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 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 21 | #ifdef HAVE_DECLSPEC_DLL |
| 22 | /* Export functions */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 23 | PyAPI_FUNC(int) _PyArg_Parse_SizeT(PyObject *, const char *, ...); |
| 24 | PyAPI_FUNC(int) _PyArg_ParseTuple_SizeT(PyObject *, const char *, ...); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 25 | PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
| 26 | const char *, char **, ...); |
| 27 | PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 28 | PyAPI_FUNC(int) _PyArg_VaParse_SizeT(PyObject *, const char *, va_list); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 29 | PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *, PyObject *, |
| 30 | const char *, char **, va_list); |
| 31 | #endif |
| 32 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 33 | #define FLAG_COMPAT 1 |
| 34 | #define FLAG_SIZE_T 2 |
| 35 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 36 | typedef int (*destr_t)(PyObject *, void *); |
| 37 | |
| 38 | |
| 39 | /* Keep track of "objects" that have been allocated or initialized and |
| 40 | which will need to be deallocated or cleaned up somehow if overall |
| 41 | parsing fails. |
| 42 | */ |
| 43 | typedef struct { |
| 44 | void *item; |
| 45 | destr_t destructor; |
| 46 | } freelistentry_t; |
| 47 | |
| 48 | typedef struct { |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 49 | freelistentry_t *entries; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 50 | int first_available; |
| 51 | int entries_malloced; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 52 | } freelist_t; |
| 53 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 54 | #define STATIC_FREELIST_ENTRIES 8 |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 55 | |
| 56 | /* Forward */ |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 57 | static int vgetargs1(PyObject *, const char *, va_list *, int); |
Victor Stinner | 84bb1cf | 2013-05-17 00:12:04 +0200 | [diff] [blame] | 58 | 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] | 59 | static const char *convertitem(PyObject *, const char **, va_list *, int, int *, |
| 60 | char *, size_t, freelist_t *); |
| 61 | static const char *converttuple(PyObject *, const char **, va_list *, int, |
| 62 | int *, char *, size_t, int, freelist_t *); |
| 63 | static const char *convertsimple(PyObject *, const char **, va_list *, int, |
| 64 | char *, size_t, freelist_t *); |
| 65 | static Py_ssize_t convertbuffer(PyObject *, void **p, const char **); |
| 66 | static int getbuffer(PyObject *, Py_buffer *, const char**); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 67 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 68 | static int vgetargskeywords(PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 69 | const char *, char **, va_list *, int); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 70 | static const char *skipitem(const char **, va_list *, int); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 71 | |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 72 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 73 | PyArg_Parse(PyObject *args, const char *format, ...) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 74 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 75 | int retval; |
| 76 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 77 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 78 | va_start(va, format); |
| 79 | retval = vgetargs1(args, format, &va, FLAG_COMPAT); |
| 80 | va_end(va); |
| 81 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 85 | _PyArg_Parse_SizeT(PyObject *args, const char *format, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 86 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 87 | int retval; |
| 88 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 89 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 90 | va_start(va, format); |
| 91 | retval = vgetargs1(args, format, &va, FLAG_COMPAT|FLAG_SIZE_T); |
| 92 | va_end(va); |
| 93 | return retval; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 97 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 98 | PyArg_ParseTuple(PyObject *args, const char *format, ...) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 99 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 100 | int retval; |
| 101 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 102 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 103 | va_start(va, format); |
| 104 | retval = vgetargs1(args, format, &va, 0); |
| 105 | va_end(va); |
| 106 | return retval; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 107 | } |
| 108 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 109 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 110 | _PyArg_ParseTuple_SizeT(PyObject *args, const char *format, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 111 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 112 | int retval; |
| 113 | va_list va; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 114 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 115 | va_start(va, format); |
| 116 | retval = vgetargs1(args, format, &va, FLAG_SIZE_T); |
| 117 | va_end(va); |
| 118 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 119 | } |
| 120 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 121 | |
| 122 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 123 | PyArg_VaParse(PyObject *args, const char *format, va_list va) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 124 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 125 | va_list lva; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 126 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 127 | Py_VA_COPY(lva, va); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 128 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 129 | return vgetargs1(args, format, &lva, 0); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 130 | } |
| 131 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 132 | int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 133 | _PyArg_VaParse_SizeT(PyObject *args, const char *format, va_list va) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 134 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 135 | va_list lva; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 136 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 137 | Py_VA_COPY(lva, va); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 138 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 139 | return vgetargs1(args, format, &lva, FLAG_SIZE_T); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 140 | } |
| 141 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 142 | |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 143 | /* Handle cleanup of allocated memory in case of exception */ |
| 144 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 145 | static int |
| 146 | cleanup_ptr(PyObject *self, void *ptr) |
Antoine Pitrou | f7199578 | 2008-08-29 18:37:05 +0000 | [diff] [blame] | 147 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 148 | if (ptr) { |
| 149 | PyMem_FREE(ptr); |
| 150 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 151 | return 0; |
Martin v. Löwis | c15bdef | 2009-05-29 14:47:46 +0000 | [diff] [blame] | 152 | } |
| 153 | |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 154 | static int |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 155 | cleanup_buffer(PyObject *self, void *ptr) |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 156 | { |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 157 | Py_buffer *buf = (Py_buffer *)ptr; |
| 158 | if (buf) { |
| 159 | PyBuffer_Release(buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 160 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | static int |
| 165 | addcleanup(void *ptr, freelist_t *freelist, destr_t destructor) |
| 166 | { |
| 167 | int index; |
| 168 | |
| 169 | index = freelist->first_available; |
| 170 | freelist->first_available += 1; |
| 171 | |
| 172 | freelist->entries[index].item = ptr; |
| 173 | freelist->entries[index].destructor = destructor; |
| 174 | |
| 175 | return 0; |
| 176 | } |
| 177 | |
| 178 | static int |
| 179 | cleanreturn(int retval, freelist_t *freelist) |
| 180 | { |
| 181 | int index; |
| 182 | |
| 183 | if (retval == 0) { |
| 184 | /* A failure occurred, therefore execute all of the cleanup |
| 185 | functions. |
| 186 | */ |
| 187 | for (index = 0; index < freelist->first_available; ++index) { |
| 188 | freelist->entries[index].destructor(NULL, |
| 189 | freelist->entries[index].item); |
| 190 | } |
| 191 | } |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 192 | if (freelist->entries_malloced) |
| 193 | PyMem_FREE(freelist->entries); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 194 | return retval; |
Martin v. Löwis | e6bbb4d | 2003-05-03 10:00:22 +0000 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 198 | static int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 199 | 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] | 200 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 201 | char msgbuf[256]; |
| 202 | int levels[32]; |
| 203 | const char *fname = NULL; |
| 204 | const char *message = NULL; |
| 205 | int min = -1; |
| 206 | int max = 0; |
| 207 | int level = 0; |
| 208 | int endfmt = 0; |
| 209 | const char *formatsave = format; |
| 210 | Py_ssize_t i, len; |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 211 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 212 | int compat = flags & FLAG_COMPAT; |
Benjamin Peterson | 40be9e5 | 2014-02-11 10:09:27 -0500 | [diff] [blame] | 213 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
| 214 | freelist_t freelist; |
| 215 | |
| 216 | freelist.entries = static_entries; |
| 217 | freelist.first_available = 0; |
| 218 | freelist.entries_malloced = 0; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 219 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 220 | assert(compat || (args != (PyObject*)NULL)); |
| 221 | flags = flags & ~FLAG_COMPAT; |
Tim Peters | 5c4d5bf | 2001-02-12 22:13:26 +0000 | [diff] [blame] | 222 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 223 | while (endfmt == 0) { |
| 224 | int c = *format++; |
| 225 | switch (c) { |
| 226 | case '(': |
| 227 | if (level == 0) |
| 228 | max++; |
| 229 | level++; |
| 230 | if (level >= 30) |
| 231 | Py_FatalError("too many tuple nesting levels " |
| 232 | "in argument format string"); |
| 233 | break; |
| 234 | case ')': |
| 235 | if (level == 0) |
| 236 | Py_FatalError("excess ')' in getargs format"); |
| 237 | else |
| 238 | level--; |
| 239 | break; |
| 240 | case '\0': |
| 241 | endfmt = 1; |
| 242 | break; |
| 243 | case ':': |
| 244 | fname = format; |
| 245 | endfmt = 1; |
| 246 | break; |
| 247 | case ';': |
| 248 | message = format; |
| 249 | endfmt = 1; |
| 250 | break; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 251 | case '|': |
| 252 | if (level == 0) |
| 253 | min = max; |
| 254 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 255 | default: |
| 256 | if (level == 0) { |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 257 | if (Py_ISALPHA(Py_CHARMASK(c))) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 258 | if (c != 'e') /* skip encoded */ |
| 259 | max++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 260 | } |
| 261 | break; |
| 262 | } |
| 263 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 264 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 265 | if (level != 0) |
| 266 | Py_FatalError(/* '(' */ "missing ')' in getargs format"); |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 267 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 268 | if (min < 0) |
| 269 | min = max; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 270 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 271 | format = formatsave; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 272 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 273 | if (max > STATIC_FREELIST_ENTRIES) { |
| 274 | freelist.entries = PyMem_NEW(freelistentry_t, max); |
| 275 | if (freelist.entries == NULL) { |
| 276 | PyErr_NoMemory(); |
| 277 | return 0; |
| 278 | } |
| 279 | freelist.entries_malloced = 1; |
Benjamin Peterson | 7ed6727 | 2012-03-16 12:21:02 -0500 | [diff] [blame] | 280 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 281 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 282 | if (compat) { |
| 283 | if (max == 0) { |
| 284 | if (args == NULL) |
| 285 | return 1; |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 286 | PyErr_Format(PyExc_TypeError, |
| 287 | "%.200s%s takes no arguments", |
| 288 | fname==NULL ? "function" : fname, |
| 289 | fname==NULL ? "" : "()"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 290 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 291 | } |
| 292 | else if (min == 1 && max == 1) { |
| 293 | if (args == NULL) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 294 | PyErr_Format(PyExc_TypeError, |
| 295 | "%.200s%s takes at least one argument", |
| 296 | fname==NULL ? "function" : fname, |
| 297 | fname==NULL ? "" : "()"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 298 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 299 | } |
| 300 | msg = convertitem(args, &format, p_va, flags, levels, |
| 301 | msgbuf, sizeof(msgbuf), &freelist); |
| 302 | if (msg == NULL) |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 303 | return cleanreturn(1, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 304 | seterror(levels[0], msg, levels+1, fname, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 305 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 306 | } |
| 307 | else { |
| 308 | PyErr_SetString(PyExc_SystemError, |
| 309 | "old style getargs format uses new features"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 310 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 311 | } |
| 312 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 313 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 314 | if (!PyTuple_Check(args)) { |
| 315 | PyErr_SetString(PyExc_SystemError, |
| 316 | "new style getargs format but argument is not a tuple"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 317 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 318 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 319 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 320 | len = PyTuple_GET_SIZE(args); |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 321 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 322 | if (len < min || max < len) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 323 | if (message == NULL) |
| 324 | PyErr_Format(PyExc_TypeError, |
| 325 | "%.150s%s takes %s %d argument%s (%ld given)", |
| 326 | fname==NULL ? "function" : fname, |
| 327 | fname==NULL ? "" : "()", |
| 328 | min==max ? "exactly" |
| 329 | : len < min ? "at least" : "at most", |
| 330 | len < min ? min : max, |
| 331 | (len < min ? min : max) == 1 ? "" : "s", |
| 332 | Py_SAFE_DOWNCAST(len, Py_ssize_t, long)); |
| 333 | else |
| 334 | PyErr_SetString(PyExc_TypeError, message); |
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 | for (i = 0; i < len; i++) { |
| 339 | if (*format == '|') |
| 340 | format++; |
| 341 | msg = convertitem(PyTuple_GET_ITEM(args, i), &format, p_va, |
| 342 | flags, levels, msgbuf, |
| 343 | sizeof(msgbuf), &freelist); |
| 344 | if (msg) { |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 345 | seterror(i+1, msg, levels, fname, message); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 346 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 347 | } |
| 348 | } |
Guido van Rossum | 231a41e | 1997-12-09 20:36:39 +0000 | [diff] [blame] | 349 | |
Antoine Pitrou | 4de7457 | 2013-02-09 23:11:27 +0100 | [diff] [blame] | 350 | if (*format != '\0' && !Py_ISALPHA(Py_CHARMASK(*format)) && |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 351 | *format != '(' && |
| 352 | *format != '|' && *format != ':' && *format != ';') { |
| 353 | PyErr_Format(PyExc_SystemError, |
| 354 | "bad format string: %.200s", formatsave); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 355 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 356 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 357 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 358 | return cleanreturn(1, &freelist); |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 359 | } |
| 360 | |
| 361 | |
| 362 | |
| 363 | static void |
Victor Stinner | 84bb1cf | 2013-05-17 00:12:04 +0200 | [diff] [blame] | 364 | 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] | 365 | const char *message) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 366 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 367 | char buf[512]; |
| 368 | int i; |
| 369 | char *p = buf; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 370 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 371 | if (PyErr_Occurred()) |
| 372 | return; |
| 373 | else if (message == NULL) { |
| 374 | if (fname != NULL) { |
| 375 | PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname); |
| 376 | p += strlen(p); |
| 377 | } |
| 378 | if (iarg != 0) { |
| 379 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
Richard Oudkerk | 25296ce | 2013-05-18 17:35:19 +0100 | [diff] [blame] | 380 | "argument %" PY_FORMAT_SIZE_T "d", iarg); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 381 | i = 0; |
| 382 | p += strlen(p); |
Georg Brandl | 142ad66 | 2013-10-14 07:01:11 +0200 | [diff] [blame] | 383 | while (i < 32 && levels[i] > 0 && (int)(p-buf) < 220) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 384 | PyOS_snprintf(p, sizeof(buf) - (p - buf), |
| 385 | ", item %d", levels[i]-1); |
| 386 | p += strlen(p); |
| 387 | i++; |
| 388 | } |
| 389 | } |
| 390 | else { |
| 391 | PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument"); |
| 392 | p += strlen(p); |
| 393 | } |
| 394 | PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg); |
| 395 | message = buf; |
| 396 | } |
Serhiy Storchaka | 4cd63ef | 2016-02-08 01:22:47 +0200 | [diff] [blame] | 397 | if (msg[0] == '(') { |
| 398 | PyErr_SetString(PyExc_SystemError, message); |
| 399 | } |
| 400 | else { |
| 401 | PyErr_SetString(PyExc_TypeError, message); |
| 402 | } |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 403 | } |
| 404 | |
| 405 | |
| 406 | /* Convert a tuple argument. |
| 407 | On entry, *p_format points to the character _after_ the opening '('. |
| 408 | On successful exit, *p_format points to the closing ')'. |
| 409 | If successful: |
| 410 | *p_format and *p_va are updated, |
| 411 | *levels and *msgbuf are untouched, |
| 412 | and NULL is returned. |
| 413 | If the argument is invalid: |
| 414 | *p_format is unchanged, |
| 415 | *p_va is undefined, |
| 416 | *levels is a 0-terminated list of item numbers, |
| 417 | *msgbuf contains an error message, whose format is: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 418 | "must be <typename1>, not <typename2>", where: |
| 419 | <typename1> is the name of the expected type, and |
| 420 | <typename2> is the name of the actual type, |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 421 | and msgbuf is returned. |
| 422 | */ |
| 423 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 424 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 425 | 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] | 426 | int *levels, char *msgbuf, size_t bufsize, int toplevel, |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 427 | freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 428 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 429 | int level = 0; |
| 430 | int n = 0; |
| 431 | const char *format = *p_format; |
| 432 | int i; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 433 | Py_ssize_t len; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 434 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 435 | for (;;) { |
| 436 | int c = *format++; |
| 437 | if (c == '(') { |
| 438 | if (level == 0) |
| 439 | n++; |
| 440 | level++; |
| 441 | } |
| 442 | else if (c == ')') { |
| 443 | if (level == 0) |
| 444 | break; |
| 445 | level--; |
| 446 | } |
| 447 | else if (c == ':' || c == ';' || c == '\0') |
| 448 | break; |
Antoine Pitrou | 4de7457 | 2013-02-09 23:11:27 +0100 | [diff] [blame] | 449 | else if (level == 0 && Py_ISALPHA(Py_CHARMASK(c))) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 450 | n++; |
| 451 | } |
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 | if (!PySequence_Check(arg) || PyBytes_Check(arg)) { |
| 454 | levels[0] = 0; |
| 455 | PyOS_snprintf(msgbuf, bufsize, |
| 456 | toplevel ? "expected %d arguments, not %.50s" : |
| 457 | "must be %d-item sequence, not %.50s", |
| 458 | n, |
| 459 | arg == Py_None ? "None" : arg->ob_type->tp_name); |
| 460 | return msgbuf; |
| 461 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 462 | |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 463 | len = PySequence_Size(arg); |
| 464 | if (len != n) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 465 | levels[0] = 0; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 466 | if (toplevel) { |
| 467 | PyOS_snprintf(msgbuf, bufsize, |
| 468 | "expected %d arguments, not %" PY_FORMAT_SIZE_T "d", |
| 469 | n, len); |
| 470 | } |
| 471 | else { |
| 472 | PyOS_snprintf(msgbuf, bufsize, |
| 473 | "must be sequence of length %d, " |
| 474 | "not %" PY_FORMAT_SIZE_T "d", |
| 475 | n, len); |
| 476 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 477 | return msgbuf; |
| 478 | } |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 479 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 480 | format = *p_format; |
| 481 | for (i = 0; i < n; i++) { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 482 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 483 | PyObject *item; |
| 484 | item = PySequence_GetItem(arg, i); |
| 485 | if (item == NULL) { |
| 486 | PyErr_Clear(); |
| 487 | levels[0] = i+1; |
| 488 | levels[1] = 0; |
| 489 | strncpy(msgbuf, "is not retrievable", bufsize); |
| 490 | return msgbuf; |
| 491 | } |
| 492 | msg = convertitem(item, &format, p_va, flags, levels+1, |
| 493 | msgbuf, bufsize, freelist); |
| 494 | /* PySequence_GetItem calls tp->sq_item, which INCREFs */ |
| 495 | Py_XDECREF(item); |
| 496 | if (msg != NULL) { |
| 497 | levels[0] = i+1; |
| 498 | return msg; |
| 499 | } |
| 500 | } |
Ka-Ping Yee | 2057970 | 2001-01-15 22:14:16 +0000 | [diff] [blame] | 501 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 502 | *p_format = format; |
| 503 | return NULL; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 504 | } |
| 505 | |
| 506 | |
| 507 | /* Convert a single item. */ |
| 508 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 509 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 510 | 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] | 511 | int *levels, char *msgbuf, size_t bufsize, freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 512 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 513 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 514 | const char *format = *p_format; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 515 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 516 | if (*format == '(' /* ')' */) { |
| 517 | format++; |
| 518 | msg = converttuple(arg, &format, p_va, flags, levels, msgbuf, |
| 519 | bufsize, 0, freelist); |
| 520 | if (msg == NULL) |
| 521 | format++; |
| 522 | } |
| 523 | else { |
| 524 | msg = convertsimple(arg, &format, p_va, flags, |
| 525 | msgbuf, bufsize, freelist); |
| 526 | if (msg != NULL) |
| 527 | levels[0] = 0; |
| 528 | } |
| 529 | if (msg == NULL) |
| 530 | *p_format = format; |
| 531 | return msg; |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 532 | } |
| 533 | |
| 534 | |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 535 | |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 536 | /* Format an error message generated by convertsimple(). */ |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 537 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 538 | static const char * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 539 | converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize) |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 540 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 541 | assert(expected != NULL); |
| 542 | assert(arg != NULL); |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 543 | if (expected[0] == '(') { |
| 544 | PyOS_snprintf(msgbuf, bufsize, |
| 545 | "%.100s", expected); |
| 546 | } |
| 547 | else { |
| 548 | PyOS_snprintf(msgbuf, bufsize, |
| 549 | "must be %.50s, not %.50s", expected, |
| 550 | arg == Py_None ? "None" : arg->ob_type->tp_name); |
| 551 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 552 | return msgbuf; |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 553 | } |
| 554 | |
| 555 | #define CONV_UNICODE "(unicode conversion error)" |
| 556 | |
Guido van Rossum | 45aecf4 | 2006-03-15 04:58:47 +0000 | [diff] [blame] | 557 | /* Explicitly check for float arguments when integers are expected. |
| 558 | Return 1 for error, 0 if ok. */ |
Neil Schemenauer | 5042da6 | 2003-02-04 20:59:40 +0000 | [diff] [blame] | 559 | static int |
| 560 | float_argument_error(PyObject *arg) |
| 561 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 562 | if (PyFloat_Check(arg)) { |
| 563 | PyErr_SetString(PyExc_TypeError, |
| 564 | "integer argument expected, got float" ); |
| 565 | return 1; |
| 566 | } |
| 567 | else |
| 568 | return 0; |
Neil Schemenauer | 5042da6 | 2003-02-04 20:59:40 +0000 | [diff] [blame] | 569 | } |
| 570 | |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 571 | /* Convert a non-tuple argument. Return NULL if conversion went OK, |
| 572 | or a string with a message describing the failure. The message is |
| 573 | formatted as "must be <desired type>, not <actual type>". |
| 574 | When failing, an exception may or may not have been raised. |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 575 | Don't call if a tuple is expected. |
| 576 | |
| 577 | 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] | 578 | */ |
| 579 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 580 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 581 | 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] | 582 | char *msgbuf, size_t bufsize, freelist_t *freelist) |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 583 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 584 | /* For # codes */ |
| 585 | #define FETCH_SIZE int *q=NULL;Py_ssize_t *q2=NULL;\ |
| 586 | if (flags & FLAG_SIZE_T) q2=va_arg(*p_va, Py_ssize_t*); \ |
| 587 | else q=va_arg(*p_va, int*); |
Victor Stinner | b3c9e07 | 2011-01-04 02:07:34 +0000 | [diff] [blame] | 588 | #define STORE_SIZE(s) \ |
| 589 | if (flags & FLAG_SIZE_T) \ |
| 590 | *q2=s; \ |
| 591 | else { \ |
| 592 | if (INT_MAX < s) { \ |
| 593 | PyErr_SetString(PyExc_OverflowError, \ |
| 594 | "size does not fit in an int"); \ |
| 595 | return converterr("", arg, msgbuf, bufsize); \ |
| 596 | } \ |
Victor Stinner | 9550ef3 | 2013-06-05 01:18:13 +0200 | [diff] [blame] | 597 | *q = (int)s; \ |
Victor Stinner | b3c9e07 | 2011-01-04 02:07:34 +0000 | [diff] [blame] | 598 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 599 | #define BUFFER_LEN ((flags & FLAG_SIZE_T) ? *q2:*q) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 600 | #define RETURN_ERR_OCCURRED return msgbuf |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 601 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 602 | const char *format = *p_format; |
| 603 | char c = *format++; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 604 | char *sarg; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 605 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 606 | switch (c) { |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 607 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 608 | case 'b': { /* unsigned byte -- very short int */ |
| 609 | char *p = va_arg(*p_va, char *); |
| 610 | long ival; |
| 611 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 612 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 613 | ival = PyLong_AsLong(arg); |
| 614 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 615 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 616 | else if (ival < 0) { |
| 617 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 618 | "unsigned byte integer is less than minimum"); |
| 619 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 620 | } |
| 621 | else if (ival > UCHAR_MAX) { |
| 622 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 623 | "unsigned byte integer is greater than maximum"); |
| 624 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 625 | } |
| 626 | else |
| 627 | *p = (unsigned char) ival; |
| 628 | break; |
| 629 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 630 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 631 | case 'B': {/* byte sized bitfield - both signed and unsigned |
| 632 | values allowed */ |
| 633 | char *p = va_arg(*p_va, char *); |
| 634 | long ival; |
| 635 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 636 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 637 | ival = PyLong_AsUnsignedLongMask(arg); |
| 638 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 639 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 640 | else |
| 641 | *p = (unsigned char) ival; |
| 642 | break; |
| 643 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 644 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 645 | case 'h': {/* signed short int */ |
| 646 | short *p = va_arg(*p_va, short *); |
| 647 | long ival; |
| 648 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 649 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 650 | ival = PyLong_AsLong(arg); |
| 651 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 652 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 653 | else if (ival < SHRT_MIN) { |
| 654 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 655 | "signed short integer is less than minimum"); |
| 656 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 657 | } |
| 658 | else if (ival > SHRT_MAX) { |
| 659 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 660 | "signed short integer is greater than maximum"); |
| 661 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 662 | } |
| 663 | else |
| 664 | *p = (short) ival; |
| 665 | break; |
| 666 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 667 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 668 | case 'H': { /* short int sized bitfield, both signed and |
| 669 | unsigned allowed */ |
| 670 | unsigned short *p = va_arg(*p_va, unsigned short *); |
| 671 | long ival; |
| 672 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 673 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 674 | ival = PyLong_AsUnsignedLongMask(arg); |
| 675 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 676 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 677 | else |
| 678 | *p = (unsigned short) ival; |
| 679 | break; |
| 680 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 681 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 682 | case 'i': {/* signed int */ |
| 683 | int *p = va_arg(*p_va, int *); |
| 684 | long ival; |
| 685 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 686 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 687 | ival = PyLong_AsLong(arg); |
| 688 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 689 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 690 | else if (ival > INT_MAX) { |
| 691 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 692 | "signed integer is greater than maximum"); |
| 693 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 694 | } |
| 695 | else if (ival < INT_MIN) { |
| 696 | PyErr_SetString(PyExc_OverflowError, |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 697 | "signed integer is less than minimum"); |
| 698 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 699 | } |
| 700 | else |
| 701 | *p = ival; |
| 702 | break; |
| 703 | } |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 704 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 705 | case 'I': { /* int sized bitfield, both signed and |
| 706 | unsigned allowed */ |
| 707 | unsigned int *p = va_arg(*p_va, unsigned int *); |
| 708 | unsigned int ival; |
| 709 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 710 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 711 | ival = (unsigned int)PyLong_AsUnsignedLongMask(arg); |
| 712 | if (ival == (unsigned int)-1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 713 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 714 | else |
| 715 | *p = ival; |
| 716 | break; |
| 717 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 718 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 719 | case 'n': /* Py_ssize_t */ |
| 720 | { |
| 721 | PyObject *iobj; |
| 722 | Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *); |
| 723 | Py_ssize_t ival = -1; |
| 724 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 725 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 726 | iobj = PyNumber_Index(arg); |
| 727 | if (iobj != NULL) { |
| 728 | ival = PyLong_AsSsize_t(iobj); |
| 729 | Py_DECREF(iobj); |
| 730 | } |
| 731 | if (ival == -1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 732 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 733 | *p = ival; |
| 734 | break; |
| 735 | } |
| 736 | case 'l': {/* long int */ |
| 737 | long *p = va_arg(*p_va, long *); |
| 738 | long ival; |
| 739 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 740 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 741 | ival = PyLong_AsLong(arg); |
| 742 | if (ival == -1 && PyErr_Occurred()) |
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 | else |
| 745 | *p = ival; |
| 746 | break; |
| 747 | } |
Thomas Heller | a4ea603 | 2003-04-17 18:55:45 +0000 | [diff] [blame] | 748 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 749 | case 'k': { /* long sized bitfield */ |
| 750 | unsigned long *p = va_arg(*p_va, unsigned long *); |
| 751 | unsigned long ival; |
| 752 | if (PyLong_Check(arg)) |
| 753 | ival = PyLong_AsUnsignedLongMask(arg); |
| 754 | else |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 755 | return converterr("int", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 756 | *p = ival; |
| 757 | break; |
| 758 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 759 | |
Guido van Rossum | 3dbba6e | 1999-01-25 21:48:56 +0000 | [diff] [blame] | 760 | #ifdef HAVE_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 761 | case 'L': {/* PY_LONG_LONG */ |
| 762 | PY_LONG_LONG *p = va_arg( *p_va, PY_LONG_LONG * ); |
| 763 | PY_LONG_LONG ival; |
Mark Dickinson | c730131 | 2010-06-10 16:05:10 +0000 | [diff] [blame] | 764 | if (float_argument_error(arg)) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 765 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 766 | ival = PyLong_AsLongLong(arg); |
Mark Dickinson | c730131 | 2010-06-10 16:05:10 +0000 | [diff] [blame] | 767 | if (ival == (PY_LONG_LONG)-1 && PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 768 | RETURN_ERR_OCCURRED; |
Mark Dickinson | c730131 | 2010-06-10 16:05:10 +0000 | [diff] [blame] | 769 | else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 770 | *p = ival; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 771 | break; |
| 772 | } |
Thomas Heller | a4ea603 | 2003-04-17 18:55:45 +0000 | [diff] [blame] | 773 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 774 | case 'K': { /* long long sized bitfield */ |
| 775 | unsigned PY_LONG_LONG *p = va_arg(*p_va, unsigned PY_LONG_LONG *); |
| 776 | unsigned PY_LONG_LONG ival; |
| 777 | if (PyLong_Check(arg)) |
| 778 | ival = PyLong_AsUnsignedLongLongMask(arg); |
| 779 | else |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 780 | return converterr("int", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 781 | *p = ival; |
| 782 | break; |
| 783 | } |
Guido van Rossum | 1a8791e | 1998-08-04 22:46:29 +0000 | [diff] [blame] | 784 | #endif |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 785 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 786 | case 'f': {/* float */ |
| 787 | float *p = va_arg(*p_va, float *); |
| 788 | double dval = PyFloat_AsDouble(arg); |
| 789 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 790 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 791 | else |
| 792 | *p = (float) dval; |
| 793 | break; |
| 794 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 795 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 796 | case 'd': {/* double */ |
| 797 | double *p = va_arg(*p_va, double *); |
| 798 | double dval = PyFloat_AsDouble(arg); |
| 799 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 800 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 801 | else |
| 802 | *p = dval; |
| 803 | break; |
| 804 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 805 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 806 | case 'D': {/* complex double */ |
| 807 | Py_complex *p = va_arg(*p_va, Py_complex *); |
| 808 | Py_complex cval; |
| 809 | cval = PyComplex_AsCComplex(arg); |
| 810 | if (PyErr_Occurred()) |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 811 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 812 | else |
| 813 | *p = cval; |
| 814 | break; |
| 815 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 816 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 817 | case 'c': {/* char */ |
| 818 | char *p = va_arg(*p_va, char *); |
| 819 | if (PyBytes_Check(arg) && PyBytes_Size(arg) == 1) |
| 820 | *p = PyBytes_AS_STRING(arg)[0]; |
Eli Bendersky | 906b88f | 2011-07-29 07:05:08 +0300 | [diff] [blame] | 821 | else if (PyByteArray_Check(arg) && PyByteArray_Size(arg) == 1) |
| 822 | *p = PyByteArray_AS_STRING(arg)[0]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 823 | else |
| 824 | return converterr("a byte string of length 1", arg, msgbuf, bufsize); |
| 825 | break; |
| 826 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 827 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 828 | case 'C': {/* unicode char */ |
| 829 | int *p = va_arg(*p_va, int *); |
Victor Stinner | e1335c7 | 2011-10-04 20:53:03 +0200 | [diff] [blame] | 830 | int kind; |
| 831 | void *data; |
| 832 | |
| 833 | if (!PyUnicode_Check(arg)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 834 | return converterr("a unicode character", arg, msgbuf, bufsize); |
Victor Stinner | e1335c7 | 2011-10-04 20:53:03 +0200 | [diff] [blame] | 835 | |
| 836 | if (PyUnicode_READY(arg)) |
| 837 | RETURN_ERR_OCCURRED; |
| 838 | |
| 839 | if (PyUnicode_GET_LENGTH(arg) != 1) |
| 840 | return converterr("a unicode character", arg, msgbuf, bufsize); |
| 841 | |
| 842 | kind = PyUnicode_KIND(arg); |
| 843 | data = PyUnicode_DATA(arg); |
| 844 | *p = PyUnicode_READ(kind, data, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 845 | break; |
| 846 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 847 | |
Larry Hastings | faf91e7 | 2012-05-05 16:54:29 -0700 | [diff] [blame] | 848 | case 'p': {/* boolean *p*redicate */ |
| 849 | int *p = va_arg(*p_va, int *); |
| 850 | int val = PyObject_IsTrue(arg); |
| 851 | if (val > 0) |
| 852 | *p = 1; |
| 853 | else if (val == 0) |
| 854 | *p = 0; |
| 855 | else |
| 856 | RETURN_ERR_OCCURRED; |
| 857 | break; |
| 858 | } |
| 859 | |
Victor Stinner | 3dcb5ac | 2010-06-08 22:54:19 +0000 | [diff] [blame] | 860 | /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 861 | need to be cleaned up! */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 862 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 863 | case 'y': {/* any bytes-like object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 864 | void **p = (void **)va_arg(*p_va, char **); |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 865 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 866 | Py_ssize_t count; |
| 867 | if (*format == '*') { |
| 868 | if (getbuffer(arg, (Py_buffer*)p, &buf) < 0) |
| 869 | return converterr(buf, arg, msgbuf, bufsize); |
| 870 | format++; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 871 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 872 | return converterr( |
| 873 | "(cleanup problem)", |
| 874 | arg, msgbuf, bufsize); |
| 875 | } |
| 876 | break; |
| 877 | } |
| 878 | count = convertbuffer(arg, p, &buf); |
| 879 | if (count < 0) |
| 880 | return converterr(buf, arg, msgbuf, bufsize); |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 881 | if (*format == '#') { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 882 | FETCH_SIZE; |
| 883 | STORE_SIZE(count); |
| 884 | format++; |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 885 | } else { |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 886 | if (strlen(*p) != (size_t)count) { |
| 887 | PyErr_SetString(PyExc_ValueError, "embedded null byte"); |
| 888 | RETURN_ERR_OCCURRED; |
| 889 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 890 | } |
| 891 | break; |
| 892 | } |
Walter Dörwald | 612344f | 2007-05-04 19:28:21 +0000 | [diff] [blame] | 893 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 894 | case 's': /* text string or bytes-like object */ |
| 895 | case 'z': /* text string, bytes-like object or None */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 896 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 897 | if (*format == '*') { |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 898 | /* "s*" or "z*" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 899 | Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 900 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 901 | if (c == 'z' && arg == Py_None) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 902 | PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0); |
| 903 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 904 | Py_ssize_t len; |
| 905 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 906 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 907 | return converterr(CONV_UNICODE, |
| 908 | arg, msgbuf, bufsize); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 909 | PyBuffer_FillInfo(p, arg, sarg, len, 1, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 910 | } |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 911 | else { /* any bytes-like object */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 912 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 913 | if (getbuffer(arg, p, &buf) < 0) |
| 914 | return converterr(buf, arg, msgbuf, bufsize); |
| 915 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 916 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 917 | return converterr( |
| 918 | "(cleanup problem)", |
| 919 | arg, msgbuf, bufsize); |
| 920 | } |
| 921 | format++; |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 922 | } else if (*format == '#') { /* a string or read-only bytes-like object */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 923 | /* "s#" or "z#" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 924 | void **p = (void **)va_arg(*p_va, char **); |
| 925 | FETCH_SIZE; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 926 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 927 | if (c == 'z' && arg == Py_None) { |
| 928 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 929 | STORE_SIZE(0); |
| 930 | } |
| 931 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 932 | Py_ssize_t len; |
| 933 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 934 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 935 | return converterr(CONV_UNICODE, |
| 936 | arg, msgbuf, bufsize); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 937 | *p = sarg; |
| 938 | STORE_SIZE(len); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 939 | } |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 940 | else { /* read-only bytes-like object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 941 | /* XXX Really? */ |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 942 | const char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 943 | Py_ssize_t count = convertbuffer(arg, p, &buf); |
| 944 | if (count < 0) |
| 945 | return converterr(buf, arg, msgbuf, bufsize); |
| 946 | STORE_SIZE(count); |
| 947 | } |
| 948 | format++; |
| 949 | } else { |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 950 | /* "s" or "z" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 951 | char **p = va_arg(*p_va, char **); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 952 | Py_ssize_t len; |
| 953 | sarg = NULL; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 954 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 955 | if (c == 'z' && arg == Py_None) |
| 956 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 957 | else if (PyUnicode_Check(arg)) { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 958 | sarg = PyUnicode_AsUTF8AndSize(arg, &len); |
| 959 | if (sarg == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 960 | return converterr(CONV_UNICODE, |
| 961 | arg, msgbuf, bufsize); |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 962 | if (strlen(sarg) != (size_t)len) { |
| 963 | PyErr_SetString(PyExc_ValueError, "embedded null character"); |
| 964 | RETURN_ERR_OCCURRED; |
| 965 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 966 | *p = sarg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 967 | } |
| 968 | else |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 969 | return converterr(c == 'z' ? "str or None" : "str", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 970 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 971 | } |
| 972 | break; |
| 973 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 974 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 975 | case 'u': /* raw unicode buffer (Py_UNICODE *) */ |
| 976 | case 'Z': /* raw unicode buffer or None */ |
| 977 | { |
Brett Cannon | b94767f | 2011-02-22 20:15:44 +0000 | [diff] [blame] | 978 | Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **); |
| 979 | |
Serhiy Storchaka | b757c83 | 2014-12-05 22:25:22 +0200 | [diff] [blame] | 980 | if (*format == '#') { |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 981 | /* "u#" or "Z#" */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 982 | FETCH_SIZE; |
Travis E. Oliphant | ddacf96 | 2007-10-13 21:03:27 +0000 | [diff] [blame] | 983 | |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 984 | if (c == 'Z' && arg == Py_None) { |
| 985 | *p = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 986 | STORE_SIZE(0); |
| 987 | } |
| 988 | else if (PyUnicode_Check(arg)) { |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 989 | Py_ssize_t len; |
| 990 | *p = PyUnicode_AsUnicodeAndSize(arg, &len); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 991 | if (*p == NULL) |
| 992 | RETURN_ERR_OCCURRED; |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 993 | STORE_SIZE(len); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 994 | } |
Victor Stinner | 5216e6d | 2010-06-08 21:45:51 +0000 | [diff] [blame] | 995 | else |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 996 | return converterr(c == 'Z' ? "str or None" : "str", |
| 997 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 998 | format++; |
| 999 | } else { |
Serhiy Storchaka | d6e53da | 2015-04-19 21:11:30 +0300 | [diff] [blame] | 1000 | /* "u" or "Z" */ |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1001 | if (c == 'Z' && arg == Py_None) |
| 1002 | *p = NULL; |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 1003 | else if (PyUnicode_Check(arg)) { |
Victor Stinner | beac78b | 2011-10-11 21:55:01 +0200 | [diff] [blame] | 1004 | Py_ssize_t len; |
| 1005 | *p = PyUnicode_AsUnicodeAndSize(arg, &len); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1006 | if (*p == NULL) |
| 1007 | RETURN_ERR_OCCURRED; |
Serhiy Storchaka | d8a1447 | 2014-09-06 20:07:17 +0300 | [diff] [blame] | 1008 | if (Py_UNICODE_strlen(*p) != (size_t)len) { |
| 1009 | PyErr_SetString(PyExc_ValueError, "embedded null character"); |
| 1010 | RETURN_ERR_OCCURRED; |
| 1011 | } |
Victor Stinner | 06e49dd | 2010-06-13 18:21:50 +0000 | [diff] [blame] | 1012 | } else |
Victor Stinner | 3c9e6e9 | 2010-06-24 22:31:12 +0000 | [diff] [blame] | 1013 | return converterr(c == 'Z' ? "str or None" : "str", |
| 1014 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1015 | } |
| 1016 | break; |
| 1017 | } |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1018 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1019 | case 'e': {/* encoded string */ |
| 1020 | char **buffer; |
| 1021 | const char *encoding; |
| 1022 | PyObject *s; |
| 1023 | int recode_strings; |
| 1024 | Py_ssize_t size; |
| 1025 | const char *ptr; |
Jeremy Hylton | 4819e97 | 2001-10-11 14:40:37 +0000 | [diff] [blame] | 1026 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1027 | /* Get 'e' parameter: the encoding name */ |
| 1028 | encoding = (const char *)va_arg(*p_va, const char *); |
| 1029 | if (encoding == NULL) |
| 1030 | encoding = PyUnicode_GetDefaultEncoding(); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1031 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1032 | /* Get output buffer parameter: |
| 1033 | 's' (recode all objects via Unicode) or |
| 1034 | 't' (only recode non-string objects) |
| 1035 | */ |
| 1036 | if (*format == 's') |
| 1037 | recode_strings = 1; |
| 1038 | else if (*format == 't') |
| 1039 | recode_strings = 0; |
| 1040 | else |
| 1041 | return converterr( |
| 1042 | "(unknown parser marker combination)", |
| 1043 | arg, msgbuf, bufsize); |
| 1044 | buffer = (char **)va_arg(*p_va, char **); |
| 1045 | format++; |
| 1046 | if (buffer == NULL) |
| 1047 | return converterr("(buffer is NULL)", |
| 1048 | arg, msgbuf, bufsize); |
Benjamin Peterson | 9edd2bd | 2008-08-27 00:31:37 +0000 | [diff] [blame] | 1049 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1050 | /* Encode object */ |
| 1051 | if (!recode_strings && |
| 1052 | (PyBytes_Check(arg) || PyByteArray_Check(arg))) { |
| 1053 | s = arg; |
| 1054 | Py_INCREF(s); |
| 1055 | if (PyObject_AsCharBuffer(s, &ptr, &size) < 0) |
| 1056 | return converterr("(AsCharBuffer failed)", |
| 1057 | arg, msgbuf, bufsize); |
| 1058 | } |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame^] | 1059 | else if (PyUnicode_Check(arg)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1060 | /* Encode object; use default error handling */ |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame^] | 1061 | s = PyUnicode_AsEncodedString(arg, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1062 | encoding, |
| 1063 | NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1064 | if (s == NULL) |
| 1065 | return converterr("(encoding failed)", |
| 1066 | arg, msgbuf, bufsize); |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame^] | 1067 | assert(PyBytes_Check(s)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1068 | size = PyBytes_GET_SIZE(s); |
| 1069 | ptr = PyBytes_AS_STRING(s); |
| 1070 | if (ptr == NULL) |
| 1071 | ptr = ""; |
| 1072 | } |
Serhiy Storchaka | 21a663e | 2016-04-13 15:37:23 +0300 | [diff] [blame^] | 1073 | else { |
| 1074 | return converterr( |
| 1075 | recode_strings ? "str" : "str, bytes or bytearray", |
| 1076 | arg, msgbuf, bufsize); |
| 1077 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1078 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1079 | /* Write output; output is guaranteed to be 0-terminated */ |
| 1080 | if (*format == '#') { |
| 1081 | /* Using buffer length parameter '#': |
| 1082 | |
| 1083 | - if *buffer is NULL, a new buffer of the |
| 1084 | needed size is allocated and the data |
| 1085 | copied into it; *buffer is updated to point |
| 1086 | to the new buffer; the caller is |
| 1087 | responsible for PyMem_Free()ing it after |
| 1088 | usage |
| 1089 | |
| 1090 | - if *buffer is not NULL, the data is |
| 1091 | copied to *buffer; *buffer_len has to be |
| 1092 | set to the size of the buffer on input; |
| 1093 | buffer overflow is signalled with an error; |
| 1094 | buffer has to provide enough room for the |
| 1095 | encoded string plus the trailing 0-byte |
| 1096 | |
| 1097 | - in both cases, *buffer_len is updated to |
| 1098 | the size of the buffer /excluding/ the |
| 1099 | trailing 0-byte |
| 1100 | |
| 1101 | */ |
| 1102 | FETCH_SIZE; |
| 1103 | |
| 1104 | format++; |
| 1105 | if (q == NULL && q2 == NULL) { |
| 1106 | Py_DECREF(s); |
| 1107 | return converterr( |
| 1108 | "(buffer_len is NULL)", |
| 1109 | arg, msgbuf, bufsize); |
| 1110 | } |
| 1111 | if (*buffer == NULL) { |
| 1112 | *buffer = PyMem_NEW(char, size + 1); |
| 1113 | if (*buffer == NULL) { |
| 1114 | Py_DECREF(s); |
Victor Stinner | 2872e5b | 2010-06-06 20:38:02 +0000 | [diff] [blame] | 1115 | PyErr_NoMemory(); |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1116 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1117 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1118 | if (addcleanup(*buffer, freelist, cleanup_ptr)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1119 | Py_DECREF(s); |
| 1120 | return converterr( |
| 1121 | "(cleanup problem)", |
| 1122 | arg, msgbuf, bufsize); |
| 1123 | } |
| 1124 | } else { |
| 1125 | if (size + 1 > BUFFER_LEN) { |
| 1126 | Py_DECREF(s); |
Serhiy Storchaka | 4cd63ef | 2016-02-08 01:22:47 +0200 | [diff] [blame] | 1127 | PyErr_Format(PyExc_ValueError, |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1128 | "encoded string too long " |
| 1129 | "(%zd, maximum length %zd)", |
| 1130 | (Py_ssize_t)size, (Py_ssize_t)(BUFFER_LEN-1)); |
| 1131 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1132 | } |
| 1133 | } |
| 1134 | memcpy(*buffer, ptr, size+1); |
| 1135 | STORE_SIZE(size); |
| 1136 | } else { |
| 1137 | /* Using a 0-terminated buffer: |
| 1138 | |
| 1139 | - the encoded string has to be 0-terminated |
| 1140 | for this variant to work; if it is not, an |
| 1141 | error raised |
| 1142 | |
| 1143 | - a new buffer of the needed size is |
| 1144 | allocated and the data copied into it; |
| 1145 | *buffer is updated to point to the new |
| 1146 | buffer; the caller is responsible for |
| 1147 | PyMem_Free()ing it after usage |
| 1148 | |
| 1149 | */ |
| 1150 | if ((Py_ssize_t)strlen(ptr) != size) { |
| 1151 | Py_DECREF(s); |
| 1152 | return converterr( |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1153 | "encoded string without null bytes", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1154 | arg, msgbuf, bufsize); |
| 1155 | } |
| 1156 | *buffer = PyMem_NEW(char, size + 1); |
| 1157 | if (*buffer == NULL) { |
| 1158 | Py_DECREF(s); |
Victor Stinner | 2872e5b | 2010-06-06 20:38:02 +0000 | [diff] [blame] | 1159 | PyErr_NoMemory(); |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1160 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1161 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1162 | if (addcleanup(*buffer, freelist, cleanup_ptr)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1163 | Py_DECREF(s); |
| 1164 | return converterr("(cleanup problem)", |
| 1165 | arg, msgbuf, bufsize); |
| 1166 | } |
| 1167 | memcpy(*buffer, ptr, size+1); |
| 1168 | } |
| 1169 | Py_DECREF(s); |
| 1170 | break; |
| 1171 | } |
| 1172 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1173 | case 'S': { /* PyBytes object */ |
| 1174 | PyObject **p = va_arg(*p_va, PyObject **); |
| 1175 | if (PyBytes_Check(arg)) |
| 1176 | *p = arg; |
| 1177 | else |
| 1178 | return converterr("bytes", arg, msgbuf, bufsize); |
| 1179 | break; |
| 1180 | } |
| 1181 | |
| 1182 | case 'Y': { /* PyByteArray object */ |
| 1183 | PyObject **p = va_arg(*p_va, PyObject **); |
| 1184 | if (PyByteArray_Check(arg)) |
| 1185 | *p = arg; |
| 1186 | else |
Victor Stinner | 5216e6d | 2010-06-08 21:45:51 +0000 | [diff] [blame] | 1187 | return converterr("bytearray", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1188 | break; |
| 1189 | } |
| 1190 | |
| 1191 | case 'U': { /* PyUnicode object */ |
| 1192 | PyObject **p = va_arg(*p_va, PyObject **); |
Victor Stinner | a1b0c9f | 2012-05-29 12:30:29 +0200 | [diff] [blame] | 1193 | if (PyUnicode_Check(arg)) { |
| 1194 | if (PyUnicode_READY(arg) == -1) |
| 1195 | RETURN_ERR_OCCURRED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1196 | *p = arg; |
Victor Stinner | a1b0c9f | 2012-05-29 12:30:29 +0200 | [diff] [blame] | 1197 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1198 | else |
| 1199 | return converterr("str", arg, msgbuf, bufsize); |
| 1200 | break; |
| 1201 | } |
| 1202 | |
| 1203 | case 'O': { /* object */ |
| 1204 | PyTypeObject *type; |
| 1205 | PyObject **p; |
| 1206 | if (*format == '!') { |
| 1207 | type = va_arg(*p_va, PyTypeObject*); |
| 1208 | p = va_arg(*p_va, PyObject **); |
| 1209 | format++; |
| 1210 | if (PyType_IsSubtype(arg->ob_type, type)) |
| 1211 | *p = arg; |
| 1212 | else |
| 1213 | return converterr(type->tp_name, arg, msgbuf, bufsize); |
| 1214 | |
| 1215 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1216 | else if (*format == '&') { |
| 1217 | typedef int (*converter)(PyObject *, void *); |
| 1218 | converter convert = va_arg(*p_va, converter); |
| 1219 | void *addr = va_arg(*p_va, void *); |
| 1220 | int res; |
| 1221 | format++; |
| 1222 | if (! (res = (*convert)(arg, addr))) |
| 1223 | return converterr("(unspecified)", |
| 1224 | arg, msgbuf, bufsize); |
| 1225 | if (res == Py_CLEANUP_SUPPORTED && |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1226 | addcleanup(addr, freelist, convert) == -1) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1227 | return converterr("(cleanup problem)", |
| 1228 | arg, msgbuf, bufsize); |
| 1229 | } |
| 1230 | else { |
| 1231 | p = va_arg(*p_va, PyObject **); |
| 1232 | *p = arg; |
| 1233 | } |
| 1234 | break; |
| 1235 | } |
| 1236 | |
| 1237 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1238 | case 'w': { /* "w*": memory buffer, read-write access */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1239 | void **p = va_arg(*p_va, void **); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1240 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1241 | if (*format != '*') |
| 1242 | return converterr( |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1243 | "(invalid use of 'w' format character)", |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1244 | arg, msgbuf, bufsize); |
| 1245 | format++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1246 | |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1247 | /* Caller is interested in Py_buffer, and the object |
| 1248 | supports it directly. */ |
| 1249 | if (PyObject_GetBuffer(arg, (Py_buffer*)p, PyBUF_WRITABLE) < 0) { |
| 1250 | PyErr_Clear(); |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1251 | return converterr("read-write bytes-like object", |
| 1252 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1253 | } |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1254 | if (!PyBuffer_IsContiguous((Py_buffer*)p, 'C')) { |
| 1255 | PyBuffer_Release((Py_buffer*)p); |
| 1256 | return converterr("contiguous buffer", arg, msgbuf, bufsize); |
| 1257 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1258 | if (addcleanup(p, freelist, cleanup_buffer)) { |
Victor Stinner | 25e8ec4 | 2010-06-25 00:02:38 +0000 | [diff] [blame] | 1259 | return converterr( |
| 1260 | "(cleanup problem)", |
| 1261 | arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1262 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1263 | break; |
| 1264 | } |
| 1265 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1266 | default: |
Serhiy Storchaka | c4b813d | 2016-02-08 01:06:11 +0200 | [diff] [blame] | 1267 | return converterr("(impossible<bad format char>)", arg, msgbuf, bufsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1268 | |
| 1269 | } |
| 1270 | |
| 1271 | *p_format = format; |
| 1272 | return NULL; |
Victor Stinner | 6ab8e82 | 2011-01-04 11:16:49 +0000 | [diff] [blame] | 1273 | |
| 1274 | #undef FETCH_SIZE |
| 1275 | #undef STORE_SIZE |
| 1276 | #undef BUFFER_LEN |
| 1277 | #undef RETURN_ERR_OCCURRED |
Guido van Rossum | fe3f1a2 | 1994-09-29 09:42:55 +0000 | [diff] [blame] | 1278 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1279 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1280 | static Py_ssize_t |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1281 | convertbuffer(PyObject *arg, void **p, const char **errmsg) |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1282 | { |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1283 | PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1284 | Py_ssize_t count; |
| 1285 | Py_buffer view; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 1286 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1287 | *errmsg = NULL; |
| 1288 | *p = NULL; |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1289 | if (pb != NULL && pb->bf_releasebuffer != NULL) { |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1290 | *errmsg = "read-only bytes-like object"; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1291 | return -1; |
| 1292 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 1293 | |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1294 | if (getbuffer(arg, &view, errmsg) < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1295 | return -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1296 | count = view.len; |
| 1297 | *p = view.buf; |
| 1298 | PyBuffer_Release(&view); |
| 1299 | return count; |
Jeremy Hylton | 1cb7aa3 | 2001-05-29 17:37:05 +0000 | [diff] [blame] | 1300 | } |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1301 | |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1302 | static int |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1303 | getbuffer(PyObject *arg, Py_buffer *view, const char **errmsg) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1304 | { |
Victor Stinner | 8182b71 | 2010-07-28 00:40:58 +0000 | [diff] [blame] | 1305 | if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) { |
R David Murray | 861470c | 2014-10-05 11:47:01 -0400 | [diff] [blame] | 1306 | *errmsg = "bytes-like object"; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1307 | return -1; |
| 1308 | } |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1309 | if (!PyBuffer_IsContiguous(view, 'C')) { |
Victor Stinner | 21e0948 | 2010-06-24 22:57:10 +0000 | [diff] [blame] | 1310 | PyBuffer_Release(view); |
Victor Stinner | 5cb6239 | 2010-06-06 20:27:51 +0000 | [diff] [blame] | 1311 | *errmsg = "contiguous buffer"; |
| 1312 | return -1; |
| 1313 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1314 | return 0; |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1315 | } |
| 1316 | |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1317 | /* Support for keyword arguments donated by |
| 1318 | Geoff Philbrick <philbric@delphi.hks.com> */ |
| 1319 | |
Tim Peters | f8cd3e8 | 2001-10-27 04:26:57 +0000 | [diff] [blame] | 1320 | /* Return false (0) for error, else true. */ |
Fred Drake | 563dfc2 | 2001-10-23 14:41:08 +0000 | [diff] [blame] | 1321 | int |
| 1322 | PyArg_ParseTupleAndKeywords(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1323 | PyObject *keywords, |
| 1324 | const char *format, |
| 1325 | char **kwlist, ...) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1326 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1327 | int retval; |
| 1328 | va_list va; |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1329 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1330 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1331 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1332 | format == NULL || |
| 1333 | kwlist == NULL) |
| 1334 | { |
| 1335 | PyErr_BadInternalCall(); |
| 1336 | return 0; |
| 1337 | } |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1338 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1339 | va_start(va, kwlist); |
| 1340 | retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0); |
| 1341 | va_end(va); |
| 1342 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1343 | } |
| 1344 | |
| 1345 | int |
| 1346 | _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1347 | PyObject *keywords, |
| 1348 | const char *format, |
| 1349 | char **kwlist, ...) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1350 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1351 | int retval; |
| 1352 | va_list va; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1353 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1354 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1355 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1356 | format == NULL || |
| 1357 | kwlist == NULL) |
| 1358 | { |
| 1359 | PyErr_BadInternalCall(); |
| 1360 | return 0; |
| 1361 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1362 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1363 | va_start(va, kwlist); |
| 1364 | retval = vgetargskeywords(args, keywords, format, |
| 1365 | kwlist, &va, FLAG_SIZE_T); |
| 1366 | va_end(va); |
| 1367 | return retval; |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1368 | } |
| 1369 | |
| 1370 | |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1371 | int |
| 1372 | PyArg_VaParseTupleAndKeywords(PyObject *args, |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1373 | PyObject *keywords, |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1374 | const char *format, |
Martin v. Löwis | 15e6274 | 2006-02-27 16:46:16 +0000 | [diff] [blame] | 1375 | char **kwlist, va_list va) |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1376 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1377 | int retval; |
| 1378 | va_list lva; |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1379 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1380 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1381 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1382 | format == NULL || |
| 1383 | kwlist == NULL) |
| 1384 | { |
| 1385 | PyErr_BadInternalCall(); |
| 1386 | return 0; |
| 1387 | } |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1388 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 1389 | Py_VA_COPY(lva, va); |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1390 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1391 | retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0); |
| 1392 | return retval; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1393 | } |
| 1394 | |
| 1395 | int |
| 1396 | _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1397 | PyObject *keywords, |
| 1398 | const char *format, |
| 1399 | char **kwlist, va_list va) |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1400 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1401 | int retval; |
| 1402 | va_list lva; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1403 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1404 | if ((args == NULL || !PyTuple_Check(args)) || |
| 1405 | (keywords != NULL && !PyDict_Check(keywords)) || |
| 1406 | format == NULL || |
| 1407 | kwlist == NULL) |
| 1408 | { |
| 1409 | PyErr_BadInternalCall(); |
| 1410 | return 0; |
| 1411 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1412 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 1413 | Py_VA_COPY(lva, va); |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1414 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1415 | retval = vgetargskeywords(args, keywords, format, |
| 1416 | kwlist, &lva, FLAG_SIZE_T); |
| 1417 | return retval; |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1418 | } |
| 1419 | |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1420 | int |
| 1421 | PyArg_ValidateKeywordArguments(PyObject *kwargs) |
| 1422 | { |
Benjamin Peterson | f609654 | 2010-11-17 22:33:12 +0000 | [diff] [blame] | 1423 | if (!PyDict_Check(kwargs)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1424 | PyErr_BadInternalCall(); |
| 1425 | return 0; |
| 1426 | } |
| 1427 | if (!_PyDict_HasOnlyStringKeys(kwargs)) { |
| 1428 | PyErr_SetString(PyExc_TypeError, |
| 1429 | "keyword arguments must be strings"); |
| 1430 | return 0; |
| 1431 | } |
| 1432 | return 1; |
Benjamin Peterson | fb88636 | 2010-04-24 18:21:17 +0000 | [diff] [blame] | 1433 | } |
| 1434 | |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1435 | #define IS_END_OF_FORMAT(c) (c == '\0' || c == ';' || c == ':') |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1436 | |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1437 | static int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1438 | vgetargskeywords(PyObject *args, PyObject *keywords, const char *format, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1439 | char **kwlist, va_list *p_va, int flags) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1440 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1441 | char msgbuf[512]; |
| 1442 | int levels[32]; |
| 1443 | const char *fname, *msg, *custom_msg, *keyword; |
| 1444 | int min = INT_MAX; |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1445 | int max = INT_MAX; |
Victor Stinner | 74387f5 | 2013-11-18 01:21:12 +0100 | [diff] [blame] | 1446 | int i, len; |
| 1447 | Py_ssize_t nargs, nkeywords; |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1448 | PyObject *current_arg; |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1449 | freelistentry_t static_entries[STATIC_FREELIST_ENTRIES]; |
Benjamin Peterson | 40be9e5 | 2014-02-11 10:09:27 -0500 | [diff] [blame] | 1450 | freelist_t freelist; |
| 1451 | |
| 1452 | freelist.entries = static_entries; |
| 1453 | freelist.first_available = 0; |
| 1454 | freelist.entries_malloced = 0; |
Tim Peters | f4331c1 | 2001-10-27 00:17:34 +0000 | [diff] [blame] | 1455 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1456 | assert(args != NULL && PyTuple_Check(args)); |
| 1457 | assert(keywords == NULL || PyDict_Check(keywords)); |
| 1458 | assert(format != NULL); |
| 1459 | assert(kwlist != NULL); |
| 1460 | assert(p_va != NULL); |
Tim Peters | 45772cd | 2001-10-27 03:58:40 +0000 | [diff] [blame] | 1461 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1462 | /* grab the function name or custom error msg first (mutually exclusive) */ |
| 1463 | fname = strchr(format, ':'); |
| 1464 | if (fname) { |
| 1465 | fname++; |
| 1466 | custom_msg = NULL; |
| 1467 | } |
| 1468 | else { |
| 1469 | custom_msg = strchr(format,';'); |
| 1470 | if (custom_msg) |
| 1471 | custom_msg++; |
| 1472 | } |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1473 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1474 | /* scan kwlist and get greatest possible nbr of args */ |
| 1475 | for (len=0; kwlist[len]; len++) |
| 1476 | continue; |
Tim Peters | f8cd3e8 | 2001-10-27 04:26:57 +0000 | [diff] [blame] | 1477 | |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1478 | if (len > STATIC_FREELIST_ENTRIES) { |
| 1479 | freelist.entries = PyMem_NEW(freelistentry_t, len); |
| 1480 | if (freelist.entries == NULL) { |
| 1481 | PyErr_NoMemory(); |
| 1482 | return 0; |
| 1483 | } |
| 1484 | freelist.entries_malloced = 1; |
Benjamin Peterson | 7ed6727 | 2012-03-16 12:21:02 -0500 | [diff] [blame] | 1485 | } |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1486 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1487 | nargs = PyTuple_GET_SIZE(args); |
| 1488 | nkeywords = (keywords == NULL) ? 0 : PyDict_Size(keywords); |
| 1489 | if (nargs + nkeywords > len) { |
Victor Stinner | 6ced7c4 | 2011-03-21 18:15:42 +0100 | [diff] [blame] | 1490 | PyErr_Format(PyExc_TypeError, |
Victor Stinner | cb29ec5 | 2013-11-18 02:05:31 +0100 | [diff] [blame] | 1491 | "%s%s takes at most %d argument%s (%zd given)", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1492 | (fname == NULL) ? "function" : fname, |
| 1493 | (fname == NULL) ? "" : "()", |
| 1494 | len, |
| 1495 | (len == 1) ? "" : "s", |
| 1496 | nargs + nkeywords); |
Benjamin Peterson | 01feaec | 2012-03-16 13:25:58 -0500 | [diff] [blame] | 1497 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1498 | } |
Tim Peters | c2f0112 | 2001-10-27 07:25:06 +0000 | [diff] [blame] | 1499 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1500 | /* convert tuple args and keyword args in same loop, using kwlist to drive process */ |
| 1501 | for (i = 0; i < len; i++) { |
| 1502 | keyword = kwlist[i]; |
| 1503 | if (*format == '|') { |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1504 | if (min != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1505 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1506 | "Invalid format string (| specified twice)"); |
| 1507 | return cleanreturn(0, &freelist); |
| 1508 | } |
| 1509 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1510 | min = i; |
| 1511 | format++; |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1512 | |
| 1513 | if (max != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1514 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1515 | "Invalid format string ($ before |)"); |
| 1516 | return cleanreturn(0, &freelist); |
| 1517 | } |
| 1518 | } |
| 1519 | if (*format == '$') { |
| 1520 | if (max != INT_MAX) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1521 | PyErr_SetString(PyExc_SystemError, |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1522 | "Invalid format string ($ specified twice)"); |
| 1523 | return cleanreturn(0, &freelist); |
| 1524 | } |
| 1525 | |
| 1526 | max = i; |
| 1527 | format++; |
| 1528 | |
| 1529 | if (max < nargs) { |
| 1530 | PyErr_Format(PyExc_TypeError, |
| 1531 | "Function takes %s %d positional arguments" |
| 1532 | " (%d given)", |
| 1533 | (min != INT_MAX) ? "at most" : "exactly", |
| 1534 | max, nargs); |
| 1535 | return cleanreturn(0, &freelist); |
| 1536 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1537 | } |
| 1538 | if (IS_END_OF_FORMAT(*format)) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1539 | PyErr_Format(PyExc_SystemError, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1540 | "More keyword list entries (%d) than " |
| 1541 | "format specifiers (%d)", len, i); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1542 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1543 | } |
| 1544 | current_arg = NULL; |
| 1545 | if (nkeywords) { |
| 1546 | current_arg = PyDict_GetItemString(keywords, keyword); |
| 1547 | } |
| 1548 | if (current_arg) { |
| 1549 | --nkeywords; |
| 1550 | if (i < nargs) { |
| 1551 | /* arg present in tuple and in dict */ |
| 1552 | PyErr_Format(PyExc_TypeError, |
| 1553 | "Argument given by name ('%s') " |
| 1554 | "and position (%d)", |
| 1555 | keyword, i+1); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1556 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1557 | } |
| 1558 | } |
| 1559 | else if (nkeywords && PyErr_Occurred()) |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1560 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1561 | else if (i < nargs) |
| 1562 | current_arg = PyTuple_GET_ITEM(args, i); |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1563 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1564 | if (current_arg) { |
| 1565 | msg = convertitem(current_arg, &format, p_va, flags, |
| 1566 | levels, msgbuf, sizeof(msgbuf), &freelist); |
| 1567 | if (msg) { |
| 1568 | seterror(i+1, msg, levels, fname, custom_msg); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1569 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1570 | } |
| 1571 | continue; |
| 1572 | } |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1573 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1574 | if (i < min) { |
| 1575 | PyErr_Format(PyExc_TypeError, "Required argument " |
| 1576 | "'%s' (pos %d) not found", |
| 1577 | keyword, i+1); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1578 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1579 | } |
| 1580 | /* current code reports success when all required args |
| 1581 | * fulfilled and no keyword args left, with no further |
| 1582 | * validation. XXX Maybe skip this in debug build ? |
| 1583 | */ |
| 1584 | if (!nkeywords) |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1585 | return cleanreturn(1, &freelist); |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1586 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1587 | /* We are into optional args, skip thru to any remaining |
| 1588 | * keyword args */ |
| 1589 | msg = skipitem(&format, p_va, flags); |
| 1590 | if (msg) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1591 | PyErr_Format(PyExc_SystemError, "%s: '%s'", msg, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1592 | format); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1593 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1594 | } |
| 1595 | } |
Tim Peters | b054be4 | 2001-10-27 05:07:41 +0000 | [diff] [blame] | 1596 | |
Larry Hastings | 83a9f48 | 2012-03-20 20:06:16 +0000 | [diff] [blame] | 1597 | if (!IS_END_OF_FORMAT(*format) && (*format != '|') && (*format != '$')) { |
Serhiy Storchaka | a9725f8 | 2016-02-11 12:41:40 +0200 | [diff] [blame] | 1598 | PyErr_Format(PyExc_SystemError, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1599 | "more argument specifiers than keyword list entries " |
| 1600 | "(remaining format:'%s')", format); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1601 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1602 | } |
Tim Peters | c2f0112 | 2001-10-27 07:25:06 +0000 | [diff] [blame] | 1603 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1604 | /* make sure there are no extraneous keyword arguments */ |
| 1605 | if (nkeywords > 0) { |
| 1606 | PyObject *key, *value; |
| 1607 | Py_ssize_t pos = 0; |
| 1608 | while (PyDict_Next(keywords, &pos, &key, &value)) { |
| 1609 | int match = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1610 | if (!PyUnicode_Check(key)) { |
| 1611 | PyErr_SetString(PyExc_TypeError, |
| 1612 | "keywords must be strings"); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1613 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1614 | } |
Antoine Pitrou | 7056cb2 | 2013-02-17 01:04:57 +0100 | [diff] [blame] | 1615 | for (i = 0; i < len; i++) { |
| 1616 | if (!PyUnicode_CompareWithASCIIString(key, kwlist[i])) { |
| 1617 | match = 1; |
| 1618 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1619 | } |
| 1620 | } |
| 1621 | if (!match) { |
| 1622 | PyErr_Format(PyExc_TypeError, |
Victor Stinner | 93b5513 | 2010-05-19 00:54:06 +0000 | [diff] [blame] | 1623 | "'%U' is an invalid keyword " |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1624 | "argument for this function", |
Victor Stinner | 93b5513 | 2010-05-19 00:54:06 +0000 | [diff] [blame] | 1625 | key); |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1626 | return cleanreturn(0, &freelist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1627 | } |
| 1628 | } |
| 1629 | } |
| 1630 | |
Jean-Paul Calderone | c961b4a | 2012-03-16 08:51:42 -0400 | [diff] [blame] | 1631 | return cleanreturn(1, &freelist); |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1632 | } |
| 1633 | |
| 1634 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1635 | static const char * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1636 | skipitem(const char **p_format, va_list *p_va, int flags) |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1637 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1638 | const char *format = *p_format; |
| 1639 | char c = *format++; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1640 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1641 | switch (c) { |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 1642 | |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 1643 | /* |
| 1644 | * codes that take a single data pointer as an argument |
| 1645 | * (the type of the pointer is irrelevant) |
| 1646 | */ |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 1647 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1648 | case 'b': /* byte -- very short int */ |
| 1649 | case 'B': /* byte as bitfield */ |
| 1650 | case 'h': /* short int */ |
| 1651 | case 'H': /* short int as bitfield */ |
| 1652 | case 'i': /* int */ |
| 1653 | case 'I': /* int sized bitfield */ |
| 1654 | case 'l': /* long int */ |
| 1655 | case 'k': /* long int sized bitfield */ |
Guido van Rossum | 3dbba6e | 1999-01-25 21:48:56 +0000 | [diff] [blame] | 1656 | #ifdef HAVE_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1657 | case 'L': /* PY_LONG_LONG */ |
| 1658 | case 'K': /* PY_LONG_LONG sized bitfield */ |
Guido van Rossum | 1a8791e | 1998-08-04 22:46:29 +0000 | [diff] [blame] | 1659 | #endif |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 1660 | case 'n': /* Py_ssize_t */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1661 | case 'f': /* float */ |
| 1662 | case 'd': /* double */ |
| 1663 | case 'D': /* complex double */ |
| 1664 | case 'c': /* char */ |
| 1665 | case 'C': /* unicode char */ |
Larry Hastings | 10ba07a | 2012-05-07 02:44:50 -0700 | [diff] [blame] | 1666 | case 'p': /* boolean predicate */ |
Larry Hastings | a347901 | 2012-05-08 23:52:03 -0700 | [diff] [blame] | 1667 | case 'S': /* string object */ |
| 1668 | case 'Y': /* string object */ |
| 1669 | case 'U': /* unicode string object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1670 | { |
| 1671 | (void) va_arg(*p_va, void *); |
| 1672 | break; |
| 1673 | } |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1674 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1675 | /* string codes */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1676 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1677 | case 'e': /* string with encoding */ |
| 1678 | { |
| 1679 | (void) va_arg(*p_va, const char *); |
| 1680 | if (!(*format == 's' || *format == 't')) |
| 1681 | /* after 'e', only 's' and 't' is allowed */ |
| 1682 | goto err; |
| 1683 | format++; |
| 1684 | /* explicit fallthrough to string cases */ |
| 1685 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1686 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1687 | case 's': /* string */ |
| 1688 | case 'z': /* string or None */ |
| 1689 | case 'y': /* bytes */ |
| 1690 | case 'u': /* unicode string */ |
Larry Hastings | d9e4a41 | 2012-05-08 03:51:18 -0700 | [diff] [blame] | 1691 | case 'Z': /* unicode string or None */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1692 | case 'w': /* buffer, read-write */ |
| 1693 | { |
| 1694 | (void) va_arg(*p_va, char **); |
| 1695 | if (*format == '#') { |
| 1696 | if (flags & FLAG_SIZE_T) |
| 1697 | (void) va_arg(*p_va, Py_ssize_t *); |
| 1698 | else |
| 1699 | (void) va_arg(*p_va, int *); |
| 1700 | format++; |
| 1701 | } else if ((c == 's' || c == 'z' || c == 'y') && *format == '*') { |
| 1702 | format++; |
| 1703 | } |
| 1704 | break; |
| 1705 | } |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 1706 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1707 | case 'O': /* object */ |
| 1708 | { |
| 1709 | if (*format == '!') { |
| 1710 | format++; |
| 1711 | (void) va_arg(*p_va, PyTypeObject*); |
| 1712 | (void) va_arg(*p_va, PyObject **); |
| 1713 | } |
| 1714 | else if (*format == '&') { |
| 1715 | typedef int (*converter)(PyObject *, void *); |
| 1716 | (void) va_arg(*p_va, converter); |
| 1717 | (void) va_arg(*p_va, void *); |
| 1718 | format++; |
| 1719 | } |
| 1720 | else { |
| 1721 | (void) va_arg(*p_va, PyObject **); |
| 1722 | } |
| 1723 | break; |
| 1724 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1725 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1726 | case '(': /* bypass tuple, not handled at all previously */ |
| 1727 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1728 | const char *msg; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1729 | for (;;) { |
| 1730 | if (*format==')') |
| 1731 | break; |
| 1732 | if (IS_END_OF_FORMAT(*format)) |
| 1733 | return "Unmatched left paren in format " |
| 1734 | "string"; |
| 1735 | msg = skipitem(&format, p_va, flags); |
| 1736 | if (msg) |
| 1737 | return msg; |
| 1738 | } |
| 1739 | format++; |
| 1740 | break; |
| 1741 | } |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1742 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1743 | case ')': |
| 1744 | return "Unmatched right paren in format string"; |
Christian Heimes | 380f7f2 | 2008-02-28 11:19:05 +0000 | [diff] [blame] | 1745 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1746 | default: |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 1747 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1748 | return "impossible<bad format char>"; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1749 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1750 | } |
Georg Brandl | 6dd1461 | 2005-09-14 19:29:53 +0000 | [diff] [blame] | 1751 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1752 | *p_format = format; |
| 1753 | return NULL; |
Guido van Rossum | aa35465 | 1996-08-19 19:32:04 +0000 | [diff] [blame] | 1754 | } |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 1755 | |
| 1756 | |
| 1757 | int |
Martin v. Löwis | 7624674 | 2006-03-01 04:06:10 +0000 | [diff] [blame] | 1758 | 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] | 1759 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1760 | Py_ssize_t i, l; |
| 1761 | PyObject **o; |
| 1762 | va_list vargs; |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 1763 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1764 | assert(min >= 0); |
| 1765 | assert(min <= max); |
| 1766 | if (!PyTuple_Check(args)) { |
| 1767 | PyErr_SetString(PyExc_SystemError, |
| 1768 | "PyArg_UnpackTuple() argument list is not a tuple"); |
| 1769 | return 0; |
| 1770 | } |
| 1771 | l = PyTuple_GET_SIZE(args); |
| 1772 | if (l < min) { |
| 1773 | if (name != NULL) |
| 1774 | PyErr_Format( |
| 1775 | PyExc_TypeError, |
| 1776 | "%s expected %s%zd arguments, got %zd", |
| 1777 | name, (min == max ? "" : "at least "), min, l); |
| 1778 | else |
| 1779 | PyErr_Format( |
| 1780 | PyExc_TypeError, |
| 1781 | "unpacked tuple should have %s%zd elements," |
| 1782 | " but has %zd", |
| 1783 | (min == max ? "" : "at least "), min, l); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1784 | return 0; |
| 1785 | } |
Raymond Hettinger | 9423023 | 2016-03-26 03:02:48 -0700 | [diff] [blame] | 1786 | if (l == 0) |
| 1787 | return 1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1788 | if (l > max) { |
| 1789 | if (name != NULL) |
| 1790 | PyErr_Format( |
| 1791 | PyExc_TypeError, |
| 1792 | "%s expected %s%zd arguments, got %zd", |
| 1793 | name, (min == max ? "" : "at most "), max, l); |
| 1794 | else |
| 1795 | PyErr_Format( |
| 1796 | PyExc_TypeError, |
| 1797 | "unpacked tuple should have %s%zd elements," |
| 1798 | " but has %zd", |
| 1799 | (min == max ? "" : "at most "), max, l); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1800 | return 0; |
| 1801 | } |
Raymond Hettinger | 9423023 | 2016-03-26 03:02:48 -0700 | [diff] [blame] | 1802 | |
| 1803 | #ifdef HAVE_STDARG_PROTOTYPES |
| 1804 | va_start(vargs, max); |
| 1805 | #else |
| 1806 | va_start(vargs); |
| 1807 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1808 | for (i = 0; i < l; i++) { |
| 1809 | o = va_arg(vargs, PyObject **); |
| 1810 | *o = PyTuple_GET_ITEM(args, i); |
| 1811 | } |
| 1812 | va_end(vargs); |
| 1813 | return 1; |
Fred Drake | e4616e6 | 2001-10-23 21:09:29 +0000 | [diff] [blame] | 1814 | } |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 1815 | |
| 1816 | |
| 1817 | /* For type constructors that don't take keyword args |
| 1818 | * |
Larry Hastings | b7ccb20 | 2014-01-18 23:50:21 -0800 | [diff] [blame] | 1819 | * Sets a TypeError and returns 0 if the args/kwargs is |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1820 | * not empty, returns 1 otherwise |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 1821 | */ |
| 1822 | int |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1823 | _PyArg_NoKeywords(const char *funcname, PyObject *kw) |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 1824 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1825 | if (kw == NULL) |
| 1826 | return 1; |
| 1827 | if (!PyDict_CheckExact(kw)) { |
| 1828 | PyErr_BadInternalCall(); |
| 1829 | return 0; |
| 1830 | } |
| 1831 | if (PyDict_Size(kw) == 0) |
| 1832 | return 1; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1833 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1834 | PyErr_Format(PyExc_TypeError, "%s does not take keyword arguments", |
| 1835 | funcname); |
| 1836 | return 0; |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 1837 | } |
Larry Hastings | b7ccb20 | 2014-01-18 23:50:21 -0800 | [diff] [blame] | 1838 | |
| 1839 | |
| 1840 | int |
| 1841 | _PyArg_NoPositional(const char *funcname, PyObject *args) |
| 1842 | { |
| 1843 | if (args == NULL) |
| 1844 | return 1; |
| 1845 | if (!PyTuple_CheckExact(args)) { |
| 1846 | PyErr_BadInternalCall(); |
| 1847 | return 0; |
| 1848 | } |
| 1849 | if (PyTuple_GET_SIZE(args) == 0) |
| 1850 | return 1; |
| 1851 | |
| 1852 | PyErr_Format(PyExc_TypeError, "%s does not take positional arguments", |
| 1853 | funcname); |
| 1854 | return 0; |
| 1855 | } |
| 1856 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 1857 | #ifdef __cplusplus |
| 1858 | }; |
| 1859 | #endif |