Commit | Line | Data |
a6ec74c1 |
1 | /* pp_pack.c |
2 | * |
be3c0a43 |
3 | * Copyright (c) 1991-2002, Larry Wall |
a6ec74c1 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
d31a8517 |
10 | /* |
11 | * He still hopefully carried some of his gear in his pack: a small tinder-box, |
12 | * two small shallow pans, the smaller fitting into the larger; inside them a |
13 | * wooden spoon, a short two-pronged fork and some skewers were stowed; and |
14 | * hidden at the bottom of the pack in a flat wooden box a dwindling treasure, |
15 | * some salt. |
16 | */ |
17 | |
a6ec74c1 |
18 | #include "EXTERN.h" |
19 | #define PERL_IN_PP_PACK_C |
20 | #include "perl.h" |
21 | |
22 | /* |
23 | * The compiler on Concurrent CX/UX systems has a subtle bug which only |
24 | * seems to show up when compiling pp.c - it generates the wrong double |
25 | * precision constant value for (double)UV_MAX when used inline in the body |
26 | * of the code below, so this makes a static variable up front (which the |
27 | * compiler seems to get correct) and uses it in place of UV_MAX below. |
28 | */ |
29 | #ifdef CXUX_BROKEN_CONSTANT_CONVERT |
30 | static double UV_MAX_cxux = ((double)UV_MAX); |
31 | #endif |
32 | |
33 | /* |
34 | * Offset for integer pack/unpack. |
35 | * |
36 | * On architectures where I16 and I32 aren't really 16 and 32 bits, |
37 | * which for now are all Crays, pack and unpack have to play games. |
38 | */ |
39 | |
40 | /* |
41 | * These values are required for portability of pack() output. |
42 | * If they're not right on your machine, then pack() and unpack() |
43 | * wouldn't work right anyway; you'll need to apply the Cray hack. |
44 | * (I'd like to check them with #if, but you can't use sizeof() in |
45 | * the preprocessor.) --??? |
46 | */ |
47 | /* |
48 | The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE |
49 | defines are now in config.h. --Andy Dougherty April 1998 |
50 | */ |
51 | #define SIZE16 2 |
52 | #define SIZE32 4 |
53 | |
54 | /* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack(). |
55 | --jhi Feb 1999 */ |
56 | |
57 | #if SHORTSIZE != SIZE16 || LONGSIZE != SIZE32 |
58 | # define PERL_NATINT_PACK |
59 | #endif |
60 | |
61 | #if LONGSIZE > 4 && defined(_CRAY) |
62 | # if BYTEORDER == 0x12345678 |
63 | # define OFF16(p) (char*)(p) |
64 | # define OFF32(p) (char*)(p) |
65 | # else |
66 | # if BYTEORDER == 0x87654321 |
67 | # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16)) |
68 | # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32)) |
69 | # else |
70 | }}}} bad cray byte order |
71 | # endif |
72 | # endif |
73 | # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char)) |
74 | # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char)) |
75 | # define COPYNN(s,p,n) (*(p) = 0, Copy(s, (char *)(p), n, char)) |
76 | # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16) |
77 | # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32) |
78 | #else |
79 | # define COPY16(s,p) Copy(s, p, SIZE16, char) |
80 | # define COPY32(s,p) Copy(s, p, SIZE32, char) |
81 | # define COPYNN(s,p,n) Copy(s, (char *)(p), n, char) |
82 | # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16) |
83 | # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32) |
84 | #endif |
85 | |
86 | STATIC SV * |
87 | S_mul128(pTHX_ SV *sv, U8 m) |
88 | { |
89 | STRLEN len; |
90 | char *s = SvPV(sv, len); |
91 | char *t; |
92 | U32 i = 0; |
93 | |
94 | if (!strnEQ(s, "0000", 4)) { /* need to grow sv */ |
95 | SV *tmpNew = newSVpvn("0000000000", 10); |
96 | |
97 | sv_catsv(tmpNew, sv); |
98 | SvREFCNT_dec(sv); /* free old sv */ |
99 | sv = tmpNew; |
100 | s = SvPV(sv, len); |
101 | } |
102 | t = s + len - 1; |
103 | while (!*t) /* trailing '\0'? */ |
104 | t--; |
105 | while (t > s) { |
106 | i = ((*t - '0') << 7) + m; |
107 | *(t--) = '0' + (i % 10); |
108 | m = i / 10; |
109 | } |
110 | return (sv); |
111 | } |
112 | |
113 | /* Explosives and implosives. */ |
114 | |
115 | #if 'I' == 73 && 'J' == 74 |
116 | /* On an ASCII/ISO kind of system */ |
117 | #define ISUUCHAR(ch) ((ch) >= ' ' && (ch) < 'a') |
118 | #else |
119 | /* |
120 | Some other sort of character set - use memchr() so we don't match |
121 | the null byte. |
122 | */ |
123 | #define ISUUCHAR(ch) (memchr(PL_uuemap, (ch), sizeof(PL_uuemap)-1) || (ch) == ' ') |
124 | #endif |
125 | |
18529408 |
126 | #define UNPACK_ONLY_ONE 0x1 |
127 | #define UNPACK_DO_UTF8 0x2 |
a6ec74c1 |
128 | |
18529408 |
129 | STATIC char * |
130 | S_group_end(pTHX_ register char *pat, register char *patend, char ender) |
131 | { |
132 | while (pat < patend) { |
133 | char c = *pat++; |
134 | |
135 | if (isSPACE(c)) |
136 | continue; |
137 | else if (c == ender) |
138 | return --pat; |
139 | else if (c == '#') { |
140 | while (pat < patend && *pat != '\n') |
141 | pat++; |
142 | continue; |
143 | } else if (c == '(') |
144 | pat = group_end(pat, patend, ')') + 1; |
145 | } |
146 | croak("No group ending character `%c' found", ender); |
147 | } |
148 | |
149 | /* Returns -1 on no count or on star */ |
150 | STATIC I32 |
151 | S_find_count(pTHX_ char **ppat, register char *patend, int *star) |
152 | { |
153 | register char *pat = *ppat; |
154 | I32 len; |
155 | |
156 | *star = 0; |
157 | if (pat >= patend) |
158 | len = 1; |
159 | else if (*pat == '*') { |
160 | pat++; |
161 | *star = 1; |
162 | len = -1; |
163 | } |
164 | else if (isDIGIT(*pat) || *pat == '[') { |
165 | bool brackets = *pat == '['; |
166 | |
167 | if (brackets) |
168 | ++pat, len = 0; |
169 | else |
170 | len = *pat++ - '0'; |
171 | while (isDIGIT(*pat)) { |
172 | len = (len * 10) + (*pat++ - '0'); |
173 | if (len < 0) |
174 | croak("Repeat count in unpack overflows"); |
175 | } |
176 | if (brackets && *pat++ != ']') |
177 | croak("No repeat count ender ] found after digits"); |
178 | } |
179 | else |
180 | len = *star = -1; |
181 | *ppat = pat; |
182 | return len; |
183 | } |
184 | |
185 | STATIC char * |
186 | S_next_symbol(pTHX_ register char *pat, register char *patend) |
187 | { |
188 | while (pat < patend) { |
189 | if (isSPACE(*pat)) |
190 | pat++; |
191 | else if (*pat == '#') { |
192 | pat++; |
193 | while (pat < patend && *pat != '\n') |
194 | pat++; |
195 | if (pat < patend) |
196 | pat++; |
197 | } |
198 | else |
199 | return pat; |
200 | } |
201 | return pat; |
202 | } |
203 | |
204 | |
205 | /* |
206 | =for apidoc unpack_str |
207 | |
208 | The engine implementing unpack() Perl function. |
209 | |
210 | =cut */ |
211 | |
212 | I32 |
213 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) |
a6ec74c1 |
214 | { |
215 | dSP; |
a6ec74c1 |
216 | I32 datumtype; |
217 | register I32 len; |
218 | register I32 bits = 0; |
219 | register char *str; |
18529408 |
220 | SV *sv; |
221 | I32 start_sp_offset = SP - PL_stack_base; |
a6ec74c1 |
222 | |
223 | /* These must not be in registers: */ |
224 | short ashort; |
225 | int aint; |
226 | long along; |
227 | #ifdef HAS_QUAD |
228 | Quad_t aquad; |
229 | #endif |
230 | U16 aushort; |
231 | unsigned int auint; |
232 | U32 aulong; |
233 | #ifdef HAS_QUAD |
234 | Uquad_t auquad; |
235 | #endif |
236 | char *aptr; |
237 | float afloat; |
238 | double adouble; |
239 | I32 checksum = 0; |
fa8ec7c1 |
240 | UV culong = 0; |
a6ec74c1 |
241 | NV cdouble = 0.0; |
fa8ec7c1 |
242 | const int bits_in_uv = 8 * sizeof(culong); |
a6ec74c1 |
243 | int commas = 0; |
18529408 |
244 | int star; /* 1 if count is *, -1 if no count given, -2 for / */ |
a6ec74c1 |
245 | #ifdef PERL_NATINT_PACK |
246 | int natint; /* native integer */ |
247 | int unatint; /* unsigned native integer */ |
248 | #endif |
18529408 |
249 | bool do_utf8 = flags & UNPACK_DO_UTF8; |
a6ec74c1 |
250 | |
18529408 |
251 | while ((pat = next_symbol(pat, patend)) < patend) { |
a6ec74c1 |
252 | datumtype = *pat++ & 0xFF; |
253 | #ifdef PERL_NATINT_PACK |
254 | natint = 0; |
255 | #endif |
a6ec74c1 |
256 | if (*pat == '!') { |
257 | char *natstr = "sSiIlL"; |
258 | |
259 | if (strchr(natstr, datumtype)) { |
260 | #ifdef PERL_NATINT_PACK |
261 | natint = 1; |
262 | #endif |
263 | pat++; |
264 | } |
265 | else |
18529408 |
266 | croak("'!' allowed only after types %s", natstr); |
a6ec74c1 |
267 | } |
18529408 |
268 | len = find_count(&pat, patend, &star); |
269 | if (star > 0) |
270 | len = strend - strbeg; /* long enough */ |
271 | else if (star < 0) /* No explicit len */ |
272 | len = datumtype != '@'; |
273 | |
a6ec74c1 |
274 | redo_switch: |
275 | switch(datumtype) { |
276 | default: |
18529408 |
277 | croak("Invalid type in unpack: '%c'", (int)datumtype); |
a6ec74c1 |
278 | case ',': /* grandfather in commas but with a warning */ |
279 | if (commas++ == 0 && ckWARN(WARN_UNPACK)) |
280 | Perl_warner(aTHX_ WARN_UNPACK, |
281 | "Invalid type in unpack: '%c'", (int)datumtype); |
282 | break; |
283 | case '%': |
18529408 |
284 | if (len == 1 && pat[-1] != '1' && pat[-1] != ']') |
285 | len = 16; /* len is not specified */ |
a6ec74c1 |
286 | checksum = len; |
287 | culong = 0; |
288 | cdouble = 0; |
18529408 |
289 | continue; |
a6ec74c1 |
290 | break; |
18529408 |
291 | case '(': |
292 | { |
293 | char *beg = pat; |
294 | char *ss = s; /* Move from register */ |
295 | |
296 | if (star >= 0) |
297 | croak("()-group starts with a count"); |
298 | aptr = group_end(beg, patend, ')'); |
299 | pat = aptr + 1; |
300 | if (star != -2) { |
301 | len = find_count(&pat, patend, &star); |
302 | if (star < 0) /* No count */ |
303 | len = 1; |
304 | else if (star > 0) /* Star */ |
305 | len = strend - strbeg; /* long enough? */ |
306 | } |
307 | PUTBACK; |
308 | while (len--) { |
309 | unpack_str(beg, aptr, ss, strbeg, strend, &ss, |
310 | ocnt + SP - PL_stack_base - start_sp_offset, flags); |
311 | if (star > 0 && ss == strend) |
312 | break; /* No way to continue */ |
313 | } |
314 | SPAGAIN; |
315 | s = ss; |
316 | break; |
317 | } |
a6ec74c1 |
318 | case '@': |
319 | if (len > strend - strbeg) |
18529408 |
320 | croak("@ outside of string"); |
a6ec74c1 |
321 | s = strbeg + len; |
322 | break; |
323 | case 'X': |
324 | if (len > s - strbeg) |
18529408 |
325 | croak("X outside of string"); |
a6ec74c1 |
326 | s -= len; |
327 | break; |
328 | case 'x': |
329 | if (len > strend - s) |
18529408 |
330 | croak("x outside of string"); |
a6ec74c1 |
331 | s += len; |
332 | break; |
333 | case '/': |
18529408 |
334 | if (ocnt + SP - PL_stack_base - start_sp_offset <= 0) |
335 | croak("/ must follow a numeric type"); |
a6ec74c1 |
336 | datumtype = *pat++; |
337 | if (*pat == '*') |
338 | pat++; /* ignore '*' for compatibility with pack */ |
339 | if (isDIGIT(*pat)) |
18529408 |
340 | croak("/ cannot take a count" ); |
a6ec74c1 |
341 | len = POPi; |
18529408 |
342 | star = -2; |
a6ec74c1 |
343 | goto redo_switch; |
344 | case 'A': |
345 | case 'Z': |
346 | case 'a': |
347 | if (len > strend - s) |
348 | len = strend - s; |
349 | if (checksum) |
350 | goto uchar_checksum; |
351 | sv = NEWSV(35, len); |
352 | sv_setpvn(sv, s, len); |
a6ec74c1 |
353 | if (datumtype == 'A' || datumtype == 'Z') { |
354 | aptr = s; /* borrow register */ |
355 | if (datumtype == 'Z') { /* 'Z' strips stuff after first null */ |
356 | s = SvPVX(sv); |
357 | while (*s) |
358 | s++; |
18529408 |
359 | if (star > 0) /* exact for 'Z*' */ |
d50dd4e4 |
360 | len = s - SvPVX(sv) + 1; |
a6ec74c1 |
361 | } |
362 | else { /* 'A' strips both nulls and spaces */ |
363 | s = SvPVX(sv) + len - 1; |
364 | while (s >= SvPVX(sv) && (!*s || isSPACE(*s))) |
365 | s--; |
366 | *++s = '\0'; |
367 | } |
368 | SvCUR_set(sv, s - SvPVX(sv)); |
369 | s = aptr; /* unborrow register */ |
370 | } |
d50dd4e4 |
371 | s += len; |
a6ec74c1 |
372 | XPUSHs(sv_2mortal(sv)); |
373 | break; |
374 | case 'B': |
375 | case 'b': |
18529408 |
376 | if (star > 0 || len > (strend - s) * 8) |
a6ec74c1 |
377 | len = (strend - s) * 8; |
378 | if (checksum) { |
379 | if (!PL_bitcount) { |
380 | Newz(601, PL_bitcount, 256, char); |
381 | for (bits = 1; bits < 256; bits++) { |
382 | if (bits & 1) PL_bitcount[bits]++; |
383 | if (bits & 2) PL_bitcount[bits]++; |
384 | if (bits & 4) PL_bitcount[bits]++; |
385 | if (bits & 8) PL_bitcount[bits]++; |
386 | if (bits & 16) PL_bitcount[bits]++; |
387 | if (bits & 32) PL_bitcount[bits]++; |
388 | if (bits & 64) PL_bitcount[bits]++; |
389 | if (bits & 128) PL_bitcount[bits]++; |
390 | } |
391 | } |
392 | while (len >= 8) { |
393 | culong += PL_bitcount[*(unsigned char*)s++]; |
394 | len -= 8; |
395 | } |
396 | if (len) { |
397 | bits = *s; |
398 | if (datumtype == 'b') { |
399 | while (len-- > 0) { |
400 | if (bits & 1) culong++; |
401 | bits >>= 1; |
402 | } |
403 | } |
404 | else { |
405 | while (len-- > 0) { |
406 | if (bits & 128) culong++; |
407 | bits <<= 1; |
408 | } |
409 | } |
410 | } |
411 | break; |
412 | } |
413 | sv = NEWSV(35, len + 1); |
414 | SvCUR_set(sv, len); |
415 | SvPOK_on(sv); |
416 | str = SvPVX(sv); |
417 | if (datumtype == 'b') { |
418 | aint = len; |
419 | for (len = 0; len < aint; len++) { |
420 | if (len & 7) /*SUPPRESS 595*/ |
421 | bits >>= 1; |
422 | else |
423 | bits = *s++; |
424 | *str++ = '0' + (bits & 1); |
425 | } |
426 | } |
427 | else { |
428 | aint = len; |
429 | for (len = 0; len < aint; len++) { |
430 | if (len & 7) |
431 | bits <<= 1; |
432 | else |
433 | bits = *s++; |
434 | *str++ = '0' + ((bits & 128) != 0); |
435 | } |
436 | } |
437 | *str = '\0'; |
438 | XPUSHs(sv_2mortal(sv)); |
439 | break; |
440 | case 'H': |
441 | case 'h': |
18529408 |
442 | if (star > 0 || len > (strend - s) * 2) |
a6ec74c1 |
443 | len = (strend - s) * 2; |
444 | sv = NEWSV(35, len + 1); |
445 | SvCUR_set(sv, len); |
446 | SvPOK_on(sv); |
447 | str = SvPVX(sv); |
448 | if (datumtype == 'h') { |
449 | aint = len; |
450 | for (len = 0; len < aint; len++) { |
451 | if (len & 1) |
452 | bits >>= 4; |
453 | else |
454 | bits = *s++; |
455 | *str++ = PL_hexdigit[bits & 15]; |
456 | } |
457 | } |
458 | else { |
459 | aint = len; |
460 | for (len = 0; len < aint; len++) { |
461 | if (len & 1) |
462 | bits <<= 4; |
463 | else |
464 | bits = *s++; |
465 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
466 | } |
467 | } |
468 | *str = '\0'; |
469 | XPUSHs(sv_2mortal(sv)); |
470 | break; |
471 | case 'c': |
472 | if (len > strend - s) |
473 | len = strend - s; |
474 | if (checksum) { |
475 | while (len-- > 0) { |
476 | aint = *s++; |
477 | if (aint >= 128) /* fake up signed chars */ |
478 | aint -= 256; |
fa8ec7c1 |
479 | if (checksum > bits_in_uv) |
480 | cdouble += (NV)aint; |
481 | else |
482 | culong += aint; |
a6ec74c1 |
483 | } |
484 | } |
485 | else { |
486 | EXTEND(SP, len); |
487 | EXTEND_MORTAL(len); |
488 | while (len-- > 0) { |
489 | aint = *s++; |
490 | if (aint >= 128) /* fake up signed chars */ |
491 | aint -= 256; |
492 | sv = NEWSV(36, 0); |
493 | sv_setiv(sv, (IV)aint); |
494 | PUSHs(sv_2mortal(sv)); |
495 | } |
496 | } |
497 | break; |
498 | case 'C': |
35bcd338 |
499 | unpack_C: /* unpack U will jump here if not UTF-8 */ |
500 | if (len == 0) { |
501 | do_utf8 = FALSE; |
502 | break; |
503 | } |
a6ec74c1 |
504 | if (len > strend - s) |
505 | len = strend - s; |
506 | if (checksum) { |
507 | uchar_checksum: |
508 | while (len-- > 0) { |
509 | auint = *s++ & 255; |
510 | culong += auint; |
511 | } |
512 | } |
513 | else { |
514 | EXTEND(SP, len); |
515 | EXTEND_MORTAL(len); |
516 | while (len-- > 0) { |
517 | auint = *s++ & 255; |
518 | sv = NEWSV(37, 0); |
519 | sv_setiv(sv, (IV)auint); |
520 | PUSHs(sv_2mortal(sv)); |
521 | } |
522 | } |
523 | break; |
524 | case 'U': |
35bcd338 |
525 | if (len == 0) { |
526 | do_utf8 = TRUE; |
527 | break; |
528 | } |
529 | if (!do_utf8) |
530 | goto unpack_C; |
a6ec74c1 |
531 | if (len > strend - s) |
532 | len = strend - s; |
533 | if (checksum) { |
534 | while (len-- > 0 && s < strend) { |
535 | STRLEN alen; |
e87322b2 |
536 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, 0)); |
a6ec74c1 |
537 | along = alen; |
538 | s += along; |
fa8ec7c1 |
539 | if (checksum > bits_in_uv) |
a6ec74c1 |
540 | cdouble += (NV)auint; |
541 | else |
542 | culong += auint; |
543 | } |
544 | } |
545 | else { |
546 | EXTEND(SP, len); |
547 | EXTEND_MORTAL(len); |
548 | while (len-- > 0 && s < strend) { |
549 | STRLEN alen; |
e87322b2 |
550 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, 0)); |
a6ec74c1 |
551 | along = alen; |
552 | s += along; |
553 | sv = NEWSV(37, 0); |
554 | sv_setuv(sv, (UV)auint); |
555 | PUSHs(sv_2mortal(sv)); |
556 | } |
557 | } |
558 | break; |
559 | case 's': |
560 | #if SHORTSIZE == SIZE16 |
561 | along = (strend - s) / SIZE16; |
562 | #else |
563 | along = (strend - s) / (natint ? sizeof(short) : SIZE16); |
564 | #endif |
565 | if (len > along) |
566 | len = along; |
567 | if (checksum) { |
568 | #if SHORTSIZE != SIZE16 |
569 | if (natint) { |
570 | short ashort; |
571 | while (len-- > 0) { |
572 | COPYNN(s, &ashort, sizeof(short)); |
573 | s += sizeof(short); |
fa8ec7c1 |
574 | if (checksum > bits_in_uv) |
575 | cdouble += (NV)ashort; |
576 | else |
577 | culong += ashort; |
a6ec74c1 |
578 | |
579 | } |
580 | } |
581 | else |
582 | #endif |
583 | { |
584 | while (len-- > 0) { |
585 | COPY16(s, &ashort); |
586 | #if SHORTSIZE > SIZE16 |
587 | if (ashort > 32767) |
588 | ashort -= 65536; |
589 | #endif |
590 | s += SIZE16; |
fa8ec7c1 |
591 | if (checksum > bits_in_uv) |
592 | cdouble += (NV)ashort; |
593 | else |
594 | culong += ashort; |
a6ec74c1 |
595 | } |
596 | } |
597 | } |
598 | else { |
599 | EXTEND(SP, len); |
600 | EXTEND_MORTAL(len); |
601 | #if SHORTSIZE != SIZE16 |
602 | if (natint) { |
603 | short ashort; |
604 | while (len-- > 0) { |
605 | COPYNN(s, &ashort, sizeof(short)); |
606 | s += sizeof(short); |
607 | sv = NEWSV(38, 0); |
608 | sv_setiv(sv, (IV)ashort); |
609 | PUSHs(sv_2mortal(sv)); |
610 | } |
611 | } |
612 | else |
613 | #endif |
614 | { |
615 | while (len-- > 0) { |
616 | COPY16(s, &ashort); |
617 | #if SHORTSIZE > SIZE16 |
618 | if (ashort > 32767) |
619 | ashort -= 65536; |
620 | #endif |
621 | s += SIZE16; |
622 | sv = NEWSV(38, 0); |
623 | sv_setiv(sv, (IV)ashort); |
624 | PUSHs(sv_2mortal(sv)); |
625 | } |
626 | } |
627 | } |
628 | break; |
629 | case 'v': |
630 | case 'n': |
631 | case 'S': |
632 | #if SHORTSIZE == SIZE16 |
633 | along = (strend - s) / SIZE16; |
634 | #else |
635 | unatint = natint && datumtype == 'S'; |
636 | along = (strend - s) / (unatint ? sizeof(unsigned short) : SIZE16); |
637 | #endif |
638 | if (len > along) |
639 | len = along; |
640 | if (checksum) { |
641 | #if SHORTSIZE != SIZE16 |
642 | if (unatint) { |
643 | unsigned short aushort; |
644 | while (len-- > 0) { |
645 | COPYNN(s, &aushort, sizeof(unsigned short)); |
646 | s += sizeof(unsigned short); |
fa8ec7c1 |
647 | if (checksum > bits_in_uv) |
648 | cdouble += (NV)aushort; |
649 | else |
650 | culong += aushort; |
a6ec74c1 |
651 | } |
652 | } |
653 | else |
654 | #endif |
655 | { |
656 | while (len-- > 0) { |
657 | COPY16(s, &aushort); |
658 | s += SIZE16; |
659 | #ifdef HAS_NTOHS |
660 | if (datumtype == 'n') |
661 | aushort = PerlSock_ntohs(aushort); |
662 | #endif |
663 | #ifdef HAS_VTOHS |
664 | if (datumtype == 'v') |
665 | aushort = vtohs(aushort); |
666 | #endif |
fa8ec7c1 |
667 | if (checksum > bits_in_uv) |
668 | cdouble += (NV)aushort; |
669 | else |
670 | culong += aushort; |
a6ec74c1 |
671 | } |
672 | } |
673 | } |
674 | else { |
675 | EXTEND(SP, len); |
676 | EXTEND_MORTAL(len); |
677 | #if SHORTSIZE != SIZE16 |
678 | if (unatint) { |
679 | unsigned short aushort; |
680 | while (len-- > 0) { |
681 | COPYNN(s, &aushort, sizeof(unsigned short)); |
682 | s += sizeof(unsigned short); |
683 | sv = NEWSV(39, 0); |
684 | sv_setiv(sv, (UV)aushort); |
685 | PUSHs(sv_2mortal(sv)); |
686 | } |
687 | } |
688 | else |
689 | #endif |
690 | { |
691 | while (len-- > 0) { |
692 | COPY16(s, &aushort); |
693 | s += SIZE16; |
694 | sv = NEWSV(39, 0); |
695 | #ifdef HAS_NTOHS |
696 | if (datumtype == 'n') |
697 | aushort = PerlSock_ntohs(aushort); |
698 | #endif |
699 | #ifdef HAS_VTOHS |
700 | if (datumtype == 'v') |
701 | aushort = vtohs(aushort); |
702 | #endif |
703 | sv_setiv(sv, (UV)aushort); |
704 | PUSHs(sv_2mortal(sv)); |
705 | } |
706 | } |
707 | } |
708 | break; |
709 | case 'i': |
710 | along = (strend - s) / sizeof(int); |
711 | if (len > along) |
712 | len = along; |
713 | if (checksum) { |
714 | while (len-- > 0) { |
715 | Copy(s, &aint, 1, int); |
716 | s += sizeof(int); |
fa8ec7c1 |
717 | if (checksum > bits_in_uv) |
a6ec74c1 |
718 | cdouble += (NV)aint; |
719 | else |
720 | culong += aint; |
721 | } |
722 | } |
723 | else { |
724 | EXTEND(SP, len); |
725 | EXTEND_MORTAL(len); |
726 | while (len-- > 0) { |
727 | Copy(s, &aint, 1, int); |
728 | s += sizeof(int); |
729 | sv = NEWSV(40, 0); |
730 | #ifdef __osf__ |
731 | /* Without the dummy below unpack("i", pack("i",-1)) |
732 | * return 0xFFffFFff instead of -1 for Digital Unix V4.0 |
733 | * cc with optimization turned on. |
734 | * |
735 | * The bug was detected in |
736 | * DEC C V5.8-009 on Digital UNIX V4.0 (Rev. 1091) (V4.0E) |
737 | * with optimization (-O4) turned on. |
738 | * DEC C V5.2-040 on Digital UNIX V4.0 (Rev. 564) (V4.0B) |
739 | * does not have this problem even with -O4. |
740 | * |
741 | * This bug was reported as DECC_BUGS 1431 |
742 | * and tracked internally as GEM_BUGS 7775. |
743 | * |
744 | * The bug is fixed in |
745 | * Tru64 UNIX V5.0: Compaq C V6.1-006 or later |
746 | * UNIX V4.0F support: DEC C V5.9-006 or later |
747 | * UNIX V4.0E support: DEC C V5.8-011 or later |
748 | * and also in DTK. |
749 | * |
750 | * See also few lines later for the same bug. |
751 | */ |
752 | (aint) ? |
753 | sv_setiv(sv, (IV)aint) : |
754 | #endif |
755 | sv_setiv(sv, (IV)aint); |
756 | PUSHs(sv_2mortal(sv)); |
757 | } |
758 | } |
759 | break; |
760 | case 'I': |
761 | along = (strend - s) / sizeof(unsigned int); |
762 | if (len > along) |
763 | len = along; |
764 | if (checksum) { |
765 | while (len-- > 0) { |
766 | Copy(s, &auint, 1, unsigned int); |
767 | s += sizeof(unsigned int); |
fa8ec7c1 |
768 | if (checksum > bits_in_uv) |
a6ec74c1 |
769 | cdouble += (NV)auint; |
770 | else |
771 | culong += auint; |
772 | } |
773 | } |
774 | else { |
775 | EXTEND(SP, len); |
776 | EXTEND_MORTAL(len); |
777 | while (len-- > 0) { |
778 | Copy(s, &auint, 1, unsigned int); |
779 | s += sizeof(unsigned int); |
780 | sv = NEWSV(41, 0); |
781 | #ifdef __osf__ |
782 | /* Without the dummy below unpack("I", pack("I",0xFFFFFFFF)) |
783 | * returns 1.84467440737096e+19 instead of 0xFFFFFFFF. |
784 | * See details few lines earlier. */ |
785 | (auint) ? |
786 | sv_setuv(sv, (UV)auint) : |
787 | #endif |
788 | sv_setuv(sv, (UV)auint); |
789 | PUSHs(sv_2mortal(sv)); |
790 | } |
791 | } |
792 | break; |
793 | case 'l': |
794 | #if LONGSIZE == SIZE32 |
795 | along = (strend - s) / SIZE32; |
796 | #else |
797 | along = (strend - s) / (natint ? sizeof(long) : SIZE32); |
798 | #endif |
799 | if (len > along) |
800 | len = along; |
801 | if (checksum) { |
802 | #if LONGSIZE != SIZE32 |
803 | if (natint) { |
804 | while (len-- > 0) { |
805 | COPYNN(s, &along, sizeof(long)); |
806 | s += sizeof(long); |
fa8ec7c1 |
807 | if (checksum > bits_in_uv) |
a6ec74c1 |
808 | cdouble += (NV)along; |
809 | else |
810 | culong += along; |
811 | } |
812 | } |
813 | else |
814 | #endif |
815 | { |
816 | while (len-- > 0) { |
817 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
818 | I32 along; |
819 | #endif |
820 | COPY32(s, &along); |
821 | #if LONGSIZE > SIZE32 |
822 | if (along > 2147483647) |
823 | along -= 4294967296; |
824 | #endif |
825 | s += SIZE32; |
fa8ec7c1 |
826 | if (checksum > bits_in_uv) |
a6ec74c1 |
827 | cdouble += (NV)along; |
828 | else |
829 | culong += along; |
830 | } |
831 | } |
832 | } |
833 | else { |
834 | EXTEND(SP, len); |
835 | EXTEND_MORTAL(len); |
836 | #if LONGSIZE != SIZE32 |
837 | if (natint) { |
838 | while (len-- > 0) { |
839 | COPYNN(s, &along, sizeof(long)); |
840 | s += sizeof(long); |
841 | sv = NEWSV(42, 0); |
842 | sv_setiv(sv, (IV)along); |
843 | PUSHs(sv_2mortal(sv)); |
844 | } |
845 | } |
846 | else |
847 | #endif |
848 | { |
849 | while (len-- > 0) { |
850 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
851 | I32 along; |
852 | #endif |
853 | COPY32(s, &along); |
854 | #if LONGSIZE > SIZE32 |
855 | if (along > 2147483647) |
856 | along -= 4294967296; |
857 | #endif |
858 | s += SIZE32; |
859 | sv = NEWSV(42, 0); |
860 | sv_setiv(sv, (IV)along); |
861 | PUSHs(sv_2mortal(sv)); |
862 | } |
863 | } |
864 | } |
865 | break; |
866 | case 'V': |
867 | case 'N': |
868 | case 'L': |
869 | #if LONGSIZE == SIZE32 |
870 | along = (strend - s) / SIZE32; |
871 | #else |
872 | unatint = natint && datumtype == 'L'; |
873 | along = (strend - s) / (unatint ? sizeof(unsigned long) : SIZE32); |
874 | #endif |
875 | if (len > along) |
876 | len = along; |
877 | if (checksum) { |
878 | #if LONGSIZE != SIZE32 |
879 | if (unatint) { |
880 | unsigned long aulong; |
881 | while (len-- > 0) { |
882 | COPYNN(s, &aulong, sizeof(unsigned long)); |
883 | s += sizeof(unsigned long); |
fa8ec7c1 |
884 | if (checksum > bits_in_uv) |
a6ec74c1 |
885 | cdouble += (NV)aulong; |
886 | else |
887 | culong += aulong; |
888 | } |
889 | } |
890 | else |
891 | #endif |
892 | { |
893 | while (len-- > 0) { |
894 | COPY32(s, &aulong); |
895 | s += SIZE32; |
896 | #ifdef HAS_NTOHL |
897 | if (datumtype == 'N') |
898 | aulong = PerlSock_ntohl(aulong); |
899 | #endif |
900 | #ifdef HAS_VTOHL |
901 | if (datumtype == 'V') |
902 | aulong = vtohl(aulong); |
903 | #endif |
fa8ec7c1 |
904 | if (checksum > bits_in_uv) |
a6ec74c1 |
905 | cdouble += (NV)aulong; |
906 | else |
907 | culong += aulong; |
908 | } |
909 | } |
910 | } |
911 | else { |
912 | EXTEND(SP, len); |
913 | EXTEND_MORTAL(len); |
914 | #if LONGSIZE != SIZE32 |
915 | if (unatint) { |
916 | unsigned long aulong; |
917 | while (len-- > 0) { |
918 | COPYNN(s, &aulong, sizeof(unsigned long)); |
919 | s += sizeof(unsigned long); |
920 | sv = NEWSV(43, 0); |
921 | sv_setuv(sv, (UV)aulong); |
922 | PUSHs(sv_2mortal(sv)); |
923 | } |
924 | } |
925 | else |
926 | #endif |
927 | { |
928 | while (len-- > 0) { |
929 | COPY32(s, &aulong); |
930 | s += SIZE32; |
931 | #ifdef HAS_NTOHL |
932 | if (datumtype == 'N') |
933 | aulong = PerlSock_ntohl(aulong); |
934 | #endif |
935 | #ifdef HAS_VTOHL |
936 | if (datumtype == 'V') |
937 | aulong = vtohl(aulong); |
938 | #endif |
939 | sv = NEWSV(43, 0); |
940 | sv_setuv(sv, (UV)aulong); |
941 | PUSHs(sv_2mortal(sv)); |
942 | } |
943 | } |
944 | } |
945 | break; |
946 | case 'p': |
947 | along = (strend - s) / sizeof(char*); |
948 | if (len > along) |
949 | len = along; |
950 | EXTEND(SP, len); |
951 | EXTEND_MORTAL(len); |
952 | while (len-- > 0) { |
953 | if (sizeof(char*) > strend - s) |
954 | break; |
955 | else { |
956 | Copy(s, &aptr, 1, char*); |
957 | s += sizeof(char*); |
958 | } |
959 | sv = NEWSV(44, 0); |
960 | if (aptr) |
961 | sv_setpv(sv, aptr); |
962 | PUSHs(sv_2mortal(sv)); |
963 | } |
964 | break; |
965 | case 'w': |
966 | EXTEND(SP, len); |
967 | EXTEND_MORTAL(len); |
968 | { |
969 | UV auv = 0; |
970 | U32 bytes = 0; |
971 | |
972 | while ((len > 0) && (s < strend)) { |
973 | auv = (auv << 7) | (*s & 0x7f); |
974 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
975 | if ((U8)(*s++) < 0x80) { |
976 | bytes = 0; |
977 | sv = NEWSV(40, 0); |
978 | sv_setuv(sv, auv); |
979 | PUSHs(sv_2mortal(sv)); |
980 | len--; |
981 | auv = 0; |
982 | } |
983 | else if (++bytes >= sizeof(UV)) { /* promote to string */ |
984 | char *t; |
985 | STRLEN n_a; |
986 | |
987 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); |
988 | while (s < strend) { |
989 | sv = mul128(sv, *s & 0x7f); |
990 | if (!(*s++ & 0x80)) { |
991 | bytes = 0; |
992 | break; |
993 | } |
994 | } |
995 | t = SvPV(sv, n_a); |
996 | while (*t == '0') |
997 | t++; |
998 | sv_chop(sv, t); |
999 | PUSHs(sv_2mortal(sv)); |
1000 | len--; |
1001 | auv = 0; |
1002 | } |
1003 | } |
1004 | if ((s >= strend) && bytes) |
18529408 |
1005 | croak("Unterminated compressed integer"); |
a6ec74c1 |
1006 | } |
1007 | break; |
1008 | case 'P': |
18529408 |
1009 | if (star > 0) |
1010 | croak("P must have an explicit size"); |
a6ec74c1 |
1011 | EXTEND(SP, 1); |
1012 | if (sizeof(char*) > strend - s) |
1013 | break; |
1014 | else { |
1015 | Copy(s, &aptr, 1, char*); |
1016 | s += sizeof(char*); |
1017 | } |
1018 | sv = NEWSV(44, 0); |
1019 | if (aptr) |
1020 | sv_setpvn(sv, aptr, len); |
1021 | PUSHs(sv_2mortal(sv)); |
1022 | break; |
1023 | #ifdef HAS_QUAD |
1024 | case 'q': |
1025 | along = (strend - s) / sizeof(Quad_t); |
1026 | if (len > along) |
1027 | len = along; |
fa8ec7c1 |
1028 | if (checksum) { |
1029 | while (len-- > 0) { |
a6ec74c1 |
1030 | Copy(s, &aquad, 1, Quad_t); |
1031 | s += sizeof(Quad_t); |
fa8ec7c1 |
1032 | if (checksum > bits_in_uv) |
1033 | cdouble += (NV)aquad; |
1034 | else |
1035 | culong += aquad; |
a6ec74c1 |
1036 | } |
a6ec74c1 |
1037 | } |
fa8ec7c1 |
1038 | else { |
1039 | EXTEND(SP, len); |
1040 | EXTEND_MORTAL(len); |
1041 | while (len-- > 0) { |
1042 | if (s + sizeof(Quad_t) > strend) |
1043 | aquad = 0; |
1044 | else { |
1045 | Copy(s, &aquad, 1, Quad_t); |
1046 | s += sizeof(Quad_t); |
1047 | } |
1048 | sv = NEWSV(42, 0); |
1049 | if (aquad >= IV_MIN && aquad <= IV_MAX) |
1050 | sv_setiv(sv, (IV)aquad); |
1051 | else |
1052 | sv_setnv(sv, (NV)aquad); |
1053 | PUSHs(sv_2mortal(sv)); |
1054 | } |
1055 | } |
a6ec74c1 |
1056 | break; |
1057 | case 'Q': |
1058 | along = (strend - s) / sizeof(Quad_t); |
1059 | if (len > along) |
1060 | len = along; |
fa8ec7c1 |
1061 | if (checksum) { |
1062 | while (len-- > 0) { |
a6ec74c1 |
1063 | Copy(s, &auquad, 1, Uquad_t); |
1064 | s += sizeof(Uquad_t); |
fa8ec7c1 |
1065 | if (checksum > bits_in_uv) |
1066 | cdouble += (NV)auquad; |
1067 | else |
1068 | culong += auquad; |
a6ec74c1 |
1069 | } |
a6ec74c1 |
1070 | } |
fa8ec7c1 |
1071 | else { |
1072 | EXTEND(SP, len); |
1073 | EXTEND_MORTAL(len); |
1074 | while (len-- > 0) { |
1075 | if (s + sizeof(Uquad_t) > strend) |
1076 | auquad = 0; |
1077 | else { |
1078 | Copy(s, &auquad, 1, Uquad_t); |
1079 | s += sizeof(Uquad_t); |
1080 | } |
1081 | sv = NEWSV(43, 0); |
1082 | if (auquad <= UV_MAX) |
1083 | sv_setuv(sv, (UV)auquad); |
1084 | else |
1085 | sv_setnv(sv, (NV)auquad); |
1086 | PUSHs(sv_2mortal(sv)); |
1087 | } |
1088 | } |
a6ec74c1 |
1089 | break; |
1090 | #endif |
1091 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
1092 | case 'f': |
1093 | case 'F': |
1094 | along = (strend - s) / sizeof(float); |
1095 | if (len > along) |
1096 | len = along; |
1097 | if (checksum) { |
1098 | while (len-- > 0) { |
1099 | Copy(s, &afloat, 1, float); |
1100 | s += sizeof(float); |
1101 | cdouble += afloat; |
1102 | } |
1103 | } |
1104 | else { |
1105 | EXTEND(SP, len); |
1106 | EXTEND_MORTAL(len); |
1107 | while (len-- > 0) { |
1108 | Copy(s, &afloat, 1, float); |
1109 | s += sizeof(float); |
1110 | sv = NEWSV(47, 0); |
1111 | sv_setnv(sv, (NV)afloat); |
1112 | PUSHs(sv_2mortal(sv)); |
1113 | } |
1114 | } |
1115 | break; |
1116 | case 'd': |
1117 | case 'D': |
1118 | along = (strend - s) / sizeof(double); |
1119 | if (len > along) |
1120 | len = along; |
1121 | if (checksum) { |
1122 | while (len-- > 0) { |
1123 | Copy(s, &adouble, 1, double); |
1124 | s += sizeof(double); |
1125 | cdouble += adouble; |
1126 | } |
1127 | } |
1128 | else { |
1129 | EXTEND(SP, len); |
1130 | EXTEND_MORTAL(len); |
1131 | while (len-- > 0) { |
1132 | Copy(s, &adouble, 1, double); |
1133 | s += sizeof(double); |
1134 | sv = NEWSV(48, 0); |
1135 | sv_setnv(sv, (NV)adouble); |
1136 | PUSHs(sv_2mortal(sv)); |
1137 | } |
1138 | } |
1139 | break; |
1140 | case 'u': |
1141 | /* MKS: |
1142 | * Initialise the decode mapping. By using a table driven |
1143 | * algorithm, the code will be character-set independent |
1144 | * (and just as fast as doing character arithmetic) |
1145 | */ |
1146 | if (PL_uudmap['M'] == 0) { |
1147 | int i; |
1148 | |
1149 | for (i = 0; i < sizeof(PL_uuemap); i += 1) |
1150 | PL_uudmap[(U8)PL_uuemap[i]] = i; |
1151 | /* |
1152 | * Because ' ' and '`' map to the same value, |
1153 | * we need to decode them both the same. |
1154 | */ |
1155 | PL_uudmap[' '] = 0; |
1156 | } |
1157 | |
1158 | along = (strend - s) * 3 / 4; |
1159 | sv = NEWSV(42, along); |
1160 | if (along) |
1161 | SvPOK_on(sv); |
1162 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
1163 | I32 a, b, c, d; |
1164 | char hunk[4]; |
1165 | |
1166 | hunk[3] = '\0'; |
1167 | len = PL_uudmap[*(U8*)s++] & 077; |
1168 | while (len > 0) { |
1169 | if (s < strend && ISUUCHAR(*s)) |
1170 | a = PL_uudmap[*(U8*)s++] & 077; |
1171 | else |
1172 | a = 0; |
1173 | if (s < strend && ISUUCHAR(*s)) |
1174 | b = PL_uudmap[*(U8*)s++] & 077; |
1175 | else |
1176 | b = 0; |
1177 | if (s < strend && ISUUCHAR(*s)) |
1178 | c = PL_uudmap[*(U8*)s++] & 077; |
1179 | else |
1180 | c = 0; |
1181 | if (s < strend && ISUUCHAR(*s)) |
1182 | d = PL_uudmap[*(U8*)s++] & 077; |
1183 | else |
1184 | d = 0; |
1185 | hunk[0] = (a << 2) | (b >> 4); |
1186 | hunk[1] = (b << 4) | (c >> 2); |
1187 | hunk[2] = (c << 6) | d; |
1188 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
1189 | len -= 3; |
1190 | } |
1191 | if (*s == '\n') |
1192 | s++; |
1193 | else if (s[1] == '\n') /* possible checksum byte */ |
1194 | s += 2; |
1195 | } |
1196 | XPUSHs(sv_2mortal(sv)); |
1197 | break; |
1198 | } |
1199 | if (checksum) { |
1200 | sv = NEWSV(42, 0); |
1201 | if (strchr("fFdD", datumtype) || |
fa8ec7c1 |
1202 | (checksum > bits_in_uv && strchr("csSiIlLnNUvVqQ", datumtype)) ) { |
a6ec74c1 |
1203 | NV trouble; |
1204 | |
fa8ec7c1 |
1205 | adouble = (NV) (1 << (checksum & 15)); |
a6ec74c1 |
1206 | while (checksum >= 16) { |
1207 | checksum -= 16; |
1208 | adouble *= 65536.0; |
1209 | } |
a6ec74c1 |
1210 | while (cdouble < 0.0) |
1211 | cdouble += adouble; |
1212 | cdouble = Perl_modf(cdouble / adouble, &trouble) * adouble; |
1213 | sv_setnv(sv, cdouble); |
1214 | } |
1215 | else { |
fa8ec7c1 |
1216 | if (checksum < bits_in_uv) { |
1217 | UV mask = ((UV)1 << checksum) - 1; |
1218 | culong &= mask; |
a6ec74c1 |
1219 | } |
1220 | sv_setuv(sv, (UV)culong); |
1221 | } |
1222 | XPUSHs(sv_2mortal(sv)); |
1223 | checksum = 0; |
1224 | } |
18529408 |
1225 | if ((flags & UNPACK_ONLY_ONE) |
1226 | && SP - PL_stack_base == start_sp_offset + 1) { |
1227 | /* do first one only unless in list context |
b85d93de |
1228 | / is implmented by unpacking the count, then poping it from the |
1229 | stack, so must check that we're not in the middle of a / */ |
1230 | if ((pat >= patend) || *pat != '/') |
18529408 |
1231 | break; |
b85d93de |
1232 | } |
a6ec74c1 |
1233 | } |
18529408 |
1234 | if (new_s) |
1235 | *new_s = s; |
1236 | PUTBACK; |
1237 | return SP - PL_stack_base - start_sp_offset; |
1238 | } |
1239 | |
1240 | PP(pp_unpack) |
1241 | { |
1242 | dSP; |
1243 | dPOPPOPssrl; |
1244 | I32 gimme = GIMME_V; |
1245 | STRLEN llen; |
1246 | STRLEN rlen; |
1247 | register char *pat = SvPV(left, llen); |
1248 | #ifdef PACKED_IS_OCTETS |
1249 | /* Packed side is assumed to be octets - so force downgrade if it |
1250 | has been UTF-8 encoded by accident |
1251 | */ |
1252 | register char *s = SvPVbyte(right, rlen); |
1253 | #else |
1254 | register char *s = SvPV(right, rlen); |
1255 | #endif |
1256 | char *strend = s + rlen; |
1257 | register char *patend = pat + llen; |
1258 | register I32 cnt; |
1259 | |
1260 | PUTBACK; |
1261 | cnt = unpack_str(pat, patend, s, s, strend, NULL, 0, |
1262 | ((gimme == G_SCALAR) ? UNPACK_ONLY_ONE : 0) |
1263 | | (DO_UTF8(right) ? UNPACK_DO_UTF8 : 0)); |
1264 | SPAGAIN; |
1265 | if ( !cnt && gimme == G_SCALAR ) |
1266 | PUSHs(&PL_sv_undef); |
a6ec74c1 |
1267 | RETURN; |
1268 | } |
1269 | |
1270 | STATIC void |
1271 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) |
1272 | { |
1273 | char hunk[5]; |
1274 | |
1275 | *hunk = PL_uuemap[len]; |
1276 | sv_catpvn(sv, hunk, 1); |
1277 | hunk[4] = '\0'; |
1278 | while (len > 2) { |
1279 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
1280 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; |
1281 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; |
1282 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; |
1283 | sv_catpvn(sv, hunk, 4); |
1284 | s += 3; |
1285 | len -= 3; |
1286 | } |
1287 | if (len > 0) { |
1288 | char r = (len > 1 ? s[1] : '\0'); |
1289 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
1290 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; |
1291 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; |
1292 | hunk[3] = PL_uuemap[0]; |
1293 | sv_catpvn(sv, hunk, 4); |
1294 | } |
1295 | sv_catpvn(sv, "\n", 1); |
1296 | } |
1297 | |
1298 | STATIC SV * |
1299 | S_is_an_int(pTHX_ char *s, STRLEN l) |
1300 | { |
1301 | STRLEN n_a; |
1302 | SV *result = newSVpvn(s, l); |
1303 | char *result_c = SvPV(result, n_a); /* convenience */ |
1304 | char *out = result_c; |
1305 | bool skip = 1; |
1306 | bool ignore = 0; |
1307 | |
1308 | while (*s) { |
1309 | switch (*s) { |
1310 | case ' ': |
1311 | break; |
1312 | case '+': |
1313 | if (!skip) { |
1314 | SvREFCNT_dec(result); |
1315 | return (NULL); |
1316 | } |
1317 | break; |
1318 | case '0': |
1319 | case '1': |
1320 | case '2': |
1321 | case '3': |
1322 | case '4': |
1323 | case '5': |
1324 | case '6': |
1325 | case '7': |
1326 | case '8': |
1327 | case '9': |
1328 | skip = 0; |
1329 | if (!ignore) { |
1330 | *(out++) = *s; |
1331 | } |
1332 | break; |
1333 | case '.': |
1334 | ignore = 1; |
1335 | break; |
1336 | default: |
1337 | SvREFCNT_dec(result); |
1338 | return (NULL); |
1339 | } |
1340 | s++; |
1341 | } |
1342 | *(out++) = '\0'; |
1343 | SvCUR_set(result, out - result_c); |
1344 | return (result); |
1345 | } |
1346 | |
1347 | /* pnum must be '\0' terminated */ |
1348 | STATIC int |
1349 | S_div128(pTHX_ SV *pnum, bool *done) |
1350 | { |
1351 | STRLEN len; |
1352 | char *s = SvPV(pnum, len); |
1353 | int m = 0; |
1354 | int r = 0; |
1355 | char *t = s; |
1356 | |
1357 | *done = 1; |
1358 | while (*t) { |
1359 | int i; |
1360 | |
1361 | i = m * 10 + (*t - '0'); |
1362 | m = i & 0x7F; |
1363 | r = (i >> 7); /* r < 10 */ |
1364 | if (r) { |
1365 | *done = 0; |
1366 | } |
1367 | *(t++) = '0' + r; |
1368 | } |
1369 | *(t++) = '\0'; |
1370 | SvCUR_set(pnum, (STRLEN) (t - s)); |
1371 | return (m); |
1372 | } |
1373 | |
18529408 |
1374 | #define PACK_CHILD 0x1 |
a6ec74c1 |
1375 | |
18529408 |
1376 | /* |
1377 | =for apidoc pack_cat |
1378 | |
1379 | The engine implementing pack() Perl function. |
1380 | |
1381 | =cut */ |
1382 | |
1383 | void |
1384 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) |
a6ec74c1 |
1385 | { |
a6ec74c1 |
1386 | register I32 items; |
1387 | STRLEN fromlen; |
a6ec74c1 |
1388 | register I32 len; |
1389 | I32 datumtype; |
1390 | SV *fromstr; |
1391 | /*SUPPRESS 442*/ |
1392 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; |
1393 | static char *space10 = " "; |
18529408 |
1394 | int star; |
a6ec74c1 |
1395 | |
1396 | /* These must not be in registers: */ |
1397 | char achar; |
1398 | I16 ashort; |
1399 | int aint; |
1400 | unsigned int auint; |
1401 | I32 along; |
1402 | U32 aulong; |
1403 | #ifdef HAS_QUAD |
1404 | Quad_t aquad; |
1405 | Uquad_t auquad; |
1406 | #endif |
1407 | char *aptr; |
1408 | float afloat; |
1409 | double adouble; |
1410 | int commas = 0; |
1411 | #ifdef PERL_NATINT_PACK |
1412 | int natint; /* native integer */ |
1413 | #endif |
1414 | |
18529408 |
1415 | items = endlist - beglist; |
1416 | #ifndef PACKED_IS_OCTETS |
1417 | pat = next_symbol(pat, patend); |
1418 | if (pat < patend && *pat == 'U' && !flags) |
1419 | SvUTF8_on(cat); |
1420 | #endif |
1421 | while ((pat = next_symbol(pat, patend)) < patend) { |
a6ec74c1 |
1422 | SV *lengthcode = Nullsv; |
18529408 |
1423 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
a6ec74c1 |
1424 | datumtype = *pat++ & 0xFF; |
1425 | #ifdef PERL_NATINT_PACK |
1426 | natint = 0; |
1427 | #endif |
a6ec74c1 |
1428 | if (*pat == '!') { |
1429 | char *natstr = "sSiIlL"; |
1430 | |
1431 | if (strchr(natstr, datumtype)) { |
1432 | #ifdef PERL_NATINT_PACK |
1433 | natint = 1; |
1434 | #endif |
1435 | pat++; |
1436 | } |
1437 | else |
18529408 |
1438 | croak("'!' allowed only after types %s", natstr); |
a6ec74c1 |
1439 | } |
18529408 |
1440 | len = find_count(&pat, patend, &star); |
1441 | if (star > 0) /* Count is '*' */ |
a6ec74c1 |
1442 | len = strchr("@Xxu", datumtype) ? 0 : items; |
18529408 |
1443 | else if (star < 0) /* Default len */ |
a6ec74c1 |
1444 | len = 1; |
18529408 |
1445 | if (*pat == '/') { /* doing lookahead how... */ |
a6ec74c1 |
1446 | ++pat; |
1447 | if ((*pat != 'a' && *pat != 'A' && *pat != 'Z') || pat[1] != '*') |
18529408 |
1448 | croak("/ must be followed by a*, A* or Z*"); |
a6ec74c1 |
1449 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 |
18529408 |
1450 | ? *beglist : &PL_sv_no) |
a6ec74c1 |
1451 | + (*pat == 'Z' ? 1 : 0))); |
1452 | } |
1453 | switch(datumtype) { |
1454 | default: |
18529408 |
1455 | croak("Invalid type in pack: '%c'", (int)datumtype); |
a6ec74c1 |
1456 | case ',': /* grandfather in commas but with a warning */ |
1457 | if (commas++ == 0 && ckWARN(WARN_PACK)) |
1458 | Perl_warner(aTHX_ WARN_PACK, |
1459 | "Invalid type in pack: '%c'", (int)datumtype); |
1460 | break; |
1461 | case '%': |
18529408 |
1462 | croak("%% may only be used in unpack"); |
a6ec74c1 |
1463 | case '@': |
1464 | len -= SvCUR(cat); |
1465 | if (len > 0) |
1466 | goto grow; |
1467 | len = -len; |
1468 | if (len > 0) |
1469 | goto shrink; |
1470 | break; |
18529408 |
1471 | case '(': |
1472 | { |
1473 | char *beg = pat; |
1474 | SV **savebeglist = beglist; /* beglist de-register-ed */ |
1475 | |
1476 | if (star >= 0) |
1477 | croak("()-group starts with a count"); |
1478 | aptr = group_end(beg, patend, ')'); |
1479 | pat = aptr + 1; |
1480 | if (star != -2) { |
1481 | len = find_count(&pat, patend, &star); |
1482 | if (star < 0) /* No count */ |
1483 | len = 1; |
1484 | else if (star > 0) /* Star */ |
1485 | len = items; /* long enough? */ |
1486 | } |
1487 | while (len--) { |
1488 | pack_cat(cat, beg, aptr, savebeglist, endlist, |
1489 | &savebeglist, PACK_CHILD); |
1490 | if (star > 0 && savebeglist == endlist) |
1491 | break; /* No way to continue */ |
1492 | } |
1493 | beglist = savebeglist; |
1494 | break; |
1495 | } |
a6ec74c1 |
1496 | case 'X': |
1497 | shrink: |
1498 | if (SvCUR(cat) < len) |
18529408 |
1499 | croak("X outside of string"); |
a6ec74c1 |
1500 | SvCUR(cat) -= len; |
1501 | *SvEND(cat) = '\0'; |
1502 | break; |
1503 | case 'x': |
1504 | grow: |
1505 | while (len >= 10) { |
1506 | sv_catpvn(cat, null10, 10); |
1507 | len -= 10; |
1508 | } |
1509 | sv_catpvn(cat, null10, len); |
1510 | break; |
1511 | case 'A': |
1512 | case 'Z': |
1513 | case 'a': |
1514 | fromstr = NEXTFROM; |
1515 | aptr = SvPV(fromstr, fromlen); |
18529408 |
1516 | if (star > 0) { /* -2 after '/' */ |
a6ec74c1 |
1517 | len = fromlen; |
1518 | if (datumtype == 'Z') |
1519 | ++len; |
1520 | } |
1521 | if (fromlen >= len) { |
1522 | sv_catpvn(cat, aptr, len); |
1523 | if (datumtype == 'Z') |
1524 | *(SvEND(cat)-1) = '\0'; |
1525 | } |
1526 | else { |
1527 | sv_catpvn(cat, aptr, fromlen); |
1528 | len -= fromlen; |
1529 | if (datumtype == 'A') { |
1530 | while (len >= 10) { |
1531 | sv_catpvn(cat, space10, 10); |
1532 | len -= 10; |
1533 | } |
1534 | sv_catpvn(cat, space10, len); |
1535 | } |
1536 | else { |
1537 | while (len >= 10) { |
1538 | sv_catpvn(cat, null10, 10); |
1539 | len -= 10; |
1540 | } |
1541 | sv_catpvn(cat, null10, len); |
1542 | } |
1543 | } |
1544 | break; |
1545 | case 'B': |
1546 | case 'b': |
1547 | { |
1548 | register char *str; |
1549 | I32 saveitems; |
1550 | |
1551 | fromstr = NEXTFROM; |
1552 | saveitems = items; |
1553 | str = SvPV(fromstr, fromlen); |
18529408 |
1554 | if (star > 0) |
a6ec74c1 |
1555 | len = fromlen; |
1556 | aint = SvCUR(cat); |
1557 | SvCUR(cat) += (len+7)/8; |
1558 | SvGROW(cat, SvCUR(cat) + 1); |
1559 | aptr = SvPVX(cat) + aint; |
1560 | if (len > fromlen) |
1561 | len = fromlen; |
1562 | aint = len; |
1563 | items = 0; |
1564 | if (datumtype == 'B') { |
1565 | for (len = 0; len++ < aint;) { |
1566 | items |= *str++ & 1; |
1567 | if (len & 7) |
1568 | items <<= 1; |
1569 | else { |
1570 | *aptr++ = items & 0xff; |
1571 | items = 0; |
1572 | } |
1573 | } |
1574 | } |
1575 | else { |
1576 | for (len = 0; len++ < aint;) { |
1577 | if (*str++ & 1) |
1578 | items |= 128; |
1579 | if (len & 7) |
1580 | items >>= 1; |
1581 | else { |
1582 | *aptr++ = items & 0xff; |
1583 | items = 0; |
1584 | } |
1585 | } |
1586 | } |
1587 | if (aint & 7) { |
1588 | if (datumtype == 'B') |
1589 | items <<= 7 - (aint & 7); |
1590 | else |
1591 | items >>= 7 - (aint & 7); |
1592 | *aptr++ = items & 0xff; |
1593 | } |
1594 | str = SvPVX(cat) + SvCUR(cat); |
1595 | while (aptr <= str) |
1596 | *aptr++ = '\0'; |
1597 | |
1598 | items = saveitems; |
1599 | } |
1600 | break; |
1601 | case 'H': |
1602 | case 'h': |
1603 | { |
1604 | register char *str; |
1605 | I32 saveitems; |
1606 | |
1607 | fromstr = NEXTFROM; |
1608 | saveitems = items; |
1609 | str = SvPV(fromstr, fromlen); |
18529408 |
1610 | if (star > 0) |
a6ec74c1 |
1611 | len = fromlen; |
1612 | aint = SvCUR(cat); |
1613 | SvCUR(cat) += (len+1)/2; |
1614 | SvGROW(cat, SvCUR(cat) + 1); |
1615 | aptr = SvPVX(cat) + aint; |
1616 | if (len > fromlen) |
1617 | len = fromlen; |
1618 | aint = len; |
1619 | items = 0; |
1620 | if (datumtype == 'H') { |
1621 | for (len = 0; len++ < aint;) { |
1622 | if (isALPHA(*str)) |
1623 | items |= ((*str++ & 15) + 9) & 15; |
1624 | else |
1625 | items |= *str++ & 15; |
1626 | if (len & 1) |
1627 | items <<= 4; |
1628 | else { |
1629 | *aptr++ = items & 0xff; |
1630 | items = 0; |
1631 | } |
1632 | } |
1633 | } |
1634 | else { |
1635 | for (len = 0; len++ < aint;) { |
1636 | if (isALPHA(*str)) |
1637 | items |= (((*str++ & 15) + 9) & 15) << 4; |
1638 | else |
1639 | items |= (*str++ & 15) << 4; |
1640 | if (len & 1) |
1641 | items >>= 4; |
1642 | else { |
1643 | *aptr++ = items & 0xff; |
1644 | items = 0; |
1645 | } |
1646 | } |
1647 | } |
1648 | if (aint & 1) |
1649 | *aptr++ = items & 0xff; |
1650 | str = SvPVX(cat) + SvCUR(cat); |
1651 | while (aptr <= str) |
1652 | *aptr++ = '\0'; |
1653 | |
1654 | items = saveitems; |
1655 | } |
1656 | break; |
1657 | case 'C': |
1658 | case 'c': |
1659 | while (len-- > 0) { |
1660 | fromstr = NEXTFROM; |
1661 | switch (datumtype) { |
1662 | case 'C': |
1663 | aint = SvIV(fromstr); |
1664 | if ((aint < 0 || aint > 255) && |
1665 | ckWARN(WARN_PACK)) |
1666 | Perl_warner(aTHX_ WARN_PACK, |
1667 | "Character in \"C\" format wrapped"); |
1668 | achar = aint & 255; |
1669 | sv_catpvn(cat, &achar, sizeof(char)); |
1670 | break; |
1671 | case 'c': |
1672 | aint = SvIV(fromstr); |
1673 | if ((aint < -128 || aint > 127) && |
1674 | ckWARN(WARN_PACK)) |
1675 | Perl_warner(aTHX_ WARN_PACK, |
1676 | "Character in \"c\" format wrapped"); |
1677 | achar = aint & 255; |
1678 | sv_catpvn(cat, &achar, sizeof(char)); |
1679 | break; |
1680 | } |
1681 | } |
1682 | break; |
1683 | case 'U': |
1684 | while (len-- > 0) { |
1685 | fromstr = NEXTFROM; |
e87322b2 |
1686 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
a6ec74c1 |
1687 | SvGROW(cat, SvCUR(cat) + UTF8_MAXLEN + 1); |
1688 | SvCUR_set(cat, (char*)uvchr_to_utf8((U8*)SvEND(cat),auint) |
1689 | - SvPVX(cat)); |
1690 | } |
1691 | *SvEND(cat) = '\0'; |
1692 | break; |
1693 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
1694 | case 'f': |
1695 | case 'F': |
1696 | while (len-- > 0) { |
1697 | fromstr = NEXTFROM; |
1698 | afloat = (float)SvNV(fromstr); |
1699 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
1700 | } |
1701 | break; |
1702 | case 'd': |
1703 | case 'D': |
1704 | while (len-- > 0) { |
1705 | fromstr = NEXTFROM; |
1706 | adouble = (double)SvNV(fromstr); |
1707 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
1708 | } |
1709 | break; |
1710 | case 'n': |
1711 | while (len-- > 0) { |
1712 | fromstr = NEXTFROM; |
1713 | ashort = (I16)SvIV(fromstr); |
1714 | #ifdef HAS_HTONS |
1715 | ashort = PerlSock_htons(ashort); |
1716 | #endif |
1717 | CAT16(cat, &ashort); |
1718 | } |
1719 | break; |
1720 | case 'v': |
1721 | while (len-- > 0) { |
1722 | fromstr = NEXTFROM; |
1723 | ashort = (I16)SvIV(fromstr); |
1724 | #ifdef HAS_HTOVS |
1725 | ashort = htovs(ashort); |
1726 | #endif |
1727 | CAT16(cat, &ashort); |
1728 | } |
1729 | break; |
1730 | case 'S': |
1731 | #if SHORTSIZE != SIZE16 |
1732 | if (natint) { |
1733 | unsigned short aushort; |
1734 | |
1735 | while (len-- > 0) { |
1736 | fromstr = NEXTFROM; |
1737 | aushort = SvUV(fromstr); |
1738 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
1739 | } |
1740 | } |
1741 | else |
1742 | #endif |
1743 | { |
1744 | U16 aushort; |
1745 | |
1746 | while (len-- > 0) { |
1747 | fromstr = NEXTFROM; |
1748 | aushort = (U16)SvUV(fromstr); |
1749 | CAT16(cat, &aushort); |
1750 | } |
1751 | |
1752 | } |
1753 | break; |
1754 | case 's': |
1755 | #if SHORTSIZE != SIZE16 |
1756 | if (natint) { |
1757 | short ashort; |
1758 | |
1759 | while (len-- > 0) { |
1760 | fromstr = NEXTFROM; |
1761 | ashort = SvIV(fromstr); |
1762 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
1763 | } |
1764 | } |
1765 | else |
1766 | #endif |
1767 | { |
1768 | while (len-- > 0) { |
1769 | fromstr = NEXTFROM; |
1770 | ashort = (I16)SvIV(fromstr); |
1771 | CAT16(cat, &ashort); |
1772 | } |
1773 | } |
1774 | break; |
1775 | case 'I': |
1776 | while (len-- > 0) { |
1777 | fromstr = NEXTFROM; |
1778 | auint = SvUV(fromstr); |
1779 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
1780 | } |
1781 | break; |
1782 | case 'w': |
1783 | while (len-- > 0) { |
1784 | fromstr = NEXTFROM; |
1785 | adouble = Perl_floor(SvNV(fromstr)); |
1786 | |
1787 | if (adouble < 0) |
18529408 |
1788 | croak("Cannot compress negative numbers"); |
a6ec74c1 |
1789 | |
1790 | if ( |
1791 | #if UVSIZE > 4 && UVSIZE >= NVSIZE |
1792 | adouble <= 0xffffffff |
1793 | #else |
1794 | # ifdef CXUX_BROKEN_CONSTANT_CONVERT |
1795 | adouble <= UV_MAX_cxux |
1796 | # else |
1797 | adouble <= UV_MAX |
1798 | # endif |
1799 | #endif |
1800 | ) |
1801 | { |
1802 | char buf[1 + sizeof(UV)]; |
1803 | char *in = buf + sizeof(buf); |
1804 | UV auv = U_V(adouble); |
1805 | |
1806 | do { |
1807 | *--in = (auv & 0x7f) | 0x80; |
1808 | auv >>= 7; |
1809 | } while (auv); |
1810 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
1811 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
1812 | } |
1813 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ |
1814 | char *from, *result, *in; |
1815 | SV *norm; |
1816 | STRLEN len; |
1817 | bool done; |
1818 | |
1819 | /* Copy string and check for compliance */ |
1820 | from = SvPV(fromstr, len); |
1821 | if ((norm = is_an_int(from, len)) == NULL) |
18529408 |
1822 | croak("can compress only unsigned integer"); |
a6ec74c1 |
1823 | |
1824 | New('w', result, len, char); |
1825 | in = result + len; |
1826 | done = FALSE; |
1827 | while (!done) |
1828 | *--in = div128(norm, &done) | 0x80; |
1829 | result[len - 1] &= 0x7F; /* clear continue bit */ |
1830 | sv_catpvn(cat, in, (result + len) - in); |
1831 | Safefree(result); |
1832 | SvREFCNT_dec(norm); /* free norm */ |
1833 | } |
1834 | else if (SvNOKp(fromstr)) { |
1835 | char buf[sizeof(double) * 2]; /* 8/7 <= 2 */ |
1836 | char *in = buf + sizeof(buf); |
1837 | |
1838 | do { |
1839 | double next = floor(adouble / 128); |
1840 | *--in = (unsigned char)(adouble - (next * 128)) | 0x80; |
1841 | if (in <= buf) /* this cannot happen ;-) */ |
18529408 |
1842 | croak("Cannot compress integer"); |
a6ec74c1 |
1843 | adouble = next; |
1844 | } while (adouble > 0); |
1845 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
1846 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
1847 | } |
735b914b |
1848 | else { |
1849 | char *from, *result, *in; |
1850 | SV *norm; |
1851 | STRLEN len; |
1852 | bool done; |
1853 | |
1854 | /* Copy string and check for compliance */ |
1855 | from = SvPV(fromstr, len); |
1856 | if ((norm = is_an_int(from, len)) == NULL) |
18529408 |
1857 | croak("can compress only unsigned integer"); |
735b914b |
1858 | |
1859 | New('w', result, len, char); |
1860 | in = result + len; |
1861 | done = FALSE; |
1862 | while (!done) |
1863 | *--in = div128(norm, &done) | 0x80; |
1864 | result[len - 1] &= 0x7F; /* clear continue bit */ |
1865 | sv_catpvn(cat, in, (result + len) - in); |
1866 | Safefree(result); |
1867 | SvREFCNT_dec(norm); /* free norm */ |
1868 | } |
a6ec74c1 |
1869 | } |
1870 | break; |
1871 | case 'i': |
1872 | while (len-- > 0) { |
1873 | fromstr = NEXTFROM; |
1874 | aint = SvIV(fromstr); |
1875 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
1876 | } |
1877 | break; |
1878 | case 'N': |
1879 | while (len-- > 0) { |
1880 | fromstr = NEXTFROM; |
1881 | aulong = SvUV(fromstr); |
1882 | #ifdef HAS_HTONL |
1883 | aulong = PerlSock_htonl(aulong); |
1884 | #endif |
1885 | CAT32(cat, &aulong); |
1886 | } |
1887 | break; |
1888 | case 'V': |
1889 | while (len-- > 0) { |
1890 | fromstr = NEXTFROM; |
1891 | aulong = SvUV(fromstr); |
1892 | #ifdef HAS_HTOVL |
1893 | aulong = htovl(aulong); |
1894 | #endif |
1895 | CAT32(cat, &aulong); |
1896 | } |
1897 | break; |
1898 | case 'L': |
1899 | #if LONGSIZE != SIZE32 |
1900 | if (natint) { |
1901 | unsigned long aulong; |
1902 | |
1903 | while (len-- > 0) { |
1904 | fromstr = NEXTFROM; |
1905 | aulong = SvUV(fromstr); |
1906 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
1907 | } |
1908 | } |
1909 | else |
1910 | #endif |
1911 | { |
1912 | while (len-- > 0) { |
1913 | fromstr = NEXTFROM; |
1914 | aulong = SvUV(fromstr); |
1915 | CAT32(cat, &aulong); |
1916 | } |
1917 | } |
1918 | break; |
1919 | case 'l': |
1920 | #if LONGSIZE != SIZE32 |
1921 | if (natint) { |
1922 | long along; |
1923 | |
1924 | while (len-- > 0) { |
1925 | fromstr = NEXTFROM; |
1926 | along = SvIV(fromstr); |
1927 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
1928 | } |
1929 | } |
1930 | else |
1931 | #endif |
1932 | { |
1933 | while (len-- > 0) { |
1934 | fromstr = NEXTFROM; |
1935 | along = SvIV(fromstr); |
1936 | CAT32(cat, &along); |
1937 | } |
1938 | } |
1939 | break; |
1940 | #ifdef HAS_QUAD |
1941 | case 'Q': |
1942 | while (len-- > 0) { |
1943 | fromstr = NEXTFROM; |
1944 | auquad = (Uquad_t)SvUV(fromstr); |
1945 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
1946 | } |
1947 | break; |
1948 | case 'q': |
1949 | while (len-- > 0) { |
1950 | fromstr = NEXTFROM; |
1951 | aquad = (Quad_t)SvIV(fromstr); |
1952 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
1953 | } |
1954 | break; |
1955 | #endif |
1956 | case 'P': |
1957 | len = 1; /* assume SV is correct length */ |
1958 | /* FALL THROUGH */ |
1959 | case 'p': |
1960 | while (len-- > 0) { |
1961 | fromstr = NEXTFROM; |
1962 | if (fromstr == &PL_sv_undef) |
1963 | aptr = NULL; |
1964 | else { |
1965 | STRLEN n_a; |
1966 | /* XXX better yet, could spirit away the string to |
1967 | * a safe spot and hang on to it until the result |
1968 | * of pack() (and all copies of the result) are |
1969 | * gone. |
1970 | */ |
1971 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) |
1972 | || (SvPADTMP(fromstr) |
1973 | && !SvREADONLY(fromstr)))) |
1974 | { |
1975 | Perl_warner(aTHX_ WARN_PACK, |
1976 | "Attempt to pack pointer to temporary value"); |
1977 | } |
1978 | if (SvPOK(fromstr) || SvNIOK(fromstr)) |
1979 | aptr = SvPV(fromstr,n_a); |
1980 | else |
1981 | aptr = SvPV_force(fromstr,n_a); |
1982 | } |
1983 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
1984 | } |
1985 | break; |
1986 | case 'u': |
1987 | fromstr = NEXTFROM; |
1988 | aptr = SvPV(fromstr, fromlen); |
1989 | SvGROW(cat, fromlen * 4 / 3); |
19c9db5e |
1990 | if (len <= 2) |
a6ec74c1 |
1991 | len = 45; |
1992 | else |
1993 | len = len / 3 * 3; |
1994 | while (fromlen > 0) { |
1995 | I32 todo; |
1996 | |
1997 | if (fromlen > len) |
1998 | todo = len; |
1999 | else |
2000 | todo = fromlen; |
2001 | doencodes(cat, aptr, todo); |
2002 | fromlen -= todo; |
2003 | aptr += todo; |
2004 | } |
2005 | break; |
2006 | } |
2007 | } |
18529408 |
2008 | if (next_in_list) |
2009 | *next_in_list = beglist; |
2010 | } |
2011 | #undef NEXTFROM |
2012 | |
2013 | |
2014 | PP(pp_pack) |
2015 | { |
2016 | dSP; dMARK; dORIGMARK; dTARGET; |
2017 | register SV *cat = TARG; |
2018 | STRLEN fromlen; |
2019 | register char *pat = SvPVx(*++MARK, fromlen); |
2020 | register char *patend = pat + fromlen; |
2021 | |
2022 | MARK++; |
2023 | sv_setpvn(cat, "", 0); |
2024 | |
2025 | pack_cat(cat, pat, patend, MARK, SP + 1, NULL, 0); |
2026 | |
a6ec74c1 |
2027 | SvSETMAGIC(cat); |
2028 | SP = ORIGMARK; |
2029 | PUSHs(cat); |
2030 | RETURN; |
2031 | } |
a6ec74c1 |
2032 | |