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