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" |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 15 | #include "../Modules/hashtable.h" |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 16 | |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 17 | /*[clinic input] |
| 18 | module marshal |
| 19 | [clinic start generated code]*/ |
| 20 | /*[clinic end generated code: output=da39a3ee5e6b4b0d input=c982b7930dee17db]*/ |
| 21 | |
| 22 | #include "clinic/marshal.c.h" |
| 23 | |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 24 | /* High water mark to determine when the marshalled object is dangerously deep |
| 25 | * and risks coring the interpreter. When the object stack gets this deep, |
| 26 | * raise an exception instead of continuing. |
Guido van Rossum | 63175a1 | 2007-08-29 20:39:13 +0000 | [diff] [blame] | 27 | * On Windows debug builds, reduce this value. |
Steve Dower | 2a4a62b | 2018-06-04 13:25:00 -0700 | [diff] [blame] | 28 | * |
| 29 | * BUG: https://bugs.python.org/issue33720 |
| 30 | * On Windows PGO builds, the r_object function overallocates its stack and |
| 31 | * can cause a stack overflow. We reduce the maximum depth for all Windows |
| 32 | * releases to protect against this. |
| 33 | * #if defined(MS_WINDOWS) && defined(_DEBUG) |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 34 | */ |
Steve Dower | 2a4a62b | 2018-06-04 13:25:00 -0700 | [diff] [blame] | 35 | #if defined(MS_WINDOWS) |
Steve Dower | f6c69e6 | 2014-11-01 15:15:16 -0700 | [diff] [blame] | 36 | #define MAX_MARSHAL_STACK_DEPTH 1000 |
Guido van Rossum | 63175a1 | 2007-08-29 20:39:13 +0000 | [diff] [blame] | 37 | #else |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 38 | #define MAX_MARSHAL_STACK_DEPTH 2000 |
Guido van Rossum | 63175a1 | 2007-08-29 20:39:13 +0000 | [diff] [blame] | 39 | #endif |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 40 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 41 | #define TYPE_NULL '0' |
| 42 | #define TYPE_NONE 'N' |
| 43 | #define TYPE_FALSE 'F' |
| 44 | #define TYPE_TRUE 'T' |
| 45 | #define TYPE_STOPITER 'S' |
| 46 | #define TYPE_ELLIPSIS '.' |
| 47 | #define TYPE_INT 'i' |
Serhiy Storchaka | 00987f6 | 2017-11-15 17:41:05 +0200 | [diff] [blame] | 48 | /* TYPE_INT64 is not generated anymore. |
| 49 | Supported for backward compatibility only. */ |
| 50 | #define TYPE_INT64 'I' |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 51 | #define TYPE_FLOAT 'f' |
| 52 | #define TYPE_BINARY_FLOAT 'g' |
| 53 | #define TYPE_COMPLEX 'x' |
| 54 | #define TYPE_BINARY_COMPLEX 'y' |
| 55 | #define TYPE_LONG 'l' |
| 56 | #define TYPE_STRING 's' |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 57 | #define TYPE_INTERNED 't' |
| 58 | #define TYPE_REF 'r' |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 59 | #define TYPE_TUPLE '(' |
| 60 | #define TYPE_LIST '[' |
| 61 | #define TYPE_DICT '{' |
| 62 | #define TYPE_CODE 'c' |
| 63 | #define TYPE_UNICODE 'u' |
| 64 | #define TYPE_UNKNOWN '?' |
| 65 | #define TYPE_SET '<' |
| 66 | #define TYPE_FROZENSET '>' |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 67 | #define FLAG_REF '\x80' /* with a type, add obj to index */ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 68 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 69 | #define TYPE_ASCII 'a' |
| 70 | #define TYPE_ASCII_INTERNED 'A' |
| 71 | #define TYPE_SMALL_TUPLE ')' |
| 72 | #define TYPE_SHORT_ASCII 'z' |
| 73 | #define TYPE_SHORT_ASCII_INTERNED 'Z' |
| 74 | |
Eric Smith | b1a03cf | 2009-04-21 11:57:38 +0000 | [diff] [blame] | 75 | #define WFERR_OK 0 |
| 76 | #define WFERR_UNMARSHALLABLE 1 |
| 77 | #define WFERR_NESTEDTOODEEP 2 |
| 78 | #define WFERR_NOMEMORY 3 |
| 79 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 80 | typedef struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 81 | FILE *fp; |
| 82 | int error; /* see WFERR_* values */ |
| 83 | int depth; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 84 | PyObject *str; |
| 85 | char *ptr; |
| 86 | char *end; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 87 | char *buf; |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 88 | _Py_hashtable_t *hashtable; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 89 | int version; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 90 | } WFILE; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 91 | |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 92 | #define w_byte(c, p) do { \ |
| 93 | if ((p)->ptr != (p)->end || w_reserve((p), 1)) \ |
| 94 | *(p)->ptr++ = (c); \ |
| 95 | } while(0) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 96 | |
| 97 | static void |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 98 | w_flush(WFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 99 | { |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 100 | assert(p->fp != NULL); |
| 101 | fwrite(p->buf, 1, p->ptr - p->buf, p->fp); |
| 102 | p->ptr = p->buf; |
| 103 | } |
| 104 | |
| 105 | static int |
| 106 | w_reserve(WFILE *p, Py_ssize_t needed) |
| 107 | { |
| 108 | Py_ssize_t pos, size, delta; |
| 109 | if (p->ptr == NULL) |
| 110 | return 0; /* An error already occurred */ |
| 111 | if (p->fp != NULL) { |
| 112 | w_flush(p); |
| 113 | return needed <= p->end - p->ptr; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 114 | } |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 115 | assert(p->str != NULL); |
| 116 | pos = p->ptr - p->buf; |
| 117 | size = PyBytes_Size(p->str); |
| 118 | if (size > 16*1024*1024) |
| 119 | delta = (size >> 3); /* 12.5% overallocation */ |
| 120 | else |
| 121 | delta = size + 1024; |
| 122 | delta = Py_MAX(delta, needed); |
| 123 | if (delta > PY_SSIZE_T_MAX - size) { |
| 124 | p->error = WFERR_NOMEMORY; |
| 125 | return 0; |
| 126 | } |
| 127 | size += delta; |
| 128 | if (_PyBytes_Resize(&p->str, size) != 0) { |
| 129 | p->ptr = p->buf = p->end = NULL; |
| 130 | return 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 131 | } |
| 132 | else { |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 133 | p->buf = PyBytes_AS_STRING(p->str); |
| 134 | p->ptr = p->buf + pos; |
| 135 | p->end = p->buf + size; |
| 136 | return 1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 137 | } |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | static void |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 141 | w_string(const char *s, Py_ssize_t n, WFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 142 | { |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 143 | Py_ssize_t m; |
| 144 | if (!n || p->ptr == NULL) |
| 145 | return; |
| 146 | m = p->end - p->ptr; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 147 | if (p->fp != NULL) { |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 148 | if (n <= m) { |
Christian Heimes | f051e43 | 2016-09-13 20:22:02 +0200 | [diff] [blame] | 149 | memcpy(p->ptr, s, n); |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 150 | p->ptr += n; |
| 151 | } |
| 152 | else { |
| 153 | w_flush(p); |
| 154 | fwrite(s, 1, n, p->fp); |
| 155 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 156 | } |
| 157 | else { |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 158 | if (n <= m || w_reserve(p, n - m)) { |
Christian Heimes | f051e43 | 2016-09-13 20:22:02 +0200 | [diff] [blame] | 159 | memcpy(p->ptr, s, n); |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 160 | p->ptr += n; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 161 | } |
| 162 | } |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 166 | w_short(int x, WFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 167 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 168 | w_byte((char)( x & 0xff), p); |
| 169 | w_byte((char)((x>> 8) & 0xff), p); |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 170 | } |
| 171 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 172 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 173 | w_long(long x, WFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 174 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 175 | w_byte((char)( x & 0xff), p); |
| 176 | w_byte((char)((x>> 8) & 0xff), p); |
| 177 | w_byte((char)((x>>16) & 0xff), p); |
| 178 | w_byte((char)((x>>24) & 0xff), p); |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 179 | } |
| 180 | |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 181 | #define SIZE32_MAX 0x7FFFFFFF |
| 182 | |
| 183 | #if SIZEOF_SIZE_T > 4 |
| 184 | # define W_SIZE(n, p) do { \ |
| 185 | if ((n) > SIZE32_MAX) { \ |
| 186 | (p)->depth--; \ |
| 187 | (p)->error = WFERR_UNMARSHALLABLE; \ |
| 188 | return; \ |
| 189 | } \ |
| 190 | w_long((long)(n), p); \ |
| 191 | } while(0) |
| 192 | #else |
| 193 | # define W_SIZE w_long |
| 194 | #endif |
| 195 | |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 196 | static void |
| 197 | w_pstring(const char *s, Py_ssize_t n, WFILE *p) |
| 198 | { |
| 199 | W_SIZE(n, p); |
| 200 | w_string(s, n, p); |
| 201 | } |
| 202 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 203 | static void |
| 204 | w_short_pstring(const char *s, Py_ssize_t n, WFILE *p) |
| 205 | { |
Antoine Pitrou | b30f271 | 2013-10-12 23:14:47 +0200 | [diff] [blame] | 206 | w_byte(Py_SAFE_DOWNCAST(n, Py_ssize_t, unsigned char), p); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 207 | w_string(s, n, p); |
| 208 | } |
| 209 | |
Serhiy Storchaka | 9594942 | 2013-08-27 19:40:23 +0300 | [diff] [blame] | 210 | /* 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] | 211 | 2**15; for the sake of portability we'll always read and write them in base |
| 212 | exactly 2**15. */ |
| 213 | |
| 214 | #define PyLong_MARSHAL_SHIFT 15 |
| 215 | #define PyLong_MARSHAL_BASE ((short)1 << PyLong_MARSHAL_SHIFT) |
| 216 | #define PyLong_MARSHAL_MASK (PyLong_MARSHAL_BASE - 1) |
| 217 | #if PyLong_SHIFT % PyLong_MARSHAL_SHIFT != 0 |
| 218 | #error "PyLong_SHIFT must be a multiple of PyLong_MARSHAL_SHIFT" |
| 219 | #endif |
| 220 | #define PyLong_MARSHAL_RATIO (PyLong_SHIFT / PyLong_MARSHAL_SHIFT) |
| 221 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 222 | #define W_TYPE(t, p) do { \ |
| 223 | w_byte((t) | flag, (p)); \ |
| 224 | } while(0) |
| 225 | |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 226 | static void |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 227 | w_PyLong(const PyLongObject *ob, char flag, WFILE *p) |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 228 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 229 | Py_ssize_t i, j, n, l; |
| 230 | digit d; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 231 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 232 | W_TYPE(TYPE_LONG, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 233 | if (Py_SIZE(ob) == 0) { |
| 234 | w_long((long)0, p); |
| 235 | return; |
| 236 | } |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 237 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 238 | /* set l to number of base PyLong_MARSHAL_BASE digits */ |
Victor Stinner | 45e8e2f | 2014-05-14 17:24:35 +0200 | [diff] [blame] | 239 | n = Py_ABS(Py_SIZE(ob)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 240 | l = (n-1) * PyLong_MARSHAL_RATIO; |
| 241 | d = ob->ob_digit[n-1]; |
| 242 | assert(d != 0); /* a PyLong is always normalized */ |
| 243 | do { |
| 244 | d >>= PyLong_MARSHAL_SHIFT; |
| 245 | l++; |
| 246 | } while (d != 0); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 247 | if (l > SIZE32_MAX) { |
| 248 | p->depth--; |
| 249 | p->error = WFERR_UNMARSHALLABLE; |
| 250 | return; |
| 251 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 252 | w_long((long)(Py_SIZE(ob) > 0 ? l : -l), p); |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 253 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 254 | for (i=0; i < n-1; i++) { |
| 255 | d = ob->ob_digit[i]; |
| 256 | for (j=0; j < PyLong_MARSHAL_RATIO; j++) { |
| 257 | w_short(d & PyLong_MARSHAL_MASK, p); |
| 258 | d >>= PyLong_MARSHAL_SHIFT; |
| 259 | } |
| 260 | assert (d == 0); |
| 261 | } |
| 262 | d = ob->ob_digit[n-1]; |
| 263 | do { |
| 264 | w_short(d & PyLong_MARSHAL_MASK, p); |
| 265 | d >>= PyLong_MARSHAL_SHIFT; |
| 266 | } while (d != 0); |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 267 | } |
| 268 | |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 269 | static void |
| 270 | w_float_bin(double v, WFILE *p) |
| 271 | { |
| 272 | unsigned char buf[8]; |
| 273 | if (_PyFloat_Pack8(v, buf, 1) < 0) { |
| 274 | p->error = WFERR_UNMARSHALLABLE; |
| 275 | return; |
| 276 | } |
| 277 | w_string((const char *)buf, 8, p); |
| 278 | } |
| 279 | |
| 280 | static void |
| 281 | w_float_str(double v, WFILE *p) |
| 282 | { |
| 283 | int n; |
| 284 | char *buf = PyOS_double_to_string(v, 'g', 17, 0, NULL); |
| 285 | if (!buf) { |
| 286 | p->error = WFERR_NOMEMORY; |
| 287 | return; |
| 288 | } |
| 289 | n = (int)strlen(buf); |
| 290 | w_byte(n, p); |
| 291 | w_string(buf, n, p); |
| 292 | PyMem_Free(buf); |
| 293 | } |
| 294 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 295 | static int |
| 296 | w_ref(PyObject *v, char *flag, WFILE *p) |
| 297 | { |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 298 | _Py_hashtable_entry_t *entry; |
| 299 | int w; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 300 | |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 301 | if (p->version < 3 || p->hashtable == NULL) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 302 | return 0; /* not writing object references */ |
| 303 | |
| 304 | /* if it has only one reference, it definitely isn't shared */ |
| 305 | if (Py_REFCNT(v) == 1) |
| 306 | return 0; |
| 307 | |
Victor Stinner | 285cf0a | 2016-03-21 22:00:58 +0100 | [diff] [blame] | 308 | entry = _Py_HASHTABLE_GET_ENTRY(p->hashtable, v); |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 309 | if (entry != NULL) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 310 | /* write the reference index to the stream */ |
Victor Stinner | e8c6b2f | 2016-03-23 09:25:01 +0100 | [diff] [blame] | 311 | _Py_HASHTABLE_ENTRY_READ_DATA(p->hashtable, entry, w); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 312 | /* we don't store "long" indices in the dict */ |
| 313 | assert(0 <= w && w <= 0x7fffffff); |
| 314 | w_byte(TYPE_REF, p); |
| 315 | w_long(w, p); |
| 316 | return 1; |
| 317 | } else { |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 318 | size_t s = p->hashtable->entries; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 319 | /* we don't support long indices */ |
| 320 | if (s >= 0x7fffffff) { |
| 321 | PyErr_SetString(PyExc_ValueError, "too many objects"); |
| 322 | goto err; |
| 323 | } |
Serhiy Storchaka | 26861b0 | 2015-02-16 20:52:17 +0200 | [diff] [blame] | 324 | w = (int)s; |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 325 | Py_INCREF(v); |
| 326 | if (_Py_HASHTABLE_SET(p->hashtable, v, w) < 0) { |
| 327 | Py_DECREF(v); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 328 | goto err; |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 329 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 330 | *flag |= FLAG_REF; |
| 331 | return 0; |
| 332 | } |
| 333 | err: |
| 334 | p->error = WFERR_UNMARSHALLABLE; |
| 335 | return 1; |
| 336 | } |
| 337 | |
| 338 | static void |
| 339 | w_complex_object(PyObject *v, char flag, WFILE *p); |
| 340 | |
Guido van Rossum | b0c168c | 1996-12-05 23:15:02 +0000 | [diff] [blame] | 341 | static void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 342 | w_object(PyObject *v, WFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 343 | { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 344 | char flag = '\0'; |
Fred Drake | 6da0b91 | 2000-06-28 18:47:56 +0000 | [diff] [blame] | 345 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 346 | p->depth++; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 347 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 348 | if (p->depth > MAX_MARSHAL_STACK_DEPTH) { |
| 349 | p->error = WFERR_NESTEDTOODEEP; |
| 350 | } |
| 351 | else if (v == NULL) { |
| 352 | w_byte(TYPE_NULL, p); |
| 353 | } |
| 354 | else if (v == Py_None) { |
| 355 | w_byte(TYPE_NONE, p); |
| 356 | } |
| 357 | else if (v == PyExc_StopIteration) { |
| 358 | w_byte(TYPE_STOPITER, p); |
| 359 | } |
| 360 | else if (v == Py_Ellipsis) { |
| 361 | w_byte(TYPE_ELLIPSIS, p); |
| 362 | } |
| 363 | else if (v == Py_False) { |
| 364 | w_byte(TYPE_FALSE, p); |
| 365 | } |
| 366 | else if (v == Py_True) { |
| 367 | w_byte(TYPE_TRUE, p); |
| 368 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 369 | else if (!w_ref(v, &flag, p)) |
| 370 | w_complex_object(v, flag, p); |
| 371 | |
| 372 | p->depth--; |
| 373 | } |
| 374 | |
| 375 | static void |
| 376 | w_complex_object(PyObject *v, char flag, WFILE *p) |
| 377 | { |
| 378 | Py_ssize_t i, n; |
| 379 | |
| 380 | if (PyLong_CheckExact(v)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 381 | long x = PyLong_AsLong(v); |
| 382 | if ((x == -1) && PyErr_Occurred()) { |
| 383 | PyLongObject *ob = (PyLongObject *)v; |
| 384 | PyErr_Clear(); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 385 | w_PyLong(ob, flag, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 386 | } |
| 387 | else { |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 388 | #if SIZEOF_LONG > 4 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 389 | long y = Py_ARITHMETIC_RIGHT_SHIFT(long, x, 31); |
| 390 | if (y && y != -1) { |
Martin v. Löwis | 7e39572 | 2012-07-28 19:44:05 +0200 | [diff] [blame] | 391 | /* Too large for TYPE_INT */ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 392 | w_PyLong((PyLongObject*)v, flag, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 393 | } |
| 394 | else |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 395 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 396 | { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 397 | W_TYPE(TYPE_INT, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 398 | w_long(x, p); |
| 399 | } |
| 400 | } |
| 401 | } |
| 402 | else if (PyFloat_CheckExact(v)) { |
| 403 | if (p->version > 1) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 404 | W_TYPE(TYPE_BINARY_FLOAT, p); |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 405 | w_float_bin(PyFloat_AS_DOUBLE(v), p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 406 | } |
| 407 | else { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 408 | W_TYPE(TYPE_FLOAT, p); |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 409 | w_float_str(PyFloat_AS_DOUBLE(v), p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 410 | } |
| 411 | } |
| 412 | else if (PyComplex_CheckExact(v)) { |
| 413 | if (p->version > 1) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 414 | W_TYPE(TYPE_BINARY_COMPLEX, p); |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 415 | w_float_bin(PyComplex_RealAsDouble(v), p); |
| 416 | w_float_bin(PyComplex_ImagAsDouble(v), p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 417 | } |
| 418 | else { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 419 | W_TYPE(TYPE_COMPLEX, p); |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 420 | w_float_str(PyComplex_RealAsDouble(v), p); |
| 421 | w_float_str(PyComplex_ImagAsDouble(v), p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 422 | } |
| 423 | } |
| 424 | else if (PyBytes_CheckExact(v)) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 425 | W_TYPE(TYPE_STRING, p); |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 426 | w_pstring(PyBytes_AS_STRING(v), PyBytes_GET_SIZE(v), p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 427 | } |
| 428 | else if (PyUnicode_CheckExact(v)) { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 429 | if (p->version >= 4 && PyUnicode_IS_ASCII(v)) { |
| 430 | int is_short = PyUnicode_GET_LENGTH(v) < 256; |
| 431 | if (is_short) { |
| 432 | if (PyUnicode_CHECK_INTERNED(v)) |
| 433 | W_TYPE(TYPE_SHORT_ASCII_INTERNED, p); |
| 434 | else |
| 435 | W_TYPE(TYPE_SHORT_ASCII, p); |
| 436 | w_short_pstring((char *) PyUnicode_1BYTE_DATA(v), |
| 437 | PyUnicode_GET_LENGTH(v), p); |
| 438 | } |
| 439 | else { |
| 440 | if (PyUnicode_CHECK_INTERNED(v)) |
| 441 | W_TYPE(TYPE_ASCII_INTERNED, p); |
| 442 | else |
| 443 | W_TYPE(TYPE_ASCII, p); |
| 444 | w_pstring((char *) PyUnicode_1BYTE_DATA(v), |
| 445 | PyUnicode_GET_LENGTH(v), p); |
| 446 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 447 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 448 | else { |
| 449 | PyObject *utf8; |
| 450 | utf8 = PyUnicode_AsEncodedString(v, "utf8", "surrogatepass"); |
| 451 | if (utf8 == NULL) { |
| 452 | p->depth--; |
| 453 | p->error = WFERR_UNMARSHALLABLE; |
| 454 | return; |
| 455 | } |
| 456 | if (p->version >= 3 && PyUnicode_CHECK_INTERNED(v)) |
| 457 | W_TYPE(TYPE_INTERNED, p); |
| 458 | else |
| 459 | W_TYPE(TYPE_UNICODE, p); |
| 460 | w_pstring(PyBytes_AS_STRING(utf8), PyBytes_GET_SIZE(utf8), p); |
| 461 | Py_DECREF(utf8); |
| 462 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 463 | } |
| 464 | else if (PyTuple_CheckExact(v)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 465 | n = PyTuple_Size(v); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 466 | if (p->version >= 4 && n < 256) { |
| 467 | W_TYPE(TYPE_SMALL_TUPLE, p); |
Victor Stinner | da06255 | 2013-11-16 00:13:29 +0100 | [diff] [blame] | 468 | w_byte((unsigned char)n, p); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 469 | } |
| 470 | else { |
| 471 | W_TYPE(TYPE_TUPLE, p); |
| 472 | W_SIZE(n, p); |
| 473 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 474 | for (i = 0; i < n; i++) { |
| 475 | w_object(PyTuple_GET_ITEM(v, i), p); |
| 476 | } |
| 477 | } |
| 478 | else if (PyList_CheckExact(v)) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 479 | W_TYPE(TYPE_LIST, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 480 | n = PyList_GET_SIZE(v); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 481 | W_SIZE(n, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 482 | for (i = 0; i < n; i++) { |
| 483 | w_object(PyList_GET_ITEM(v, i), p); |
| 484 | } |
| 485 | } |
| 486 | else if (PyDict_CheckExact(v)) { |
| 487 | Py_ssize_t pos; |
| 488 | PyObject *key, *value; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 489 | W_TYPE(TYPE_DICT, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 490 | /* This one is NULL object terminated! */ |
| 491 | pos = 0; |
| 492 | while (PyDict_Next(v, &pos, &key, &value)) { |
| 493 | w_object(key, p); |
| 494 | w_object(value, p); |
| 495 | } |
| 496 | w_object((PyObject *)NULL, p); |
| 497 | } |
| 498 | else if (PyAnySet_CheckExact(v)) { |
| 499 | PyObject *value, *it; |
Raymond Hettinger | a422c34 | 2005-01-11 03:03:27 +0000 | [diff] [blame] | 500 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 501 | if (PyObject_TypeCheck(v, &PySet_Type)) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 502 | W_TYPE(TYPE_SET, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 503 | else |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 504 | W_TYPE(TYPE_FROZENSET, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 505 | n = PyObject_Size(v); |
| 506 | if (n == -1) { |
| 507 | p->depth--; |
| 508 | p->error = WFERR_UNMARSHALLABLE; |
| 509 | return; |
| 510 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 511 | W_SIZE(n, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 512 | it = PyObject_GetIter(v); |
| 513 | if (it == NULL) { |
| 514 | p->depth--; |
| 515 | p->error = WFERR_UNMARSHALLABLE; |
| 516 | return; |
| 517 | } |
| 518 | while ((value = PyIter_Next(it)) != NULL) { |
| 519 | w_object(value, p); |
| 520 | Py_DECREF(value); |
| 521 | } |
| 522 | Py_DECREF(it); |
| 523 | if (PyErr_Occurred()) { |
| 524 | p->depth--; |
| 525 | p->error = WFERR_UNMARSHALLABLE; |
| 526 | return; |
| 527 | } |
| 528 | } |
| 529 | else if (PyCode_Check(v)) { |
| 530 | PyCodeObject *co = (PyCodeObject *)v; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 531 | W_TYPE(TYPE_CODE, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 532 | w_long(co->co_argcount, p); |
| 533 | w_long(co->co_kwonlyargcount, p); |
| 534 | w_long(co->co_nlocals, p); |
| 535 | w_long(co->co_stacksize, p); |
| 536 | w_long(co->co_flags, p); |
| 537 | w_object(co->co_code, p); |
| 538 | w_object(co->co_consts, p); |
| 539 | w_object(co->co_names, p); |
| 540 | w_object(co->co_varnames, p); |
| 541 | w_object(co->co_freevars, p); |
| 542 | w_object(co->co_cellvars, p); |
| 543 | w_object(co->co_filename, p); |
| 544 | w_object(co->co_name, p); |
| 545 | w_long(co->co_firstlineno, p); |
| 546 | w_object(co->co_lnotab, p); |
| 547 | } |
| 548 | else if (PyObject_CheckBuffer(v)) { |
Serhiy Storchaka | c611a5b | 2017-03-12 08:53:22 +0200 | [diff] [blame] | 549 | /* Write unknown bytes-like objects as a bytes object */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 550 | Py_buffer view; |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 551 | if (PyObject_GetBuffer(v, &view, PyBUF_SIMPLE) != 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 552 | w_byte(TYPE_UNKNOWN, p); |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 553 | p->depth--; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 554 | p->error = WFERR_UNMARSHALLABLE; |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 555 | return; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 556 | } |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 557 | W_TYPE(TYPE_STRING, p); |
Serhiy Storchaka | dfde215 | 2013-07-11 19:14:26 +0300 | [diff] [blame] | 558 | w_pstring(view.buf, view.len, p); |
Antoine Pitrou | 679e9d3 | 2012-03-02 18:12:43 +0100 | [diff] [blame] | 559 | PyBuffer_Release(&view); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 560 | } |
| 561 | else { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 562 | W_TYPE(TYPE_UNKNOWN, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 563 | p->error = WFERR_UNMARSHALLABLE; |
| 564 | } |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 565 | } |
| 566 | |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 567 | static int |
| 568 | w_init_refs(WFILE *wf, int version) |
| 569 | { |
| 570 | if (version >= 3) { |
Victor Stinner | 285cf0a | 2016-03-21 22:00:58 +0100 | [diff] [blame] | 571 | wf->hashtable = _Py_hashtable_new(sizeof(PyObject *), sizeof(int), |
| 572 | _Py_hashtable_hash_ptr, |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 573 | _Py_hashtable_compare_direct); |
| 574 | if (wf->hashtable == NULL) { |
| 575 | PyErr_NoMemory(); |
| 576 | return -1; |
| 577 | } |
| 578 | } |
| 579 | return 0; |
| 580 | } |
| 581 | |
| 582 | static int |
Victor Stinner | 285cf0a | 2016-03-21 22:00:58 +0100 | [diff] [blame] | 583 | w_decref_entry(_Py_hashtable_t *ht, _Py_hashtable_entry_t *entry, |
| 584 | void *Py_UNUSED(data)) |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 585 | { |
Victor Stinner | 285cf0a | 2016-03-21 22:00:58 +0100 | [diff] [blame] | 586 | PyObject *entry_key; |
| 587 | |
Victor Stinner | 5dacbd4 | 2016-03-23 09:52:13 +0100 | [diff] [blame] | 588 | _Py_HASHTABLE_ENTRY_READ_KEY(ht, entry, entry_key); |
Victor Stinner | 285cf0a | 2016-03-21 22:00:58 +0100 | [diff] [blame] | 589 | Py_XDECREF(entry_key); |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 590 | return 0; |
| 591 | } |
| 592 | |
| 593 | static void |
| 594 | w_clear_refs(WFILE *wf) |
| 595 | { |
| 596 | if (wf->hashtable != NULL) { |
| 597 | _Py_hashtable_foreach(wf->hashtable, w_decref_entry, NULL); |
| 598 | _Py_hashtable_destroy(wf->hashtable); |
| 599 | } |
| 600 | } |
| 601 | |
Serhiy Storchaka | 9594942 | 2013-08-27 19:40:23 +0300 | [diff] [blame] | 602 | /* version currently has no effect for writing ints. */ |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 603 | void |
Martin v. Löwis | ef82d2f | 2004-06-27 16:51:46 +0000 | [diff] [blame] | 604 | PyMarshal_WriteLongToFile(long x, FILE *fp, int version) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 605 | { |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 606 | char buf[4]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 607 | WFILE wf; |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 608 | memset(&wf, 0, sizeof(wf)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 609 | wf.fp = fp; |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 610 | wf.ptr = wf.buf = buf; |
| 611 | wf.end = wf.ptr + sizeof(buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 612 | wf.error = WFERR_OK; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 613 | wf.version = version; |
| 614 | w_long(x, &wf); |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 615 | w_flush(&wf); |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 616 | } |
| 617 | |
| 618 | void |
Martin v. Löwis | ef82d2f | 2004-06-27 16:51:46 +0000 | [diff] [blame] | 619 | PyMarshal_WriteObjectToFile(PyObject *x, FILE *fp, int version) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 620 | { |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 621 | char buf[BUFSIZ]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 622 | WFILE wf; |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 623 | memset(&wf, 0, sizeof(wf)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 624 | wf.fp = fp; |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 625 | wf.ptr = wf.buf = buf; |
| 626 | wf.end = wf.ptr + sizeof(buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 627 | wf.error = WFERR_OK; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 628 | wf.version = version; |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 629 | if (w_init_refs(&wf, version)) |
| 630 | return; /* caller mush check PyErr_Occurred() */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 631 | w_object(x, &wf); |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 632 | w_clear_refs(&wf); |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 633 | w_flush(&wf); |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 634 | } |
| 635 | |
Serhiy Storchaka | c07422c | 2015-02-11 16:18:09 +0200 | [diff] [blame] | 636 | typedef struct { |
| 637 | FILE *fp; |
| 638 | int depth; |
| 639 | PyObject *readable; /* Stream-like object being read from */ |
Serhiy Storchaka | c07422c | 2015-02-11 16:18:09 +0200 | [diff] [blame] | 640 | char *ptr; |
| 641 | char *end; |
| 642 | char *buf; |
| 643 | Py_ssize_t buf_size; |
| 644 | PyObject *refs; /* a list */ |
| 645 | } RFILE; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 646 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 647 | static const char * |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 648 | r_string(Py_ssize_t n, RFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 649 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 650 | Py_ssize_t read = -1; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 651 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 652 | if (p->ptr != NULL) { |
| 653 | /* Fast path for loads() */ |
| 654 | char *res = p->ptr; |
| 655 | Py_ssize_t left = p->end - p->ptr; |
| 656 | if (left < n) { |
| 657 | PyErr_SetString(PyExc_EOFError, |
| 658 | "marshal data too short"); |
| 659 | return NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 660 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 661 | p->ptr += n; |
| 662 | return res; |
| 663 | } |
| 664 | if (p->buf == NULL) { |
| 665 | p->buf = PyMem_MALLOC(n); |
| 666 | if (p->buf == NULL) { |
| 667 | PyErr_NoMemory(); |
| 668 | return NULL; |
| 669 | } |
| 670 | p->buf_size = n; |
| 671 | } |
| 672 | else if (p->buf_size < n) { |
Zackery Spytz | 4c49da0 | 2018-12-07 03:11:30 -0700 | [diff] [blame] | 673 | char *tmp = PyMem_REALLOC(p->buf, n); |
| 674 | if (tmp == NULL) { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 675 | PyErr_NoMemory(); |
| 676 | return NULL; |
| 677 | } |
Zackery Spytz | 4c49da0 | 2018-12-07 03:11:30 -0700 | [diff] [blame] | 678 | p->buf = tmp; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 679 | p->buf_size = n; |
| 680 | } |
Victor Stinner | 763b0d1 | 2013-10-31 16:56:38 +0100 | [diff] [blame] | 681 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 682 | if (!p->readable) { |
| 683 | assert(p->fp != NULL); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 684 | read = fread(p->buf, 1, n, p->fp); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 685 | } |
| 686 | else { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 687 | _Py_IDENTIFIER(readinto); |
| 688 | PyObject *res, *mview; |
| 689 | Py_buffer buf; |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 690 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 691 | if (PyBuffer_FillInfo(&buf, NULL, p->buf, n, 0, PyBUF_CONTIG) == -1) |
| 692 | return NULL; |
| 693 | mview = PyMemoryView_FromBuffer(&buf); |
| 694 | if (mview == NULL) |
| 695 | return NULL; |
| 696 | |
| 697 | res = _PyObject_CallMethodId(p->readable, &PyId_readinto, "N", mview); |
| 698 | if (res != NULL) { |
| 699 | read = PyNumber_AsSsize_t(res, PyExc_ValueError); |
| 700 | Py_DECREF(res); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 701 | } |
| 702 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 703 | if (read != n) { |
| 704 | if (!PyErr_Occurred()) { |
| 705 | if (read > n) |
| 706 | PyErr_Format(PyExc_ValueError, |
| 707 | "read() returned too much data: " |
| 708 | "%zd bytes requested, %zd returned", |
| 709 | n, read); |
| 710 | else |
| 711 | PyErr_SetString(PyExc_EOFError, |
| 712 | "EOF read where not expected"); |
| 713 | } |
| 714 | return NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 715 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 716 | return p->buf; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 717 | } |
| 718 | |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 719 | static int |
| 720 | r_byte(RFILE *p) |
| 721 | { |
| 722 | int c = EOF; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 723 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 724 | if (p->ptr != NULL) { |
| 725 | if (p->ptr < p->end) |
| 726 | c = (unsigned char) *p->ptr++; |
| 727 | return c; |
| 728 | } |
| 729 | if (!p->readable) { |
| 730 | assert(p->fp); |
| 731 | c = getc(p->fp); |
| 732 | } |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 733 | else { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 734 | const char *ptr = r_string(1, p); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 735 | if (ptr != NULL) |
| 736 | c = *(unsigned char *) ptr; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 737 | } |
| 738 | return c; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 739 | } |
| 740 | |
| 741 | static int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 742 | r_short(RFILE *p) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 743 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 744 | short x = -1; |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 745 | const unsigned char *buffer; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 746 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 747 | buffer = (const unsigned char *) r_string(2, p); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 748 | if (buffer != NULL) { |
| 749 | x = buffer[0]; |
| 750 | x |= buffer[1] << 8; |
| 751 | /* Sign-extension, in case short greater than 16 bits */ |
| 752 | x |= -(x & 0x8000); |
| 753 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 754 | return x; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 755 | } |
| 756 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 757 | static long |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 758 | r_long(RFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 759 | { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 760 | long x = -1; |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 761 | const unsigned char *buffer; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 762 | |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 763 | buffer = (const unsigned char *) r_string(4, p); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 764 | if (buffer != NULL) { |
| 765 | x = buffer[0]; |
| 766 | x |= (long)buffer[1] << 8; |
| 767 | x |= (long)buffer[2] << 16; |
| 768 | x |= (long)buffer[3] << 24; |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 769 | #if SIZEOF_LONG > 4 |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 770 | /* Sign extension for 64-bit machines */ |
| 771 | x |= -(x & 0x80000000L); |
Guido van Rossum | c1547d9 | 1996-12-10 15:39:04 +0000 | [diff] [blame] | 772 | #endif |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 773 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 774 | return x; |
Guido van Rossum | b0c168c | 1996-12-05 23:15:02 +0000 | [diff] [blame] | 775 | } |
| 776 | |
Serhiy Storchaka | 00987f6 | 2017-11-15 17:41:05 +0200 | [diff] [blame] | 777 | /* r_long64 deals with the TYPE_INT64 code. */ |
| 778 | static PyObject * |
| 779 | r_long64(RFILE *p) |
| 780 | { |
| 781 | const unsigned char *buffer = (const unsigned char *) r_string(8, p); |
| 782 | if (buffer == NULL) { |
| 783 | return NULL; |
| 784 | } |
| 785 | return _PyLong_FromByteArray(buffer, 8, |
| 786 | 1 /* little endian */, |
| 787 | 1 /* signed */); |
| 788 | } |
| 789 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 790 | static PyObject * |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 791 | r_PyLong(RFILE *p) |
| 792 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 793 | PyLongObject *ob; |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 794 | long n, size, i; |
| 795 | int j, md, shorts_in_top_digit; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 796 | digit d; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 797 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 798 | n = r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 799 | if (PyErr_Occurred()) |
| 800 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 801 | if (n == 0) |
| 802 | return (PyObject *)_PyLong_New(0); |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 803 | if (n < -SIZE32_MAX || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 804 | PyErr_SetString(PyExc_ValueError, |
| 805 | "bad marshal data (long size out of range)"); |
| 806 | return NULL; |
| 807 | } |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 808 | |
Victor Stinner | 45e8e2f | 2014-05-14 17:24:35 +0200 | [diff] [blame] | 809 | size = 1 + (Py_ABS(n) - 1) / PyLong_MARSHAL_RATIO; |
| 810 | shorts_in_top_digit = 1 + (Py_ABS(n) - 1) % PyLong_MARSHAL_RATIO; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 811 | ob = _PyLong_New(size); |
| 812 | if (ob == NULL) |
| 813 | return NULL; |
Victor Stinner | 763b0d1 | 2013-10-31 16:56:38 +0100 | [diff] [blame] | 814 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 815 | Py_SIZE(ob) = n > 0 ? size : -size; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 816 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 817 | for (i = 0; i < size-1; i++) { |
| 818 | d = 0; |
| 819 | for (j=0; j < PyLong_MARSHAL_RATIO; j++) { |
| 820 | md = r_short(p); |
Victor Stinner | 763b0d1 | 2013-10-31 16:56:38 +0100 | [diff] [blame] | 821 | if (PyErr_Occurred()) { |
| 822 | Py_DECREF(ob); |
| 823 | return NULL; |
| 824 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 825 | if (md < 0 || md > PyLong_MARSHAL_BASE) |
| 826 | goto bad_digit; |
| 827 | d += (digit)md << j*PyLong_MARSHAL_SHIFT; |
| 828 | } |
| 829 | ob->ob_digit[i] = d; |
| 830 | } |
Victor Stinner | 763b0d1 | 2013-10-31 16:56:38 +0100 | [diff] [blame] | 831 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 832 | d = 0; |
| 833 | for (j=0; j < shorts_in_top_digit; j++) { |
| 834 | md = r_short(p); |
Victor Stinner | 763b0d1 | 2013-10-31 16:56:38 +0100 | [diff] [blame] | 835 | if (PyErr_Occurred()) { |
| 836 | Py_DECREF(ob); |
| 837 | return NULL; |
| 838 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 839 | if (md < 0 || md > PyLong_MARSHAL_BASE) |
| 840 | goto bad_digit; |
| 841 | /* topmost marshal digit should be nonzero */ |
| 842 | if (md == 0 && j == shorts_in_top_digit - 1) { |
| 843 | Py_DECREF(ob); |
| 844 | PyErr_SetString(PyExc_ValueError, |
| 845 | "bad marshal data (unnormalized long data)"); |
| 846 | return NULL; |
| 847 | } |
| 848 | d += (digit)md << j*PyLong_MARSHAL_SHIFT; |
| 849 | } |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 850 | if (PyErr_Occurred()) { |
| 851 | Py_DECREF(ob); |
| 852 | return NULL; |
| 853 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 854 | /* top digit should be nonzero, else the resulting PyLong won't be |
| 855 | normalized */ |
| 856 | ob->ob_digit[size-1] = d; |
| 857 | return (PyObject *)ob; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 858 | bad_digit: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 859 | Py_DECREF(ob); |
| 860 | PyErr_SetString(PyExc_ValueError, |
| 861 | "bad marshal data (digit out of range in long)"); |
| 862 | return NULL; |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 863 | } |
| 864 | |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 865 | static double |
| 866 | r_float_bin(RFILE *p) |
| 867 | { |
| 868 | const unsigned char *buf = (const unsigned char *) r_string(8, p); |
| 869 | if (buf == NULL) |
| 870 | return -1; |
| 871 | return _PyFloat_Unpack8(buf, 1); |
| 872 | } |
| 873 | |
| 874 | /* Issue #33720: Disable inlining for reducing the C stack consumption |
| 875 | on PGO builds. */ |
| 876 | _Py_NO_INLINE static double |
| 877 | r_float_str(RFILE *p) |
| 878 | { |
| 879 | int n; |
| 880 | char buf[256]; |
| 881 | const char *ptr; |
| 882 | n = r_byte(p); |
| 883 | if (n == EOF) { |
| 884 | PyErr_SetString(PyExc_EOFError, |
| 885 | "EOF read where object expected"); |
| 886 | return -1; |
| 887 | } |
| 888 | ptr = r_string(n, p); |
| 889 | if (ptr == NULL) { |
| 890 | return -1; |
| 891 | } |
| 892 | memcpy(buf, ptr, n); |
| 893 | buf[n] = '\0'; |
| 894 | return PyOS_string_to_double(buf, NULL, NULL); |
| 895 | } |
| 896 | |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 897 | /* allocate the reflist index for a new object. Return -1 on failure */ |
| 898 | static Py_ssize_t |
| 899 | r_ref_reserve(int flag, RFILE *p) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 900 | { |
| 901 | if (flag) { /* currently only FLAG_REF is defined */ |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 902 | Py_ssize_t idx = PyList_GET_SIZE(p->refs); |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 903 | if (idx >= 0x7ffffffe) { |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 904 | PyErr_SetString(PyExc_ValueError, "bad marshal data (index list too large)"); |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 905 | return -1; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 906 | } |
| 907 | if (PyList_Append(p->refs, Py_None) < 0) |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 908 | return -1; |
| 909 | return idx; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 910 | } else |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 911 | return 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 912 | } |
| 913 | |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 914 | /* insert the new object 'o' to the reflist at previously |
| 915 | * allocated index 'idx'. |
| 916 | * 'o' can be NULL, in which case nothing is done. |
| 917 | * if 'o' was non-NULL, and the function succeeds, 'o' is returned. |
| 918 | * if 'o' was non-NULL, and the function fails, 'o' is released and |
| 919 | * NULL returned. This simplifies error checking at the call site since |
| 920 | * a single test for NULL for the function result is enough. |
| 921 | */ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 922 | static PyObject * |
| 923 | r_ref_insert(PyObject *o, Py_ssize_t idx, int flag, RFILE *p) |
| 924 | { |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 925 | if (o != NULL && flag) { /* currently only FLAG_REF is defined */ |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 926 | PyObject *tmp = PyList_GET_ITEM(p->refs, idx); |
| 927 | Py_INCREF(o); |
| 928 | PyList_SET_ITEM(p->refs, idx, o); |
| 929 | Py_DECREF(tmp); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 930 | } |
| 931 | return o; |
| 932 | } |
| 933 | |
| 934 | /* combination of both above, used when an object can be |
| 935 | * created whenever it is seen in the file, as opposed to |
| 936 | * after having loaded its sub-objects. |
| 937 | */ |
| 938 | static PyObject * |
| 939 | r_ref(PyObject *o, int flag, RFILE *p) |
| 940 | { |
Victor Stinner | 359fabc | 2013-10-31 17:09:01 +0100 | [diff] [blame] | 941 | assert(flag & FLAG_REF); |
| 942 | if (o == NULL) |
| 943 | return NULL; |
| 944 | if (PyList_Append(p->refs, o) < 0) { |
| 945 | Py_DECREF(o); /* release the new object */ |
| 946 | return NULL; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 947 | } |
| 948 | return o; |
| 949 | } |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 950 | |
| 951 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 952 | r_object(RFILE *p) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 953 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 954 | /* NULL is a valid return value, it does not necessarily means that |
| 955 | an exception is set. */ |
| 956 | PyObject *v, *v2; |
Benjamin Peterson | eddb0a7 | 2013-03-20 00:40:07 -0500 | [diff] [blame] | 957 | Py_ssize_t idx = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 958 | long i, n; |
Kristján Valur Jónsson | 6168362 | 2013-03-20 14:26:33 -0700 | [diff] [blame] | 959 | int type, code = r_byte(p); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 960 | int flag, is_interned = 0; |
Christian Heimes | 3572842 | 2013-10-13 02:29:06 +0200 | [diff] [blame] | 961 | PyObject *retval = NULL; |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 962 | |
Kristján Valur Jónsson | 6168362 | 2013-03-20 14:26:33 -0700 | [diff] [blame] | 963 | if (code == EOF) { |
| 964 | PyErr_SetString(PyExc_EOFError, |
| 965 | "EOF read where object expected"); |
| 966 | return NULL; |
| 967 | } |
| 968 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 969 | p->depth++; |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 970 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 971 | if (p->depth > MAX_MARSHAL_STACK_DEPTH) { |
| 972 | p->depth--; |
| 973 | PyErr_SetString(PyExc_ValueError, "recursion limit exceeded"); |
| 974 | return NULL; |
| 975 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 976 | |
Kristján Valur Jónsson | 6168362 | 2013-03-20 14:26:33 -0700 | [diff] [blame] | 977 | flag = code & FLAG_REF; |
| 978 | type = code & ~FLAG_REF; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 979 | |
| 980 | #define R_REF(O) do{\ |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 981 | if (flag) \ |
| 982 | O = r_ref(O, flag, p);\ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 983 | } while (0) |
| 984 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 985 | switch (type) { |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 986 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 987 | case TYPE_NULL: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 988 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 989 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 990 | case TYPE_NONE: |
| 991 | Py_INCREF(Py_None); |
| 992 | retval = Py_None; |
| 993 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 994 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 995 | case TYPE_STOPITER: |
| 996 | Py_INCREF(PyExc_StopIteration); |
| 997 | retval = PyExc_StopIteration; |
| 998 | break; |
Tim Peters | 5ca576e | 2001-06-18 22:08:13 +0000 | [diff] [blame] | 999 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1000 | case TYPE_ELLIPSIS: |
| 1001 | Py_INCREF(Py_Ellipsis); |
| 1002 | retval = Py_Ellipsis; |
| 1003 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1004 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1005 | case TYPE_FALSE: |
| 1006 | Py_INCREF(Py_False); |
| 1007 | retval = Py_False; |
| 1008 | break; |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 1009 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1010 | case TYPE_TRUE: |
| 1011 | Py_INCREF(Py_True); |
| 1012 | retval = Py_True; |
| 1013 | break; |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 1014 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1015 | case TYPE_INT: |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1016 | n = r_long(p); |
| 1017 | retval = PyErr_Occurred() ? NULL : PyLong_FromLong(n); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1018 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1019 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1020 | |
Serhiy Storchaka | 00987f6 | 2017-11-15 17:41:05 +0200 | [diff] [blame] | 1021 | case TYPE_INT64: |
| 1022 | retval = r_long64(p); |
| 1023 | R_REF(retval); |
| 1024 | break; |
| 1025 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1026 | case TYPE_LONG: |
| 1027 | retval = r_PyLong(p); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1028 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1029 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1030 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1031 | case TYPE_FLOAT: |
| 1032 | { |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 1033 | double x = r_float_str(p); |
| 1034 | if (x == -1.0 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1035 | break; |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 1036 | retval = PyFloat_FromDouble(x); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1037 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1038 | break; |
| 1039 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1040 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1041 | case TYPE_BINARY_FLOAT: |
| 1042 | { |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 1043 | double x = r_float_bin(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1044 | if (x == -1.0 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1045 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1046 | retval = PyFloat_FromDouble(x); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1047 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1048 | break; |
| 1049 | } |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 1050 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1051 | case TYPE_COMPLEX: |
| 1052 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1053 | Py_complex c; |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 1054 | c.real = r_float_str(p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1055 | if (c.real == -1.0 && PyErr_Occurred()) |
| 1056 | break; |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 1057 | c.imag = r_float_str(p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1058 | if (c.imag == -1.0 && PyErr_Occurred()) |
| 1059 | break; |
| 1060 | retval = PyComplex_FromCComplex(c); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1061 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1062 | break; |
| 1063 | } |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 1064 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1065 | case TYPE_BINARY_COMPLEX: |
| 1066 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1067 | Py_complex c; |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 1068 | c.real = r_float_bin(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1069 | if (c.real == -1.0 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1070 | break; |
Serhiy Storchaka | c573499 | 2018-07-24 10:55:47 +0300 | [diff] [blame] | 1071 | c.imag = r_float_bin(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1072 | if (c.imag == -1.0 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1073 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1074 | retval = PyComplex_FromCComplex(c); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1075 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1076 | break; |
| 1077 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1078 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1079 | case TYPE_STRING: |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1080 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1081 | const char *ptr; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1082 | n = r_long(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1083 | if (PyErr_Occurred()) |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1084 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1085 | if (n < 0 || n > SIZE32_MAX) { |
Serhiy Storchaka | c611a5b | 2017-03-12 08:53:22 +0200 | [diff] [blame] | 1086 | PyErr_SetString(PyExc_ValueError, "bad marshal data (bytes object size out of range)"); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1087 | break; |
| 1088 | } |
| 1089 | v = PyBytes_FromStringAndSize((char *)NULL, n); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1090 | if (v == NULL) |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1091 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1092 | ptr = r_string(n, p); |
| 1093 | if (ptr == NULL) { |
| 1094 | Py_DECREF(v); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1095 | break; |
| 1096 | } |
| 1097 | memcpy(PyBytes_AS_STRING(v), ptr, n); |
| 1098 | retval = v; |
| 1099 | R_REF(retval); |
| 1100 | break; |
| 1101 | } |
| 1102 | |
| 1103 | case TYPE_ASCII_INTERNED: |
| 1104 | is_interned = 1; |
Stefan Krah | f432a32 | 2017-08-21 13:09:59 +0200 | [diff] [blame] | 1105 | /* fall through */ |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1106 | case TYPE_ASCII: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1107 | n = r_long(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1108 | if (PyErr_Occurred()) |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1109 | break; |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1110 | if (n < 0 || n > SIZE32_MAX) { |
Serhiy Storchaka | c611a5b | 2017-03-12 08:53:22 +0200 | [diff] [blame] | 1111 | PyErr_SetString(PyExc_ValueError, "bad marshal data (string size out of range)"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1112 | break; |
| 1113 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1114 | goto _read_ascii; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1115 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1116 | case TYPE_SHORT_ASCII_INTERNED: |
| 1117 | is_interned = 1; |
Stefan Krah | f432a32 | 2017-08-21 13:09:59 +0200 | [diff] [blame] | 1118 | /* fall through */ |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1119 | case TYPE_SHORT_ASCII: |
| 1120 | n = r_byte(p); |
| 1121 | if (n == EOF) { |
| 1122 | PyErr_SetString(PyExc_EOFError, |
| 1123 | "EOF read where object expected"); |
| 1124 | break; |
| 1125 | } |
| 1126 | _read_ascii: |
| 1127 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1128 | const char *ptr; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1129 | ptr = r_string(n, p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1130 | if (ptr == NULL) |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1131 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1132 | v = PyUnicode_FromKindAndData(PyUnicode_1BYTE_KIND, ptr, n); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1133 | if (v == NULL) |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1134 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1135 | if (is_interned) |
| 1136 | PyUnicode_InternInPlace(&v); |
| 1137 | retval = v; |
| 1138 | R_REF(retval); |
| 1139 | break; |
| 1140 | } |
| 1141 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1142 | case TYPE_INTERNED: |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1143 | is_interned = 1; |
Stefan Krah | f432a32 | 2017-08-21 13:09:59 +0200 | [diff] [blame] | 1144 | /* fall through */ |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1145 | case TYPE_UNICODE: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1146 | { |
Serhiy Storchaka | ef1585e | 2015-12-25 20:01:53 +0200 | [diff] [blame] | 1147 | const char *buffer; |
Guido van Rossum | c279b53 | 2000-03-10 23:03:02 +0000 | [diff] [blame] | 1148 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1149 | n = r_long(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1150 | if (PyErr_Occurred()) |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1151 | break; |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1152 | if (n < 0 || n > SIZE32_MAX) { |
Serhiy Storchaka | c611a5b | 2017-03-12 08:53:22 +0200 | [diff] [blame] | 1153 | PyErr_SetString(PyExc_ValueError, "bad marshal data (string size out of range)"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1154 | break; |
| 1155 | } |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1156 | if (n != 0) { |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1157 | buffer = r_string(n, p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1158 | if (buffer == NULL) |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1159 | break; |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1160 | v = PyUnicode_DecodeUTF8(buffer, n, "surrogatepass"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1161 | } |
Victor Stinner | f1913ca | 2013-06-21 19:08:06 +0200 | [diff] [blame] | 1162 | else { |
| 1163 | v = PyUnicode_New(0, 0); |
| 1164 | } |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1165 | if (v == NULL) |
Victor Stinner | 3a8b79d | 2013-07-08 22:23:32 +0200 | [diff] [blame] | 1166 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1167 | if (is_interned) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1168 | PyUnicode_InternInPlace(&v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1169 | retval = v; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1170 | R_REF(retval); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1171 | break; |
| 1172 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1173 | |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1174 | case TYPE_SMALL_TUPLE: |
| 1175 | n = (unsigned char) r_byte(p); |
Victor Stinner | b1b7b18 | 2013-10-31 17:07:08 +0100 | [diff] [blame] | 1176 | if (PyErr_Occurred()) |
| 1177 | break; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1178 | goto _read_tuple; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1179 | case TYPE_TUPLE: |
| 1180 | n = r_long(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1181 | if (PyErr_Occurred()) |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1182 | break; |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1183 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1184 | PyErr_SetString(PyExc_ValueError, "bad marshal data (tuple size out of range)"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1185 | break; |
| 1186 | } |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1187 | _read_tuple: |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1188 | v = PyTuple_New(n); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1189 | R_REF(v); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1190 | if (v == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1191 | break; |
Victor Stinner | d5cae6f | 2013-10-31 17:14:52 +0100 | [diff] [blame] | 1192 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1193 | for (i = 0; i < n; i++) { |
| 1194 | v2 = r_object(p); |
| 1195 | if ( v2 == NULL ) { |
| 1196 | if (!PyErr_Occurred()) |
| 1197 | PyErr_SetString(PyExc_TypeError, |
| 1198 | "NULL object in marshal data for tuple"); |
| 1199 | Py_DECREF(v); |
| 1200 | v = NULL; |
| 1201 | break; |
| 1202 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1203 | PyTuple_SET_ITEM(v, i, v2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1204 | } |
| 1205 | retval = v; |
| 1206 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1207 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1208 | case TYPE_LIST: |
| 1209 | n = r_long(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1210 | if (PyErr_Occurred()) |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1211 | break; |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1212 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1213 | PyErr_SetString(PyExc_ValueError, "bad marshal data (list size out of range)"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1214 | break; |
| 1215 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1216 | v = PyList_New(n); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1217 | R_REF(v); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1218 | if (v == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1219 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1220 | for (i = 0; i < n; i++) { |
| 1221 | v2 = r_object(p); |
| 1222 | if ( v2 == NULL ) { |
| 1223 | if (!PyErr_Occurred()) |
| 1224 | PyErr_SetString(PyExc_TypeError, |
| 1225 | "NULL object in marshal data for list"); |
| 1226 | Py_DECREF(v); |
| 1227 | v = NULL; |
| 1228 | break; |
| 1229 | } |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1230 | PyList_SET_ITEM(v, i, v2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1231 | } |
| 1232 | retval = v; |
| 1233 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1234 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1235 | case TYPE_DICT: |
| 1236 | v = PyDict_New(); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1237 | R_REF(v); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1238 | if (v == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1239 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1240 | for (;;) { |
| 1241 | PyObject *key, *val; |
| 1242 | key = r_object(p); |
| 1243 | if (key == NULL) |
| 1244 | break; |
| 1245 | val = r_object(p); |
Victor Stinner | d5cae6f | 2013-10-31 17:14:52 +0100 | [diff] [blame] | 1246 | if (val == NULL) { |
| 1247 | Py_DECREF(key); |
| 1248 | break; |
| 1249 | } |
| 1250 | if (PyDict_SetItem(v, key, val) < 0) { |
| 1251 | Py_DECREF(key); |
| 1252 | Py_DECREF(val); |
| 1253 | break; |
| 1254 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1255 | Py_DECREF(key); |
Victor Stinner | d5cae6f | 2013-10-31 17:14:52 +0100 | [diff] [blame] | 1256 | Py_DECREF(val); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1257 | } |
| 1258 | if (PyErr_Occurred()) { |
| 1259 | Py_DECREF(v); |
| 1260 | v = NULL; |
| 1261 | } |
| 1262 | retval = v; |
| 1263 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1264 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1265 | case TYPE_SET: |
| 1266 | case TYPE_FROZENSET: |
| 1267 | n = r_long(p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1268 | if (PyErr_Occurred()) |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1269 | break; |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1270 | if (n < 0 || n > SIZE32_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1271 | PyErr_SetString(PyExc_ValueError, "bad marshal data (set size out of range)"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1272 | break; |
| 1273 | } |
Victor Stinner | d5cae6f | 2013-10-31 17:14:52 +0100 | [diff] [blame] | 1274 | |
Victor Stinner | 1aa7893 | 2016-01-23 14:15:48 +0100 | [diff] [blame] | 1275 | if (n == 0 && type == TYPE_FROZENSET) { |
| 1276 | /* call frozenset() to get the empty frozenset singleton */ |
Victor Stinner | 4778eab | 2016-12-01 14:51:04 +0100 | [diff] [blame] | 1277 | v = _PyObject_CallNoArg((PyObject*)&PyFrozenSet_Type); |
Victor Stinner | 1aa7893 | 2016-01-23 14:15:48 +0100 | [diff] [blame] | 1278 | if (v == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1279 | break; |
Victor Stinner | 1aa7893 | 2016-01-23 14:15:48 +0100 | [diff] [blame] | 1280 | R_REF(v); |
| 1281 | retval = v; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1282 | } |
Victor Stinner | 1aa7893 | 2016-01-23 14:15:48 +0100 | [diff] [blame] | 1283 | else { |
| 1284 | v = (type == TYPE_SET) ? PySet_New(NULL) : PyFrozenSet_New(NULL); |
| 1285 | if (type == TYPE_SET) { |
| 1286 | R_REF(v); |
| 1287 | } else { |
| 1288 | /* must use delayed registration of frozensets because they must |
| 1289 | * be init with a refcount of 1 |
| 1290 | */ |
| 1291 | idx = r_ref_reserve(flag, p); |
| 1292 | if (idx < 0) |
| 1293 | Py_CLEAR(v); /* signal error */ |
| 1294 | } |
| 1295 | if (v == NULL) |
| 1296 | break; |
| 1297 | |
| 1298 | for (i = 0; i < n; i++) { |
| 1299 | v2 = r_object(p); |
| 1300 | if ( v2 == NULL ) { |
| 1301 | if (!PyErr_Occurred()) |
| 1302 | PyErr_SetString(PyExc_TypeError, |
| 1303 | "NULL object in marshal data for set"); |
| 1304 | Py_DECREF(v); |
| 1305 | v = NULL; |
| 1306 | break; |
| 1307 | } |
| 1308 | if (PySet_Add(v, v2) == -1) { |
| 1309 | Py_DECREF(v); |
| 1310 | Py_DECREF(v2); |
| 1311 | v = NULL; |
| 1312 | break; |
| 1313 | } |
| 1314 | Py_DECREF(v2); |
| 1315 | } |
| 1316 | if (type != TYPE_SET) |
| 1317 | v = r_ref_insert(v, idx, flag, p); |
| 1318 | retval = v; |
| 1319 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1320 | break; |
Raymond Hettinger | a422c34 | 2005-01-11 03:03:27 +0000 | [diff] [blame] | 1321 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1322 | case TYPE_CODE: |
| 1323 | { |
| 1324 | int argcount; |
| 1325 | int kwonlyargcount; |
| 1326 | int nlocals; |
| 1327 | int stacksize; |
| 1328 | int flags; |
| 1329 | PyObject *code = NULL; |
| 1330 | PyObject *consts = NULL; |
| 1331 | PyObject *names = NULL; |
| 1332 | PyObject *varnames = NULL; |
| 1333 | PyObject *freevars = NULL; |
| 1334 | PyObject *cellvars = NULL; |
| 1335 | PyObject *filename = NULL; |
| 1336 | PyObject *name = NULL; |
| 1337 | int firstlineno; |
| 1338 | PyObject *lnotab = NULL; |
Antoine Pitrou | e9bbe8b | 2013-04-13 22:41:09 +0200 | [diff] [blame] | 1339 | |
Kristján Valur Jónsson | e178187 | 2013-03-20 11:43:57 -0700 | [diff] [blame] | 1340 | idx = r_ref_reserve(flag, p); |
Kristján Valur Jónsson | 5983258 | 2013-10-13 13:41:59 +0000 | [diff] [blame] | 1341 | if (idx < 0) |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1342 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1343 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1344 | v = NULL; |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 1345 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1346 | /* XXX ignore long->int overflows for now */ |
| 1347 | argcount = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1348 | if (PyErr_Occurred()) |
| 1349 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1350 | kwonlyargcount = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1351 | if (PyErr_Occurred()) |
| 1352 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1353 | nlocals = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1354 | if (PyErr_Occurred()) |
| 1355 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1356 | stacksize = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1357 | if (PyErr_Occurred()) |
| 1358 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1359 | flags = (int)r_long(p); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1360 | if (PyErr_Occurred()) |
| 1361 | goto code_error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1362 | code = r_object(p); |
| 1363 | if (code == NULL) |
| 1364 | goto code_error; |
| 1365 | consts = r_object(p); |
| 1366 | if (consts == NULL) |
| 1367 | goto code_error; |
| 1368 | names = r_object(p); |
| 1369 | if (names == NULL) |
| 1370 | goto code_error; |
| 1371 | varnames = r_object(p); |
| 1372 | if (varnames == NULL) |
| 1373 | goto code_error; |
| 1374 | freevars = r_object(p); |
| 1375 | if (freevars == NULL) |
| 1376 | goto code_error; |
| 1377 | cellvars = r_object(p); |
| 1378 | if (cellvars == NULL) |
| 1379 | goto code_error; |
| 1380 | filename = r_object(p); |
| 1381 | if (filename == NULL) |
| 1382 | goto code_error; |
| 1383 | name = r_object(p); |
| 1384 | if (name == NULL) |
| 1385 | goto code_error; |
| 1386 | firstlineno = (int)r_long(p); |
Kristján Valur Jónsson | 0a7697b | 2013-10-13 15:19:56 +0000 | [diff] [blame] | 1387 | if (firstlineno == -1 && PyErr_Occurred()) |
| 1388 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1389 | lnotab = r_object(p); |
| 1390 | if (lnotab == NULL) |
| 1391 | goto code_error; |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 1392 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1393 | v = (PyObject *) PyCode_New( |
| 1394 | argcount, kwonlyargcount, |
| 1395 | nlocals, stacksize, flags, |
| 1396 | code, consts, names, varnames, |
| 1397 | freevars, cellvars, filename, name, |
| 1398 | firstlineno, lnotab); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1399 | v = r_ref_insert(v, idx, flag, p); |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1400 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1401 | code_error: |
| 1402 | Py_XDECREF(code); |
| 1403 | Py_XDECREF(consts); |
| 1404 | Py_XDECREF(names); |
| 1405 | Py_XDECREF(varnames); |
| 1406 | Py_XDECREF(freevars); |
| 1407 | Py_XDECREF(cellvars); |
| 1408 | Py_XDECREF(filename); |
| 1409 | Py_XDECREF(name); |
| 1410 | Py_XDECREF(lnotab); |
| 1411 | } |
| 1412 | retval = v; |
| 1413 | break; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1414 | |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1415 | case TYPE_REF: |
| 1416 | n = r_long(p); |
| 1417 | if (n < 0 || n >= PyList_GET_SIZE(p->refs)) { |
Kristján Valur Jónsson | 0a7697b | 2013-10-13 15:19:56 +0000 | [diff] [blame] | 1418 | if (n == -1 && PyErr_Occurred()) |
| 1419 | break; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1420 | PyErr_SetString(PyExc_ValueError, "bad marshal data (invalid reference)"); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1421 | break; |
| 1422 | } |
| 1423 | v = PyList_GET_ITEM(p->refs, n); |
| 1424 | if (v == Py_None) { |
| 1425 | PyErr_SetString(PyExc_ValueError, "bad marshal data (invalid reference)"); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1426 | break; |
| 1427 | } |
| 1428 | Py_INCREF(v); |
| 1429 | retval = v; |
| 1430 | break; |
| 1431 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1432 | default: |
| 1433 | /* Bogus data got written, which isn't ideal. |
| 1434 | This will let you keep working and recover. */ |
| 1435 | PyErr_SetString(PyExc_ValueError, "bad marshal data (unknown type code)"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1436 | break; |
| 1437 | |
| 1438 | } |
| 1439 | p->depth--; |
| 1440 | return retval; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1441 | } |
| 1442 | |
Neal Norwitz | d85c452 | 2004-06-13 20:31:49 +0000 | [diff] [blame] | 1443 | static PyObject * |
Armin Rigo | 01ab279 | 2004-03-26 15:09:27 +0000 | [diff] [blame] | 1444 | read_object(RFILE *p) |
| 1445 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1446 | PyObject *v; |
| 1447 | if (PyErr_Occurred()) { |
| 1448 | fprintf(stderr, "XXX readobject called with exception set\n"); |
| 1449 | return NULL; |
| 1450 | } |
| 1451 | v = r_object(p); |
| 1452 | if (v == NULL && !PyErr_Occurred()) |
| 1453 | PyErr_SetString(PyExc_TypeError, "NULL object in marshal data for object"); |
| 1454 | return v; |
Armin Rigo | 01ab279 | 2004-03-26 15:09:27 +0000 | [diff] [blame] | 1455 | } |
| 1456 | |
Guido van Rossum | b8cf3e6 | 2001-10-19 01:46:21 +0000 | [diff] [blame] | 1457 | int |
| 1458 | PyMarshal_ReadShortFromFile(FILE *fp) |
| 1459 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1460 | RFILE rf; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1461 | int res; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1462 | assert(fp); |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1463 | rf.readable = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1464 | rf.fp = fp; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1465 | rf.end = rf.ptr = NULL; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1466 | rf.buf = NULL; |
| 1467 | res = r_short(&rf); |
| 1468 | if (rf.buf != NULL) |
| 1469 | PyMem_FREE(rf.buf); |
| 1470 | return res; |
Guido van Rossum | b8cf3e6 | 2001-10-19 01:46:21 +0000 | [diff] [blame] | 1471 | } |
| 1472 | |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1473 | long |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1474 | PyMarshal_ReadLongFromFile(FILE *fp) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1475 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1476 | RFILE rf; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1477 | long res; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1478 | rf.fp = fp; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1479 | rf.readable = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1480 | rf.ptr = rf.end = NULL; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1481 | rf.buf = NULL; |
| 1482 | res = r_long(&rf); |
| 1483 | if (rf.buf != NULL) |
| 1484 | PyMem_FREE(rf.buf); |
| 1485 | return res; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1486 | } |
| 1487 | |
Steve Dower | f2f373f | 2015-02-21 08:44:05 -0800 | [diff] [blame] | 1488 | /* Return size of file in bytes; < 0 if unknown or INT_MAX if too big */ |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1489 | static off_t |
| 1490 | getfilesize(FILE *fp) |
| 1491 | { |
Steve Dower | f2f373f | 2015-02-21 08:44:05 -0800 | [diff] [blame] | 1492 | struct _Py_stat_struct st; |
Victor Stinner | e134a7f | 2015-03-30 10:09:31 +0200 | [diff] [blame] | 1493 | if (_Py_fstat_noraise(fileno(fp), &st) != 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1494 | return -1; |
Steve Dower | f2f373f | 2015-02-21 08:44:05 -0800 | [diff] [blame] | 1495 | #if SIZEOF_OFF_T == 4 |
| 1496 | else if (st.st_size >= INT_MAX) |
| 1497 | return (off_t)INT_MAX; |
| 1498 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1499 | else |
Steve Dower | f2f373f | 2015-02-21 08:44:05 -0800 | [diff] [blame] | 1500 | return (off_t)st.st_size; |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1501 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1502 | |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1503 | /* If we can get the size of the file up-front, and it's reasonably small, |
| 1504 | * read it in one gulp and delegate to ...FromString() instead. Much quicker |
| 1505 | * than reading a byte at a time from file; speeds .pyc imports. |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1506 | * CAUTION: since this may read the entire remainder of the file, don't |
| 1507 | * call it unless you know you're done with the file. |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1508 | */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1509 | PyObject * |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1510 | PyMarshal_ReadLastObjectFromFile(FILE *fp) |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1511 | { |
Antoine Pitrou | 5bc7ec9 | 2010-04-21 22:56:22 +0000 | [diff] [blame] | 1512 | /* REASONABLE_FILE_LIMIT is by defn something big enough for Tkinter.pyc. */ |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1513 | #define REASONABLE_FILE_LIMIT (1L << 18) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1514 | off_t filesize; |
| 1515 | filesize = getfilesize(fp); |
| 1516 | if (filesize > 0 && filesize <= REASONABLE_FILE_LIMIT) { |
| 1517 | char* pBuf = (char *)PyMem_MALLOC(filesize); |
| 1518 | if (pBuf != NULL) { |
Serhiy Storchaka | 7e01911 | 2013-02-13 12:08:15 +0200 | [diff] [blame] | 1519 | size_t n = fread(pBuf, 1, (size_t)filesize, fp); |
| 1520 | PyObject* v = PyMarshal_ReadObjectFromString(pBuf, n); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1521 | PyMem_FREE(pBuf); |
| 1522 | return v; |
| 1523 | } |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1524 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1525 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1526 | /* We don't have fstat, or we do but the file is larger than |
| 1527 | * REASONABLE_FILE_LIMIT or malloc failed -- read a byte at a time. |
| 1528 | */ |
| 1529 | return PyMarshal_ReadObjectFromFile(fp); |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1530 | |
Tim Peters | 691e0e9 | 2001-01-18 04:39:16 +0000 | [diff] [blame] | 1531 | #undef REASONABLE_FILE_LIMIT |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1532 | } |
| 1533 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1534 | PyObject * |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1535 | PyMarshal_ReadObjectFromFile(FILE *fp) |
| 1536 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1537 | RFILE rf; |
| 1538 | PyObject *result; |
| 1539 | rf.fp = fp; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1540 | rf.readable = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1541 | rf.depth = 0; |
| 1542 | rf.ptr = rf.end = NULL; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1543 | rf.buf = NULL; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1544 | rf.refs = PyList_New(0); |
| 1545 | if (rf.refs == NULL) |
| 1546 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1547 | result = r_object(&rf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1548 | Py_DECREF(rf.refs); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1549 | if (rf.buf != NULL) |
| 1550 | PyMem_FREE(rf.buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1551 | return result; |
Tim Peters | d9b9ac8 | 2001-01-28 00:27:39 +0000 | [diff] [blame] | 1552 | } |
| 1553 | |
| 1554 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1555 | PyMarshal_ReadObjectFromString(const char *str, Py_ssize_t len) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1556 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1557 | RFILE rf; |
| 1558 | PyObject *result; |
| 1559 | rf.fp = NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1560 | rf.readable = NULL; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1561 | rf.ptr = (char *)str; |
| 1562 | rf.end = (char *)str + len; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1563 | rf.buf = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1564 | rf.depth = 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1565 | rf.refs = PyList_New(0); |
| 1566 | if (rf.refs == NULL) |
| 1567 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1568 | result = r_object(&rf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1569 | Py_DECREF(rf.refs); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1570 | if (rf.buf != NULL) |
| 1571 | PyMem_FREE(rf.buf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1572 | return result; |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1573 | } |
| 1574 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1575 | PyObject * |
Martin v. Löwis | ef82d2f | 2004-06-27 16:51:46 +0000 | [diff] [blame] | 1576 | PyMarshal_WriteObjectToString(PyObject *x, int version) |
Guido van Rossum | 3f3bb3d | 1996-08-19 22:07:17 +0000 | [diff] [blame] | 1577 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1578 | WFILE wf; |
Guido van Rossum | e6d3904 | 2007-05-09 00:01:30 +0000 | [diff] [blame] | 1579 | |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 1580 | memset(&wf, 0, sizeof(wf)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1581 | wf.str = PyBytes_FromStringAndSize((char *)NULL, 50); |
| 1582 | if (wf.str == NULL) |
| 1583 | return NULL; |
Serhiy Storchaka | c1efe5f | 2015-02-11 15:54:54 +0200 | [diff] [blame] | 1584 | wf.ptr = wf.buf = PyBytes_AS_STRING((PyBytesObject *)wf.str); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1585 | wf.end = wf.ptr + PyBytes_Size(wf.str); |
| 1586 | wf.error = WFERR_OK; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1587 | wf.version = version; |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 1588 | if (w_init_refs(&wf, version)) { |
| 1589 | Py_DECREF(wf.str); |
| 1590 | return NULL; |
| 1591 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1592 | w_object(x, &wf); |
Serhiy Storchaka | ce921c62 | 2015-02-11 15:53:31 +0200 | [diff] [blame] | 1593 | w_clear_refs(&wf); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1594 | if (wf.str != NULL) { |
| 1595 | char *base = PyBytes_AS_STRING((PyBytesObject *)wf.str); |
| 1596 | if (wf.ptr - base > PY_SSIZE_T_MAX) { |
| 1597 | Py_DECREF(wf.str); |
| 1598 | PyErr_SetString(PyExc_OverflowError, |
Serhiy Storchaka | c611a5b | 2017-03-12 08:53:22 +0200 | [diff] [blame] | 1599 | "too much marshal data for a bytes object"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1600 | return NULL; |
| 1601 | } |
| 1602 | if (_PyBytes_Resize(&wf.str, (Py_ssize_t)(wf.ptr - base)) < 0) |
| 1603 | return NULL; |
| 1604 | } |
| 1605 | if (wf.error != WFERR_OK) { |
| 1606 | Py_XDECREF(wf.str); |
| 1607 | if (wf.error == WFERR_NOMEMORY) |
| 1608 | PyErr_NoMemory(); |
| 1609 | else |
| 1610 | PyErr_SetString(PyExc_ValueError, |
| 1611 | (wf.error==WFERR_UNMARSHALLABLE)?"unmarshallable object" |
| 1612 | :"object too deeply nested to marshal"); |
| 1613 | return NULL; |
| 1614 | } |
Antoine Pitrou | 1c13f84 | 2012-03-02 18:22:23 +0100 | [diff] [blame] | 1615 | return wf.str; |
Guido van Rossum | 3f3bb3d | 1996-08-19 22:07:17 +0000 | [diff] [blame] | 1616 | } |
| 1617 | |
Guido van Rossum | 64b4552 | 1991-06-07 13:58:22 +0000 | [diff] [blame] | 1618 | /* And an interface for Python programs... */ |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1619 | /*[clinic input] |
| 1620 | marshal.dump |
| 1621 | |
| 1622 | value: object |
| 1623 | Must be a supported type. |
| 1624 | file: object |
| 1625 | Must be a writeable binary file. |
| 1626 | version: int(c_default="Py_MARSHAL_VERSION") = version |
| 1627 | Indicates the data format that dump should use. |
| 1628 | / |
| 1629 | |
| 1630 | Write the value on the open file. |
| 1631 | |
| 1632 | If the value has (or contains an object that has) an unsupported type, a |
| 1633 | ValueError exception is raised - but garbage data will also be written |
| 1634 | to the file. The object will not be properly read back by load(). |
| 1635 | [clinic start generated code]*/ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1636 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1637 | static PyObject * |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1638 | marshal_dump_impl(PyObject *module, PyObject *value, PyObject *file, |
| 1639 | int version) |
| 1640 | /*[clinic end generated code: output=aaee62c7028a7cb2 input=6c7a3c23c6fef556]*/ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1641 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1642 | /* XXX Quick hack -- need to do this differently */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1643 | PyObject *s; |
| 1644 | PyObject *res; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 1645 | _Py_IDENTIFIER(write); |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 1646 | |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1647 | s = PyMarshal_WriteObjectToString(value, version); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1648 | if (s == NULL) |
| 1649 | return NULL; |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1650 | res = _PyObject_CallMethodIdObjArgs(file, &PyId_write, s, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1651 | Py_DECREF(s); |
| 1652 | return res; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1653 | } |
| 1654 | |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1655 | /*[clinic input] |
| 1656 | marshal.load |
| 1657 | |
| 1658 | file: object |
| 1659 | Must be readable binary file. |
| 1660 | / |
| 1661 | |
| 1662 | Read one value from the open file and return it. |
| 1663 | |
| 1664 | If no valid value is read (e.g. because the data has a different Python |
| 1665 | version's incompatible marshal format), raise EOFError, ValueError or |
| 1666 | TypeError. |
| 1667 | |
| 1668 | Note: If an object containing an unsupported type was marshalled with |
| 1669 | dump(), load() will substitute None for the unmarshallable type. |
| 1670 | [clinic start generated code]*/ |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1671 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1672 | static PyObject * |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1673 | marshal_load(PyObject *module, PyObject *file) |
| 1674 | /*[clinic end generated code: output=f8e5c33233566344 input=c85c2b594cd8124a]*/ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1675 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1676 | PyObject *data, *result; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 1677 | _Py_IDENTIFIER(read); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1678 | RFILE rf; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1679 | |
| 1680 | /* |
| 1681 | * Make a call to the read method, but read zero bytes. |
| 1682 | * This is to ensure that the object passed in at least |
| 1683 | * has a read method which returns bytes. |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1684 | * This can be removed if we guarantee good error handling |
| 1685 | * for r_string() |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1686 | */ |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1687 | data = _PyObject_CallMethodId(file, &PyId_read, "i", 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1688 | if (data == NULL) |
| 1689 | return NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1690 | if (!PyBytes_Check(data)) { |
| 1691 | PyErr_Format(PyExc_TypeError, |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1692 | "file.read() returned not bytes but %.100s", |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1693 | data->ob_type->tp_name); |
| 1694 | result = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1695 | } |
| 1696 | else { |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1697 | rf.depth = 0; |
| 1698 | rf.fp = NULL; |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1699 | rf.readable = file; |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1700 | rf.ptr = rf.end = NULL; |
| 1701 | rf.buf = NULL; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1702 | if ((rf.refs = PyList_New(0)) != NULL) { |
| 1703 | result = read_object(&rf); |
| 1704 | Py_DECREF(rf.refs); |
Antoine Pitrou | 1164dfc | 2013-10-12 22:25:39 +0200 | [diff] [blame] | 1705 | if (rf.buf != NULL) |
| 1706 | PyMem_FREE(rf.buf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1707 | } else |
| 1708 | result = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1709 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1710 | Py_DECREF(data); |
| 1711 | return result; |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1712 | } |
| 1713 | |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1714 | /*[clinic input] |
| 1715 | marshal.dumps |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1716 | |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1717 | value: object |
| 1718 | Must be a supported type. |
| 1719 | version: int(c_default="Py_MARSHAL_VERSION") = version |
| 1720 | Indicates the data format that dumps should use. |
| 1721 | / |
| 1722 | |
| 1723 | Return the bytes object that would be written to a file by dump(value, file). |
| 1724 | |
| 1725 | Raise a ValueError exception if value has (or contains an object that has) an |
| 1726 | unsupported type. |
| 1727 | [clinic start generated code]*/ |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1728 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1729 | static PyObject * |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1730 | marshal_dumps_impl(PyObject *module, PyObject *value, int version) |
| 1731 | /*[clinic end generated code: output=9c200f98d7256cad input=a2139ea8608e9b27]*/ |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1732 | { |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1733 | return PyMarshal_WriteObjectToString(value, version); |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1734 | } |
| 1735 | |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1736 | /*[clinic input] |
| 1737 | marshal.loads |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1738 | |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1739 | bytes: Py_buffer |
| 1740 | / |
| 1741 | |
| 1742 | Convert the bytes-like object to a value. |
| 1743 | |
| 1744 | If no valid value is found, raise EOFError, ValueError or TypeError. Extra |
| 1745 | bytes in the input are ignored. |
| 1746 | [clinic start generated code]*/ |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1747 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1748 | static PyObject * |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1749 | marshal_loads_impl(PyObject *module, Py_buffer *bytes) |
| 1750 | /*[clinic end generated code: output=9fc65985c93d1bb1 input=6f426518459c8495]*/ |
Guido van Rossum | 0b0db8e | 1993-01-21 16:07:51 +0000 | [diff] [blame] | 1751 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1752 | RFILE rf; |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1753 | char *s = bytes->buf; |
| 1754 | Py_ssize_t n = bytes->len; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1755 | PyObject* result; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1756 | rf.fp = NULL; |
Vinay Sajip | 5bdae3b | 2011-07-02 16:42:47 +0100 | [diff] [blame] | 1757 | rf.readable = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1758 | rf.ptr = s; |
| 1759 | rf.end = s + n; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1760 | rf.depth = 0; |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1761 | if ((rf.refs = PyList_New(0)) == NULL) |
| 1762 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1763 | result = read_object(&rf); |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1764 | Py_DECREF(rf.refs); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1765 | return result; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1766 | } |
| 1767 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1768 | static PyMethodDef marshal_methods[] = { |
Serhiy Storchaka | 0767ad4 | 2017-03-12 09:20:15 +0200 | [diff] [blame] | 1769 | MARSHAL_DUMP_METHODDEF |
| 1770 | MARSHAL_LOAD_METHODDEF |
| 1771 | MARSHAL_DUMPS_METHODDEF |
| 1772 | MARSHAL_LOADS_METHODDEF |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1773 | {NULL, NULL} /* sentinel */ |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1774 | }; |
| 1775 | |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1776 | |
| 1777 | PyDoc_STRVAR(module_doc, |
| 1778 | "This module contains functions that can read and write Python values in\n\ |
| 1779 | a binary format. The format is specific to Python, but independent of\n\ |
| 1780 | machine architecture issues.\n\ |
| 1781 | \n\ |
| 1782 | Not all Python object types are supported; in general, only objects\n\ |
| 1783 | whose value is independent from a particular invocation of Python can be\n\ |
| 1784 | written and read by this module. The following types are supported:\n\ |
| 1785 | None, integers, floating point numbers, strings, bytes, bytearrays,\n\ |
| 1786 | tuples, lists, sets, dictionaries, and code objects, where it\n\ |
| 1787 | should be understood that tuples, lists and dictionaries are only\n\ |
| 1788 | supported as long as the values contained therein are themselves\n\ |
| 1789 | supported; and recursive lists and dictionaries should not be written\n\ |
| 1790 | (they will cause infinite loops).\n\ |
| 1791 | \n\ |
| 1792 | Variables:\n\ |
| 1793 | \n\ |
| 1794 | version -- indicates the format that the module uses. Version 0 is the\n\ |
| 1795 | historical format, version 1 shares interned strings and version 2\n\ |
| 1796 | uses a binary format for floating point numbers.\n\ |
Kristján Valur Jónsson | d7009c6 | 2013-03-19 18:02:10 -0700 | [diff] [blame] | 1797 | 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] | 1798 | \n\ |
| 1799 | Functions:\n\ |
| 1800 | \n\ |
| 1801 | dump() -- write value to a file\n\ |
| 1802 | load() -- read value from a file\n\ |
Serhiy Storchaka | c611a5b | 2017-03-12 08:53:22 +0200 | [diff] [blame] | 1803 | dumps() -- marshal value as a bytes object\n\ |
| 1804 | loads() -- read value from a bytes-like object"); |
R. David Murray | dd226ea | 2009-05-13 12:27:21 +0000 | [diff] [blame] | 1805 | |
| 1806 | |
| 1807 | |
Brett Cannon | 429ef65 | 2008-06-27 00:35:35 +0000 | [diff] [blame] | 1808 | static struct PyModuleDef marshalmodule = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1809 | PyModuleDef_HEAD_INIT, |
| 1810 | "marshal", |
| 1811 | module_doc, |
| 1812 | 0, |
| 1813 | marshal_methods, |
| 1814 | NULL, |
| 1815 | NULL, |
| 1816 | NULL, |
| 1817 | NULL |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 1818 | }; |
| 1819 | |
Jason Tishler | 6bc06ec | 2003-09-04 11:59:50 +0000 | [diff] [blame] | 1820 | PyMODINIT_FUNC |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1821 | PyMarshal_Init(void) |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1822 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1823 | PyObject *mod = PyModule_Create(&marshalmodule); |
| 1824 | if (mod == NULL) |
| 1825 | return NULL; |
| 1826 | PyModule_AddIntConstant(mod, "version", Py_MARSHAL_VERSION); |
| 1827 | return mod; |
Guido van Rossum | dce2e3d | 1991-06-04 19:42:30 +0000 | [diff] [blame] | 1828 | } |