Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1 | |
| 2 | /* Write Python objects to files and read them back. |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 3 | This is primarily intended for writing and reading compiled Python code, |
| 4 | even though dicts, lists, sets and frozensets, not commonly seen in |
| 5 | code objects, are supported. |
| 6 | Version 3 of this protocol properly supports circular links |
| 7 | and sharing. */ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 8 | |
Thomas Wouters | 695934a | 2006-03-01 23:49:13 +0000 | [diff] [blame] | 9 | #define PY_SSIZE_T_CLEAN |
| 10 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 11 | #include "Python.h" |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 12 | #include "longintrepr.h" |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 13 | #include "code.h" |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 14 | #include "marshal.h" |
| 15 | |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 16 | #define ABS(x) ((x) < 0 ? -(x) : (x)) |
| 17 | |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 18 | /* High water mark to determine when the marshalled object is dangerously deep |
| 19 | * and risks coring the interpreter. When the object stack gets this deep, |
| 20 | * raise an exception instead of continuing. |
Guido van Rossum | 63175a1 | 2007-08-29 20:39:13 +0000 | [diff] [blame] | 21 | * On Windows debug builds, reduce this value. |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 22 | */ |
Guido van Rossum | 63175a1 | 2007-08-29 20:39:13 +0000 | [diff] [blame] | 23 | #if defined(MS_WINDOWS) && defined(_DEBUG) |
| 24 | #define MAX_MARSHAL_STACK_DEPTH 1500 |
| 25 | #else |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 26 | #define MAX_MARSHAL_STACK_DEPTH 2000 |
Guido van Rossum | 63175a1 | 2007-08-29 20:39:13 +0000 | [diff] [blame] | 27 | #endif |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 28 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 29 | #define TYPE_NULL '0' |
| 30 | #define TYPE_NONE 'N' |
| 31 | #define TYPE_FALSE 'F' |
| 32 | #define TYPE_TRUE 'T' |
| 33 | #define TYPE_STOPITER 'S' |
| 34 | #define TYPE_ELLIPSIS '.' |
| 35 | #define TYPE_INT 'i' |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 36 | #define TYPE_FLOAT 'f' |
| 37 | #define TYPE_BINARY_FLOAT 'g' |
| 38 | #define TYPE_COMPLEX 'x' |
| 39 | #define TYPE_BINARY_COMPLEX 'y' |
| 40 | #define TYPE_LONG 'l' |
| 41 | #define TYPE_STRING 's' |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 42 | #define TYPE_INTERNED 't' |
| 43 | #define TYPE_REF 'r' |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 44 | #define TYPE_TUPLE '(' |
| 45 | #define TYPE_LIST '[' |
| 46 | #define TYPE_DICT '{' |
| 47 | #define TYPE_CODE 'c' |
| 48 | #define TYPE_UNICODE 'u' |
| 49 | #define TYPE_UNKNOWN '?' |
| 50 | #define TYPE_SET '<' |
| 51 | #define TYPE_FROZENSET '>' |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 52 | #define FLAG_REF '\x80' /* with a type, add obj to index */ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 53 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 54 | #define TYPE_ASCII 'a' |
| 55 | #define TYPE_ASCII_INTERNED 'A' |
| 56 | #define TYPE_SMALL_TUPLE ')' |
| 57 | #define TYPE_SHORT_ASCII 'z' |
| 58 | #define TYPE_SHORT_ASCII_INTERNED 'Z' |
| 59 | |
Eric Smith | b1a03cf | 2009-04-21 11:57:38 +0000 | [diff] [blame] | 60 | #define WFERR_OK 0 |
| 61 | #define WFERR_UNMARSHALLABLE 1 |
| 62 | #define WFERR_NESTEDTOODEEP 2 |
| 63 | #define WFERR_NOMEMORY 3 |
| 64 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 65 | typedef struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 66 | FILE *fp; |
| 67 | int error; /* see WFERR_* values */ |
| 68 | int depth; |
| 69 | /* If fp == NULL, the following are valid: */ |
Éric Araujo | 6c0ba44 | 2011-07-26 17:23:57 +0200 | [diff] [blame] | 70 | PyObject *readable; /* Stream-like object being read from */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 71 | PyObject *str; |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 72 | PyObject *current_filename; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 73 | char *ptr; |
| 74 | char *end; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 75 | char *buf; |
| 76 | Py_ssize_t buf_size; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 77 | PyObject *refs; /* dict on marshal, list on unmarshal */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 78 | int version; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 79 | } WFILE; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 80 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 81 | #define w_byte(c, p) if (((p)->fp)) putc((c), (p)->fp); \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 82 | else if ((p)->ptr != (p)->end) *(p)->ptr++ = (c); \ |
| 83 | else w_more(c, p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 84 | |
| 85 | static void |
Fredrik Lundh | 1153438 | 2000-07-23 18:24:06 +0000 | [diff] [blame] | 86 | w_more(int c, WFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 87 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 88 | Py_ssize_t size, newsize; |
| 89 | if (p->str == NULL) |
| 90 | return; /* An error already occurred */ |
| 91 | size = PyBytes_Size(p->str); |
| 92 | newsize = size + size + 1024; |
| 93 | if (newsize > 32*1024*1024) { |
| 94 | newsize = size + (size >> 3); /* 12.5% overallocation */ |
| 95 | } |
| 96 | if (_PyBytes_Resize(&p->str, newsize) != 0) { |
| 97 | p->ptr = p->end = NULL; |
| 98 | } |
| 99 | else { |
| 100 | p->ptr = PyBytes_AS_STRING((PyBytesObject *)p->str) + size; |
| 101 | p->end = |
| 102 | PyBytes_AS_STRING((PyBytesObject *)p->str) + newsize; |
| 103 | *p->ptr++ = Py_SAFE_DOWNCAST(c, int, char); |
| 104 | } |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | static void |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 108 | w_string(const char *s, Py_ssize_t n, WFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 109 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 110 | if (p->fp != NULL) { |
| 111 | fwrite(s, 1, n, p->fp); |
| 112 | } |
| 113 | else { |
| 114 | while (--n >= 0) { |
| 115 | w_byte(*s, p); |
| 116 | s++; |
| 117 | } |
| 118 | } |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 122 | w_short(int x, WFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 123 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 124 | w_byte((char)( x & 0xff), p); |
| 125 | w_byte((char)((x>> 8) & 0xff), p); |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 126 | } |
| 127 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 128 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 129 | w_long(long x, WFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 130 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 131 | w_byte((char)( x & 0xff), p); |
| 132 | w_byte((char)((x>> 8) & 0xff), p); |
| 133 | w_byte((char)((x>>16) & 0xff), p); |
| 134 | w_byte((char)((x>>24) & 0xff), p); |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 135 | } |
| 136 | |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 137 | #define SIZE32_MAX 0x7FFFFFFF |
| 138 | |
| 139 | #if SIZEOF_SIZE_T > 4 |
| 140 | # define W_SIZE(n, p) do { \ |
| 141 | if ((n) > SIZE32_MAX) { \ |
| 142 | (p)->depth--; \ |
| 143 | (p)->error = WFERR_UNMARSHALLABLE; \ |
| 144 | return; \ |
| 145 | } \ |
| 146 | w_long((long)(n), p); \ |
| 147 | } while(0) |
| 148 | #else |
| 149 | # define W_SIZE w_long |
| 150 | #endif |
| 151 | |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 152 | static void |
| 153 | w_pstring(const char *s, Py_ssize_t n, WFILE *p) |
| 154 | { |
| 155 | W_SIZE(n, p); |
| 156 | w_string(s, n, p); |
| 157 | } |
| 158 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 159 | static void |
| 160 | w_short_pstring(const char *s, Py_ssize_t n, WFILE *p) |
| 161 | { |
| 162 | w_byte(n, p); |
| 163 | w_string(s, n, p); |
| 164 | } |
| 165 | |
Serhiy Storchaka | 9594942 | 2013-08-27 19:40:23 +0300 | [diff] [blame] | 166 | /* We assume that Python ints are stored internally in base some power of |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 167 | 2**15; for the sake of portability we'll always read and write them in base |
| 168 | exactly 2**15. */ |
| 169 | |
| 170 | #define PyLong_MARSHAL_SHIFT 15 |
| 171 | #define PyLong_MARSHAL_BASE ((short)1 << PyLong_MARSHAL_SHIFT) |
| 172 | #define PyLong_MARSHAL_MASK (PyLong_MARSHAL_BASE - 1) |
| 173 | #if PyLong_SHIFT % PyLong_MARSHAL_SHIFT != 0 |
| 174 | #error "PyLong_SHIFT must be a multiple of PyLong_MARSHAL_SHIFT" |
| 175 | #endif |
| 176 | #define PyLong_MARSHAL_RATIO (PyLong_SHIFT / PyLong_MARSHAL_SHIFT) |
| 177 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 178 | #define W_TYPE(t, p) do { \ |
| 179 | w_byte((t) | flag, (p)); \ |
| 180 | } while(0) |
| 181 | |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 182 | static void |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 183 | w_PyLong(const PyLongObject *ob, char flag, WFILE *p) |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 184 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 185 | Py_ssize_t i, j, n, l; |
| 186 | digit d; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 187 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 188 | W_TYPE(TYPE_LONG, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 189 | if (Py_SIZE(ob) == 0) { |
| 190 | w_long((long)0, p); |
| 191 | return; |
| 192 | } |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 193 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 194 | /* set l to number of base PyLong_MARSHAL_BASE digits */ |
| 195 | n = ABS(Py_SIZE(ob)); |
| 196 | l = (n-1) * PyLong_MARSHAL_RATIO; |
| 197 | d = ob->ob_digit[n-1]; |
| 198 | assert(d != 0); /* a PyLong is always normalized */ |
| 199 | do { |
| 200 | d >>= PyLong_MARSHAL_SHIFT; |
| 201 | l++; |
| 202 | } while (d != 0); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 203 | if (l > SIZE32_MAX) { |
| 204 | p->depth--; |
| 205 | p->error = WFERR_UNMARSHALLABLE; |
| 206 | return; |
| 207 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 208 | w_long((long)(Py_SIZE(ob) > 0 ? l : -l), p); |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 209 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 210 | for (i=0; i < n-1; i++) { |
| 211 | d = ob->ob_digit[i]; |
| 212 | for (j=0; j < PyLong_MARSHAL_RATIO; j++) { |
| 213 | w_short(d & PyLong_MARSHAL_MASK, p); |
| 214 | d >>= PyLong_MARSHAL_SHIFT; |
| 215 | } |
| 216 | assert (d == 0); |
| 217 | } |
| 218 | d = ob->ob_digit[n-1]; |
| 219 | do { |
| 220 | w_short(d & PyLong_MARSHAL_MASK, p); |
| 221 | d >>= PyLong_MARSHAL_SHIFT; |
| 222 | } while (d != 0); |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 223 | } |
| 224 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 225 | static int |
| 226 | w_ref(PyObject *v, char *flag, WFILE *p) |
| 227 | { |
| 228 | PyObject *id; |
| 229 | PyObject *idx; |
| 230 | |
| 231 | if (p->version < 3 || p->refs == NULL) |
| 232 | return 0; /* not writing object references */ |
| 233 | |
| 234 | /* if it has only one reference, it definitely isn't shared */ |
| 235 | if (Py_REFCNT(v) == 1) |
| 236 | return 0; |
| 237 | |
| 238 | id = PyLong_FromVoidPtr((void*)v); |
| 239 | if (id == NULL) |
| 240 | goto err; |
| 241 | idx = PyDict_GetItem(p->refs, id); |
| 242 | if (idx != NULL) { |
| 243 | /* write the reference index to the stream */ |
| 244 | long w = PyLong_AsLong(idx); |
| 245 | Py_DECREF(id); |
| 246 | if (w == -1 && PyErr_Occurred()) { |
| 247 | goto err; |
| 248 | } |
| 249 | /* we don't store "long" indices in the dict */ |
| 250 | assert(0 <= w && w <= 0x7fffffff); |
| 251 | w_byte(TYPE_REF, p); |
| 252 | w_long(w, p); |
| 253 | return 1; |
| 254 | } else { |
| 255 | int ok; |
| 256 | Py_ssize_t s = PyDict_Size(p->refs); |
| 257 | /* we don't support long indices */ |
| 258 | if (s >= 0x7fffffff) { |
| 259 | PyErr_SetString(PyExc_ValueError, "too many objects"); |
| 260 | goto err; |
| 261 | } |
| 262 | idx = PyLong_FromSsize_t(s); |
| 263 | ok = idx && PyDict_SetItem(p->refs, id, idx) == 0; |
| 264 | Py_DECREF(id); |
| 265 | Py_XDECREF(idx); |
| 266 | if (!ok) |
| 267 | goto err; |
| 268 | *flag |= FLAG_REF; |
| 269 | return 0; |
| 270 | } |
| 271 | err: |
| 272 | p->error = WFERR_UNMARSHALLABLE; |
| 273 | return 1; |
| 274 | } |
| 275 | |
| 276 | static void |
| 277 | w_complex_object(PyObject *v, char flag, WFILE *p); |
| 278 | |
Guido van Rossum | b0c168c | 1996-12-05 23:15:02 +0000 | [diff] [blame] | 279 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 280 | w_object(PyObject *v, WFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 281 | { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 282 | char flag = '\0'; |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 283 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 284 | p->depth++; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 285 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 286 | if (p->depth > MAX_MARSHAL_STACK_DEPTH) { |
| 287 | p->error = WFERR_NESTEDTOODEEP; |
| 288 | } |
| 289 | else if (v == NULL) { |
| 290 | w_byte(TYPE_NULL, p); |
| 291 | } |
| 292 | else if (v == Py_None) { |
| 293 | w_byte(TYPE_NONE, p); |
| 294 | } |
| 295 | else if (v == PyExc_StopIteration) { |
| 296 | w_byte(TYPE_STOPITER, p); |
| 297 | } |
| 298 | else if (v == Py_Ellipsis) { |
| 299 | w_byte(TYPE_ELLIPSIS, p); |
| 300 | } |
| 301 | else if (v == Py_False) { |
| 302 | w_byte(TYPE_FALSE, p); |
| 303 | } |
| 304 | else if (v == Py_True) { |
| 305 | w_byte(TYPE_TRUE, p); |
| 306 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 307 | else if (!w_ref(v, &flag, p)) |
| 308 | w_complex_object(v, flag, p); |
| 309 | |
| 310 | p->depth--; |
| 311 | } |
| 312 | |
| 313 | static void |
| 314 | w_complex_object(PyObject *v, char flag, WFILE *p) |
| 315 | { |
| 316 | Py_ssize_t i, n; |
| 317 | |
| 318 | if (PyLong_CheckExact(v)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 319 | long x = PyLong_AsLong(v); |
| 320 | if ((x == -1) && PyErr_Occurred()) { |
| 321 | PyLongObject *ob = (PyLongObject *)v; |
| 322 | PyErr_Clear(); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 323 | w_PyLong(ob, flag, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 324 | } |
| 325 | else { |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 326 | #if SIZEOF_LONG > 4 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 327 | long y = Py_ARITHMETIC_RIGHT_SHIFT(long, x, 31); |
| 328 | if (y && y != -1) { |
Martin v. Löwis | 7e39572 | 2012-07-28 19:44:05 +0200 | [diff] [blame] | 329 | /* Too large for TYPE_INT */ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 330 | w_PyLong((PyLongObject*)v, flag, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 331 | } |
| 332 | else |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 333 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 334 | { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 335 | W_TYPE(TYPE_INT, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 336 | w_long(x, p); |
| 337 | } |
| 338 | } |
| 339 | } |
| 340 | else if (PyFloat_CheckExact(v)) { |
| 341 | if (p->version > 1) { |
| 342 | unsigned char buf[8]; |
| 343 | if (_PyFloat_Pack8(PyFloat_AsDouble(v), |
| 344 | buf, 1) < 0) { |
| 345 | p->error = WFERR_UNMARSHALLABLE; |
| 346 | return; |
| 347 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 348 | W_TYPE(TYPE_BINARY_FLOAT, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 349 | w_string((char*)buf, 8, p); |
| 350 | } |
| 351 | else { |
| 352 | char *buf = PyOS_double_to_string(PyFloat_AS_DOUBLE(v), |
| 353 | 'g', 17, 0, NULL); |
| 354 | if (!buf) { |
| 355 | p->error = WFERR_NOMEMORY; |
| 356 | return; |
| 357 | } |
| 358 | n = strlen(buf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 359 | W_TYPE(TYPE_FLOAT, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 360 | w_byte((int)n, p); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 361 | w_string(buf, n, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 362 | PyMem_Free(buf); |
| 363 | } |
| 364 | } |
| 365 | else if (PyComplex_CheckExact(v)) { |
| 366 | if (p->version > 1) { |
| 367 | unsigned char buf[8]; |
| 368 | if (_PyFloat_Pack8(PyComplex_RealAsDouble(v), |
| 369 | buf, 1) < 0) { |
| 370 | p->error = WFERR_UNMARSHALLABLE; |
| 371 | return; |
| 372 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 373 | W_TYPE(TYPE_BINARY_COMPLEX, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 374 | w_string((char*)buf, 8, p); |
| 375 | if (_PyFloat_Pack8(PyComplex_ImagAsDouble(v), |
| 376 | buf, 1) < 0) { |
| 377 | p->error = WFERR_UNMARSHALLABLE; |
| 378 | return; |
| 379 | } |
| 380 | w_string((char*)buf, 8, p); |
| 381 | } |
| 382 | else { |
| 383 | char *buf; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 384 | W_TYPE(TYPE_COMPLEX, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 385 | buf = PyOS_double_to_string(PyComplex_RealAsDouble(v), |
| 386 | 'g', 17, 0, NULL); |
| 387 | if (!buf) { |
| 388 | p->error = WFERR_NOMEMORY; |
| 389 | return; |
| 390 | } |
| 391 | n = strlen(buf); |
| 392 | w_byte((int)n, p); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 393 | w_string(buf, n, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 394 | PyMem_Free(buf); |
| 395 | buf = PyOS_double_to_string(PyComplex_ImagAsDouble(v), |
| 396 | 'g', 17, 0, NULL); |
| 397 | if (!buf) { |
| 398 | p->error = WFERR_NOMEMORY; |
| 399 | return; |
| 400 | } |
| 401 | n = strlen(buf); |
| 402 | w_byte((int)n, p); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 403 | w_string(buf, n, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 404 | PyMem_Free(buf); |
| 405 | } |
| 406 | } |
| 407 | else if (PyBytes_CheckExact(v)) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 408 | W_TYPE(TYPE_STRING, p); |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 409 | w_pstring(PyBytes_AS_STRING(v), PyBytes_GET_SIZE(v), p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 410 | } |
| 411 | else if (PyUnicode_CheckExact(v)) { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 412 | if (p->version >= 4 && PyUnicode_IS_ASCII(v)) { |
| 413 | int is_short = PyUnicode_GET_LENGTH(v) < 256; |
| 414 | if (is_short) { |
| 415 | if (PyUnicode_CHECK_INTERNED(v)) |
| 416 | W_TYPE(TYPE_SHORT_ASCII_INTERNED, p); |
| 417 | else |
| 418 | W_TYPE(TYPE_SHORT_ASCII, p); |
| 419 | w_short_pstring((char *) PyUnicode_1BYTE_DATA(v), |
| 420 | PyUnicode_GET_LENGTH(v), p); |
| 421 | } |
| 422 | else { |
| 423 | if (PyUnicode_CHECK_INTERNED(v)) |
| 424 | W_TYPE(TYPE_ASCII_INTERNED, p); |
| 425 | else |
| 426 | W_TYPE(TYPE_ASCII, p); |
| 427 | w_pstring((char *) PyUnicode_1BYTE_DATA(v), |
| 428 | PyUnicode_GET_LENGTH(v), p); |
| 429 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 430 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 431 | else { |
| 432 | PyObject *utf8; |
| 433 | utf8 = PyUnicode_AsEncodedString(v, "utf8", "surrogatepass"); |
| 434 | if (utf8 == NULL) { |
| 435 | p->depth--; |
| 436 | p->error = WFERR_UNMARSHALLABLE; |
| 437 | return; |
| 438 | } |
| 439 | if (p->version >= 3 && PyUnicode_CHECK_INTERNED(v)) |
| 440 | W_TYPE(TYPE_INTERNED, p); |
| 441 | else |
| 442 | W_TYPE(TYPE_UNICODE, p); |
| 443 | w_pstring(PyBytes_AS_STRING(utf8), PyBytes_GET_SIZE(utf8), p); |
| 444 | Py_DECREF(utf8); |
| 445 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 446 | } |
| 447 | else if (PyTuple_CheckExact(v)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 448 | n = PyTuple_Size(v); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 449 | if (p->version >= 4 && n < 256) { |
| 450 | W_TYPE(TYPE_SMALL_TUPLE, p); |
| 451 | w_byte(n, p); |
| 452 | } |
| 453 | else { |
| 454 | W_TYPE(TYPE_TUPLE, p); |
| 455 | W_SIZE(n, p); |
| 456 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 457 | for (i = 0; i < n; i++) { |
| 458 | w_object(PyTuple_GET_ITEM(v, i), p); |
| 459 | } |
| 460 | } |
| 461 | else if (PyList_CheckExact(v)) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 462 | W_TYPE(TYPE_LIST, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 463 | n = PyList_GET_SIZE(v); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 464 | W_SIZE(n, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 465 | for (i = 0; i < n; i++) { |
| 466 | w_object(PyList_GET_ITEM(v, i), p); |
| 467 | } |
| 468 | } |
| 469 | else if (PyDict_CheckExact(v)) { |
| 470 | Py_ssize_t pos; |
| 471 | PyObject *key, *value; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 472 | W_TYPE(TYPE_DICT, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 473 | /* This one is NULL object terminated! */ |
| 474 | pos = 0; |
| 475 | while (PyDict_Next(v, &pos, &key, &value)) { |
| 476 | w_object(key, p); |
| 477 | w_object(value, p); |
| 478 | } |
| 479 | w_object((PyObject *)NULL, p); |
| 480 | } |
| 481 | else if (PyAnySet_CheckExact(v)) { |
| 482 | PyObject *value, *it; |
Raymond Hettinger | a422c34 | 2005-01-11 03:03:27 +0000 | [diff] [blame] | 483 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 484 | if (PyObject_TypeCheck(v, &PySet_Type)) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 485 | W_TYPE(TYPE_SET, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 486 | else |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 487 | W_TYPE(TYPE_FROZENSET, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 488 | n = PyObject_Size(v); |
| 489 | if (n == -1) { |
| 490 | p->depth--; |
| 491 | p->error = WFERR_UNMARSHALLABLE; |
| 492 | return; |
| 493 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 494 | W_SIZE(n, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 495 | it = PyObject_GetIter(v); |
| 496 | if (it == NULL) { |
| 497 | p->depth--; |
| 498 | p->error = WFERR_UNMARSHALLABLE; |
| 499 | return; |
| 500 | } |
| 501 | while ((value = PyIter_Next(it)) != NULL) { |
| 502 | w_object(value, p); |
| 503 | Py_DECREF(value); |
| 504 | } |
| 505 | Py_DECREF(it); |
| 506 | if (PyErr_Occurred()) { |
| 507 | p->depth--; |
| 508 | p->error = WFERR_UNMARSHALLABLE; |
| 509 | return; |
| 510 | } |
| 511 | } |
| 512 | else if (PyCode_Check(v)) { |
| 513 | PyCodeObject *co = (PyCodeObject *)v; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 514 | W_TYPE(TYPE_CODE, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 515 | w_long(co->co_argcount, p); |
| 516 | w_long(co->co_kwonlyargcount, p); |
| 517 | w_long(co->co_nlocals, p); |
| 518 | w_long(co->co_stacksize, p); |
| 519 | w_long(co->co_flags, p); |
| 520 | w_object(co->co_code, p); |
| 521 | w_object(co->co_consts, p); |
| 522 | w_object(co->co_names, p); |
| 523 | w_object(co->co_varnames, p); |
| 524 | w_object(co->co_freevars, p); |
| 525 | w_object(co->co_cellvars, p); |
| 526 | w_object(co->co_filename, p); |
| 527 | w_object(co->co_name, p); |
| 528 | w_long(co->co_firstlineno, p); |
| 529 | w_object(co->co_lnotab, p); |
| 530 | } |
| 531 | else if (PyObject_CheckBuffer(v)) { |
| 532 | /* Write unknown buffer-style objects as a string */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 533 | Py_buffer view; |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 534 | if (PyObject_GetBuffer(v, &view, PyBUF_SIMPLE) != 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 535 | w_byte(TYPE_UNKNOWN, p); |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 536 | p->depth--; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 537 | p->error = WFERR_UNMARSHALLABLE; |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 538 | return; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 539 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 540 | W_TYPE(TYPE_STRING, p); |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 541 | w_pstring(view.buf, view.len, p); |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 542 | PyBuffer_Release(&view); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 543 | } |
| 544 | else { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 545 | W_TYPE(TYPE_UNKNOWN, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 546 | p->error = WFERR_UNMARSHALLABLE; |
| 547 | } |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 548 | } |
| 549 | |
Serhiy Storchaka | 9594942 | 2013-08-27 19:40:23 +0300 | [diff] [blame] | 550 | /* version currently has no effect for writing ints. */ |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 551 | void |
Martin v. Löwis | ef82d2f | 2004-06-27 16:51:46 +0000 | [diff] [blame] | 552 | PyMarshal_WriteLongToFile(long x, FILE *fp, int version) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 553 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 554 | WFILE wf; |
| 555 | wf.fp = fp; |
| 556 | wf.error = WFERR_OK; |
| 557 | wf.depth = 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 558 | wf.refs = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 559 | wf.version = version; |
| 560 | w_long(x, &wf); |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 561 | } |
| 562 | |
| 563 | void |
Martin v. Löwis | ef82d2f | 2004-06-27 16:51:46 +0000 | [diff] [blame] | 564 | PyMarshal_WriteObjectToFile(PyObject *x, FILE *fp, int version) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 565 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 566 | WFILE wf; |
| 567 | wf.fp = fp; |
| 568 | wf.error = WFERR_OK; |
| 569 | wf.depth = 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 570 | if (version >= 3) { |
| 571 | if ((wf.refs = PyDict_New()) == NULL) |
| 572 | return; /* caller mush check PyErr_Occurred() */ |
| 573 | } else |
| 574 | wf.refs = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 575 | wf.version = version; |
| 576 | w_object(x, &wf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 577 | Py_XDECREF(wf.refs); |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 578 | } |
| 579 | |
| 580 | typedef WFILE RFILE; /* Same struct with different invariants */ |
| 581 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 582 | static char * |
| 583 | r_string(Py_ssize_t n, RFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 584 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 585 | Py_ssize_t read = -1; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 586 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 587 | if (p->ptr != NULL) { |
| 588 | /* Fast path for loads() */ |
| 589 | char *res = p->ptr; |
| 590 | Py_ssize_t left = p->end - p->ptr; |
| 591 | if (left < n) { |
| 592 | PyErr_SetString(PyExc_EOFError, |
| 593 | "marshal data too short"); |
| 594 | return NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 595 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 596 | p->ptr += n; |
| 597 | return res; |
| 598 | } |
| 599 | if (p->buf == NULL) { |
| 600 | p->buf = PyMem_MALLOC(n); |
| 601 | if (p->buf == NULL) { |
| 602 | PyErr_NoMemory(); |
| 603 | return NULL; |
| 604 | } |
| 605 | p->buf_size = n; |
| 606 | } |
| 607 | else if (p->buf_size < n) { |
| 608 | p->buf = PyMem_REALLOC(p->buf, n); |
| 609 | if (p->buf == NULL) { |
| 610 | PyErr_NoMemory(); |
| 611 | return NULL; |
| 612 | } |
| 613 | p->buf_size = n; |
| 614 | } |
| 615 | if (!p->readable) { |
| 616 | assert(p->fp != NULL); |
| 617 | /* The result fits into int because it must be <=n. */ |
| 618 | read = fread(p->buf, 1, n, p->fp); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 619 | } |
| 620 | else { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 621 | _Py_IDENTIFIER(readinto); |
| 622 | PyObject *res, *mview; |
| 623 | Py_buffer buf; |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 624 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 625 | if (PyBuffer_FillInfo(&buf, NULL, p->buf, n, 0, PyBUF_CONTIG) == -1) |
| 626 | return NULL; |
| 627 | mview = PyMemoryView_FromBuffer(&buf); |
| 628 | if (mview == NULL) |
| 629 | return NULL; |
| 630 | |
| 631 | res = _PyObject_CallMethodId(p->readable, &PyId_readinto, "N", mview); |
| 632 | if (res != NULL) { |
| 633 | read = PyNumber_AsSsize_t(res, PyExc_ValueError); |
| 634 | Py_DECREF(res); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 635 | } |
| 636 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 637 | if (read != n) { |
| 638 | if (!PyErr_Occurred()) { |
| 639 | if (read > n) |
| 640 | PyErr_Format(PyExc_ValueError, |
| 641 | "read() returned too much data: " |
| 642 | "%zd bytes requested, %zd returned", |
| 643 | n, read); |
| 644 | else |
| 645 | PyErr_SetString(PyExc_EOFError, |
| 646 | "EOF read where not expected"); |
| 647 | } |
| 648 | return NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 649 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 650 | return p->buf; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 651 | } |
| 652 | |
| 653 | |
| 654 | static int |
| 655 | r_byte(RFILE *p) |
| 656 | { |
| 657 | int c = EOF; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 658 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 659 | if (p->ptr != NULL) { |
| 660 | if (p->ptr < p->end) |
| 661 | c = (unsigned char) *p->ptr++; |
| 662 | return c; |
| 663 | } |
| 664 | if (!p->readable) { |
| 665 | assert(p->fp); |
| 666 | c = getc(p->fp); |
| 667 | } |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 668 | else { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 669 | char *ptr = r_string(1, p); |
| 670 | if (ptr != NULL) |
| 671 | c = *(unsigned char *) ptr; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 672 | } |
| 673 | return c; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 674 | } |
| 675 | |
| 676 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 677 | r_short(RFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 678 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 679 | short x = -1; |
| 680 | unsigned char *buffer; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 681 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 682 | buffer = (unsigned char *) r_string(2, p); |
| 683 | if (buffer != NULL) { |
| 684 | x = buffer[0]; |
| 685 | x |= buffer[1] << 8; |
| 686 | /* Sign-extension, in case short greater than 16 bits */ |
| 687 | x |= -(x & 0x8000); |
| 688 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 689 | return x; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 690 | } |
| 691 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 692 | static long |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 693 | r_long(RFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 694 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 695 | long x = -1; |
| 696 | unsigned char *buffer; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 697 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 698 | buffer = (unsigned char *) r_string(4, p); |
| 699 | if (buffer != NULL) { |
| 700 | x = buffer[0]; |
| 701 | x |= (long)buffer[1] << 8; |
| 702 | x |= (long)buffer[2] << 16; |
| 703 | x |= (long)buffer[3] << 24; |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 704 | #if SIZEOF_LONG > 4 |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 705 | /* Sign extension for 64-bit machines */ |
| 706 | x |= -(x & 0x80000000L); |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 707 | #endif |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 708 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 709 | return x; |
Guido van Rossum | b0c168c | 1996-12-05 23:15:02 +0000 | [diff] [blame] | 710 | } |
| 711 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 712 | static PyObject * |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 713 | r_PyLong(RFILE *p) |
| 714 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 715 | PyLongObject *ob; |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 716 | long n, size, i; |
| 717 | int j, md, shorts_in_top_digit; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 718 | digit d; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 719 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 720 | n = r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 721 | if (PyErr_Occurred()) |
| 722 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 723 | if (n == 0) |
| 724 | return (PyObject *)_PyLong_New(0); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 725 | if (n < -SIZE32_MAX || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 726 | PyErr_SetString(PyExc_ValueError, |
| 727 | "bad marshal data (long size out of range)"); |
| 728 | return NULL; |
| 729 | } |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 730 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 731 | size = 1 + (ABS(n) - 1) / PyLong_MARSHAL_RATIO; |
| 732 | shorts_in_top_digit = 1 + (ABS(n) - 1) % PyLong_MARSHAL_RATIO; |
| 733 | ob = _PyLong_New(size); |
| 734 | if (ob == NULL) |
| 735 | return NULL; |
| 736 | Py_SIZE(ob) = n > 0 ? size : -size; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 737 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 738 | for (i = 0; i < size-1; i++) { |
| 739 | d = 0; |
| 740 | for (j=0; j < PyLong_MARSHAL_RATIO; j++) { |
| 741 | md = r_short(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 742 | if (PyErr_Occurred()) |
| 743 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 744 | if (md < 0 || md > PyLong_MARSHAL_BASE) |
| 745 | goto bad_digit; |
| 746 | d += (digit)md << j*PyLong_MARSHAL_SHIFT; |
| 747 | } |
| 748 | ob->ob_digit[i] = d; |
| 749 | } |
| 750 | d = 0; |
| 751 | for (j=0; j < shorts_in_top_digit; j++) { |
| 752 | md = r_short(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 753 | if (PyErr_Occurred()) |
| 754 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 755 | if (md < 0 || md > PyLong_MARSHAL_BASE) |
| 756 | goto bad_digit; |
| 757 | /* topmost marshal digit should be nonzero */ |
| 758 | if (md == 0 && j == shorts_in_top_digit - 1) { |
| 759 | Py_DECREF(ob); |
| 760 | PyErr_SetString(PyExc_ValueError, |
| 761 | "bad marshal data (unnormalized long data)"); |
| 762 | return NULL; |
| 763 | } |
| 764 | d += (digit)md << j*PyLong_MARSHAL_SHIFT; |
| 765 | } |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 766 | if (PyErr_Occurred()) { |
| 767 | Py_DECREF(ob); |
| 768 | return NULL; |
| 769 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 770 | /* top digit should be nonzero, else the resulting PyLong won't be |
| 771 | normalized */ |
| 772 | ob->ob_digit[size-1] = d; |
| 773 | return (PyObject *)ob; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 774 | bad_digit: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 775 | Py_DECREF(ob); |
| 776 | PyErr_SetString(PyExc_ValueError, |
| 777 | "bad marshal data (digit out of range in long)"); |
| 778 | return NULL; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 779 | } |
| 780 | |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 781 | /* allocate the reflist index for a new object. Return -1 on failure */ |
| 782 | static Py_ssize_t |
| 783 | r_ref_reserve(int flag, RFILE *p) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 784 | { |
| 785 | if (flag) { /* currently only FLAG_REF is defined */ |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 786 | Py_ssize_t idx = PyList_GET_SIZE(p->refs); |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 787 | if (idx >= 0x7ffffffe) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 788 | PyErr_SetString(PyExc_ValueError, "bad marshal data (index list too large)"); |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 789 | return -1; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 790 | } |
| 791 | if (PyList_Append(p->refs, Py_None) < 0) |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 792 | return -1; |
| 793 | return idx; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 794 | } else |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 795 | return 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 796 | } |
| 797 | |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 798 | /* insert the new object 'o' to the reflist at previously |
| 799 | * allocated index 'idx'. |
| 800 | * 'o' can be NULL, in which case nothing is done. |
| 801 | * if 'o' was non-NULL, and the function succeeds, 'o' is returned. |
| 802 | * if 'o' was non-NULL, and the function fails, 'o' is released and |
| 803 | * NULL returned. This simplifies error checking at the call site since |
| 804 | * a single test for NULL for the function result is enough. |
| 805 | */ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 806 | static PyObject * |
| 807 | r_ref_insert(PyObject *o, Py_ssize_t idx, int flag, RFILE *p) |
| 808 | { |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 809 | if (o != NULL && flag) { /* currently only FLAG_REF is defined */ |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 810 | PyObject *tmp = PyList_GET_ITEM(p->refs, idx); |
| 811 | Py_INCREF(o); |
| 812 | PyList_SET_ITEM(p->refs, idx, o); |
| 813 | Py_DECREF(tmp); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 814 | } |
| 815 | return o; |
| 816 | } |
| 817 | |
| 818 | /* combination of both above, used when an object can be |
| 819 | * created whenever it is seen in the file, as opposed to |
| 820 | * after having loaded its sub-objects. |
| 821 | */ |
| 822 | static PyObject * |
| 823 | r_ref(PyObject *o, int flag, RFILE *p) |
| 824 | { |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 825 | if (o != NULL && flag) { /* currently only FLAG_REF is defined */ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 826 | if (PyList_Append(p->refs, o) < 0) { |
| 827 | Py_DECREF(o); /* release the new object */ |
| 828 | return NULL; |
| 829 | } |
| 830 | } |
| 831 | return o; |
| 832 | } |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 833 | |
| 834 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 835 | r_object(RFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 836 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 837 | /* NULL is a valid return value, it does not necessarily means that |
| 838 | an exception is set. */ |
| 839 | PyObject *v, *v2; |
Benjamin Peterson | eddb0a7 | 2013-03-20 00:40:07 -0500 | [diff] [blame] | 840 | Py_ssize_t idx = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 841 | long i, n; |
Kristján Valur Jónsson | 6168362 | 2013-03-20 14:26:33 -0700 | [diff] [blame] | 842 | int type, code = r_byte(p); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 843 | int flag, is_interned = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 844 | PyObject *retval; |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 845 | |
Kristján Valur Jónsson | 6168362 | 2013-03-20 14:26:33 -0700 | [diff] [blame] | 846 | if (code == EOF) { |
| 847 | PyErr_SetString(PyExc_EOFError, |
| 848 | "EOF read where object expected"); |
| 849 | return NULL; |
| 850 | } |
| 851 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 852 | p->depth++; |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 853 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 854 | if (p->depth > MAX_MARSHAL_STACK_DEPTH) { |
| 855 | p->depth--; |
| 856 | PyErr_SetString(PyExc_ValueError, "recursion limit exceeded"); |
| 857 | return NULL; |
| 858 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 859 | |
Kristján Valur Jónsson | 6168362 | 2013-03-20 14:26:33 -0700 | [diff] [blame] | 860 | flag = code & FLAG_REF; |
| 861 | type = code & ~FLAG_REF; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 862 | |
| 863 | #define R_REF(O) do{\ |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 864 | if (flag) \ |
| 865 | O = r_ref(O, flag, p);\ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 866 | } while (0) |
| 867 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 868 | switch (type) { |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 869 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 870 | case TYPE_NULL: |
| 871 | retval = NULL; |
| 872 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 873 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 874 | case TYPE_NONE: |
| 875 | Py_INCREF(Py_None); |
| 876 | retval = Py_None; |
| 877 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 878 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 879 | case TYPE_STOPITER: |
| 880 | Py_INCREF(PyExc_StopIteration); |
| 881 | retval = PyExc_StopIteration; |
| 882 | break; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 883 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 884 | case TYPE_ELLIPSIS: |
| 885 | Py_INCREF(Py_Ellipsis); |
| 886 | retval = Py_Ellipsis; |
| 887 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 888 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 889 | case TYPE_FALSE: |
| 890 | Py_INCREF(Py_False); |
| 891 | retval = Py_False; |
| 892 | break; |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 893 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 894 | case TYPE_TRUE: |
| 895 | Py_INCREF(Py_True); |
| 896 | retval = Py_True; |
| 897 | break; |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 898 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 899 | case TYPE_INT: |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 900 | n = r_long(p); |
| 901 | retval = PyErr_Occurred() ? NULL : PyLong_FromLong(n); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 902 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 903 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 904 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 905 | case TYPE_LONG: |
| 906 | retval = r_PyLong(p); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 907 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 908 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 909 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 910 | case TYPE_FLOAT: |
| 911 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 912 | char buf[256], *ptr; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 913 | double dx; |
| 914 | retval = NULL; |
| 915 | n = r_byte(p); |
Serhiy Storchaka | 3641a74 | 2013-07-11 22:20:47 +0300 | [diff] [blame] | 916 | if (n == EOF) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 917 | PyErr_SetString(PyExc_EOFError, |
| 918 | "EOF read where object expected"); |
| 919 | break; |
| 920 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 921 | ptr = r_string(n, p); |
| 922 | if (ptr == NULL) |
Serhiy Storchaka | 3641a74 | 2013-07-11 22:20:47 +0300 | [diff] [blame] | 923 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 924 | memcpy(buf, ptr, n); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 925 | buf[n] = '\0'; |
| 926 | dx = PyOS_string_to_double(buf, NULL, NULL); |
| 927 | if (dx == -1.0 && PyErr_Occurred()) |
| 928 | break; |
| 929 | retval = PyFloat_FromDouble(dx); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 930 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 931 | break; |
| 932 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 933 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 934 | case TYPE_BINARY_FLOAT: |
| 935 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 936 | unsigned char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 937 | double x; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 938 | buf = (unsigned char *) r_string(8, p); |
| 939 | if (buf == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 940 | retval = NULL; |
| 941 | break; |
| 942 | } |
| 943 | x = _PyFloat_Unpack8(buf, 1); |
| 944 | if (x == -1.0 && PyErr_Occurred()) { |
| 945 | retval = NULL; |
| 946 | break; |
| 947 | } |
| 948 | retval = PyFloat_FromDouble(x); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 949 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 950 | break; |
| 951 | } |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 952 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 953 | case TYPE_COMPLEX: |
| 954 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 955 | char buf[256], *ptr; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 956 | Py_complex c; |
| 957 | retval = NULL; |
| 958 | n = r_byte(p); |
Serhiy Storchaka | 3641a74 | 2013-07-11 22:20:47 +0300 | [diff] [blame] | 959 | if (n == EOF) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 960 | PyErr_SetString(PyExc_EOFError, |
| 961 | "EOF read where object expected"); |
| 962 | break; |
| 963 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 964 | ptr = r_string(n, p); |
| 965 | if (ptr == NULL) |
Serhiy Storchaka | 3641a74 | 2013-07-11 22:20:47 +0300 | [diff] [blame] | 966 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 967 | memcpy(buf, ptr, n); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 968 | buf[n] = '\0'; |
| 969 | c.real = PyOS_string_to_double(buf, NULL, NULL); |
| 970 | if (c.real == -1.0 && PyErr_Occurred()) |
| 971 | break; |
| 972 | n = r_byte(p); |
Serhiy Storchaka | 3641a74 | 2013-07-11 22:20:47 +0300 | [diff] [blame] | 973 | if (n == EOF) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 974 | PyErr_SetString(PyExc_EOFError, |
| 975 | "EOF read where object expected"); |
| 976 | break; |
| 977 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 978 | ptr = r_string(n, p); |
| 979 | if (ptr == NULL) |
Serhiy Storchaka | 3641a74 | 2013-07-11 22:20:47 +0300 | [diff] [blame] | 980 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 981 | memcpy(buf, ptr, n); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 982 | buf[n] = '\0'; |
| 983 | c.imag = PyOS_string_to_double(buf, NULL, NULL); |
| 984 | if (c.imag == -1.0 && PyErr_Occurred()) |
| 985 | break; |
| 986 | retval = PyComplex_FromCComplex(c); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 987 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 988 | break; |
| 989 | } |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 990 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 991 | case TYPE_BINARY_COMPLEX: |
| 992 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 993 | unsigned char *buf; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 994 | Py_complex c; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 995 | buf = (unsigned char *) r_string(8, p); |
| 996 | if (buf == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 997 | retval = NULL; |
| 998 | break; |
| 999 | } |
| 1000 | c.real = _PyFloat_Unpack8(buf, 1); |
| 1001 | if (c.real == -1.0 && PyErr_Occurred()) { |
| 1002 | retval = NULL; |
| 1003 | break; |
| 1004 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1005 | buf = (unsigned char *) r_string(8, p); |
| 1006 | if (buf == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1007 | retval = NULL; |
| 1008 | break; |
| 1009 | } |
| 1010 | c.imag = _PyFloat_Unpack8(buf, 1); |
| 1011 | if (c.imag == -1.0 && PyErr_Occurred()) { |
| 1012 | retval = NULL; |
| 1013 | break; |
| 1014 | } |
| 1015 | retval = PyComplex_FromCComplex(c); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1016 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1017 | break; |
| 1018 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1019 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1020 | case TYPE_STRING: |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1021 | { |
| 1022 | char *ptr; |
| 1023 | n = r_long(p); |
| 1024 | if (PyErr_Occurred()) { |
| 1025 | retval = NULL; |
| 1026 | break; |
| 1027 | } |
| 1028 | if (n < 0 || n > SIZE32_MAX) { |
| 1029 | PyErr_SetString(PyExc_ValueError, "bad marshal data (string size out of range)"); |
| 1030 | retval = NULL; |
| 1031 | break; |
| 1032 | } |
| 1033 | v = PyBytes_FromStringAndSize((char *)NULL, n); |
| 1034 | if (v == NULL) { |
| 1035 | retval = NULL; |
| 1036 | break; |
| 1037 | } |
| 1038 | ptr = r_string(n, p); |
| 1039 | if (ptr == NULL) { |
| 1040 | Py_DECREF(v); |
| 1041 | retval = NULL; |
| 1042 | break; |
| 1043 | } |
| 1044 | memcpy(PyBytes_AS_STRING(v), ptr, n); |
| 1045 | retval = v; |
| 1046 | R_REF(retval); |
| 1047 | break; |
| 1048 | } |
| 1049 | |
| 1050 | case TYPE_ASCII_INTERNED: |
| 1051 | is_interned = 1; |
| 1052 | case TYPE_ASCII: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1053 | n = r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1054 | if (PyErr_Occurred()) { |
| 1055 | retval = NULL; |
| 1056 | break; |
| 1057 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1058 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1059 | PyErr_SetString(PyExc_ValueError, "bad marshal data (unicode size out of range)"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1060 | retval = NULL; |
| 1061 | break; |
| 1062 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1063 | goto _read_ascii; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1064 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1065 | case TYPE_SHORT_ASCII_INTERNED: |
| 1066 | is_interned = 1; |
| 1067 | case TYPE_SHORT_ASCII: |
| 1068 | n = r_byte(p); |
| 1069 | if (n == EOF) { |
| 1070 | PyErr_SetString(PyExc_EOFError, |
| 1071 | "EOF read where object expected"); |
| 1072 | break; |
| 1073 | } |
| 1074 | _read_ascii: |
| 1075 | { |
| 1076 | char *ptr; |
| 1077 | ptr = r_string(n, p); |
| 1078 | if (ptr == NULL) { |
| 1079 | retval = NULL; |
| 1080 | break; |
| 1081 | } |
| 1082 | v = PyUnicode_FromKindAndData(PyUnicode_1BYTE_KIND, ptr, n); |
| 1083 | if (v == NULL) { |
| 1084 | retval = NULL; |
| 1085 | break; |
| 1086 | } |
| 1087 | if (is_interned) |
| 1088 | PyUnicode_InternInPlace(&v); |
| 1089 | retval = v; |
| 1090 | R_REF(retval); |
| 1091 | break; |
| 1092 | } |
| 1093 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1094 | case TYPE_INTERNED: |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1095 | is_interned = 1; |
| 1096 | case TYPE_UNICODE: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1097 | { |
| 1098 | char *buffer; |
Guido van Rossum | c279b53 | 2000-03-10 23:03:02 +0000 | [diff] [blame] | 1099 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1100 | n = r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1101 | if (PyErr_Occurred()) { |
| 1102 | retval = NULL; |
| 1103 | break; |
| 1104 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1105 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1106 | PyErr_SetString(PyExc_ValueError, "bad marshal data (unicode size out of range)"); |
| 1107 | retval = NULL; |
| 1108 | break; |
| 1109 | } |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1110 | if (n != 0) { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1111 | buffer = r_string(n, p); |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1112 | if (buffer == NULL) { |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1113 | retval = NULL; |
| 1114 | break; |
| 1115 | } |
| 1116 | v = PyUnicode_DecodeUTF8(buffer, n, "surrogatepass"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1117 | } |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1118 | else { |
| 1119 | v = PyUnicode_New(0, 0); |
| 1120 | } |
Victor Stinner | 3a8b79d | 2013-07-08 22:23:32 +0200 | [diff] [blame] | 1121 | if (v == NULL) { |
| 1122 | retval = NULL; |
| 1123 | break; |
| 1124 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1125 | if (is_interned) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1126 | PyUnicode_InternInPlace(&v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1127 | retval = v; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1128 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1129 | break; |
| 1130 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1131 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1132 | case TYPE_SMALL_TUPLE: |
| 1133 | n = (unsigned char) r_byte(p); |
| 1134 | goto _read_tuple; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1135 | case TYPE_TUPLE: |
| 1136 | n = r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1137 | if (PyErr_Occurred()) { |
| 1138 | retval = NULL; |
| 1139 | break; |
| 1140 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1141 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1142 | PyErr_SetString(PyExc_ValueError, "bad marshal data (tuple size out of range)"); |
| 1143 | retval = NULL; |
| 1144 | break; |
| 1145 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1146 | _read_tuple: |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1147 | v = PyTuple_New(n); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1148 | R_REF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1149 | if (v == NULL) { |
| 1150 | retval = NULL; |
| 1151 | break; |
| 1152 | } |
| 1153 | for (i = 0; i < n; i++) { |
| 1154 | v2 = r_object(p); |
| 1155 | if ( v2 == NULL ) { |
| 1156 | if (!PyErr_Occurred()) |
| 1157 | PyErr_SetString(PyExc_TypeError, |
| 1158 | "NULL object in marshal data for tuple"); |
| 1159 | Py_DECREF(v); |
| 1160 | v = NULL; |
| 1161 | break; |
| 1162 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1163 | PyTuple_SET_ITEM(v, i, v2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1164 | } |
| 1165 | retval = v; |
| 1166 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1167 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1168 | case TYPE_LIST: |
| 1169 | n = r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1170 | if (PyErr_Occurred()) { |
| 1171 | retval = NULL; |
| 1172 | break; |
| 1173 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1174 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1175 | PyErr_SetString(PyExc_ValueError, "bad marshal data (list size out of range)"); |
| 1176 | retval = NULL; |
| 1177 | break; |
| 1178 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1179 | v = PyList_New(n); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1180 | R_REF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1181 | if (v == NULL) { |
| 1182 | retval = NULL; |
| 1183 | break; |
| 1184 | } |
| 1185 | for (i = 0; i < n; i++) { |
| 1186 | v2 = r_object(p); |
| 1187 | if ( v2 == NULL ) { |
| 1188 | if (!PyErr_Occurred()) |
| 1189 | PyErr_SetString(PyExc_TypeError, |
| 1190 | "NULL object in marshal data for list"); |
| 1191 | Py_DECREF(v); |
| 1192 | v = NULL; |
| 1193 | break; |
| 1194 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1195 | PyList_SET_ITEM(v, i, v2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1196 | } |
| 1197 | retval = v; |
| 1198 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1199 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1200 | case TYPE_DICT: |
| 1201 | v = PyDict_New(); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1202 | R_REF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1203 | if (v == NULL) { |
| 1204 | retval = NULL; |
| 1205 | break; |
| 1206 | } |
| 1207 | for (;;) { |
| 1208 | PyObject *key, *val; |
| 1209 | key = r_object(p); |
| 1210 | if (key == NULL) |
| 1211 | break; |
| 1212 | val = r_object(p); |
| 1213 | if (val != NULL) |
| 1214 | PyDict_SetItem(v, key, val); |
| 1215 | Py_DECREF(key); |
| 1216 | Py_XDECREF(val); |
| 1217 | } |
| 1218 | if (PyErr_Occurred()) { |
| 1219 | Py_DECREF(v); |
| 1220 | v = NULL; |
| 1221 | } |
| 1222 | retval = v; |
| 1223 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1224 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1225 | case TYPE_SET: |
| 1226 | case TYPE_FROZENSET: |
| 1227 | n = r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1228 | if (PyErr_Occurred()) { |
| 1229 | retval = NULL; |
| 1230 | break; |
| 1231 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1232 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1233 | PyErr_SetString(PyExc_ValueError, "bad marshal data (set size out of range)"); |
| 1234 | retval = NULL; |
| 1235 | break; |
| 1236 | } |
| 1237 | v = (type == TYPE_SET) ? PySet_New(NULL) : PyFrozenSet_New(NULL); |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 1238 | if (type == TYPE_SET) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1239 | R_REF(v); |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 1240 | } else { |
| 1241 | /* must use delayed registration of frozensets because they must |
| 1242 | * be init with a refcount of 1 |
| 1243 | */ |
| 1244 | idx = r_ref_reserve(flag, p); |
| 1245 | if (idx < 0) |
| 1246 | Py_CLEAR(v); /* signal error */ |
| 1247 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1248 | if (v == NULL) { |
| 1249 | retval = NULL; |
| 1250 | break; |
| 1251 | } |
| 1252 | for (i = 0; i < n; i++) { |
| 1253 | v2 = r_object(p); |
| 1254 | if ( v2 == NULL ) { |
| 1255 | if (!PyErr_Occurred()) |
| 1256 | PyErr_SetString(PyExc_TypeError, |
| 1257 | "NULL object in marshal data for set"); |
| 1258 | Py_DECREF(v); |
| 1259 | v = NULL; |
| 1260 | break; |
| 1261 | } |
| 1262 | if (PySet_Add(v, v2) == -1) { |
| 1263 | Py_DECREF(v); |
| 1264 | Py_DECREF(v2); |
| 1265 | v = NULL; |
| 1266 | break; |
| 1267 | } |
| 1268 | Py_DECREF(v2); |
| 1269 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1270 | if (type != TYPE_SET) |
| 1271 | v = r_ref_insert(v, idx, flag, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1272 | retval = v; |
| 1273 | break; |
Raymond Hettinger | a422c34 | 2005-01-11 03:03:27 +0000 | [diff] [blame] | 1274 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1275 | case TYPE_CODE: |
| 1276 | { |
| 1277 | int argcount; |
| 1278 | int kwonlyargcount; |
| 1279 | int nlocals; |
| 1280 | int stacksize; |
| 1281 | int flags; |
| 1282 | PyObject *code = NULL; |
| 1283 | PyObject *consts = NULL; |
| 1284 | PyObject *names = NULL; |
| 1285 | PyObject *varnames = NULL; |
| 1286 | PyObject *freevars = NULL; |
| 1287 | PyObject *cellvars = NULL; |
| 1288 | PyObject *filename = NULL; |
| 1289 | PyObject *name = NULL; |
| 1290 | int firstlineno; |
| 1291 | PyObject *lnotab = NULL; |
Antoine Pitrou | e9bbe8b | 2013-04-13 22:41:09 +0200 | [diff] [blame] | 1292 | |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 1293 | idx = r_ref_reserve(flag, p); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1294 | if (idx < 0) { |
| 1295 | retval = NULL; |
| 1296 | break; |
| 1297 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1298 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1299 | v = NULL; |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 1300 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1301 | /* XXX ignore long->int overflows for now */ |
| 1302 | argcount = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1303 | if (PyErr_Occurred()) |
| 1304 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1305 | kwonlyargcount = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1306 | if (PyErr_Occurred()) |
| 1307 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1308 | nlocals = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1309 | if (PyErr_Occurred()) |
| 1310 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1311 | stacksize = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1312 | if (PyErr_Occurred()) |
| 1313 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1314 | flags = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1315 | if (PyErr_Occurred()) |
| 1316 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1317 | code = r_object(p); |
| 1318 | if (code == NULL) |
| 1319 | goto code_error; |
| 1320 | consts = r_object(p); |
| 1321 | if (consts == NULL) |
| 1322 | goto code_error; |
| 1323 | names = r_object(p); |
| 1324 | if (names == NULL) |
| 1325 | goto code_error; |
| 1326 | varnames = r_object(p); |
| 1327 | if (varnames == NULL) |
| 1328 | goto code_error; |
| 1329 | freevars = r_object(p); |
| 1330 | if (freevars == NULL) |
| 1331 | goto code_error; |
| 1332 | cellvars = r_object(p); |
| 1333 | if (cellvars == NULL) |
| 1334 | goto code_error; |
| 1335 | filename = r_object(p); |
| 1336 | if (filename == NULL) |
| 1337 | goto code_error; |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 1338 | if (PyUnicode_CheckExact(filename)) { |
| 1339 | if (p->current_filename != NULL) { |
| 1340 | if (!PyUnicode_Compare(filename, p->current_filename)) { |
| 1341 | Py_DECREF(filename); |
| 1342 | Py_INCREF(p->current_filename); |
| 1343 | filename = p->current_filename; |
| 1344 | } |
| 1345 | } |
| 1346 | else { |
| 1347 | p->current_filename = filename; |
| 1348 | } |
| 1349 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1350 | name = r_object(p); |
| 1351 | if (name == NULL) |
| 1352 | goto code_error; |
| 1353 | firstlineno = (int)r_long(p); |
| 1354 | lnotab = r_object(p); |
| 1355 | if (lnotab == NULL) |
| 1356 | goto code_error; |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 1357 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1358 | v = (PyObject *) PyCode_New( |
| 1359 | argcount, kwonlyargcount, |
| 1360 | nlocals, stacksize, flags, |
| 1361 | code, consts, names, varnames, |
| 1362 | freevars, cellvars, filename, name, |
| 1363 | firstlineno, lnotab); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1364 | v = r_ref_insert(v, idx, flag, p); |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1365 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1366 | code_error: |
| 1367 | Py_XDECREF(code); |
| 1368 | Py_XDECREF(consts); |
| 1369 | Py_XDECREF(names); |
| 1370 | Py_XDECREF(varnames); |
| 1371 | Py_XDECREF(freevars); |
| 1372 | Py_XDECREF(cellvars); |
| 1373 | Py_XDECREF(filename); |
| 1374 | Py_XDECREF(name); |
| 1375 | Py_XDECREF(lnotab); |
| 1376 | } |
| 1377 | retval = v; |
| 1378 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1379 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1380 | case TYPE_REF: |
| 1381 | n = r_long(p); |
| 1382 | if (n < 0 || n >= PyList_GET_SIZE(p->refs)) { |
| 1383 | PyErr_SetString(PyExc_ValueError, "bad marshal data (invalid reference)"); |
| 1384 | retval = NULL; |
| 1385 | break; |
| 1386 | } |
| 1387 | v = PyList_GET_ITEM(p->refs, n); |
| 1388 | if (v == Py_None) { |
| 1389 | PyErr_SetString(PyExc_ValueError, "bad marshal data (invalid reference)"); |
| 1390 | retval = NULL; |
| 1391 | break; |
| 1392 | } |
| 1393 | Py_INCREF(v); |
| 1394 | retval = v; |
| 1395 | break; |
| 1396 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1397 | default: |
| 1398 | /* Bogus data got written, which isn't ideal. |
| 1399 | This will let you keep working and recover. */ |
| 1400 | PyErr_SetString(PyExc_ValueError, "bad marshal data (unknown type code)"); |
| 1401 | retval = NULL; |
| 1402 | break; |
| 1403 | |
| 1404 | } |
| 1405 | p->depth--; |
| 1406 | return retval; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1407 | } |
| 1408 | |
Neal Norwitz | d85c452 | 2004-06-13 20:31:49 +0000 | [diff] [blame] | 1409 | static PyObject * |
Armin Rigo | 01ab279 | 2004-03-26 15:09:27 +0000 | [diff] [blame] | 1410 | read_object(RFILE *p) |
| 1411 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1412 | PyObject *v; |
| 1413 | if (PyErr_Occurred()) { |
| 1414 | fprintf(stderr, "XXX readobject called with exception set\n"); |
| 1415 | return NULL; |
| 1416 | } |
| 1417 | v = r_object(p); |
| 1418 | if (v == NULL && !PyErr_Occurred()) |
| 1419 | PyErr_SetString(PyExc_TypeError, "NULL object in marshal data for object"); |
| 1420 | return v; |
Armin Rigo | 01ab279 | 2004-03-26 15:09:27 +0000 | [diff] [blame] | 1421 | } |
| 1422 | |
Guido van Rossum | b8cf3e6 | 2001-10-19 01:46:21 +0000 | [diff] [blame] | 1423 | int |
| 1424 | PyMarshal_ReadShortFromFile(FILE *fp) |
| 1425 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1426 | RFILE rf; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1427 | int res; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1428 | assert(fp); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1429 | rf.readable = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1430 | rf.fp = fp; |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 1431 | rf.current_filename = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1432 | rf.end = rf.ptr = NULL; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1433 | rf.buf = NULL; |
| 1434 | res = r_short(&rf); |
| 1435 | if (rf.buf != NULL) |
| 1436 | PyMem_FREE(rf.buf); |
| 1437 | return res; |
Guido van Rossum | b8cf3e6 | 2001-10-19 01:46:21 +0000 | [diff] [blame] | 1438 | } |
| 1439 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1440 | long |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1441 | PyMarshal_ReadLongFromFile(FILE *fp) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1442 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1443 | RFILE rf; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1444 | long res; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1445 | rf.fp = fp; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1446 | rf.readable = NULL; |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 1447 | rf.current_filename = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1448 | rf.ptr = rf.end = NULL; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1449 | rf.buf = NULL; |
| 1450 | res = r_long(&rf); |
| 1451 | if (rf.buf != NULL) |
| 1452 | PyMem_FREE(rf.buf); |
| 1453 | return res; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1454 | } |
| 1455 | |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1456 | #ifdef HAVE_FSTAT |
| 1457 | /* Return size of file in bytes; < 0 if unknown. */ |
| 1458 | static off_t |
| 1459 | getfilesize(FILE *fp) |
| 1460 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1461 | struct stat st; |
| 1462 | if (fstat(fileno(fp), &st) != 0) |
| 1463 | return -1; |
| 1464 | else |
| 1465 | return st.st_size; |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1466 | } |
| 1467 | #endif |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1468 | |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1469 | /* If we can get the size of the file up-front, and it's reasonably small, |
| 1470 | * read it in one gulp and delegate to ...FromString() instead. Much quicker |
| 1471 | * than reading a byte at a time from file; speeds .pyc imports. |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1472 | * CAUTION: since this may read the entire remainder of the file, don't |
| 1473 | * call it unless you know you're done with the file. |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1474 | */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1475 | PyObject * |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1476 | PyMarshal_ReadLastObjectFromFile(FILE *fp) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1477 | { |
Antoine Pitrou | 5bc7ec9 | 2010-04-21 22:56:22 +0000 | [diff] [blame] | 1478 | /* REASONABLE_FILE_LIMIT is by defn something big enough for Tkinter.pyc. */ |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1479 | #define REASONABLE_FILE_LIMIT (1L << 18) |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1480 | #ifdef HAVE_FSTAT |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1481 | off_t filesize; |
| 1482 | filesize = getfilesize(fp); |
| 1483 | if (filesize > 0 && filesize <= REASONABLE_FILE_LIMIT) { |
| 1484 | char* pBuf = (char *)PyMem_MALLOC(filesize); |
| 1485 | if (pBuf != NULL) { |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1486 | size_t n = fread(pBuf, 1, (size_t)filesize, fp); |
| 1487 | PyObject* v = PyMarshal_ReadObjectFromString(pBuf, n); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1488 | PyMem_FREE(pBuf); |
| 1489 | return v; |
| 1490 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1491 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1492 | } |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1493 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1494 | /* We don't have fstat, or we do but the file is larger than |
| 1495 | * REASONABLE_FILE_LIMIT or malloc failed -- read a byte at a time. |
| 1496 | */ |
| 1497 | return PyMarshal_ReadObjectFromFile(fp); |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1498 | |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1499 | #undef REASONABLE_FILE_LIMIT |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1500 | } |
| 1501 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1502 | PyObject * |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1503 | PyMarshal_ReadObjectFromFile(FILE *fp) |
| 1504 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1505 | RFILE rf; |
| 1506 | PyObject *result; |
| 1507 | rf.fp = fp; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1508 | rf.readable = NULL; |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 1509 | rf.current_filename = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1510 | rf.depth = 0; |
| 1511 | rf.ptr = rf.end = NULL; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1512 | rf.buf = NULL; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1513 | rf.refs = PyList_New(0); |
| 1514 | if (rf.refs == NULL) |
| 1515 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1516 | result = r_object(&rf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1517 | Py_DECREF(rf.refs); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1518 | if (rf.buf != NULL) |
| 1519 | PyMem_FREE(rf.buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1520 | return result; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1521 | } |
| 1522 | |
| 1523 | PyObject * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1524 | PyMarshal_ReadObjectFromString(char *str, Py_ssize_t len) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1525 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1526 | RFILE rf; |
| 1527 | PyObject *result; |
| 1528 | rf.fp = NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1529 | rf.readable = NULL; |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 1530 | rf.current_filename = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1531 | rf.ptr = str; |
| 1532 | rf.end = str + len; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1533 | rf.buf = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1534 | rf.depth = 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1535 | rf.refs = PyList_New(0); |
| 1536 | if (rf.refs == NULL) |
| 1537 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1538 | result = r_object(&rf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1539 | Py_DECREF(rf.refs); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1540 | if (rf.buf != NULL) |
| 1541 | PyMem_FREE(rf.buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1542 | return result; |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1543 | } |
| 1544 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1545 | PyObject * |
Martin v. Löwis | ef82d2f | 2004-06-27 16:51:46 +0000 | [diff] [blame] | 1546 | PyMarshal_WriteObjectToString(PyObject *x, int version) |
Guido van Rossum | 3f3bb3d | 1996-08-19 22:07:17 +0000 | [diff] [blame] | 1547 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1548 | WFILE wf; |
Guido van Rossum | e6d3904 | 2007-05-09 00:01:30 +0000 | [diff] [blame] | 1549 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1550 | wf.fp = NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1551 | wf.readable = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1552 | wf.str = PyBytes_FromStringAndSize((char *)NULL, 50); |
| 1553 | if (wf.str == NULL) |
| 1554 | return NULL; |
| 1555 | wf.ptr = PyBytes_AS_STRING((PyBytesObject *)wf.str); |
| 1556 | wf.end = wf.ptr + PyBytes_Size(wf.str); |
| 1557 | wf.error = WFERR_OK; |
| 1558 | wf.depth = 0; |
| 1559 | wf.version = version; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1560 | if (version >= 3) { |
| 1561 | if ((wf.refs = PyDict_New()) == NULL) |
| 1562 | return NULL; |
| 1563 | } else |
| 1564 | wf.refs = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1565 | w_object(x, &wf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1566 | Py_XDECREF(wf.refs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1567 | if (wf.str != NULL) { |
| 1568 | char *base = PyBytes_AS_STRING((PyBytesObject *)wf.str); |
| 1569 | if (wf.ptr - base > PY_SSIZE_T_MAX) { |
| 1570 | Py_DECREF(wf.str); |
| 1571 | PyErr_SetString(PyExc_OverflowError, |
| 1572 | "too much marshal data for a string"); |
| 1573 | return NULL; |
| 1574 | } |
| 1575 | if (_PyBytes_Resize(&wf.str, (Py_ssize_t)(wf.ptr - base)) < 0) |
| 1576 | return NULL; |
| 1577 | } |
| 1578 | if (wf.error != WFERR_OK) { |
| 1579 | Py_XDECREF(wf.str); |
| 1580 | if (wf.error == WFERR_NOMEMORY) |
| 1581 | PyErr_NoMemory(); |
| 1582 | else |
| 1583 | PyErr_SetString(PyExc_ValueError, |
| 1584 | (wf.error==WFERR_UNMARSHALLABLE)?"unmarshallable object" |
| 1585 | :"object too deeply nested to marshal"); |
| 1586 | return NULL; |
| 1587 | } |
Antoine Pitrou | 1c13f84 | 2012-03-02 18:22:23 +0100 | [diff] [blame] | 1588 | return wf.str; |
Guido van Rossum | 3f3bb3d | 1996-08-19 22:07:17 +0000 | [diff] [blame] | 1589 | } |
| 1590 | |
Guido van Rossum | 64b4552 | 1991-06-07 13:58:22 +0000 | [diff] [blame] | 1591 | /* And an interface for Python programs... */ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1592 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1593 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1594 | marshal_dump(PyObject *self, PyObject *args) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1595 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1596 | /* XXX Quick hack -- need to do this differently */ |
| 1597 | PyObject *x; |
| 1598 | PyObject *f; |
| 1599 | int version = Py_MARSHAL_VERSION; |
| 1600 | PyObject *s; |
| 1601 | PyObject *res; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 1602 | _Py_IDENTIFIER(write); |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 1603 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1604 | if (!PyArg_ParseTuple(args, "OO|i:dump", &x, &f, &version)) |
| 1605 | return NULL; |
| 1606 | s = PyMarshal_WriteObjectToString(x, version); |
| 1607 | if (s == NULL) |
| 1608 | return NULL; |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 1609 | res = _PyObject_CallMethodId(f, &PyId_write, "O", s); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1610 | Py_DECREF(s); |
| 1611 | return res; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1612 | } |
| 1613 | |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1614 | PyDoc_STRVAR(dump_doc, |
| 1615 | "dump(value, file[, version])\n\ |
| 1616 | \n\ |
| 1617 | Write the value on the open file. The value must be a supported type.\n\ |
| 1618 | The file must be an open file object such as sys.stdout or returned by\n\ |
| 1619 | open() or os.popen(). It must be opened in binary mode ('wb' or 'w+b').\n\ |
| 1620 | \n\ |
| 1621 | If the value has (or contains an object that has) an unsupported type, a\n\ |
| 1622 | ValueError exception is raised — but garbage data will also be written\n\ |
| 1623 | to the file. The object will not be properly read back by load()\n\ |
| 1624 | \n\ |
| 1625 | The version argument indicates the data format that dump should use."); |
| 1626 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1627 | static PyObject * |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 1628 | marshal_load(PyObject *self, PyObject *f) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1629 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1630 | PyObject *data, *result; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 1631 | _Py_IDENTIFIER(read); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1632 | RFILE rf; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1633 | |
| 1634 | /* |
| 1635 | * Make a call to the read method, but read zero bytes. |
| 1636 | * This is to ensure that the object passed in at least |
| 1637 | * has a read method which returns bytes. |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1638 | * This can be removed if we guarantee good error handling |
| 1639 | * for r_string() |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1640 | */ |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 1641 | data = _PyObject_CallMethodId(f, &PyId_read, "i", 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1642 | if (data == NULL) |
| 1643 | return NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1644 | if (!PyBytes_Check(data)) { |
| 1645 | PyErr_Format(PyExc_TypeError, |
| 1646 | "f.read() returned not bytes but %.100s", |
| 1647 | data->ob_type->tp_name); |
| 1648 | result = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1649 | } |
| 1650 | else { |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1651 | rf.depth = 0; |
| 1652 | rf.fp = NULL; |
| 1653 | rf.readable = f; |
Vinay Sajip | aac0f75 | 2011-07-02 18:42:21 +0100 | [diff] [blame] | 1654 | rf.current_filename = NULL; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1655 | rf.ptr = rf.end = NULL; |
| 1656 | rf.buf = NULL; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1657 | if ((rf.refs = PyList_New(0)) != NULL) { |
| 1658 | result = read_object(&rf); |
| 1659 | Py_DECREF(rf.refs); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame^] | 1660 | if (rf.buf != NULL) |
| 1661 | PyMem_FREE(rf.buf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1662 | } else |
| 1663 | result = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1664 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1665 | Py_DECREF(data); |
| 1666 | return result; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1667 | } |
| 1668 | |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1669 | PyDoc_STRVAR(load_doc, |
| 1670 | "load(file)\n\ |
| 1671 | \n\ |
| 1672 | Read one value from the open file and return it. If no valid value is\n\ |
| 1673 | read (e.g. because the data has a different Python version’s\n\ |
| 1674 | incompatible marshal format), raise EOFError, ValueError or TypeError.\n\ |
| 1675 | The file must be an open file object opened in binary mode ('rb' or\n\ |
| 1676 | 'r+b').\n\ |
| 1677 | \n\ |
| 1678 | Note: If an object containing an unsupported type was marshalled with\n\ |
| 1679 | dump(), load() will substitute None for the unmarshallable type."); |
| 1680 | |
| 1681 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1682 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1683 | marshal_dumps(PyObject *self, PyObject *args) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1684 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1685 | PyObject *x; |
| 1686 | int version = Py_MARSHAL_VERSION; |
| 1687 | if (!PyArg_ParseTuple(args, "O|i:dumps", &x, &version)) |
| 1688 | return NULL; |
| 1689 | return PyMarshal_WriteObjectToString(x, version); |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1690 | } |
| 1691 | |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1692 | PyDoc_STRVAR(dumps_doc, |
| 1693 | "dumps(value[, version])\n\ |
| 1694 | \n\ |
| 1695 | Return the string that would be written to a file by dump(value, file).\n\ |
| 1696 | The value must be a supported type. Raise a ValueError exception if\n\ |
| 1697 | value has (or contains an object that has) an unsupported type.\n\ |
| 1698 | \n\ |
| 1699 | The version argument indicates the data format that dumps should use."); |
| 1700 | |
| 1701 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1702 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1703 | marshal_loads(PyObject *self, PyObject *args) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1704 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1705 | RFILE rf; |
| 1706 | Py_buffer p; |
| 1707 | char *s; |
| 1708 | Py_ssize_t n; |
| 1709 | PyObject* result; |
Antoine Pitrou | 4a90ef0 | 2012-03-03 02:35:32 +0100 | [diff] [blame] | 1710 | if (!PyArg_ParseTuple(args, "y*:loads", &p)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1711 | return NULL; |
| 1712 | s = p.buf; |
| 1713 | n = p.len; |
| 1714 | rf.fp = NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1715 | rf.readable = NULL; |
Benjamin Peterson | 43b0686 | 2011-05-27 09:08:01 -0500 | [diff] [blame] | 1716 | rf.current_filename = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1717 | rf.ptr = s; |
| 1718 | rf.end = s + n; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1719 | rf.depth = 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1720 | if ((rf.refs = PyList_New(0)) == NULL) |
| 1721 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1722 | result = read_object(&rf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1723 | PyBuffer_Release(&p); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1724 | Py_DECREF(rf.refs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1725 | return result; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1726 | } |
| 1727 | |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1728 | PyDoc_STRVAR(loads_doc, |
Antoine Pitrou | 4a90ef0 | 2012-03-03 02:35:32 +0100 | [diff] [blame] | 1729 | "loads(bytes)\n\ |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1730 | \n\ |
Antoine Pitrou | 4a90ef0 | 2012-03-03 02:35:32 +0100 | [diff] [blame] | 1731 | Convert the bytes object to a value. If no valid value is found, raise\n\ |
| 1732 | EOFError, ValueError or TypeError. Extra characters in the input are\n\ |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1733 | ignored."); |
| 1734 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1735 | static PyMethodDef marshal_methods[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1736 | {"dump", marshal_dump, METH_VARARGS, dump_doc}, |
| 1737 | {"load", marshal_load, METH_O, load_doc}, |
| 1738 | {"dumps", marshal_dumps, METH_VARARGS, dumps_doc}, |
| 1739 | {"loads", marshal_loads, METH_VARARGS, loads_doc}, |
| 1740 | {NULL, NULL} /* sentinel */ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1741 | }; |
| 1742 | |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1743 | |
| 1744 | PyDoc_STRVAR(module_doc, |
| 1745 | "This module contains functions that can read and write Python values in\n\ |
| 1746 | a binary format. The format is specific to Python, but independent of\n\ |
| 1747 | machine architecture issues.\n\ |
| 1748 | \n\ |
| 1749 | Not all Python object types are supported; in general, only objects\n\ |
| 1750 | whose value is independent from a particular invocation of Python can be\n\ |
| 1751 | written and read by this module. The following types are supported:\n\ |
| 1752 | None, integers, floating point numbers, strings, bytes, bytearrays,\n\ |
| 1753 | tuples, lists, sets, dictionaries, and code objects, where it\n\ |
| 1754 | should be understood that tuples, lists and dictionaries are only\n\ |
| 1755 | supported as long as the values contained therein are themselves\n\ |
| 1756 | supported; and recursive lists and dictionaries should not be written\n\ |
| 1757 | (they will cause infinite loops).\n\ |
| 1758 | \n\ |
| 1759 | Variables:\n\ |
| 1760 | \n\ |
| 1761 | version -- indicates the format that the module uses. Version 0 is the\n\ |
| 1762 | historical format, version 1 shares interned strings and version 2\n\ |
| 1763 | uses a binary format for floating point numbers.\n\ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1764 | Version 3 shares common object references (New in version 3.4).\n\ |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1765 | \n\ |
| 1766 | Functions:\n\ |
| 1767 | \n\ |
| 1768 | dump() -- write value to a file\n\ |
| 1769 | load() -- read value from a file\n\ |
| 1770 | dumps() -- write value to a string\n\ |
| 1771 | loads() -- read value from a string"); |
| 1772 | |
| 1773 | |
| 1774 | |
Brett Cannon | 429ef65 | 2008-06-27 00:35:35 +0000 | [diff] [blame] | 1775 | static struct PyModuleDef marshalmodule = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1776 | PyModuleDef_HEAD_INIT, |
| 1777 | "marshal", |
| 1778 | module_doc, |
| 1779 | 0, |
| 1780 | marshal_methods, |
| 1781 | NULL, |
| 1782 | NULL, |
| 1783 | NULL, |
| 1784 | NULL |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 1785 | }; |
| 1786 | |
Jason Tishler | 6bc06ec | 2003-09-04 11:59:50 +0000 | [diff] [blame] | 1787 | PyMODINIT_FUNC |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1788 | PyMarshal_Init(void) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1789 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1790 | PyObject *mod = PyModule_Create(&marshalmodule); |
| 1791 | if (mod == NULL) |
| 1792 | return NULL; |
| 1793 | PyModule_AddIntConstant(mod, "version", Py_MARSHAL_VERSION); |
| 1794 | return mod; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1795 | } |