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> |
| 7 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 8 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 9 | #ifdef __cplusplus |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 10 | extern "C" { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 11 | #endif |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 12 | int PyArg_Parse(PyObject *, const char *, ...); |
| 13 | int PyArg_ParseTuple(PyObject *, const char *, ...); |
| 14 | int PyArg_VaParse(PyObject *, const char *, va_list); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 15 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 16 | int PyArg_ParseTupleAndKeywords(PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 17 | const char *, char **, ...); |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 18 | int PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 19 | const char *, char **, va_list); |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 20 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 21 | int _PyArg_ParseTupleAndKeywordsFast(PyObject *, PyObject *, |
| 22 | struct _PyArg_Parser *, ...); |
| 23 | int _PyArg_VaParseTupleAndKeywordsFast(PyObject *, PyObject *, |
| 24 | struct _PyArg_Parser *, va_list); |
| 25 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 26 | #ifdef HAVE_DECLSPEC_DLL |
| 27 | /* Export functions */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 28 | PyAPI_FUNC(int) _PyArg_Parse_SizeT(PyObject *, const char *, ...); |
Benjamin Peterson | 819a46f | 2016-09-09 20:45:06 -0700 | [diff] [blame] | 29 | PyAPI_FUNC(int) _PyArg_ParseStack_SizeT(PyObject **args, Py_ssize_t nargs, PyObject *kwnames, |
| 30 | struct _PyArg_Parser *parser, ...); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 31 | PyAPI_FUNC(int) _PyArg_ParseTuple_SizeT(PyObject *, const char *, ...); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 32 | PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
| 33 | const char *, char **, ...); |
| 34 | PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 35 | PyAPI_FUNC(int) _PyArg_VaParse_SizeT(PyObject *, const char *, va_list); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 36 | PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
| 37 | const char *, char **, va_list); |
Benjamin Peterson | 4eef505 | 2016-09-10 17:04:36 -0700 | [diff] [blame^] | 38 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 39 | PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywordsFast_SizeT(PyObject *, PyObject *, |
| 40 | struct _PyArg_Parser *, ...); |
| 41 | PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywordsFast_SizeT(PyObject *, PyObject *, |
| 42 | struct _PyArg_Parser *, va_list); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 43 | #endif |
| 44 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 45 | #define FLAG_COMPAT 1 |
| 46 | #define FLAG_SIZE_T 2 |
| 47 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 48 | typedef int (*destr_t)(PyObject *, void *); |
| 49 | |
| 50 | |
| 51 | /* Keep track of "objects" that have been allocated or initialized and |
| 52 | which will need to be deallocated or cleaned up somehow if overall |
| 53 | parsing fails. |
| 54 | */ |
| 55 | typedef struct { |
| 56 | void *item; |
| 57 | destr_t destructor; |
| 58 | } freelistentry_t; |
| 59 | |
| 60 | typedef struct { |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 61 | freelistentry_t *entries; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 62 | int first_available; |
| 63 | int entries_malloced; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 64 | } freelist_t; |
| 65 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 66 | #define STATIC_FREELIST_ENTRIES 8 |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 67 | |
| 68 | /* Forward */ |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 69 | static int vgetargs1(PyObject *, const char *, va_list *, int); |
Victor Stinner | 84bb1cf | 2013-05-17 00:12:04 +0200 | [diff] [blame] | 70 | 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] | 71 | static const char *convertitem(PyObject *, const char **, va_list *, int, int *, |
| 72 | char *, size_t, freelist_t *); |
| 73 | static const char *converttuple(PyObject *, const char **, va_list *, int, |
| 74 | int *, char *, size_t, int, freelist_t *); |
| 75 | static const char *convertsimple(PyObject *, const char **, va_list *, int, |
| 76 | char *, size_t, freelist_t *); |
| 77 | static Py_ssize_t convertbuffer(PyObject *, void **p, const char **); |
| 78 | static int getbuffer(PyObject *, Py_buffer *, const char**); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 79 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 80 | static int vgetargskeywords(PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 81 | const char *, char **, va_list *, int); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 82 | static int vgetargskeywordsfast(PyObject *, PyObject *, |
| 83 | struct _PyArg_Parser *, va_list *, int); |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 84 | static int vgetargskeywordsfast_impl(PyObject **args, Py_ssize_t nargs, |
| 85 | PyObject *keywords, PyObject *kwnames, |
| 86 | struct _PyArg_Parser *parser, |
| 87 | va_list *p_va, int flags); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 88 | static const char *skipitem(const char **, va_list *, int); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 89 | |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 90 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 91 | PyArg_Parse(PyObject *args, const char *format, ...) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 92 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 93 | int retval; |
| 94 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 95 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 96 | va_start(va, format); |
| 97 | retval = vgetargs1(args, format, &va, FLAG_COMPAT); |
| 98 | va_end(va); |
| 99 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 103 | _PyArg_Parse_SizeT(PyObject *args, const char *format, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 104 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 105 | int retval; |
| 106 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 107 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 108 | va_start(va, format); |
| 109 | retval = vgetargs1(args, format, &va, FLAG_COMPAT|FLAG_SIZE_T); |
| 110 | va_end(va); |
| 111 | return retval; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 115 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 116 | PyArg_ParseTuple(PyObject *args, const char *format, ...) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 117 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 118 | int retval; |
| 119 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 120 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 121 | va_start(va, format); |
| 122 | retval = vgetargs1(args, format, &va, 0); |
| 123 | va_end(va); |
| 124 | return retval; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 125 | } |
| 126 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 127 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 128 | _PyArg_ParseTuple_SizeT(PyObject *args, const char *format, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 129 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 130 | int retval; |
| 131 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 132 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 133 | va_start(va, format); |
| 134 | retval = vgetargs1(args, format, &va, FLAG_SIZE_T); |
| 135 | va_end(va); |
| 136 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 137 | } |
| 138 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 139 | |
| 140 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 141 | PyArg_VaParse(PyObject *args, const char *format, va_list va) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 142 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 143 | va_list lva; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 144 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 145 | Py_VA_COPY(lva, va); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 146 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 147 | return vgetargs1(args, format, &lva, 0); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 148 | } |
| 149 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 150 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 151 | _PyArg_VaParse_SizeT(PyObject *args, const char *format, va_list va) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 152 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 153 | va_list lva; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 154 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 155 | Py_VA_COPY(lva, va); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 156 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 157 | return vgetargs1(args, format, &lva, FLAG_SIZE_T); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 158 | } |
| 159 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 160 | |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 161 | /* Handle cleanup of allocated memory in case of exception */ |
| 162 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 163 | static int |
| 164 | cleanup_ptr(PyObject *self, void *ptr) |
Antoine Pitrou | f7199578 | 2008-08-29 18:37:05 +0000 | [diff] [blame] | 165 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 166 | if (ptr) { |
| 167 | PyMem_FREE(ptr); |
| 168 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 169 | return 0; |
Martin v. Löwis | c15bdef | 2009-05-29 14:47:46 +0000 | [diff] [blame] | 170 | } |
| 171 | |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 172 | static int |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 173 | cleanup_buffer(PyObject *self, void *ptr) |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 174 | { |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 175 | Py_buffer *buf = (Py_buffer *)ptr; |
| 176 | if (buf) { |
| 177 | PyBuffer_Release(buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 178 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | static int |
| 183 | addcleanup(void *ptr, freelist_t *freelist, destr_t destructor) |
| 184 | { |
| 185 | int index; |
| 186 | |
| 187 | index = freelist->first_available; |
| 188 | freelist->first_available += 1; |
| 189 | |
| 190 | freelist->entries[index].item = ptr; |
| 191 | freelist->entries[index].destructor = destructor; |
| 192 | |
| 193 | return 0; |
| 194 | } |
| 195 | |
| 196 | static int |
| 197 | cleanreturn(int retval, freelist_t *freelist) |
| 198 | { |
| 199 | int index; |
| 200 | |
| 201 | if (retval == 0) { |
| 202 | /* A failure occurred, therefore execute all of the cleanup |
| 203 | functions. |
| 204 | */ |
| 205 | for (index = 0; index < freelist->first_available; ++index) { |
| 206 | freelist->entries[index].destructor(NULL, |
| 207 | freelist->entries[index].item); |
| 208 | } |
| 209 | } |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 210 | if (freelist->entries_malloced) |
| 211 | PyMem_FREE(freelist->entries); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 212 | return retval; |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 216 | static int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 217 | vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 218 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 219 | char msgbuf[256]; |
| 220 | int levels[32]; |
| 221 | const char *fname = NULL; |
| 222 | const char *message = NULL; |
| 223 | int min = -1; |
| 224 | int max = 0; |
| 225 | int level = 0; |
| 226 | int endfmt = 0; |
| 227 | const char *formatsave = format; |
| 228 | Py_ssize_t i, len; |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 229 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 230 | int compat = flags & FLAG_COMPAT; |
Benjamin Peterson | 40be9e5 | 2014-02-11 10:09:27 -0500 | [diff] [blame] | 231 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
| 232 | freelist_t freelist; |
| 233 | |
| 234 | freelist.entries = static_entries; |
| 235 | freelist.first_available = 0; |
| 236 | freelist.entries_malloced = 0; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 237 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 238 | assert(compat || (args != (PyObject*)NULL)); |
| 239 | flags = flags & ~FLAG_COMPAT; |
Tim Peters | 5c4d5bf | 2001-02-12 22:13:26 +0000 | [diff] [blame] | 240 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 241 | while (endfmt == 0) { |
| 242 | int c = *format++; |
| 243 | switch (c) { |
| 244 | case '(': |
| 245 | if (level == 0) |
| 246 | max++; |
| 247 | level++; |
| 248 | if (level >= 30) |
| 249 | Py_FatalError("too many tuple nesting levels " |
| 250 | "in argument format string"); |
| 251 | break; |
| 252 | case ')': |
| 253 | if (level == 0) |
| 254 | Py_FatalError("excess ')' in getargs format"); |
| 255 | else |
| 256 | level--; |
| 257 | break; |
| 258 | case '\0': |
| 259 | endfmt = 1; |
| 260 | break; |
| 261 | case ':': |
| 262 | fname = format; |
| 263 | endfmt = 1; |
| 264 | break; |
| 265 | case ';': |
| 266 | message = format; |
| 267 | endfmt = 1; |
| 268 | break; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 269 | case '|': |
| 270 | if (level == 0) |
| 271 | min = max; |
| 272 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 273 | default: |
| 274 | if (level == 0) { |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 275 | if (Py_ISALPHA(Py_CHARMASK(c))) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 276 | if (c != 'e') /* skip encoded */ |
| 277 | max++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 278 | } |
| 279 | break; |
| 280 | } |
| 281 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 282 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 283 | if (level != 0) |
| 284 | Py_FatalError(/* '(' */ "missing ')' in getargs format"); |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 285 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 286 | if (min < 0) |
| 287 | min = max; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 288 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 289 | format = formatsave; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 290 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 291 | if (max > STATIC_FREELIST_ENTRIES) { |
| 292 | freelist.entries = PyMem_NEW(freelistentry_t, max); |
| 293 | if (freelist.entries == NULL) { |
| 294 | PyErr_NoMemory(); |
| 295 | return 0; |
| 296 | } |
| 297 | freelist.entries_malloced = 1; |
Benjamin Peterson | 7ed6727 | 2012-03-16 12:21:02 -0500 | [diff] [blame] | 298 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 299 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 300 | if (compat) { |
| 301 | if (max == 0) { |
| 302 | if (args == NULL) |
| 303 | return 1; |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 304 | PyErr_Format(PyExc_TypeError, |
| 305 | "%.200s%s takes no arguments", |
| 306 | fname==NULL ? "function" : fname, |
| 307 | fname==NULL ? "" : "()"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 308 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 309 | } |
| 310 | else if (min == 1 && max == 1) { |
| 311 | if (args == NULL) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 312 | PyErr_Format(PyExc_TypeError, |
| 313 | "%.200s%s takes at least one argument", |
| 314 | fname==NULL ? "function" : fname, |
| 315 | fname==NULL ? "" : "()"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 316 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 317 | } |
| 318 | msg = convertitem(args, &format, p_va, flags, levels, |
| 319 | msgbuf, sizeof(msgbuf), &freelist); |
| 320 | if (msg == NULL) |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 321 | return cleanreturn(1, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 322 | seterror(levels[0], msg, levels+1, fname, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 323 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 324 | } |
| 325 | else { |
| 326 | PyErr_SetString(PyExc_SystemError, |
| 327 | "old style getargs format uses new features"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 328 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 329 | } |
| 330 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 331 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 332 | if (!PyTuple_Check(args)) { |
| 333 | PyErr_SetString(PyExc_SystemError, |
| 334 | "new style getargs format but argument is not a tuple"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 335 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 336 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 337 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 338 | len = PyTuple_GET_SIZE(args); |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 339 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 340 | if (len < min || max < len) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 341 | if (message == NULL) |
| 342 | PyErr_Format(PyExc_TypeError, |
| 343 | "%.150s%s takes %s %d argument%s (%ld given)", |
| 344 | fname==NULL ? "function" : fname, |
| 345 | fname==NULL ? "" : "()", |
| 346 | min==max ? "exactly" |
| 347 | : len < min ? "at least" : "at most", |
| 348 | len < min ? min : max, |
| 349 | (len < min ? min : max) == 1 ? "" : "s", |
| 350 | Py_SAFE_DOWNCAST(len, Py_ssize_t, long)); |
| 351 | else |
| 352 | PyErr_SetString(PyExc_TypeError, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 353 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 354 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 355 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 356 | for (i = 0; i < len; i++) { |
| 357 | if (*format == '|') |
| 358 | format++; |
| 359 | msg = convertitem(PyTuple_GET_ITEM(args, i), &format, p_va, |
| 360 | flags, levels, msgbuf, |
| 361 | sizeof(msgbuf), &freelist); |
| 362 | if (msg) { |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 363 | seterror(i+1, msg, levels, fname, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 364 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 365 | } |
| 366 | } |
Guido van Rossum | 231a41e | 1997-12-09 20:36:39 +0000 | [diff] [blame] | 367 | |
Antoine Pitrou | 4de7457 | 2013-02-09 23:11:27 +0100 | [diff] [blame] | 368 | if (*format != '\0' && !Py_ISALPHA(Py_CHARMASK(*format)) && |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 369 | *format != '(' && |
| 370 | *format != '|' && *format != ':' && *format != ';') { |
| 371 | PyErr_Format(PyExc_SystemError, |
| 372 | "bad format string: %.200s", formatsave); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 373 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 374 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 375 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 376 | return cleanreturn(1, &freelist); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | |
| 380 | |
| 381 | static void |
Victor Stinner | 84bb1cf | 2013-05-17 00:12:04 +0200 | [diff] [blame] | 382 | 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] | 383 | const char *message) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 384 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 385 | char buf[512]; |
| 386 | int i; |
| 387 | char *p = buf; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 388 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 389 | if (PyErr_Occurred()) |
| 390 | return; |
| 391 | else if (message == NULL) { |
| 392 | if (fname != NULL) { |
| 393 | PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname); |
| 394 | p += strlen(p); |
| 395 | } |
| 396 | if (iarg != 0) { |
| 397 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
Richard Oudkerk | 25296ce | 2013-05-18 17:35:19 +0100 | [diff] [blame] | 398 | "argument %" PY_FORMAT_SIZE_T "d", iarg); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 399 | i = 0; |
| 400 | p += strlen(p); |
Georg Brandl | 142ad66 | 2013-10-14 07:01:11 +0200 | [diff] [blame] | 401 | while (i < 32 && levels[i] > 0 && (int)(p-buf) < 220) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 402 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
| 403 | ", item %d", levels[i]-1); |
| 404 | p += strlen(p); |
| 405 | i++; |
| 406 | } |
| 407 | } |
| 408 | else { |
| 409 | PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument"); |
| 410 | p += strlen(p); |
| 411 | } |
| 412 | PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg); |
| 413 | message = buf; |
| 414 | } |
Serhiy Storchaka | 4cd63ef | 2016-02-08 01:22:47 +0200 | [diff] [blame] | 415 | if (msg[0] == '(') { |
| 416 | PyErr_SetString(PyExc_SystemError, message); |
| 417 | } |
| 418 | else { |
| 419 | PyErr_SetString(PyExc_TypeError, message); |
| 420 | } |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 421 | } |
| 422 | |
| 423 | |
| 424 | /* Convert a tuple argument. |
| 425 | On entry, *p_format points to the character _after_ the opening '('. |
| 426 | On successful exit, *p_format points to the closing ')'. |
| 427 | If successful: |
| 428 | *p_format and *p_va are updated, |
| 429 | *levels and *msgbuf are untouched, |
| 430 | and NULL is returned. |
| 431 | If the argument is invalid: |
| 432 | *p_format is unchanged, |
| 433 | *p_va is undefined, |
| 434 | *levels is a 0-terminated list of item numbers, |
| 435 | *msgbuf contains an error message, whose format is: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 436 | "must be <typename1>, not <typename2>", where: |
| 437 | <typename1> is the name of the expected type, and |
| 438 | <typename2> is the name of the actual type, |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 439 | and msgbuf is returned. |
| 440 | */ |
| 441 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 442 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 443 | 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] | 444 | int *levels, char *msgbuf, size_t bufsize, int toplevel, |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 445 | freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 446 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 447 | int level = 0; |
| 448 | int n = 0; |
| 449 | const char *format = *p_format; |
| 450 | int i; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 451 | Py_ssize_t len; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 452 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 453 | for (;;) { |
| 454 | int c = *format++; |
| 455 | if (c == '(') { |
| 456 | if (level == 0) |
| 457 | n++; |
| 458 | level++; |
| 459 | } |
| 460 | else if (c == ')') { |
| 461 | if (level == 0) |
| 462 | break; |
| 463 | level--; |
| 464 | } |
| 465 | else if (c == ':' || c == ';' || c == '\0') |
| 466 | break; |
Antoine Pitrou | 4de7457 | 2013-02-09 23:11:27 +0100 | [diff] [blame] | 467 | else if (level == 0 && Py_ISALPHA(Py_CHARMASK(c))) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 468 | n++; |
| 469 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 470 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 471 | if (!PySequence_Check(arg) || PyBytes_Check(arg)) { |
| 472 | levels[0] = 0; |
| 473 | PyOS_snprintf(msgbuf, bufsize, |
| 474 | toplevel ? "expected %d arguments, not %.50s" : |
| 475 | "must be %d-item sequence, not %.50s", |
| 476 | n, |
| 477 | arg == Py_None ? "None" : arg->ob_type->tp_name); |
| 478 | return msgbuf; |
| 479 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 480 | |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 481 | len = PySequence_Size(arg); |
| 482 | if (len != n) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 483 | levels[0] = 0; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 484 | if (toplevel) { |
| 485 | PyOS_snprintf(msgbuf, bufsize, |
| 486 | "expected %d arguments, not %" PY_FORMAT_SIZE_T "d", |
| 487 | n, len); |
| 488 | } |
| 489 | else { |
| 490 | PyOS_snprintf(msgbuf, bufsize, |
| 491 | "must be sequence of length %d, " |
| 492 | "not %" PY_FORMAT_SIZE_T "d", |
| 493 | n, len); |
| 494 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 495 | return msgbuf; |
| 496 | } |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 497 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 498 | format = *p_format; |
| 499 | for (i = 0; i < n; i++) { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 500 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 501 | PyObject *item; |
| 502 | item = PySequence_GetItem(arg, i); |
| 503 | if (item == NULL) { |
| 504 | PyErr_Clear(); |
| 505 | levels[0] = i+1; |
| 506 | levels[1] = 0; |
| 507 | strncpy(msgbuf, "is not retrievable", bufsize); |
| 508 | return msgbuf; |
| 509 | } |
| 510 | msg = convertitem(item, &format, p_va, flags, levels+1, |
| 511 | msgbuf, bufsize, freelist); |
| 512 | /* PySequence_GetItem calls tp->sq_item, which INCREFs */ |
| 513 | Py_XDECREF(item); |
| 514 | if (msg != NULL) { |
| 515 | levels[0] = i+1; |
| 516 | return msg; |
| 517 | } |
| 518 | } |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 519 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 520 | *p_format = format; |
| 521 | return NULL; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | |
| 525 | /* Convert a single item. */ |
| 526 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 527 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 528 | 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] | 529 | int *levels, char *msgbuf, size_t bufsize, freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 530 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 531 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 532 | const char *format = *p_format; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 533 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 534 | if (*format == '(' /* ')' */) { |
| 535 | format++; |
| 536 | msg = converttuple(arg, &format, p_va, flags, levels, msgbuf, |
| 537 | bufsize, 0, freelist); |
| 538 | if (msg == NULL) |
| 539 | format++; |
| 540 | } |
| 541 | else { |
| 542 | msg = convertsimple(arg, &format, p_va, flags, |
| 543 | msgbuf, bufsize, freelist); |
| 544 | if (msg != NULL) |
| 545 | levels[0] = 0; |
| 546 | } |
| 547 | if (msg == NULL) |
| 548 | *p_format = format; |
| 549 | return msg; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 553 | |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 554 | /* Format an error message generated by convertsimple(). */ |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 555 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 556 | static const char * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 557 | converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize) |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 558 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 559 | assert(expected != NULL); |
| 560 | assert(arg != NULL); |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 561 | if (expected[0] == '(') { |
| 562 | PyOS_snprintf(msgbuf, bufsize, |
| 563 | "%.100s", expected); |
| 564 | } |
| 565 | else { |
| 566 | PyOS_snprintf(msgbuf, bufsize, |
| 567 | "must be %.50s, not %.50s", expected, |
| 568 | arg == Py_None ? "None" : arg->ob_type->tp_name); |
| 569 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 570 | return msgbuf; |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 571 | } |
| 572 | |
| 573 | #define CONV_UNICODE "(unicode conversion error)" |
| 574 | |
Guido van Rossum | 45aecf4 | 2006-03-15 04:58:47 +0000 | [diff] [blame] | 575 | /* Explicitly check for float arguments when integers are expected. |
| 576 | Return 1 for error, 0 if ok. */ |
Neil Schemenauer | 5042da6 | 2003-02-04 20:59:40 +0000 | [diff] [blame] | 577 | static int |
| 578 | float_argument_error(PyObject *arg) |
| 579 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 580 | if (PyFloat_Check(arg)) { |
| 581 | PyErr_SetString(PyExc_TypeError, |
| 582 | "integer argument expected, got float" ); |
| 583 | return 1; |
| 584 | } |
| 585 | else |
| 586 | return 0; |
Neil Schemenauer | 5042da6 | 2003-02-04 20:59:40 +0000 | [diff] [blame] | 587 | } |
| 588 | |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 589 | /* Convert a non-tuple argument. Return NULL if conversion went OK, |
| 590 | or a string with a message describing the failure. The message is |
| 591 | formatted as "must be <desired type>, not <actual type>". |
| 592 | When failing, an exception may or may not have been raised. |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 593 | Don't call if a tuple is expected. |
| 594 | |
| 595 | 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] | 596 | */ |
| 597 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 598 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 599 | 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] | 600 | char *msgbuf, size_t bufsize, freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 601 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 602 | /* For # codes */ |
| 603 | #define FETCH_SIZE int *q=NULL;Py_ssize_t *q2=NULL;\ |
| 604 | if (flags & FLAG_SIZE_T) q2=va_arg(*p_va, Py_ssize_t*); \ |
| 605 | else q=va_arg(*p_va, int*); |
Victor Stinner | b3c9e07 | 2011-01-04 02:07:34 +0000 | [diff] [blame] | 606 | #define STORE_SIZE(s) \ |
| 607 | if (flags & FLAG_SIZE_T) \ |
| 608 | *q2=s; \ |
| 609 | else { \ |
| 610 | if (INT_MAX < s) { \ |
| 611 | PyErr_SetString(PyExc_OverflowError, \ |
| 612 | "size does not fit in an int"); \ |
| 613 | return converterr("", arg, msgbuf, bufsize); \ |
| 614 | } \ |
Victor Stinner | 9550ef3 | 2013-06-05 01:18:13 +0200 | [diff] [blame] | 615 | *q = (int)s; \ |
Victor Stinner | b3c9e07 | 2011-01-04 02:07:34 +0000 | [diff] [blame] | 616 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 617 | #define BUFFER_LEN ((flags & FLAG_SIZE_T) ? *q2:*q) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 618 | #define RETURN_ERR_OCCURRED return msgbuf |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 619 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 620 | const char *format = *p_format; |
| 621 | char c = *format++; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 622 | char *sarg; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 623 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 624 | switch (c) { |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 625 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 626 | case 'b': { /* unsigned byte -- very short int */ |
| 627 | char *p = va_arg(*p_va, char *); |
| 628 | long ival; |
| 629 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 630 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 631 | ival = PyLong_AsLong(arg); |
| 632 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 633 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 634 | else if (ival < 0) { |
| 635 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 636 | "unsigned byte integer is less than minimum"); |
| 637 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 638 | } |
| 639 | else if (ival > UCHAR_MAX) { |
| 640 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 641 | "unsigned byte integer is greater than maximum"); |
| 642 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 643 | } |
| 644 | else |
| 645 | *p = (unsigned char) ival; |
| 646 | break; |
| 647 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 648 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 649 | case 'B': {/* byte sized bitfield - both signed and unsigned |
| 650 | values allowed */ |
| 651 | char *p = va_arg(*p_va, char *); |
| 652 | long ival; |
| 653 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 654 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 655 | ival = PyLong_AsUnsignedLongMask(arg); |
| 656 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 657 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 658 | else |
| 659 | *p = (unsigned char) ival; |
| 660 | break; |
| 661 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 662 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 663 | case 'h': {/* signed short int */ |
| 664 | short *p = va_arg(*p_va, short *); |
| 665 | long ival; |
| 666 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 667 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 668 | ival = PyLong_AsLong(arg); |
| 669 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 670 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 671 | else if (ival < SHRT_MIN) { |
| 672 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 673 | "signed short integer is less than minimum"); |
| 674 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 675 | } |
| 676 | else if (ival > SHRT_MAX) { |
| 677 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 678 | "signed short integer is greater than maximum"); |
| 679 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 680 | } |
| 681 | else |
| 682 | *p = (short) ival; |
| 683 | break; |
| 684 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 685 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 686 | case 'H': { /* short int sized bitfield, both signed and |
| 687 | unsigned allowed */ |
| 688 | unsigned short *p = va_arg(*p_va, unsigned short *); |
| 689 | long ival; |
| 690 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 691 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 692 | ival = PyLong_AsUnsignedLongMask(arg); |
| 693 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 694 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 695 | else |
| 696 | *p = (unsigned short) ival; |
| 697 | break; |
| 698 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 699 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 700 | case 'i': {/* signed int */ |
| 701 | int *p = va_arg(*p_va, int *); |
| 702 | long ival; |
| 703 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 704 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 705 | ival = PyLong_AsLong(arg); |
| 706 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 707 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 708 | else if (ival > INT_MAX) { |
| 709 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 710 | "signed integer is greater than maximum"); |
| 711 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 712 | } |
| 713 | else if (ival < INT_MIN) { |
| 714 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 715 | "signed integer is less than minimum"); |
| 716 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 717 | } |
| 718 | else |
| 719 | *p = ival; |
| 720 | break; |
| 721 | } |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 722 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 723 | case 'I': { /* int sized bitfield, both signed and |
| 724 | unsigned allowed */ |
| 725 | unsigned int *p = va_arg(*p_va, unsigned int *); |
| 726 | unsigned int ival; |
| 727 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 728 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 729 | ival = (unsigned int)PyLong_AsUnsignedLongMask(arg); |
| 730 | if (ival == (unsigned int)-1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 731 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 732 | else |
| 733 | *p = ival; |
| 734 | break; |
| 735 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 736 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 737 | case 'n': /* Py_ssize_t */ |
| 738 | { |
| 739 | PyObject *iobj; |
| 740 | Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *); |
| 741 | Py_ssize_t ival = -1; |
| 742 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 743 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 744 | iobj = PyNumber_Index(arg); |
| 745 | if (iobj != NULL) { |
| 746 | ival = PyLong_AsSsize_t(iobj); |
| 747 | Py_DECREF(iobj); |
| 748 | } |
| 749 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 750 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 751 | *p = ival; |
| 752 | break; |
| 753 | } |
| 754 | case 'l': {/* long int */ |
| 755 | long *p = va_arg(*p_va, long *); |
| 756 | long ival; |
| 757 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 758 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 759 | ival = PyLong_AsLong(arg); |
| 760 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 761 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 762 | else |
| 763 | *p = ival; |
| 764 | break; |
| 765 | } |
Thomas Heller | a4ea603 | 2003-04-17 18:55:45 +0000 | [diff] [blame] | 766 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 767 | case 'k': { /* long sized bitfield */ |
| 768 | unsigned long *p = va_arg(*p_va, unsigned long *); |
| 769 | unsigned long ival; |
| 770 | if (PyLong_Check(arg)) |
| 771 | ival = PyLong_AsUnsignedLongMask(arg); |
| 772 | else |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 773 | return converterr("int", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 774 | *p = ival; |
| 775 | break; |
| 776 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 777 | |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 778 | case 'L': {/* long long */ |
| 779 | long long *p = va_arg( *p_va, long long * ); |
| 780 | long long ival; |
Mark Dickinson | c730131 | 2010-06-10 16:05:10 +0000 | [diff] [blame] | 781 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 782 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 783 | ival = PyLong_AsLongLong(arg); |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 784 | if (ival == (long long)-1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 785 | RETURN_ERR_OCCURRED; |
Mark Dickinson | c730131 | 2010-06-10 16:05:10 +0000 | [diff] [blame] | 786 | else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 787 | *p = ival; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 788 | break; |
| 789 | } |
Thomas Heller | a4ea603 | 2003-04-17 18:55:45 +0000 | [diff] [blame] | 790 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 791 | case 'K': { /* long long sized bitfield */ |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 792 | unsigned long long *p = va_arg(*p_va, unsigned long long *); |
| 793 | unsigned long long ival; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 794 | if (PyLong_Check(arg)) |
| 795 | ival = PyLong_AsUnsignedLongLongMask(arg); |
| 796 | else |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 797 | return converterr("int", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 798 | *p = ival; |
| 799 | break; |
| 800 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 801 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 802 | case 'f': {/* float */ |
| 803 | float *p = va_arg(*p_va, float *); |
| 804 | double dval = PyFloat_AsDouble(arg); |
| 805 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 806 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 807 | else |
| 808 | *p = (float) dval; |
| 809 | break; |
| 810 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 811 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 812 | case 'd': {/* double */ |
| 813 | double *p = va_arg(*p_va, double *); |
| 814 | double dval = PyFloat_AsDouble(arg); |
| 815 | if (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 = dval; |
| 819 | break; |
| 820 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 821 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 822 | case 'D': {/* complex double */ |
| 823 | Py_complex *p = va_arg(*p_va, Py_complex *); |
| 824 | Py_complex cval; |
| 825 | cval = PyComplex_AsCComplex(arg); |
| 826 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 827 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 828 | else |
| 829 | *p = cval; |
| 830 | break; |
| 831 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 832 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 833 | case 'c': {/* char */ |
| 834 | char *p = va_arg(*p_va, char *); |
| 835 | if (PyBytes_Check(arg) && PyBytes_Size(arg) == 1) |
| 836 | *p = PyBytes_AS_STRING(arg)[0]; |
Eli Bendersky | 906b88f | 2011-07-29 07:05:08 +0300 | [diff] [blame] | 837 | else if (PyByteArray_Check(arg) && PyByteArray_Size(arg) == 1) |
| 838 | *p = PyByteArray_AS_STRING(arg)[0]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 839 | else |
| 840 | return converterr("a byte string of length 1", arg, msgbuf, bufsize); |
| 841 | break; |
| 842 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 843 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 844 | case 'C': {/* unicode char */ |
| 845 | int *p = va_arg(*p_va, int *); |
Victor Stinner | e1335c7 | 2011-10-04 20:53:03 +0200 | [diff] [blame] | 846 | int kind; |
| 847 | void *data; |
| 848 | |
| 849 | if (!PyUnicode_Check(arg)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 850 | return converterr("a unicode character", arg, msgbuf, bufsize); |
Victor Stinner | e1335c7 | 2011-10-04 20:53:03 +0200 | [diff] [blame] | 851 | |
| 852 | if (PyUnicode_READY(arg)) |
| 853 | RETURN_ERR_OCCURRED; |
| 854 | |
| 855 | if (PyUnicode_GET_LENGTH(arg) != 1) |
| 856 | return converterr("a unicode character", arg, msgbuf, bufsize); |
| 857 | |
| 858 | kind = PyUnicode_KIND(arg); |
| 859 | data = PyUnicode_DATA(arg); |
| 860 | *p = PyUnicode_READ(kind, data, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 861 | break; |
| 862 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 863 | |
Larry Hastings | faf91e7 | 2012-05-05 16:54:29 -0700 | [diff] [blame] | 864 | case 'p': {/* boolean *p*redicate */ |
| 865 | int *p = va_arg(*p_va, int *); |
| 866 | int val = PyObject_IsTrue(arg); |
| 867 | if (val > 0) |
| 868 | *p = 1; |
| 869 | else if (val == 0) |
| 870 | *p = 0; |
| 871 | else |
| 872 | RETURN_ERR_OCCURRED; |
| 873 | break; |
| 874 | } |
| 875 | |
Victor Stinner | 3dcb5ac | 2010-06-08 22:54:19 +0000 | [diff] [blame] | 876 | /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 877 | need to be cleaned up! */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 878 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 879 | case 'y': {/* any bytes-like object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 880 | void **p = (void **)va_arg(*p_va, char **); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 881 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 882 | Py_ssize_t count; |
| 883 | if (*format == '*') { |
| 884 | if (getbuffer(arg, (Py_buffer*)p, &buf) < 0) |
| 885 | return converterr(buf, arg, msgbuf, bufsize); |
| 886 | format++; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 887 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 888 | return converterr( |
| 889 | "(cleanup problem)", |
| 890 | arg, msgbuf, bufsize); |
| 891 | } |
| 892 | break; |
| 893 | } |
| 894 | count = convertbuffer(arg, p, &buf); |
| 895 | if (count < 0) |
| 896 | return converterr(buf, arg, msgbuf, bufsize); |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 897 | if (*format == '#') { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 898 | FETCH_SIZE; |
| 899 | STORE_SIZE(count); |
| 900 | format++; |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 901 | } else { |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 902 | if (strlen(*p) != (size_t)count) { |
| 903 | PyErr_SetString(PyExc_ValueError, "embedded null byte"); |
| 904 | RETURN_ERR_OCCURRED; |
| 905 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 906 | } |
| 907 | break; |
| 908 | } |
Walter Dörwald | 612344f | 2007-05-04 19:28:21 +0000 | [diff] [blame] | 909 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 910 | case 's': /* text string or bytes-like object */ |
| 911 | case 'z': /* text string, bytes-like object or None */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 912 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 913 | if (*format == '*') { |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 914 | /* "s*" or "z*" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 915 | Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 916 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 917 | if (c == 'z' && arg == Py_None) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 918 | PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0); |
| 919 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 920 | Py_ssize_t len; |
| 921 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 922 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 923 | return converterr(CONV_UNICODE, |
| 924 | arg, msgbuf, bufsize); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 925 | PyBuffer_FillInfo(p, arg, sarg, len, 1, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 926 | } |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 927 | else { /* any bytes-like object */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 928 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 929 | if (getbuffer(arg, p, &buf) < 0) |
| 930 | return converterr(buf, arg, msgbuf, bufsize); |
| 931 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 932 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 933 | return converterr( |
| 934 | "(cleanup problem)", |
| 935 | arg, msgbuf, bufsize); |
| 936 | } |
| 937 | format++; |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 938 | } else if (*format == '#') { /* a string or read-only bytes-like object */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 939 | /* "s#" or "z#" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 940 | void **p = (void **)va_arg(*p_va, char **); |
| 941 | FETCH_SIZE; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 942 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 943 | if (c == 'z' && arg == Py_None) { |
| 944 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 945 | STORE_SIZE(0); |
| 946 | } |
| 947 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 948 | Py_ssize_t len; |
| 949 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 950 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 951 | return converterr(CONV_UNICODE, |
| 952 | arg, msgbuf, bufsize); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 953 | *p = sarg; |
| 954 | STORE_SIZE(len); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 955 | } |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 956 | else { /* read-only bytes-like object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 957 | /* XXX Really? */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 958 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 959 | Py_ssize_t count = convertbuffer(arg, p, &buf); |
| 960 | if (count < 0) |
| 961 | return converterr(buf, arg, msgbuf, bufsize); |
| 962 | STORE_SIZE(count); |
| 963 | } |
| 964 | format++; |
| 965 | } else { |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 966 | /* "s" or "z" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 967 | char **p = va_arg(*p_va, char **); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 968 | Py_ssize_t len; |
| 969 | sarg = NULL; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 970 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 971 | if (c == 'z' && arg == Py_None) |
| 972 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 973 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 974 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 975 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 976 | return converterr(CONV_UNICODE, |
| 977 | arg, msgbuf, bufsize); |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 978 | if (strlen(sarg) != (size_t)len) { |
| 979 | PyErr_SetString(PyExc_ValueError, "embedded null character"); |
| 980 | RETURN_ERR_OCCURRED; |
| 981 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 982 | *p = sarg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 983 | } |
| 984 | else |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 985 | return converterr(c == 'z' ? "str or None" : "str", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 986 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 987 | } |
| 988 | break; |
| 989 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 990 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 991 | case 'u': /* raw unicode buffer (Py_UNICODE *) */ |
| 992 | case 'Z': /* raw unicode buffer or None */ |
| 993 | { |
Brett Cannon | b94767f | 2011-02-22 20:15:44 +0000 | [diff] [blame] | 994 | Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **); |
| 995 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 996 | if (*format == '#') { |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 997 | /* "u#" or "Z#" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 998 | FETCH_SIZE; |
Travis E. Oliphant | ddacf96 | 2007-10-13 21:03:27 +0000 | [diff] [blame] | 999 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1000 | if (c == 'Z' && arg == Py_None) { |
| 1001 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1002 | STORE_SIZE(0); |
| 1003 | } |
| 1004 | else if (PyUnicode_Check(arg)) { |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 1005 | Py_ssize_t len; |
| 1006 | *p = PyUnicode_AsUnicodeAndSize(arg, &len); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1007 | if (*p == NULL) |
| 1008 | RETURN_ERR_OCCURRED; |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 1009 | STORE_SIZE(len); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1010 | } |
Victor Stinner | 5216e6d | 2010-06-08 21:45:51 +0000 | [diff] [blame] | 1011 | else |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 1012 | return converterr(c == 'Z' ? "str or None" : "str", |
| 1013 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1014 | format++; |
| 1015 | } else { |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 1016 | /* "u" or "Z" */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1017 | if (c == 'Z' && arg == Py_None) |
| 1018 | *p = NULL; |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 1019 | else if (PyUnicode_Check(arg)) { |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 1020 | Py_ssize_t len; |
| 1021 | *p = PyUnicode_AsUnicodeAndSize(arg, &len); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1022 | if (*p == NULL) |
| 1023 | RETURN_ERR_OCCURRED; |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 1024 | if (Py_UNICODE_strlen(*p) != (size_t)len) { |
| 1025 | PyErr_SetString(PyExc_ValueError, "embedded null character"); |
| 1026 | RETURN_ERR_OCCURRED; |
| 1027 | } |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 1028 | } else |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1029 | return converterr(c == 'Z' ? "str or None" : "str", |
| 1030 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1031 | } |
| 1032 | break; |
| 1033 | } |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1034 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1035 | case 'e': {/* encoded string */ |
| 1036 | char **buffer; |
| 1037 | const char *encoding; |
| 1038 | PyObject *s; |
| 1039 | int recode_strings; |
| 1040 | Py_ssize_t size; |
| 1041 | const char *ptr; |
Jeremy Hylton | 4819e97 | 2001-10-11 14:40:37 +0000 | [diff] [blame] | 1042 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1043 | /* Get 'e' parameter: the encoding name */ |
| 1044 | encoding = (const char *)va_arg(*p_va, const char *); |
| 1045 | if (encoding == NULL) |
| 1046 | encoding = PyUnicode_GetDefaultEncoding(); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1047 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1048 | /* Get output buffer parameter: |
| 1049 | 's' (recode all objects via Unicode) or |
| 1050 | 't' (only recode non-string objects) |
| 1051 | */ |
| 1052 | if (*format == 's') |
| 1053 | recode_strings = 1; |
| 1054 | else if (*format == 't') |
| 1055 | recode_strings = 0; |
| 1056 | else |
| 1057 | return converterr( |
| 1058 | "(unknown parser marker combination)", |
| 1059 | arg, msgbuf, bufsize); |
| 1060 | buffer = (char **)va_arg(*p_va, char **); |
| 1061 | format++; |
| 1062 | if (buffer == NULL) |
| 1063 | return converterr("(buffer is NULL)", |
| 1064 | arg, msgbuf, bufsize); |
Benjamin Peterson | 9edd2bd | 2008-08-27 00:31:37 +0000 | [diff] [blame] | 1065 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1066 | /* Encode object */ |
| 1067 | if (!recode_strings && |
| 1068 | (PyBytes_Check(arg) || PyByteArray_Check(arg))) { |
| 1069 | s = arg; |
| 1070 | Py_INCREF(s); |
| 1071 | if (PyObject_AsCharBuffer(s, &ptr, &size) < 0) |
| 1072 | return converterr("(AsCharBuffer failed)", |
| 1073 | arg, msgbuf, bufsize); |
| 1074 | } |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1075 | else if (PyUnicode_Check(arg)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1076 | /* Encode object; use default error handling */ |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1077 | s = PyUnicode_AsEncodedString(arg, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1078 | encoding, |
| 1079 | NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1080 | if (s == NULL) |
| 1081 | return converterr("(encoding failed)", |
| 1082 | arg, msgbuf, bufsize); |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1083 | assert(PyBytes_Check(s)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1084 | size = PyBytes_GET_SIZE(s); |
| 1085 | ptr = PyBytes_AS_STRING(s); |
| 1086 | if (ptr == NULL) |
| 1087 | ptr = ""; |
| 1088 | } |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame] | 1089 | else { |
| 1090 | return converterr( |
| 1091 | recode_strings ? "str" : "str, bytes or bytearray", |
| 1092 | arg, msgbuf, bufsize); |
| 1093 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1094 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1095 | /* Write output; output is guaranteed to be 0-terminated */ |
| 1096 | if (*format == '#') { |
| 1097 | /* Using buffer length parameter '#': |
| 1098 | |
| 1099 | - if *buffer is NULL, a new buffer of the |
| 1100 | needed size is allocated and the data |
| 1101 | copied into it; *buffer is updated to point |
| 1102 | to the new buffer; the caller is |
| 1103 | responsible for PyMem_Free()ing it after |
| 1104 | usage |
| 1105 | |
| 1106 | - if *buffer is not NULL, the data is |
| 1107 | copied to *buffer; *buffer_len has to be |
| 1108 | set to the size of the buffer on input; |
| 1109 | buffer overflow is signalled with an error; |
| 1110 | buffer has to provide enough room for the |
| 1111 | encoded string plus the trailing 0-byte |
| 1112 | |
| 1113 | - in both cases, *buffer_len is updated to |
| 1114 | the size of the buffer /excluding/ the |
| 1115 | trailing 0-byte |
| 1116 | |
| 1117 | */ |
| 1118 | FETCH_SIZE; |
| 1119 | |
| 1120 | format++; |
| 1121 | if (q == NULL && q2 == NULL) { |
| 1122 | Py_DECREF(s); |
| 1123 | return converterr( |
| 1124 | "(buffer_len is NULL)", |
| 1125 | arg, msgbuf, bufsize); |
| 1126 | } |
| 1127 | if (*buffer == NULL) { |
| 1128 | *buffer = PyMem_NEW(char, size + 1); |
| 1129 | if (*buffer == NULL) { |
| 1130 | Py_DECREF(s); |
Victor Stinner | 2872e5b | 2010-06-06 20:38:02 +0000 | [diff] [blame] | 1131 | PyErr_NoMemory(); |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1132 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1133 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1134 | if (addcleanup(*buffer, freelist, cleanup_ptr)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1135 | Py_DECREF(s); |
| 1136 | return converterr( |
| 1137 | "(cleanup problem)", |
| 1138 | arg, msgbuf, bufsize); |
| 1139 | } |
| 1140 | } else { |
| 1141 | if (size + 1 > BUFFER_LEN) { |
| 1142 | Py_DECREF(s); |
Serhiy Storchaka | 4cd63ef | 2016-02-08 01:22:47 +0200 | [diff] [blame] | 1143 | PyErr_Format(PyExc_ValueError, |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1144 | "encoded string too long " |
| 1145 | "(%zd, maximum length %zd)", |
| 1146 | (Py_ssize_t)size, (Py_ssize_t)(BUFFER_LEN-1)); |
| 1147 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1148 | } |
| 1149 | } |
| 1150 | memcpy(*buffer, ptr, size+1); |
| 1151 | STORE_SIZE(size); |
| 1152 | } else { |
| 1153 | /* Using a 0-terminated buffer: |
| 1154 | |
| 1155 | - the encoded string has to be 0-terminated |
| 1156 | for this variant to work; if it is not, an |
| 1157 | error raised |
| 1158 | |
| 1159 | - a new buffer of the needed size is |
| 1160 | allocated and the data copied into it; |
| 1161 | *buffer is updated to point to the new |
| 1162 | buffer; the caller is responsible for |
| 1163 | PyMem_Free()ing it after usage |
| 1164 | |
| 1165 | */ |
| 1166 | if ((Py_ssize_t)strlen(ptr) != size) { |
| 1167 | Py_DECREF(s); |
| 1168 | return converterr( |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1169 | "encoded string without null bytes", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1170 | arg, msgbuf, bufsize); |
| 1171 | } |
| 1172 | *buffer = PyMem_NEW(char, size + 1); |
| 1173 | if (*buffer == NULL) { |
| 1174 | Py_DECREF(s); |
Victor Stinner | 2872e5b | 2010-06-06 20:38:02 +0000 | [diff] [blame] | 1175 | PyErr_NoMemory(); |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1176 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1177 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1178 | if (addcleanup(*buffer, freelist, cleanup_ptr)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1179 | Py_DECREF(s); |
| 1180 | return converterr("(cleanup problem)", |
| 1181 | arg, msgbuf, bufsize); |
| 1182 | } |
| 1183 | memcpy(*buffer, ptr, size+1); |
| 1184 | } |
| 1185 | Py_DECREF(s); |
| 1186 | break; |
| 1187 | } |
| 1188 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1189 | case 'S': { /* PyBytes object */ |
| 1190 | PyObject **p = va_arg(*p_va, PyObject **); |
| 1191 | if (PyBytes_Check(arg)) |
| 1192 | *p = arg; |
| 1193 | else |
| 1194 | return converterr("bytes", arg, msgbuf, bufsize); |
| 1195 | break; |
| 1196 | } |
| 1197 | |
| 1198 | case 'Y': { /* PyByteArray object */ |
| 1199 | PyObject **p = va_arg(*p_va, PyObject **); |
| 1200 | if (PyByteArray_Check(arg)) |
| 1201 | *p = arg; |
| 1202 | else |
Victor Stinner | 5216e6d | 2010-06-08 21:45:51 +0000 | [diff] [blame] | 1203 | return converterr("bytearray", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1204 | break; |
| 1205 | } |
| 1206 | |
| 1207 | case 'U': { /* PyUnicode object */ |
| 1208 | PyObject **p = va_arg(*p_va, PyObject **); |
Victor Stinner | a1b0c9f | 2012-05-29 12:30:29 +0200 | [diff] [blame] | 1209 | if (PyUnicode_Check(arg)) { |
| 1210 | if (PyUnicode_READY(arg) == -1) |
| 1211 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1212 | *p = arg; |
Victor Stinner | a1b0c9f | 2012-05-29 12:30:29 +0200 | [diff] [blame] | 1213 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1214 | else |
| 1215 | return converterr("str", arg, msgbuf, bufsize); |
| 1216 | break; |
| 1217 | } |
| 1218 | |
| 1219 | case 'O': { /* object */ |
| 1220 | PyTypeObject *type; |
| 1221 | PyObject **p; |
| 1222 | if (*format == '!') { |
| 1223 | type = va_arg(*p_va, PyTypeObject*); |
| 1224 | p = va_arg(*p_va, PyObject **); |
| 1225 | format++; |
| 1226 | if (PyType_IsSubtype(arg->ob_type, type)) |
| 1227 | *p = arg; |
| 1228 | else |
| 1229 | return converterr(type->tp_name, arg, msgbuf, bufsize); |
| 1230 | |
| 1231 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1232 | else if (*format == '&') { |
| 1233 | typedef int (*converter)(PyObject *, void *); |
| 1234 | converter convert = va_arg(*p_va, converter); |
| 1235 | void *addr = va_arg(*p_va, void *); |
| 1236 | int res; |
| 1237 | format++; |
| 1238 | if (! (res = (*convert)(arg, addr))) |
| 1239 | return converterr("(unspecified)", |
| 1240 | arg, msgbuf, bufsize); |
| 1241 | if (res == Py_CLEANUP_SUPPORTED && |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1242 | addcleanup(addr, freelist, convert) == -1) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1243 | return converterr("(cleanup problem)", |
| 1244 | arg, msgbuf, bufsize); |
| 1245 | } |
| 1246 | else { |
| 1247 | p = va_arg(*p_va, PyObject **); |
| 1248 | *p = arg; |
| 1249 | } |
| 1250 | break; |
| 1251 | } |
| 1252 | |
| 1253 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1254 | case 'w': { /* "w*": memory buffer, read-write access */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1255 | void **p = va_arg(*p_va, void **); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1256 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1257 | if (*format != '*') |
| 1258 | return converterr( |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1259 | "(invalid use of 'w' format character)", |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1260 | arg, msgbuf, bufsize); |
| 1261 | format++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1262 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1263 | /* Caller is interested in Py_buffer, and the object |
| 1264 | supports it directly. */ |
| 1265 | if (PyObject_GetBuffer(arg, (Py_buffer*)p, PyBUF_WRITABLE) < 0) { |
| 1266 | PyErr_Clear(); |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1267 | return converterr("read-write bytes-like object", |
| 1268 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1269 | } |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1270 | if (!PyBuffer_IsContiguous((Py_buffer*)p, 'C')) { |
| 1271 | PyBuffer_Release((Py_buffer*)p); |
| 1272 | return converterr("contiguous buffer", arg, msgbuf, bufsize); |
| 1273 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1274 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1275 | return converterr( |
| 1276 | "(cleanup problem)", |
| 1277 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1278 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1279 | break; |
| 1280 | } |
| 1281 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1282 | default: |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1283 | return converterr("(impossible<bad format char>)", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1284 | |
| 1285 | } |
| 1286 | |
| 1287 | *p_format = format; |
| 1288 | return NULL; |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1289 | |
| 1290 | #undef FETCH_SIZE |
| 1291 | #undef STORE_SIZE |
| 1292 | #undef BUFFER_LEN |
| 1293 | #undef RETURN_ERR_OCCURRED |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 1294 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1295 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1296 | static Py_ssize_t |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1297 | convertbuffer(PyObject *arg, void **p, const char **errmsg) |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1298 | { |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1299 | PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1300 | Py_ssize_t count; |
| 1301 | Py_buffer view; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 1302 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1303 | *errmsg = NULL; |
| 1304 | *p = NULL; |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1305 | if (pb != NULL && pb->bf_releasebuffer != NULL) { |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1306 | *errmsg = "read-only bytes-like object"; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1307 | return -1; |
| 1308 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 1309 | |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1310 | if (getbuffer(arg, &view, errmsg) < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1311 | return -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1312 | count = view.len; |
| 1313 | *p = view.buf; |
| 1314 | PyBuffer_Release(&view); |
| 1315 | return count; |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1316 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1317 | |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1318 | static int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1319 | getbuffer(PyObject *arg, Py_buffer *view, const char **errmsg) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1320 | { |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1321 | if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) { |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1322 | *errmsg = "bytes-like object"; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1323 | return -1; |
| 1324 | } |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1325 | if (!PyBuffer_IsContiguous(view, 'C')) { |
Victor Stinner | 21e0948 | 2010-06-24 22:57:10 +0000 | [diff] [blame] | 1326 | PyBuffer_Release(view); |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1327 | *errmsg = "contiguous buffer"; |
| 1328 | return -1; |
| 1329 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1330 | return 0; |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1331 | } |
| 1332 | |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1333 | /* Support for keyword arguments donated by |
| 1334 | Geoff Philbrick <philbric@delphi.hks.com> */ |
| 1335 | |
Tim Peters | f8cd3e8 | 2001-10-27 04:26:57 +0000 | [diff] [blame] | 1336 | /* Return false (0) for error, else true. */ |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 1337 | int |
| 1338 | PyArg_ParseTupleAndKeywords(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1339 | PyObject *keywords, |
| 1340 | const char *format, |
| 1341 | char **kwlist, ...) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1342 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1343 | int retval; |
| 1344 | va_list va; |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1345 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1346 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1347 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1348 | format == NULL || |
| 1349 | kwlist == NULL) |
| 1350 | { |
| 1351 | PyErr_BadInternalCall(); |
| 1352 | return 0; |
| 1353 | } |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1354 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1355 | va_start(va, kwlist); |
| 1356 | retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0); |
| 1357 | va_end(va); |
| 1358 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1359 | } |
| 1360 | |
| 1361 | int |
| 1362 | _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1363 | PyObject *keywords, |
| 1364 | const char *format, |
| 1365 | char **kwlist, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1366 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1367 | int retval; |
| 1368 | va_list va; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1369 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1370 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1371 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1372 | format == NULL || |
| 1373 | kwlist == NULL) |
| 1374 | { |
| 1375 | PyErr_BadInternalCall(); |
| 1376 | return 0; |
| 1377 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1378 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1379 | va_start(va, kwlist); |
| 1380 | retval = vgetargskeywords(args, keywords, format, |
| 1381 | kwlist, &va, FLAG_SIZE_T); |
| 1382 | va_end(va); |
| 1383 | return retval; |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1384 | } |
| 1385 | |
| 1386 | |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1387 | int |
| 1388 | PyArg_VaParseTupleAndKeywords(PyObject *args, |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1389 | PyObject *keywords, |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1390 | const char *format, |
Martin v. Löwis | 15e6274 | 2006-02-27 16:46:16 +0000 | [diff] [blame] | 1391 | char **kwlist, va_list va) |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1392 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1393 | int retval; |
| 1394 | va_list lva; |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1395 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1396 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1397 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1398 | format == NULL || |
| 1399 | kwlist == NULL) |
| 1400 | { |
| 1401 | PyErr_BadInternalCall(); |
| 1402 | return 0; |
| 1403 | } |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1404 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 1405 | Py_VA_COPY(lva, va); |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1406 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1407 | retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0); |
| 1408 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1409 | } |
| 1410 | |
| 1411 | int |
| 1412 | _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1413 | PyObject *keywords, |
| 1414 | const char *format, |
| 1415 | char **kwlist, va_list va) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1416 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1417 | int retval; |
| 1418 | va_list lva; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1419 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1420 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1421 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1422 | format == NULL || |
| 1423 | kwlist == NULL) |
| 1424 | { |
| 1425 | PyErr_BadInternalCall(); |
| 1426 | return 0; |
| 1427 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1428 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 1429 | Py_VA_COPY(lva, va); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1430 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1431 | retval = vgetargskeywords(args, keywords, format, |
| 1432 | kwlist, &lva, FLAG_SIZE_T); |
| 1433 | return retval; |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1434 | } |
| 1435 | |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1436 | int |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1437 | _PyArg_ParseTupleAndKeywordsFast(PyObject *args, PyObject *keywords, |
| 1438 | struct _PyArg_Parser *parser, ...) |
| 1439 | { |
| 1440 | int retval; |
| 1441 | va_list va; |
| 1442 | |
| 1443 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1444 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1445 | parser == NULL) |
| 1446 | { |
| 1447 | PyErr_BadInternalCall(); |
| 1448 | return 0; |
| 1449 | } |
| 1450 | |
| 1451 | va_start(va, parser); |
| 1452 | retval = vgetargskeywordsfast(args, keywords, parser, &va, 0); |
| 1453 | va_end(va); |
| 1454 | return retval; |
| 1455 | } |
| 1456 | |
| 1457 | int |
| 1458 | _PyArg_ParseTupleAndKeywordsFast_SizeT(PyObject *args, PyObject *keywords, |
| 1459 | struct _PyArg_Parser *parser, ...) |
| 1460 | { |
| 1461 | int retval; |
| 1462 | va_list va; |
| 1463 | |
| 1464 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1465 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1466 | parser == NULL) |
| 1467 | { |
| 1468 | PyErr_BadInternalCall(); |
| 1469 | return 0; |
| 1470 | } |
| 1471 | |
| 1472 | va_start(va, parser); |
| 1473 | retval = vgetargskeywordsfast(args, keywords, parser, &va, FLAG_SIZE_T); |
| 1474 | va_end(va); |
| 1475 | return retval; |
| 1476 | } |
| 1477 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1478 | int |
| 1479 | _PyArg_ParseStack(PyObject **args, Py_ssize_t nargs, PyObject *kwnames, |
| 1480 | struct _PyArg_Parser *parser, ...) |
| 1481 | { |
| 1482 | int retval; |
| 1483 | va_list va; |
| 1484 | |
| 1485 | if ((kwnames != NULL && !PyTuple_Check(kwnames)) || |
| 1486 | parser == NULL) |
| 1487 | { |
| 1488 | PyErr_BadInternalCall(); |
| 1489 | return 0; |
| 1490 | } |
| 1491 | |
| 1492 | va_start(va, parser); |
| 1493 | retval = vgetargskeywordsfast_impl(args, nargs, NULL, kwnames, parser, &va, 0); |
| 1494 | va_end(va); |
| 1495 | return retval; |
| 1496 | } |
| 1497 | |
| 1498 | int |
| 1499 | _PyArg_ParseStack_SizeT(PyObject **args, Py_ssize_t nargs, PyObject *kwnames, |
| 1500 | struct _PyArg_Parser *parser, ...) |
| 1501 | { |
| 1502 | int retval; |
| 1503 | va_list va; |
| 1504 | |
| 1505 | if ((kwnames != NULL && !PyTuple_Check(kwnames)) || |
| 1506 | parser == NULL) |
| 1507 | { |
| 1508 | PyErr_BadInternalCall(); |
| 1509 | return 0; |
| 1510 | } |
| 1511 | |
| 1512 | va_start(va, parser); |
| 1513 | retval = vgetargskeywordsfast_impl(args, nargs, NULL, kwnames, parser, &va, FLAG_SIZE_T); |
| 1514 | va_end(va); |
| 1515 | return retval; |
| 1516 | } |
| 1517 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1518 | |
| 1519 | int |
| 1520 | _PyArg_VaParseTupleAndKeywordsFast(PyObject *args, PyObject *keywords, |
| 1521 | struct _PyArg_Parser *parser, va_list va) |
| 1522 | { |
| 1523 | int retval; |
| 1524 | va_list lva; |
| 1525 | |
| 1526 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1527 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1528 | parser == NULL) |
| 1529 | { |
| 1530 | PyErr_BadInternalCall(); |
| 1531 | return 0; |
| 1532 | } |
| 1533 | |
| 1534 | Py_VA_COPY(lva, va); |
| 1535 | |
| 1536 | retval = vgetargskeywordsfast(args, keywords, parser, &lva, 0); |
| 1537 | return retval; |
| 1538 | } |
| 1539 | |
| 1540 | int |
| 1541 | _PyArg_VaParseTupleAndKeywordsFast_SizeT(PyObject *args, PyObject *keywords, |
| 1542 | struct _PyArg_Parser *parser, va_list va) |
| 1543 | { |
| 1544 | int retval; |
| 1545 | va_list lva; |
| 1546 | |
| 1547 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1548 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1549 | parser == NULL) |
| 1550 | { |
| 1551 | PyErr_BadInternalCall(); |
| 1552 | return 0; |
| 1553 | } |
| 1554 | |
| 1555 | Py_VA_COPY(lva, va); |
| 1556 | |
| 1557 | retval = vgetargskeywordsfast(args, keywords, parser, &lva, FLAG_SIZE_T); |
| 1558 | return retval; |
| 1559 | } |
| 1560 | |
| 1561 | int |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1562 | PyArg_ValidateKeywordArguments(PyObject *kwargs) |
| 1563 | { |
Benjamin Peterson | f609654 | 2010-11-17 22:33:12 +0000 | [diff] [blame] | 1564 | if (!PyDict_Check(kwargs)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1565 | PyErr_BadInternalCall(); |
| 1566 | return 0; |
| 1567 | } |
| 1568 | if (!_PyDict_HasOnlyStringKeys(kwargs)) { |
| 1569 | PyErr_SetString(PyExc_TypeError, |
| 1570 | "keyword arguments must be strings"); |
| 1571 | return 0; |
| 1572 | } |
| 1573 | return 1; |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1574 | } |
| 1575 | |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1576 | #define IS_END_OF_FORMAT(c) (c == '\0' || c == ';' || c == ':') |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1577 | |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1578 | static int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1579 | vgetargskeywords(PyObject *args, PyObject *keywords, const char *format, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1580 | char **kwlist, va_list *p_va, int flags) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1581 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1582 | char msgbuf[512]; |
| 1583 | int levels[32]; |
| 1584 | const char *fname, *msg, *custom_msg, *keyword; |
| 1585 | int min = INT_MAX; |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1586 | int max = INT_MAX; |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1587 | int i, pos, len; |
| 1588 | int skip = 0; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 1589 | Py_ssize_t nargs, nkeywords; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1590 | PyObject *current_arg; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1591 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
Benjamin Peterson | 40be9e5 | 2014-02-11 10:09:27 -0500 | [diff] [blame] | 1592 | freelist_t freelist; |
| 1593 | |
| 1594 | freelist.entries = static_entries; |
| 1595 | freelist.first_available = 0; |
| 1596 | freelist.entries_malloced = 0; |
Tim Peters | f4331c1 | 2001-10-27 00:17:34 +0000 | [diff] [blame] | 1597 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1598 | assert(args != NULL && PyTuple_Check(args)); |
| 1599 | assert(keywords == NULL || PyDict_Check(keywords)); |
| 1600 | assert(format != NULL); |
| 1601 | assert(kwlist != NULL); |
| 1602 | assert(p_va != NULL); |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1603 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1604 | /* grab the function name or custom error msg first (mutually exclusive) */ |
| 1605 | fname = strchr(format, ':'); |
| 1606 | if (fname) { |
| 1607 | fname++; |
| 1608 | custom_msg = NULL; |
| 1609 | } |
| 1610 | else { |
| 1611 | custom_msg = strchr(format,';'); |
| 1612 | if (custom_msg) |
| 1613 | custom_msg++; |
| 1614 | } |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1615 | |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1616 | /* scan kwlist and count the number of positional-only parameters */ |
| 1617 | for (pos = 0; kwlist[pos] && !*kwlist[pos]; pos++) { |
| 1618 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1619 | /* scan kwlist and get greatest possible nbr of args */ |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1620 | for (len = pos; kwlist[len]; len++) { |
| 1621 | if (!*kwlist[len]) { |
| 1622 | PyErr_SetString(PyExc_SystemError, |
| 1623 | "Empty keyword parameter name"); |
| 1624 | return cleanreturn(0, &freelist); |
| 1625 | } |
| 1626 | } |
Tim Peters | f8cd3e8 | 2001-10-27 04:26:57 +0000 | [diff] [blame] | 1627 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1628 | if (len > STATIC_FREELIST_ENTRIES) { |
| 1629 | freelist.entries = PyMem_NEW(freelistentry_t, len); |
| 1630 | if (freelist.entries == NULL) { |
| 1631 | PyErr_NoMemory(); |
| 1632 | return 0; |
| 1633 | } |
| 1634 | freelist.entries_malloced = 1; |
Benjamin Peterson | 7ed6727 | 2012-03-16 12:21:02 -0500 | [diff] [blame] | 1635 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1636 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1637 | nargs = PyTuple_GET_SIZE(args); |
| 1638 | nkeywords = (keywords == NULL) ? 0 : PyDict_Size(keywords); |
| 1639 | if (nargs + nkeywords > len) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 1640 | PyErr_Format(PyExc_TypeError, |
Victor Stinner | cb29ec5 | 2013-11-18 02:05:31 +0100 | [diff] [blame] | 1641 | "%s%s takes at most %d argument%s (%zd given)", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1642 | (fname == NULL) ? "function" : fname, |
| 1643 | (fname == NULL) ? "" : "()", |
| 1644 | len, |
| 1645 | (len == 1) ? "" : "s", |
| 1646 | nargs + nkeywords); |
Benjamin Peterson | 01feaec | 2012-03-16 13:25:58 -0500 | [diff] [blame] | 1647 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1648 | } |
Tim Peters | c2f0112 | 2001-10-27 07:25:06 +0000 | [diff] [blame] | 1649 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1650 | /* convert tuple args and keyword args in same loop, using kwlist to drive process */ |
| 1651 | for (i = 0; i < len; i++) { |
| 1652 | keyword = kwlist[i]; |
| 1653 | if (*format == '|') { |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1654 | if (min != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1655 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1656 | "Invalid format string (| specified twice)"); |
| 1657 | return cleanreturn(0, &freelist); |
| 1658 | } |
| 1659 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1660 | min = i; |
| 1661 | format++; |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1662 | |
| 1663 | if (max != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1664 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1665 | "Invalid format string ($ before |)"); |
| 1666 | return cleanreturn(0, &freelist); |
| 1667 | } |
| 1668 | } |
| 1669 | if (*format == '$') { |
| 1670 | if (max != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1671 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1672 | "Invalid format string ($ specified twice)"); |
| 1673 | return cleanreturn(0, &freelist); |
| 1674 | } |
| 1675 | |
| 1676 | max = i; |
| 1677 | format++; |
| 1678 | |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1679 | if (max < pos) { |
| 1680 | PyErr_SetString(PyExc_SystemError, |
| 1681 | "Empty parameter name after $"); |
| 1682 | return cleanreturn(0, &freelist); |
| 1683 | } |
| 1684 | if (skip) { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1685 | /* Now we know the minimal and the maximal numbers of |
| 1686 | * positional arguments and can raise an exception with |
| 1687 | * informative message (see below). */ |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1688 | break; |
| 1689 | } |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1690 | if (max < nargs) { |
| 1691 | PyErr_Format(PyExc_TypeError, |
| 1692 | "Function takes %s %d positional arguments" |
| 1693 | " (%d given)", |
| 1694 | (min != INT_MAX) ? "at most" : "exactly", |
| 1695 | max, nargs); |
| 1696 | return cleanreturn(0, &freelist); |
| 1697 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1698 | } |
| 1699 | if (IS_END_OF_FORMAT(*format)) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1700 | PyErr_Format(PyExc_SystemError, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1701 | "More keyword list entries (%d) than " |
| 1702 | "format specifiers (%d)", len, i); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1703 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1704 | } |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1705 | if (!skip) { |
| 1706 | current_arg = NULL; |
| 1707 | if (nkeywords && i >= pos) { |
| 1708 | current_arg = PyDict_GetItemString(keywords, keyword); |
| 1709 | if (!current_arg && PyErr_Occurred()) { |
| 1710 | return cleanreturn(0, &freelist); |
| 1711 | } |
| 1712 | } |
| 1713 | if (current_arg) { |
| 1714 | --nkeywords; |
| 1715 | if (i < nargs) { |
| 1716 | /* arg present in tuple and in dict */ |
| 1717 | PyErr_Format(PyExc_TypeError, |
| 1718 | "Argument given by name ('%s') " |
| 1719 | "and position (%d)", |
| 1720 | keyword, i+1); |
| 1721 | return cleanreturn(0, &freelist); |
| 1722 | } |
| 1723 | } |
| 1724 | else if (i < nargs) |
| 1725 | current_arg = PyTuple_GET_ITEM(args, i); |
| 1726 | |
| 1727 | if (current_arg) { |
| 1728 | msg = convertitem(current_arg, &format, p_va, flags, |
| 1729 | levels, msgbuf, sizeof(msgbuf), &freelist); |
| 1730 | if (msg) { |
| 1731 | seterror(i+1, msg, levels, fname, custom_msg); |
| 1732 | return cleanreturn(0, &freelist); |
| 1733 | } |
| 1734 | continue; |
| 1735 | } |
| 1736 | |
| 1737 | if (i < min) { |
| 1738 | if (i < pos) { |
| 1739 | assert (min == INT_MAX); |
| 1740 | assert (max == INT_MAX); |
| 1741 | skip = 1; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1742 | /* At that moment we still don't know the minimal and |
| 1743 | * the maximal numbers of positional arguments. Raising |
| 1744 | * an exception is deferred until we encounter | and $ |
| 1745 | * or the end of the format. */ |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1746 | } |
| 1747 | else { |
| 1748 | PyErr_Format(PyExc_TypeError, "Required argument " |
| 1749 | "'%s' (pos %d) not found", |
| 1750 | keyword, i+1); |
| 1751 | return cleanreturn(0, &freelist); |
| 1752 | } |
| 1753 | } |
| 1754 | /* current code reports success when all required args |
| 1755 | * fulfilled and no keyword args left, with no further |
| 1756 | * validation. XXX Maybe skip this in debug build ? |
| 1757 | */ |
| 1758 | if (!nkeywords && !skip) { |
| 1759 | return cleanreturn(1, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1760 | } |
| 1761 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1762 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1763 | /* We are into optional args, skip thru to any remaining |
| 1764 | * keyword args */ |
| 1765 | msg = skipitem(&format, p_va, flags); |
| 1766 | if (msg) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1767 | PyErr_Format(PyExc_SystemError, "%s: '%s'", msg, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1768 | format); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1769 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1770 | } |
| 1771 | } |
Tim Peters | b054be4 | 2001-10-27 05:07:41 +0000 | [diff] [blame] | 1772 | |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1773 | if (skip) { |
| 1774 | PyErr_Format(PyExc_TypeError, |
| 1775 | "Function takes %s %d positional arguments" |
| 1776 | " (%d given)", |
| 1777 | (Py_MIN(pos, min) < i) ? "at least" : "exactly", |
| 1778 | Py_MIN(pos, min), nargs); |
| 1779 | return cleanreturn(0, &freelist); |
| 1780 | } |
| 1781 | |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1782 | if (!IS_END_OF_FORMAT(*format) && (*format != '|') && (*format != '$')) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1783 | PyErr_Format(PyExc_SystemError, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1784 | "more argument specifiers than keyword list entries " |
| 1785 | "(remaining format:'%s')", format); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1786 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1787 | } |
Tim Peters | c2f0112 | 2001-10-27 07:25:06 +0000 | [diff] [blame] | 1788 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1789 | /* make sure there are no extraneous keyword arguments */ |
| 1790 | if (nkeywords > 0) { |
| 1791 | PyObject *key, *value; |
| 1792 | Py_ssize_t pos = 0; |
| 1793 | while (PyDict_Next(keywords, &pos, &key, &value)) { |
| 1794 | int match = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1795 | if (!PyUnicode_Check(key)) { |
| 1796 | PyErr_SetString(PyExc_TypeError, |
| 1797 | "keywords must be strings"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1798 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1799 | } |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1800 | for (i = 0; i < len; i++) { |
Serhiy Storchaka | f41b82f | 2016-06-09 16:30:29 +0300 | [diff] [blame] | 1801 | if (*kwlist[i] && !PyUnicode_CompareWithASCIIString(key, kwlist[i])) { |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1802 | match = 1; |
| 1803 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1804 | } |
| 1805 | } |
| 1806 | if (!match) { |
| 1807 | PyErr_Format(PyExc_TypeError, |
Victor Stinner | 93b5513 | 2010-05-19 00:54:06 +0000 | [diff] [blame] | 1808 | "'%U' is an invalid keyword " |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1809 | "argument for this function", |
Victor Stinner | 93b5513 | 2010-05-19 00:54:06 +0000 | [diff] [blame] | 1810 | key); |
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 | } |
| 1813 | } |
| 1814 | } |
| 1815 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1816 | return cleanreturn(1, &freelist); |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1817 | } |
| 1818 | |
| 1819 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1820 | /* List of static parsers. */ |
| 1821 | static struct _PyArg_Parser *static_arg_parsers = NULL; |
| 1822 | |
| 1823 | static int |
| 1824 | parser_init(struct _PyArg_Parser *parser) |
| 1825 | { |
| 1826 | const char * const *keywords; |
| 1827 | const char *format, *msg; |
| 1828 | int i, len, min, max, nkw; |
| 1829 | PyObject *kwtuple; |
| 1830 | |
| 1831 | assert(parser->format != NULL); |
| 1832 | assert(parser->keywords != NULL); |
| 1833 | if (parser->kwtuple != NULL) { |
| 1834 | return 1; |
| 1835 | } |
| 1836 | |
| 1837 | /* grab the function name or custom error msg first (mutually exclusive) */ |
| 1838 | parser->fname = strchr(parser->format, ':'); |
| 1839 | if (parser->fname) { |
| 1840 | parser->fname++; |
| 1841 | parser->custom_msg = NULL; |
| 1842 | } |
| 1843 | else { |
| 1844 | parser->custom_msg = strchr(parser->format,';'); |
| 1845 | if (parser->custom_msg) |
| 1846 | parser->custom_msg++; |
| 1847 | } |
| 1848 | |
| 1849 | keywords = parser->keywords; |
| 1850 | /* scan keywords and count the number of positional-only parameters */ |
| 1851 | for (i = 0; keywords[i] && !*keywords[i]; i++) { |
| 1852 | } |
| 1853 | parser->pos = i; |
| 1854 | /* scan keywords and get greatest possible nbr of args */ |
| 1855 | for (; keywords[i]; i++) { |
| 1856 | if (!*keywords[i]) { |
| 1857 | PyErr_SetString(PyExc_SystemError, |
| 1858 | "Empty keyword parameter name"); |
| 1859 | return 0; |
| 1860 | } |
| 1861 | } |
| 1862 | len = i; |
| 1863 | |
| 1864 | min = max = INT_MAX; |
| 1865 | format = parser->format; |
| 1866 | for (i = 0; i < len; i++) { |
| 1867 | if (*format == '|') { |
| 1868 | if (min != INT_MAX) { |
| 1869 | PyErr_SetString(PyExc_SystemError, |
| 1870 | "Invalid format string (| specified twice)"); |
| 1871 | return 0; |
| 1872 | } |
| 1873 | if (max != INT_MAX) { |
| 1874 | PyErr_SetString(PyExc_SystemError, |
| 1875 | "Invalid format string ($ before |)"); |
| 1876 | return 0; |
| 1877 | } |
| 1878 | min = i; |
| 1879 | format++; |
| 1880 | } |
| 1881 | if (*format == '$') { |
| 1882 | if (max != INT_MAX) { |
| 1883 | PyErr_SetString(PyExc_SystemError, |
| 1884 | "Invalid format string ($ specified twice)"); |
| 1885 | return 0; |
| 1886 | } |
| 1887 | if (i < parser->pos) { |
| 1888 | PyErr_SetString(PyExc_SystemError, |
| 1889 | "Empty parameter name after $"); |
| 1890 | return 0; |
| 1891 | } |
| 1892 | max = i; |
| 1893 | format++; |
| 1894 | } |
| 1895 | if (IS_END_OF_FORMAT(*format)) { |
| 1896 | PyErr_Format(PyExc_SystemError, |
| 1897 | "More keyword list entries (%d) than " |
| 1898 | "format specifiers (%d)", len, i); |
| 1899 | return 0; |
| 1900 | } |
| 1901 | |
| 1902 | msg = skipitem(&format, NULL, 0); |
| 1903 | if (msg) { |
| 1904 | PyErr_Format(PyExc_SystemError, "%s: '%s'", msg, |
| 1905 | format); |
| 1906 | return 0; |
| 1907 | } |
| 1908 | } |
| 1909 | parser->min = Py_MIN(min, len); |
| 1910 | parser->max = Py_MIN(max, len); |
| 1911 | |
| 1912 | if (!IS_END_OF_FORMAT(*format) && (*format != '|') && (*format != '$')) { |
| 1913 | PyErr_Format(PyExc_SystemError, |
| 1914 | "more argument specifiers than keyword list entries " |
| 1915 | "(remaining format:'%s')", format); |
| 1916 | return 0; |
| 1917 | } |
| 1918 | |
| 1919 | nkw = len - parser->pos; |
| 1920 | kwtuple = PyTuple_New(nkw); |
| 1921 | if (kwtuple == NULL) { |
| 1922 | return 0; |
| 1923 | } |
| 1924 | keywords = parser->keywords + parser->pos; |
| 1925 | for (i = 0; i < nkw; i++) { |
| 1926 | PyObject *str = PyUnicode_FromString(keywords[i]); |
| 1927 | if (str == NULL) { |
| 1928 | Py_DECREF(kwtuple); |
| 1929 | return 0; |
| 1930 | } |
| 1931 | PyUnicode_InternInPlace(&str); |
| 1932 | PyTuple_SET_ITEM(kwtuple, i, str); |
| 1933 | } |
| 1934 | parser->kwtuple = kwtuple; |
| 1935 | |
| 1936 | assert(parser->next == NULL); |
| 1937 | parser->next = static_arg_parsers; |
| 1938 | static_arg_parsers = parser; |
| 1939 | return 1; |
| 1940 | } |
| 1941 | |
| 1942 | static void |
| 1943 | parser_clear(struct _PyArg_Parser *parser) |
| 1944 | { |
| 1945 | Py_CLEAR(parser->kwtuple); |
| 1946 | } |
| 1947 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1948 | static PyObject* |
| 1949 | find_keyword(PyObject *kwnames, PyObject **kwstack, PyObject *key) |
| 1950 | { |
| 1951 | Py_ssize_t i, nkwargs; |
| 1952 | |
| 1953 | nkwargs = PyTuple_GET_SIZE(kwnames); |
| 1954 | for (i=0; i < nkwargs; i++) { |
| 1955 | PyObject *kwname = PyTuple_GET_ITEM(kwnames, i); |
| 1956 | |
| 1957 | /* ptr==ptr should match in most cases since keyword keys |
| 1958 | should be interned strings */ |
| 1959 | if (kwname == key) { |
| 1960 | return kwstack[i]; |
| 1961 | } |
| 1962 | if (!PyUnicode_Check(kwname)) { |
| 1963 | /* ignore non-string keyword keys: |
| 1964 | an error will be raised above */ |
| 1965 | continue; |
| 1966 | } |
| 1967 | if (_PyUnicode_EQ(kwname, key)) { |
| 1968 | return kwstack[i]; |
| 1969 | } |
| 1970 | } |
| 1971 | return NULL; |
| 1972 | } |
| 1973 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1974 | static int |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1975 | vgetargskeywordsfast_impl(PyObject **args, Py_ssize_t nargs, |
| 1976 | PyObject *keywords, PyObject *kwnames, |
| 1977 | struct _PyArg_Parser *parser, |
| 1978 | va_list *p_va, int flags) |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1979 | { |
| 1980 | PyObject *kwtuple; |
| 1981 | char msgbuf[512]; |
| 1982 | int levels[32]; |
| 1983 | const char *format; |
| 1984 | const char *msg; |
| 1985 | PyObject *keyword; |
| 1986 | int i, pos, len; |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1987 | Py_ssize_t nkeywords; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1988 | PyObject *current_arg; |
| 1989 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
| 1990 | freelist_t freelist; |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1991 | PyObject **kwstack = NULL; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1992 | |
| 1993 | freelist.entries = static_entries; |
| 1994 | freelist.first_available = 0; |
| 1995 | freelist.entries_malloced = 0; |
| 1996 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 1997 | assert(keywords == NULL || PyDict_Check(keywords)); |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 1998 | assert(kwnames == NULL || PyTuple_Check(kwnames)); |
| 1999 | assert((keywords != NULL || kwnames != NULL) |
| 2000 | || (keywords == NULL && kwnames == NULL)); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2001 | assert(parser != NULL); |
| 2002 | assert(p_va != NULL); |
| 2003 | |
| 2004 | if (!parser_init(parser)) { |
| 2005 | return 0; |
| 2006 | } |
| 2007 | |
| 2008 | kwtuple = parser->kwtuple; |
| 2009 | pos = parser->pos; |
| 2010 | len = pos + PyTuple_GET_SIZE(kwtuple); |
| 2011 | |
| 2012 | if (len > STATIC_FREELIST_ENTRIES) { |
| 2013 | freelist.entries = PyMem_NEW(freelistentry_t, len); |
| 2014 | if (freelist.entries == NULL) { |
| 2015 | PyErr_NoMemory(); |
| 2016 | return 0; |
| 2017 | } |
| 2018 | freelist.entries_malloced = 1; |
| 2019 | } |
| 2020 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2021 | if (keywords != NULL) { |
| 2022 | nkeywords = PyDict_Size(keywords); |
| 2023 | } |
| 2024 | else if (kwnames != NULL) { |
| 2025 | nkeywords = PyTuple_GET_SIZE(kwnames); |
| 2026 | kwstack = args + nargs; |
| 2027 | } |
| 2028 | else { |
| 2029 | nkeywords = 0; |
| 2030 | } |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2031 | if (nargs + nkeywords > len) { |
| 2032 | PyErr_Format(PyExc_TypeError, |
| 2033 | "%s%s takes at most %d argument%s (%zd given)", |
| 2034 | (parser->fname == NULL) ? "function" : parser->fname, |
| 2035 | (parser->fname == NULL) ? "" : "()", |
| 2036 | len, |
| 2037 | (len == 1) ? "" : "s", |
| 2038 | nargs + nkeywords); |
| 2039 | return cleanreturn(0, &freelist); |
| 2040 | } |
| 2041 | if (parser->max < nargs) { |
| 2042 | PyErr_Format(PyExc_TypeError, |
| 2043 | "Function takes %s %d positional arguments (%d given)", |
| 2044 | (parser->min != INT_MAX) ? "at most" : "exactly", |
| 2045 | parser->max, nargs); |
| 2046 | return cleanreturn(0, &freelist); |
| 2047 | } |
| 2048 | |
| 2049 | format = parser->format; |
| 2050 | /* convert tuple args and keyword args in same loop, using kwtuple to drive process */ |
| 2051 | for (i = 0; i < len; i++) { |
| 2052 | keyword = (i >= pos) ? PyTuple_GET_ITEM(kwtuple, i - pos) : NULL; |
| 2053 | if (*format == '|') { |
| 2054 | format++; |
| 2055 | } |
| 2056 | if (*format == '$') { |
| 2057 | format++; |
| 2058 | } |
| 2059 | assert(!IS_END_OF_FORMAT(*format)); |
| 2060 | |
| 2061 | current_arg = NULL; |
| 2062 | if (nkeywords && i >= pos) { |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2063 | if (keywords != NULL) { |
| 2064 | current_arg = PyDict_GetItem(keywords, keyword); |
| 2065 | if (!current_arg && PyErr_Occurred()) { |
| 2066 | return cleanreturn(0, &freelist); |
| 2067 | } |
| 2068 | } |
| 2069 | else { |
| 2070 | current_arg = find_keyword(kwnames, kwstack, keyword); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2071 | } |
| 2072 | } |
| 2073 | if (current_arg) { |
| 2074 | --nkeywords; |
| 2075 | if (i < nargs) { |
| 2076 | /* arg present in tuple and in dict */ |
| 2077 | PyErr_Format(PyExc_TypeError, |
| 2078 | "Argument given by name ('%U') " |
| 2079 | "and position (%d)", |
| 2080 | keyword, i+1); |
| 2081 | return cleanreturn(0, &freelist); |
| 2082 | } |
| 2083 | } |
Victor Stinner | a9efb2f | 2016-09-09 17:40:22 -0700 | [diff] [blame] | 2084 | else if (i < nargs) { |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2085 | current_arg = args[i]; |
Victor Stinner | a9efb2f | 2016-09-09 17:40:22 -0700 | [diff] [blame] | 2086 | } |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2087 | |
| 2088 | if (current_arg) { |
| 2089 | msg = convertitem(current_arg, &format, p_va, flags, |
| 2090 | levels, msgbuf, sizeof(msgbuf), &freelist); |
| 2091 | if (msg) { |
| 2092 | seterror(i+1, msg, levels, parser->fname, parser->custom_msg); |
| 2093 | return cleanreturn(0, &freelist); |
| 2094 | } |
| 2095 | continue; |
| 2096 | } |
| 2097 | |
| 2098 | if (i < parser->min) { |
| 2099 | /* Less arguments than required */ |
| 2100 | if (i < pos) { |
| 2101 | PyErr_Format(PyExc_TypeError, |
| 2102 | "Function takes %s %d positional arguments" |
| 2103 | " (%d given)", |
| 2104 | (Py_MIN(pos, parser->min) < parser->max) ? "at least" : "exactly", |
| 2105 | Py_MIN(pos, parser->min), nargs); |
| 2106 | } |
| 2107 | else { |
| 2108 | PyErr_Format(PyExc_TypeError, "Required argument " |
| 2109 | "'%U' (pos %d) not found", |
| 2110 | keyword, i+1); |
| 2111 | } |
| 2112 | return cleanreturn(0, &freelist); |
| 2113 | } |
| 2114 | /* current code reports success when all required args |
| 2115 | * fulfilled and no keyword args left, with no further |
| 2116 | * validation. XXX Maybe skip this in debug build ? |
| 2117 | */ |
| 2118 | if (!nkeywords) { |
| 2119 | return cleanreturn(1, &freelist); |
| 2120 | } |
| 2121 | |
| 2122 | /* We are into optional args, skip thru to any remaining |
| 2123 | * keyword args */ |
| 2124 | msg = skipitem(&format, p_va, flags); |
| 2125 | assert(msg == NULL); |
| 2126 | } |
| 2127 | |
| 2128 | assert(IS_END_OF_FORMAT(*format) || (*format == '|') || (*format == '$')); |
| 2129 | |
| 2130 | /* make sure there are no extraneous keyword arguments */ |
| 2131 | if (nkeywords > 0) { |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2132 | if (keywords != NULL) { |
| 2133 | PyObject *key, *value; |
| 2134 | Py_ssize_t pos = 0; |
| 2135 | while (PyDict_Next(keywords, &pos, &key, &value)) { |
| 2136 | int match; |
| 2137 | if (!PyUnicode_Check(key)) { |
| 2138 | PyErr_SetString(PyExc_TypeError, |
| 2139 | "keywords must be strings"); |
| 2140 | return cleanreturn(0, &freelist); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2141 | } |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2142 | match = PySequence_Contains(kwtuple, key); |
| 2143 | if (match <= 0) { |
| 2144 | if (!match) { |
| 2145 | PyErr_Format(PyExc_TypeError, |
| 2146 | "'%U' is an invalid keyword " |
| 2147 | "argument for this function", |
| 2148 | key); |
| 2149 | } |
| 2150 | return cleanreturn(0, &freelist); |
| 2151 | } |
| 2152 | } |
| 2153 | } |
| 2154 | else { |
| 2155 | Py_ssize_t j, nkwargs; |
| 2156 | |
| 2157 | nkwargs = PyTuple_GET_SIZE(kwnames); |
| 2158 | for (j=0; j < nkwargs; j++) { |
| 2159 | PyObject *key = PyTuple_GET_ITEM(kwnames, j); |
| 2160 | int match; |
| 2161 | |
| 2162 | if (!PyUnicode_Check(key)) { |
| 2163 | PyErr_SetString(PyExc_TypeError, |
| 2164 | "keywords must be strings"); |
| 2165 | return cleanreturn(0, &freelist); |
| 2166 | } |
| 2167 | |
| 2168 | match = PySequence_Contains(kwtuple, key); |
| 2169 | if (match <= 0) { |
| 2170 | if (!match) { |
| 2171 | PyErr_Format(PyExc_TypeError, |
| 2172 | "'%U' is an invalid keyword " |
| 2173 | "argument for this function", |
| 2174 | key); |
| 2175 | } |
| 2176 | return cleanreturn(0, &freelist); |
| 2177 | } |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2178 | } |
| 2179 | } |
| 2180 | } |
| 2181 | |
| 2182 | return cleanreturn(1, &freelist); |
| 2183 | } |
| 2184 | |
Victor Stinner | f0ccbbb | 2016-09-09 17:40:38 -0700 | [diff] [blame] | 2185 | static int |
| 2186 | vgetargskeywordsfast(PyObject *args, PyObject *keywords, |
| 2187 | struct _PyArg_Parser *parser, va_list *p_va, int flags) |
| 2188 | { |
| 2189 | PyObject **stack; |
| 2190 | Py_ssize_t nargs; |
| 2191 | |
| 2192 | assert(args != NULL && PyTuple_Check(args)); |
| 2193 | |
| 2194 | stack = &PyTuple_GET_ITEM(args, 0); |
| 2195 | nargs = PyTuple_GET_SIZE(args); |
| 2196 | return vgetargskeywordsfast_impl(stack, nargs, keywords, NULL, |
| 2197 | parser, p_va, flags); |
| 2198 | } |
| 2199 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2200 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 2201 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 2202 | skipitem(const char **p_format, va_list *p_va, int flags) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 2203 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2204 | const char *format = *p_format; |
| 2205 | char c = *format++; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2206 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2207 | switch (c) { |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2208 | |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 2209 | /* |
| 2210 | * codes that take a single data pointer as an argument |
| 2211 | * (the type of the pointer is irrelevant) |
| 2212 | */ |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2213 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2214 | case 'b': /* byte -- very short int */ |
| 2215 | case 'B': /* byte as bitfield */ |
| 2216 | case 'h': /* short int */ |
| 2217 | case 'H': /* short int as bitfield */ |
| 2218 | case 'i': /* int */ |
| 2219 | case 'I': /* int sized bitfield */ |
| 2220 | case 'l': /* long int */ |
| 2221 | case 'k': /* long int sized bitfield */ |
Benjamin Peterson | af580df | 2016-09-06 10:46:49 -0700 | [diff] [blame] | 2222 | case 'L': /* long long */ |
| 2223 | case 'K': /* long long sized bitfield */ |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 2224 | case 'n': /* Py_ssize_t */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2225 | case 'f': /* float */ |
| 2226 | case 'd': /* double */ |
| 2227 | case 'D': /* complex double */ |
| 2228 | case 'c': /* char */ |
| 2229 | case 'C': /* unicode char */ |
Larry Hastings | 10ba07a | 2012-05-07 02:44:50 -0700 | [diff] [blame] | 2230 | case 'p': /* boolean predicate */ |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 2231 | case 'S': /* string object */ |
| 2232 | case 'Y': /* string object */ |
| 2233 | case 'U': /* unicode string object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2234 | { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2235 | if (p_va != NULL) { |
| 2236 | (void) va_arg(*p_va, void *); |
| 2237 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2238 | break; |
| 2239 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 2240 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2241 | /* string codes */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2242 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2243 | case 'e': /* string with encoding */ |
| 2244 | { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2245 | if (p_va != NULL) { |
| 2246 | (void) va_arg(*p_va, const char *); |
| 2247 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2248 | if (!(*format == 's' || *format == 't')) |
| 2249 | /* after 'e', only 's' and 't' is allowed */ |
| 2250 | goto err; |
| 2251 | format++; |
| 2252 | /* explicit fallthrough to string cases */ |
| 2253 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2254 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2255 | case 's': /* string */ |
| 2256 | case 'z': /* string or None */ |
| 2257 | case 'y': /* bytes */ |
| 2258 | case 'u': /* unicode string */ |
Larry Hastings | d9e4a41 | 2012-05-08 03:51:18 -0700 | [diff] [blame] | 2259 | case 'Z': /* unicode string or None */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2260 | case 'w': /* buffer, read-write */ |
| 2261 | { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2262 | if (p_va != NULL) { |
| 2263 | (void) va_arg(*p_va, char **); |
| 2264 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2265 | if (*format == '#') { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2266 | if (p_va != NULL) { |
| 2267 | if (flags & FLAG_SIZE_T) |
| 2268 | (void) va_arg(*p_va, Py_ssize_t *); |
| 2269 | else |
| 2270 | (void) va_arg(*p_va, int *); |
| 2271 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2272 | format++; |
| 2273 | } else if ((c == 's' || c == 'z' || c == 'y') && *format == '*') { |
| 2274 | format++; |
| 2275 | } |
| 2276 | break; |
| 2277 | } |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2278 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2279 | case 'O': /* object */ |
| 2280 | { |
| 2281 | if (*format == '!') { |
| 2282 | format++; |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2283 | if (p_va != NULL) { |
| 2284 | (void) va_arg(*p_va, PyTypeObject*); |
| 2285 | (void) va_arg(*p_va, PyObject **); |
| 2286 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2287 | } |
| 2288 | else if (*format == '&') { |
| 2289 | typedef int (*converter)(PyObject *, void *); |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2290 | if (p_va != NULL) { |
| 2291 | (void) va_arg(*p_va, converter); |
| 2292 | (void) va_arg(*p_va, void *); |
| 2293 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2294 | format++; |
| 2295 | } |
| 2296 | else { |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2297 | if (p_va != NULL) { |
| 2298 | (void) va_arg(*p_va, PyObject **); |
| 2299 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2300 | } |
| 2301 | break; |
| 2302 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2303 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2304 | case '(': /* bypass tuple, not handled at all previously */ |
| 2305 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 2306 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2307 | for (;;) { |
| 2308 | if (*format==')') |
| 2309 | break; |
| 2310 | if (IS_END_OF_FORMAT(*format)) |
| 2311 | return "Unmatched left paren in format " |
| 2312 | "string"; |
| 2313 | msg = skipitem(&format, p_va, flags); |
| 2314 | if (msg) |
| 2315 | return msg; |
| 2316 | } |
| 2317 | format++; |
| 2318 | break; |
| 2319 | } |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 2320 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2321 | case ')': |
| 2322 | return "Unmatched right paren in format string"; |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 2323 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2324 | default: |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2325 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2326 | return "impossible<bad format char>"; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2327 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2328 | } |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 2329 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2330 | *p_format = format; |
| 2331 | return NULL; |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 2332 | } |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2333 | |
| 2334 | |
| 2335 | int |
Martin v. Löwis | 7624674 | 2006-03-01 04:06:10 +0000 | [diff] [blame] | 2336 | PyArg_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t max, ...) |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2337 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2338 | Py_ssize_t i, l; |
| 2339 | PyObject **o; |
| 2340 | va_list vargs; |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2341 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2342 | assert(min >= 0); |
| 2343 | assert(min <= max); |
| 2344 | if (!PyTuple_Check(args)) { |
| 2345 | PyErr_SetString(PyExc_SystemError, |
| 2346 | "PyArg_UnpackTuple() argument list is not a tuple"); |
| 2347 | return 0; |
| 2348 | } |
| 2349 | l = PyTuple_GET_SIZE(args); |
| 2350 | if (l < min) { |
| 2351 | if (name != NULL) |
| 2352 | PyErr_Format( |
| 2353 | PyExc_TypeError, |
| 2354 | "%s expected %s%zd arguments, got %zd", |
| 2355 | name, (min == max ? "" : "at least "), min, l); |
| 2356 | else |
| 2357 | PyErr_Format( |
| 2358 | PyExc_TypeError, |
| 2359 | "unpacked tuple should have %s%zd elements," |
| 2360 | " but has %zd", |
| 2361 | (min == max ? "" : "at least "), min, l); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2362 | return 0; |
| 2363 | } |
Raymond Hettinger | 9423023 | 2016-03-26 03:02:48 -0700 | [diff] [blame] | 2364 | if (l == 0) |
| 2365 | return 1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2366 | if (l > max) { |
| 2367 | if (name != NULL) |
| 2368 | PyErr_Format( |
| 2369 | PyExc_TypeError, |
| 2370 | "%s expected %s%zd arguments, got %zd", |
| 2371 | name, (min == max ? "" : "at most "), max, l); |
| 2372 | else |
| 2373 | PyErr_Format( |
| 2374 | PyExc_TypeError, |
| 2375 | "unpacked tuple should have %s%zd elements," |
| 2376 | " but has %zd", |
| 2377 | (min == max ? "" : "at most "), max, l); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2378 | return 0; |
| 2379 | } |
Raymond Hettinger | 9423023 | 2016-03-26 03:02:48 -0700 | [diff] [blame] | 2380 | |
| 2381 | #ifdef HAVE_STDARG_PROTOTYPES |
| 2382 | va_start(vargs, max); |
| 2383 | #else |
| 2384 | va_start(vargs); |
| 2385 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2386 | for (i = 0; i < l; i++) { |
| 2387 | o = va_arg(vargs, PyObject **); |
| 2388 | *o = PyTuple_GET_ITEM(args, i); |
| 2389 | } |
| 2390 | va_end(vargs); |
| 2391 | return 1; |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 2392 | } |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2393 | |
| 2394 | |
| 2395 | /* For type constructors that don't take keyword args |
| 2396 | * |
Larry Hastings | b7ccb20 | 2014-01-18 23:50:21 -0800 | [diff] [blame] | 2397 | * Sets a TypeError and returns 0 if the args/kwargs is |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 2398 | * not empty, returns 1 otherwise |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2399 | */ |
| 2400 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 2401 | _PyArg_NoKeywords(const char *funcname, PyObject *kw) |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2402 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2403 | if (kw == NULL) |
| 2404 | return 1; |
| 2405 | if (!PyDict_CheckExact(kw)) { |
| 2406 | PyErr_BadInternalCall(); |
| 2407 | return 0; |
| 2408 | } |
| 2409 | if (PyDict_Size(kw) == 0) |
| 2410 | return 1; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 2411 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2412 | PyErr_Format(PyExc_TypeError, "%s does not take keyword arguments", |
| 2413 | funcname); |
| 2414 | return 0; |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 2415 | } |
Larry Hastings | b7ccb20 | 2014-01-18 23:50:21 -0800 | [diff] [blame] | 2416 | |
| 2417 | |
| 2418 | int |
| 2419 | _PyArg_NoPositional(const char *funcname, PyObject *args) |
| 2420 | { |
| 2421 | if (args == NULL) |
| 2422 | return 1; |
| 2423 | if (!PyTuple_CheckExact(args)) { |
| 2424 | PyErr_BadInternalCall(); |
| 2425 | return 0; |
| 2426 | } |
| 2427 | if (PyTuple_GET_SIZE(args) == 0) |
| 2428 | return 1; |
| 2429 | |
| 2430 | PyErr_Format(PyExc_TypeError, "%s does not take positional arguments", |
| 2431 | funcname); |
| 2432 | return 0; |
| 2433 | } |
| 2434 | |
Serhiy Storchaka | 9171a8b | 2016-08-14 10:52:18 +0300 | [diff] [blame] | 2435 | void |
| 2436 | _PyArg_Fini(void) |
| 2437 | { |
| 2438 | struct _PyArg_Parser *tmp, *s = static_arg_parsers; |
| 2439 | while (s) { |
| 2440 | tmp = s->next; |
| 2441 | s->next = NULL; |
| 2442 | parser_clear(s); |
| 2443 | s = tmp; |
| 2444 | } |
| 2445 | static_arg_parsers = NULL; |
| 2446 | } |
| 2447 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2448 | #ifdef __cplusplus |
| 2449 | }; |
| 2450 | #endif |