Commit | Line | Data |
a6ec74c1 |
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 |
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 |
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 | |
a6ec74c1 |
19 | #include "EXTERN.h" |
20 | #define PERL_IN_PP_PACK_C |
21 | #include "perl.h" |
22 | |
23 | /* |
24 | * The compiler on Concurrent CX/UX systems has a subtle bug which only |
25 | * seems to show up when compiling pp.c - it generates the wrong double |
26 | * precision constant value for (double)UV_MAX when used inline in the body |
27 | * of the code below, so this makes a static variable up front (which the |
28 | * compiler seems to get correct) and uses it in place of UV_MAX below. |
29 | */ |
30 | #ifdef CXUX_BROKEN_CONSTANT_CONVERT |
31 | static double UV_MAX_cxux = ((double)UV_MAX); |
32 | #endif |
33 | |
34 | /* |
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 |
58 | #if U16SIZE > SIZE16 || U32SIZE > SIZE32 |
59 | # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */ |
a6ec74c1 |
60 | # define OFF16(p) (char*)(p) |
61 | # define OFF32(p) (char*)(p) |
62 | # else |
1109a392 |
63 | # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */ |
a6ec74c1 |
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 |
83 | /* Avoid stack overflow due to pathological templates. 100 should be plenty. */ |
84 | #define MAX_SUB_TEMPLATE_LEVEL 100 |
85 | |
86 | /* flags */ |
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 |
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 |
114 | *(t--) = '0' + (char)(i % 10); |
115 | m = (char)(i / 10); |
a6ec74c1 |
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 | |
62f95557 |
133 | #define TYPE_IS_SHRIEKING 0x100 |
1109a392 |
134 | #define TYPE_IS_BIG_ENDIAN 0x200 |
135 | #define TYPE_IS_LITTLE_ENDIAN 0x400 |
136 | #define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN) |
137 | #define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK) |
138 | #define TYPE_NO_MODIFIERS(t) ((t) & 0xFF) |
139 | |
140 | #define DO_BO_UNPACK(var, type) \ |
141 | STMT_START { \ |
142 | switch (datumtype & TYPE_ENDIANNESS_MASK) { \ |
143 | case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \ |
144 | case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \ |
145 | default: break; \ |
146 | } \ |
147 | } STMT_END |
148 | |
149 | #define DO_BO_PACK(var, type) \ |
150 | STMT_START { \ |
151 | switch (datumtype & TYPE_ENDIANNESS_MASK) { \ |
152 | case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \ |
153 | case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \ |
154 | default: break; \ |
155 | } \ |
156 | } STMT_END |
157 | |
158 | #define DO_BO_UNPACK_PTR(var, type, pre_cast) \ |
159 | STMT_START { \ |
160 | switch (datumtype & TYPE_ENDIANNESS_MASK) { \ |
161 | case TYPE_IS_BIG_ENDIAN: \ |
162 | var = (void *) my_betoh ## type ((pre_cast) var); \ |
163 | break; \ |
164 | case TYPE_IS_LITTLE_ENDIAN: \ |
165 | var = (void *) my_letoh ## type ((pre_cast) var); \ |
166 | break; \ |
167 | default: \ |
168 | break; \ |
169 | } \ |
170 | } STMT_END |
171 | |
172 | #define DO_BO_PACK_PTR(var, type, pre_cast) \ |
173 | STMT_START { \ |
174 | switch (datumtype & TYPE_ENDIANNESS_MASK) { \ |
175 | case TYPE_IS_BIG_ENDIAN: \ |
176 | var = (void *) my_htobe ## type ((pre_cast) var); \ |
177 | break; \ |
178 | case TYPE_IS_LITTLE_ENDIAN: \ |
179 | var = (void *) my_htole ## type ((pre_cast) var); \ |
180 | break; \ |
181 | default: \ |
182 | break; \ |
183 | } \ |
184 | } STMT_END |
185 | |
186 | #define BO_CANT_DOIT(action, type) \ |
187 | STMT_START { \ |
188 | switch (datumtype & TYPE_ENDIANNESS_MASK) { \ |
189 | case TYPE_IS_BIG_ENDIAN: \ |
190 | Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \ |
191 | "platform", #action, #type); \ |
192 | break; \ |
193 | case TYPE_IS_LITTLE_ENDIAN: \ |
194 | Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \ |
195 | "platform", #action, #type); \ |
196 | break; \ |
197 | default: \ |
198 | break; \ |
199 | } \ |
200 | } STMT_END |
201 | |
202 | #if PTRSIZE == INTSIZE |
203 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int) |
204 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int) |
205 | #elif PTRSIZE == LONGSIZE |
206 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long) |
207 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long) |
208 | #else |
209 | # define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer) |
210 | # define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer) |
211 | #endif |
212 | |
213 | #if defined(my_htolen) && defined(my_letohn) && \ |
214 | defined(my_htoben) && defined(my_betohn) |
215 | # define DO_BO_UNPACK_N(var, type) \ |
216 | STMT_START { \ |
217 | switch (datumtype & TYPE_ENDIANNESS_MASK) { \ |
218 | case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\ |
219 | case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\ |
220 | default: break; \ |
221 | } \ |
222 | } STMT_END |
223 | |
224 | # define DO_BO_PACK_N(var, type) \ |
225 | STMT_START { \ |
226 | switch (datumtype & TYPE_ENDIANNESS_MASK) { \ |
227 | case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\ |
228 | case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\ |
229 | default: break; \ |
230 | } \ |
231 | } STMT_END |
232 | #else |
233 | # define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type) |
234 | # define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type) |
235 | #endif |
62f95557 |
236 | |
206947d2 |
237 | /* Returns the sizeof() struct described by pat */ |
028d1f6d |
238 | STATIC I32 |
49704364 |
239 | S_measure_struct(pTHX_ register tempsym_t* symptr) |
206947d2 |
240 | { |
49704364 |
241 | register I32 len = 0; |
206947d2 |
242 | register I32 total = 0; |
49704364 |
243 | int star; |
244 | |
206947d2 |
245 | register int size; |
246 | |
49704364 |
247 | while (next_symbol(symptr)) { |
206947d2 |
248 | |
49704364 |
249 | switch( symptr->howlen ){ |
250 | case e_no_len: |
251 | case e_number: |
252 | len = symptr->length; |
253 | break; |
254 | case e_star: |
255 | Perl_croak(aTHX_ "Within []-length '*' not allowed in %s", |
256 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
257 | break; |
258 | } |
259 | |
1109a392 |
260 | /* endianness doesn't influence the size of a type */ |
261 | switch(TYPE_NO_ENDIANNESS(symptr->code)) { |
206947d2 |
262 | default: |
1109a392 |
263 | Perl_croak(aTHX_ "Invalid type '%c' in %s", |
264 | (int)TYPE_NO_MODIFIERS(symptr->code), |
49704364 |
265 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
206947d2 |
266 | case '@': |
267 | case '/': |
268 | case 'U': /* XXXX Is it correct? */ |
269 | case 'w': |
270 | case 'u': |
49704364 |
271 | Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s", |
272 | (int)symptr->code, |
273 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
206947d2 |
274 | case '%': |
275 | size = 0; |
276 | break; |
277 | case '(': |
278 | { |
49704364 |
279 | tempsym_t savsym = *symptr; |
280 | symptr->patptr = savsym.grpbeg; |
281 | symptr->patend = savsym.grpend; |
62f95557 |
282 | /* XXXX Theoretically, we need to measure many times at different |
283 | positions, since the subexpression may contain |
284 | alignment commands, but be not of aligned length. |
285 | Need to detect this and croak(). */ |
49704364 |
286 | size = measure_struct(symptr); |
287 | *symptr = savsym; |
206947d2 |
288 | break; |
289 | } |
62f95557 |
290 | case 'X' | TYPE_IS_SHRIEKING: |
291 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. */ |
292 | if (!len) /* Avoid division by 0 */ |
293 | len = 1; |
294 | len = total % len; /* Assumed: the start is aligned. */ |
295 | /* FALL THROUGH */ |
206947d2 |
296 | case 'X': |
297 | size = -1; |
298 | if (total < len) |
49704364 |
299 | Perl_croak(aTHX_ "'X' outside of string in %s", |
300 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
206947d2 |
301 | break; |
62f95557 |
302 | case 'x' | TYPE_IS_SHRIEKING: |
303 | if (!len) /* Avoid division by 0 */ |
304 | len = 1; |
305 | star = total % len; /* Assumed: the start is aligned. */ |
306 | if (star) /* Other portable ways? */ |
307 | len = len - star; |
308 | else |
309 | len = 0; |
310 | /* FALL THROUGH */ |
206947d2 |
311 | case 'x': |
312 | case 'A': |
313 | case 'Z': |
314 | case 'a': |
315 | case 'c': |
316 | case 'C': |
317 | size = 1; |
318 | break; |
319 | case 'B': |
320 | case 'b': |
321 | len = (len + 7)/8; |
322 | size = 1; |
323 | break; |
324 | case 'H': |
325 | case 'h': |
326 | len = (len + 1)/2; |
327 | size = 1; |
328 | break; |
49704364 |
329 | case 's' | TYPE_IS_SHRIEKING: |
330 | #if SHORTSIZE != SIZE16 |
331 | size = sizeof(short); |
332 | break; |
333 | #else |
334 | /* FALL THROUGH */ |
335 | #endif |
206947d2 |
336 | case 's': |
206947d2 |
337 | size = SIZE16; |
49704364 |
338 | break; |
339 | case 'S' | TYPE_IS_SHRIEKING: |
340 | #if SHORTSIZE != SIZE16 |
341 | size = sizeof(unsigned short); |
342 | break; |
206947d2 |
343 | #else |
49704364 |
344 | /* FALL THROUGH */ |
206947d2 |
345 | #endif |
068bd2e7 |
346 | case 'v' | TYPE_IS_SHRIEKING: |
347 | case 'n' | TYPE_IS_SHRIEKING: |
206947d2 |
348 | case 'v': |
349 | case 'n': |
350 | case 'S': |
206947d2 |
351 | size = SIZE16; |
206947d2 |
352 | break; |
49704364 |
353 | case 'i' | TYPE_IS_SHRIEKING: |
206947d2 |
354 | case 'i': |
355 | size = sizeof(int); |
356 | break; |
49704364 |
357 | case 'I' | TYPE_IS_SHRIEKING: |
206947d2 |
358 | case 'I': |
359 | size = sizeof(unsigned int); |
360 | break; |
92d41999 |
361 | case 'j': |
362 | size = IVSIZE; |
363 | break; |
364 | case 'J': |
365 | size = UVSIZE; |
366 | break; |
49704364 |
367 | case 'l' | TYPE_IS_SHRIEKING: |
368 | #if LONGSIZE != SIZE32 |
369 | size = sizeof(long); |
370 | break; |
371 | #else |
372 | /* FALL THROUGH */ |
373 | #endif |
206947d2 |
374 | case 'l': |
206947d2 |
375 | size = SIZE32; |
49704364 |
376 | break; |
377 | case 'L' | TYPE_IS_SHRIEKING: |
378 | #if LONGSIZE != SIZE32 |
379 | size = sizeof(unsigned long); |
380 | break; |
206947d2 |
381 | #else |
49704364 |
382 | /* FALL THROUGH */ |
206947d2 |
383 | #endif |
068bd2e7 |
384 | case 'V' | TYPE_IS_SHRIEKING: |
385 | case 'N' | TYPE_IS_SHRIEKING: |
206947d2 |
386 | case 'V': |
387 | case 'N': |
388 | case 'L': |
206947d2 |
389 | size = SIZE32; |
206947d2 |
390 | break; |
391 | case 'P': |
392 | len = 1; |
393 | /* FALL THROUGH */ |
394 | case 'p': |
395 | size = sizeof(char*); |
396 | break; |
397 | #ifdef HAS_QUAD |
398 | case 'q': |
399 | size = sizeof(Quad_t); |
400 | break; |
401 | case 'Q': |
402 | size = sizeof(Uquad_t); |
403 | break; |
404 | #endif |
405 | case 'f': |
206947d2 |
406 | size = sizeof(float); |
407 | break; |
408 | case 'd': |
206947d2 |
409 | size = sizeof(double); |
410 | break; |
92d41999 |
411 | case 'F': |
412 | size = NVSIZE; |
413 | break; |
414 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
415 | case 'D': |
416 | size = LONG_DOUBLESIZE; |
417 | break; |
418 | #endif |
206947d2 |
419 | } |
420 | total += len * size; |
421 | } |
422 | return total; |
423 | } |
424 | |
49704364 |
425 | |
426 | /* locate matching closing parenthesis or bracket |
427 | * returns char pointer to char after match, or NULL |
428 | */ |
429 | STATIC char * |
430 | S_group_end(pTHX_ register char *patptr, register char *patend, char ender) |
18529408 |
431 | { |
49704364 |
432 | while (patptr < patend) { |
433 | char c = *patptr++; |
434 | |
435 | if (isSPACE(c)) |
436 | continue; |
437 | else if (c == ender) |
438 | return patptr-1; |
439 | else if (c == '#') { |
440 | while (patptr < patend && *patptr != '\n') |
441 | patptr++; |
442 | continue; |
443 | } else if (c == '(') |
444 | patptr = group_end(patptr, patend, ')') + 1; |
445 | else if (c == '[') |
446 | patptr = group_end(patptr, patend, ']') + 1; |
18529408 |
447 | } |
49704364 |
448 | Perl_croak(aTHX_ "No group ending character '%c' found in template", |
449 | ender); |
450 | return 0; |
18529408 |
451 | } |
452 | |
49704364 |
453 | |
454 | /* Convert unsigned decimal number to binary. |
455 | * Expects a pointer to the first digit and address of length variable |
456 | * Advances char pointer to 1st non-digit char and returns number |
457 | */ |
18529408 |
458 | STATIC char * |
49704364 |
459 | S_get_num(pTHX_ register char *patptr, I32 *lenptr ) |
460 | { |
461 | I32 len = *patptr++ - '0'; |
462 | while (isDIGIT(*patptr)) { |
463 | if (len >= 0x7FFFFFFF/10) |
464 | Perl_croak(aTHX_ "pack/unpack repeat count overflow"); |
465 | len = (len * 10) + (*patptr++ - '0'); |
466 | } |
467 | *lenptr = len; |
468 | return patptr; |
469 | } |
470 | |
471 | /* The marvellous template parsing routine: Using state stored in *symptr, |
472 | * locates next template code and count |
473 | */ |
474 | STATIC bool |
475 | S_next_symbol(pTHX_ register tempsym_t* symptr ) |
18529408 |
476 | { |
49704364 |
477 | register char* patptr = symptr->patptr; |
478 | register char* patend = symptr->patend; |
479 | |
480 | symptr->flags &= ~FLAG_SLASH; |
481 | |
482 | while (patptr < patend) { |
483 | if (isSPACE(*patptr)) |
484 | patptr++; |
485 | else if (*patptr == '#') { |
486 | patptr++; |
487 | while (patptr < patend && *patptr != '\n') |
488 | patptr++; |
489 | if (patptr < patend) |
490 | patptr++; |
491 | } else { |
492 | /* We should have found a template code */ |
493 | I32 code = *patptr++ & 0xFF; |
494 | |
495 | if (code == ','){ /* grandfather in commas but with a warning */ |
496 | if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){ |
497 | symptr->flags |= FLAG_COMMA; |
498 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
499 | "Invalid type ',' in %s", |
500 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
501 | } |
502 | continue; |
503 | } |
504 | |
505 | /* for '(', skip to ')' */ |
506 | if (code == '(') { |
507 | if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' ) |
508 | Perl_croak(aTHX_ "()-group starts with a count in %s", |
509 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
510 | symptr->grpbeg = patptr; |
511 | patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') ); |
512 | if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL ) |
513 | Perl_croak(aTHX_ "Too deeply nested ()-groups in %s", |
514 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
515 | } |
516 | |
1109a392 |
517 | /* look for modifiers */ |
518 | while (patptr < patend) { |
519 | const char *allowed; |
520 | I32 modifier = 0; |
521 | switch (*patptr) { |
522 | case '!': |
523 | modifier = TYPE_IS_SHRIEKING; |
524 | allowed = "sSiIlLxXnNvV"; |
525 | break; |
526 | case '>': |
527 | modifier = TYPE_IS_BIG_ENDIAN; |
528 | allowed = "sSiIlLqQjJfFdDpP"; |
529 | break; |
530 | case '<': |
531 | modifier = TYPE_IS_LITTLE_ENDIAN; |
532 | allowed = "sSiIlLqQjJfFdDpP"; |
533 | break; |
534 | default: |
535 | break; |
536 | } |
537 | if (modifier == 0) |
538 | break; |
539 | if (!strchr(allowed, TYPE_NO_MODIFIERS(code))) |
540 | Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr, |
541 | allowed, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
542 | if ((code | modifier) == (code | TYPE_IS_BIG_ENDIAN | TYPE_IS_LITTLE_ENDIAN)) |
543 | Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s", |
544 | (int) TYPE_NO_MODIFIERS(code), |
545 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
546 | if (ckWARN(WARN_UNPACK)) { |
547 | if (code & modifier) |
548 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
549 | "Duplicate modifier '%c' after '%c' in %s", |
550 | *patptr, (int) TYPE_NO_MODIFIERS(code), |
551 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
552 | } |
553 | code |= modifier; |
554 | patptr++; |
49704364 |
555 | } |
556 | |
557 | /* look for count and/or / */ |
558 | if (patptr < patend) { |
559 | if (isDIGIT(*patptr)) { |
560 | patptr = get_num( patptr, &symptr->length ); |
561 | symptr->howlen = e_number; |
562 | |
563 | } else if (*patptr == '*') { |
564 | patptr++; |
565 | symptr->howlen = e_star; |
566 | |
567 | } else if (*patptr == '[') { |
568 | char* lenptr = ++patptr; |
569 | symptr->howlen = e_number; |
570 | patptr = group_end( patptr, patend, ']' ) + 1; |
571 | /* what kind of [] is it? */ |
572 | if (isDIGIT(*lenptr)) { |
573 | lenptr = get_num( lenptr, &symptr->length ); |
574 | if( *lenptr != ']' ) |
575 | Perl_croak(aTHX_ "Malformed integer in [] in %s", |
576 | symptr->flags & FLAG_PACK ? "pack" : "unpack"); |
577 | } else { |
578 | tempsym_t savsym = *symptr; |
579 | symptr->patend = patptr-1; |
580 | symptr->patptr = lenptr; |
581 | savsym.length = measure_struct(symptr); |
582 | *symptr = savsym; |
583 | } |
584 | } else { |
585 | symptr->howlen = e_no_len; |
586 | symptr->length = 1; |
587 | } |
588 | |
589 | /* try to find / */ |
590 | while (patptr < patend) { |
591 | if (isSPACE(*patptr)) |
592 | patptr++; |
593 | else if (*patptr == '#') { |
594 | patptr++; |
595 | while (patptr < patend && *patptr != '\n') |
596 | patptr++; |
597 | if (patptr < patend) |
598 | patptr++; |
599 | } else { |
600 | if( *patptr == '/' ){ |
601 | symptr->flags |= FLAG_SLASH; |
602 | patptr++; |
603 | if( patptr < patend && |
604 | (isDIGIT(*patptr) || *patptr == '*' || *patptr == '[') ) |
605 | Perl_croak(aTHX_ "'/' does not take a repeat count in %s", |
606 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
607 | } |
608 | break; |
609 | } |
18529408 |
610 | } |
49704364 |
611 | } else { |
612 | /* at end - no count, no / */ |
613 | symptr->howlen = e_no_len; |
614 | symptr->length = 1; |
615 | } |
616 | |
617 | symptr->code = code; |
618 | symptr->patptr = patptr; |
619 | return TRUE; |
18529408 |
620 | } |
49704364 |
621 | } |
622 | symptr->patptr = patptr; |
623 | return FALSE; |
18529408 |
624 | } |
625 | |
18529408 |
626 | /* |
627 | =for apidoc unpack_str |
628 | |
7accc089 |
629 | The engine implementing unpack() Perl function. Note: parameters strbeg, new_s |
630 | and ocnt are not used. This call should not be used, use unpackstring instead. |
18529408 |
631 | |
632 | =cut */ |
633 | |
634 | I32 |
635 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) |
a6ec74c1 |
636 | { |
49704364 |
637 | tempsym_t sym = { 0 }; |
638 | sym.patptr = pat; |
639 | sym.patend = patend; |
640 | sym.flags = flags; |
641 | |
642 | return unpack_rec(&sym, s, s, strend, NULL ); |
643 | } |
644 | |
7accc089 |
645 | /* |
646 | =for apidoc unpackstring |
647 | |
608d3aed |
648 | The engine implementing unpack() Perl function. C<unpackstring> puts the |
649 | extracted list items on the stack and returns the number of elements. |
650 | Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function. |
7accc089 |
651 | |
652 | =cut */ |
653 | |
654 | I32 |
655 | Perl_unpackstring(pTHX_ char *pat, register char *patend, register char *s, char *strend, U32 flags) |
656 | { |
657 | tempsym_t sym = { 0 }; |
658 | sym.patptr = pat; |
659 | sym.patend = patend; |
660 | sym.flags = flags; |
661 | |
662 | return unpack_rec(&sym, s, s, strend, NULL ); |
663 | } |
664 | |
49704364 |
665 | STATIC |
666 | I32 |
667 | S_unpack_rec(pTHX_ register tempsym_t* symptr, register char *s, char *strbeg, char *strend, char **new_s ) |
668 | { |
a6ec74c1 |
669 | dSP; |
a6ec74c1 |
670 | I32 datumtype; |
49704364 |
671 | register I32 len = 0; |
a6ec74c1 |
672 | register I32 bits = 0; |
673 | register char *str; |
18529408 |
674 | SV *sv; |
675 | I32 start_sp_offset = SP - PL_stack_base; |
49704364 |
676 | howlen_t howlen; |
a6ec74c1 |
677 | |
678 | /* These must not be in registers: */ |
a6ec74c1 |
679 | int aint; |
680 | long along; |
681 | #ifdef HAS_QUAD |
682 | Quad_t aquad; |
683 | #endif |
684 | U16 aushort; |
068bd2e7 |
685 | I16 asshort; |
a6ec74c1 |
686 | unsigned int auint; |
687 | U32 aulong; |
068bd2e7 |
688 | I32 aslong; |
a6ec74c1 |
689 | #ifdef HAS_QUAD |
690 | Uquad_t auquad; |
691 | #endif |
692 | char *aptr; |
693 | float afloat; |
694 | double adouble; |
695 | I32 checksum = 0; |
92d41999 |
696 | UV cuv = 0; |
a6ec74c1 |
697 | NV cdouble = 0.0; |
92d41999 |
698 | const int bits_in_uv = 8 * sizeof(cuv); |
49704364 |
699 | char* strrelbeg = s; |
700 | bool beyond = FALSE; |
701 | bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0; |
702 | |
92d41999 |
703 | IV aiv; |
704 | UV auv; |
705 | NV anv; |
706 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
707 | long double aldouble; |
708 | #endif |
a6ec74c1 |
709 | |
49704364 |
710 | while (next_symbol(symptr)) { |
711 | datumtype = symptr->code; |
206947d2 |
712 | /* do first one only unless in list context |
713 | / is implemented by unpacking the count, then poping it from the |
714 | stack, so must check that we're not in the middle of a / */ |
49704364 |
715 | if ( unpack_only_one |
206947d2 |
716 | && (SP - PL_stack_base == start_sp_offset + 1) |
49704364 |
717 | && (datumtype != '/') ) /* XXX can this be omitted */ |
206947d2 |
718 | break; |
49704364 |
719 | |
720 | switch( howlen = symptr->howlen ){ |
721 | case e_no_len: |
722 | case e_number: |
723 | len = symptr->length; |
724 | break; |
725 | case e_star: |
726 | len = strend - strbeg; /* long enough */ |
727 | break; |
728 | } |
18529408 |
729 | |
a6ec74c1 |
730 | redo_switch: |
49704364 |
731 | beyond = s >= strend; |
1109a392 |
732 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
733 | default: |
1109a392 |
734 | Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) ); |
49704364 |
735 | |
a6ec74c1 |
736 | case '%': |
49704364 |
737 | if (howlen == e_no_len) |
18529408 |
738 | len = 16; /* len is not specified */ |
a6ec74c1 |
739 | checksum = len; |
92d41999 |
740 | cuv = 0; |
a6ec74c1 |
741 | cdouble = 0; |
18529408 |
742 | continue; |
a6ec74c1 |
743 | break; |
18529408 |
744 | case '(': |
745 | { |
18529408 |
746 | char *ss = s; /* Move from register */ |
49704364 |
747 | tempsym_t savsym = *symptr; |
748 | symptr->patend = savsym.grpend; |
749 | symptr->level++; |
18529408 |
750 | PUTBACK; |
751 | while (len--) { |
49704364 |
752 | symptr->patptr = savsym.grpbeg; |
753 | unpack_rec(symptr, ss, strbeg, strend, &ss ); |
754 | if (ss == strend && savsym.howlen == e_star) |
755 | break; /* No way to continue */ |
18529408 |
756 | } |
757 | SPAGAIN; |
758 | s = ss; |
49704364 |
759 | savsym.flags = symptr->flags; |
760 | *symptr = savsym; |
18529408 |
761 | break; |
762 | } |
a6ec74c1 |
763 | case '@': |
49704364 |
764 | if (len > strend - strrelbeg) |
765 | Perl_croak(aTHX_ "'@' outside of string in unpack"); |
766 | s = strrelbeg + len; |
a6ec74c1 |
767 | break; |
62f95557 |
768 | case 'X' | TYPE_IS_SHRIEKING: |
769 | if (!len) /* Avoid division by 0 */ |
770 | len = 1; |
771 | len = (s - strbeg) % len; |
772 | /* FALL THROUGH */ |
a6ec74c1 |
773 | case 'X': |
774 | if (len > s - strbeg) |
49704364 |
775 | Perl_croak(aTHX_ "'X' outside of string in unpack" ); |
a6ec74c1 |
776 | s -= len; |
777 | break; |
62f95557 |
778 | case 'x' | TYPE_IS_SHRIEKING: |
779 | if (!len) /* Avoid division by 0 */ |
780 | len = 1; |
781 | aint = (s - strbeg) % len; |
782 | if (aint) /* Other portable ways? */ |
783 | len = len - aint; |
784 | else |
785 | len = 0; |
786 | /* FALL THROUGH */ |
a6ec74c1 |
787 | case 'x': |
788 | if (len > strend - s) |
49704364 |
789 | Perl_croak(aTHX_ "'x' outside of string in unpack"); |
a6ec74c1 |
790 | s += len; |
791 | break; |
792 | case '/': |
49704364 |
793 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
794 | break; |
a6ec74c1 |
795 | case 'A': |
796 | case 'Z': |
797 | case 'a': |
798 | if (len > strend - s) |
799 | len = strend - s; |
800 | if (checksum) |
801 | goto uchar_checksum; |
802 | sv = NEWSV(35, len); |
803 | sv_setpvn(sv, s, len); |
49704364 |
804 | if (len > 0 && (datumtype == 'A' || datumtype == 'Z')) { |
a6ec74c1 |
805 | aptr = s; /* borrow register */ |
806 | if (datumtype == 'Z') { /* 'Z' strips stuff after first null */ |
807 | s = SvPVX(sv); |
808 | while (*s) |
809 | s++; |
49704364 |
810 | if (howlen == e_star) /* exact for 'Z*' */ |
d50dd4e4 |
811 | len = s - SvPVX(sv) + 1; |
a6ec74c1 |
812 | } |
813 | else { /* 'A' strips both nulls and spaces */ |
814 | s = SvPVX(sv) + len - 1; |
815 | while (s >= SvPVX(sv) && (!*s || isSPACE(*s))) |
816 | s--; |
817 | *++s = '\0'; |
818 | } |
819 | SvCUR_set(sv, s - SvPVX(sv)); |
820 | s = aptr; /* unborrow register */ |
821 | } |
d50dd4e4 |
822 | s += len; |
a6ec74c1 |
823 | XPUSHs(sv_2mortal(sv)); |
824 | break; |
825 | case 'B': |
826 | case 'b': |
49704364 |
827 | if (howlen == e_star || len > (strend - s) * 8) |
a6ec74c1 |
828 | len = (strend - s) * 8; |
829 | if (checksum) { |
830 | if (!PL_bitcount) { |
831 | Newz(601, PL_bitcount, 256, char); |
832 | for (bits = 1; bits < 256; bits++) { |
833 | if (bits & 1) PL_bitcount[bits]++; |
834 | if (bits & 2) PL_bitcount[bits]++; |
835 | if (bits & 4) PL_bitcount[bits]++; |
836 | if (bits & 8) PL_bitcount[bits]++; |
837 | if (bits & 16) PL_bitcount[bits]++; |
838 | if (bits & 32) PL_bitcount[bits]++; |
839 | if (bits & 64) PL_bitcount[bits]++; |
840 | if (bits & 128) PL_bitcount[bits]++; |
841 | } |
842 | } |
843 | while (len >= 8) { |
92d41999 |
844 | cuv += PL_bitcount[*(unsigned char*)s++]; |
a6ec74c1 |
845 | len -= 8; |
846 | } |
847 | if (len) { |
848 | bits = *s; |
849 | if (datumtype == 'b') { |
850 | while (len-- > 0) { |
92d41999 |
851 | if (bits & 1) cuv++; |
a6ec74c1 |
852 | bits >>= 1; |
853 | } |
854 | } |
855 | else { |
856 | while (len-- > 0) { |
92d41999 |
857 | if (bits & 128) cuv++; |
a6ec74c1 |
858 | bits <<= 1; |
859 | } |
860 | } |
861 | } |
862 | break; |
863 | } |
864 | sv = NEWSV(35, len + 1); |
865 | SvCUR_set(sv, len); |
866 | SvPOK_on(sv); |
867 | str = SvPVX(sv); |
868 | if (datumtype == 'b') { |
869 | aint = len; |
870 | for (len = 0; len < aint; len++) { |
871 | if (len & 7) /*SUPPRESS 595*/ |
872 | bits >>= 1; |
873 | else |
874 | bits = *s++; |
875 | *str++ = '0' + (bits & 1); |
876 | } |
877 | } |
878 | else { |
879 | aint = len; |
880 | for (len = 0; len < aint; len++) { |
881 | if (len & 7) |
882 | bits <<= 1; |
883 | else |
884 | bits = *s++; |
885 | *str++ = '0' + ((bits & 128) != 0); |
886 | } |
887 | } |
888 | *str = '\0'; |
889 | XPUSHs(sv_2mortal(sv)); |
890 | break; |
891 | case 'H': |
892 | case 'h': |
49704364 |
893 | if (howlen == e_star || len > (strend - s) * 2) |
a6ec74c1 |
894 | len = (strend - s) * 2; |
895 | sv = NEWSV(35, len + 1); |
896 | SvCUR_set(sv, len); |
897 | SvPOK_on(sv); |
898 | str = SvPVX(sv); |
899 | if (datumtype == 'h') { |
900 | aint = len; |
901 | for (len = 0; len < aint; len++) { |
902 | if (len & 1) |
903 | bits >>= 4; |
904 | else |
905 | bits = *s++; |
906 | *str++ = PL_hexdigit[bits & 15]; |
907 | } |
908 | } |
909 | else { |
910 | aint = len; |
911 | for (len = 0; len < aint; len++) { |
912 | if (len & 1) |
913 | bits <<= 4; |
914 | else |
915 | bits = *s++; |
916 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
917 | } |
918 | } |
919 | *str = '\0'; |
920 | XPUSHs(sv_2mortal(sv)); |
921 | break; |
922 | case 'c': |
923 | if (len > strend - s) |
924 | len = strend - s; |
925 | if (checksum) { |
926 | while (len-- > 0) { |
927 | aint = *s++; |
928 | if (aint >= 128) /* fake up signed chars */ |
929 | aint -= 256; |
fa8ec7c1 |
930 | if (checksum > bits_in_uv) |
931 | cdouble += (NV)aint; |
932 | else |
92d41999 |
933 | cuv += aint; |
a6ec74c1 |
934 | } |
935 | } |
936 | else { |
49704364 |
937 | if (len && unpack_only_one) |
c8f824eb |
938 | len = 1; |
a6ec74c1 |
939 | EXTEND(SP, len); |
940 | EXTEND_MORTAL(len); |
941 | while (len-- > 0) { |
942 | aint = *s++; |
943 | if (aint >= 128) /* fake up signed chars */ |
944 | aint -= 256; |
945 | sv = NEWSV(36, 0); |
946 | sv_setiv(sv, (IV)aint); |
947 | PUSHs(sv_2mortal(sv)); |
948 | } |
949 | } |
950 | break; |
951 | case 'C': |
35bcd338 |
952 | unpack_C: /* unpack U will jump here if not UTF-8 */ |
953 | if (len == 0) { |
49704364 |
954 | symptr->flags &= ~FLAG_UNPACK_DO_UTF8; |
35bcd338 |
955 | break; |
956 | } |
a6ec74c1 |
957 | if (len > strend - s) |
958 | len = strend - s; |
959 | if (checksum) { |
960 | uchar_checksum: |
961 | while (len-- > 0) { |
962 | auint = *s++ & 255; |
92d41999 |
963 | cuv += auint; |
a6ec74c1 |
964 | } |
965 | } |
966 | else { |
49704364 |
967 | if (len && unpack_only_one) |
c8f824eb |
968 | len = 1; |
a6ec74c1 |
969 | EXTEND(SP, len); |
970 | EXTEND_MORTAL(len); |
971 | while (len-- > 0) { |
972 | auint = *s++ & 255; |
973 | sv = NEWSV(37, 0); |
974 | sv_setiv(sv, (IV)auint); |
975 | PUSHs(sv_2mortal(sv)); |
976 | } |
977 | } |
978 | break; |
979 | case 'U': |
35bcd338 |
980 | if (len == 0) { |
49704364 |
981 | symptr->flags |= FLAG_UNPACK_DO_UTF8; |
35bcd338 |
982 | break; |
983 | } |
49704364 |
984 | if ((symptr->flags & FLAG_UNPACK_DO_UTF8) == 0) |
35bcd338 |
985 | goto unpack_C; |
a6ec74c1 |
986 | if (len > strend - s) |
987 | len = strend - s; |
988 | if (checksum) { |
989 | while (len-- > 0 && s < strend) { |
990 | STRLEN alen; |
872c91ae |
991 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV)); |
a6ec74c1 |
992 | along = alen; |
993 | s += along; |
fa8ec7c1 |
994 | if (checksum > bits_in_uv) |
a6ec74c1 |
995 | cdouble += (NV)auint; |
996 | else |
92d41999 |
997 | cuv += auint; |
a6ec74c1 |
998 | } |
999 | } |
1000 | else { |
49704364 |
1001 | if (len && unpack_only_one) |
c8f824eb |
1002 | len = 1; |
a6ec74c1 |
1003 | EXTEND(SP, len); |
1004 | EXTEND_MORTAL(len); |
1005 | while (len-- > 0 && s < strend) { |
1006 | STRLEN alen; |
872c91ae |
1007 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV)); |
a6ec74c1 |
1008 | along = alen; |
1009 | s += along; |
1010 | sv = NEWSV(37, 0); |
1011 | sv_setuv(sv, (UV)auint); |
1012 | PUSHs(sv_2mortal(sv)); |
1013 | } |
1014 | } |
1015 | break; |
49704364 |
1016 | case 's' | TYPE_IS_SHRIEKING: |
1017 | #if SHORTSIZE != SIZE16 |
1018 | along = (strend - s) / sizeof(short); |
a6ec74c1 |
1019 | if (len > along) |
1020 | len = along; |
1021 | if (checksum) { |
49704364 |
1022 | short ashort; |
1023 | while (len-- > 0) { |
1109a392 |
1024 | COPYNN(s, &ashort, sizeof(short)); |
1025 | DO_BO_UNPACK(ashort, s); |
1026 | s += sizeof(short); |
1027 | if (checksum > bits_in_uv) |
1028 | cdouble += (NV)ashort; |
1029 | else |
1030 | cuv += ashort; |
a6ec74c1 |
1031 | } |
49704364 |
1032 | } |
1033 | else { |
73b5735c |
1034 | short ashort; |
49704364 |
1035 | if (len && unpack_only_one) |
1036 | len = 1; |
1037 | EXTEND(SP, len); |
1038 | EXTEND_MORTAL(len); |
49704364 |
1039 | while (len-- > 0) { |
1040 | COPYNN(s, &ashort, sizeof(short)); |
1109a392 |
1041 | DO_BO_UNPACK(ashort, s); |
49704364 |
1042 | s += sizeof(short); |
1043 | sv = NEWSV(38, 0); |
1044 | sv_setiv(sv, (IV)ashort); |
1045 | PUSHs(sv_2mortal(sv)); |
1046 | } |
1047 | } |
1048 | break; |
1049 | #else |
1050 | /* Fallthrough! */ |
a6ec74c1 |
1051 | #endif |
49704364 |
1052 | case 's': |
1053 | along = (strend - s) / SIZE16; |
1054 | if (len > along) |
1055 | len = along; |
1056 | if (checksum) { |
1057 | while (len-- > 0) { |
1109a392 |
1058 | COPY16(s, &asshort); |
1059 | DO_BO_UNPACK(asshort, 16); |
1060 | #if U16SIZE > SIZE16 |
1061 | if (asshort > 32767) |
1062 | asshort -= 65536; |
a6ec74c1 |
1063 | #endif |
49704364 |
1064 | s += SIZE16; |
1065 | if (checksum > bits_in_uv) |
1109a392 |
1066 | cdouble += (NV)asshort; |
49704364 |
1067 | else |
1109a392 |
1068 | cuv += asshort; |
a6ec74c1 |
1069 | } |
1070 | } |
1071 | else { |
49704364 |
1072 | if (len && unpack_only_one) |
c8f824eb |
1073 | len = 1; |
a6ec74c1 |
1074 | EXTEND(SP, len); |
1075 | EXTEND_MORTAL(len); |
49704364 |
1076 | |
1077 | while (len-- > 0) { |
1109a392 |
1078 | COPY16(s, &asshort); |
1079 | DO_BO_UNPACK(asshort, 16); |
1080 | #if U16SIZE > SIZE16 |
1081 | if (asshort > 32767) |
1082 | asshort -= 65536; |
a6ec74c1 |
1083 | #endif |
49704364 |
1084 | s += SIZE16; |
1085 | sv = NEWSV(38, 0); |
1109a392 |
1086 | sv_setiv(sv, (IV)asshort); |
49704364 |
1087 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 |
1088 | } |
1089 | } |
1090 | break; |
49704364 |
1091 | case 'S' | TYPE_IS_SHRIEKING: |
1092 | #if SHORTSIZE != SIZE16 |
7accc089 |
1093 | along = (strend - s) / sizeof(unsigned short); |
49704364 |
1094 | if (len > along) |
1095 | len = along; |
1096 | if (checksum) { |
1097 | unsigned short aushort; |
1098 | while (len-- > 0) { |
1099 | COPYNN(s, &aushort, sizeof(unsigned short)); |
1109a392 |
1100 | DO_BO_UNPACK(aushort, s); |
49704364 |
1101 | s += sizeof(unsigned short); |
1102 | if (checksum > bits_in_uv) |
1103 | cdouble += (NV)aushort; |
1104 | else |
1105 | cuv += aushort; |
1106 | } |
1107 | } |
1108 | else { |
1109 | if (len && unpack_only_one) |
1110 | len = 1; |
1111 | EXTEND(SP, len); |
1112 | EXTEND_MORTAL(len); |
1113 | while (len-- > 0) { |
1114 | unsigned short aushort; |
1115 | COPYNN(s, &aushort, sizeof(unsigned short)); |
1109a392 |
1116 | DO_BO_UNPACK(aushort, s); |
49704364 |
1117 | s += sizeof(unsigned short); |
1118 | sv = NEWSV(39, 0); |
1119 | sv_setiv(sv, (UV)aushort); |
1120 | PUSHs(sv_2mortal(sv)); |
1121 | } |
1122 | } |
1123 | break; |
1124 | #else |
1125 | /* Fallhrough! */ |
1126 | #endif |
a6ec74c1 |
1127 | case 'v': |
1128 | case 'n': |
1129 | case 'S': |
a6ec74c1 |
1130 | along = (strend - s) / SIZE16; |
a6ec74c1 |
1131 | if (len > along) |
1132 | len = along; |
1133 | if (checksum) { |
49704364 |
1134 | while (len-- > 0) { |
1135 | COPY16(s, &aushort); |
1109a392 |
1136 | DO_BO_UNPACK(aushort, 16); |
49704364 |
1137 | s += SIZE16; |
a6ec74c1 |
1138 | #ifdef HAS_NTOHS |
49704364 |
1139 | if (datumtype == 'n') |
1140 | aushort = PerlSock_ntohs(aushort); |
a6ec74c1 |
1141 | #endif |
1142 | #ifdef HAS_VTOHS |
49704364 |
1143 | if (datumtype == 'v') |
1144 | aushort = vtohs(aushort); |
a6ec74c1 |
1145 | #endif |
49704364 |
1146 | if (checksum > bits_in_uv) |
1147 | cdouble += (NV)aushort; |
1148 | else |
068bd2e7 |
1149 | cuv += aushort; |
a6ec74c1 |
1150 | } |
1151 | } |
1152 | else { |
49704364 |
1153 | if (len && unpack_only_one) |
c8f824eb |
1154 | len = 1; |
a6ec74c1 |
1155 | EXTEND(SP, len); |
1156 | EXTEND_MORTAL(len); |
49704364 |
1157 | while (len-- > 0) { |
1158 | COPY16(s, &aushort); |
1109a392 |
1159 | DO_BO_UNPACK(aushort, 16); |
49704364 |
1160 | s += SIZE16; |
1161 | sv = NEWSV(39, 0); |
a6ec74c1 |
1162 | #ifdef HAS_NTOHS |
49704364 |
1163 | if (datumtype == 'n') |
1164 | aushort = PerlSock_ntohs(aushort); |
a6ec74c1 |
1165 | #endif |
1166 | #ifdef HAS_VTOHS |
49704364 |
1167 | if (datumtype == 'v') |
1168 | aushort = vtohs(aushort); |
a6ec74c1 |
1169 | #endif |
49704364 |
1170 | sv_setiv(sv, (UV)aushort); |
1171 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 |
1172 | } |
1173 | } |
1174 | break; |
068bd2e7 |
1175 | case 'v' | TYPE_IS_SHRIEKING: |
1176 | case 'n' | TYPE_IS_SHRIEKING: |
1177 | along = (strend - s) / SIZE16; |
1178 | if (len > along) |
1179 | len = along; |
1180 | if (checksum) { |
1181 | while (len-- > 0) { |
1182 | COPY16(s, &asshort); |
1183 | s += SIZE16; |
1184 | #ifdef HAS_NTOHS |
1185 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) |
1186 | asshort = (I16)PerlSock_ntohs((U16)asshort); |
1187 | #endif |
1188 | #ifdef HAS_VTOHS |
1189 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) |
1190 | asshort = (I16)vtohs((U16)asshort); |
1191 | #endif |
1192 | if (checksum > bits_in_uv) |
1193 | cdouble += (NV)asshort; |
1194 | else |
1195 | cuv += asshort; |
1196 | } |
1197 | } |
1198 | else { |
1199 | if (len && unpack_only_one) |
1200 | len = 1; |
1201 | EXTEND(SP, len); |
1202 | EXTEND_MORTAL(len); |
1203 | while (len-- > 0) { |
1204 | COPY16(s, &asshort); |
1205 | s += SIZE16; |
1206 | #ifdef HAS_NTOHS |
1207 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) |
1208 | asshort = (I16)PerlSock_ntohs((U16)asshort); |
1209 | #endif |
1210 | #ifdef HAS_VTOHS |
1211 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) |
1212 | asshort = (I16)vtohs((U16)asshort); |
1213 | #endif |
1214 | sv = NEWSV(39, 0); |
1215 | sv_setiv(sv, (IV)asshort); |
1216 | PUSHs(sv_2mortal(sv)); |
1217 | } |
1218 | } |
1219 | break; |
a6ec74c1 |
1220 | case 'i': |
49704364 |
1221 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
1222 | along = (strend - s) / sizeof(int); |
1223 | if (len > along) |
1224 | len = along; |
1225 | if (checksum) { |
1226 | while (len-- > 0) { |
1227 | Copy(s, &aint, 1, int); |
1109a392 |
1228 | DO_BO_UNPACK(aint, i); |
a6ec74c1 |
1229 | s += sizeof(int); |
fa8ec7c1 |
1230 | if (checksum > bits_in_uv) |
a6ec74c1 |
1231 | cdouble += (NV)aint; |
1232 | else |
92d41999 |
1233 | cuv += aint; |
a6ec74c1 |
1234 | } |
1235 | } |
1236 | else { |
49704364 |
1237 | if (len && unpack_only_one) |
c8f824eb |
1238 | len = 1; |
a6ec74c1 |
1239 | EXTEND(SP, len); |
1240 | EXTEND_MORTAL(len); |
1241 | while (len-- > 0) { |
1242 | Copy(s, &aint, 1, int); |
1109a392 |
1243 | DO_BO_UNPACK(aint, i); |
a6ec74c1 |
1244 | s += sizeof(int); |
1245 | sv = NEWSV(40, 0); |
1246 | #ifdef __osf__ |
1247 | /* Without the dummy below unpack("i", pack("i",-1)) |
1248 | * return 0xFFffFFff instead of -1 for Digital Unix V4.0 |
1249 | * cc with optimization turned on. |
1250 | * |
1251 | * The bug was detected in |
1252 | * DEC C V5.8-009 on Digital UNIX V4.0 (Rev. 1091) (V4.0E) |
1253 | * with optimization (-O4) turned on. |
1254 | * DEC C V5.2-040 on Digital UNIX V4.0 (Rev. 564) (V4.0B) |
1255 | * does not have this problem even with -O4. |
1256 | * |
1257 | * This bug was reported as DECC_BUGS 1431 |
1258 | * and tracked internally as GEM_BUGS 7775. |
1259 | * |
1260 | * The bug is fixed in |
1261 | * Tru64 UNIX V5.0: Compaq C V6.1-006 or later |
1262 | * UNIX V4.0F support: DEC C V5.9-006 or later |
1263 | * UNIX V4.0E support: DEC C V5.8-011 or later |
1264 | * and also in DTK. |
1265 | * |
1266 | * See also few lines later for the same bug. |
1267 | */ |
1268 | (aint) ? |
1269 | sv_setiv(sv, (IV)aint) : |
1270 | #endif |
1271 | sv_setiv(sv, (IV)aint); |
1272 | PUSHs(sv_2mortal(sv)); |
1273 | } |
1274 | } |
1275 | break; |
1276 | case 'I': |
49704364 |
1277 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
1278 | along = (strend - s) / sizeof(unsigned int); |
1279 | if (len > along) |
1280 | len = along; |
1281 | if (checksum) { |
1282 | while (len-- > 0) { |
1283 | Copy(s, &auint, 1, unsigned int); |
1109a392 |
1284 | DO_BO_UNPACK(auint, i); |
a6ec74c1 |
1285 | s += sizeof(unsigned int); |
fa8ec7c1 |
1286 | if (checksum > bits_in_uv) |
a6ec74c1 |
1287 | cdouble += (NV)auint; |
1288 | else |
92d41999 |
1289 | cuv += auint; |
a6ec74c1 |
1290 | } |
1291 | } |
1292 | else { |
49704364 |
1293 | if (len && unpack_only_one) |
c8f824eb |
1294 | len = 1; |
a6ec74c1 |
1295 | EXTEND(SP, len); |
1296 | EXTEND_MORTAL(len); |
1297 | while (len-- > 0) { |
1298 | Copy(s, &auint, 1, unsigned int); |
1109a392 |
1299 | DO_BO_UNPACK(auint, i); |
a6ec74c1 |
1300 | s += sizeof(unsigned int); |
1301 | sv = NEWSV(41, 0); |
1302 | #ifdef __osf__ |
1303 | /* Without the dummy below unpack("I", pack("I",0xFFFFFFFF)) |
1304 | * returns 1.84467440737096e+19 instead of 0xFFFFFFFF. |
1305 | * See details few lines earlier. */ |
1306 | (auint) ? |
1307 | sv_setuv(sv, (UV)auint) : |
1308 | #endif |
1309 | sv_setuv(sv, (UV)auint); |
1310 | PUSHs(sv_2mortal(sv)); |
1311 | } |
1312 | } |
1313 | break; |
92d41999 |
1314 | case 'j': |
1315 | along = (strend - s) / IVSIZE; |
1316 | if (len > along) |
1317 | len = along; |
1318 | if (checksum) { |
1319 | while (len-- > 0) { |
1320 | Copy(s, &aiv, 1, IV); |
1109a392 |
1321 | #if IVSIZE == INTSIZE |
1322 | DO_BO_UNPACK(aiv, i); |
1323 | #elif IVSIZE == LONGSIZE |
1324 | DO_BO_UNPACK(aiv, l); |
1325 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
1326 | DO_BO_UNPACK(aiv, 64); |
1327 | #endif |
92d41999 |
1328 | s += IVSIZE; |
1329 | if (checksum > bits_in_uv) |
1330 | cdouble += (NV)aiv; |
1331 | else |
1332 | cuv += aiv; |
1333 | } |
1334 | } |
1335 | else { |
49704364 |
1336 | if (len && unpack_only_one) |
c8f824eb |
1337 | len = 1; |
92d41999 |
1338 | EXTEND(SP, len); |
1339 | EXTEND_MORTAL(len); |
1340 | while (len-- > 0) { |
1341 | Copy(s, &aiv, 1, IV); |
1109a392 |
1342 | #if IVSIZE == INTSIZE |
1343 | DO_BO_UNPACK(aiv, i); |
1344 | #elif IVSIZE == LONGSIZE |
1345 | DO_BO_UNPACK(aiv, l); |
1346 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
1347 | DO_BO_UNPACK(aiv, 64); |
1348 | #endif |
92d41999 |
1349 | s += IVSIZE; |
1350 | sv = NEWSV(40, 0); |
1351 | sv_setiv(sv, aiv); |
1352 | PUSHs(sv_2mortal(sv)); |
1353 | } |
1354 | } |
1355 | break; |
1356 | case 'J': |
1357 | along = (strend - s) / UVSIZE; |
1358 | if (len > along) |
1359 | len = along; |
1360 | if (checksum) { |
1361 | while (len-- > 0) { |
1362 | Copy(s, &auv, 1, UV); |
1109a392 |
1363 | #if UVSIZE == INTSIZE |
1364 | DO_BO_UNPACK(auv, i); |
1365 | #elif UVSIZE == LONGSIZE |
1366 | DO_BO_UNPACK(auv, l); |
1367 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
1368 | DO_BO_UNPACK(auv, 64); |
1369 | #endif |
92d41999 |
1370 | s += UVSIZE; |
1371 | if (checksum > bits_in_uv) |
1372 | cdouble += (NV)auv; |
1373 | else |
1374 | cuv += auv; |
1375 | } |
1376 | } |
1377 | else { |
49704364 |
1378 | if (len && unpack_only_one) |
c8f824eb |
1379 | len = 1; |
92d41999 |
1380 | EXTEND(SP, len); |
1381 | EXTEND_MORTAL(len); |
1382 | while (len-- > 0) { |
1383 | Copy(s, &auv, 1, UV); |
1109a392 |
1384 | #if UVSIZE == INTSIZE |
1385 | DO_BO_UNPACK(auv, i); |
1386 | #elif UVSIZE == LONGSIZE |
1387 | DO_BO_UNPACK(auv, l); |
1388 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
1389 | DO_BO_UNPACK(auv, 64); |
1390 | #endif |
92d41999 |
1391 | s += UVSIZE; |
1392 | sv = NEWSV(41, 0); |
1393 | sv_setuv(sv, auv); |
1394 | PUSHs(sv_2mortal(sv)); |
1395 | } |
1396 | } |
1397 | break; |
49704364 |
1398 | case 'l' | TYPE_IS_SHRIEKING: |
1399 | #if LONGSIZE != SIZE32 |
1400 | along = (strend - s) / sizeof(long); |
a6ec74c1 |
1401 | if (len > along) |
1402 | len = along; |
1403 | if (checksum) { |
49704364 |
1404 | while (len-- > 0) { |
1405 | COPYNN(s, &along, sizeof(long)); |
1109a392 |
1406 | DO_BO_UNPACK(along, l); |
49704364 |
1407 | s += sizeof(long); |
1408 | if (checksum > bits_in_uv) |
1409 | cdouble += (NV)along; |
1410 | else |
1411 | cuv += along; |
a6ec74c1 |
1412 | } |
49704364 |
1413 | } |
1414 | else { |
1415 | if (len && unpack_only_one) |
1416 | len = 1; |
1417 | EXTEND(SP, len); |
1418 | EXTEND_MORTAL(len); |
1419 | while (len-- > 0) { |
1420 | COPYNN(s, &along, sizeof(long)); |
1109a392 |
1421 | DO_BO_UNPACK(along, l); |
49704364 |
1422 | s += sizeof(long); |
1423 | sv = NEWSV(42, 0); |
1424 | sv_setiv(sv, (IV)along); |
1425 | PUSHs(sv_2mortal(sv)); |
1426 | } |
1427 | } |
1428 | break; |
1429 | #else |
1430 | /* Fallthrough! */ |
a6ec74c1 |
1431 | #endif |
49704364 |
1432 | case 'l': |
1433 | along = (strend - s) / SIZE32; |
1434 | if (len > along) |
1435 | len = along; |
1436 | if (checksum) { |
1437 | while (len-- > 0) { |
a6ec74c1 |
1438 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
49704364 |
1439 | I32 along; |
a6ec74c1 |
1440 | #endif |
49704364 |
1441 | COPY32(s, &along); |
1109a392 |
1442 | DO_BO_UNPACK(along, 32); |
a6ec74c1 |
1443 | #if LONGSIZE > SIZE32 |
49704364 |
1444 | if (along > 2147483647) |
1445 | along -= 4294967296; |
a6ec74c1 |
1446 | #endif |
49704364 |
1447 | s += SIZE32; |
1448 | if (checksum > bits_in_uv) |
1449 | cdouble += (NV)along; |
1450 | else |
1451 | cuv += along; |
a6ec74c1 |
1452 | } |
1453 | } |
1454 | else { |
49704364 |
1455 | if (len && unpack_only_one) |
c8f824eb |
1456 | len = 1; |
a6ec74c1 |
1457 | EXTEND(SP, len); |
1458 | EXTEND_MORTAL(len); |
49704364 |
1459 | while (len-- > 0) { |
a6ec74c1 |
1460 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
49704364 |
1461 | I32 along; |
a6ec74c1 |
1462 | #endif |
49704364 |
1463 | COPY32(s, &along); |
1109a392 |
1464 | DO_BO_UNPACK(along, 32); |
a6ec74c1 |
1465 | #if LONGSIZE > SIZE32 |
49704364 |
1466 | if (along > 2147483647) |
1467 | along -= 4294967296; |
a6ec74c1 |
1468 | #endif |
49704364 |
1469 | s += SIZE32; |
1470 | sv = NEWSV(42, 0); |
1471 | sv_setiv(sv, (IV)along); |
1472 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 |
1473 | } |
1474 | } |
1475 | break; |
49704364 |
1476 | case 'L' | TYPE_IS_SHRIEKING: |
1477 | #if LONGSIZE != SIZE32 |
1478 | along = (strend - s) / sizeof(unsigned long); |
1479 | if (len > along) |
1480 | len = along; |
1481 | if (checksum) { |
1482 | while (len-- > 0) { |
1483 | unsigned long aulong; |
1484 | COPYNN(s, &aulong, sizeof(unsigned long)); |
1109a392 |
1485 | DO_BO_UNPACK(aulong, l); |
49704364 |
1486 | s += sizeof(unsigned long); |
1487 | if (checksum > bits_in_uv) |
1488 | cdouble += (NV)aulong; |
1489 | else |
1490 | cuv += aulong; |
1491 | } |
1492 | } |
1493 | else { |
1494 | if (len && unpack_only_one) |
1495 | len = 1; |
1496 | EXTEND(SP, len); |
1497 | EXTEND_MORTAL(len); |
1498 | while (len-- > 0) { |
1499 | unsigned long aulong; |
1500 | COPYNN(s, &aulong, sizeof(unsigned long)); |
1109a392 |
1501 | DO_BO_UNPACK(aulong, l); |
49704364 |
1502 | s += sizeof(unsigned long); |
1503 | sv = NEWSV(43, 0); |
1504 | sv_setuv(sv, (UV)aulong); |
1505 | PUSHs(sv_2mortal(sv)); |
1506 | } |
1507 | } |
1508 | break; |
1509 | #else |
1510 | /* Fall through! */ |
1511 | #endif |
a6ec74c1 |
1512 | case 'V': |
1513 | case 'N': |
1514 | case 'L': |
a6ec74c1 |
1515 | along = (strend - s) / SIZE32; |
a6ec74c1 |
1516 | if (len > along) |
1517 | len = along; |
1518 | if (checksum) { |
49704364 |
1519 | while (len-- > 0) { |
1520 | COPY32(s, &aulong); |
1109a392 |
1521 | DO_BO_UNPACK(aulong, 32); |
49704364 |
1522 | s += SIZE32; |
a6ec74c1 |
1523 | #ifdef HAS_NTOHL |
49704364 |
1524 | if (datumtype == 'N') |
1525 | aulong = PerlSock_ntohl(aulong); |
a6ec74c1 |
1526 | #endif |
1527 | #ifdef HAS_VTOHL |
49704364 |
1528 | if (datumtype == 'V') |
1529 | aulong = vtohl(aulong); |
a6ec74c1 |
1530 | #endif |
49704364 |
1531 | if (checksum > bits_in_uv) |
1532 | cdouble += (NV)aulong; |
1533 | else |
1534 | cuv += aulong; |
a6ec74c1 |
1535 | } |
1536 | } |
1537 | else { |
49704364 |
1538 | if (len && unpack_only_one) |
c8f824eb |
1539 | len = 1; |
a6ec74c1 |
1540 | EXTEND(SP, len); |
1541 | EXTEND_MORTAL(len); |
49704364 |
1542 | while (len-- > 0) { |
1543 | COPY32(s, &aulong); |
1109a392 |
1544 | DO_BO_UNPACK(aulong, 32); |
49704364 |
1545 | s += SIZE32; |
a6ec74c1 |
1546 | #ifdef HAS_NTOHL |
49704364 |
1547 | if (datumtype == 'N') |
1548 | aulong = PerlSock_ntohl(aulong); |
a6ec74c1 |
1549 | #endif |
1550 | #ifdef HAS_VTOHL |
49704364 |
1551 | if (datumtype == 'V') |
1552 | aulong = vtohl(aulong); |
a6ec74c1 |
1553 | #endif |
49704364 |
1554 | sv = NEWSV(43, 0); |
1555 | sv_setuv(sv, (UV)aulong); |
1556 | PUSHs(sv_2mortal(sv)); |
a6ec74c1 |
1557 | } |
1558 | } |
1559 | break; |
068bd2e7 |
1560 | case 'V' | TYPE_IS_SHRIEKING: |
1561 | case 'N' | TYPE_IS_SHRIEKING: |
1562 | along = (strend - s) / SIZE32; |
1563 | if (len > along) |
1564 | len = along; |
1565 | if (checksum) { |
1566 | while (len-- > 0) { |
1567 | COPY32(s, &aslong); |
1568 | s += SIZE32; |
1569 | #ifdef HAS_NTOHL |
1570 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) |
1571 | aslong = (I32)PerlSock_ntohl((U32)aslong); |
1572 | #endif |
1573 | #ifdef HAS_VTOHL |
1574 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) |
1575 | aslong = (I32)vtohl((U32)aslong); |
1576 | #endif |
1577 | if (checksum > bits_in_uv) |
1578 | cdouble += (NV)aslong; |
1579 | else |
1580 | cuv += aslong; |
1581 | } |
1582 | } |
1583 | else { |
1584 | if (len && unpack_only_one) |
1585 | len = 1; |
1586 | EXTEND(SP, len); |
1587 | EXTEND_MORTAL(len); |
1588 | while (len-- > 0) { |
1589 | COPY32(s, &aslong); |
1590 | s += SIZE32; |
1591 | #ifdef HAS_NTOHL |
1592 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) |
1593 | aslong = (I32)PerlSock_ntohl((U32)aslong); |
1594 | #endif |
1595 | #ifdef HAS_VTOHL |
1596 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) |
1597 | aslong = (I32)vtohl((U32)aslong); |
1598 | #endif |
1599 | sv = NEWSV(43, 0); |
1600 | sv_setiv(sv, (IV)aslong); |
1601 | PUSHs(sv_2mortal(sv)); |
1602 | } |
1603 | } |
1604 | break; |
a6ec74c1 |
1605 | case 'p': |
1606 | along = (strend - s) / sizeof(char*); |
1607 | if (len > along) |
1608 | len = along; |
1609 | EXTEND(SP, len); |
1610 | EXTEND_MORTAL(len); |
1611 | while (len-- > 0) { |
1612 | if (sizeof(char*) > strend - s) |
1613 | break; |
1614 | else { |
1615 | Copy(s, &aptr, 1, char*); |
1109a392 |
1616 | DO_BO_UNPACK_P(aptr); |
a6ec74c1 |
1617 | s += sizeof(char*); |
1618 | } |
1619 | sv = NEWSV(44, 0); |
1620 | if (aptr) |
1621 | sv_setpv(sv, aptr); |
1622 | PUSHs(sv_2mortal(sv)); |
1623 | } |
1624 | break; |
1625 | case 'w': |
49704364 |
1626 | if (len && unpack_only_one) |
c8f824eb |
1627 | len = 1; |
a6ec74c1 |
1628 | EXTEND(SP, len); |
1629 | EXTEND_MORTAL(len); |
1630 | { |
1631 | UV auv = 0; |
1632 | U32 bytes = 0; |
1633 | |
1634 | while ((len > 0) && (s < strend)) { |
1635 | auv = (auv << 7) | (*s & 0x7f); |
1636 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
1637 | if ((U8)(*s++) < 0x80) { |
1638 | bytes = 0; |
1639 | sv = NEWSV(40, 0); |
1640 | sv_setuv(sv, auv); |
1641 | PUSHs(sv_2mortal(sv)); |
1642 | len--; |
1643 | auv = 0; |
1644 | } |
1645 | else if (++bytes >= sizeof(UV)) { /* promote to string */ |
1646 | char *t; |
1647 | STRLEN n_a; |
1648 | |
1649 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); |
1650 | while (s < strend) { |
eb160463 |
1651 | sv = mul128(sv, (U8)(*s & 0x7f)); |
a6ec74c1 |
1652 | if (!(*s++ & 0x80)) { |
1653 | bytes = 0; |
1654 | break; |
1655 | } |
1656 | } |
1657 | t = SvPV(sv, n_a); |
1658 | while (*t == '0') |
1659 | t++; |
1660 | sv_chop(sv, t); |
1661 | PUSHs(sv_2mortal(sv)); |
1662 | len--; |
1663 | auv = 0; |
1664 | } |
1665 | } |
1666 | if ((s >= strend) && bytes) |
49704364 |
1667 | Perl_croak(aTHX_ "Unterminated compressed integer in unpack"); |
a6ec74c1 |
1668 | } |
1669 | break; |
1670 | case 'P': |
49704364 |
1671 | if (symptr->howlen == e_star) |
1672 | Perl_croak(aTHX_ "'P' must have an explicit size in unpack"); |
a6ec74c1 |
1673 | EXTEND(SP, 1); |
1674 | if (sizeof(char*) > strend - s) |
1675 | break; |
1676 | else { |
1677 | Copy(s, &aptr, 1, char*); |
1109a392 |
1678 | DO_BO_UNPACK_P(aptr); |
a6ec74c1 |
1679 | s += sizeof(char*); |
1680 | } |
1681 | sv = NEWSV(44, 0); |
1682 | if (aptr) |
1683 | sv_setpvn(sv, aptr, len); |
1684 | PUSHs(sv_2mortal(sv)); |
1685 | break; |
1686 | #ifdef HAS_QUAD |
1687 | case 'q': |
1688 | along = (strend - s) / sizeof(Quad_t); |
1689 | if (len > along) |
1690 | len = along; |
fa8ec7c1 |
1691 | if (checksum) { |
1692 | while (len-- > 0) { |
a6ec74c1 |
1693 | Copy(s, &aquad, 1, Quad_t); |
1109a392 |
1694 | DO_BO_UNPACK(aquad, 64); |
a6ec74c1 |
1695 | s += sizeof(Quad_t); |
fa8ec7c1 |
1696 | if (checksum > bits_in_uv) |
1697 | cdouble += (NV)aquad; |
1698 | else |
92d41999 |
1699 | cuv += aquad; |
a6ec74c1 |
1700 | } |
a6ec74c1 |
1701 | } |
fa8ec7c1 |
1702 | else { |
49704364 |
1703 | if (len && unpack_only_one) |
c8f824eb |
1704 | len = 1; |
fa8ec7c1 |
1705 | EXTEND(SP, len); |
1706 | EXTEND_MORTAL(len); |
1707 | while (len-- > 0) { |
1708 | if (s + sizeof(Quad_t) > strend) |
1709 | aquad = 0; |
1710 | else { |
92d41999 |
1711 | Copy(s, &aquad, 1, Quad_t); |
1109a392 |
1712 | DO_BO_UNPACK(aquad, 64); |
92d41999 |
1713 | s += sizeof(Quad_t); |
fa8ec7c1 |
1714 | } |
1715 | sv = NEWSV(42, 0); |
1716 | if (aquad >= IV_MIN && aquad <= IV_MAX) |
92d41999 |
1717 | sv_setiv(sv, (IV)aquad); |
fa8ec7c1 |
1718 | else |
1719 | sv_setnv(sv, (NV)aquad); |
1720 | PUSHs(sv_2mortal(sv)); |
1721 | } |
1722 | } |
a6ec74c1 |
1723 | break; |
1724 | case 'Q': |
206947d2 |
1725 | along = (strend - s) / sizeof(Uquad_t); |
a6ec74c1 |
1726 | if (len > along) |
1727 | len = along; |
fa8ec7c1 |
1728 | if (checksum) { |
1729 | while (len-- > 0) { |
a6ec74c1 |
1730 | Copy(s, &auquad, 1, Uquad_t); |
1109a392 |
1731 | DO_BO_UNPACK(auquad, 64); |
a6ec74c1 |
1732 | s += sizeof(Uquad_t); |
fa8ec7c1 |
1733 | if (checksum > bits_in_uv) |
1734 | cdouble += (NV)auquad; |
1735 | else |
92d41999 |
1736 | cuv += auquad; |
a6ec74c1 |
1737 | } |
a6ec74c1 |
1738 | } |
fa8ec7c1 |
1739 | else { |
49704364 |
1740 | if (len && unpack_only_one) |
c8f824eb |
1741 | len = 1; |
fa8ec7c1 |
1742 | EXTEND(SP, len); |
1743 | EXTEND_MORTAL(len); |
1744 | while (len-- > 0) { |
1745 | if (s + sizeof(Uquad_t) > strend) |
1746 | auquad = 0; |
1747 | else { |
1748 | Copy(s, &auquad, 1, Uquad_t); |
1109a392 |
1749 | DO_BO_UNPACK(auquad, 64); |
fa8ec7c1 |
1750 | s += sizeof(Uquad_t); |
1751 | } |
1752 | sv = NEWSV(43, 0); |
1753 | if (auquad <= UV_MAX) |
1754 | sv_setuv(sv, (UV)auquad); |
1755 | else |
1756 | sv_setnv(sv, (NV)auquad); |
1757 | PUSHs(sv_2mortal(sv)); |
1758 | } |
1759 | } |
a6ec74c1 |
1760 | break; |
1761 | #endif |
1762 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
1763 | case 'f': |
a6ec74c1 |
1764 | along = (strend - s) / sizeof(float); |
1765 | if (len > along) |
1766 | len = along; |
1767 | if (checksum) { |
1768 | while (len-- > 0) { |
1769 | Copy(s, &afloat, 1, float); |
1109a392 |
1770 | DO_BO_UNPACK_N(afloat, float); |
a6ec74c1 |
1771 | s += sizeof(float); |
1772 | cdouble += afloat; |
1773 | } |
1774 | } |
1775 | else { |
49704364 |
1776 | if (len && unpack_only_one) |
c8f824eb |
1777 | len = 1; |
a6ec74c1 |
1778 | EXTEND(SP, len); |
1779 | EXTEND_MORTAL(len); |
1780 | while (len-- > 0) { |
1781 | Copy(s, &afloat, 1, float); |
1109a392 |
1782 | DO_BO_UNPACK_N(afloat, float); |
a6ec74c1 |
1783 | s += sizeof(float); |
1784 | sv = NEWSV(47, 0); |
1785 | sv_setnv(sv, (NV)afloat); |
1786 | PUSHs(sv_2mortal(sv)); |
1787 | } |
1788 | } |
1789 | break; |
1790 | case 'd': |
a6ec74c1 |
1791 | along = (strend - s) / sizeof(double); |
1792 | if (len > along) |
1793 | len = along; |
1794 | if (checksum) { |
1795 | while (len-- > 0) { |
1796 | Copy(s, &adouble, 1, double); |
1109a392 |
1797 | DO_BO_UNPACK_N(adouble, double); |
a6ec74c1 |
1798 | s += sizeof(double); |
1799 | cdouble += adouble; |
1800 | } |
1801 | } |
1802 | else { |
49704364 |
1803 | if (len && unpack_only_one) |
c8f824eb |
1804 | len = 1; |
a6ec74c1 |
1805 | EXTEND(SP, len); |
1806 | EXTEND_MORTAL(len); |
1807 | while (len-- > 0) { |
1808 | Copy(s, &adouble, 1, double); |
1109a392 |
1809 | DO_BO_UNPACK_N(adouble, double); |
a6ec74c1 |
1810 | s += sizeof(double); |
1811 | sv = NEWSV(48, 0); |
1812 | sv_setnv(sv, (NV)adouble); |
1813 | PUSHs(sv_2mortal(sv)); |
1814 | } |
1815 | } |
1816 | break; |
92d41999 |
1817 | case 'F': |
1818 | along = (strend - s) / NVSIZE; |
1819 | if (len > along) |
1820 | len = along; |
1821 | if (checksum) { |
1822 | while (len-- > 0) { |
1823 | Copy(s, &anv, 1, NV); |
1109a392 |
1824 | DO_BO_UNPACK_N(anv, NV); |
92d41999 |
1825 | s += NVSIZE; |
1826 | cdouble += anv; |
1827 | } |
1828 | } |
1829 | else { |
49704364 |
1830 | if (len && unpack_only_one) |
c8f824eb |
1831 | len = 1; |
92d41999 |
1832 | EXTEND(SP, len); |
1833 | EXTEND_MORTAL(len); |
1834 | while (len-- > 0) { |
1835 | Copy(s, &anv, 1, NV); |
1109a392 |
1836 | DO_BO_UNPACK_N(anv, NV); |
92d41999 |
1837 | s += NVSIZE; |
1838 | sv = NEWSV(48, 0); |
1839 | sv_setnv(sv, anv); |
1840 | PUSHs(sv_2mortal(sv)); |
1841 | } |
1842 | } |
1843 | break; |
1844 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
1845 | case 'D': |
1846 | along = (strend - s) / LONG_DOUBLESIZE; |
1847 | if (len > along) |
1848 | len = along; |
1849 | if (checksum) { |
1850 | while (len-- > 0) { |
1851 | Copy(s, &aldouble, 1, long double); |
1109a392 |
1852 | DO_BO_UNPACK_N(aldouble, long double); |
92d41999 |
1853 | s += LONG_DOUBLESIZE; |
1854 | cdouble += aldouble; |
1855 | } |
1856 | } |
1857 | else { |
49704364 |
1858 | if (len && unpack_only_one) |
c8f824eb |
1859 | len = 1; |
92d41999 |
1860 | EXTEND(SP, len); |
1861 | EXTEND_MORTAL(len); |
1862 | while (len-- > 0) { |
1863 | Copy(s, &aldouble, 1, long double); |
1109a392 |
1864 | DO_BO_UNPACK_N(aldouble, long double); |
92d41999 |
1865 | s += LONG_DOUBLESIZE; |
1866 | sv = NEWSV(48, 0); |
1867 | sv_setnv(sv, (NV)aldouble); |
1868 | PUSHs(sv_2mortal(sv)); |
1869 | } |
1870 | } |
1871 | break; |
1872 | #endif |
a6ec74c1 |
1873 | case 'u': |
1874 | /* MKS: |
1875 | * Initialise the decode mapping. By using a table driven |
1876 | * algorithm, the code will be character-set independent |
1877 | * (and just as fast as doing character arithmetic) |
1878 | */ |
1879 | if (PL_uudmap['M'] == 0) { |
1880 | int i; |
1881 | |
1882 | for (i = 0; i < sizeof(PL_uuemap); i += 1) |
1883 | PL_uudmap[(U8)PL_uuemap[i]] = i; |
1884 | /* |
1885 | * Because ' ' and '`' map to the same value, |
1886 | * we need to decode them both the same. |
1887 | */ |
1888 | PL_uudmap[' '] = 0; |
1889 | } |
1890 | |
1891 | along = (strend - s) * 3 / 4; |
1892 | sv = NEWSV(42, along); |
1893 | if (along) |
1894 | SvPOK_on(sv); |
1895 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
1896 | I32 a, b, c, d; |
1897 | char hunk[4]; |
1898 | |
1899 | hunk[3] = '\0'; |
1900 | len = PL_uudmap[*(U8*)s++] & 077; |
1901 | while (len > 0) { |
1902 | if (s < strend && ISUUCHAR(*s)) |
1903 | a = PL_uudmap[*(U8*)s++] & 077; |
1904 | else |
1905 | a = 0; |
1906 | if (s < strend && ISUUCHAR(*s)) |
1907 | b = PL_uudmap[*(U8*)s++] & 077; |
1908 | else |
1909 | b = 0; |
1910 | if (s < strend && ISUUCHAR(*s)) |
1911 | c = PL_uudmap[*(U8*)s++] & 077; |
1912 | else |
1913 | c = 0; |
1914 | if (s < strend && ISUUCHAR(*s)) |
1915 | d = PL_uudmap[*(U8*)s++] & 077; |
1916 | else |
1917 | d = 0; |
eb160463 |
1918 | hunk[0] = (char)((a << 2) | (b >> 4)); |
1919 | hunk[1] = (char)((b << 4) | (c >> 2)); |
1920 | hunk[2] = (char)((c << 6) | d); |
a6ec74c1 |
1921 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
1922 | len -= 3; |
1923 | } |
1924 | if (*s == '\n') |
1925 | s++; |
92aa5668 |
1926 | else /* possible checksum byte */ |
1927 | if (s + 1 < strend && s[1] == '\n') |
1928 | s += 2; |
a6ec74c1 |
1929 | } |
1930 | XPUSHs(sv_2mortal(sv)); |
1931 | break; |
1932 | } |
49704364 |
1933 | |
a6ec74c1 |
1934 | if (checksum) { |
1935 | sv = NEWSV(42, 0); |
1109a392 |
1936 | if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) || |
92d41999 |
1937 | (checksum > bits_in_uv && |
1109a392 |
1938 | strchr("csSiIlLnNUvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) { |
a6ec74c1 |
1939 | NV trouble; |
1940 | |
fa8ec7c1 |
1941 | adouble = (NV) (1 << (checksum & 15)); |
a6ec74c1 |
1942 | while (checksum >= 16) { |
1943 | checksum -= 16; |
1944 | adouble *= 65536.0; |
1945 | } |
a6ec74c1 |
1946 | while (cdouble < 0.0) |
1947 | cdouble += adouble; |
1948 | cdouble = Perl_modf(cdouble / adouble, &trouble) * adouble; |
1949 | sv_setnv(sv, cdouble); |
1950 | } |
1951 | else { |
fa8ec7c1 |
1952 | if (checksum < bits_in_uv) { |
1953 | UV mask = ((UV)1 << checksum) - 1; |
92d41999 |
1954 | cuv &= mask; |
a6ec74c1 |
1955 | } |
92d41999 |
1956 | sv_setuv(sv, cuv); |
a6ec74c1 |
1957 | } |
1958 | XPUSHs(sv_2mortal(sv)); |
1959 | checksum = 0; |
1960 | } |
49704364 |
1961 | |
1962 | if (symptr->flags & FLAG_SLASH){ |
1963 | if (SP - PL_stack_base - start_sp_offset <= 0) |
1964 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
1965 | if( next_symbol(symptr) ){ |
1966 | if( symptr->howlen == e_number ) |
1967 | Perl_croak(aTHX_ "Count after length/code in unpack" ); |
1968 | if( beyond ){ |
1969 | /* ...end of char buffer then no decent length available */ |
1970 | Perl_croak(aTHX_ "length/code after end of string in unpack" ); |
1971 | } else { |
1972 | /* take top of stack (hope it's numeric) */ |
1973 | len = POPi; |
1974 | if( len < 0 ) |
1975 | Perl_croak(aTHX_ "Negative '/' count in unpack" ); |
1976 | } |
1977 | } else { |
1978 | Perl_croak(aTHX_ "Code missing after '/' in unpack" ); |
1979 | } |
1980 | datumtype = symptr->code; |
1981 | goto redo_switch; |
1982 | } |
a6ec74c1 |
1983 | } |
49704364 |
1984 | |
18529408 |
1985 | if (new_s) |
1986 | *new_s = s; |
1987 | PUTBACK; |
1988 | return SP - PL_stack_base - start_sp_offset; |
1989 | } |
1990 | |
1991 | PP(pp_unpack) |
1992 | { |
1993 | dSP; |
bab9c0ac |
1994 | dPOPPOPssrl; |
18529408 |
1995 | I32 gimme = GIMME_V; |
1996 | STRLEN llen; |
1997 | STRLEN rlen; |
1998 | register char *pat = SvPV(left, llen); |
1999 | #ifdef PACKED_IS_OCTETS |
2000 | /* Packed side is assumed to be octets - so force downgrade if it |
2001 | has been UTF-8 encoded by accident |
2002 | */ |
2003 | register char *s = SvPVbyte(right, rlen); |
2004 | #else |
2005 | register char *s = SvPV(right, rlen); |
2006 | #endif |
2007 | char *strend = s + rlen; |
2008 | register char *patend = pat + llen; |
2009 | register I32 cnt; |
2010 | |
2011 | PUTBACK; |
7accc089 |
2012 | cnt = unpackstring(pat, patend, s, strend, |
49704364 |
2013 | ((gimme == G_SCALAR) ? FLAG_UNPACK_ONLY_ONE : 0) |
2014 | | (DO_UTF8(right) ? FLAG_UNPACK_DO_UTF8 : 0)); |
2015 | |
18529408 |
2016 | SPAGAIN; |
2017 | if ( !cnt && gimme == G_SCALAR ) |
2018 | PUSHs(&PL_sv_undef); |
a6ec74c1 |
2019 | RETURN; |
2020 | } |
2021 | |
2022 | STATIC void |
2023 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) |
2024 | { |
2025 | char hunk[5]; |
2026 | |
2027 | *hunk = PL_uuemap[len]; |
2028 | sv_catpvn(sv, hunk, 1); |
2029 | hunk[4] = '\0'; |
2030 | while (len > 2) { |
2031 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
2032 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; |
2033 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; |
2034 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; |
2035 | sv_catpvn(sv, hunk, 4); |
2036 | s += 3; |
2037 | len -= 3; |
2038 | } |
2039 | if (len > 0) { |
2040 | char r = (len > 1 ? s[1] : '\0'); |
2041 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
2042 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; |
2043 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; |
2044 | hunk[3] = PL_uuemap[0]; |
2045 | sv_catpvn(sv, hunk, 4); |
2046 | } |
2047 | sv_catpvn(sv, "\n", 1); |
2048 | } |
2049 | |
2050 | STATIC SV * |
2051 | S_is_an_int(pTHX_ char *s, STRLEN l) |
2052 | { |
2053 | STRLEN n_a; |
2054 | SV *result = newSVpvn(s, l); |
2055 | char *result_c = SvPV(result, n_a); /* convenience */ |
2056 | char *out = result_c; |
2057 | bool skip = 1; |
2058 | bool ignore = 0; |
2059 | |
2060 | while (*s) { |
2061 | switch (*s) { |
2062 | case ' ': |
2063 | break; |
2064 | case '+': |
2065 | if (!skip) { |
2066 | SvREFCNT_dec(result); |
2067 | return (NULL); |
2068 | } |
2069 | break; |
2070 | case '0': |
2071 | case '1': |
2072 | case '2': |
2073 | case '3': |
2074 | case '4': |
2075 | case '5': |
2076 | case '6': |
2077 | case '7': |
2078 | case '8': |
2079 | case '9': |
2080 | skip = 0; |
2081 | if (!ignore) { |
2082 | *(out++) = *s; |
2083 | } |
2084 | break; |
2085 | case '.': |
2086 | ignore = 1; |
2087 | break; |
2088 | default: |
2089 | SvREFCNT_dec(result); |
2090 | return (NULL); |
2091 | } |
2092 | s++; |
2093 | } |
2094 | *(out++) = '\0'; |
2095 | SvCUR_set(result, out - result_c); |
2096 | return (result); |
2097 | } |
2098 | |
2099 | /* pnum must be '\0' terminated */ |
2100 | STATIC int |
2101 | S_div128(pTHX_ SV *pnum, bool *done) |
2102 | { |
2103 | STRLEN len; |
2104 | char *s = SvPV(pnum, len); |
2105 | int m = 0; |
2106 | int r = 0; |
2107 | char *t = s; |
2108 | |
2109 | *done = 1; |
2110 | while (*t) { |
2111 | int i; |
2112 | |
2113 | i = m * 10 + (*t - '0'); |
2114 | m = i & 0x7F; |
2115 | r = (i >> 7); /* r < 10 */ |
2116 | if (r) { |
2117 | *done = 0; |
2118 | } |
2119 | *(t++) = '0' + r; |
2120 | } |
2121 | *(t++) = '\0'; |
2122 | SvCUR_set(pnum, (STRLEN) (t - s)); |
2123 | return (m); |
2124 | } |
2125 | |
49704364 |
2126 | |
a6ec74c1 |
2127 | |
18529408 |
2128 | /* |
2129 | =for apidoc pack_cat |
2130 | |
7accc089 |
2131 | The engine implementing pack() Perl function. Note: parameters next_in_list and |
2132 | flags are not used. This call should not be used; use packlist instead. |
18529408 |
2133 | |
2134 | =cut */ |
2135 | |
49704364 |
2136 | |
18529408 |
2137 | void |
2138 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) |
a6ec74c1 |
2139 | { |
49704364 |
2140 | tempsym_t sym = { 0 }; |
2141 | sym.patptr = pat; |
2142 | sym.patend = patend; |
7accc089 |
2143 | sym.flags = FLAG_PACK; |
2144 | |
2145 | (void)pack_rec( cat, &sym, beglist, endlist ); |
2146 | } |
2147 | |
2148 | |
2149 | /* |
2150 | =for apidoc packlist |
2151 | |
2152 | The engine implementing pack() Perl function. |
2153 | |
2154 | =cut */ |
2155 | |
2156 | |
2157 | void |
2158 | Perl_packlist(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist ) |
2159 | { |
2160 | tempsym_t sym = { 0 }; |
2161 | sym.patptr = pat; |
2162 | sym.patend = patend; |
2163 | sym.flags = FLAG_PACK; |
49704364 |
2164 | |
2165 | (void)pack_rec( cat, &sym, beglist, endlist ); |
2166 | } |
2167 | |
2168 | |
2169 | STATIC |
2170 | SV ** |
2171 | S_pack_rec(pTHX_ SV *cat, register tempsym_t* symptr, register SV **beglist, SV **endlist ) |
2172 | { |
a6ec74c1 |
2173 | register I32 items; |
2174 | STRLEN fromlen; |
49704364 |
2175 | register I32 len = 0; |
a6ec74c1 |
2176 | SV *fromstr; |
2177 | /*SUPPRESS 442*/ |
2178 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; |
2179 | static char *space10 = " "; |
49704364 |
2180 | bool found; |
a6ec74c1 |
2181 | |
2182 | /* These must not be in registers: */ |
2183 | char achar; |
2184 | I16 ashort; |
2185 | int aint; |
2186 | unsigned int auint; |
2187 | I32 along; |
2188 | U32 aulong; |
92d41999 |
2189 | IV aiv; |
2190 | UV auv; |
2191 | NV anv; |
2192 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
2193 | long double aldouble; |
2194 | #endif |
a6ec74c1 |
2195 | #ifdef HAS_QUAD |
2196 | Quad_t aquad; |
2197 | Uquad_t auquad; |
2198 | #endif |
2199 | char *aptr; |
2200 | float afloat; |
2201 | double adouble; |
49704364 |
2202 | int strrelbeg = SvCUR(cat); |
2203 | tempsym_t lookahead; |
a6ec74c1 |
2204 | |
18529408 |
2205 | items = endlist - beglist; |
49704364 |
2206 | found = next_symbol( symptr ); |
2207 | |
18529408 |
2208 | #ifndef PACKED_IS_OCTETS |
49704364 |
2209 | if (symptr->level == 0 && found && symptr->code == 'U' ){ |
18529408 |
2210 | SvUTF8_on(cat); |
49704364 |
2211 | } |
18529408 |
2212 | #endif |
49704364 |
2213 | |
2214 | while (found) { |
a6ec74c1 |
2215 | SV *lengthcode = Nullsv; |
18529408 |
2216 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
49704364 |
2217 | |
2218 | I32 datumtype = symptr->code; |
2219 | howlen_t howlen; |
2220 | |
2221 | switch( howlen = symptr->howlen ){ |
2222 | case e_no_len: |
2223 | case e_number: |
2224 | len = symptr->length; |
2225 | break; |
2226 | case e_star: |
1109a392 |
2227 | len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? 0 : items; |
49704364 |
2228 | break; |
2229 | } |
2230 | |
2231 | /* Look ahead for next symbol. Do we have code/code? */ |
2232 | lookahead = *symptr; |
2233 | found = next_symbol(&lookahead); |
2234 | if ( symptr->flags & FLAG_SLASH ) { |
2235 | if (found){ |
2236 | if ( 0 == strchr( "aAZ", lookahead.code ) || |
2237 | e_star != lookahead.howlen ) |
2238 | Perl_croak(aTHX_ "'/' must be followed by 'a*', 'A*' or 'Z*' in pack"); |
2239 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 |
18529408 |
2240 | ? *beglist : &PL_sv_no) |
49704364 |
2241 | + (lookahead.code == 'Z' ? 1 : 0))); |
2242 | } else { |
2243 | Perl_croak(aTHX_ "Code missing after '/' in pack"); |
2244 | } |
a6ec74c1 |
2245 | } |
49704364 |
2246 | |
1109a392 |
2247 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
2248 | default: |
1109a392 |
2249 | Perl_croak(aTHX_ "Invalid type '%c' in pack", (int)TYPE_NO_MODIFIERS(datumtype)); |
a6ec74c1 |
2250 | case '%': |
49704364 |
2251 | Perl_croak(aTHX_ "'%%' may not be used in pack"); |
a6ec74c1 |
2252 | case '@': |
49704364 |
2253 | len += strrelbeg - SvCUR(cat); |
a6ec74c1 |
2254 | if (len > 0) |
2255 | goto grow; |
2256 | len = -len; |
2257 | if (len > 0) |
2258 | goto shrink; |
2259 | break; |
18529408 |
2260 | case '(': |
2261 | { |
49704364 |
2262 | tempsym_t savsym = *symptr; |
2263 | symptr->patend = savsym.grpend; |
2264 | symptr->level++; |
18529408 |
2265 | while (len--) { |
49704364 |
2266 | symptr->patptr = savsym.grpbeg; |
2267 | beglist = pack_rec(cat, symptr, beglist, endlist ); |
2268 | if (savsym.howlen == e_star && beglist == endlist) |
18529408 |
2269 | break; /* No way to continue */ |
2270 | } |
49704364 |
2271 | lookahead.flags = symptr->flags; |
2272 | *symptr = savsym; |
18529408 |
2273 | break; |
2274 | } |
62f95557 |
2275 | case 'X' | TYPE_IS_SHRIEKING: |
2276 | if (!len) /* Avoid division by 0 */ |
2277 | len = 1; |
2278 | len = (SvCUR(cat)) % len; |
2279 | /* FALL THROUGH */ |
a6ec74c1 |
2280 | case 'X': |
2281 | shrink: |
eb160463 |
2282 | if ((I32)SvCUR(cat) < len) |
49704364 |
2283 | Perl_croak(aTHX_ "'X' outside of string in pack"); |
a6ec74c1 |
2284 | SvCUR(cat) -= len; |
2285 | *SvEND(cat) = '\0'; |
2286 | break; |
62f95557 |
2287 | case 'x' | TYPE_IS_SHRIEKING: |
2288 | if (!len) /* Avoid division by 0 */ |
2289 | len = 1; |
2290 | aint = (SvCUR(cat)) % len; |
2291 | if (aint) /* Other portable ways? */ |
2292 | len = len - aint; |
2293 | else |
2294 | len = 0; |
2295 | /* FALL THROUGH */ |
49704364 |
2296 | |
a6ec74c1 |
2297 | case 'x': |
2298 | grow: |
2299 | while (len >= 10) { |
2300 | sv_catpvn(cat, null10, 10); |
2301 | len -= 10; |
2302 | } |
2303 | sv_catpvn(cat, null10, len); |
2304 | break; |
2305 | case 'A': |
2306 | case 'Z': |
2307 | case 'a': |
2308 | fromstr = NEXTFROM; |
2309 | aptr = SvPV(fromstr, fromlen); |
49704364 |
2310 | if (howlen == e_star) { |
a6ec74c1 |
2311 | len = fromlen; |
2312 | if (datumtype == 'Z') |
2313 | ++len; |
2314 | } |
eb160463 |
2315 | if ((I32)fromlen >= len) { |
a6ec74c1 |
2316 | sv_catpvn(cat, aptr, len); |
2317 | if (datumtype == 'Z') |
2318 | *(SvEND(cat)-1) = '\0'; |
2319 | } |
2320 | else { |
2321 | sv_catpvn(cat, aptr, fromlen); |
2322 | len -= fromlen; |
2323 | if (datumtype == 'A') { |
2324 | while (len >= 10) { |
2325 | sv_catpvn(cat, space10, 10); |
2326 | len -= 10; |
2327 | } |
2328 | sv_catpvn(cat, space10, len); |
2329 | } |
2330 | else { |
2331 | while (len >= 10) { |
2332 | sv_catpvn(cat, null10, 10); |
2333 | len -= 10; |
2334 | } |
2335 | sv_catpvn(cat, null10, len); |
2336 | } |
2337 | } |
2338 | break; |
2339 | case 'B': |
2340 | case 'b': |
2341 | { |
2342 | register char *str; |
2343 | I32 saveitems; |
2344 | |
2345 | fromstr = NEXTFROM; |
2346 | saveitems = items; |
2347 | str = SvPV(fromstr, fromlen); |
49704364 |
2348 | if (howlen == e_star) |
a6ec74c1 |
2349 | len = fromlen; |
2350 | aint = SvCUR(cat); |
2351 | SvCUR(cat) += (len+7)/8; |
2352 | SvGROW(cat, SvCUR(cat) + 1); |
2353 | aptr = SvPVX(cat) + aint; |
eb160463 |
2354 | if (len > (I32)fromlen) |
a6ec74c1 |
2355 | len = fromlen; |
2356 | aint = len; |
2357 | items = 0; |
2358 | if (datumtype == 'B') { |
2359 | for (len = 0; len++ < aint;) { |
2360 | items |= *str++ & 1; |
2361 | if (len & 7) |
2362 | items <<= 1; |
2363 | else { |
2364 | *aptr++ = items & 0xff; |
2365 | items = 0; |
2366 | } |
2367 | } |
2368 | } |
2369 | else { |
2370 | for (len = 0; len++ < aint;) { |
2371 | if (*str++ & 1) |
2372 | items |= 128; |
2373 | if (len & 7) |
2374 | items >>= 1; |
2375 | else { |
2376 | *aptr++ = items & 0xff; |
2377 | items = 0; |
2378 | } |
2379 | } |
2380 | } |
2381 | if (aint & 7) { |
2382 | if (datumtype == 'B') |
2383 | items <<= 7 - (aint & 7); |
2384 | else |
2385 | items >>= 7 - (aint & 7); |
2386 | *aptr++ = items & 0xff; |
2387 | } |
2388 | str = SvPVX(cat) + SvCUR(cat); |
2389 | while (aptr <= str) |
2390 | *aptr++ = '\0'; |
2391 | |
2392 | items = saveitems; |
2393 | } |
2394 | break; |
2395 | case 'H': |
2396 | case 'h': |
2397 | { |
2398 | register char *str; |
2399 | I32 saveitems; |
2400 | |
2401 | fromstr = NEXTFROM; |
2402 | saveitems = items; |
2403 | str = SvPV(fromstr, fromlen); |
49704364 |
2404 | if (howlen == e_star) |
a6ec74c1 |
2405 | len = fromlen; |
2406 | aint = SvCUR(cat); |
2407 | SvCUR(cat) += (len+1)/2; |
2408 | SvGROW(cat, SvCUR(cat) + 1); |
2409 | aptr = SvPVX(cat) + aint; |
eb160463 |
2410 | if (len > (I32)fromlen) |
a6ec74c1 |
2411 | len = fromlen; |
2412 | aint = len; |
2413 | items = 0; |
2414 | if (datumtype == 'H') { |
2415 | for (len = 0; len++ < aint;) { |
2416 | if (isALPHA(*str)) |
2417 | items |= ((*str++ & 15) + 9) & 15; |
2418 | else |
2419 | items |= *str++ & 15; |
2420 | if (len & 1) |
2421 | items <<= 4; |
2422 | else { |
2423 | *aptr++ = items & 0xff; |
2424 | items = 0; |
2425 | } |
2426 | } |
2427 | } |
2428 | else { |
2429 | for (len = 0; len++ < aint;) { |
2430 | if (isALPHA(*str)) |
2431 | items |= (((*str++ & 15) + 9) & 15) << 4; |
2432 | else |
2433 | items |= (*str++ & 15) << 4; |
2434 | if (len & 1) |
2435 | items >>= 4; |
2436 | else { |
2437 | *aptr++ = items & 0xff; |
2438 | items = 0; |
2439 | } |
2440 | } |
2441 | } |
2442 | if (aint & 1) |
2443 | *aptr++ = items & 0xff; |
2444 | str = SvPVX(cat) + SvCUR(cat); |
2445 | while (aptr <= str) |
2446 | *aptr++ = '\0'; |
2447 | |
2448 | items = saveitems; |
2449 | } |
2450 | break; |
2451 | case 'C': |
2452 | case 'c': |
2453 | while (len-- > 0) { |
2454 | fromstr = NEXTFROM; |
1109a392 |
2455 | switch (TYPE_NO_MODIFIERS(datumtype)) { |
a6ec74c1 |
2456 | case 'C': |
2457 | aint = SvIV(fromstr); |
2458 | if ((aint < 0 || aint > 255) && |
2459 | ckWARN(WARN_PACK)) |
9014280d |
2460 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2461 | "Character in 'C' format wrapped in pack"); |
a6ec74c1 |
2462 | achar = aint & 255; |
2463 | sv_catpvn(cat, &achar, sizeof(char)); |
2464 | break; |
2465 | case 'c': |
2466 | aint = SvIV(fromstr); |
2467 | if ((aint < -128 || aint > 127) && |
2468 | ckWARN(WARN_PACK)) |
9014280d |
2469 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2470 | "Character in 'c' format wrapped in pack" ); |
a6ec74c1 |
2471 | achar = aint & 255; |
2472 | sv_catpvn(cat, &achar, sizeof(char)); |
2473 | break; |
2474 | } |
2475 | } |
2476 | break; |
2477 | case 'U': |
2478 | while (len-- > 0) { |
2479 | fromstr = NEXTFROM; |
e87322b2 |
2480 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
a6ec74c1 |
2481 | SvGROW(cat, SvCUR(cat) + UTF8_MAXLEN + 1); |
52ea3e69 |
2482 | SvCUR_set(cat, |
2483 | (char*)uvchr_to_utf8_flags((U8*)SvEND(cat), |
2484 | auint, |
2485 | ckWARN(WARN_UTF8) ? |
2486 | 0 : UNICODE_ALLOW_ANY) |
2487 | - SvPVX(cat)); |
a6ec74c1 |
2488 | } |
2489 | *SvEND(cat) = '\0'; |
2490 | break; |
2491 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
2492 | case 'f': |
a6ec74c1 |
2493 | while (len-- > 0) { |
2494 | fromstr = NEXTFROM; |
5cdb9e01 |
2495 | #ifdef __VOS__ |
2496 | /* VOS does not automatically map a floating-point overflow |
2497 | during conversion from double to float into infinity, so we |
2498 | do it by hand. This code should either be generalized for |
2499 | any OS that needs it, or removed if and when VOS implements |
2500 | posix-976 (suggestion to support mapping to infinity). |
2501 | Paul.Green@stratus.com 02-04-02. */ |
2502 | if (SvNV(fromstr) > FLT_MAX) |
2503 | afloat = _float_constants[0]; /* single prec. inf. */ |
2504 | else if (SvNV(fromstr) < -FLT_MAX) |
2505 | afloat = _float_constants[0]; /* single prec. inf. */ |
2506 | else afloat = (float)SvNV(fromstr); |
2507 | #else |
baf3cf9c |
2508 | # if defined(VMS) && !defined(__IEEE_FP) |
2509 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
2510 | * on Alpha; fake it if we don't have them. |
2511 | */ |
2512 | if (SvNV(fromstr) > FLT_MAX) |
2513 | afloat = FLT_MAX; |
2514 | else if (SvNV(fromstr) < -FLT_MAX) |
2515 | afloat = -FLT_MAX; |
2516 | else afloat = (float)SvNV(fromstr); |
2517 | # else |
a6ec74c1 |
2518 | afloat = (float)SvNV(fromstr); |
baf3cf9c |
2519 | # endif |
5cdb9e01 |
2520 | #endif |
1109a392 |
2521 | DO_BO_PACK_N(afloat, float); |
a6ec74c1 |
2522 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
2523 | } |
2524 | break; |
2525 | case 'd': |
a6ec74c1 |
2526 | while (len-- > 0) { |
2527 | fromstr = NEXTFROM; |
5cdb9e01 |
2528 | #ifdef __VOS__ |
2529 | /* VOS does not automatically map a floating-point overflow |
2530 | during conversion from long double to double into infinity, |
2531 | so we do it by hand. This code should either be generalized |
2532 | for any OS that needs it, or removed if and when VOS |
2533 | implements posix-976 (suggestion to support mapping to |
2534 | infinity). Paul.Green@stratus.com 02-04-02. */ |
2535 | if (SvNV(fromstr) > DBL_MAX) |
2536 | adouble = _double_constants[0]; /* double prec. inf. */ |
2537 | else if (SvNV(fromstr) < -DBL_MAX) |
2538 | adouble = _double_constants[0]; /* double prec. inf. */ |
2539 | else adouble = (double)SvNV(fromstr); |
2540 | #else |
baf3cf9c |
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) > DBL_MAX) |
2546 | adouble = DBL_MAX; |
2547 | else if (SvNV(fromstr) < -DBL_MAX) |
2548 | adouble = -DBL_MAX; |
2549 | else adouble = (double)SvNV(fromstr); |
2550 | # else |
a6ec74c1 |
2551 | adouble = (double)SvNV(fromstr); |
baf3cf9c |
2552 | # endif |
5cdb9e01 |
2553 | #endif |
1109a392 |
2554 | DO_BO_PACK_N(adouble, double); |
a6ec74c1 |
2555 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
2556 | } |
2557 | break; |
92d41999 |
2558 | case 'F': |
1109a392 |
2559 | Zero(&anv, 1, NV); /* can be long double with unused bits */ |
92d41999 |
2560 | while (len-- > 0) { |
2561 | fromstr = NEXTFROM; |
2562 | anv = SvNV(fromstr); |
1109a392 |
2563 | DO_BO_PACK_N(anv, NV); |
92d41999 |
2564 | sv_catpvn(cat, (char *)&anv, NVSIZE); |
2565 | } |
2566 | break; |
2567 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
2568 | case 'D': |
1109a392 |
2569 | /* long doubles can have unused bits, which may be nonzero */ |
2570 | Zero(&aldouble, 1, long double); |
92d41999 |
2571 | while (len-- > 0) { |
2572 | fromstr = NEXTFROM; |
2573 | aldouble = (long double)SvNV(fromstr); |
1109a392 |
2574 | DO_BO_PACK_N(aldouble, long double); |
92d41999 |
2575 | sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE); |
2576 | } |
2577 | break; |
2578 | #endif |
068bd2e7 |
2579 | case 'n' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2580 | case 'n': |
2581 | while (len-- > 0) { |
2582 | fromstr = NEXTFROM; |
2583 | ashort = (I16)SvIV(fromstr); |
2584 | #ifdef HAS_HTONS |
2585 | ashort = PerlSock_htons(ashort); |
2586 | #endif |
2587 | CAT16(cat, &ashort); |
2588 | } |
2589 | break; |
068bd2e7 |
2590 | case 'v' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2591 | case 'v': |
2592 | while (len-- > 0) { |
2593 | fromstr = NEXTFROM; |
2594 | ashort = (I16)SvIV(fromstr); |
2595 | #ifdef HAS_HTOVS |
2596 | ashort = htovs(ashort); |
2597 | #endif |
2598 | CAT16(cat, &ashort); |
2599 | } |
2600 | break; |
49704364 |
2601 | case 'S' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2602 | #if SHORTSIZE != SIZE16 |
49704364 |
2603 | { |
a6ec74c1 |
2604 | unsigned short aushort; |
2605 | |
2606 | while (len-- > 0) { |
2607 | fromstr = NEXTFROM; |
2608 | aushort = SvUV(fromstr); |
1109a392 |
2609 | DO_BO_PACK(aushort, s); |
a6ec74c1 |
2610 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
2611 | } |
49704364 |
2612 | } |
2613 | break; |
2614 | #else |
2615 | /* Fall through! */ |
a6ec74c1 |
2616 | #endif |
49704364 |
2617 | case 'S': |
a6ec74c1 |
2618 | { |
2619 | U16 aushort; |
2620 | |
2621 | while (len-- > 0) { |
2622 | fromstr = NEXTFROM; |
2623 | aushort = (U16)SvUV(fromstr); |
1109a392 |
2624 | DO_BO_PACK(aushort, 16); |
a6ec74c1 |
2625 | CAT16(cat, &aushort); |
2626 | } |
2627 | |
2628 | } |
2629 | break; |
49704364 |
2630 | case 's' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2631 | #if SHORTSIZE != SIZE16 |
49704364 |
2632 | { |
a6ec74c1 |
2633 | short ashort; |
2634 | |
2635 | while (len-- > 0) { |
2636 | fromstr = NEXTFROM; |
2637 | ashort = SvIV(fromstr); |
1109a392 |
2638 | DO_BO_PACK(ashort, s); |
a6ec74c1 |
2639 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
2640 | } |
2641 | } |
49704364 |
2642 | break; |
2643 | #else |
2644 | /* Fall through! */ |
a6ec74c1 |
2645 | #endif |
49704364 |
2646 | case 's': |
2647 | while (len-- > 0) { |
2648 | fromstr = NEXTFROM; |
2649 | ashort = (I16)SvIV(fromstr); |
1109a392 |
2650 | DO_BO_PACK(ashort, 16); |
49704364 |
2651 | CAT16(cat, &ashort); |
a6ec74c1 |
2652 | } |
2653 | break; |
2654 | case 'I': |
49704364 |
2655 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2656 | while (len-- > 0) { |
2657 | fromstr = NEXTFROM; |
2658 | auint = SvUV(fromstr); |
1109a392 |
2659 | DO_BO_PACK(auint, i); |
a6ec74c1 |
2660 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
2661 | } |
2662 | break; |
92d41999 |
2663 | case 'j': |
2664 | while (len-- > 0) { |
2665 | fromstr = NEXTFROM; |
2666 | aiv = SvIV(fromstr); |
1109a392 |
2667 | #if IVSIZE == INTSIZE |
2668 | DO_BO_PACK(aiv, i); |
2669 | #elif IVSIZE == LONGSIZE |
2670 | DO_BO_PACK(aiv, l); |
2671 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
2672 | DO_BO_PACK(aiv, 64); |
2673 | #endif |
92d41999 |
2674 | sv_catpvn(cat, (char*)&aiv, IVSIZE); |
2675 | } |
2676 | break; |
2677 | case 'J': |
2678 | while (len-- > 0) { |
2679 | fromstr = NEXTFROM; |
2680 | auv = SvUV(fromstr); |
1109a392 |
2681 | #if UVSIZE == INTSIZE |
2682 | DO_BO_PACK(auv, i); |
2683 | #elif UVSIZE == LONGSIZE |
2684 | DO_BO_PACK(auv, l); |
2685 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
2686 | DO_BO_PACK(auv, 64); |
2687 | #endif |
92d41999 |
2688 | sv_catpvn(cat, (char*)&auv, UVSIZE); |
2689 | } |
2690 | break; |
a6ec74c1 |
2691 | case 'w': |
2692 | while (len-- > 0) { |
2693 | fromstr = NEXTFROM; |
15e9f109 |
2694 | anv = SvNV(fromstr); |
a6ec74c1 |
2695 | |
15e9f109 |
2696 | if (anv < 0) |
49704364 |
2697 | Perl_croak(aTHX_ "Cannot compress negative numbers in pack"); |
a6ec74c1 |
2698 | |
196b62db |
2699 | /* 0xFFFFFFFFFFFFFFFF may cast to 18446744073709551616.0, |
2700 | which is == UV_MAX_P1. IOK is fine (instead of UV_only), as |
2701 | any negative IVs will have already been got by the croak() |
2702 | above. IOK is untrue for fractions, so we test them |
2703 | against UV_MAX_P1. */ |
15e9f109 |
2704 | if (SvIOK(fromstr) || anv < UV_MAX_P1) |
a6ec74c1 |
2705 | { |
7c1b502b |
2706 | char buf[(sizeof(UV)*8)/7+1]; |
a6ec74c1 |
2707 | char *in = buf + sizeof(buf); |
196b62db |
2708 | UV auv = SvUV(fromstr); |
a6ec74c1 |
2709 | |
2710 | do { |
eb160463 |
2711 | *--in = (char)((auv & 0x7f) | 0x80); |
a6ec74c1 |
2712 | auv >>= 7; |
2713 | } while (auv); |
2714 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2715 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2716 | } |
2717 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ |
2718 | char *from, *result, *in; |
2719 | SV *norm; |
2720 | STRLEN len; |
2721 | bool done; |
2722 | |
2723 | /* Copy string and check for compliance */ |
2724 | from = SvPV(fromstr, len); |
2725 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2726 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
a6ec74c1 |
2727 | |
2728 | New('w', result, len, char); |
2729 | in = result + len; |
2730 | done = FALSE; |
2731 | while (!done) |
2732 | *--in = div128(norm, &done) | 0x80; |
2733 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2734 | sv_catpvn(cat, in, (result + len) - in); |
2735 | Safefree(result); |
2736 | SvREFCNT_dec(norm); /* free norm */ |
2737 | } |
2738 | else if (SvNOKp(fromstr)) { |
0258719b |
2739 | /* 10**NV_MAX_10_EXP is the largest power of 10 |
2740 | so 10**(NV_MAX_10_EXP+1) is definately unrepresentable |
2741 | given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x: |
2742 | x = (NV_MAX_10_EXP+1) * log (10) / log (128) |
2743 | And with that many bytes only Inf can overflow. |
8f8d40ab |
2744 | Some C compilers are strict about integral constant |
2745 | expressions so we conservatively divide by a slightly |
2746 | smaller integer instead of multiplying by the exact |
2747 | floating-point value. |
0258719b |
2748 | */ |
2749 | #ifdef NV_MAX_10_EXP |
8f8d40ab |
2750 | /* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */ |
2751 | char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */ |
0258719b |
2752 | #else |
8f8d40ab |
2753 | /* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */ |
2754 | char buf[1 + (int)((308 + 1) / 2)]; /* valid C */ |
0258719b |
2755 | #endif |
a6ec74c1 |
2756 | char *in = buf + sizeof(buf); |
2757 | |
15e9f109 |
2758 | anv = Perl_floor(anv); |
a6ec74c1 |
2759 | do { |
15e9f109 |
2760 | NV next = Perl_floor(anv / 128); |
a6ec74c1 |
2761 | if (in <= buf) /* this cannot happen ;-) */ |
49704364 |
2762 | Perl_croak(aTHX_ "Cannot compress integer in pack"); |
0258719b |
2763 | *--in = (unsigned char)(anv - (next * 128)) | 0x80; |
15e9f109 |
2764 | anv = next; |
2765 | } while (anv > 0); |
a6ec74c1 |
2766 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2767 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2768 | } |
735b914b |
2769 | else { |
2770 | char *from, *result, *in; |
2771 | SV *norm; |
2772 | STRLEN len; |
2773 | bool done; |
2774 | |
2775 | /* Copy string and check for compliance */ |
2776 | from = SvPV(fromstr, len); |
2777 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2778 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
735b914b |
2779 | |
2780 | New('w', result, len, char); |
2781 | in = result + len; |
2782 | done = FALSE; |
2783 | while (!done) |
2784 | *--in = div128(norm, &done) | 0x80; |
2785 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2786 | sv_catpvn(cat, in, (result + len) - in); |
2787 | Safefree(result); |
2788 | SvREFCNT_dec(norm); /* free norm */ |
2789 | } |
a6ec74c1 |
2790 | } |
2791 | break; |
2792 | case 'i': |
49704364 |
2793 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2794 | while (len-- > 0) { |
2795 | fromstr = NEXTFROM; |
2796 | aint = SvIV(fromstr); |
1109a392 |
2797 | DO_BO_PACK(aint, i); |
a6ec74c1 |
2798 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
2799 | } |
2800 | break; |
068bd2e7 |
2801 | case 'N' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2802 | case 'N': |
2803 | while (len-- > 0) { |
2804 | fromstr = NEXTFROM; |
2805 | aulong = SvUV(fromstr); |
2806 | #ifdef HAS_HTONL |
2807 | aulong = PerlSock_htonl(aulong); |
2808 | #endif |
2809 | CAT32(cat, &aulong); |
2810 | } |
2811 | break; |
068bd2e7 |
2812 | case 'V' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2813 | case 'V': |
2814 | while (len-- > 0) { |
2815 | fromstr = NEXTFROM; |
2816 | aulong = SvUV(fromstr); |
2817 | #ifdef HAS_HTOVL |
2818 | aulong = htovl(aulong); |
2819 | #endif |
2820 | CAT32(cat, &aulong); |
2821 | } |
2822 | break; |
49704364 |
2823 | case 'L' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2824 | #if LONGSIZE != SIZE32 |
49704364 |
2825 | { |
a6ec74c1 |
2826 | unsigned long aulong; |
2827 | |
2828 | while (len-- > 0) { |
2829 | fromstr = NEXTFROM; |
2830 | aulong = SvUV(fromstr); |
1109a392 |
2831 | DO_BO_PACK(aulong, l); |
a6ec74c1 |
2832 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
2833 | } |
2834 | } |
49704364 |
2835 | break; |
2836 | #else |
2837 | /* Fall though! */ |
a6ec74c1 |
2838 | #endif |
49704364 |
2839 | case 'L': |
a6ec74c1 |
2840 | { |
2841 | while (len-- > 0) { |
2842 | fromstr = NEXTFROM; |
2843 | aulong = SvUV(fromstr); |
1109a392 |
2844 | DO_BO_PACK(aulong, 32); |
a6ec74c1 |
2845 | CAT32(cat, &aulong); |
2846 | } |
2847 | } |
2848 | break; |
49704364 |
2849 | case 'l' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2850 | #if LONGSIZE != SIZE32 |
49704364 |
2851 | { |
a6ec74c1 |
2852 | long along; |
2853 | |
2854 | while (len-- > 0) { |
2855 | fromstr = NEXTFROM; |
2856 | along = SvIV(fromstr); |
1109a392 |
2857 | DO_BO_PACK(along, l); |
a6ec74c1 |
2858 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
2859 | } |
2860 | } |
49704364 |
2861 | break; |
2862 | #else |
2863 | /* Fall though! */ |
a6ec74c1 |
2864 | #endif |
49704364 |
2865 | case 'l': |
2866 | while (len-- > 0) { |
2867 | fromstr = NEXTFROM; |
2868 | along = SvIV(fromstr); |
1109a392 |
2869 | DO_BO_PACK(along, 32); |
49704364 |
2870 | CAT32(cat, &along); |
a6ec74c1 |
2871 | } |
2872 | break; |
2873 | #ifdef HAS_QUAD |
2874 | case 'Q': |
2875 | while (len-- > 0) { |
2876 | fromstr = NEXTFROM; |
2877 | auquad = (Uquad_t)SvUV(fromstr); |
1109a392 |
2878 | DO_BO_PACK(auquad, 64); |
a6ec74c1 |
2879 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
2880 | } |
2881 | break; |
2882 | case 'q': |
2883 | while (len-- > 0) { |
2884 | fromstr = NEXTFROM; |
2885 | aquad = (Quad_t)SvIV(fromstr); |
1109a392 |
2886 | DO_BO_PACK(aquad, 64); |
a6ec74c1 |
2887 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
2888 | } |
2889 | break; |
2890 | #endif |
2891 | case 'P': |
2892 | len = 1; /* assume SV is correct length */ |
49704364 |
2893 | /* Fall through! */ |
a6ec74c1 |
2894 | case 'p': |
2895 | while (len-- > 0) { |
2896 | fromstr = NEXTFROM; |
2897 | if (fromstr == &PL_sv_undef) |
2898 | aptr = NULL; |
2899 | else { |
2900 | STRLEN n_a; |
2901 | /* XXX better yet, could spirit away the string to |
2902 | * a safe spot and hang on to it until the result |
2903 | * of pack() (and all copies of the result) are |
2904 | * gone. |
2905 | */ |
2906 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) |
2907 | || (SvPADTMP(fromstr) |
2908 | && !SvREADONLY(fromstr)))) |
2909 | { |
9014280d |
2910 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
a6ec74c1 |
2911 | "Attempt to pack pointer to temporary value"); |
2912 | } |
2913 | if (SvPOK(fromstr) || SvNIOK(fromstr)) |
2914 | aptr = SvPV(fromstr,n_a); |
2915 | else |
2916 | aptr = SvPV_force(fromstr,n_a); |
2917 | } |
1109a392 |
2918 | DO_BO_PACK_P(aptr); |
a6ec74c1 |
2919 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
2920 | } |
2921 | break; |
2922 | case 'u': |
2923 | fromstr = NEXTFROM; |
2924 | aptr = SvPV(fromstr, fromlen); |
2925 | SvGROW(cat, fromlen * 4 / 3); |
19c9db5e |
2926 | if (len <= 2) |
a6ec74c1 |
2927 | len = 45; |
2928 | else |
2929 | len = len / 3 * 3; |
2930 | while (fromlen > 0) { |
2931 | I32 todo; |
2932 | |
eb160463 |
2933 | if ((I32)fromlen > len) |
a6ec74c1 |
2934 | todo = len; |
2935 | else |
2936 | todo = fromlen; |
2937 | doencodes(cat, aptr, todo); |
2938 | fromlen -= todo; |
2939 | aptr += todo; |
2940 | } |
2941 | break; |
2942 | } |
49704364 |
2943 | *symptr = lookahead; |
a6ec74c1 |
2944 | } |
49704364 |
2945 | return beglist; |
18529408 |
2946 | } |
2947 | #undef NEXTFROM |
2948 | |
2949 | |
2950 | PP(pp_pack) |
2951 | { |
2952 | dSP; dMARK; dORIGMARK; dTARGET; |
2953 | register SV *cat = TARG; |
2954 | STRLEN fromlen; |
2955 | register char *pat = SvPVx(*++MARK, fromlen); |
2956 | register char *patend = pat + fromlen; |
2957 | |
2958 | MARK++; |
2959 | sv_setpvn(cat, "", 0); |
2960 | |
7accc089 |
2961 | packlist(cat, pat, patend, MARK, SP + 1); |
18529408 |
2962 | |
a6ec74c1 |
2963 | SvSETMAGIC(cat); |
2964 | SP = ORIGMARK; |
2965 | PUSHs(cat); |
2966 | RETURN; |
2967 | } |
a6ec74c1 |
2968 | |