExc_ValueError, "embedded null byte"); |
| 959 | RETURN_ERR_OCCURRED; |
| 960 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 961 | } |
| 962 | break; |
| 963 | } |
Walter Dörwald | 612344f | 2007-05-04 19:28:21 +0000 | [diff] [blame] | 964 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 965 | case 's': /* text string or bytes-like object */ |
| 966 | case 'z': /* text string, bytes-like object or None */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 967 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 968 | if (*format == '*') { |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 969 | /* "s*" or "z*" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 970 | Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 971 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 972 | if (c == 'z' && arg == Py_None) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 973 | PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0); |
| 974 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 975 | Py_ssize_t len; |
| 976 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 977 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 978 | return converterr(CONV_UNICODE, |
| 979 | arg, msgbuf, bufsize); |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 980 | PyBuffer_FillInfo(p, arg, (void *)sarg, len, 1, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 981 | } |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 982 | else { /* any bytes-like object */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 983 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 984 | if (getbuffer(arg, p, &buf) < 0) |
| 985 | return converterr(buf, arg, msgbuf, bufsize); |
| 986 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 987 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 988 | return converterr( |
| 989 | "(cleanup problem)", |
| 990 | arg, msgbuf, bufsize); |
| 991 | } |
| 992 | format++; |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 993 | } else if (*format == '#') { /* a string or read-only bytes-like object */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 994 | /* "s#" or "z#" */ |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 995 | const void **p = (const void **)va_arg(*p_va, const char **); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 996 | FETCH_SIZE; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 997 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 998 | if (c == 'z' && arg == Py_None) { |
| 999 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1000 | STORE_SIZE(0); |
| 1001 | } |
| 1002 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1003 | Py_ssize_t len; |
| 1004 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 1005 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1006 | return converterr(CONV_UNICODE, |
| 1007 | arg, msgbuf, bufsize); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1008 | *p = sarg; |
| 1009 | STORE_SIZE(len); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1010 | } |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 1011 | else { /* read-only bytes-like object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1012 | /* XXX Really? */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1013 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1014 | Py_ssize_t count = convertbuffer(arg, p, &buf); |
| 1015 | if (count < 0) |
| 1016 | return converterr(buf, arg, msgbuf, bufsize); |
| 1017 | STORE_SIZE(count); |
| 1018 | } |
| 1019 | format++; |
| 1020 | } else { |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1021 | /* "s" or "z" */ |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 1022 | const char **p = va_arg(*p_va, const char **); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1023 | Py_ssize_t len; |
| 1024 | sarg = NULL; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1025 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1026 | if (c == 'z' && arg == Py_None) |
| 1027 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1028 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1029 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 1030 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1031 | return converterr(CONV_UNICODE, |
| 1032 | arg, msgbuf, bufsize); |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 1033 | if (strlen(sarg) != (size_t)len) { |
| 1034 | PyErr_SetString(PyExc_ValueError, "embedded null character"); |
| 1035 | RETURN_ERR_OCCURRED; |
| 1036 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1037 | *p = sarg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1038 | } |
| 1039 | else |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1040 | return converterr(c == 'z' ? "str or None" : "str", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1041 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1042 | } |
| 1043 | break; |
| 1044 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1045 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1046 | case 'u': /* raw unicode buffer (Py_UNICODE *) */ |
| 1047 | case 'Z': /* raw unicode buffer or None */ |
| 1048 | { |
Brett Cannon | b94767f | 2011-02-22 20:15:44 +0000 | [diff] [blame] | 1049 | Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **); |
| 1050 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 1051 | if (*format == '#') { |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 1052 | /* "u#" or "Z#" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1053 | FETCH_SIZE; |
Travis E. Oliphant | ddacf96 | 2007-10-13 21:03:27 +0000 | [diff] [blame] | 1054 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1055 | if (c == 'Z' && arg == Py_None) { |
| 1056 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1057 | STORE_SIZE(0); |
| 1058 | } |
| 1059 | else if (PyUnicode_Check(arg)) { |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 1060 | Py_ssize_t len; |
| 1061 | *p = PyUnicode_AsUnicodeAndSize(arg, &len); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1062 | if (*p == NULL) |
| 1063 | RETURN_ERR_OCCURRED; |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 1064 | STORE_SIZE(len); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1065 | } |
Victor Stinner | 5216e6d | 2010-06-08 21:45:51 +0000 | [diff] [blame] | 1066 | else |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 1067 | return converterr(c == 'Z' ? "str or None" : "str", |
| 1068 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1069 | format++; |
| 1070 | } else { |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 1071 | /* "u" or "Z" */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1072 | if (c == 'Z' && arg == Py_None) |
| 1073 | *p = NULL; |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 1074 | else if (PyUnicode_Check(arg)) { |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 1075 | Py_ssize_t len; |
| 1076 | *p = PyUnicode_AsUnicodeAndSize(arg, &len); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1077 | if (*p == NULL) |
| 1078 | RETURN_ERR_OCCURRED; |
Serhiy Storchaka | 460bd0d | 2016-11-20 12:16:46 +0200 | [diff] [blame] | 1079 | if (wcslen(*p) != (size_t)len) { |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 1080 | PyErr_SetString(PyExc_ValueError, "embedded null character"); |
| 1081 | RETURN_ERR_OCCURRED; |
| 1082 | } |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 1083 | } else |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1084 | return converterr(c == 'Z' ? "str or None" : "str", |
| 1085 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1086 | } |
| 1087 | break; |
| 1088 | } |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1089 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1090 | case 'e': {/* encoded string */ |
| 1091 | char **buffer; |
| 1092 | const char *encoding; |
| 1093 | PyObject *s; |
| 1094 | int recode_strings; |
| 1095 | Py_ssize_t size; |
| 1096 | const char *ptr; |
Jeremy Hylton | 4819e97 | 2001-10-11 14:40:37 +0000 | [diff] [blame] | 1097 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1098 | /* Get 'e' parameter: the encoding name */ |
| 1099 | encoding = (const char *)va_arg(*p_va, const char *); |
| 1100 | if (encoding == NULL) |
| 1101 | encoding = PyUnicode_GetDefaultEncoding(); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1102 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1103 | /* Get output buffer parameter: |
| 1104 | 's' (recode all objects via Unicode) or |
| 1105 | 't' (only recode non-string objects) |
| 1106 | */ |
| 1107 | if (*format == 's') |
| 1108 | recode_strings = 1; |
| 1109 | else if (*format == 't') |
| 1110 | recode_strings = 0; |
| 1111 | else |
| 1112 | return converterr( |
| 1113 | "(unknown parser marker combination)", |
| 1114 | arg, msgbuf, bufsize); |
| 1115 | buffer = (char **)va_arg(*p_va, char **); |
| 1116 | format++; |
| 1117 | if (buffer == NULL) |
| 1118 | return converterr("(buffer is NULL)", |
| 1119 | arg, msgbuf, bufsize); |
Benjamin Peterson | 9edd2bd | 2008-08-27 00:31:37 +0000 | [diff] [blame] | 1120 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1121 | /* Encode object */ |
| 1122 | if (!recode_strings && |
| 1123 | (PyBytes_Check(arg) || PyByteArray_Check(arg))) { |
| 1124 | s = arg; |
| 1125 | Py_INCREF(s); |
Serhiy Storchaka | 460bd0d | 2016-11-20 12:16:46 +0200 | [diff] [blame] | 1126 | if (PyBytes_Check(arg)) { |
| 1127 | size = PyBytes_GET_SIZE(s); |
| 1128 | ptr = PyBytes_AS_STRING(s); |
| 1129 | } |
| 1130 | else { |
| 1131 | size = PyByteArray_GET_SIZE(s); |
| 1132 | ptr = PyByteArray_AS_STRING(s); |
| 1133 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1134 | } |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1135 | else if (PyUnicode_Check(arg)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1136 | /* Encode object; use default error handling */ |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1137 | s = PyUnicode_AsEncodedString(arg, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1138 | encoding, |
| 1139 | NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1140 | if (s == NULL) |
| 1141 | return converterr("(encoding failed)", |
| 1142 | arg, msgbuf, bufsize); |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1143 | assert(PyBytes_Check(s)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1144 | size = PyBytes_GET_SIZE(s); |
| 1145 | ptr = PyBytes_AS_STRING(s); |
| 1146 | if (ptr == NULL) |
| 1147 | ptr = ""; |
| 1148 | } |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1149 | else { |
| 1150 | return converterr( |
| 1151 | recode_strings ? "str" : "str, bytes or bytearray", |
| 1152 | arg, msgbuf, bufsize); |
| 1153 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1154 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1155 | /* Write output; output is guaranteed to be 0-terminated */ |
| 1156 | if (*format == '#') { |
| 1157 | /* Using buffer length parameter '#': |
| 1158 | |
| 1159 | - if *buffer is NULL, a new buffer of the |
| 1160 | needed size is allocated and the data |
| 1161 | copied into it; *buffer is updated to point |
| 1162 | to the new buffer; the caller is |
| 1163 | responsible for PyMem_Free()ing it after |
| 1164 | usage |
| 1165 | |
| 1166 | - if *buffer is not NULL, the data is |
| 1167 | copied to *buffer; *buffer_len has to be |
| 1168 | set to the size of the buffer on input; |
| 1169 | buffer overflow is signalled with an error; |
| 1170 | buffer has to provide enough room for the |
| 1171 | encoded string plus the trailing 0-byte |
| 1172 | |
| 1173 | - in both cases, *buffer_len is updated to |
| 1174 | the size of the buffer /excluding/ the |
| 1175 | trailing 0-byte |
| 1176 | |
| 1177 | */ |
| 1178 | FETCH_SIZE; |
| 1179 | |
| 1180 | format++; |
| 1181 | if (q == NULL && q2 == NULL) { |
| 1182 | Py_DECREF(s); |
| 1183 | return converterr( |
| 1184 | "(buffer_len is NULL)", |
| 1185 | arg, msgbuf, bufsize); |
| 1186 | } |
| 1187 | if (*buffer == NULL) { |
| 1188 | *buffer = PyMem_NEW(char, size + 1); |
| 1189 | if (*buffer == NULL) { |
| 1190 | Py_DECREF(s); |
Victor Stinner | 2872e5b | 2010-06-06 20:38:02 +0000 | [diff] [blame] | 1191 | PyErr_NoMemory(); |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1192 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1193 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1194 | if (addcleanup(*buffer, freelist, cleanup_ptr)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1195 | Py_DECREF(s); |
| 1196 | return converterr( |
| 1197 | "(cleanup problem)", |
| 1198 | arg, msgbuf, bufsize); |
| 1199 | } |
| 1200 | } else { |
| 1201 | if (size + 1 > BUFFER_LEN) { |
| 1202 | Py_DECREF(s); |
Serhiy Storchaka | 4cd63ef | 2016-02-08 01:22:47 +0200 | [diff] [blame] | 1203 | PyErr_Format(PyExc_ValueError, |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1204 | "encoded string too long " |
| 1205 | "(%zd, maximum length %zd)", |
| 1206 | (Py_ssize_t)size, (Py_ssize_t)(BUFFER_LEN-1)); |
| 1207 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1208 | } |
| 1209 | } |
| 1210 | memcpy(*buffer, ptr, size+1); |
| 1211 | STORE_SIZE(size); |
| 1212 | } else { |
| 1213 | /* Using a 0-terminated buffer: |
| 1214 | |
| 1215 | - the encoded string has to be 0-terminated |
| 1216 | for this variant to work; if it is not, an |
| 1217 | error raised |
| 1218 | |
| 1219 | - a new buffer of the needed size is |
| 1220 | allocated and the data copied into it; |
| 1221 | *buffer is updated to point to the new |
| 1222 | buffer; the caller is responsible for |
| 1223 | PyMem_Free()ing it after usage |
| 1224 | |
| 1225 | */ |
| 1226 | if ((Py_ssize_t)strlen(ptr) != size) { |
| 1227 | Py_DECREF(s); |
| 1228 | return converterr( |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1229 | "encoded string without null bytes", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1230 | arg, msgbuf, bufsize); |
| 1231 | } |
| 1232 | *buffer = PyMem_NEW(char, size + 1); |
| 1233 | if (*buffer == NULL) { |
| 1234 | Py_DECREF(s); |
Victor Stinner | 2872e5b | 2010-06-06 20:38:02 +0000 | [diff] [blame] | 1235 | PyErr_NoMemory(); |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1236 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1237 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1238 | if (addcleanup(*buffer, freelist, cleanup_ptr)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1239 | Py_DECREF(s); |
| 1240 | return converterr("(cleanup problem)", |
| 1241 | arg, msgbuf, bufsize); |
| 1242 | } |
| 1243 | memcpy(*buffer, ptr, size+1); |
| 1244 | } |
| 1245 | Py_DECREF(s); |
| 1246 | break; |
| 1247 | } |
| 1248 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1249 | case 'S': { /* PyBytes object */ |
| 1250 | PyObject **p = va_arg(*p_va, PyObject **); |
| 1251 | if (PyBytes_Check(arg)) |
| 1252 | *p = arg; |
| 1253 | else |
| 1254 | return converterr("bytes", arg, msgbuf, bufsize); |
| 1255 | break; |
| 1256 | } |
| 1257 | |
| 1258 | case 'Y': { /* PyByteArray object */ |
| 1259 | PyObject **p = va_arg(*p_va, PyObject **); |
| 1260 | if (PyByteArray_Check(arg)) |
| 1261 | *p = arg; |
| 1262 | else |
Victor Stinner | 5216e6d | 2010-06-08 21:45:51 +0000 | [diff] [blame] | 1263 | return converterr("bytearray", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1264 | break; |
| 1265 | } |
| 1266 | |
| 1267 | case 'U': { /* PyUnicode object */ |
| 1268 | PyObject **p = va_arg(*p_va, PyObject **); |
Victor Stinner | a1b0c9f | 2012-05-29 12:30:29 +0200 | [diff] [blame] | 1269 | if (PyUnicode_Check(arg)) { |
| 1270 | if (PyUnicode_READY(arg) == -1) |
| 1271 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1272 | *p = arg; |
Victor Stinner | a1b0c9f | 2012-05-29 12:30:29 +0200 | [diff] [blame] | 1273 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1274 | else |
| 1275 | return converterr("str", arg, msgbuf, bufsize); |
| 1276 | break; |
| 1277 | } |
| 1278 | |
| 1279 | case 'O': { /* object */ |
| 1280 | PyTypeObject *type; |
| 1281 | PyObject **p; |
| 1282 | if (*format == '!') { |
| 1283 | type = va_arg(*p_va, PyTypeObject*); |
| 1284 | p = va_arg(*p_va, PyObject **); |
| 1285 | format++; |
| 1286 | if (PyType_IsSubtype(arg->ob_type, type)) |
| 1287 | *p = arg; |
| 1288 | else |
| 1289 | return converterr(type->tp_name, arg, msgbuf, bufsize); |
| 1290 | |
| 1291 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1292 | else if (*format == '&') { |
| 1293 | typedef int (*converter)(PyObject *, void *); |
| 1294 | converter convert = va_arg(*p_va, converter); |
| 1295 | void *addr = va_arg(*p_va, void *); |
| 1296 | int res; |
| 1297 | format++; |
| 1298 | if (! (res = (*convert)(arg, addr))) |
| 1299 | return converterr("(unspecified)", |
| 1300 | arg, msgbuf, bufsize); |
| 1301 | if (res == Py_CLEANUP_SUPPORTED && |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1302 | addcleanup(addr, freelist, convert) == -1) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1303 | return converterr("(cleanup problem)", |
| 1304 | arg, msgbuf, bufsize); |
| 1305 | } |
| 1306 | else { |
| 1307 | p = va_arg(*p_va, PyObject **); |
| 1308 | *p = arg; |
| 1309 | } |
| 1310 | break; |
| 1311 | } |
| 1312 | |
| 1313 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1314 | case 'w': { /* "w*": memory buffer, read-write access */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1315 | void **p = va_arg(*p_va, void **); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1316 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1317 | if (*format != '*') |
| 1318 | return converterr( |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1319 | "(invalid use of 'w' format character)", |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1320 | arg, msgbuf, bufsize); |
| 1321 | format++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1322 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1323 | /* Caller is interested in Py_buffer, and the object |
| 1324 | supports it directly. */ |
| 1325 | if (PyObject_GetBuffer(arg, (Py_buffer*)p, PyBUF_WRITABLE) < 0) { |
| 1326 | PyErr_Clear(); |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1327 | return converterr("read-write bytes-like object", |
| 1328 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1329 | } |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1330 | if (!PyBuffer_IsContiguous((Py_buffer*)p, 'C')) { |
| 1331 | PyBuffer_Release((Py_buffer*)p); |
| 1332 | return converterr("contiguous buffer", arg, msgbuf, bufsize); |
| 1333 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1334 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1335 | return converterr( |
| 1336 | "(cleanup problem)", |
| 1337 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1338 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1339 | break; |
| 1340 | } |
| 1341 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1342 | default: |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1343 | return converterr("(impossible<bad format char>)", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1344 | |
| 1345 | } |
| 1346 | |
| 1347 | *p_format = format; |
| 1348 | return NULL; |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1349 | |
| 1350 | #undef FETCH_SIZE |
| 1351 | #undef STORE_SIZE |
| 1352 | #undef BUFFER_LEN |
| 1353 | #undef RETURN_ERR_OCCURRED |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 1354 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1355 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1356 | static Py_ssize_t |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 1357 | convertbuffer(PyObject *arg, const void **p, const char **errmsg) |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1358 | { |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1359 | PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1360 | Py_ssize_t count; |
| 1361 | Py_buffer view; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 1362 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1363 | *errmsg = NULL; |
| 1364 | *p = NULL; |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1365 | if (pb != NULL && pb->bf_releasebuffer != NULL) { |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1366 | *errmsg = "read-only bytes-like object"; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1367 | return -1; |
| 1368 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 1369 | |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1370 | if (getbuffer(arg, &view, errmsg) < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1371 | return -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1372 | count = view.len; |
| 1373 | *p = view.buf; |
| 1374 | PyBuffer_Release(&view); |
| 1375 | return count; |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1376 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1377 | |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1378 | static int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1379 | getbuffer(PyObject *arg, Py_buffer *view, const char **errmsg) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1380 | { |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1381 | if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) { |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1382 | *errmsg = "bytes-like object"; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1383 | return -1; |
| 1384 | } |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1385 | if (!PyBuffer_IsContiguous(view, 'C')) { |
Victor Stinner | 21e0948 | 2010-06-24 22:57:10 +0000 | [diff] [blame] | 1386 | PyBuffer_Release(view); |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1387 | *errmsg = "contiguous buffer"; |
| 1388 | return -1; |
| 1389 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1390 | return 0; |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1391 | } |
| 1392 | |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1393 | /* Support for keyword arguments donated by |
| 1394 | Geoff Philbrick <philbric@delphi.hks.com> */ |
| 1395 | |
Tim Peters | f8cd3e8 | 2001-10-27 04:26:57 +0000 | [diff] [blame] | 1396 | /* Return false (0) for error, else true. */ |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 1397 | int |
| 1398 | PyArg_ParseTupleAndKeywords(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1399 | PyObject *keywords, |
| 1400 | const char *format, |
| 1401 | char **kwlist, ...) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1402 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1403 | int retval; |
| 1404 | va_list va; |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1405 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1406 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1407 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1408 | format == NULL || |
| 1409 | kwlist == NULL) |
| 1410 | { |
| 1411 | PyErr_BadInternalCall(); |
| 1412 | return 0; |
| 1413 | } |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1414 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1415 | va_start(va, kwlist); |
| 1416 | retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0); |
| 1417 | va_end(va); |
| 1418 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1419 | } |
| 1420 | |
| 1421 | int |
| 1422 | _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1423 | PyObject *keywords, |
| 1424 | const char *format, |
| 1425 | char **kwlist, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1426 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1427 | int retval; |
| 1428 | va_list va; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1429 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1430 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1431 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1432 | format == NULL || |
| 1433 | kwlist == NULL) |
| 1434 | { |
| 1435 | PyErr_BadInternalCall(); |
| 1436 | return 0; |
| 1437 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1438 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1439 | va_start(va, kwlist); |
| 1440 | retval = vgetargskeywords(args, keywords, format, |
| 1441 | kwlist, &va, FLAG_SIZE_T); |
| 1442 | va_end(va); |
| 1443 | return retval; |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1444 | } |
| 1445 | |
| 1446 | |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1447 | int |
| 1448 | PyArg_VaParseTupleAndKeywords(PyObject *args, |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1449 | PyObject *keywords, |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1450 | const char *format, |
Martin v. Löwis | 15e6274 | 2006-02-27 16:46:16 +0000 | [diff] [blame] | 1451 | char **kwlist, va_list va) |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1452 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1453 | int retval; |
| 1454 | va_list lva; |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1455 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1456 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1457 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1458 | format == NULL || |
| 1459 | kwlist == NULL) |
| 1460 | { |
| 1461 | PyErr_BadInternalCall(); |
| 1462 | return 0; |
| 1463 | } |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1464 | |
Benjamin Peterson | 0c21214 | 2016-09-20 20:39:33 -0700 | [diff] [blame] | 1465 | va_copy(lva, va); |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1466 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1467 | retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0); |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 1468 | va_end(lva); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1469 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1470 | } |
| 1471 | |
| 1472 | int |
| 1473 | _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1474 | PyObject *keywords, |
| 1475 | const char *format, |
| 1476 | char **kwlist, va_list va) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1477 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1478 | int retval; |
| 1479 | va_list lva; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1480 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1481 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1482 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1483 | format == NULL || |
| 1484 | kwlist == NULL) |
| 1485 | { |
| 1486 | PyErr_BadInternalCall(); |
| 1487 | return 0; |
| 1488 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1489 | |
Benjamin Peterson | 0c21214 | 2016-09-20 20:39:33 -0700 | [diff] [blame] | 1490 | va_copy(lva, va); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1491 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1492 | retval = vgetargskeywords(args, keywords, format, |
| 1493 | kwlist, &lva, FLAG_SIZE_T); |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 1494 | va_end(lva); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1495 | return retval; |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1496 | } |
| 1497 | |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1498 | int |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1499 | _PyArg_ParseTupleAndKeywordsFast(PyObject *args, PyObject *keywords, |
| 1500 | struct _PyArg_Parser *parser, ...) |
| 1501 | { |
| 1502 | int retval; |
| 1503 | va_list va; |
| 1504 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1505 | va_start(va, parser); |
| 1506 | retval = vgetargskeywordsfast(args, keywords, parser, &va, 0); |
| 1507 | va_end(va); |
| 1508 | return retval; |
| 1509 | } |
| 1510 | |
| 1511 | int |
| 1512 | _PyArg_ParseTupleAndKeywordsFast_SizeT(PyObject *args, PyObject *keywords, |
| 1513 | struct _PyArg_Parser *parser, ...) |
| 1514 | { |
| 1515 | int retval; |
| 1516 | va_list va; |
| 1517 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1518 | va_start(va, parser); |
| 1519 | retval = vgetargskeywordsfast(args, keywords, parser, &va, FLAG_SIZE_T); |
| 1520 | va_end(va); |
| 1521 | return retval; |
| 1522 | } |
| 1523 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1524 | int |
Victor Stinner | 3e1fad6 | 2017-01-17 01:29:01 +0100 | [diff] [blame] | 1525 | _PyArg_ParseStackAndKeywords(PyObject **args, Py_ssize_t nargs, PyObject *kwnames, |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1526 | struct _PyArg_Parser *parser, ...) |
| 1527 | { |
| 1528 | int retval; |
| 1529 | va_list va; |
| 1530 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1531 | va_start(va, parser); |
| 1532 | retval = vgetargskeywordsfast_impl(args, nargs, NULL, kwnames, parser, &va, 0); |
| 1533 | va_end(va); |
| 1534 | return retval; |
| 1535 | } |
| 1536 | |
| 1537 | int |
Victor Stinner | 3e1fad6 | 2017-01-17 01:29:01 +0100 | [diff] [blame] | 1538 | _PyArg_ParseStackAndKeywords_SizeT(PyObject **args, Py_ssize_t nargs, PyObject *kwnames, |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1539 | struct _PyArg_Parser *parser, ...) |
| 1540 | { |
| 1541 | int retval; |
| 1542 | va_list va; |
| 1543 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1544 | va_start(va, parser); |
| 1545 | retval = vgetargskeywordsfast_impl(args, nargs, NULL, kwnames, parser, &va, FLAG_SIZE_T); |
| 1546 | va_end(va); |
| 1547 | return retval; |
| 1548 | } |
| 1549 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1550 | |
| 1551 | int |
| 1552 | _PyArg_VaParseTupleAndKeywordsFast(PyObject *args, PyObject *keywords, |
| 1553 | struct _PyArg_Parser *parser, va_list va) |
| 1554 | { |
| 1555 | int retval; |
| 1556 | va_list lva; |
| 1557 | |
Benjamin Peterson | 0c21214 | 2016-09-20 20:39:33 -0700 | [diff] [blame] | 1558 | va_copy(lva, va); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1559 | |
| 1560 | retval = vgetargskeywordsfast(args, keywords, parser, &lva, 0); |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 1561 | va_end(lva); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1562 | return retval; |
| 1563 | } |
| 1564 | |
| 1565 | int |
| 1566 | _PyArg_VaParseTupleAndKeywordsFast_SizeT(PyObject *args, PyObject *keywords, |
| 1567 | struct _PyArg_Parser *parser, va_list va) |
| 1568 | { |
| 1569 | int retval; |
| 1570 | va_list lva; |
| 1571 | |
Benjamin Peterson | 0c21214 | 2016-09-20 20:39:33 -0700 | [diff] [blame] | 1572 | va_copy(lva, va); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1573 | |
| 1574 | retval = vgetargskeywordsfast(args, keywords, parser, &lva, FLAG_SIZE_T); |
Christian Heimes | 2f2fee1 | 2016-09-21 11:37:27 +0200 | [diff] [blame] | 1575 | va_end(lva); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1576 | return retval; |
| 1577 | } |
| 1578 | |
| 1579 | int |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1580 | PyArg_ValidateKeywordArguments(PyObject *kwargs) |
| 1581 | { |
Benjamin Peterson | f609654 | 2010-11-17 22:33:12 +0000 | [diff] [blame] | 1582 | if (!PyDict_Check(kwargs)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1583 | PyErr_BadInternalCall(); |
| 1584 | return 0; |
| 1585 | } |
| 1586 | if (!_PyDict_HasOnlyStringKeys(kwargs)) { |
| 1587 | PyErr_SetString(PyExc_TypeError, |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 1588 | "keywords must be strings"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1589 | return 0; |
| 1590 | } |
| 1591 | return 1; |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1592 | } |
| 1593 | |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1594 | #define IS_END_OF_FORMAT(c) (c == '\0' || c == ';' || c == ':') |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1595 | |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1596 | static int |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 1597 | vgetargskeywords(PyObject *args, PyObject *kwargs, const char *format, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1598 | char **kwlist, va_list *p_va, int flags) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1599 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1600 | char msgbuf[512]; |
| 1601 | int levels[32]; |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1602 | const char *fname, *msg, *custom_msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1603 | int min = INT_MAX; |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1604 | int max = INT_MAX; |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1605 | int i, pos, len; |
| 1606 | int skip = 0; |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 1607 | Py_ssize_t nargs, nkwargs; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1608 | PyObject *current_arg; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1609 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
Benjamin Peterson | 40be9e5 | 2014-02-11 10:09:27 -0500 | [diff] [blame] | 1610 | freelist_t freelist; |
| 1611 | |
| 1612 | freelist.entries = static_entries; |
| 1613 | freelist.first_available = 0; |
| 1614 | freelist.entries_malloced = 0; |
Tim Peters | f4331c1 | 2001-10-27 00:17:34 +0000 | [diff] [blame] | 1615 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1616 | assert(args != NULL && PyTuple_Check(args)); |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 1617 | assert(kwargs == NULL || PyDict_Check(kwargs)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1618 | assert(format != NULL); |
| 1619 | assert(kwlist != NULL); |
| 1620 | assert(p_va != NULL); |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1621 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1622 | /* grab the function name or custom error msg first (mutually exclusive) */ |
| 1623 | fname = strchr(format, ':'); |
| 1624 | if (fname) { |
| 1625 | fname++; |
| 1626 | custom_msg = NULL; |
| 1627 | } |
| 1628 | else { |
| 1629 | custom_msg = strchr(format,';'); |
| 1630 | if (custom_msg) |
| 1631 | custom_msg++; |
| 1632 | } |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1633 | |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1634 | /* scan kwlist and count the number of positional-only parameters */ |
| 1635 | for (pos = 0; kwlist[pos] && !*kwlist[pos]; pos++) { |
| 1636 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1637 | /* scan kwlist and get greatest possible nbr of args */ |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1638 | for (len = pos; kwlist[len]; len++) { |
| 1639 | if (!*kwlist[len]) { |
| 1640 | PyErr_SetString(PyExc_SystemError, |
| 1641 | "Empty keyword parameter name"); |
| 1642 | return cleanreturn(0, &freelist); |
| 1643 | } |
| 1644 | } |
Tim Peters | f8cd3e8 | 2001-10-27 04:26:57 +0000 | [diff] [blame] | 1645 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1646 | if (len > STATIC_FREELIST_ENTRIES) { |
| 1647 | freelist.entries = PyMem_NEW(freelistentry_t, len); |
| 1648 | if (freelist.entries == NULL) { |
| 1649 | PyErr_NoMemory(); |
| 1650 | return 0; |
| 1651 | } |
| 1652 | freelist.entries_malloced = 1; |
Benjamin Peterson | 7ed6727 | 2012-03-16 12:21:02 -0500 | [diff] [blame] | 1653 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1654 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1655 | nargs = PyTuple_GET_SIZE(args); |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 1656 | nkwargs = (kwargs == NULL) ? 0 : PyDict_GET_SIZE(kwargs); |
| 1657 | if (nargs + nkwargs > len) { |
Oren Milman | bf9075a | 2017-08-23 21:16:48 +0300 | [diff] [blame] | 1658 | /* Adding "keyword" (when nargs == 0) prevents producing wrong error |
| 1659 | messages in some special cases (see bpo-31229). */ |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 1660 | PyErr_Format(PyExc_TypeError, |
Oren Milman | bf9075a | 2017-08-23 21:16:48 +0300 | [diff] [blame] | 1661 | "%.200s%s takes at most %d %sargument%s (%zd given)", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1662 | (fname == NULL) ? "function" : fname, |
| 1663 | (fname == NULL) ? "" : "()", |
| 1664 | len, |
Oren Milman | bf9075a | 2017-08-23 21:16:48 +0300 | [diff] [blame] | 1665 | (nargs == 0) ? "keyword " : "", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1666 | (len == 1) ? "" : "s", |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 1667 | nargs + nkwargs); |
Benjamin Peterson | 01feaec | 2012-03-16 13:25:58 -0500 | [diff] [blame] | 1668 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1669 | } |
Tim Peters | c2f0112 | 2001-10-27 07:25:06 +0000 | [diff] [blame] | 1670 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1671 | /* convert tuple args and keyword args in same loop, using kwlist to drive process */ |
| 1672 | for (i = 0; i < len; i++) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1673 | if (*format == '|') { |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1674 | if (min != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1675 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1676 | "Invalid format string (| specified twice)"); |
| 1677 | return cleanreturn(0, &freelist); |
| 1678 | } |
| 1679 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1680 | min = i; |
| 1681 | format++; |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1682 | |
| 1683 | if (max != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1684 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1685 | "Invalid format string ($ before |)"); |
| 1686 | return cleanreturn(0, &freelist); |
| 1687 | } |
| 1688 | } |
| 1689 | if (*format == '$') { |
| 1690 | if (max != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1691 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1692 | "Invalid format string ($ specified twice)"); |
| 1693 | return cleanreturn(0, &freelist); |
| 1694 | } |
| 1695 | |
| 1696 | max = i; |
| 1697 | format++; |
| 1698 | |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1699 | if (max < pos) { |
| 1700 | PyErr_SetString(PyExc_SystemError, |
| 1701 | "Empty parameter name after $"); |
| 1702 | return cleanreturn(0, &freelist); |
| 1703 | } |
| 1704 | if (skip) { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1705 | /* Now we know the minimal and the maximal numbers of |
| 1706 | * positional arguments and can raise an exception with |
| 1707 | * informative message (see below). */ |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1708 | break; |
| 1709 | } |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1710 | if (max < nargs) { |
Serhiy Storchaka | 5eb788b | 2017-06-06 18:45:22 +0300 | [diff] [blame] | 1711 | if (max == 0) { |
| 1712 | PyErr_Format(PyExc_TypeError, |
| 1713 | "%.200s%s takes no positional arguments", |
| 1714 | (fname == NULL) ? "function" : fname, |
| 1715 | (fname == NULL) ? "" : "()"); |
| 1716 | } |
| 1717 | else { |
| 1718 | PyErr_Format(PyExc_TypeError, |
| 1719 | "%.200s%s takes %s %d positional arguments" |
| 1720 | " (%d given)", |
| 1721 | (fname == NULL) ? "function" : fname, |
| 1722 | (fname == NULL) ? "" : "()", |
| 1723 | (min != INT_MAX) ? "at most" : "exactly", |
| 1724 | max, nargs); |
| 1725 | } |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1726 | return cleanreturn(0, &freelist); |
| 1727 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1728 | } |
| 1729 | if (IS_END_OF_FORMAT(*format)) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1730 | PyErr_Format(PyExc_SystemError, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1731 | "More keyword list entries (%d) than " |
| 1732 | "format specifiers (%d)", len, i); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1733 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1734 | } |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1735 | if (!skip) { |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1736 | if (i < nargs) { |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1737 | current_arg = PyTuple_GET_ITEM(args, i); |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1738 | } |
| 1739 | else if (nkwargs && i >= pos) { |
| 1740 | current_arg = PyDict_GetItemString(kwargs, kwlist[i]); |
| 1741 | if (current_arg) |
| 1742 | --nkwargs; |
| 1743 | } |
| 1744 | else { |
| 1745 | current_arg = NULL; |
| 1746 | } |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1747 | |
| 1748 | if (current_arg) { |
| 1749 | msg = convertitem(current_arg, &format, p_va, flags, |
| 1750 | levels, msgbuf, sizeof(msgbuf), &freelist); |
| 1751 | if (msg) { |
| 1752 | seterror(i+1, msg, levels, fname, custom_msg); |
| 1753 | return cleanreturn(0, &freelist); |
| 1754 | } |
| 1755 | continue; |
| 1756 | } |
| 1757 | |
| 1758 | if (i < min) { |
| 1759 | if (i < pos) { |
| 1760 | assert (min == INT_MAX); |
| 1761 | assert (max == INT_MAX); |
| 1762 | skip = 1; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1763 | /* At that moment we still don't know the minimal and |
| 1764 | * the maximal numbers of positional arguments. Raising |
| 1765 | * an exception is deferred until we encounter | and $ |
| 1766 | * or the end of the format. */ |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1767 | } |
| 1768 | else { |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 1769 | PyErr_Format(PyExc_TypeError, "%.200s%s missing required " |
| 1770 | "argument '%s' (pos %d)", |
| 1771 | (fname == NULL) ? "function" : fname, |
| 1772 | (fname == NULL) ? "" : "()", |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1773 | kwlist[i], i+1); |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1774 | return cleanreturn(0, &freelist); |
| 1775 | } |
| 1776 | } |
| 1777 | /* current code reports success when all required args |
| 1778 | * fulfilled and no keyword args left, with no further |
| 1779 | * validation. XXX Maybe skip this in debug build ? |
| 1780 | */ |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 1781 | if (!nkwargs && !skip) { |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1782 | return cleanreturn(1, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1783 | } |
| 1784 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1785 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1786 | /* We are into optional args, skip thru to any remaining |
| 1787 | * keyword args */ |
| 1788 | msg = skipitem(&format, p_va, flags); |
| 1789 | if (msg) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1790 | PyErr_Format(PyExc_SystemError, "%s: '%s'", msg, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1791 | format); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1792 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1793 | } |
| 1794 | } |
Tim Peters | b054be4 | 2001-10-27 05:07:41 +0000 | [diff] [blame] | 1795 | |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1796 | if (skip) { |
| 1797 | PyErr_Format(PyExc_TypeError, |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 1798 | "%.200s%s takes %s %d positional arguments" |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1799 | " (%d given)", |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 1800 | (fname == NULL) ? "function" : fname, |
| 1801 | (fname == NULL) ? "" : "()", |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1802 | (Py_MIN(pos, min) < i) ? "at least" : "exactly", |
| 1803 | Py_MIN(pos, min), nargs); |
| 1804 | return cleanreturn(0, &freelist); |
| 1805 | } |
| 1806 | |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1807 | if (!IS_END_OF_FORMAT(*format) && (*format != '|') && (*format != '$')) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1808 | PyErr_Format(PyExc_SystemError, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1809 | "more argument specifiers than keyword list entries " |
| 1810 | "(remaining format:'%s')", format); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1811 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1812 | } |
Tim Peters | c2f0112 | 2001-10-27 07:25:06 +0000 | [diff] [blame] | 1813 | |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 1814 | if (nkwargs > 0) { |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1815 | PyObject *key; |
| 1816 | Py_ssize_t j; |
| 1817 | /* make sure there are no arguments given by name and position */ |
| 1818 | for (i = pos; i < nargs; i++) { |
| 1819 | current_arg = PyDict_GetItemString(kwargs, kwlist[i]); |
| 1820 | if (current_arg) { |
| 1821 | /* arg present in tuple and in dict */ |
| 1822 | PyErr_Format(PyExc_TypeError, |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 1823 | "argument for %.200s%s given by name ('%s') " |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1824 | "and position (%d)", |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 1825 | (fname == NULL) ? "function" : fname, |
| 1826 | (fname == NULL) ? "" : "()", |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1827 | kwlist[i], i+1); |
| 1828 | return cleanreturn(0, &freelist); |
| 1829 | } |
| 1830 | } |
| 1831 | /* make sure there are no extraneous keyword arguments */ |
| 1832 | j = 0; |
| 1833 | while (PyDict_Next(kwargs, &j, &key, NULL)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1834 | int match = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1835 | if (!PyUnicode_Check(key)) { |
| 1836 | PyErr_SetString(PyExc_TypeError, |
| 1837 | "keywords must be strings"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1838 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1839 | } |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1840 | for (i = pos; i < len; i++) { |
| 1841 | if (_PyUnicode_EqualToASCIIString(key, kwlist[i])) { |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1842 | match = 1; |
| 1843 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1844 | } |
| 1845 | } |
| 1846 | if (!match) { |
| 1847 | PyErr_Format(PyExc_TypeError, |
Victor Stinner | 93b5513 | 2010-05-19 00:54:06 +0000 | [diff] [blame] | 1848 | "'%U' is an invalid keyword " |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 1849 | "argument for %.200s%s", |
| 1850 | key, |
| 1851 | (fname == NULL) ? "this function" : fname, |
| 1852 | (fname == NULL) ? "" : "()"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1853 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1854 | } |
| 1855 | } |
| 1856 | } |
| 1857 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1858 | return cleanreturn(1, &freelist); |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1859 | } |
| 1860 | |
| 1861 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1862 | /* List of static parsers. */ |
| 1863 | static struct _PyArg_Parser *static_arg_parsers = NULL; |
| 1864 | |
| 1865 | static int |
| 1866 | parser_init(struct _PyArg_Parser *parser) |
| 1867 | { |
| 1868 | const char * const *keywords; |
| 1869 | const char *format, *msg; |
| 1870 | int i, len, min, max, nkw; |
| 1871 | PyObject *kwtuple; |
| 1872 | |
| 1873 | assert(parser->format != NULL); |
| 1874 | assert(parser->keywords != NULL); |
| 1875 | if (parser->kwtuple != NULL) { |
| 1876 | return 1; |
| 1877 | } |
| 1878 | |
| 1879 | /* grab the function name or custom error msg first (mutually exclusive) */ |
| 1880 | parser->fname = strchr(parser->format, ':'); |
| 1881 | if (parser->fname) { |
| 1882 | parser->fname++; |
| 1883 | parser->custom_msg = NULL; |
| 1884 | } |
| 1885 | else { |
| 1886 | parser->custom_msg = strchr(parser->format,';'); |
| 1887 | if (parser->custom_msg) |
| 1888 | parser->custom_msg++; |
| 1889 | } |
| 1890 | |
| 1891 | keywords = parser->keywords; |
| 1892 | /* scan keywords and count the number of positional-only parameters */ |
| 1893 | for (i = 0; keywords[i] && !*keywords[i]; i++) { |
| 1894 | } |
| 1895 | parser->pos = i; |
| 1896 | /* scan keywords and get greatest possible nbr of args */ |
| 1897 | for (; keywords[i]; i++) { |
| 1898 | if (!*keywords[i]) { |
| 1899 | PyErr_SetString(PyExc_SystemError, |
| 1900 | "Empty keyword parameter name"); |
| 1901 | return 0; |
| 1902 | } |
| 1903 | } |
| 1904 | len = i; |
| 1905 | |
| 1906 | min = max = INT_MAX; |
| 1907 | format = parser->format; |
| 1908 | for (i = 0; i < len; i++) { |
| 1909 | if (*format == '|') { |
| 1910 | if (min != INT_MAX) { |
| 1911 | PyErr_SetString(PyExc_SystemError, |
| 1912 | "Invalid format string (| specified twice)"); |
| 1913 | return 0; |
| 1914 | } |
| 1915 | if (max != INT_MAX) { |
| 1916 | PyErr_SetString(PyExc_SystemError, |
| 1917 | "Invalid format string ($ before |)"); |
| 1918 | return 0; |
| 1919 | } |
| 1920 | min = i; |
| 1921 | format++; |
| 1922 | } |
| 1923 | if (*format == '$') { |
| 1924 | if (max != INT_MAX) { |
| 1925 | PyErr_SetString(PyExc_SystemError, |
| 1926 | "Invalid format string ($ specified twice)"); |
| 1927 | return 0; |
| 1928 | } |
| 1929 | if (i < parser->pos) { |
| 1930 | PyErr_SetString(PyExc_SystemError, |
| 1931 | "Empty parameter name after $"); |
| 1932 | return 0; |
| 1933 | } |
| 1934 | max = i; |
| 1935 | format++; |
| 1936 | } |
| 1937 | if (IS_END_OF_FORMAT(*format)) { |
| 1938 | PyErr_Format(PyExc_SystemError, |
| 1939 | "More keyword list entries (%d) than " |
| 1940 | "format specifiers (%d)", len, i); |
| 1941 | return 0; |
| 1942 | } |
| 1943 | |
| 1944 | msg = skipitem(&format, NULL, 0); |
| 1945 | if (msg) { |
| 1946 | PyErr_Format(PyExc_SystemError, "%s: '%s'", msg, |
| 1947 | format); |
| 1948 | return 0; |
| 1949 | } |
| 1950 | } |
| 1951 | parser->min = Py_MIN(min, len); |
| 1952 | parser->max = Py_MIN(max, len); |
| 1953 | |
| 1954 | if (!IS_END_OF_FORMAT(*format) && (*format != '|') && (*format != '$')) { |
| 1955 | PyErr_Format(PyExc_SystemError, |
| 1956 | "more argument specifiers than keyword list entries " |
| 1957 | "(remaining format:'%s')", format); |
| 1958 | return 0; |
| 1959 | } |
| 1960 | |
| 1961 | nkw = len - parser->pos; |
| 1962 | kwtuple = PyTuple_New(nkw); |
| 1963 | if (kwtuple == NULL) { |
| 1964 | return 0; |
| 1965 | } |
| 1966 | keywords = parser->keywords + parser->pos; |
| 1967 | for (i = 0; i < nkw; i++) { |
| 1968 | PyObject *str = PyUnicode_FromString(keywords[i]); |
| 1969 | if (str == NULL) { |
| 1970 | Py_DECREF(kwtuple); |
| 1971 | return 0; |
| 1972 | } |
| 1973 | PyUnicode_InternInPlace(&str); |
| 1974 | PyTuple_SET_ITEM(kwtuple, i, str); |
| 1975 | } |
| 1976 | parser->kwtuple = kwtuple; |
| 1977 | |
| 1978 | assert(parser->next == NULL); |
| 1979 | parser->next = static_arg_parsers; |
| 1980 | static_arg_parsers = parser; |
| 1981 | return 1; |
| 1982 | } |
| 1983 | |
| 1984 | static void |
| 1985 | parser_clear(struct _PyArg_Parser *parser) |
| 1986 | { |
| 1987 | Py_CLEAR(parser->kwtuple); |
| 1988 | } |
| 1989 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1990 | static PyObject* |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1991 | find_keyword(PyObject *kwargs, PyObject *kwnames, PyObject **kwstack, PyObject *key) |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1992 | { |
| 1993 | Py_ssize_t i, nkwargs; |
| 1994 | |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 1995 | if (kwargs != NULL) { |
| 1996 | return PyDict_GetItem(kwargs, key); |
| 1997 | } |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1998 | nkwargs = PyTuple_GET_SIZE(kwnames); |
| 1999 | for (i=0; i < nkwargs; i++) { |
| 2000 | PyObject *kwname = PyTuple_GET_ITEM(kwnames, i); |
| 2001 | |
| 2002 | /* ptr==ptr should match in most cases since keyword keys |
| 2003 | should be interned strings */ |
| 2004 | if (kwname == key) { |
| 2005 | return kwstack[i]; |
| 2006 | } |
| 2007 | if (!PyUnicode_Check(kwname)) { |
| 2008 | /* ignore non-string keyword keys: |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2009 | an error will be raised below */ |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2010 | continue; |
| 2011 | } |
| 2012 | if (_PyUnicode_EQ(kwname, key)) { |
| 2013 | return kwstack[i]; |
| 2014 | } |
| 2015 | } |
| 2016 | return NULL; |
| 2017 | } |
| 2018 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2019 | static int |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2020 | vgetargskeywordsfast_impl(PyObject **args, Py_ssize_t nargs, |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2021 | PyObject *kwargs, PyObject *kwnames, |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2022 | struct _PyArg_Parser *parser, |
| 2023 | va_list *p_va, int flags) |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2024 | { |
| 2025 | PyObject *kwtuple; |
| 2026 | char msgbuf[512]; |
| 2027 | int levels[32]; |
| 2028 | const char *format; |
| 2029 | const char *msg; |
| 2030 | PyObject *keyword; |
| 2031 | int i, pos, len; |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2032 | Py_ssize_t nkwargs; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2033 | PyObject *current_arg; |
| 2034 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
| 2035 | freelist_t freelist; |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2036 | PyObject **kwstack = NULL; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2037 | |
| 2038 | freelist.entries = static_entries; |
| 2039 | freelist.first_available = 0; |
| 2040 | freelist.entries_malloced = 0; |
| 2041 | |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2042 | assert(kwargs == NULL || PyDict_Check(kwargs)); |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2043 | assert(kwargs == NULL || kwnames == NULL); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2044 | assert(p_va != NULL); |
| 2045 | |
Victor Stinner | 80ab22f | 2017-01-16 23:16:47 +0100 | [diff] [blame] | 2046 | if (parser == NULL) { |
| 2047 | PyErr_BadInternalCall(); |
| 2048 | return 0; |
| 2049 | } |
| 2050 | |
| 2051 | if (kwnames != NULL && !PyTuple_Check(kwnames)) { |
| 2052 | PyErr_BadInternalCall(); |
| 2053 | return 0; |
| 2054 | } |
| 2055 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2056 | if (!parser_init(parser)) { |
| 2057 | return 0; |
| 2058 | } |
| 2059 | |
| 2060 | kwtuple = parser->kwtuple; |
| 2061 | pos = parser->pos; |
Segev Finer | e7bc7aa | 2017-07-26 18:58:25 +0300 | [diff] [blame] | 2062 | len = pos + (int)PyTuple_GET_SIZE(kwtuple); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2063 | |
| 2064 | if (len > STATIC_FREELIST_ENTRIES) { |
| 2065 | freelist.entries = PyMem_NEW(freelistentry_t, len); |
| 2066 | if (freelist.entries == NULL) { |
| 2067 | PyErr_NoMemory(); |
| 2068 | return 0; |
| 2069 | } |
| 2070 | freelist.entries_malloced = 1; |
| 2071 | } |
| 2072 | |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2073 | if (kwargs != NULL) { |
| 2074 | nkwargs = PyDict_GET_SIZE(kwargs); |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2075 | } |
| 2076 | else if (kwnames != NULL) { |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2077 | nkwargs = PyTuple_GET_SIZE(kwnames); |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2078 | kwstack = args + nargs; |
| 2079 | } |
| 2080 | else { |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2081 | nkwargs = 0; |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2082 | } |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2083 | if (nargs + nkwargs > len) { |
Oren Milman | bf9075a | 2017-08-23 21:16:48 +0300 | [diff] [blame] | 2084 | /* Adding "keyword" (when nargs == 0) prevents producing wrong error |
| 2085 | messages in some special cases (see bpo-31229). */ |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2086 | PyErr_Format(PyExc_TypeError, |
Oren Milman | bf9075a | 2017-08-23 21:16:48 +0300 | [diff] [blame] | 2087 | "%.200s%s takes at most %d %sargument%s (%zd given)", |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2088 | (parser->fname == NULL) ? "function" : parser->fname, |
| 2089 | (parser->fname == NULL) ? "" : "()", |
| 2090 | len, |
Oren Milman | bf9075a | 2017-08-23 21:16:48 +0300 | [diff] [blame] | 2091 | (nargs == 0) ? "keyword " : "", |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2092 | (len == 1) ? "" : "s", |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2093 | nargs + nkwargs); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2094 | return cleanreturn(0, &freelist); |
| 2095 | } |
| 2096 | if (parser->max < nargs) { |
Serhiy Storchaka | 5eb788b | 2017-06-06 18:45:22 +0300 | [diff] [blame] | 2097 | if (parser->max == 0) { |
| 2098 | PyErr_Format(PyExc_TypeError, |
Serhiy Storchaka | f9f1cca | 2017-06-09 19:27:06 +0300 | [diff] [blame] | 2099 | "%.200s%s takes no positional arguments", |
Serhiy Storchaka | 5eb788b | 2017-06-06 18:45:22 +0300 | [diff] [blame] | 2100 | (parser->fname == NULL) ? "function" : parser->fname, |
| 2101 | (parser->fname == NULL) ? "" : "()"); |
| 2102 | } |
| 2103 | else { |
| 2104 | PyErr_Format(PyExc_TypeError, |
Serhiy Storchaka | f9f1cca | 2017-06-09 19:27:06 +0300 | [diff] [blame] | 2105 | "%.200s%s takes %s %d positional arguments (%d given)", |
Serhiy Storchaka | 5eb788b | 2017-06-06 18:45:22 +0300 | [diff] [blame] | 2106 | (parser->fname == NULL) ? "function" : parser->fname, |
| 2107 | (parser->fname == NULL) ? "" : "()", |
| 2108 | (parser->min != INT_MAX) ? "at most" : "exactly", |
| 2109 | parser->max, nargs); |
| 2110 | } |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2111 | return cleanreturn(0, &freelist); |
| 2112 | } |
| 2113 | |
| 2114 | format = parser->format; |
| 2115 | /* convert tuple args and keyword args in same loop, using kwtuple to drive process */ |
| 2116 | for (i = 0; i < len; i++) { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2117 | if (*format == '|') { |
| 2118 | format++; |
| 2119 | } |
| 2120 | if (*format == '$') { |
| 2121 | format++; |
| 2122 | } |
| 2123 | assert(!IS_END_OF_FORMAT(*format)); |
| 2124 | |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2125 | if (i < nargs) { |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2126 | current_arg = args[i]; |
Victor Stinner | a9efb2f | 2016-09-09 17:40:22 -0700 | [diff] [blame] | 2127 | } |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2128 | else if (nkwargs && i >= pos) { |
| 2129 | keyword = PyTuple_GET_ITEM(kwtuple, i - pos); |
| 2130 | current_arg = find_keyword(kwargs, kwnames, kwstack, keyword); |
| 2131 | if (current_arg) |
| 2132 | --nkwargs; |
| 2133 | } |
| 2134 | else { |
| 2135 | current_arg = NULL; |
| 2136 | } |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2137 | |
| 2138 | if (current_arg) { |
| 2139 | msg = convertitem(current_arg, &format, p_va, flags, |
| 2140 | levels, msgbuf, sizeof(msgbuf), &freelist); |
| 2141 | if (msg) { |
| 2142 | seterror(i+1, msg, levels, parser->fname, parser->custom_msg); |
| 2143 | return cleanreturn(0, &freelist); |
| 2144 | } |
| 2145 | continue; |
| 2146 | } |
| 2147 | |
| 2148 | if (i < parser->min) { |
| 2149 | /* Less arguments than required */ |
| 2150 | if (i < pos) { |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2151 | Py_ssize_t min = Py_MIN(pos, parser->min); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2152 | PyErr_Format(PyExc_TypeError, |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2153 | "%.200s%s takes %s %d positional arguments" |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2154 | " (%d given)", |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2155 | (parser->fname == NULL) ? "function" : parser->fname, |
| 2156 | (parser->fname == NULL) ? "" : "()", |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2157 | min < parser->max ? "at least" : "exactly", |
| 2158 | min, nargs); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2159 | } |
| 2160 | else { |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2161 | keyword = PyTuple_GET_ITEM(kwtuple, i - pos); |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2162 | PyErr_Format(PyExc_TypeError, "%.200s%s missing required " |
| 2163 | "argument '%U' (pos %d)", |
| 2164 | (parser->fname == NULL) ? "function" : parser->fname, |
| 2165 | (parser->fname == NULL) ? "" : "()", |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2166 | keyword, i+1); |
| 2167 | } |
| 2168 | return cleanreturn(0, &freelist); |
| 2169 | } |
| 2170 | /* current code reports success when all required args |
| 2171 | * fulfilled and no keyword args left, with no further |
| 2172 | * validation. XXX Maybe skip this in debug build ? |
| 2173 | */ |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2174 | if (!nkwargs) { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2175 | return cleanreturn(1, &freelist); |
| 2176 | } |
| 2177 | |
| 2178 | /* We are into optional args, skip thru to any remaining |
| 2179 | * keyword args */ |
| 2180 | msg = skipitem(&format, p_va, flags); |
| 2181 | assert(msg == NULL); |
| 2182 | } |
| 2183 | |
| 2184 | assert(IS_END_OF_FORMAT(*format) || (*format == '|') || (*format == '$')); |
| 2185 | |
Victor Stinner | c0083fc | 2017-01-17 00:37:42 +0100 | [diff] [blame] | 2186 | if (nkwargs > 0) { |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2187 | Py_ssize_t j; |
| 2188 | /* make sure there are no arguments given by name and position */ |
| 2189 | for (i = pos; i < nargs; i++) { |
| 2190 | keyword = PyTuple_GET_ITEM(kwtuple, i - pos); |
| 2191 | current_arg = find_keyword(kwargs, kwnames, kwstack, keyword); |
| 2192 | if (current_arg) { |
| 2193 | /* arg present in tuple and in dict */ |
| 2194 | PyErr_Format(PyExc_TypeError, |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2195 | "argument for %.200s%s given by name ('%U') " |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2196 | "and position (%d)", |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2197 | (parser->fname == NULL) ? "function" : parser->fname, |
| 2198 | (parser->fname == NULL) ? "" : "()", |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2199 | keyword, i+1); |
| 2200 | return cleanreturn(0, &freelist); |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2201 | } |
| 2202 | } |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2203 | /* make sure there are no extraneous keyword arguments */ |
| 2204 | j = 0; |
| 2205 | while (1) { |
| 2206 | int match; |
| 2207 | if (kwargs != NULL) { |
| 2208 | if (!PyDict_Next(kwargs, &j, &keyword, NULL)) |
| 2209 | break; |
| 2210 | } |
| 2211 | else { |
| 2212 | if (j >= PyTuple_GET_SIZE(kwnames)) |
| 2213 | break; |
| 2214 | keyword = PyTuple_GET_ITEM(kwnames, j); |
| 2215 | j++; |
| 2216 | } |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2217 | |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2218 | if (!PyUnicode_Check(keyword)) { |
| 2219 | PyErr_SetString(PyExc_TypeError, |
| 2220 | "keywords must be strings"); |
| 2221 | return cleanreturn(0, &freelist); |
| 2222 | } |
| 2223 | match = PySequence_Contains(kwtuple, keyword); |
| 2224 | if (match <= 0) { |
| 2225 | if (!match) { |
| 2226 | PyErr_Format(PyExc_TypeError, |
| 2227 | "'%U' is an invalid keyword " |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2228 | "argument for %.200s%s", |
| 2229 | keyword, |
| 2230 | (parser->fname == NULL) ? "this function" : parser->fname, |
| 2231 | (parser->fname == NULL) ? "" : "()"); |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2232 | } |
Serhiy Storchaka | 1741441 | 2017-01-17 10:07:25 +0200 | [diff] [blame] | 2233 | return cleanreturn(0, &freelist); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2234 | } |
| 2235 | } |
| 2236 | } |
| 2237 | |
| 2238 | return cleanreturn(1, &freelist); |
| 2239 | } |
| 2240 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2241 | static int |
| 2242 | vgetargskeywordsfast(PyObject *args, PyObject *keywords, |
| 2243 | struct _PyArg_Parser *parser, va_list *p_va, int flags) |
| 2244 | { |
| 2245 | PyObject **stack; |
| 2246 | Py_ssize_t nargs; |
| 2247 | |
Victor Stinner | 80ab22f | 2017-01-16 23:16:47 +0100 | [diff] [blame] | 2248 | if (args == NULL |
| 2249 | || !PyTuple_Check(args) |
| 2250 | || (keywords != NULL && !PyDict_Check(keywords))) |
| 2251 | { |
| 2252 | PyErr_BadInternalCall(); |
| 2253 | return 0; |
| 2254 | } |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2255 | |
| 2256 | stack = &PyTuple_GET_ITEM(args, 0); |
| 2257 | nargs = PyTuple_GET_SIZE(args); |
| 2258 | return vgetargskeywordsfast_impl(stack, nargs, keywords, NULL, |
| 2259 | parser, p_va, flags); |
| 2260 | } |
| 2261 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2262 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 2263 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 2264 | skipitem(const char **p_format, va_list *p_va, int flags) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 2265 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2266 | const char *format = *p_format; |
| 2267 | char c = *format++; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2268 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2269 | switch (c) { |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2270 | |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 2271 | /* |
| 2272 | * codes that take a single data pointer as an argument |
| 2273 | * (the type of the pointer is irrelevant) |
| 2274 | */ |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2275 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2276 | case 'b': /* byte -- very short int */ |
| 2277 | case 'B': /* byte as bitfield */ |
| 2278 | case 'h': /* short int */ |
| 2279 | case 'H': /* short int as bitfield */ |
| 2280 | case 'i': /* int */ |
| 2281 | case 'I': /* int sized bitfield */ |
| 2282 | case 'l': /* long int */ |
| 2283 | case 'k': /* long int sized bitfield */ |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 2284 | case 'L': /* long long */ |
| 2285 | case 'K': /* long long sized bitfield */ |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 2286 | case 'n': /* Py_ssize_t */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2287 | case 'f': /* float */ |
| 2288 | case 'd': /* double */ |
| 2289 | case 'D': /* complex double */ |
| 2290 | case 'c': /* char */ |
| 2291 | case 'C': /* unicode char */ |
Larry Hastings | 10ba07a | 2012-05-07 02:44:50 -0700 | [diff] [blame] | 2292 | case 'p': /* boolean predicate */ |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 2293 | case 'S': /* string object */ |
| 2294 | case 'Y': /* string object */ |
| 2295 | case 'U': /* unicode string object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2296 | { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2297 | if (p_va != NULL) { |
| 2298 | (void) va_arg(*p_va, void *); |
| 2299 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2300 | break; |
| 2301 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 2302 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2303 | /* string codes */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2304 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2305 | case 'e': /* string with encoding */ |
| 2306 | { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2307 | if (p_va != NULL) { |
| 2308 | (void) va_arg(*p_va, const char *); |
| 2309 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2310 | if (!(*format == 's' || *format == 't')) |
| 2311 | /* after 'e', only 's' and 't' is allowed */ |
| 2312 | goto err; |
| 2313 | format++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2314 | } |
Stefan Krah | f432a32 | 2017-08-21 13:09:59 +0200 | [diff] [blame] | 2315 | /* fall through */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2316 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2317 | case 's': /* string */ |
| 2318 | case 'z': /* string or None */ |
| 2319 | case 'y': /* bytes */ |
| 2320 | case 'u': /* unicode string */ |
Larry Hastings | d9e4a41 | 2012-05-08 03:51:18 -0700 | [diff] [blame] | 2321 | case 'Z': /* unicode string or None */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2322 | case 'w': /* buffer, read-write */ |
| 2323 | { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2324 | if (p_va != NULL) { |
| 2325 | (void) va_arg(*p_va, char **); |
| 2326 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2327 | if (*format == '#') { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2328 | if (p_va != NULL) { |
| 2329 | if (flags & FLAG_SIZE_T) |
| 2330 | (void) va_arg(*p_va, Py_ssize_t *); |
| 2331 | else |
| 2332 | (void) va_arg(*p_va, int *); |
| 2333 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2334 | format++; |
| 2335 | } else if ((c == 's' || c == 'z' || c == 'y') && *format == '*') { |
| 2336 | format++; |
| 2337 | } |
| 2338 | break; |
| 2339 | } |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2340 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2341 | case 'O': /* object */ |
| 2342 | { |
| 2343 | if (*format == '!') { |
| 2344 | format++; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2345 | if (p_va != NULL) { |
| 2346 | (void) va_arg(*p_va, PyTypeObject*); |
| 2347 | (void) va_arg(*p_va, PyObject **); |
| 2348 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2349 | } |
| 2350 | else if (*format == '&') { |
| 2351 | typedef int (*converter)(PyObject *, void *); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2352 | if (p_va != NULL) { |
| 2353 | (void) va_arg(*p_va, converter); |
| 2354 | (void) va_arg(*p_va, void *); |
| 2355 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2356 | format++; |
| 2357 | } |
| 2358 | else { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2359 | if (p_va != NULL) { |
| 2360 | (void) va_arg(*p_va, PyObject **); |
| 2361 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2362 | } |
| 2363 | break; |
| 2364 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2365 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2366 | case '(': /* bypass tuple, not handled at all previously */ |
| 2367 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 2368 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2369 | for (;;) { |
| 2370 | if (*format==')') |
| 2371 | break; |
| 2372 | if (IS_END_OF_FORMAT(*format)) |
| 2373 | return "Unmatched left paren in format " |
| 2374 | "string"; |
| 2375 | msg = skipitem(&format, p_va, flags); |
| 2376 | if (msg) |
| 2377 | return msg; |
| 2378 | } |
| 2379 | format++; |
| 2380 | break; |
| 2381 | } |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 2382 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2383 | case ')': |
| 2384 | return "Unmatched right paren in format string"; |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 2385 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2386 | default: |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2387 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2388 | return "impossible<bad format char>"; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2389 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2390 | } |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2391 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2392 | *p_format = format; |
| 2393 | return NULL; |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 2394 | } |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2395 | |
| 2396 | |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2397 | static int |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2398 | unpack_stack(PyObject **args, Py_ssize_t nargs, const char *name, |
| 2399 | Py_ssize_t min, Py_ssize_t max, va_list vargs) |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2400 | { |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2401 | Py_ssize_t i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2402 | PyObject **o; |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2403 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2404 | assert(min >= 0); |
| 2405 | assert(min <= max); |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2406 | |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2407 | if (nargs < min) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2408 | if (name != NULL) |
| 2409 | PyErr_Format( |
| 2410 | PyExc_TypeError, |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2411 | "%.200s expected %s%zd arguments, got %zd", |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2412 | name, (min == max ? "" : "at least "), min, nargs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2413 | else |
| 2414 | PyErr_Format( |
| 2415 | PyExc_TypeError, |
| 2416 | "unpacked tuple should have %s%zd elements," |
| 2417 | " but has %zd", |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2418 | (min == max ? "" : "at least "), min, nargs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2419 | return 0; |
| 2420 | } |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2421 | |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2422 | if (nargs == 0) { |
Raymond Hettinger | 9423023 | 2016-03-26 03:02:48 -0700 | [diff] [blame] | 2423 | return 1; |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2424 | } |
| 2425 | |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2426 | if (nargs > max) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2427 | if (name != NULL) |
| 2428 | PyErr_Format( |
| 2429 | PyExc_TypeError, |
Michael Seifert | 64c8f70 | 2017-04-09 09:47:12 +0200 | [diff] [blame] | 2430 | "%.200s expected %s%zd arguments, got %zd", |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2431 | name, (min == max ? "" : "at most "), max, nargs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2432 | else |
| 2433 | PyErr_Format( |
| 2434 | PyExc_TypeError, |
| 2435 | "unpacked tuple should have %s%zd elements," |
| 2436 | " but has %zd", |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2437 | (min == max ? "" : "at most "), max, nargs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2438 | return 0; |
| 2439 | } |
Raymond Hettinger | 9423023 | 2016-03-26 03:02:48 -0700 | [diff] [blame] | 2440 | |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2441 | for (i = 0; i < nargs; i++) { |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2442 | o = va_arg(vargs, PyObject **); |
| 2443 | *o = args[i]; |
| 2444 | } |
| 2445 | return 1; |
| 2446 | } |
| 2447 | |
| 2448 | int |
| 2449 | PyArg_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t max, ...) |
| 2450 | { |
| 2451 | PyObject **stack; |
| 2452 | Py_ssize_t nargs; |
| 2453 | int retval; |
| 2454 | va_list vargs; |
| 2455 | |
| 2456 | if (!PyTuple_Check(args)) { |
| 2457 | PyErr_SetString(PyExc_SystemError, |
| 2458 | "PyArg_UnpackTuple() argument list is not a tuple"); |
| 2459 | return 0; |
| 2460 | } |
| 2461 | stack = &PyTuple_GET_ITEM(args, 0); |
| 2462 | nargs = PyTuple_GET_SIZE(args); |
| 2463 | |
Raymond Hettinger | 9423023 | 2016-03-26 03:02:48 -0700 | [diff] [blame] | 2464 | #ifdef HAVE_STDARG_PROTOTYPES |
| 2465 | va_start(vargs, max); |
| 2466 | #else |
| 2467 | va_start(vargs); |
| 2468 | #endif |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2469 | retval = unpack_stack(stack, nargs, name, min, max, vargs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2470 | va_end(vargs); |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2471 | return retval; |
| 2472 | } |
| 2473 | |
| 2474 | int |
| 2475 | _PyArg_UnpackStack(PyObject **args, Py_ssize_t nargs, const char *name, |
| 2476 | Py_ssize_t min, Py_ssize_t max, ...) |
| 2477 | { |
| 2478 | int retval; |
| 2479 | va_list vargs; |
| 2480 | |
| 2481 | #ifdef HAVE_STDARG_PROTOTYPES |
| 2482 | va_start(vargs, max); |
| 2483 | #else |
| 2484 | va_start(vargs); |
| 2485 | #endif |
Victor Stinner | fdbc397 | 2017-02-01 17:42:18 +0100 | [diff] [blame] | 2486 | retval = unpack_stack(args, nargs, name, min, max, vargs); |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2487 | va_end(vargs); |
| 2488 | return retval; |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2489 | } |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2490 | |
| 2491 | |
Serhiy Storchaka | 68a001d | 2017-02-06 10:41:46 +0200 | [diff] [blame] | 2492 | #undef _PyArg_NoKeywords |
Serhiy Storchaka | 68a001d | 2017-02-06 10:41:46 +0200 | [diff] [blame] | 2493 | #undef _PyArg_NoPositional |
| 2494 | |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2495 | /* For type constructors that don't take keyword args |
| 2496 | * |
Larry Hastings | b7ccb20 | 2014-01-18 23:50:21 -0800 | [diff] [blame] | 2497 | * Sets a TypeError and returns 0 if the args/kwargs is |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 2498 | * not empty, returns 1 otherwise |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2499 | */ |
| 2500 | int |
Victor Stinner | 29d39cc | 2017-01-17 01:40:01 +0100 | [diff] [blame] | 2501 | _PyArg_NoKeywords(const char *funcname, PyObject *kwargs) |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2502 | { |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2503 | if (kwargs == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2504 | return 1; |
Victor Stinner | fe54dd8 | 2017-01-17 02:33:55 +0100 | [diff] [blame] | 2505 | } |
Victor Stinner | 29d39cc | 2017-01-17 01:40:01 +0100 | [diff] [blame] | 2506 | if (!PyDict_CheckExact(kwargs)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2507 | PyErr_BadInternalCall(); |
| 2508 | return 0; |
| 2509 | } |
Victor Stinner | 29d39cc | 2017-01-17 01:40:01 +0100 | [diff] [blame] | 2510 | if (PyDict_GET_SIZE(kwargs) == 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2511 | return 1; |
Victor Stinner | 29d39cc | 2017-01-17 01:40:01 +0100 | [diff] [blame] | 2512 | } |
| 2513 | |
Serhiy Storchaka | 5eb788b | 2017-06-06 18:45:22 +0300 | [diff] [blame] | 2514 | PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments", |
Victor Stinner | 29d39cc | 2017-01-17 01:40:01 +0100 | [diff] [blame] | 2515 | funcname); |
| 2516 | return 0; |
| 2517 | } |
| 2518 | |
| 2519 | |
| 2520 | int |
Larry Hastings | b7ccb20 | 2014-01-18 23:50:21 -0800 | [diff] [blame] | 2521 | _PyArg_NoPositional(const char *funcname, PyObject *args) |
| 2522 | { |
| 2523 | if (args == NULL) |
| 2524 | return 1; |
| 2525 | if (!PyTuple_CheckExact(args)) { |
| 2526 | PyErr_BadInternalCall(); |
| 2527 | return 0; |
| 2528 | } |
| 2529 | if (PyTuple_GET_SIZE(args) == 0) |
| 2530 | return 1; |
| 2531 | |
Serhiy Storchaka | 5eb788b | 2017-06-06 18:45:22 +0300 | [diff] [blame] | 2532 | PyErr_Format(PyExc_TypeError, "%.200s() takes no positional arguments", |
Larry Hastings | b7ccb20 | 2014-01-18 23:50:21 -0800 | [diff] [blame] | 2533 | funcname); |
| 2534 | return 0; |
| 2535 | } |
| 2536 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2537 | void |
| 2538 | _PyArg_Fini(void) |
| 2539 | { |
| 2540 | struct _PyArg_Parser *tmp, *s = static_arg_parsers; |
| 2541 | while (s) { |
| 2542 | tmp = s->next; |
| 2543 | s->next = NULL; |
| 2544 | parser_clear(s); |
| 2545 | s = tmp; |
| 2546 | } |
| 2547 | static_arg_parsers = NULL; |
| 2548 | } |
| 2549 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2550 | #ifdef __cplusplus |
| 2551 | }; |
| 2552 | #endif |