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a6ec74c1 JH |
1 | /* pp_pack.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b5f8cc5c | 4 | * 2000, 2001, 2002, 2003, 2004, by Larry Wall and others |
a6ec74c1 JH |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
d31a8517 AT |
11 | /* |
12 | * He still hopefully carried some of his gear in his pack: a small tinder-box, | |
13 | * two small shallow pans, the smaller fitting into the larger; inside them a | |
14 | * wooden spoon, a short two-pronged fork and some skewers were stowed; and | |
15 | * hidden at the bottom of the pack in a flat wooden box a dwindling treasure, | |
16 | * some salt. | |
17 | */ | |
18 | ||
166f8a29 DM |
19 | /* This file contains pp ("push/pop") functions that |
20 | * execute the opcodes that make up a perl program. A typical pp function | |
21 | * expects to find its arguments on the stack, and usually pushes its | |
22 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
23 | * contains a pointer to the relevant pp_foo() function. | |
24 | * | |
25 | * This particular file just contains pp_pack() and pp_unpack(). See the | |
26 | * other pp*.c files for the rest of the pp_ functions. | |
27 | */ | |
28 | ||
29 | ||
a6ec74c1 JH |
30 | #include "EXTERN.h" |
31 | #define PERL_IN_PP_PACK_C | |
32 | #include "perl.h" | |
33 | ||
34 | /* | |
a6ec74c1 JH |
35 | * Offset for integer pack/unpack. |
36 | * | |
37 | * On architectures where I16 and I32 aren't really 16 and 32 bits, | |
38 | * which for now are all Crays, pack and unpack have to play games. | |
39 | */ | |
40 | ||
41 | /* | |
42 | * These values are required for portability of pack() output. | |
43 | * If they're not right on your machine, then pack() and unpack() | |
44 | * wouldn't work right anyway; you'll need to apply the Cray hack. | |
45 | * (I'd like to check them with #if, but you can't use sizeof() in | |
46 | * the preprocessor.) --??? | |
47 | */ | |
48 | /* | |
49 | The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE | |
50 | defines are now in config.h. --Andy Dougherty April 1998 | |
51 | */ | |
52 | #define SIZE16 2 | |
53 | #define SIZE32 4 | |
54 | ||
55 | /* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack(). | |
56 | --jhi Feb 1999 */ | |
57 | ||
1109a392 MHM |
58 | #if U16SIZE > SIZE16 || U32SIZE > SIZE32 |
59 | # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */ | |
a6ec74c1 JH |
60 | # define OFF16(p) (char*)(p) |
61 | # define OFF32(p) (char*)(p) | |
62 | # else | |
1109a392 | 63 | # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */ |
a6ec74c1 JH |
64 | # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16)) |
65 | # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32)) | |
66 | # else | |
67 | }}}} bad cray byte order | |
68 | # endif | |
69 | # endif | |
70 | # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char)) | |
71 | # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char)) | |
72 | # define COPYNN(s,p,n) (*(p) = 0, Copy(s, (char *)(p), n, char)) | |
73 | # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16) | |
74 | # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32) | |
75 | #else | |
76 | # define COPY16(s,p) Copy(s, p, SIZE16, char) | |
77 | # define COPY32(s,p) Copy(s, p, SIZE32, char) | |
78 | # define COPYNN(s,p,n) Copy(s, (char *)(p), n, char) | |
79 | # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16) | |
80 | # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32) | |
81 | #endif | |
82 | ||
49704364 WL |
83 | /* Avoid stack overflow due to pathological templates. 100 should be plenty. */ |
84 | #define MAX_SUB_TEMPLATE_LEVEL 100 | |
85 | ||
66c611c5 | 86 | /* flags (note that type modifiers can also be used as flags!) */ |
49704364 WL |
87 | #define FLAG_UNPACK_ONLY_ONE 0x10 |
88 | #define FLAG_UNPACK_DO_UTF8 0x08 | |
89 | #define FLAG_SLASH 0x04 | |
90 | #define FLAG_COMMA 0x02 | |
91 | #define FLAG_PACK 0x01 | |
92 | ||
a6ec74c1 JH |
93 | STATIC SV * |
94 | S_mul128(pTHX_ SV *sv, U8 m) | |
95 | { | |
96 | STRLEN len; | |
97 | char *s = SvPV(sv, len); | |
98 | char *t; | |
99 | U32 i = 0; | |
100 | ||
101 | if (!strnEQ(s, "0000", 4)) { /* need to grow sv */ | |
102 | SV *tmpNew = newSVpvn("0000000000", 10); | |
103 | ||
104 | sv_catsv(tmpNew, sv); | |
105 | SvREFCNT_dec(sv); /* free old sv */ | |
106 | sv = tmpNew; | |
107 | s = SvPV(sv, len); | |
108 | } | |
109 | t = s + len - 1; | |
110 | while (!*t) /* trailing '\0'? */ | |
111 | t--; | |
112 | while (t > s) { | |
113 | i = ((*t - '0') << 7) + m; | |
eb160463 GS |
114 | *(t--) = '0' + (char)(i % 10); |
115 | m = (char)(i / 10); | |
a6ec74c1 JH |
116 | } |
117 | return (sv); | |
118 | } | |
119 | ||
120 | /* Explosives and implosives. */ | |
121 | ||
122 | #if 'I' == 73 && 'J' == 74 | |
123 | /* On an ASCII/ISO kind of system */ | |
124 | #define ISUUCHAR(ch) ((ch) >= ' ' && (ch) < 'a') | |
125 | #else | |
126 | /* | |
127 | Some other sort of character set - use memchr() so we don't match | |
128 | the null byte. | |
129 | */ | |
130 | #define ISUUCHAR(ch) (memchr(PL_uuemap, (ch), sizeof(PL_uuemap)-1) || (ch) == ' ') | |
131 | #endif | |
132 | ||
66c611c5 | 133 | /* type modifiers */ |
62f95557 | 134 | #define TYPE_IS_SHRIEKING 0x100 |
1109a392 MHM |
135 | #define TYPE_IS_BIG_ENDIAN 0x200 |
136 | #define TYPE_IS_LITTLE_ENDIAN 0x400 | |
137 | #define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN) | |
66c611c5 | 138 | #define TYPE_ENDIANNESS(t) ((t) & TYPE_ENDIANNESS_MASK) |
1109a392 | 139 | #define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK) |
66c611c5 | 140 | #define TYPE_MODIFIERS(t) ((t) & ~0xFF) |
1109a392 MHM |
141 | #define TYPE_NO_MODIFIERS(t) ((t) & 0xFF) |
142 | ||
66c611c5 MHM |
143 | #define ENDIANNESS_ALLOWED_TYPES "sSiIlLqQjJfFdDpP(" |
144 | ||
1109a392 MHM |
145 | #define DO_BO_UNPACK(var, type) \ |
146 | STMT_START { \ | |
66c611c5 | 147 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
148 | case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \ |
149 | case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \ | |
150 | default: break; \ | |
151 | } \ | |
152 | } STMT_END | |
153 | ||
154 | #define DO_BO_PACK(var, type) \ | |
155 | STMT_START { \ | |
66c611c5 | 156 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
157 | case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \ |
158 | case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \ | |
159 | default: break; \ | |
160 | } \ | |
161 | } STMT_END | |
162 | ||
163 | #define DO_BO_UNPACK_PTR(var, type, pre_cast) \ | |
164 | STMT_START { \ | |
66c611c5 | 165 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
166 | case TYPE_IS_BIG_ENDIAN: \ |
167 | var = (void *) my_betoh ## type ((pre_cast) var); \ | |
168 | break; \ | |
169 | case TYPE_IS_LITTLE_ENDIAN: \ | |
170 | var = (void *) my_letoh ## type ((pre_cast) var); \ | |
171 | break; \ | |
172 | default: \ | |
173 | break; \ | |
174 | } \ | |
175 | } STMT_END | |
176 | ||
177 | #define DO_BO_PACK_PTR(var, type, pre_cast) \ | |
178 | STMT_START { \ | |
66c611c5 | 179 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
180 | case TYPE_IS_BIG_ENDIAN: \ |
181 | var = (void *) my_htobe ## type ((pre_cast) var); \ | |
182 | break; \ | |
183 | case TYPE_IS_LITTLE_ENDIAN: \ | |
184 | var = (void *) my_htole ## type ((pre_cast) var); \ | |
185 | break; \ | |
186 | default: \ | |
187 | break; \ | |
188 | } \ | |
189 | } STMT_END | |
190 | ||
191 | #define BO_CANT_DOIT(action, type) \ | |
66c611c5 MHM |
192 | STMT_START { \ |
193 | switch (TYPE_ENDIANNESS(datumtype)) { \ | |
1109a392 MHM |
194 | case TYPE_IS_BIG_ENDIAN: \ |
195 | Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \ | |
196 | "platform", #action, #type); \ | |
197 | break; \ | |
198 | case TYPE_IS_LITTLE_ENDIAN: \ | |
199 | Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \ | |
200 | "platform", #action, #type); \ | |
201 | break; \ | |
202 | default: \ | |
203 | break; \ | |
204 | } \ | |
205 | } STMT_END | |
206 | ||
207 | #if PTRSIZE == INTSIZE | |
208 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int) | |
209 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int) | |
210 | #elif PTRSIZE == LONGSIZE | |
211 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long) | |
212 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long) | |
213 | #else | |
214 | # define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer) | |
215 | # define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer) | |
216 | #endif | |
217 | ||
218 | #if defined(my_htolen) && defined(my_letohn) && \ | |
219 | defined(my_htoben) && defined(my_betohn) | |
220 | # define DO_BO_UNPACK_N(var, type) \ | |
221 | STMT_START { \ | |
66c611c5 | 222 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
223 | case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\ |
224 | case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\ | |
225 | default: break; \ | |
226 | } \ | |
227 | } STMT_END | |
228 | ||
229 | # define DO_BO_PACK_N(var, type) \ | |
230 | STMT_START { \ | |
66c611c5 | 231 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 MHM |
232 | case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\ |
233 | case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\ | |
234 | default: break; \ | |
235 | } \ | |
236 | } STMT_END | |
237 | #else | |
238 | # define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type) | |
239 | # define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type) | |
240 | #endif | |
62f95557 | 241 | |
206947d2 | 242 | /* Returns the sizeof() struct described by pat */ |
028d1f6d | 243 | STATIC I32 |
49704364 | 244 | S_measure_struct(pTHX_ register tempsym_t* symptr) |
206947d2 | 245 | { |
49704364 | 246 | register I32 len = 0; |
206947d2 | 247 | register I32 total = 0; |
49704364 WL |
248 | int star; |
249 | ||
206947d2 IZ |
250 | register int size; |
251 | ||
49704364 | 252 | while (next_symbol(symptr)) { |
206947d2 | 253 | |
49704364 WL |
254 | switch( symptr->howlen ){ |
255 | case e_no_len: | |
256 | case e_number: | |
257 | len = symptr->length; | |
258 | break; | |
259 | case e_star: | |
260 | Perl_croak(aTHX_ "Within []-length '*' not allowed in %s", | |
261 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
262 | break; | |
263 | } | |
264 | ||
1109a392 MHM |
265 | /* endianness doesn't influence the size of a type */ |
266 | switch(TYPE_NO_ENDIANNESS(symptr->code)) { | |
206947d2 | 267 | default: |
1109a392 MHM |
268 | Perl_croak(aTHX_ "Invalid type '%c' in %s", |
269 | (int)TYPE_NO_MODIFIERS(symptr->code), | |
49704364 | 270 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
206947d2 IZ |
271 | case '@': |
272 | case '/': | |
273 | case 'U': /* XXXX Is it correct? */ | |
274 | case 'w': | |
275 | case 'u': | |
49704364 WL |
276 | Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s", |
277 | (int)symptr->code, | |
278 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
206947d2 IZ |
279 | case '%': |
280 | size = 0; | |
281 | break; | |
282 | case '(': | |
283 | { | |
49704364 WL |
284 | tempsym_t savsym = *symptr; |
285 | symptr->patptr = savsym.grpbeg; | |
286 | symptr->patend = savsym.grpend; | |
62f95557 IZ |
287 | /* XXXX Theoretically, we need to measure many times at different |
288 | positions, since the subexpression may contain | |
289 | alignment commands, but be not of aligned length. | |
290 | Need to detect this and croak(). */ | |
49704364 WL |
291 | size = measure_struct(symptr); |
292 | *symptr = savsym; | |
206947d2 IZ |
293 | break; |
294 | } | |
62f95557 IZ |
295 | case 'X' | TYPE_IS_SHRIEKING: |
296 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. */ | |
297 | if (!len) /* Avoid division by 0 */ | |
298 | len = 1; | |
299 | len = total % len; /* Assumed: the start is aligned. */ | |
300 | /* FALL THROUGH */ | |
206947d2 IZ |
301 | case 'X': |
302 | size = -1; | |
303 | if (total < len) | |
49704364 WL |
304 | Perl_croak(aTHX_ "'X' outside of string in %s", |
305 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
206947d2 | 306 | break; |
62f95557 IZ |
307 | case 'x' | TYPE_IS_SHRIEKING: |
308 | if (!len) /* Avoid division by 0 */ | |
309 | len = 1; | |
310 | star = total % len; /* Assumed: the start is aligned. */ | |
311 | if (star) /* Other portable ways? */ | |
312 | len = len - star; | |
313 | else | |
314 | len = 0; | |
315 | /* FALL THROUGH */ | |
206947d2 IZ |
316 | case 'x': |
317 | case 'A': | |
318 | case 'Z': | |
319 | case 'a': | |
320 | case 'c': | |
321 | case 'C': | |
322 | size = 1; | |
323 | break; | |
324 | case 'B': | |
325 | case 'b': | |
326 | len = (len + 7)/8; | |
327 | size = 1; | |
328 | break; | |
329 | case 'H': | |
330 | case 'h': | |
331 | len = (len + 1)/2; | |
332 | size = 1; | |
333 | break; | |
49704364 WL |
334 | case 's' | TYPE_IS_SHRIEKING: |
335 | #if SHORTSIZE != SIZE16 | |
336 | size = sizeof(short); | |
337 | break; | |
338 | #else | |
339 | /* FALL THROUGH */ | |
340 | #endif | |
206947d2 | 341 | case 's': |
206947d2 | 342 | size = SIZE16; |
49704364 WL |
343 | break; |
344 | case 'S' | TYPE_IS_SHRIEKING: | |
345 | #if SHORTSIZE != SIZE16 | |
346 | size = sizeof(unsigned short); | |
347 | break; | |
206947d2 | 348 | #else |
49704364 | 349 | /* FALL THROUGH */ |
206947d2 | 350 | #endif |
068bd2e7 MHM |
351 | case 'v' | TYPE_IS_SHRIEKING: |
352 | case 'n' | TYPE_IS_SHRIEKING: | |
206947d2 IZ |
353 | case 'v': |
354 | case 'n': | |
355 | case 'S': | |
206947d2 | 356 | size = SIZE16; |
206947d2 | 357 | break; |
49704364 | 358 | case 'i' | TYPE_IS_SHRIEKING: |
206947d2 IZ |
359 | case 'i': |
360 | size = sizeof(int); | |
361 | break; | |
49704364 | 362 | case 'I' | TYPE_IS_SHRIEKING: |
206947d2 IZ |
363 | case 'I': |
364 | size = sizeof(unsigned int); | |
365 | break; | |
92d41999 JH |
366 | case 'j': |
367 | size = IVSIZE; | |
368 | break; | |
369 | case 'J': | |
370 | size = UVSIZE; | |
371 | break; | |
49704364 WL |
372 | case 'l' | TYPE_IS_SHRIEKING: |
373 | #if LONGSIZE != SIZE32 | |
374 | size = sizeof(long); | |
375 | break; | |
376 | #else | |
377 | /* FALL THROUGH */ | |
378 | #endif | |
206947d2 | 379 | case 'l': |
206947d2 | 380 | size = SIZE32; |
49704364 WL |
381 | break; |
382 | case 'L' | TYPE_IS_SHRIEKING: | |
383 | #if LONGSIZE != SIZE32 | |
384 | size = sizeof(unsigned long); | |
385 | break; | |
206947d2 | 386 | #else |
49704364 | 387 | /* FALL THROUGH */ |
206947d2 | 388 | #endif |
068bd2e7 MHM |
389 | case 'V' | TYPE_IS_SHRIEKING: |
390 | case 'N' | TYPE_IS_SHRIEKING: | |
206947d2 IZ |
391 | case 'V': |
392 | case 'N': | |
393 | case 'L': | |
206947d2 | 394 | size = SIZE32; |
206947d2 IZ |
395 | break; |
396 | case 'P': | |
397 | len = 1; | |
398 | /* FALL THROUGH */ | |
399 | case 'p': | |
400 | size = sizeof(char*); | |
401 | break; | |
402 | #ifdef HAS_QUAD | |
403 | case 'q': | |
404 | size = sizeof(Quad_t); | |
405 | break; | |
406 | case 'Q': | |
407 | size = sizeof(Uquad_t); | |
408 | break; | |
409 | #endif | |
410 | case 'f': | |
206947d2 IZ |
411 | size = sizeof(float); |
412 | break; | |
413 | case 'd': | |
206947d2 IZ |
414 | size = sizeof(double); |
415 | break; | |
92d41999 JH |
416 | case 'F': |
417 | size = NVSIZE; | |
418 | break; | |
419 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) | |
420 | case 'D': | |
421 | size = LONG_DOUBLESIZE; | |
422 | break; | |
423 | #endif | |
206947d2 IZ |
424 | } |
425 | total += len * size; | |
426 | } | |
427 | return total; | |
428 | } | |
429 | ||
49704364 WL |
430 | |
431 | /* locate matching closing parenthesis or bracket | |
432 | * returns char pointer to char after match, or NULL | |
433 | */ | |
434 | STATIC char * | |
435 | S_group_end(pTHX_ register char *patptr, register char *patend, char ender) | |
18529408 | 436 | { |
49704364 WL |
437 | while (patptr < patend) { |
438 | char c = *patptr++; | |
439 | ||
440 | if (isSPACE(c)) | |
441 | continue; | |
442 | else if (c == ender) | |
443 | return patptr-1; | |
444 | else if (c == '#') { | |
445 | while (patptr < patend && *patptr != '\n') | |
446 | patptr++; | |
447 | continue; | |
448 | } else if (c == '(') | |
449 | patptr = group_end(patptr, patend, ')') + 1; | |
450 | else if (c == '[') | |
451 | patptr = group_end(patptr, patend, ']') + 1; | |
18529408 | 452 | } |
49704364 WL |
453 | Perl_croak(aTHX_ "No group ending character '%c' found in template", |
454 | ender); | |
455 | return 0; | |
18529408 IZ |
456 | } |
457 | ||
49704364 WL |
458 | |
459 | /* Convert unsigned decimal number to binary. | |
460 | * Expects a pointer to the first digit and address of length variable | |
461 | * Advances char pointer to 1st non-digit char and returns number | |
462 | */ | |
18529408 | 463 | STATIC char * |
49704364 WL |
464 | S_get_num(pTHX_ register char *patptr, I32 *lenptr ) |
465 | { | |
466 | I32 len = *patptr++ - '0'; | |
467 | while (isDIGIT(*patptr)) { | |
468 | if (len >= 0x7FFFFFFF/10) | |
469 | Perl_croak(aTHX_ "pack/unpack repeat count overflow"); | |
470 | len = (len * 10) + (*patptr++ - '0'); | |
471 | } | |
472 | *lenptr = len; | |
473 | return patptr; | |
474 | } | |
475 | ||
476 | /* The marvellous template parsing routine: Using state stored in *symptr, | |
477 | * locates next template code and count | |
478 | */ | |
479 | STATIC bool | |
480 | S_next_symbol(pTHX_ register tempsym_t* symptr ) | |
18529408 | 481 | { |
49704364 WL |
482 | register char* patptr = symptr->patptr; |
483 | register char* patend = symptr->patend; | |
484 | ||
485 | symptr->flags &= ~FLAG_SLASH; | |
486 | ||
487 | while (patptr < patend) { | |
488 | if (isSPACE(*patptr)) | |
489 | patptr++; | |
490 | else if (*patptr == '#') { | |
491 | patptr++; | |
492 | while (patptr < patend && *patptr != '\n') | |
493 | patptr++; | |
494 | if (patptr < patend) | |
495 | patptr++; | |
496 | } else { | |
497 | /* We should have found a template code */ | |
498 | I32 code = *patptr++ & 0xFF; | |
66c611c5 | 499 | U32 inherited_modifiers = 0; |
49704364 WL |
500 | |
501 | if (code == ','){ /* grandfather in commas but with a warning */ | |
502 | if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){ | |
503 | symptr->flags |= FLAG_COMMA; | |
504 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), | |
505 | "Invalid type ',' in %s", | |
506 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
507 | } | |
508 | continue; | |
509 | } | |
510 | ||
511 | /* for '(', skip to ')' */ | |
512 | if (code == '(') { | |
513 | if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' ) | |
514 | Perl_croak(aTHX_ "()-group starts with a count in %s", | |
515 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
516 | symptr->grpbeg = patptr; | |
517 | patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') ); | |
518 | if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL ) | |
519 | Perl_croak(aTHX_ "Too deeply nested ()-groups in %s", | |
520 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
521 | } | |
522 | ||
66c611c5 MHM |
523 | /* look for group modifiers to inherit */ |
524 | if (TYPE_ENDIANNESS(symptr->flags)) { | |
525 | if (strchr(ENDIANNESS_ALLOWED_TYPES, TYPE_NO_MODIFIERS(code))) | |
526 | inherited_modifiers |= TYPE_ENDIANNESS(symptr->flags); | |
527 | } | |
528 | ||
1109a392 MHM |
529 | /* look for modifiers */ |
530 | while (patptr < patend) { | |
531 | const char *allowed; | |
532 | I32 modifier = 0; | |
533 | switch (*patptr) { | |
534 | case '!': | |
535 | modifier = TYPE_IS_SHRIEKING; | |
536 | allowed = "sSiIlLxXnNvV"; | |
537 | break; | |
538 | case '>': | |
539 | modifier = TYPE_IS_BIG_ENDIAN; | |
66c611c5 | 540 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 MHM |
541 | break; |
542 | case '<': | |
543 | modifier = TYPE_IS_LITTLE_ENDIAN; | |
66c611c5 | 544 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 MHM |
545 | break; |
546 | default: | |
547 | break; | |
548 | } | |
66c611c5 | 549 | |
1109a392 MHM |
550 | if (modifier == 0) |
551 | break; | |
66c611c5 | 552 | |
1109a392 MHM |
553 | if (!strchr(allowed, TYPE_NO_MODIFIERS(code))) |
554 | Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr, | |
555 | allowed, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
66c611c5 MHM |
556 | |
557 | if (TYPE_ENDIANNESS(code | modifier) == TYPE_ENDIANNESS_MASK) | |
1109a392 MHM |
558 | Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s", |
559 | (int) TYPE_NO_MODIFIERS(code), | |
560 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
66c611c5 MHM |
561 | else if (TYPE_ENDIANNESS(code | modifier | inherited_modifiers) == |
562 | TYPE_ENDIANNESS_MASK) | |
563 | Perl_croak(aTHX_ "Can't use '%c' in a group with different byte-order in %s", | |
564 | *patptr, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
565 | ||
1109a392 MHM |
566 | if (ckWARN(WARN_UNPACK)) { |
567 | if (code & modifier) | |
568 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), | |
569 | "Duplicate modifier '%c' after '%c' in %s", | |
570 | *patptr, (int) TYPE_NO_MODIFIERS(code), | |
571 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
572 | } | |
66c611c5 | 573 | |
1109a392 MHM |
574 | code |= modifier; |
575 | patptr++; | |
49704364 WL |
576 | } |
577 | ||
66c611c5 MHM |
578 | /* inherit modifiers */ |
579 | code |= inherited_modifiers; | |
580 | ||
49704364 WL |
581 | /* look for count and/or / */ |
582 | if (patptr < patend) { | |
583 | if (isDIGIT(*patptr)) { | |
584 | patptr = get_num( patptr, &symptr->length ); | |
585 | symptr->howlen = e_number; | |
586 | ||
587 | } else if (*patptr == '*') { | |
588 | patptr++; | |
589 | symptr->howlen = e_star; | |
590 | ||
591 | } else if (*patptr == '[') { | |
592 | char* lenptr = ++patptr; | |
593 | symptr->howlen = e_number; | |
594 | patptr = group_end( patptr, patend, ']' ) + 1; | |
595 | /* what kind of [] is it? */ | |
596 | if (isDIGIT(*lenptr)) { | |
597 | lenptr = get_num( lenptr, &symptr->length ); | |
598 | if( *lenptr != ']' ) | |
599 | Perl_croak(aTHX_ "Malformed integer in [] in %s", | |
600 | symptr->flags & FLAG_PACK ? "pack" : "unpack"); | |
601 | } else { | |
602 | tempsym_t savsym = *symptr; | |
603 | symptr->patend = patptr-1; | |
604 | symptr->patptr = lenptr; | |
605 | savsym.length = measure_struct(symptr); | |
606 | *symptr = savsym; | |
607 | } | |
608 | } else { | |
609 | symptr->howlen = e_no_len; | |
610 | symptr->length = 1; | |
611 | } | |
612 | ||
613 | /* try to find / */ | |
614 | while (patptr < patend) { | |
615 | if (isSPACE(*patptr)) | |
616 | patptr++; | |
617 | else if (*patptr == '#') { | |
618 | patptr++; | |
619 | while (patptr < patend && *patptr != '\n') | |
620 | patptr++; | |
621 | if (patptr < patend) | |
622 | patptr++; | |
623 | } else { | |
66c611c5 | 624 | if (*patptr == '/') { |
49704364 WL |
625 | symptr->flags |= FLAG_SLASH; |
626 | patptr++; | |
66c611c5 MHM |
627 | if (patptr < patend && |
628 | (isDIGIT(*patptr) || *patptr == '*' || *patptr == '[')) | |
49704364 WL |
629 | Perl_croak(aTHX_ "'/' does not take a repeat count in %s", |
630 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); | |
631 | } | |
632 | break; | |
633 | } | |
18529408 | 634 | } |
49704364 WL |
635 | } else { |
636 | /* at end - no count, no / */ | |
637 | symptr->howlen = e_no_len; | |
638 | symptr->length = 1; | |
639 | } | |
640 | ||
641 | symptr->code = code; | |
642 | symptr->patptr = patptr; | |
643 | return TRUE; | |
18529408 | 644 | } |
49704364 WL |
645 | } |
646 | symptr->patptr = patptr; | |
647 | return FALSE; | |
18529408 IZ |
648 | } |
649 | ||
18529408 IZ |
650 | /* |
651 | =for apidoc unpack_str | |
652 | ||
7accc089 JH |
653 | The engine implementing unpack() Perl function. Note: parameters strbeg, new_s |
654 | and ocnt are not used. This call should not be used, use unpackstring instead. | |
18529408 IZ |
655 | |
656 | =cut */ | |
657 | ||
658 | I32 | |
659 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) | |
a6ec74c1 | 660 | { |
49704364 WL |
661 | tempsym_t sym = { 0 }; |
662 | sym.patptr = pat; | |
663 | sym.patend = patend; | |
664 | sym.flags = flags; | |
665 | ||
666 | return unpack_rec(&sym, s, s, strend, NULL ); | |
667 | } | |
668 | ||
7accc089 JH |
669 | /* |
670 | =for apidoc unpackstring | |
671 | ||
608d3aed WL |
672 | The engine implementing unpack() Perl function. C<unpackstring> puts the |
673 | extracted list items on the stack and returns the number of elements. | |
674 | Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function. | |
7accc089 JH |
675 | |
676 | =cut */ | |
677 | ||
678 | I32 | |
679 | Perl_unpackstring(pTHX_ char *pat, register char *patend, register char *s, char *strend, U32 flags) | |
680 | { | |
681 | tempsym_t sym = { 0 }; | |
682 | sym.patptr = pat; | |
683 | sym.patend = patend; | |
684 | sym.flags = flags; | |
685 | ||
686 | return unpack_rec(&sym, s, s, strend, NULL ); | |
687 | } | |
688 | ||
49704364 WL |
689 | STATIC |
690 | I32 | |
691 | S_unpack_rec(pTHX_ register tempsym_t* symptr, register char *s, char *strbeg, char *strend, char **new_s ) | |
692 | { | |
a6ec74c1 | 693 | dSP; |
a6ec74c1 | 694 | I32 datumtype; |
49704364 | 695 | register I32 len = 0; |
a6ec74c1 JH |
696 | register I32 bits = 0; |
697 | register char *str; | |
18529408 IZ |
698 | SV *sv; |
699 | I32 start_sp_offset = SP - PL_stack_base; | |
49704364 | 700 | howlen_t howlen; |
a6ec74c1 JH |
701 | |
702 | /* These must not be in registers: */ | |
ef108786 MHM |
703 | I16 ai16; |
704 | U16 au16; | |
705 | I32 ai32; | |
706 | U32 au32; | |
a6ec74c1 JH |
707 | #ifdef HAS_QUAD |
708 | Quad_t aquad; | |
ef108786 MHM |
709 | Uquad_t auquad; |
710 | #endif | |
711 | #if SHORTSIZE != SIZE16 | |
712 | short ashort; | |
713 | unsigned short aushort; | |
a6ec74c1 | 714 | #endif |
ef108786 | 715 | int aint; |
a6ec74c1 | 716 | unsigned int auint; |
ef108786 MHM |
717 | long along; |
718 | #if LONGSIZE != SIZE32 | |
719 | unsigned long aulong; | |
a6ec74c1 JH |
720 | #endif |
721 | char *aptr; | |
722 | float afloat; | |
723 | double adouble; | |
ef108786 MHM |
724 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
725 | long double aldouble; | |
726 | #endif | |
727 | IV aiv; | |
728 | UV auv; | |
729 | NV anv; | |
730 | ||
a6ec74c1 | 731 | I32 checksum = 0; |
92d41999 | 732 | UV cuv = 0; |
a6ec74c1 | 733 | NV cdouble = 0.0; |
92d41999 | 734 | const int bits_in_uv = 8 * sizeof(cuv); |
49704364 WL |
735 | char* strrelbeg = s; |
736 | bool beyond = FALSE; | |
737 | bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0; | |
738 | ||
49704364 WL |
739 | while (next_symbol(symptr)) { |
740 | datumtype = symptr->code; | |
206947d2 IZ |
741 | /* do first one only unless in list context |
742 | / is implemented by unpacking the count, then poping it from the | |
743 | stack, so must check that we're not in the middle of a / */ | |
49704364 | 744 | if ( unpack_only_one |
206947d2 | 745 | && (SP - PL_stack_base == start_sp_offset + 1) |
49704364 | 746 | && (datumtype != '/') ) /* XXX can this be omitted */ |
206947d2 | 747 | break; |
49704364 WL |
748 | |
749 | switch( howlen = symptr->howlen ){ | |
750 | case e_no_len: | |
751 | case e_number: | |
752 | len = symptr->length; | |
753 | break; | |
754 | case e_star: | |
755 | len = strend - strbeg; /* long enough */ | |
756 | break; | |
757 | } | |
18529408 | 758 | |
a6ec74c1 | 759 | redo_switch: |
49704364 | 760 | beyond = s >= strend; |
1109a392 | 761 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 | 762 | default: |
1109a392 | 763 | Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) ); |
49704364 | 764 | |
a6ec74c1 | 765 | case '%': |
49704364 | 766 | if (howlen == e_no_len) |
18529408 | 767 | len = 16; /* len is not specified */ |
a6ec74c1 | 768 | checksum = len; |
92d41999 | 769 | cuv = 0; |
a6ec74c1 | 770 | cdouble = 0; |
18529408 | 771 | continue; |
a6ec74c1 | 772 | break; |
18529408 IZ |
773 | case '(': |
774 | { | |
18529408 | 775 | char *ss = s; /* Move from register */ |
49704364 | 776 | tempsym_t savsym = *symptr; |
66c611c5 MHM |
777 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
778 | symptr->flags |= group_modifiers; | |
49704364 WL |
779 | symptr->patend = savsym.grpend; |
780 | symptr->level++; | |
18529408 IZ |
781 | PUTBACK; |
782 | while (len--) { | |
49704364 WL |
783 | symptr->patptr = savsym.grpbeg; |
784 | unpack_rec(symptr, ss, strbeg, strend, &ss ); | |
785 | if (ss == strend && savsym.howlen == e_star) | |
786 | break; /* No way to continue */ | |
18529408 IZ |
787 | } |
788 | SPAGAIN; | |
789 | s = ss; | |
66c611c5 | 790 | symptr->flags &= ~group_modifiers; |
49704364 WL |
791 | savsym.flags = symptr->flags; |
792 | *symptr = savsym; | |
18529408 IZ |
793 | break; |
794 | } | |
a6ec74c1 | 795 | case '@': |
49704364 WL |
796 | if (len > strend - strrelbeg) |
797 | Perl_croak(aTHX_ "'@' outside of string in unpack"); | |
798 | s = strrelbeg + len; | |
a6ec74c1 | 799 | break; |
62f95557 IZ |
800 | case 'X' | TYPE_IS_SHRIEKING: |
801 | if (!len) /* Avoid division by 0 */ | |
802 | len = 1; | |
803 | len = (s - strbeg) % len; | |
804 | /* FALL THROUGH */ | |
a6ec74c1 JH |
805 | case 'X': |
806 | if (len > s - strbeg) | |
49704364 | 807 | Perl_croak(aTHX_ "'X' outside of string in unpack" ); |
a6ec74c1 JH |
808 | s -= len; |
809 | break; | |
62f95557 IZ |
810 | case 'x' | TYPE_IS_SHRIEKING: |
811 | if (!len) /* Avoid division by 0 */ | |
812 | len = 1; | |
813 | aint = (s - strbeg) % len; | |
814 | if (aint) /* Other portable ways? */ | |
815 | len = len - aint; | |
816 | else | |
817 | len = 0; | |
818 | /* FALL THROUGH */ | |
a6ec74c1 JH |
819 | case 'x': |
820 | if (len > strend - s) | |
49704364 | 821 | Perl_croak(aTHX_ "'x' outside of string in unpack"); |
a6ec74c1 JH |
822 | s += len; |
823 | break; | |
824 | case '/': | |
49704364 WL |
825 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
826 | break; | |
a6ec74c1 JH |
827 | case 'A': |
828 | case 'Z': | |
829 | case 'a': | |
830 | if (len > strend - s) | |
831 | len = strend - s; | |
832 | if (checksum) | |
833 | goto uchar_checksum; | |
834 | sv = NEWSV(35, len); | |
835 | sv_setpvn(sv, s, len); | |
49704364 | 836 | if (len > 0 && (datumtype == 'A' || datumtype == 'Z')) { |
a6ec74c1 JH |
837 | aptr = s; /* borrow register */ |
838 | if (datumtype == 'Z') { /* 'Z' strips stuff after first null */ | |
839 | s = SvPVX(sv); | |
840 | while (*s) | |
841 | s++; | |
49704364 | 842 | if (howlen == e_star) /* exact for 'Z*' */ |
d50dd4e4 | 843 | len = s - SvPVX(sv) + 1; |
a6ec74c1 JH |
844 | } |
845 | else { /* 'A' strips both nulls and spaces */ | |
846 | s = SvPVX(sv) + len - 1; | |
847 | while (s >= SvPVX(sv) && (!*s || isSPACE(*s))) | |
848 | s--; | |
849 | *++s = '\0'; | |
850 | } | |
851 | SvCUR_set(sv, s - SvPVX(sv)); | |
852 | s = aptr; /* unborrow register */ | |
853 | } | |
d50dd4e4 | 854 | s += len; |
a6ec74c1 JH |
855 | XPUSHs(sv_2mortal(sv)); |
856 | break; | |
857 | case 'B': | |
858 | case 'b': | |
49704364 | 859 | if (howlen == e_star || len > (strend - s) * 8) |
a6ec74c1 JH |
860 | len = (strend - s) * 8; |
861 | if (checksum) { | |
862 | if (!PL_bitcount) { | |
863 | Newz(601, PL_bitcount, 256, char); | |
864 | for (bits = 1; bits < 256; bits++) { | |
865 | if (bits & 1) PL_bitcount[bits]++; | |
866 | if (bits & 2) PL_bitcount[bits]++; | |
867 | if (bits & 4) PL_bitcount[bits]++; | |
868 | if (bits & 8) PL_bitcount[bits]++; | |
869 | if (bits & 16) PL_bitcount[bits]++; | |
870 | if (bits & 32) PL_bitcount[bits]++; | |
871 | if (bits & 64) PL_bitcount[bits]++; | |
872 | if (bits & 128) PL_bitcount[bits]++; | |
873 | } | |
874 | } | |
875 | while (len >= 8) { | |
92d41999 | 876 | cuv += PL_bitcount[*(unsigned char*)s++]; |
a6ec74c1 JH |
877 | len -= 8; |
878 | } | |
879 | if (len) { | |
880 | bits = *s; | |
881 | if (datumtype == 'b') { | |
882 | while (len-- > 0) { | |
92d41999 | 883 | if (bits & 1) cuv++; |
a6ec74c1 JH |
884 | bits >>= 1; |
885 | } | |
886 | } | |
887 | else { | |
888 | while (len-- > 0) { | |
92d41999 | 889 | if (bits & 128) cuv++; |
a6ec74c1 JH |
890 | bits <<= 1; |
891 | } | |
892 | } | |
893 | } | |
894 | break; | |
895 | } | |
896 | sv = NEWSV(35, len + 1); | |
897 | SvCUR_set(sv, len); | |
898 | SvPOK_on(sv); | |
899 | str = SvPVX(sv); | |
900 | if (datumtype == 'b') { | |
901 | aint = len; | |
902 | for (len = 0; len < aint; len++) { | |
903 | if (len & 7) /*SUPPRESS 595*/ | |
904 | bits >>= 1; | |
905 | else | |
906 | bits = *s++; | |
907 | *str++ = '0' + (bits & 1); | |
908 | } | |
909 | } | |
910 | else { | |
911 | aint = len; | |
912 | for (len = 0; len < aint; len++) { | |
913 | if (len & 7) | |
914 | bits <<= 1; | |
915 | else | |
916 | bits = *s++; | |
917 | *str++ = '0' + ((bits & 128) != 0); | |
918 | } | |
919 | } | |
920 | *str = '\0'; | |
921 | XPUSHs(sv_2mortal(sv)); | |
922 | break; | |
923 | case 'H': | |
924 | case 'h': | |
49704364 | 925 | if (howlen == e_star || len > (strend - s) * 2) |
a6ec74c1 JH |
926 | len = (strend - s) * 2; |
927 | sv = NEWSV(35, len + 1); | |
928 | SvCUR_set(sv, len); | |
929 | SvPOK_on(sv); | |
930 | str = SvPVX(sv); | |
931 | if (datumtype == 'h') { | |
932 | aint = len; | |
933 | for (len = 0; len < aint; len++) { | |
934 | if (len & 1) | |
935 | bits >>= 4; | |
936 | else | |
937 | bits = *s++; | |
938 | *str++ = PL_hexdigit[bits & 15]; | |
939 | } | |
940 | } | |
941 | else { | |
942 | aint = len; | |
943 | for (len = 0; len < aint; len++) { | |
944 | if (len & 1) | |
945 | bits <<= 4; | |
946 | else | |
947 | bits = *s++; | |
948 | *str++ = PL_hexdigit[(bits >> 4) & 15]; | |
949 | } | |
950 | } | |
951 | *str = '\0'; | |
952 | XPUSHs(sv_2mortal(sv)); | |
953 | break; | |
954 | case 'c': | |
955 | if (len > strend - s) | |
956 | len = strend - s; | |
957 | if (checksum) { | |
958 | while (len-- > 0) { | |
959 | aint = *s++; | |
960 | if (aint >= 128) /* fake up signed chars */ | |
961 | aint -= 256; | |
fa8ec7c1 NC |
962 | if (checksum > bits_in_uv) |
963 | cdouble += (NV)aint; | |
964 | else | |
92d41999 | 965 | cuv += aint; |
a6ec74c1 JH |
966 | } |
967 | } | |
968 | else { | |
49704364 | 969 | if (len && unpack_only_one) |
c8f824eb | 970 | len = 1; |
a6ec74c1 JH |
971 | EXTEND(SP, len); |
972 | EXTEND_MORTAL(len); | |
973 | while (len-- > 0) { | |
974 | aint = *s++; | |
975 | if (aint >= 128) /* fake up signed chars */ | |
976 | aint -= 256; | |
977 | sv = NEWSV(36, 0); | |
978 | sv_setiv(sv, (IV)aint); | |
979 | PUSHs(sv_2mortal(sv)); | |
980 | } | |
981 | } | |
982 | break; | |
983 | case 'C': | |
35bcd338 JH |
984 | unpack_C: /* unpack U will jump here if not UTF-8 */ |
985 | if (len == 0) { | |
49704364 | 986 | symptr->flags &= ~FLAG_UNPACK_DO_UTF8; |
35bcd338 JH |
987 | break; |
988 | } | |
a6ec74c1 JH |
989 | if (len > strend - s) |
990 | len = strend - s; | |
991 | if (checksum) { | |
992 | uchar_checksum: | |
993 | while (len-- > 0) { | |
994 | auint = *s++ & 255; | |
92d41999 | 995 | cuv += auint; |
a6ec74c1 JH |
996 | } |
997 | } | |
998 | else { | |
49704364 | 999 | if (len && unpack_only_one) |
c8f824eb | 1000 | len = 1; |
a6ec74c1 JH |
1001 | EXTEND(SP, len); |
1002 | EXTEND_MORTAL(len); | |
1003 | while (len-- > 0) { | |
1004 | auint = *s++ & 255; | |
1005 | sv = NEWSV(37, 0); | |
1006 | sv_setiv(sv, (IV)auint); | |
1007 | PUSHs(sv_2mortal(sv)); | |
1008 | } | |
1009 | } | |
1010 | break; | |
1011 | case 'U': | |
35bcd338 | 1012 | if (len == 0) { |
49704364 | 1013 | symptr->flags |= FLAG_UNPACK_DO_UTF8; |
35bcd338 JH |
1014 | break; |
1015 | } | |
49704364 | 1016 | if ((symptr->flags & FLAG_UNPACK_DO_UTF8) == 0) |
35bcd338 | 1017 | goto unpack_C; |
a6ec74c1 JH |
1018 | if (len > strend - s) |
1019 | len = strend - s; | |
1020 | if (checksum) { | |
1021 | while (len-- > 0 && s < strend) { | |
1022 | STRLEN alen; | |
872c91ae | 1023 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV)); |
a6ec74c1 JH |
1024 | along = alen; |
1025 | s += along; | |
fa8ec7c1 | 1026 | if (checksum > bits_in_uv) |
a6ec74c1 JH |
1027 | cdouble += (NV)auint; |
1028 | else | |
92d41999 | 1029 | cuv += auint; |
a6ec74c1 JH |
1030 | } |
1031 | } | |
1032 | else { | |
49704364 | 1033 | if (len && unpack_only_one) |
c8f824eb | 1034 | len = 1; |
a6ec74c1 JH |
1035 | EXTEND(SP, len); |
1036 | EXTEND_MORTAL(len); | |
1037 | while (len-- > 0 && s < strend) { | |
1038 | STRLEN alen; | |
872c91ae | 1039 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV)); |
a6ec74c1 JH |
1040 | along = alen; |
1041 | s += along; | |
1042 | sv = NEWSV(37, 0); | |
1043 | sv_setuv(sv, (UV)auint); | |
1044 | PUSHs(sv_2mortal(sv)); | |
1045 | } | |
1046 | } | |
1047 | break; | |
49704364 WL |
1048 | case 's' | TYPE_IS_SHRIEKING: |
1049 | #if SHORTSIZE != SIZE16 | |
1050 | along = (strend - s) / sizeof(short); | |
a6ec74c1 JH |
1051 | if (len > along) |
1052 | len = along; | |
1053 | if (checksum) { | |
49704364 | 1054 | while (len-- > 0) { |
1109a392 MHM |
1055 | COPYNN(s, &ashort, sizeof(short)); |
1056 | DO_BO_UNPACK(ashort, s); | |
1057 | s += sizeof(short); | |
1058 | if (checksum > bits_in_uv) | |
1059 | cdouble += (NV)ashort; | |
1060 | else | |
1061 | cuv += ashort; | |
a6ec74c1 | 1062 | } |
49704364 WL |
1063 | } |
1064 | else { | |
1065 | if (len && unpack_only_one) | |
1066 | len = 1; | |
1067 | EXTEND(SP, len); | |
1068 | EXTEND_MORTAL(len); | |
49704364 WL |
1069 | while (len-- > 0) { |
1070 | COPYNN(s, &ashort, sizeof(short)); | |
1109a392 | 1071 | DO_BO_UNPACK(ashort, s); |
49704364 WL |
1072 | s += sizeof(short); |
1073 | sv = NEWSV(38, 0); | |
1074 | sv_setiv(sv, (IV)ashort); | |
1075 | PUSHs(sv_2mortal(sv)); | |
1076 | } | |
1077 | } | |
1078 | break; | |
1079 | #else | |
1080 | /* Fallthrough! */ | |
a6ec74c1 | 1081 | #endif |
49704364 WL |
1082 | case 's': |
1083 | along = (strend - s) / SIZE16; | |
1084 | if (len > along) | |
1085 | len = along; | |
1086 | if (checksum) { | |
1087 | while (len-- > 0) { | |
ef108786 MHM |
1088 | COPY16(s, &ai16); |
1089 | DO_BO_UNPACK(ai16, 16); | |
1109a392 | 1090 | #if U16SIZE > SIZE16 |
ef108786 MHM |
1091 | if (ai16 > 32767) |
1092 | ai16 -= 65536; | |
a6ec74c1 | 1093 | #endif |
49704364 WL |
1094 | s += SIZE16; |
1095 | if (checksum > bits_in_uv) | |
ef108786 | 1096 | cdouble += (NV)ai16; |
49704364 | 1097 | else |
ef108786 | 1098 | cuv += ai16; |
a6ec74c1 JH |
1099 | } |
1100 | } | |
1101 | else { | |
49704364 | 1102 | if (len && unpack_only_one) |
c8f824eb | 1103 | len = 1; |
a6ec74c1 JH |
1104 | EXTEND(SP, len); |
1105 | EXTEND_MORTAL(len); | |
49704364 WL |
1106 | |
1107 | while (len-- > 0) { | |
ef108786 MHM |
1108 | COPY16(s, &ai16); |
1109 | DO_BO_UNPACK(ai16, 16); | |
1109a392 | 1110 | #if U16SIZE > SIZE16 |
ef108786 MHM |
1111 | if (ai16 > 32767) |
1112 | ai16 -= 65536; | |
a6ec74c1 | 1113 | #endif |
49704364 WL |
1114 | s += SIZE16; |
1115 | sv = NEWSV(38, 0); | |
ef108786 | 1116 | sv_setiv(sv, (IV)ai16); |
49704364 | 1117 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 JH |
1118 | } |
1119 | } | |
1120 | break; | |
49704364 WL |
1121 | case 'S' | TYPE_IS_SHRIEKING: |
1122 | #if SHORTSIZE != SIZE16 | |
7accc089 | 1123 | along = (strend - s) / sizeof(unsigned short); |
49704364 WL |
1124 | if (len > along) |
1125 | len = along; | |
1126 | if (checksum) { | |
49704364 WL |
1127 | while (len-- > 0) { |
1128 | COPYNN(s, &aushort, sizeof(unsigned short)); | |
1109a392 | 1129 | DO_BO_UNPACK(aushort, s); |
49704364 WL |
1130 | s += sizeof(unsigned short); |
1131 | if (checksum > bits_in_uv) | |
1132 | cdouble += (NV)aushort; | |
1133 | else | |
1134 | cuv += aushort; | |
1135 | } | |
1136 | } | |
1137 | else { | |
1138 | if (len && unpack_only_one) | |
1139 | len = 1; | |
1140 | EXTEND(SP, len); | |
1141 | EXTEND_MORTAL(len); | |
1142 | while (len-- > 0) { | |
49704364 | 1143 | COPYNN(s, &aushort, sizeof(unsigned short)); |
1109a392 | 1144 | DO_BO_UNPACK(aushort, s); |
49704364 WL |
1145 | s += sizeof(unsigned short); |
1146 | sv = NEWSV(39, 0); | |
1147 | sv_setiv(sv, (UV)aushort); | |
1148 | PUSHs(sv_2mortal(sv)); | |
1149 | } | |
1150 | } | |
1151 | break; | |
1152 | #else | |
1153 | /* Fallhrough! */ | |
1154 | #endif | |
a6ec74c1 JH |
1155 | case 'v': |
1156 | case 'n': | |
1157 | case 'S': | |
a6ec74c1 | 1158 | along = (strend - s) / SIZE16; |
a6ec74c1 JH |
1159 | if (len > along) |
1160 | len = along; | |
1161 | if (checksum) { | |
49704364 | 1162 | while (len-- > 0) { |
ef108786 MHM |
1163 | COPY16(s, &au16); |
1164 | DO_BO_UNPACK(au16, 16); | |
49704364 | 1165 | s += SIZE16; |
a6ec74c1 | 1166 | #ifdef HAS_NTOHS |
49704364 | 1167 | if (datumtype == 'n') |
ef108786 | 1168 | au16 = PerlSock_ntohs(au16); |
a6ec74c1 JH |
1169 | #endif |
1170 | #ifdef HAS_VTOHS | |
49704364 | 1171 | if (datumtype == 'v') |
ef108786 | 1172 | au16 = vtohs(au16); |
a6ec74c1 | 1173 | #endif |
49704364 | 1174 | if (checksum > bits_in_uv) |
ef108786 | 1175 | cdouble += (NV)au16; |
49704364 | 1176 | else |
ef108786 | 1177 | cuv += au16; |
a6ec74c1 JH |
1178 | } |
1179 | } | |
1180 | else { | |
49704364 | 1181 | if (len && unpack_only_one) |
c8f824eb | 1182 | len = 1; |
a6ec74c1 JH |
1183 | EXTEND(SP, len); |
1184 | EXTEND_MORTAL(len); | |
49704364 | 1185 | while (len-- > 0) { |
ef108786 MHM |
1186 | COPY16(s, &au16); |
1187 | DO_BO_UNPACK(au16, 16); | |
49704364 WL |
1188 | s += SIZE16; |
1189 | sv = NEWSV(39, 0); | |
a6ec74c1 | 1190 | #ifdef HAS_NTOHS |
49704364 | 1191 | if (datumtype == 'n') |
ef108786 | 1192 | au16 = PerlSock_ntohs(au16); |
a6ec74c1 JH |
1193 | #endif |
1194 | #ifdef HAS_VTOHS | |
49704364 | 1195 | if (datumtype == 'v') |
ef108786 | 1196 | au16 = vtohs(au16); |
a6ec74c1 | 1197 | #endif |
ef108786 | 1198 | sv_setiv(sv, (UV)au16); |
49704364 | 1199 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 JH |
1200 | } |
1201 | } | |
1202 | break; | |
068bd2e7 MHM |
1203 | case 'v' | TYPE_IS_SHRIEKING: |
1204 | case 'n' | TYPE_IS_SHRIEKING: | |
1205 | along = (strend - s) / SIZE16; | |
1206 | if (len > along) | |
1207 | len = along; | |
1208 | if (checksum) { | |
1209 | while (len-- > 0) { | |
ef108786 | 1210 | COPY16(s, &ai16); |
068bd2e7 MHM |
1211 | s += SIZE16; |
1212 | #ifdef HAS_NTOHS | |
1213 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1214 | ai16 = (I16)PerlSock_ntohs((U16)ai16); |
068bd2e7 MHM |
1215 | #endif |
1216 | #ifdef HAS_VTOHS | |
1217 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1218 | ai16 = (I16)vtohs((U16)ai16); |
068bd2e7 MHM |
1219 | #endif |
1220 | if (checksum > bits_in_uv) | |
ef108786 | 1221 | cdouble += (NV)ai16; |
068bd2e7 | 1222 | else |
ef108786 | 1223 | cuv += ai16; |
068bd2e7 MHM |
1224 | } |
1225 | } | |
1226 | else { | |
1227 | if (len && unpack_only_one) | |
1228 | len = 1; | |
1229 | EXTEND(SP, len); | |
1230 | EXTEND_MORTAL(len); | |
1231 | while (len-- > 0) { | |
ef108786 | 1232 | COPY16(s, &ai16); |
068bd2e7 MHM |
1233 | s += SIZE16; |
1234 | #ifdef HAS_NTOHS | |
1235 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1236 | ai16 = (I16)PerlSock_ntohs((U16)ai16); |
068bd2e7 MHM |
1237 | #endif |
1238 | #ifdef HAS_VTOHS | |
1239 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1240 | ai16 = (I16)vtohs((U16)ai16); |
068bd2e7 MHM |
1241 | #endif |
1242 | sv = NEWSV(39, 0); | |
ef108786 | 1243 | sv_setiv(sv, (IV)ai16); |
068bd2e7 MHM |
1244 | PUSHs(sv_2mortal(sv)); |
1245 | } | |
1246 | } | |
1247 | break; | |
a6ec74c1 | 1248 | case 'i': |
49704364 | 1249 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
1250 | along = (strend - s) / sizeof(int); |
1251 | if (len > along) | |
1252 | len = along; | |
1253 | if (checksum) { | |
1254 | while (len-- > 0) { | |
1255 | Copy(s, &aint, 1, int); | |
1109a392 | 1256 | DO_BO_UNPACK(aint, i); |
a6ec74c1 | 1257 | s += sizeof(int); |
fa8ec7c1 | 1258 | if (checksum > bits_in_uv) |
a6ec74c1 JH |
1259 | cdouble += (NV)aint; |
1260 | else | |
92d41999 | 1261 | cuv += aint; |
a6ec74c1 JH |
1262 | } |
1263 | } | |
1264 | else { | |
49704364 | 1265 | if (len && unpack_only_one) |
c8f824eb | 1266 | len = 1; |
a6ec74c1 JH |
1267 | EXTEND(SP, len); |
1268 | EXTEND_MORTAL(len); | |
1269 | while (len-- > 0) { | |
1270 | Copy(s, &aint, 1, int); | |
1109a392 | 1271 | DO_BO_UNPACK(aint, i); |
a6ec74c1 JH |
1272 | s += sizeof(int); |
1273 | sv = NEWSV(40, 0); | |
1274 | #ifdef __osf__ | |
1275 | /* Without the dummy below unpack("i", pack("i",-1)) | |
1276 | * return 0xFFffFFff instead of -1 for Digital Unix V4.0 | |
1277 | * cc with optimization turned on. | |
1278 | * | |
1279 | * The bug was detected in | |
1280 | * DEC C V5.8-009 on Digital UNIX V4.0 (Rev. 1091) (V4.0E) | |
1281 | * with optimization (-O4) turned on. | |
1282 | * DEC C V5.2-040 on Digital UNIX V4.0 (Rev. 564) (V4.0B) | |
1283 | * does not have this problem even with -O4. | |
1284 | * | |
1285 | * This bug was reported as DECC_BUGS 1431 | |
1286 | * and tracked internally as GEM_BUGS 7775. | |
1287 | * | |
1288 | * The bug is fixed in | |
1289 | * Tru64 UNIX V5.0: Compaq C V6.1-006 or later | |
1290 | * UNIX V4.0F support: DEC C V5.9-006 or later | |
1291 | * UNIX V4.0E support: DEC C V5.8-011 or later | |
1292 | * and also in DTK. | |
1293 | * | |
1294 | * See also few lines later for the same bug. | |
1295 | */ | |
1296 | (aint) ? | |
1297 | sv_setiv(sv, (IV)aint) : | |
1298 | #endif | |
1299 | sv_setiv(sv, (IV)aint); | |
1300 | PUSHs(sv_2mortal(sv)); | |
1301 | } | |
1302 | } | |
1303 | break; | |
1304 | case 'I': | |
49704364 | 1305 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
1306 | along = (strend - s) / sizeof(unsigned int); |
1307 | if (len > along) | |
1308 | len = along; | |
1309 | if (checksum) { | |
1310 | while (len-- > 0) { | |
1311 | Copy(s, &auint, 1, unsigned int); | |
1109a392 | 1312 | DO_BO_UNPACK(auint, i); |
a6ec74c1 | 1313 | s += sizeof(unsigned int); |
fa8ec7c1 | 1314 | if (checksum > bits_in_uv) |
a6ec74c1 JH |
1315 | cdouble += (NV)auint; |
1316 | else | |
92d41999 | 1317 | cuv += auint; |
a6ec74c1 JH |
1318 | } |
1319 | } | |
1320 | else { | |
49704364 | 1321 | if (len && unpack_only_one) |
c8f824eb | 1322 | len = 1; |
a6ec74c1 JH |
1323 | EXTEND(SP, len); |
1324 | EXTEND_MORTAL(len); | |
1325 | while (len-- > 0) { | |
1326 | Copy(s, &auint, 1, unsigned int); | |
1109a392 | 1327 | DO_BO_UNPACK(auint, i); |
a6ec74c1 JH |
1328 | s += sizeof(unsigned int); |
1329 | sv = NEWSV(41, 0); | |
1330 | #ifdef __osf__ | |
1331 | /* Without the dummy below unpack("I", pack("I",0xFFFFFFFF)) | |
1332 | * returns 1.84467440737096e+19 instead of 0xFFFFFFFF. | |
1333 | * See details few lines earlier. */ | |
1334 | (auint) ? | |
1335 | sv_setuv(sv, (UV)auint) : | |
1336 | #endif | |
1337 | sv_setuv(sv, (UV)auint); | |
1338 | PUSHs(sv_2mortal(sv)); | |
1339 | } | |
1340 | } | |
1341 | break; | |
92d41999 JH |
1342 | case 'j': |
1343 | along = (strend - s) / IVSIZE; | |
1344 | if (len > along) | |
1345 | len = along; | |
1346 | if (checksum) { | |
1347 | while (len-- > 0) { | |
1348 | Copy(s, &aiv, 1, IV); | |
1109a392 MHM |
1349 | #if IVSIZE == INTSIZE |
1350 | DO_BO_UNPACK(aiv, i); | |
1351 | #elif IVSIZE == LONGSIZE | |
1352 | DO_BO_UNPACK(aiv, l); | |
1353 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE | |
1354 | DO_BO_UNPACK(aiv, 64); | |
1355 | #endif | |
92d41999 JH |
1356 | s += IVSIZE; |
1357 | if (checksum > bits_in_uv) | |
1358 | cdouble += (NV)aiv; | |
1359 | else | |
1360 | cuv += aiv; | |
1361 | } | |
1362 | } | |
1363 | else { | |
49704364 | 1364 | if (len && unpack_only_one) |
c8f824eb | 1365 | len = 1; |
92d41999 JH |
1366 | EXTEND(SP, len); |
1367 | EXTEND_MORTAL(len); | |
1368 | while (len-- > 0) { | |
1369 | Copy(s, &aiv, 1, IV); | |
1109a392 MHM |
1370 | #if IVSIZE == INTSIZE |
1371 | DO_BO_UNPACK(aiv, i); | |
1372 | #elif IVSIZE == LONGSIZE | |
1373 | DO_BO_UNPACK(aiv, l); | |
1374 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE | |
1375 | DO_BO_UNPACK(aiv, 64); | |
1376 | #endif | |
92d41999 JH |
1377 | s += IVSIZE; |
1378 | sv = NEWSV(40, 0); | |
1379 | sv_setiv(sv, aiv); | |
1380 | PUSHs(sv_2mortal(sv)); | |
1381 | } | |
1382 | } | |
1383 | break; | |
1384 | case 'J': | |
1385 | along = (strend - s) / UVSIZE; | |
1386 | if (len > along) | |
1387 | len = along; | |
1388 | if (checksum) { | |
1389 | while (len-- > 0) { | |
1390 | Copy(s, &auv, 1, UV); | |
1109a392 MHM |
1391 | #if UVSIZE == INTSIZE |
1392 | DO_BO_UNPACK(auv, i); | |
1393 | #elif UVSIZE == LONGSIZE | |
1394 | DO_BO_UNPACK(auv, l); | |
1395 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE | |
1396 | DO_BO_UNPACK(auv, 64); | |
1397 | #endif | |
92d41999 JH |
1398 | s += UVSIZE; |
1399 | if (checksum > bits_in_uv) | |
1400 | cdouble += (NV)auv; | |
1401 | else | |
1402 | cuv += auv; | |
1403 | } | |
1404 | } | |
1405 | else { | |
49704364 | 1406 | if (len && unpack_only_one) |
c8f824eb | 1407 | len = 1; |
92d41999 JH |
1408 | EXTEND(SP, len); |
1409 | EXTEND_MORTAL(len); | |
1410 | while (len-- > 0) { | |
1411 | Copy(s, &auv, 1, UV); | |
1109a392 MHM |
1412 | #if UVSIZE == INTSIZE |
1413 | DO_BO_UNPACK(auv, i); | |
1414 | #elif UVSIZE == LONGSIZE | |
1415 | DO_BO_UNPACK(auv, l); | |
1416 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE | |
1417 | DO_BO_UNPACK(auv, 64); | |
1418 | #endif | |
92d41999 JH |
1419 | s += UVSIZE; |
1420 | sv = NEWSV(41, 0); | |
1421 | sv_setuv(sv, auv); | |
1422 | PUSHs(sv_2mortal(sv)); | |
1423 | } | |
1424 | } | |
1425 | break; | |
49704364 WL |
1426 | case 'l' | TYPE_IS_SHRIEKING: |
1427 | #if LONGSIZE != SIZE32 | |
1428 | along = (strend - s) / sizeof(long); | |
a6ec74c1 JH |
1429 | if (len > along) |
1430 | len = along; | |
1431 | if (checksum) { | |
49704364 WL |
1432 | while (len-- > 0) { |
1433 | COPYNN(s, &along, sizeof(long)); | |
1109a392 | 1434 | DO_BO_UNPACK(along, l); |
49704364 WL |
1435 | s += sizeof(long); |
1436 | if (checksum > bits_in_uv) | |
1437 | cdouble += (NV)along; | |
1438 | else | |
1439 | cuv += along; | |
a6ec74c1 | 1440 | } |
49704364 WL |
1441 | } |
1442 | else { | |
1443 | if (len && unpack_only_one) | |
1444 | len = 1; | |
1445 | EXTEND(SP, len); | |
1446 | EXTEND_MORTAL(len); | |
1447 | while (len-- > 0) { | |
1448 | COPYNN(s, &along, sizeof(long)); | |
1109a392 | 1449 | DO_BO_UNPACK(along, l); |
49704364 WL |
1450 | s += sizeof(long); |
1451 | sv = NEWSV(42, 0); | |
1452 | sv_setiv(sv, (IV)along); | |
1453 | PUSHs(sv_2mortal(sv)); | |
1454 | } | |
1455 | } | |
1456 | break; | |
1457 | #else | |
1458 | /* Fallthrough! */ | |
a6ec74c1 | 1459 | #endif |
49704364 WL |
1460 | case 'l': |
1461 | along = (strend - s) / SIZE32; | |
1462 | if (len > along) | |
1463 | len = along; | |
1464 | if (checksum) { | |
1465 | while (len-- > 0) { | |
25a9bd2a MHM |
1466 | COPY32(s, &ai32); |
1467 | DO_BO_UNPACK(ai32, 32); | |
1468 | #if U32SIZE > SIZE32 | |
1469 | if (ai32 > 2147483647) | |
1470 | ai32 -= 4294967296; | |
a6ec74c1 | 1471 | #endif |
49704364 WL |
1472 | s += SIZE32; |
1473 | if (checksum > bits_in_uv) | |
25a9bd2a | 1474 | cdouble += (NV)ai32; |
49704364 | 1475 | else |
25a9bd2a | 1476 | cuv += ai32; |
a6ec74c1 JH |
1477 | } |
1478 | } | |
1479 | else { | |
49704364 | 1480 | if (len && unpack_only_one) |
c8f824eb | 1481 | len = 1; |
a6ec74c1 JH |
1482 | EXTEND(SP, len); |
1483 | EXTEND_MORTAL(len); | |
49704364 | 1484 | while (len-- > 0) { |
25a9bd2a MHM |
1485 | COPY32(s, &ai32); |
1486 | DO_BO_UNPACK(ai32, 32); | |
1487 | #if U32SIZE > SIZE32 | |
1488 | if (ai32 > 2147483647) | |
1489 | ai32 -= 4294967296; | |
a6ec74c1 | 1490 | #endif |
49704364 WL |
1491 | s += SIZE32; |
1492 | sv = NEWSV(42, 0); | |
25a9bd2a | 1493 | sv_setiv(sv, (IV)ai32); |
49704364 | 1494 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 JH |
1495 | } |
1496 | } | |
1497 | break; | |
49704364 WL |
1498 | case 'L' | TYPE_IS_SHRIEKING: |
1499 | #if LONGSIZE != SIZE32 | |
1500 | along = (strend - s) / sizeof(unsigned long); | |
1501 | if (len > along) | |
1502 | len = along; | |
1503 | if (checksum) { | |
1504 | while (len-- > 0) { | |
49704364 | 1505 | COPYNN(s, &aulong, sizeof(unsigned long)); |
1109a392 | 1506 | DO_BO_UNPACK(aulong, l); |
49704364 WL |
1507 | s += sizeof(unsigned long); |
1508 | if (checksum > bits_in_uv) | |
1509 | cdouble += (NV)aulong; | |
1510 | else | |
1511 | cuv += aulong; | |
1512 | } | |
1513 | } | |
1514 | else { | |
1515 | if (len && unpack_only_one) | |
1516 | len = 1; | |
1517 | EXTEND(SP, len); | |
1518 | EXTEND_MORTAL(len); | |
1519 | while (len-- > 0) { | |
49704364 | 1520 | COPYNN(s, &aulong, sizeof(unsigned long)); |
1109a392 | 1521 | DO_BO_UNPACK(aulong, l); |
49704364 WL |
1522 | s += sizeof(unsigned long); |
1523 | sv = NEWSV(43, 0); | |
1524 | sv_setuv(sv, (UV)aulong); | |
1525 | PUSHs(sv_2mortal(sv)); | |
1526 | } | |
1527 | } | |
1528 | break; | |
1529 | #else | |
1530 | /* Fall through! */ | |
1531 | #endif | |
a6ec74c1 JH |
1532 | case 'V': |
1533 | case 'N': | |
1534 | case 'L': | |
a6ec74c1 | 1535 | along = (strend - s) / SIZE32; |
a6ec74c1 JH |
1536 | if (len > along) |
1537 | len = along; | |
1538 | if (checksum) { | |
49704364 | 1539 | while (len-- > 0) { |
ef108786 MHM |
1540 | COPY32(s, &au32); |
1541 | DO_BO_UNPACK(au32, 32); | |
49704364 | 1542 | s += SIZE32; |
a6ec74c1 | 1543 | #ifdef HAS_NTOHL |
49704364 | 1544 | if (datumtype == 'N') |
ef108786 | 1545 | au32 = PerlSock_ntohl(au32); |
a6ec74c1 JH |
1546 | #endif |
1547 | #ifdef HAS_VTOHL | |
49704364 | 1548 | if (datumtype == 'V') |
ef108786 | 1549 | au32 = vtohl(au32); |
a6ec74c1 | 1550 | #endif |
49704364 | 1551 | if (checksum > bits_in_uv) |
ef108786 | 1552 | cdouble += (NV)au32; |
49704364 | 1553 | else |
ef108786 | 1554 | cuv += au32; |
a6ec74c1 JH |
1555 | } |
1556 | } | |
1557 | else { | |
49704364 | 1558 | if (len && unpack_only_one) |
c8f824eb | 1559 | len = 1; |
a6ec74c1 JH |
1560 | EXTEND(SP, len); |
1561 | EXTEND_MORTAL(len); | |
49704364 | 1562 | while (len-- > 0) { |
ef108786 MHM |
1563 | COPY32(s, &au32); |
1564 | DO_BO_UNPACK(au32, 32); | |
49704364 | 1565 | s += SIZE32; |
a6ec74c1 | 1566 | #ifdef HAS_NTOHL |
49704364 | 1567 | if (datumtype == 'N') |
ef108786 | 1568 | au32 = PerlSock_ntohl(au32); |
a6ec74c1 JH |
1569 | #endif |
1570 | #ifdef HAS_VTOHL | |
49704364 | 1571 | if (datumtype == 'V') |
ef108786 | 1572 | au32 = vtohl(au32); |
a6ec74c1 | 1573 | #endif |
49704364 | 1574 | sv = NEWSV(43, 0); |
ef108786 | 1575 | sv_setuv(sv, (UV)au32); |
49704364 | 1576 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 JH |
1577 | } |
1578 | } | |
1579 | break; | |
068bd2e7 MHM |
1580 | case 'V' | TYPE_IS_SHRIEKING: |
1581 | case 'N' | TYPE_IS_SHRIEKING: | |
1582 | along = (strend - s) / SIZE32; | |
1583 | if (len > along) | |
1584 | len = along; | |
1585 | if (checksum) { | |
1586 | while (len-- > 0) { | |
ef108786 | 1587 | COPY32(s, &ai32); |
068bd2e7 MHM |
1588 | s += SIZE32; |
1589 | #ifdef HAS_NTOHL | |
1590 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1591 | ai32 = (I32)PerlSock_ntohl((U32)ai32); |
068bd2e7 MHM |
1592 | #endif |
1593 | #ifdef HAS_VTOHL | |
1594 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1595 | ai32 = (I32)vtohl((U32)ai32); |
068bd2e7 MHM |
1596 | #endif |
1597 | if (checksum > bits_in_uv) | |
ef108786 | 1598 | cdouble += (NV)ai32; |
068bd2e7 | 1599 | else |
ef108786 | 1600 | cuv += ai32; |
068bd2e7 MHM |
1601 | } |
1602 | } | |
1603 | else { | |
1604 | if (len && unpack_only_one) | |
1605 | len = 1; | |
1606 | EXTEND(SP, len); | |
1607 | EXTEND_MORTAL(len); | |
1608 | while (len-- > 0) { | |
ef108786 | 1609 | COPY32(s, &ai32); |
068bd2e7 MHM |
1610 | s += SIZE32; |
1611 | #ifdef HAS_NTOHL | |
1612 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1613 | ai32 = (I32)PerlSock_ntohl((U32)ai32); |
068bd2e7 MHM |
1614 | #endif |
1615 | #ifdef HAS_VTOHL | |
1616 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) | |
ef108786 | 1617 | ai32 = (I32)vtohl((U32)ai32); |
068bd2e7 MHM |
1618 | #endif |
1619 | sv = NEWSV(43, 0); | |
ef108786 | 1620 | sv_setiv(sv, (IV)ai32); |
068bd2e7 MHM |
1621 | PUSHs(sv_2mortal(sv)); |
1622 | } | |
1623 | } | |
1624 | break; | |
a6ec74c1 JH |
1625 | case 'p': |
1626 | along = (strend - s) / sizeof(char*); | |
1627 | if (len > along) | |
1628 | len = along; | |
1629 | EXTEND(SP, len); | |
1630 | EXTEND_MORTAL(len); | |
1631 | while (len-- > 0) { | |
1632 | if (sizeof(char*) > strend - s) | |
1633 | break; | |
1634 | else { | |
1635 | Copy(s, &aptr, 1, char*); | |
1109a392 | 1636 | DO_BO_UNPACK_P(aptr); |
a6ec74c1 JH |
1637 | s += sizeof(char*); |
1638 | } | |
1639 | sv = NEWSV(44, 0); | |
1640 | if (aptr) | |
1641 | sv_setpv(sv, aptr); | |
1642 | PUSHs(sv_2mortal(sv)); | |
1643 | } | |
1644 | break; | |
1645 | case 'w': | |
49704364 | 1646 | if (len && unpack_only_one) |
c8f824eb | 1647 | len = 1; |
a6ec74c1 JH |
1648 | EXTEND(SP, len); |
1649 | EXTEND_MORTAL(len); | |
1650 | { | |
1651 | UV auv = 0; | |
1652 | U32 bytes = 0; | |
1653 | ||
1654 | while ((len > 0) && (s < strend)) { | |
1655 | auv = (auv << 7) | (*s & 0x7f); | |
1656 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ | |
1657 | if ((U8)(*s++) < 0x80) { | |
1658 | bytes = 0; | |
1659 | sv = NEWSV(40, 0); | |
1660 | sv_setuv(sv, auv); | |
1661 | PUSHs(sv_2mortal(sv)); | |
1662 | len--; | |
1663 | auv = 0; | |
1664 | } | |
1665 | else if (++bytes >= sizeof(UV)) { /* promote to string */ | |
1666 | char *t; | |
1667 | STRLEN n_a; | |
1668 | ||
1669 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); | |
1670 | while (s < strend) { | |
eb160463 | 1671 | sv = mul128(sv, (U8)(*s & 0x7f)); |
a6ec74c1 JH |
1672 | if (!(*s++ & 0x80)) { |
1673 | bytes = 0; | |
1674 | break; | |
1675 | } | |
1676 | } | |
1677 | t = SvPV(sv, n_a); | |
1678 | while (*t == '0') | |
1679 | t++; | |
1680 | sv_chop(sv, t); | |
1681 | PUSHs(sv_2mortal(sv)); | |
1682 | len--; | |
1683 | auv = 0; | |
1684 | } | |
1685 | } | |
1686 | if ((s >= strend) && bytes) | |
49704364 | 1687 | Perl_croak(aTHX_ "Unterminated compressed integer in unpack"); |
a6ec74c1 JH |
1688 | } |
1689 | break; | |
1690 | case 'P': | |
49704364 WL |
1691 | if (symptr->howlen == e_star) |
1692 | Perl_croak(aTHX_ "'P' must have an explicit size in unpack"); | |
a6ec74c1 JH |
1693 | EXTEND(SP, 1); |
1694 | if (sizeof(char*) > strend - s) | |
1695 | break; | |
1696 | else { | |
1697 | Copy(s, &aptr, 1, char*); | |
1109a392 | 1698 | DO_BO_UNPACK_P(aptr); |
a6ec74c1 JH |
1699 | s += sizeof(char*); |
1700 | } | |
1701 | sv = NEWSV(44, 0); | |
1702 | if (aptr) | |
1703 | sv_setpvn(sv, aptr, len); | |
1704 | PUSHs(sv_2mortal(sv)); | |
1705 | break; | |
1706 | #ifdef HAS_QUAD | |
1707 | case 'q': | |
1708 | along = (strend - s) / sizeof(Quad_t); | |
1709 | if (len > along) | |
1710 | len = along; | |
fa8ec7c1 NC |
1711 | if (checksum) { |
1712 | while (len-- > 0) { | |
a6ec74c1 | 1713 | Copy(s, &aquad, 1, Quad_t); |
1109a392 | 1714 | DO_BO_UNPACK(aquad, 64); |
a6ec74c1 | 1715 | s += sizeof(Quad_t); |
fa8ec7c1 NC |
1716 | if (checksum > bits_in_uv) |
1717 | cdouble += (NV)aquad; | |
1718 | else | |
92d41999 | 1719 | cuv += aquad; |
a6ec74c1 | 1720 | } |
a6ec74c1 | 1721 | } |
fa8ec7c1 | 1722 | else { |
49704364 | 1723 | if (len && unpack_only_one) |
c8f824eb | 1724 | len = 1; |
fa8ec7c1 NC |
1725 | EXTEND(SP, len); |
1726 | EXTEND_MORTAL(len); | |
1727 | while (len-- > 0) { | |
1728 | if (s + sizeof(Quad_t) > strend) | |
1729 | aquad = 0; | |
1730 | else { | |
92d41999 | 1731 | Copy(s, &aquad, 1, Quad_t); |
1109a392 | 1732 | DO_BO_UNPACK(aquad, 64); |
92d41999 | 1733 | s += sizeof(Quad_t); |
fa8ec7c1 NC |
1734 | } |
1735 | sv = NEWSV(42, 0); | |
1736 | if (aquad >= IV_MIN && aquad <= IV_MAX) | |
92d41999 | 1737 | sv_setiv(sv, (IV)aquad); |
fa8ec7c1 NC |
1738 | else |
1739 | sv_setnv(sv, (NV)aquad); | |
1740 | PUSHs(sv_2mortal(sv)); | |
1741 | } | |
1742 | } | |
a6ec74c1 JH |
1743 | break; |
1744 | case 'Q': | |
206947d2 | 1745 | along = (strend - s) / sizeof(Uquad_t); |
a6ec74c1 JH |
1746 | if (len > along) |
1747 | len = along; | |
fa8ec7c1 NC |
1748 | if (checksum) { |
1749 | while (len-- > 0) { | |
a6ec74c1 | 1750 | Copy(s, &auquad, 1, Uquad_t); |
1109a392 | 1751 | DO_BO_UNPACK(auquad, 64); |
a6ec74c1 | 1752 | s += sizeof(Uquad_t); |
fa8ec7c1 NC |
1753 | if (checksum > bits_in_uv) |
1754 | cdouble += (NV)auquad; | |
1755 | else | |
92d41999 | 1756 | cuv += auquad; |
a6ec74c1 | 1757 | } |
a6ec74c1 | 1758 | } |
fa8ec7c1 | 1759 | else { |
49704364 | 1760 | if (len && unpack_only_one) |
c8f824eb | 1761 | len = 1; |
fa8ec7c1 NC |
1762 | EXTEND(SP, len); |
1763 | EXTEND_MORTAL(len); | |
1764 | while (len-- > 0) { | |
1765 | if (s + sizeof(Uquad_t) > strend) | |
1766 | auquad = 0; | |
1767 | else { | |
1768 | Copy(s, &auquad, 1, Uquad_t); | |
1109a392 | 1769 | DO_BO_UNPACK(auquad, 64); |
fa8ec7c1 NC |
1770 | s += sizeof(Uquad_t); |
1771 | } | |
1772 | sv = NEWSV(43, 0); | |
1773 | if (auquad <= UV_MAX) | |
1774 | sv_setuv(sv, (UV)auquad); | |
1775 | else | |
1776 | sv_setnv(sv, (NV)auquad); | |
1777 | PUSHs(sv_2mortal(sv)); | |
1778 | } | |
1779 | } | |
a6ec74c1 JH |
1780 | break; |
1781 | #endif | |
1782 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ | |
1783 | case 'f': | |
a6ec74c1 JH |
1784 | along = (strend - s) / sizeof(float); |
1785 | if (len > along) | |
1786 | len = along; | |
1787 | if (checksum) { | |
1788 | while (len-- > 0) { | |
1789 | Copy(s, &afloat, 1, float); | |
1109a392 | 1790 | DO_BO_UNPACK_N(afloat, float); |
a6ec74c1 JH |
1791 | s += sizeof(float); |
1792 | cdouble += afloat; | |
1793 | } | |
1794 | } | |
1795 | else { | |
49704364 | 1796 | if (len && unpack_only_one) |
c8f824eb | 1797 | len = 1; |
a6ec74c1 JH |
1798 | EXTEND(SP, len); |
1799 | EXTEND_MORTAL(len); | |
1800 | while (len-- > 0) { | |
1801 | Copy(s, &afloat, 1, float); | |
1109a392 | 1802 | DO_BO_UNPACK_N(afloat, float); |
a6ec74c1 JH |
1803 | s += sizeof(float); |
1804 | sv = NEWSV(47, 0); | |
1805 | sv_setnv(sv, (NV)afloat); | |
1806 | PUSHs(sv_2mortal(sv)); | |
1807 | } | |
1808 | } | |
1809 | break; | |
1810 | case 'd': | |
a6ec74c1 JH |
1811 | along = (strend - s) / sizeof(double); |
1812 | if (len > along) | |
1813 | len = along; | |
1814 | if (checksum) { | |
1815 | while (len-- > 0) { | |
1816 | Copy(s, &adouble, 1, double); | |
1109a392 | 1817 | DO_BO_UNPACK_N(adouble, double); |
a6ec74c1 JH |
1818 | s += sizeof(double); |
1819 | cdouble += adouble; | |
1820 | } | |
1821 | } | |
1822 | else { | |
49704364 | 1823 | if (len && unpack_only_one) |
c8f824eb | 1824 | len = 1; |
a6ec74c1 JH |
1825 | EXTEND(SP, len); |
1826 | EXTEND_MORTAL(len); | |
1827 | while (len-- > 0) { | |
1828 | Copy(s, &adouble, 1, double); | |
1109a392 | 1829 | DO_BO_UNPACK_N(adouble, double); |
a6ec74c1 JH |
1830 | s += sizeof(double); |
1831 | sv = NEWSV(48, 0); | |
1832 | sv_setnv(sv, (NV)adouble); | |
1833 | PUSHs(sv_2mortal(sv)); | |
1834 | } | |
1835 | } | |
1836 | break; | |
92d41999 JH |
1837 | case 'F': |
1838 | along = (strend - s) / NVSIZE; | |
1839 | if (len > along) | |
1840 | len = along; | |
1841 | if (checksum) { | |
1842 | while (len-- > 0) { | |
1843 | Copy(s, &anv, 1, NV); | |
1109a392 | 1844 | DO_BO_UNPACK_N(anv, NV); |
92d41999 JH |
1845 | s += NVSIZE; |
1846 | cdouble += anv; | |
1847 | } | |
1848 | } | |
1849 | else { | |
49704364 | 1850 | if (len && unpack_only_one) |
c8f824eb | 1851 | len = 1; |
92d41999 JH |
1852 | EXTEND(SP, len); |
1853 | EXTEND_MORTAL(len); | |
1854 | while (len-- > 0) { | |
1855 | Copy(s, &anv, 1, NV); | |
1109a392 | 1856 | DO_BO_UNPACK_N(anv, NV); |
92d41999 JH |
1857 | s += NVSIZE; |
1858 | sv = NEWSV(48, 0); | |
1859 | sv_setnv(sv, anv); | |
1860 | PUSHs(sv_2mortal(sv)); | |
1861 | } | |
1862 | } | |
1863 | break; | |
1864 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) | |
1865 | case 'D': | |
1866 | along = (strend - s) / LONG_DOUBLESIZE; | |
1867 | if (len > along) | |
1868 | len = along; | |
1869 | if (checksum) { | |
1870 | while (len-- > 0) { | |
1871 | Copy(s, &aldouble, 1, long double); | |
1109a392 | 1872 | DO_BO_UNPACK_N(aldouble, long double); |
92d41999 JH |
1873 | s += LONG_DOUBLESIZE; |
1874 | cdouble += aldouble; | |
1875 | } | |
1876 | } | |
1877 | else { | |
49704364 | 1878 | if (len && unpack_only_one) |
c8f824eb | 1879 | len = 1; |
92d41999 JH |
1880 | EXTEND(SP, len); |
1881 | EXTEND_MORTAL(len); | |
1882 | while (len-- > 0) { | |
1883 | Copy(s, &aldouble, 1, long double); | |
1109a392 | 1884 | DO_BO_UNPACK_N(aldouble, long double); |
92d41999 JH |
1885 | s += LONG_DOUBLESIZE; |
1886 | sv = NEWSV(48, 0); | |
1887 | sv_setnv(sv, (NV)aldouble); | |
1888 | PUSHs(sv_2mortal(sv)); | |
1889 | } | |
1890 | } | |
1891 | break; | |
1892 | #endif | |
a6ec74c1 JH |
1893 | case 'u': |
1894 | /* MKS: | |
1895 | * Initialise the decode mapping. By using a table driven | |
1896 | * algorithm, the code will be character-set independent | |
1897 | * (and just as fast as doing character arithmetic) | |
1898 | */ | |
1899 | if (PL_uudmap['M'] == 0) { | |
1900 | int i; | |
1901 | ||
1902 | for (i = 0; i < sizeof(PL_uuemap); i += 1) | |
1903 | PL_uudmap[(U8)PL_uuemap[i]] = i; | |
1904 | /* | |
1905 | * Because ' ' and '`' map to the same value, | |
1906 | * we need to decode them both the same. | |
1907 | */ | |
1908 | PL_uudmap[' '] = 0; | |
1909 | } | |
1910 | ||
1911 | along = (strend - s) * 3 / 4; | |
1912 | sv = NEWSV(42, along); | |
1913 | if (along) | |
1914 | SvPOK_on(sv); | |
1915 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { | |
1916 | I32 a, b, c, d; | |
1917 | char hunk[4]; | |
1918 | ||
1919 | hunk[3] = '\0'; | |
1920 | len = PL_uudmap[*(U8*)s++] & 077; | |
1921 | while (len > 0) { | |
1922 | if (s < strend && ISUUCHAR(*s)) | |
1923 | a = PL_uudmap[*(U8*)s++] & 077; | |
1924 | else | |
1925 | a = 0; | |
1926 | if (s < strend && ISUUCHAR(*s)) | |
1927 | b = PL_uudmap[*(U8*)s++] & 077; | |
1928 | else | |
1929 | b = 0; | |
1930 | if (s < strend && ISUUCHAR(*s)) | |
1931 | c = PL_uudmap[*(U8*)s++] & 077; | |
1932 | else | |
1933 | c = 0; | |
1934 | if (s < strend && ISUUCHAR(*s)) | |
1935 | d = PL_uudmap[*(U8*)s++] & 077; | |
1936 | else | |
1937 | d = 0; | |
eb160463 GS |
1938 | hunk[0] = (char)((a << 2) | (b >> 4)); |
1939 | hunk[1] = (char)((b << 4) | (c >> 2)); | |
1940 | hunk[2] = (char)((c << 6) | d); | |
a6ec74c1 JH |
1941 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
1942 | len -= 3; | |
1943 | } | |
1944 | if (*s == '\n') | |
1945 | s++; | |
92aa5668 JH |
1946 | else /* possible checksum byte */ |
1947 | if (s + 1 < strend && s[1] == '\n') | |
1948 | s += 2; | |
a6ec74c1 JH |
1949 | } |
1950 | XPUSHs(sv_2mortal(sv)); | |
1951 | break; | |
1952 | } | |
49704364 | 1953 | |
a6ec74c1 JH |
1954 | if (checksum) { |
1955 | sv = NEWSV(42, 0); | |
1109a392 | 1956 | if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) || |
92d41999 | 1957 | (checksum > bits_in_uv && |
1109a392 | 1958 | strchr("csSiIlLnNUvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) { |
a6ec74c1 JH |
1959 | NV trouble; |
1960 | ||
fa8ec7c1 | 1961 | adouble = (NV) (1 << (checksum & 15)); |
a6ec74c1 JH |
1962 | while (checksum >= 16) { |
1963 | checksum -= 16; | |
1964 | adouble *= 65536.0; | |
1965 | } | |
a6ec74c1 JH |
1966 | while (cdouble < 0.0) |
1967 | cdouble += adouble; | |
1968 | cdouble = Perl_modf(cdouble / adouble, &trouble) * adouble; | |
1969 | sv_setnv(sv, cdouble); | |
1970 | } | |
1971 | else { | |
fa8ec7c1 NC |
1972 | if (checksum < bits_in_uv) { |
1973 | UV mask = ((UV)1 << checksum) - 1; | |
92d41999 | 1974 | cuv &= mask; |
a6ec74c1 | 1975 | } |
92d41999 | 1976 | sv_setuv(sv, cuv); |
a6ec74c1 JH |
1977 | } |
1978 | XPUSHs(sv_2mortal(sv)); | |
1979 | checksum = 0; | |
1980 | } | |
49704364 WL |
1981 | |
1982 | if (symptr->flags & FLAG_SLASH){ | |
1983 | if (SP - PL_stack_base - start_sp_offset <= 0) | |
1984 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); | |
1985 | if( next_symbol(symptr) ){ | |
1986 | if( symptr->howlen == e_number ) | |
1987 | Perl_croak(aTHX_ "Count after length/code in unpack" ); | |
1988 | if( beyond ){ | |
1989 | /* ...end of char buffer then no decent length available */ | |
1990 | Perl_croak(aTHX_ "length/code after end of string in unpack" ); | |
1991 | } else { | |
1992 | /* take top of stack (hope it's numeric) */ | |
1993 | len = POPi; | |
1994 | if( len < 0 ) | |
1995 | Perl_croak(aTHX_ "Negative '/' count in unpack" ); | |
1996 | } | |
1997 | } else { | |
1998 | Perl_croak(aTHX_ "Code missing after '/' in unpack" ); | |
1999 | } | |
2000 | datumtype = symptr->code; | |
2001 | goto redo_switch; | |
2002 | } | |
a6ec74c1 | 2003 | } |
49704364 | 2004 | |
18529408 IZ |
2005 | if (new_s) |
2006 | *new_s = s; | |
2007 | PUTBACK; | |
2008 | return SP - PL_stack_base - start_sp_offset; | |
2009 | } | |
2010 | ||
2011 | PP(pp_unpack) | |
2012 | { | |
2013 | dSP; | |
bab9c0ac | 2014 | dPOPPOPssrl; |
18529408 IZ |
2015 | I32 gimme = GIMME_V; |
2016 | STRLEN llen; | |
2017 | STRLEN rlen; | |
2018 | register char *pat = SvPV(left, llen); | |
2019 | #ifdef PACKED_IS_OCTETS | |
2020 | /* Packed side is assumed to be octets - so force downgrade if it | |
2021 | has been UTF-8 encoded by accident | |
2022 | */ | |
2023 | register char *s = SvPVbyte(right, rlen); | |
2024 | #else | |
2025 | register char *s = SvPV(right, rlen); | |
2026 | #endif | |
2027 | char *strend = s + rlen; | |
2028 | register char *patend = pat + llen; | |
2029 | register I32 cnt; | |
2030 | ||
2031 | PUTBACK; | |
7accc089 | 2032 | cnt = unpackstring(pat, patend, s, strend, |
49704364 WL |
2033 | ((gimme == G_SCALAR) ? FLAG_UNPACK_ONLY_ONE : 0) |
2034 | | (DO_UTF8(right) ? FLAG_UNPACK_DO_UTF8 : 0)); | |
2035 | ||
18529408 IZ |
2036 | SPAGAIN; |
2037 | if ( !cnt && gimme == G_SCALAR ) | |
2038 | PUSHs(&PL_sv_undef); | |
a6ec74c1 JH |
2039 | RETURN; |
2040 | } | |
2041 | ||
2042 | STATIC void | |
2043 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) | |
2044 | { | |
2045 | char hunk[5]; | |
2046 | ||
2047 | *hunk = PL_uuemap[len]; | |
2048 | sv_catpvn(sv, hunk, 1); | |
2049 | hunk[4] = '\0'; | |
2050 | while (len > 2) { | |
2051 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; | |
2052 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; | |
2053 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; | |
2054 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; | |
2055 | sv_catpvn(sv, hunk, 4); | |
2056 | s += 3; | |
2057 | len -= 3; | |
2058 | } | |
2059 | if (len > 0) { | |
2060 | char r = (len > 1 ? s[1] : '\0'); | |
2061 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; | |
2062 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; | |
2063 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; | |
2064 | hunk[3] = PL_uuemap[0]; | |
2065 | sv_catpvn(sv, hunk, 4); | |
2066 | } | |
2067 | sv_catpvn(sv, "\n", 1); | |
2068 | } | |
2069 | ||
2070 | STATIC SV * | |
2071 | S_is_an_int(pTHX_ char *s, STRLEN l) | |
2072 | { | |
2073 | STRLEN n_a; | |
2074 | SV *result = newSVpvn(s, l); | |
2075 | char *result_c = SvPV(result, n_a); /* convenience */ | |
2076 | char *out = result_c; | |
2077 | bool skip = 1; | |
2078 | bool ignore = 0; | |
2079 | ||
2080 | while (*s) { | |
2081 | switch (*s) { | |
2082 | case ' ': | |
2083 | break; | |
2084 | case '+': | |
2085 | if (!skip) { | |
2086 | SvREFCNT_dec(result); | |
2087 | return (NULL); | |
2088 | } | |
2089 | break; | |
2090 | case '0': | |
2091 | case '1': | |
2092 | case '2': | |
2093 | case '3': | |
2094 | case '4': | |
2095 | case '5': | |
2096 | case '6': | |
2097 | case '7': | |
2098 | case '8': | |
2099 | case '9': | |
2100 | skip = 0; | |
2101 | if (!ignore) { | |
2102 | *(out++) = *s; | |
2103 | } | |
2104 | break; | |
2105 | case '.': | |
2106 | ignore = 1; | |
2107 | break; | |
2108 | default: | |
2109 | SvREFCNT_dec(result); | |
2110 | return (NULL); | |
2111 | } | |
2112 | s++; | |
2113 | } | |
2114 | *(out++) = '\0'; | |
2115 | SvCUR_set(result, out - result_c); | |
2116 | return (result); | |
2117 | } | |
2118 | ||
2119 | /* pnum must be '\0' terminated */ | |
2120 | STATIC int | |
2121 | S_div128(pTHX_ SV *pnum, bool *done) | |
2122 | { | |
2123 | STRLEN len; | |
2124 | char *s = SvPV(pnum, len); | |
2125 | int m = 0; | |
2126 | int r = 0; | |
2127 | char *t = s; | |
2128 | ||
2129 | *done = 1; | |
2130 | while (*t) { | |
2131 | int i; | |
2132 | ||
2133 | i = m * 10 + (*t - '0'); | |
2134 | m = i & 0x7F; | |
2135 | r = (i >> 7); /* r < 10 */ | |
2136 | if (r) { | |
2137 | *done = 0; | |
2138 | } | |
2139 | *(t++) = '0' + r; | |
2140 | } | |
2141 | *(t++) = '\0'; | |
2142 | SvCUR_set(pnum, (STRLEN) (t - s)); | |
2143 | return (m); | |
2144 | } | |
2145 | ||
49704364 | 2146 | |
a6ec74c1 | 2147 | |
18529408 IZ |
2148 | /* |
2149 | =for apidoc pack_cat | |
2150 | ||
7accc089 JH |
2151 | The engine implementing pack() Perl function. Note: parameters next_in_list and |
2152 | flags are not used. This call should not be used; use packlist instead. | |
18529408 IZ |
2153 | |
2154 | =cut */ | |
2155 | ||
49704364 | 2156 | |
18529408 IZ |
2157 | void |
2158 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) | |
a6ec74c1 | 2159 | { |
49704364 WL |
2160 | tempsym_t sym = { 0 }; |
2161 | sym.patptr = pat; | |
2162 | sym.patend = patend; | |
7accc089 JH |
2163 | sym.flags = FLAG_PACK; |
2164 | ||
2165 | (void)pack_rec( cat, &sym, beglist, endlist ); | |
2166 | } | |
2167 | ||
2168 | ||
2169 | /* | |
2170 | =for apidoc packlist | |
2171 | ||
2172 | The engine implementing pack() Perl function. | |
2173 | ||
2174 | =cut */ | |
2175 | ||
2176 | ||
2177 | void | |
2178 | Perl_packlist(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist ) | |
2179 | { | |
2180 | tempsym_t sym = { 0 }; | |
2181 | sym.patptr = pat; | |
2182 | sym.patend = patend; | |
2183 | sym.flags = FLAG_PACK; | |
49704364 WL |
2184 | |
2185 | (void)pack_rec( cat, &sym, beglist, endlist ); | |
2186 | } | |
2187 | ||
2188 | ||
2189 | STATIC | |
2190 | SV ** | |
2191 | S_pack_rec(pTHX_ SV *cat, register tempsym_t* symptr, register SV **beglist, SV **endlist ) | |
2192 | { | |
a6ec74c1 JH |
2193 | register I32 items; |
2194 | STRLEN fromlen; | |
49704364 | 2195 | register I32 len = 0; |
a6ec74c1 JH |
2196 | SV *fromstr; |
2197 | /*SUPPRESS 442*/ | |
2198 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; | |
2199 | static char *space10 = " "; | |
49704364 | 2200 | bool found; |
a6ec74c1 JH |
2201 | |
2202 | /* These must not be in registers: */ | |
2203 | char achar; | |
ef108786 MHM |
2204 | I16 ai16; |
2205 | U16 au16; | |
2206 | I32 ai32; | |
2207 | U32 au32; | |
a6ec74c1 JH |
2208 | #ifdef HAS_QUAD |
2209 | Quad_t aquad; | |
2210 | Uquad_t auquad; | |
2211 | #endif | |
ef108786 MHM |
2212 | #if SHORTSIZE != SIZE16 |
2213 | short ashort; | |
2214 | unsigned short aushort; | |
2215 | #endif | |
2216 | int aint; | |
2217 | unsigned int auint; | |
2218 | #if LONGSIZE != SIZE32 | |
2219 | long along; | |
2220 | unsigned long aulong; | |
2221 | #endif | |
a6ec74c1 JH |
2222 | char *aptr; |
2223 | float afloat; | |
2224 | double adouble; | |
ef108786 MHM |
2225 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
2226 | long double aldouble; | |
2227 | #endif | |
2228 | IV aiv; | |
2229 | UV auv; | |
2230 | NV anv; | |
2231 | ||
49704364 WL |
2232 | int strrelbeg = SvCUR(cat); |
2233 | tempsym_t lookahead; | |
a6ec74c1 | 2234 | |
18529408 | 2235 | items = endlist - beglist; |
49704364 WL |
2236 | found = next_symbol( symptr ); |
2237 | ||
18529408 | 2238 | #ifndef PACKED_IS_OCTETS |
49704364 | 2239 | if (symptr->level == 0 && found && symptr->code == 'U' ){ |
18529408 | 2240 | SvUTF8_on(cat); |
49704364 | 2241 | } |
18529408 | 2242 | #endif |
49704364 WL |
2243 | |
2244 | while (found) { | |
a6ec74c1 | 2245 | SV *lengthcode = Nullsv; |
18529408 | 2246 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
49704364 WL |
2247 | |
2248 | I32 datumtype = symptr->code; | |
2249 | howlen_t howlen; | |
2250 | ||
2251 | switch( howlen = symptr->howlen ){ | |
2252 | case e_no_len: | |
2253 | case e_number: | |
2254 | len = symptr->length; | |
2255 | break; | |
2256 | case e_star: | |
1109a392 | 2257 | len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? 0 : items; |
49704364 WL |
2258 | break; |
2259 | } | |
2260 | ||
2261 | /* Look ahead for next symbol. Do we have code/code? */ | |
2262 | lookahead = *symptr; | |
2263 | found = next_symbol(&lookahead); | |
2264 | if ( symptr->flags & FLAG_SLASH ) { | |
2265 | if (found){ | |
2266 | if ( 0 == strchr( "aAZ", lookahead.code ) || | |
2267 | e_star != lookahead.howlen ) | |
2268 | Perl_croak(aTHX_ "'/' must be followed by 'a*', 'A*' or 'Z*' in pack"); | |
2269 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 | |
18529408 | 2270 | ? *beglist : &PL_sv_no) |
49704364 WL |
2271 | + (lookahead.code == 'Z' ? 1 : 0))); |
2272 | } else { | |
2273 | Perl_croak(aTHX_ "Code missing after '/' in pack"); | |
2274 | } | |
a6ec74c1 | 2275 | } |
49704364 | 2276 | |
1109a392 | 2277 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 | 2278 | default: |
1109a392 | 2279 | Perl_croak(aTHX_ "Invalid type '%c' in pack", (int)TYPE_NO_MODIFIERS(datumtype)); |
a6ec74c1 | 2280 | case '%': |
49704364 | 2281 | Perl_croak(aTHX_ "'%%' may not be used in pack"); |
a6ec74c1 | 2282 | case '@': |
49704364 | 2283 | len += strrelbeg - SvCUR(cat); |
a6ec74c1 JH |
2284 | if (len > 0) |
2285 | goto grow; | |
2286 | len = -len; | |
2287 | if (len > 0) | |
2288 | goto shrink; | |
2289 | break; | |
18529408 IZ |
2290 | case '(': |
2291 | { | |
49704364 | 2292 | tempsym_t savsym = *symptr; |
66c611c5 MHM |
2293 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
2294 | symptr->flags |= group_modifiers; | |
49704364 WL |
2295 | symptr->patend = savsym.grpend; |
2296 | symptr->level++; | |
18529408 | 2297 | while (len--) { |
49704364 WL |
2298 | symptr->patptr = savsym.grpbeg; |
2299 | beglist = pack_rec(cat, symptr, beglist, endlist ); | |
2300 | if (savsym.howlen == e_star && beglist == endlist) | |
18529408 IZ |
2301 | break; /* No way to continue */ |
2302 | } | |
66c611c5 | 2303 | symptr->flags &= ~group_modifiers; |
49704364 WL |
2304 | lookahead.flags = symptr->flags; |
2305 | *symptr = savsym; | |
18529408 IZ |
2306 | break; |
2307 | } | |
62f95557 IZ |
2308 | case 'X' | TYPE_IS_SHRIEKING: |
2309 | if (!len) /* Avoid division by 0 */ | |
2310 | len = 1; | |
2311 | len = (SvCUR(cat)) % len; | |
2312 | /* FALL THROUGH */ | |
a6ec74c1 JH |
2313 | case 'X': |
2314 | shrink: | |
eb160463 | 2315 | if ((I32)SvCUR(cat) < len) |
49704364 | 2316 | Perl_croak(aTHX_ "'X' outside of string in pack"); |
a6ec74c1 JH |
2317 | SvCUR(cat) -= len; |
2318 | *SvEND(cat) = '\0'; | |
2319 | break; | |
62f95557 IZ |
2320 | case 'x' | TYPE_IS_SHRIEKING: |
2321 | if (!len) /* Avoid division by 0 */ | |
2322 | len = 1; | |
2323 | aint = (SvCUR(cat)) % len; | |
2324 | if (aint) /* Other portable ways? */ | |
2325 | len = len - aint; | |
2326 | else | |
2327 | len = 0; | |
2328 | /* FALL THROUGH */ | |
49704364 | 2329 | |
a6ec74c1 JH |
2330 | case 'x': |
2331 | grow: | |
2332 | while (len >= 10) { | |
2333 | sv_catpvn(cat, null10, 10); | |
2334 | len -= 10; | |
2335 | } | |
2336 | sv_catpvn(cat, null10, len); | |
2337 | break; | |
2338 | case 'A': | |
2339 | case 'Z': | |
2340 | case 'a': | |
2341 | fromstr = NEXTFROM; | |
2342 | aptr = SvPV(fromstr, fromlen); | |
49704364 | 2343 | if (howlen == e_star) { |
a6ec74c1 JH |
2344 | len = fromlen; |
2345 | if (datumtype == 'Z') | |
2346 | ++len; | |
2347 | } | |
eb160463 | 2348 | if ((I32)fromlen >= len) { |
a6ec74c1 JH |
2349 | sv_catpvn(cat, aptr, len); |
2350 | if (datumtype == 'Z') | |
2351 | *(SvEND(cat)-1) = '\0'; | |
2352 | } | |
2353 | else { | |
2354 | sv_catpvn(cat, aptr, fromlen); | |
2355 | len -= fromlen; | |
2356 | if (datumtype == 'A') { | |
2357 | while (len >= 10) { | |
2358 | sv_catpvn(cat, space10, 10); | |
2359 | len -= 10; | |
2360 | } | |
2361 | sv_catpvn(cat, space10, len); | |
2362 | } | |
2363 | else { | |
2364 | while (len >= 10) { | |
2365 | sv_catpvn(cat, null10, 10); | |
2366 | len -= 10; | |
2367 | } | |
2368 | sv_catpvn(cat, null10, len); | |
2369 | } | |
2370 | } | |
2371 | break; | |
2372 | case 'B': | |
2373 | case 'b': | |
2374 | { | |
2375 | register char *str; | |
2376 | I32 saveitems; | |
2377 | ||
2378 | fromstr = NEXTFROM; | |
2379 | saveitems = items; | |
2380 | str = SvPV(fromstr, fromlen); | |
49704364 | 2381 | if (howlen == e_star) |
a6ec74c1 JH |
2382 | len = fromlen; |
2383 | aint = SvCUR(cat); | |
2384 | SvCUR(cat) += (len+7)/8; | |
2385 | SvGROW(cat, SvCUR(cat) + 1); | |
2386 | aptr = SvPVX(cat) + aint; | |
eb160463 | 2387 | if (len > (I32)fromlen) |
a6ec74c1 JH |
2388 | len = fromlen; |
2389 | aint = len; | |
2390 | items = 0; | |
2391 | if (datumtype == 'B') { | |
2392 | for (len = 0; len++ < aint;) { | |
2393 | items |= *str++ & 1; | |
2394 | if (len & 7) | |
2395 | items <<= 1; | |
2396 | else { | |
2397 | *aptr++ = items & 0xff; | |
2398 | items = 0; | |
2399 | } | |
2400 | } | |
2401 | } | |
2402 | else { | |
2403 | for (len = 0; len++ < aint;) { | |
2404 | if (*str++ & 1) | |
2405 | items |= 128; | |
2406 | if (len & 7) | |
2407 | items >>= 1; | |
2408 | else { | |
2409 | *aptr++ = items & 0xff; | |
2410 | items = 0; | |
2411 | } | |
2412 | } | |
2413 | } | |
2414 | if (aint & 7) { | |
2415 | if (datumtype == 'B') | |
2416 | items <<= 7 - (aint & 7); | |
2417 | else | |
2418 | items >>= 7 - (aint & 7); | |
2419 | *aptr++ = items & 0xff; | |
2420 | } | |
2421 | str = SvPVX(cat) + SvCUR(cat); | |
2422 | while (aptr <= str) | |
2423 | *aptr++ = '\0'; | |
2424 | ||
2425 | items = saveitems; | |
2426 | } | |
2427 | break; | |
2428 | case 'H': | |
2429 | case 'h': | |
2430 | { | |
2431 | register char *str; | |
2432 | I32 saveitems; | |
2433 | ||
2434 | fromstr = NEXTFROM; | |
2435 | saveitems = items; | |
2436 | str = SvPV(fromstr, fromlen); | |
49704364 | 2437 | if (howlen == e_star) |
a6ec74c1 JH |
2438 | len = fromlen; |
2439 | aint = SvCUR(cat); | |
2440 | SvCUR(cat) += (len+1)/2; | |
2441 | SvGROW(cat, SvCUR(cat) + 1); | |
2442 | aptr = SvPVX(cat) + aint; | |
eb160463 | 2443 | if (len > (I32)fromlen) |
a6ec74c1 JH |
2444 | len = fromlen; |
2445 | aint = len; | |
2446 | items = 0; | |
2447 | if (datumtype == 'H') { | |
2448 | for (len = 0; len++ < aint;) { | |
2449 | if (isALPHA(*str)) | |
2450 | items |= ((*str++ & 15) + 9) & 15; | |
2451 | else | |
2452 | items |= *str++ & 15; | |
2453 | if (len & 1) | |
2454 | items <<= 4; | |
2455 | else { | |
2456 | *aptr++ = items & 0xff; | |
2457 | items = 0; | |
2458 | } | |
2459 | } | |
2460 | } | |
2461 | else { | |
2462 | for (len = 0; len++ < aint;) { | |
2463 | if (isALPHA(*str)) | |
2464 | items |= (((*str++ & 15) + 9) & 15) << 4; | |
2465 | else | |
2466 | items |= (*str++ & 15) << 4; | |
2467 | if (len & 1) | |
2468 | items >>= 4; | |
2469 | else { | |
2470 | *aptr++ = items & 0xff; | |
2471 | items = 0; | |
2472 | } | |
2473 | } | |
2474 | } | |
2475 | if (aint & 1) | |
2476 | *aptr++ = items & 0xff; | |
2477 | str = SvPVX(cat) + SvCUR(cat); | |
2478 | while (aptr <= str) | |
2479 | *aptr++ = '\0'; | |
2480 | ||
2481 | items = saveitems; | |
2482 | } | |
2483 | break; | |
2484 | case 'C': | |
2485 | case 'c': | |
2486 | while (len-- > 0) { | |
2487 | fromstr = NEXTFROM; | |
1109a392 | 2488 | switch (TYPE_NO_MODIFIERS(datumtype)) { |
a6ec74c1 JH |
2489 | case 'C': |
2490 | aint = SvIV(fromstr); | |
2491 | if ((aint < 0 || aint > 255) && | |
2492 | ckWARN(WARN_PACK)) | |
9014280d | 2493 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 | 2494 | "Character in 'C' format wrapped in pack"); |
a6ec74c1 JH |
2495 | achar = aint & 255; |
2496 | sv_catpvn(cat, &achar, sizeof(char)); | |
2497 | break; | |
2498 | case 'c': | |
2499 | aint = SvIV(fromstr); | |
2500 | if ((aint < -128 || aint > 127) && | |
2501 | ckWARN(WARN_PACK)) | |
9014280d | 2502 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 | 2503 | "Character in 'c' format wrapped in pack" ); |
a6ec74c1 JH |
2504 | achar = aint & 255; |
2505 | sv_catpvn(cat, &achar, sizeof(char)); | |
2506 | break; | |
2507 | } | |
2508 | } | |
2509 | break; | |
2510 | case 'U': | |
2511 | while (len-- > 0) { | |
2512 | fromstr = NEXTFROM; | |
e87322b2 | 2513 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
a6ec74c1 | 2514 | SvGROW(cat, SvCUR(cat) + UTF8_MAXLEN + 1); |
52ea3e69 JH |
2515 | SvCUR_set(cat, |
2516 | (char*)uvchr_to_utf8_flags((U8*)SvEND(cat), | |
2517 | auint, | |
2518 | ckWARN(WARN_UTF8) ? | |
2519 | 0 : UNICODE_ALLOW_ANY) | |
2520 | - SvPVX(cat)); | |
a6ec74c1 JH |
2521 | } |
2522 | *SvEND(cat) = '\0'; | |
2523 | break; | |
2524 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ | |
2525 | case 'f': | |
a6ec74c1 JH |
2526 | while (len-- > 0) { |
2527 | fromstr = NEXTFROM; | |
5cdb9e01 PG |
2528 | #ifdef __VOS__ |
2529 | /* VOS does not automatically map a floating-point overflow | |
2530 | during conversion from double to float into infinity, so we | |
2531 | do it by hand. This code should either be generalized for | |
2532 | any OS that needs it, or removed if and when VOS implements | |
2533 | posix-976 (suggestion to support mapping to infinity). | |
2534 | Paul.Green@stratus.com 02-04-02. */ | |
2535 | if (SvNV(fromstr) > FLT_MAX) | |
2536 | afloat = _float_constants[0]; /* single prec. inf. */ | |
2537 | else if (SvNV(fromstr) < -FLT_MAX) | |
2538 | afloat = _float_constants[0]; /* single prec. inf. */ | |
2539 | else afloat = (float)SvNV(fromstr); | |
2540 | #else | |
baf3cf9c CB |
2541 | # if defined(VMS) && !defined(__IEEE_FP) |
2542 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional | |
2543 | * on Alpha; fake it if we don't have them. | |
2544 | */ | |
2545 | if (SvNV(fromstr) > FLT_MAX) | |
2546 | afloat = FLT_MAX; | |
2547 | else if (SvNV(fromstr) < -FLT_MAX) | |
2548 | afloat = -FLT_MAX; | |
2549 | else afloat = (float)SvNV(fromstr); | |
2550 | # else | |
a6ec74c1 | 2551 | afloat = (float)SvNV(fromstr); |
baf3cf9c | 2552 | # endif |
5cdb9e01 | 2553 | #endif |
1109a392 | 2554 | DO_BO_PACK_N(afloat, float); |
a6ec74c1 JH |
2555 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
2556 | } | |
2557 | break; | |
2558 | case 'd': | |
a6ec74c1 JH |
2559 | while (len-- > 0) { |
2560 | fromstr = NEXTFROM; | |
5cdb9e01 PG |
2561 | #ifdef __VOS__ |
2562 | /* VOS does not automatically map a floating-point overflow | |
2563 | during conversion from long double to double into infinity, | |
2564 | so we do it by hand. This code should either be generalized | |
2565 | for any OS that needs it, or removed if and when VOS | |
2566 | implements posix-976 (suggestion to support mapping to | |
2567 | infinity). Paul.Green@stratus.com 02-04-02. */ | |
2568 | if (SvNV(fromstr) > DBL_MAX) | |
2569 | adouble = _double_constants[0]; /* double prec. inf. */ | |
2570 | else if (SvNV(fromstr) < -DBL_MAX) | |
2571 | adouble = _double_constants[0]; /* double prec. inf. */ | |
2572 | else adouble = (double)SvNV(fromstr); | |
2573 | #else | |
baf3cf9c CB |
2574 | # if defined(VMS) && !defined(__IEEE_FP) |
2575 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional | |
2576 | * on Alpha; fake it if we don't have them. | |
2577 | */ | |
2578 | if (SvNV(fromstr) > DBL_MAX) | |
2579 | adouble = DBL_MAX; | |
2580 | else if (SvNV(fromstr) < -DBL_MAX) | |
2581 | adouble = -DBL_MAX; | |
2582 | else adouble = (double)SvNV(fromstr); | |
2583 | # else | |
a6ec74c1 | 2584 | adouble = (double)SvNV(fromstr); |
baf3cf9c | 2585 | # endif |
5cdb9e01 | 2586 | #endif |
1109a392 | 2587 | DO_BO_PACK_N(adouble, double); |
a6ec74c1 JH |
2588 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
2589 | } | |
2590 | break; | |
92d41999 | 2591 | case 'F': |
1109a392 | 2592 | Zero(&anv, 1, NV); /* can be long double with unused bits */ |
92d41999 JH |
2593 | while (len-- > 0) { |
2594 | fromstr = NEXTFROM; | |
2595 | anv = SvNV(fromstr); | |
1109a392 | 2596 | DO_BO_PACK_N(anv, NV); |
92d41999 JH |
2597 | sv_catpvn(cat, (char *)&anv, NVSIZE); |
2598 | } | |
2599 | break; | |
2600 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) | |
2601 | case 'D': | |
1109a392 MHM |
2602 | /* long doubles can have unused bits, which may be nonzero */ |
2603 | Zero(&aldouble, 1, long double); | |
92d41999 JH |
2604 | while (len-- > 0) { |
2605 | fromstr = NEXTFROM; | |
2606 | aldouble = (long double)SvNV(fromstr); | |
1109a392 | 2607 | DO_BO_PACK_N(aldouble, long double); |
92d41999 JH |
2608 | sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE); |
2609 | } | |
2610 | break; | |
2611 | #endif | |
068bd2e7 | 2612 | case 'n' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
2613 | case 'n': |
2614 | while (len-- > 0) { | |
2615 | fromstr = NEXTFROM; | |
ef108786 | 2616 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 | 2617 | #ifdef HAS_HTONS |
ef108786 | 2618 | ai16 = PerlSock_htons(ai16); |
a6ec74c1 | 2619 | #endif |
ef108786 | 2620 | CAT16(cat, &ai16); |
a6ec74c1 JH |
2621 | } |
2622 | break; | |
068bd2e7 | 2623 | case 'v' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
2624 | case 'v': |
2625 | while (len-- > 0) { | |
2626 | fromstr = NEXTFROM; | |
ef108786 | 2627 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 | 2628 | #ifdef HAS_HTOVS |
ef108786 | 2629 | ai16 = htovs(ai16); |
a6ec74c1 | 2630 | #endif |
ef108786 | 2631 | CAT16(cat, &ai16); |
a6ec74c1 JH |
2632 | } |
2633 | break; | |
49704364 | 2634 | case 'S' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 2635 | #if SHORTSIZE != SIZE16 |
49704364 | 2636 | { |
a6ec74c1 JH |
2637 | while (len-- > 0) { |
2638 | fromstr = NEXTFROM; | |
2639 | aushort = SvUV(fromstr); | |
1109a392 | 2640 | DO_BO_PACK(aushort, s); |
a6ec74c1 JH |
2641 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
2642 | } | |
49704364 WL |
2643 | } |
2644 | break; | |
2645 | #else | |
2646 | /* Fall through! */ | |
a6ec74c1 | 2647 | #endif |
49704364 | 2648 | case 'S': |
a6ec74c1 | 2649 | { |
a6ec74c1 JH |
2650 | while (len-- > 0) { |
2651 | fromstr = NEXTFROM; | |
ef108786 MHM |
2652 | au16 = (U16)SvUV(fromstr); |
2653 | DO_BO_PACK(au16, 16); | |
2654 | CAT16(cat, &au16); | |
a6ec74c1 JH |
2655 | } |
2656 | ||
2657 | } | |
2658 | break; | |
49704364 | 2659 | case 's' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 2660 | #if SHORTSIZE != SIZE16 |
49704364 | 2661 | { |
a6ec74c1 JH |
2662 | while (len-- > 0) { |
2663 | fromstr = NEXTFROM; | |
2664 | ashort = SvIV(fromstr); | |
1109a392 | 2665 | DO_BO_PACK(ashort, s); |
a6ec74c1 JH |
2666 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
2667 | } | |
2668 | } | |
49704364 WL |
2669 | break; |
2670 | #else | |
2671 | /* Fall through! */ | |
a6ec74c1 | 2672 | #endif |
49704364 WL |
2673 | case 's': |
2674 | while (len-- > 0) { | |
2675 | fromstr = NEXTFROM; | |
ef108786 MHM |
2676 | ai16 = (I16)SvIV(fromstr); |
2677 | DO_BO_PACK(ai16, 16); | |
2678 | CAT16(cat, &ai16); | |
a6ec74c1 JH |
2679 | } |
2680 | break; | |
2681 | case 'I': | |
49704364 | 2682 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
2683 | while (len-- > 0) { |
2684 | fromstr = NEXTFROM; | |
2685 | auint = SvUV(fromstr); | |
1109a392 | 2686 | DO_BO_PACK(auint, i); |
a6ec74c1 JH |
2687 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
2688 | } | |
2689 | break; | |
92d41999 JH |
2690 | case 'j': |
2691 | while (len-- > 0) { | |
2692 | fromstr = NEXTFROM; | |
2693 | aiv = SvIV(fromstr); | |
1109a392 MHM |
2694 | #if IVSIZE == INTSIZE |
2695 | DO_BO_PACK(aiv, i); | |
2696 | #elif IVSIZE == LONGSIZE | |
2697 | DO_BO_PACK(aiv, l); | |
2698 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE | |
2699 | DO_BO_PACK(aiv, 64); | |
2700 | #endif | |
92d41999 JH |
2701 | sv_catpvn(cat, (char*)&aiv, IVSIZE); |
2702 | } | |
2703 | break; | |
2704 | case 'J': | |
2705 | while (len-- > 0) { | |
2706 | fromstr = NEXTFROM; | |
2707 | auv = SvUV(fromstr); | |
1109a392 MHM |
2708 | #if UVSIZE == INTSIZE |
2709 | DO_BO_PACK(auv, i); | |
2710 | #elif UVSIZE == LONGSIZE | |
2711 | DO_BO_PACK(auv, l); | |
2712 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE | |
2713 | DO_BO_PACK(auv, 64); | |
2714 | #endif | |
92d41999 JH |
2715 | sv_catpvn(cat, (char*)&auv, UVSIZE); |
2716 | } | |
2717 | break; | |
a6ec74c1 JH |
2718 | case 'w': |
2719 | while (len-- > 0) { | |
2720 | fromstr = NEXTFROM; | |
15e9f109 | 2721 | anv = SvNV(fromstr); |
a6ec74c1 | 2722 | |
15e9f109 | 2723 | if (anv < 0) |
49704364 | 2724 | Perl_croak(aTHX_ "Cannot compress negative numbers in pack"); |
a6ec74c1 | 2725 | |
196b62db NC |
2726 | /* 0xFFFFFFFFFFFFFFFF may cast to 18446744073709551616.0, |
2727 | which is == UV_MAX_P1. IOK is fine (instead of UV_only), as | |
2728 | any negative IVs will have already been got by the croak() | |
2729 | above. IOK is untrue for fractions, so we test them | |
2730 | against UV_MAX_P1. */ | |
15e9f109 | 2731 | if (SvIOK(fromstr) || anv < UV_MAX_P1) |
a6ec74c1 | 2732 | { |
7c1b502b | 2733 | char buf[(sizeof(UV)*8)/7+1]; |
a6ec74c1 | 2734 | char *in = buf + sizeof(buf); |
196b62db | 2735 | UV auv = SvUV(fromstr); |
a6ec74c1 JH |
2736 | |
2737 | do { | |
eb160463 | 2738 | *--in = (char)((auv & 0x7f) | 0x80); |
a6ec74c1 JH |
2739 | auv >>= 7; |
2740 | } while (auv); | |
2741 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ | |
2742 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); | |
2743 | } | |
2744 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ | |
2745 | char *from, *result, *in; | |
2746 | SV *norm; | |
2747 | STRLEN len; | |
2748 | bool done; | |
2749 | ||
2750 | /* Copy string and check for compliance */ | |
2751 | from = SvPV(fromstr, len); | |
2752 | if ((norm = is_an_int(from, len)) == NULL) | |
49704364 | 2753 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
a6ec74c1 JH |
2754 | |
2755 | New('w', result, len, char); | |
2756 | in = result + len; | |
2757 | done = FALSE; | |
2758 | while (!done) | |
2759 | *--in = div128(norm, &done) | 0x80; | |
2760 | result[len - 1] &= 0x7F; /* clear continue bit */ | |
2761 | sv_catpvn(cat, in, (result + len) - in); | |
2762 | Safefree(result); | |
2763 | SvREFCNT_dec(norm); /* free norm */ | |
2764 | } | |
2765 | else if (SvNOKp(fromstr)) { | |
0258719b NC |
2766 | /* 10**NV_MAX_10_EXP is the largest power of 10 |
2767 | so 10**(NV_MAX_10_EXP+1) is definately unrepresentable | |
2768 | given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x: | |
2769 | x = (NV_MAX_10_EXP+1) * log (10) / log (128) | |
2770 | And with that many bytes only Inf can overflow. | |
8f8d40ab PG |
2771 | Some C compilers are strict about integral constant |
2772 | expressions so we conservatively divide by a slightly | |
2773 | smaller integer instead of multiplying by the exact | |
2774 | floating-point value. | |
0258719b NC |
2775 | */ |
2776 | #ifdef NV_MAX_10_EXP | |
8f8d40ab PG |
2777 | /* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */ |
2778 | char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */ | |
0258719b | 2779 | #else |
8f8d40ab PG |
2780 | /* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */ |
2781 | char buf[1 + (int)((308 + 1) / 2)]; /* valid C */ | |
0258719b | 2782 | #endif |
a6ec74c1 JH |
2783 | char *in = buf + sizeof(buf); |
2784 | ||
15e9f109 | 2785 | anv = Perl_floor(anv); |
a6ec74c1 | 2786 | do { |
15e9f109 | 2787 | NV next = Perl_floor(anv / 128); |
a6ec74c1 | 2788 | if (in <= buf) /* this cannot happen ;-) */ |
49704364 | 2789 | Perl_croak(aTHX_ "Cannot compress integer in pack"); |
0258719b | 2790 | *--in = (unsigned char)(anv - (next * 128)) | 0x80; |
15e9f109 NC |
2791 | anv = next; |
2792 | } while (anv > 0); | |
a6ec74c1 JH |
2793 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2794 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); | |
2795 | } | |
735b914b JH |
2796 | else { |
2797 | char *from, *result, *in; | |
2798 | SV *norm; | |
2799 | STRLEN len; | |
2800 | bool done; | |
2801 | ||
2802 | /* Copy string and check for compliance */ | |
2803 | from = SvPV(fromstr, len); | |
2804 | if ((norm = is_an_int(from, len)) == NULL) | |
49704364 | 2805 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
735b914b JH |
2806 | |
2807 | New('w', result, len, char); | |
2808 | in = result + len; | |
2809 | done = FALSE; | |
2810 | while (!done) | |
2811 | *--in = div128(norm, &done) | 0x80; | |
2812 | result[len - 1] &= 0x7F; /* clear continue bit */ | |
2813 | sv_catpvn(cat, in, (result + len) - in); | |
2814 | Safefree(result); | |
2815 | SvREFCNT_dec(norm); /* free norm */ | |
2816 | } | |
a6ec74c1 JH |
2817 | } |
2818 | break; | |
2819 | case 'i': | |
49704364 | 2820 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
2821 | while (len-- > 0) { |
2822 | fromstr = NEXTFROM; | |
2823 | aint = SvIV(fromstr); | |
1109a392 | 2824 | DO_BO_PACK(aint, i); |
a6ec74c1 JH |
2825 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
2826 | } | |
2827 | break; | |
068bd2e7 | 2828 | case 'N' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
2829 | case 'N': |
2830 | while (len-- > 0) { | |
2831 | fromstr = NEXTFROM; | |
ef108786 | 2832 | au32 = SvUV(fromstr); |
a6ec74c1 | 2833 | #ifdef HAS_HTONL |
ef108786 | 2834 | au32 = PerlSock_htonl(au32); |
a6ec74c1 | 2835 | #endif |
ef108786 | 2836 | CAT32(cat, &au32); |
a6ec74c1 JH |
2837 | } |
2838 | break; | |
068bd2e7 | 2839 | case 'V' | TYPE_IS_SHRIEKING: |
a6ec74c1 JH |
2840 | case 'V': |
2841 | while (len-- > 0) { | |
2842 | fromstr = NEXTFROM; | |
ef108786 | 2843 | au32 = SvUV(fromstr); |
a6ec74c1 | 2844 | #ifdef HAS_HTOVL |
ef108786 | 2845 | au32 = htovl(au32); |
a6ec74c1 | 2846 | #endif |
ef108786 | 2847 | CAT32(cat, &au32); |
a6ec74c1 JH |
2848 | } |
2849 | break; | |
49704364 | 2850 | case 'L' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 2851 | #if LONGSIZE != SIZE32 |
49704364 | 2852 | { |
a6ec74c1 JH |
2853 | while (len-- > 0) { |
2854 | fromstr = NEXTFROM; | |
2855 | aulong = SvUV(fromstr); | |
1109a392 | 2856 | DO_BO_PACK(aulong, l); |
a6ec74c1 JH |
2857 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
2858 | } | |
2859 | } | |
49704364 WL |
2860 | break; |
2861 | #else | |
2862 | /* Fall though! */ | |
a6ec74c1 | 2863 | #endif |
49704364 | 2864 | case 'L': |
a6ec74c1 JH |
2865 | { |
2866 | while (len-- > 0) { | |
2867 | fromstr = NEXTFROM; | |
ef108786 MHM |
2868 | au32 = SvUV(fromstr); |
2869 | DO_BO_PACK(au32, 32); | |
2870 | CAT32(cat, &au32); | |
a6ec74c1 JH |
2871 | } |
2872 | } | |
2873 | break; | |
49704364 | 2874 | case 'l' | TYPE_IS_SHRIEKING: |
a6ec74c1 | 2875 | #if LONGSIZE != SIZE32 |
49704364 | 2876 | { |
a6ec74c1 JH |
2877 | while (len-- > 0) { |
2878 | fromstr = NEXTFROM; | |
2879 | along = SvIV(fromstr); | |
1109a392 | 2880 | DO_BO_PACK(along, l); |
a6ec74c1 JH |
2881 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
2882 | } | |
2883 | } | |
49704364 WL |
2884 | break; |
2885 | #else | |
2886 | /* Fall though! */ | |
a6ec74c1 | 2887 | #endif |
49704364 WL |
2888 | case 'l': |
2889 | while (len-- > 0) { | |
2890 | fromstr = NEXTFROM; | |
ef108786 MHM |
2891 | ai32 = SvIV(fromstr); |
2892 | DO_BO_PACK(ai32, 32); | |
2893 | CAT32(cat, &ai32); | |
a6ec74c1 JH |
2894 | } |
2895 | break; | |
2896 | #ifdef HAS_QUAD | |
2897 | case 'Q': | |
2898 | while (len-- > 0) { | |
2899 | fromstr = NEXTFROM; | |
2900 | auquad = (Uquad_t)SvUV(fromstr); | |
1109a392 | 2901 | DO_BO_PACK(auquad, 64); |
a6ec74c1 JH |
2902 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
2903 | } | |
2904 | break; | |
2905 | case 'q': | |
2906 | while (len-- > 0) { | |
2907 | fromstr = NEXTFROM; | |
2908 | aquad = (Quad_t)SvIV(fromstr); | |
1109a392 | 2909 | DO_BO_PACK(aquad, 64); |
a6ec74c1 JH |
2910 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
2911 | } | |
2912 | break; | |
2913 | #endif | |
2914 | case 'P': | |
2915 | len = 1; /* assume SV is correct length */ | |
49704364 | 2916 | /* Fall through! */ |
a6ec74c1 JH |
2917 | case 'p': |
2918 | while (len-- > 0) { | |
2919 | fromstr = NEXTFROM; | |
2920 | if (fromstr == &PL_sv_undef) | |
2921 | aptr = NULL; | |
2922 | else { | |
2923 | STRLEN n_a; | |
2924 | /* XXX better yet, could spirit away the string to | |
2925 | * a safe spot and hang on to it until the result | |
2926 | * of pack() (and all copies of the result) are | |
2927 | * gone. | |
2928 | */ | |
2929 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) | |
2930 | || (SvPADTMP(fromstr) | |
2931 | && !SvREADONLY(fromstr)))) | |
2932 | { | |
9014280d | 2933 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
a6ec74c1 JH |
2934 | "Attempt to pack pointer to temporary value"); |
2935 | } | |
2936 | if (SvPOK(fromstr) || SvNIOK(fromstr)) | |
2937 | aptr = SvPV(fromstr,n_a); | |
2938 | else | |
2939 | aptr = SvPV_force(fromstr,n_a); | |
2940 | } | |
1109a392 | 2941 | DO_BO_PACK_P(aptr); |
a6ec74c1 JH |
2942 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
2943 | } | |
2944 | break; | |
2945 | case 'u': | |
2946 | fromstr = NEXTFROM; | |
2947 | aptr = SvPV(fromstr, fromlen); | |
2948 | SvGROW(cat, fromlen * 4 / 3); | |
19c9db5e | 2949 | if (len <= 2) |
a6ec74c1 JH |
2950 | len = 45; |
2951 | else | |
2952 | len = len / 3 * 3; | |
2953 | while (fromlen > 0) { | |
2954 | I32 todo; | |
2955 | ||
eb160463 | 2956 | if ((I32)fromlen > len) |
a6ec74c1 JH |
2957 | todo = len; |
2958 | else | |
2959 | todo = fromlen; | |
2960 | doencodes(cat, aptr, todo); | |
2961 | fromlen -= todo; | |
2962 | aptr += todo; | |
2963 | } | |
2964 | break; | |
2965 | } | |
49704364 | 2966 | *symptr = lookahead; |
a6ec74c1 | 2967 | } |
49704364 | 2968 | return beglist; |
18529408 IZ |
2969 | } |
2970 | #undef NEXTFROM | |
2971 | ||
2972 | ||
2973 | PP(pp_pack) | |
2974 | { | |
2975 | dSP; dMARK; dORIGMARK; dTARGET; | |
2976 | register SV *cat = TARG; | |
2977 | STRLEN fromlen; | |
2978 | register char *pat = SvPVx(*++MARK, fromlen); | |
2979 | register char *patend = pat + fromlen; | |
2980 | ||
2981 | MARK++; | |
2982 | sv_setpvn(cat, "", 0); | |
2983 | ||
7accc089 | 2984 | packlist(cat, pat, patend, MARK, SP + 1); |
18529408 | 2985 | |
a6ec74c1 JH |
2986 | SvSETMAGIC(cat); |
2987 | SP = ORIGMARK; | |
2988 | PUSHs(cat); | |
2989 | RETURN; | |
2990 | } | |
a6ec74c1 | 2991 |