Commit | Line | Data |
a6ec74c1 |
1 | /* pp_pack.c |
2 | * |
4bb101f2 |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
73cb7263 |
4 | * 2000, 2001, 2002, 2003, 2004, 2005, 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 | |
7212898e |
34 | #if PERL_VERSION >= 9 |
35 | #define PERL_PACK_CAN_BYTEORDER |
36 | #define PERL_PACK_CAN_SHRIEKSIGN |
37 | #endif |
38 | |
a6ec74c1 |
39 | /* |
a6ec74c1 |
40 | * Offset for integer pack/unpack. |
41 | * |
42 | * On architectures where I16 and I32 aren't really 16 and 32 bits, |
43 | * which for now are all Crays, pack and unpack have to play games. |
44 | */ |
45 | |
46 | /* |
47 | * These values are required for portability of pack() output. |
48 | * If they're not right on your machine, then pack() and unpack() |
49 | * wouldn't work right anyway; you'll need to apply the Cray hack. |
50 | * (I'd like to check them with #if, but you can't use sizeof() in |
51 | * the preprocessor.) --??? |
52 | */ |
53 | /* |
54 | The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE |
55 | defines are now in config.h. --Andy Dougherty April 1998 |
56 | */ |
57 | #define SIZE16 2 |
58 | #define SIZE32 4 |
59 | |
60 | /* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack(). |
61 | --jhi Feb 1999 */ |
62 | |
1109a392 |
63 | #if U16SIZE > SIZE16 || U32SIZE > SIZE32 |
64 | # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */ |
a6ec74c1 |
65 | # define OFF16(p) (char*)(p) |
66 | # define OFF32(p) (char*)(p) |
67 | # else |
1109a392 |
68 | # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */ |
a6ec74c1 |
69 | # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16)) |
70 | # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32)) |
71 | # else |
72 | }}}} bad cray byte order |
73 | # endif |
74 | # endif |
75 | # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char)) |
76 | # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char)) |
77 | # define COPYNN(s,p,n) (*(p) = 0, Copy(s, (char *)(p), n, char)) |
78 | # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16) |
79 | # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32) |
80 | #else |
81 | # define COPY16(s,p) Copy(s, p, SIZE16, char) |
82 | # define COPY32(s,p) Copy(s, p, SIZE32, char) |
83 | # define COPYNN(s,p,n) Copy(s, (char *)(p), n, char) |
84 | # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16) |
85 | # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32) |
86 | #endif |
87 | |
49704364 |
88 | /* Avoid stack overflow due to pathological templates. 100 should be plenty. */ |
89 | #define MAX_SUB_TEMPLATE_LEVEL 100 |
90 | |
66c611c5 |
91 | /* flags (note that type modifiers can also be used as flags!) */ |
49704364 |
92 | #define FLAG_UNPACK_ONLY_ONE 0x10 |
93 | #define FLAG_UNPACK_DO_UTF8 0x08 |
94 | #define FLAG_SLASH 0x04 |
95 | #define FLAG_COMMA 0x02 |
96 | #define FLAG_PACK 0x01 |
97 | |
a6ec74c1 |
98 | STATIC SV * |
99 | S_mul128(pTHX_ SV *sv, U8 m) |
100 | { |
101 | STRLEN len; |
102 | char *s = SvPV(sv, len); |
103 | char *t; |
104 | U32 i = 0; |
105 | |
106 | if (!strnEQ(s, "0000", 4)) { /* need to grow sv */ |
107 | SV *tmpNew = newSVpvn("0000000000", 10); |
108 | |
109 | sv_catsv(tmpNew, sv); |
110 | SvREFCNT_dec(sv); /* free old sv */ |
111 | sv = tmpNew; |
112 | s = SvPV(sv, len); |
113 | } |
114 | t = s + len - 1; |
115 | while (!*t) /* trailing '\0'? */ |
116 | t--; |
117 | while (t > s) { |
118 | i = ((*t - '0') << 7) + m; |
eb160463 |
119 | *(t--) = '0' + (char)(i % 10); |
120 | m = (char)(i / 10); |
a6ec74c1 |
121 | } |
122 | return (sv); |
123 | } |
124 | |
125 | /* Explosives and implosives. */ |
126 | |
127 | #if 'I' == 73 && 'J' == 74 |
128 | /* On an ASCII/ISO kind of system */ |
129 | #define ISUUCHAR(ch) ((ch) >= ' ' && (ch) < 'a') |
130 | #else |
131 | /* |
132 | Some other sort of character set - use memchr() so we don't match |
133 | the null byte. |
134 | */ |
135 | #define ISUUCHAR(ch) (memchr(PL_uuemap, (ch), sizeof(PL_uuemap)-1) || (ch) == ' ') |
136 | #endif |
137 | |
66c611c5 |
138 | /* type modifiers */ |
62f95557 |
139 | #define TYPE_IS_SHRIEKING 0x100 |
1109a392 |
140 | #define TYPE_IS_BIG_ENDIAN 0x200 |
141 | #define TYPE_IS_LITTLE_ENDIAN 0x400 |
142 | #define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN) |
66c611c5 |
143 | #define TYPE_MODIFIERS(t) ((t) & ~0xFF) |
1109a392 |
144 | #define TYPE_NO_MODIFIERS(t) ((t) & 0xFF) |
145 | |
7212898e |
146 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
147 | #define SHRIEKING_ALLOWED_TYPES "sSiIlLxXnNvV" |
148 | #else |
149 | #define SHRIEKING_ALLOWED_TYPES "sSiIlLxX" |
150 | #endif |
151 | |
152 | #ifndef PERL_PACK_CAN_BYTEORDER |
153 | /* Put "can't" first because it is shorter */ |
154 | # define TYPE_ENDIANNESS(t) 0 |
155 | # define TYPE_NO_ENDIANNESS(t) (t) |
156 | |
157 | # define ENDIANNESS_ALLOWED_TYPES "" |
158 | |
159 | # define DO_BO_UNPACK(var, type) |
160 | # define DO_BO_PACK(var, type) |
161 | # define DO_BO_UNPACK_PTR(var, type, pre_cast) |
162 | # define DO_BO_PACK_PTR(var, type, pre_cast) |
163 | # define DO_BO_UNPACK_N(var, type) |
164 | # define DO_BO_PACK_N(var, type) |
165 | # define DO_BO_UNPACK_P(var) |
166 | # define DO_BO_PACK_P(var) |
66c611c5 |
167 | |
7212898e |
168 | #else |
169 | |
170 | # define TYPE_ENDIANNESS(t) ((t) & TYPE_ENDIANNESS_MASK) |
171 | # define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK) |
172 | |
173 | # define ENDIANNESS_ALLOWED_TYPES "sSiIlLqQjJfFdDpP(" |
174 | |
175 | # define DO_BO_UNPACK(var, type) \ |
1109a392 |
176 | STMT_START { \ |
66c611c5 |
177 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
178 | case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \ |
179 | case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \ |
180 | default: break; \ |
181 | } \ |
182 | } STMT_END |
183 | |
7212898e |
184 | # define DO_BO_PACK(var, type) \ |
1109a392 |
185 | STMT_START { \ |
66c611c5 |
186 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
187 | case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \ |
188 | case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \ |
189 | default: break; \ |
190 | } \ |
191 | } STMT_END |
192 | |
7212898e |
193 | # define DO_BO_UNPACK_PTR(var, type, pre_cast) \ |
1109a392 |
194 | STMT_START { \ |
66c611c5 |
195 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
196 | case TYPE_IS_BIG_ENDIAN: \ |
197 | var = (void *) my_betoh ## type ((pre_cast) var); \ |
198 | break; \ |
199 | case TYPE_IS_LITTLE_ENDIAN: \ |
200 | var = (void *) my_letoh ## type ((pre_cast) var); \ |
201 | break; \ |
202 | default: \ |
203 | break; \ |
204 | } \ |
205 | } STMT_END |
206 | |
7212898e |
207 | # define DO_BO_PACK_PTR(var, type, pre_cast) \ |
1109a392 |
208 | STMT_START { \ |
66c611c5 |
209 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
210 | case TYPE_IS_BIG_ENDIAN: \ |
211 | var = (void *) my_htobe ## type ((pre_cast) var); \ |
212 | break; \ |
213 | case TYPE_IS_LITTLE_ENDIAN: \ |
214 | var = (void *) my_htole ## type ((pre_cast) var); \ |
215 | break; \ |
216 | default: \ |
217 | break; \ |
218 | } \ |
219 | } STMT_END |
220 | |
7212898e |
221 | # define BO_CANT_DOIT(action, type) \ |
66c611c5 |
222 | STMT_START { \ |
223 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
224 | case TYPE_IS_BIG_ENDIAN: \ |
225 | Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \ |
226 | "platform", #action, #type); \ |
227 | break; \ |
228 | case TYPE_IS_LITTLE_ENDIAN: \ |
229 | Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \ |
230 | "platform", #action, #type); \ |
231 | break; \ |
232 | default: \ |
233 | break; \ |
234 | } \ |
235 | } STMT_END |
236 | |
7212898e |
237 | # if PTRSIZE == INTSIZE |
238 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int) |
239 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int) |
240 | # elif PTRSIZE == LONGSIZE |
241 | # define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long) |
242 | # define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long) |
243 | # else |
244 | # define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer) |
245 | # define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer) |
246 | # endif |
1109a392 |
247 | |
7212898e |
248 | # if defined(my_htolen) && defined(my_letohn) && \ |
1109a392 |
249 | defined(my_htoben) && defined(my_betohn) |
7212898e |
250 | # define DO_BO_UNPACK_N(var, type) \ |
1109a392 |
251 | STMT_START { \ |
66c611c5 |
252 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
253 | case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\ |
254 | case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\ |
255 | default: break; \ |
256 | } \ |
257 | } STMT_END |
258 | |
7212898e |
259 | # define DO_BO_PACK_N(var, type) \ |
1109a392 |
260 | STMT_START { \ |
66c611c5 |
261 | switch (TYPE_ENDIANNESS(datumtype)) { \ |
1109a392 |
262 | case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\ |
263 | case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\ |
264 | default: break; \ |
265 | } \ |
266 | } STMT_END |
7212898e |
267 | # else |
268 | # define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type) |
269 | # define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type) |
270 | # endif |
271 | |
1109a392 |
272 | #endif |
62f95557 |
273 | |
78d46eaa |
274 | #define PACK_SIZE_CANNOT_CSUM 0x80 |
a72c271b |
275 | #define PACK_SIZE_SPARE 0x40 |
78d46eaa |
276 | #define PACK_SIZE_MASK 0x3F |
277 | |
278 | |
279 | struct packsize_t { |
58c0bd94 |
280 | const unsigned char *array; |
78d46eaa |
281 | int first; |
282 | int size; |
283 | }; |
284 | |
285 | #define PACK_SIZE_NORMAL 0 |
286 | #define PACK_SIZE_SHRIEKING 1 |
287 | |
288 | /* These tables are regenerated by genpacksizetables.pl (and then hand pasted |
289 | in). You're unlikely ever to need to regenerate them. */ |
290 | #if 'J'-'I' == 1 |
291 | /* ASCII */ |
292 | unsigned char size_normal[53] = { |
293 | /* C */ sizeof(unsigned char), |
80a13697 |
294 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
78d46eaa |
295 | /* D */ LONG_DOUBLESIZE, |
80a13697 |
296 | #else |
297 | 0, |
298 | #endif |
78d46eaa |
299 | 0, |
300 | /* F */ NVSIZE, |
301 | 0, 0, |
302 | /* I */ sizeof(unsigned int), |
303 | /* J */ UVSIZE, |
304 | 0, |
305 | /* L */ SIZE32, |
306 | 0, |
307 | /* N */ SIZE32, |
308 | 0, 0, |
80a13697 |
309 | #if defined(HAS_QUAD) |
78d46eaa |
310 | /* Q */ sizeof(Uquad_t), |
80a13697 |
311 | #else |
312 | 0, |
313 | #endif |
78d46eaa |
314 | 0, |
315 | /* S */ SIZE16, |
316 | 0, |
317 | /* U */ sizeof(char), |
318 | /* V */ SIZE32, |
319 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
320 | /* c */ sizeof(char), |
321 | /* d */ sizeof(double), |
322 | 0, |
323 | /* f */ sizeof(float), |
324 | 0, 0, |
325 | /* i */ sizeof(int), |
326 | /* j */ IVSIZE, |
327 | 0, |
328 | /* l */ SIZE32, |
329 | 0, |
330 | /* n */ SIZE16, |
331 | 0, |
a72c271b |
332 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, |
80a13697 |
333 | #if defined(HAS_QUAD) |
78d46eaa |
334 | /* q */ sizeof(Quad_t), |
80a13697 |
335 | #else |
336 | 0, |
337 | #endif |
78d46eaa |
338 | 0, |
339 | /* s */ SIZE16, |
340 | 0, 0, |
341 | /* v */ SIZE16, |
7212898e |
342 | /* w */ sizeof(char) | PACK_SIZE_CANNOT_CSUM, |
78d46eaa |
343 | }; |
344 | unsigned char size_shrieking[46] = { |
345 | /* I */ sizeof(unsigned int), |
346 | 0, 0, |
347 | /* L */ sizeof(unsigned long), |
348 | 0, |
7212898e |
349 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
350 | /* N */ SIZE32, |
7212898e |
351 | #else |
352 | 0, |
353 | #endif |
78d46eaa |
354 | 0, 0, 0, 0, |
355 | /* S */ sizeof(unsigned short), |
356 | 0, 0, |
7212898e |
357 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
358 | /* V */ SIZE32, |
7212898e |
359 | #else |
360 | 0, |
361 | #endif |
78d46eaa |
362 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
363 | /* i */ sizeof(int), |
364 | 0, 0, |
365 | /* l */ sizeof(long), |
366 | 0, |
7212898e |
367 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
368 | /* n */ SIZE16, |
7212898e |
369 | #else |
370 | 0, |
371 | #endif |
78d46eaa |
372 | 0, 0, 0, 0, |
373 | /* s */ sizeof(short), |
374 | 0, 0, |
7212898e |
375 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
376 | /* v */ SIZE16 |
7212898e |
377 | #else |
378 | 0 |
379 | #endif |
78d46eaa |
380 | }; |
381 | struct packsize_t packsize[2] = { |
382 | {size_normal, 67, 53}, |
383 | {size_shrieking, 73, 46} |
384 | }; |
385 | #else |
386 | /* EBCDIC (or bust) */ |
387 | unsigned char size_normal[99] = { |
388 | /* c */ sizeof(char), |
389 | /* d */ sizeof(double), |
390 | 0, |
391 | /* f */ sizeof(float), |
392 | 0, 0, |
393 | /* i */ sizeof(int), |
394 | 0, 0, 0, 0, 0, 0, 0, |
395 | /* j */ IVSIZE, |
396 | 0, |
397 | /* l */ SIZE32, |
398 | 0, |
399 | /* n */ SIZE16, |
400 | 0, |
a72c271b |
401 | /* p */ sizeof(char *) | PACK_SIZE_CANNOT_CSUM, |
80a13697 |
402 | #if defined(HAS_QUAD) |
78d46eaa |
403 | /* q */ sizeof(Quad_t), |
80a13697 |
404 | #else |
405 | 0, |
406 | #endif |
78d46eaa |
407 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
408 | /* s */ SIZE16, |
409 | 0, 0, |
410 | /* v */ SIZE16, |
411 | /* w */ sizeof(char) | PACK_SIZE_CANNOT_CSUM, |
412 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
413 | 0, 0, |
414 | /* C */ sizeof(unsigned char), |
80a13697 |
415 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
78d46eaa |
416 | /* D */ LONG_DOUBLESIZE, |
80a13697 |
417 | #else |
418 | 0, |
419 | #endif |
78d46eaa |
420 | 0, |
421 | /* F */ NVSIZE, |
422 | 0, 0, |
423 | /* I */ sizeof(unsigned int), |
424 | 0, 0, 0, 0, 0, 0, 0, |
425 | /* J */ UVSIZE, |
426 | 0, |
427 | /* L */ SIZE32, |
428 | 0, |
429 | /* N */ SIZE32, |
430 | 0, 0, |
80a13697 |
431 | #if defined(HAS_QUAD) |
78d46eaa |
432 | /* Q */ sizeof(Uquad_t), |
80a13697 |
433 | #else |
434 | 0, |
435 | #endif |
78d46eaa |
436 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
437 | /* S */ SIZE16, |
438 | 0, |
439 | /* U */ sizeof(char), |
7212898e |
440 | /* V */ SIZE32, |
78d46eaa |
441 | }; |
442 | unsigned char size_shrieking[93] = { |
443 | /* i */ sizeof(int), |
444 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
445 | /* l */ sizeof(long), |
446 | 0, |
7212898e |
447 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
448 | /* n */ SIZE16, |
7212898e |
449 | #else |
450 | 0, |
451 | #endif |
78d46eaa |
452 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
453 | /* s */ sizeof(short), |
454 | 0, 0, |
7212898e |
455 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
456 | /* v */ SIZE16, |
7212898e |
457 | #else |
458 | 0, |
459 | #endif |
78d46eaa |
460 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
461 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
462 | /* I */ sizeof(unsigned int), |
463 | 0, 0, 0, 0, 0, 0, 0, 0, 0, |
464 | /* L */ sizeof(unsigned long), |
465 | 0, |
7212898e |
466 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
467 | /* N */ SIZE32, |
7212898e |
468 | #else |
469 | 0, |
470 | #endif |
78d46eaa |
471 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
472 | /* S */ sizeof(unsigned short), |
473 | 0, 0, |
7212898e |
474 | #if defined(PERL_PACK_CAN_SHRIEKSIGN) |
78d46eaa |
475 | /* V */ SIZE32 |
7212898e |
476 | #else |
477 | 0 |
478 | #endif |
78d46eaa |
479 | }; |
480 | struct packsize_t packsize[2] = { |
481 | {size_normal, 131, 99}, |
482 | {size_shrieking, 137, 93} |
483 | }; |
484 | #endif |
485 | |
486 | |
206947d2 |
487 | /* Returns the sizeof() struct described by pat */ |
028d1f6d |
488 | STATIC I32 |
49704364 |
489 | S_measure_struct(pTHX_ register tempsym_t* symptr) |
206947d2 |
490 | { |
49704364 |
491 | register I32 len = 0; |
206947d2 |
492 | register I32 total = 0; |
49704364 |
493 | int star; |
494 | |
206947d2 |
495 | register int size; |
496 | |
49704364 |
497 | while (next_symbol(symptr)) { |
80a13697 |
498 | int which = (symptr->code & TYPE_IS_SHRIEKING) |
499 | ? PACK_SIZE_SHRIEKING : PACK_SIZE_NORMAL; |
500 | int offset |
501 | = TYPE_NO_MODIFIERS(symptr->code) - packsize[which].first; |
206947d2 |
502 | |
49704364 |
503 | switch( symptr->howlen ){ |
504 | case e_no_len: |
505 | case e_number: |
506 | len = symptr->length; |
507 | break; |
508 | case e_star: |
509 | Perl_croak(aTHX_ "Within []-length '*' not allowed in %s", |
510 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
511 | break; |
512 | } |
513 | |
80a13697 |
514 | if ((offset >= 0) && (offset < packsize[which].size)) |
515 | size = packsize[which].array[offset] & PACK_SIZE_MASK; |
516 | else |
206947d2 |
517 | size = 0; |
78d46eaa |
518 | |
80a13697 |
519 | if (!size) { |
520 | /* endianness doesn't influence the size of a type */ |
521 | switch(TYPE_NO_ENDIANNESS(symptr->code)) { |
522 | default: |
523 | Perl_croak(aTHX_ "Invalid type '%c' in %s", |
524 | (int)TYPE_NO_MODIFIERS(symptr->code), |
525 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
526 | case '@': |
527 | case '/': |
528 | case 'U': /* XXXX Is it correct? */ |
529 | case 'w': |
530 | case 'u': |
531 | Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s", |
532 | (int)symptr->code, |
533 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
534 | case '%': |
535 | size = 0; |
536 | break; |
537 | case '(': |
538 | { |
539 | tempsym_t savsym = *symptr; |
540 | symptr->patptr = savsym.grpbeg; |
541 | symptr->patend = savsym.grpend; |
542 | /* XXXX Theoretically, we need to measure many times at |
543 | different positions, since the subexpression may contain |
544 | alignment commands, but be not of aligned length. |
545 | Need to detect this and croak(). */ |
546 | size = measure_struct(symptr); |
547 | *symptr = savsym; |
548 | break; |
549 | } |
550 | case 'X' | TYPE_IS_SHRIEKING: |
551 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. |
552 | */ |
553 | if (!len) /* Avoid division by 0 */ |
554 | len = 1; |
555 | len = total % len; /* Assumed: the start is aligned. */ |
556 | /* FALL THROUGH */ |
557 | case 'X': |
558 | size = -1; |
559 | if (total < len) |
560 | Perl_croak(aTHX_ "'X' outside of string in %s", |
561 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
562 | break; |
563 | case 'x' | TYPE_IS_SHRIEKING: |
564 | if (!len) /* Avoid division by 0 */ |
565 | len = 1; |
566 | star = total % len; /* Assumed: the start is aligned. */ |
567 | if (star) /* Other portable ways? */ |
568 | len = len - star; |
569 | else |
570 | len = 0; |
571 | /* FALL THROUGH */ |
572 | case 'x': |
573 | case 'A': |
574 | case 'Z': |
575 | case 'a': |
576 | case 'c': |
577 | case 'C': |
578 | size = 1; |
579 | break; |
580 | case 'B': |
581 | case 'b': |
582 | len = (len + 7)/8; |
583 | size = 1; |
584 | break; |
585 | case 'H': |
586 | case 'h': |
587 | len = (len + 1)/2; |
588 | size = 1; |
589 | break; |
78d46eaa |
590 | |
80a13697 |
591 | case 'P': |
592 | len = 1; |
593 | size = sizeof(char*); |
78d46eaa |
594 | break; |
595 | } |
206947d2 |
596 | } |
597 | total += len * size; |
598 | } |
599 | return total; |
600 | } |
601 | |
49704364 |
602 | |
603 | /* locate matching closing parenthesis or bracket |
604 | * returns char pointer to char after match, or NULL |
605 | */ |
606 | STATIC char * |
607 | S_group_end(pTHX_ register char *patptr, register char *patend, char ender) |
18529408 |
608 | { |
49704364 |
609 | while (patptr < patend) { |
610 | char c = *patptr++; |
611 | |
612 | if (isSPACE(c)) |
613 | continue; |
614 | else if (c == ender) |
615 | return patptr-1; |
616 | else if (c == '#') { |
617 | while (patptr < patend && *patptr != '\n') |
618 | patptr++; |
619 | continue; |
620 | } else if (c == '(') |
621 | patptr = group_end(patptr, patend, ')') + 1; |
622 | else if (c == '[') |
623 | patptr = group_end(patptr, patend, ']') + 1; |
18529408 |
624 | } |
49704364 |
625 | Perl_croak(aTHX_ "No group ending character '%c' found in template", |
626 | ender); |
627 | return 0; |
18529408 |
628 | } |
629 | |
49704364 |
630 | |
631 | /* Convert unsigned decimal number to binary. |
632 | * Expects a pointer to the first digit and address of length variable |
633 | * Advances char pointer to 1st non-digit char and returns number |
634 | */ |
18529408 |
635 | STATIC char * |
49704364 |
636 | S_get_num(pTHX_ register char *patptr, I32 *lenptr ) |
637 | { |
638 | I32 len = *patptr++ - '0'; |
639 | while (isDIGIT(*patptr)) { |
640 | if (len >= 0x7FFFFFFF/10) |
641 | Perl_croak(aTHX_ "pack/unpack repeat count overflow"); |
642 | len = (len * 10) + (*patptr++ - '0'); |
643 | } |
644 | *lenptr = len; |
645 | return patptr; |
646 | } |
647 | |
648 | /* The marvellous template parsing routine: Using state stored in *symptr, |
649 | * locates next template code and count |
650 | */ |
651 | STATIC bool |
652 | S_next_symbol(pTHX_ register tempsym_t* symptr ) |
18529408 |
653 | { |
49704364 |
654 | register char* patptr = symptr->patptr; |
655 | register char* patend = symptr->patend; |
656 | |
657 | symptr->flags &= ~FLAG_SLASH; |
658 | |
659 | while (patptr < patend) { |
660 | if (isSPACE(*patptr)) |
661 | patptr++; |
662 | else if (*patptr == '#') { |
663 | patptr++; |
664 | while (patptr < patend && *patptr != '\n') |
665 | patptr++; |
666 | if (patptr < patend) |
667 | patptr++; |
668 | } else { |
669 | /* We should have found a template code */ |
670 | I32 code = *patptr++ & 0xFF; |
66c611c5 |
671 | U32 inherited_modifiers = 0; |
49704364 |
672 | |
673 | if (code == ','){ /* grandfather in commas but with a warning */ |
674 | if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){ |
675 | symptr->flags |= FLAG_COMMA; |
676 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
677 | "Invalid type ',' in %s", |
678 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
679 | } |
680 | continue; |
681 | } |
682 | |
683 | /* for '(', skip to ')' */ |
684 | if (code == '(') { |
685 | if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' ) |
686 | Perl_croak(aTHX_ "()-group starts with a count in %s", |
687 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
688 | symptr->grpbeg = patptr; |
689 | patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') ); |
690 | if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL ) |
691 | Perl_croak(aTHX_ "Too deeply nested ()-groups in %s", |
692 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
693 | } |
694 | |
66c611c5 |
695 | /* look for group modifiers to inherit */ |
696 | if (TYPE_ENDIANNESS(symptr->flags)) { |
697 | if (strchr(ENDIANNESS_ALLOWED_TYPES, TYPE_NO_MODIFIERS(code))) |
698 | inherited_modifiers |= TYPE_ENDIANNESS(symptr->flags); |
699 | } |
700 | |
1109a392 |
701 | /* look for modifiers */ |
702 | while (patptr < patend) { |
703 | const char *allowed; |
704 | I32 modifier = 0; |
705 | switch (*patptr) { |
706 | case '!': |
707 | modifier = TYPE_IS_SHRIEKING; |
7212898e |
708 | allowed = SHRIEKING_ALLOWED_TYPES; |
1109a392 |
709 | break; |
7212898e |
710 | #ifdef PERL_PACK_CAN_BYTEORDER |
1109a392 |
711 | case '>': |
712 | modifier = TYPE_IS_BIG_ENDIAN; |
66c611c5 |
713 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 |
714 | break; |
715 | case '<': |
716 | modifier = TYPE_IS_LITTLE_ENDIAN; |
66c611c5 |
717 | allowed = ENDIANNESS_ALLOWED_TYPES; |
1109a392 |
718 | break; |
7212898e |
719 | #endif |
1109a392 |
720 | default: |
721 | break; |
722 | } |
66c611c5 |
723 | |
1109a392 |
724 | if (modifier == 0) |
725 | break; |
66c611c5 |
726 | |
1109a392 |
727 | if (!strchr(allowed, TYPE_NO_MODIFIERS(code))) |
728 | Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr, |
729 | allowed, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
66c611c5 |
730 | |
731 | if (TYPE_ENDIANNESS(code | modifier) == TYPE_ENDIANNESS_MASK) |
1109a392 |
732 | Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s", |
733 | (int) TYPE_NO_MODIFIERS(code), |
734 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
66c611c5 |
735 | else if (TYPE_ENDIANNESS(code | modifier | inherited_modifiers) == |
736 | TYPE_ENDIANNESS_MASK) |
737 | Perl_croak(aTHX_ "Can't use '%c' in a group with different byte-order in %s", |
738 | *patptr, symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
739 | |
1109a392 |
740 | if (ckWARN(WARN_UNPACK)) { |
741 | if (code & modifier) |
742 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
743 | "Duplicate modifier '%c' after '%c' in %s", |
744 | *patptr, (int) TYPE_NO_MODIFIERS(code), |
745 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
746 | } |
66c611c5 |
747 | |
1109a392 |
748 | code |= modifier; |
749 | patptr++; |
49704364 |
750 | } |
751 | |
66c611c5 |
752 | /* inherit modifiers */ |
753 | code |= inherited_modifiers; |
754 | |
49704364 |
755 | /* look for count and/or / */ |
756 | if (patptr < patend) { |
757 | if (isDIGIT(*patptr)) { |
758 | patptr = get_num( patptr, &symptr->length ); |
759 | symptr->howlen = e_number; |
760 | |
761 | } else if (*patptr == '*') { |
762 | patptr++; |
763 | symptr->howlen = e_star; |
764 | |
765 | } else if (*patptr == '[') { |
766 | char* lenptr = ++patptr; |
767 | symptr->howlen = e_number; |
768 | patptr = group_end( patptr, patend, ']' ) + 1; |
769 | /* what kind of [] is it? */ |
770 | if (isDIGIT(*lenptr)) { |
771 | lenptr = get_num( lenptr, &symptr->length ); |
772 | if( *lenptr != ']' ) |
773 | Perl_croak(aTHX_ "Malformed integer in [] in %s", |
774 | symptr->flags & FLAG_PACK ? "pack" : "unpack"); |
775 | } else { |
776 | tempsym_t savsym = *symptr; |
777 | symptr->patend = patptr-1; |
778 | symptr->patptr = lenptr; |
779 | savsym.length = measure_struct(symptr); |
780 | *symptr = savsym; |
781 | } |
782 | } else { |
783 | symptr->howlen = e_no_len; |
784 | symptr->length = 1; |
785 | } |
786 | |
787 | /* try to find / */ |
788 | while (patptr < patend) { |
789 | if (isSPACE(*patptr)) |
790 | patptr++; |
791 | else if (*patptr == '#') { |
792 | patptr++; |
793 | while (patptr < patend && *patptr != '\n') |
794 | patptr++; |
795 | if (patptr < patend) |
796 | patptr++; |
797 | } else { |
66c611c5 |
798 | if (*patptr == '/') { |
49704364 |
799 | symptr->flags |= FLAG_SLASH; |
800 | patptr++; |
66c611c5 |
801 | if (patptr < patend && |
802 | (isDIGIT(*patptr) || *patptr == '*' || *patptr == '[')) |
49704364 |
803 | Perl_croak(aTHX_ "'/' does not take a repeat count in %s", |
804 | symptr->flags & FLAG_PACK ? "pack" : "unpack" ); |
805 | } |
806 | break; |
807 | } |
18529408 |
808 | } |
49704364 |
809 | } else { |
810 | /* at end - no count, no / */ |
811 | symptr->howlen = e_no_len; |
812 | symptr->length = 1; |
813 | } |
814 | |
815 | symptr->code = code; |
816 | symptr->patptr = patptr; |
817 | return TRUE; |
18529408 |
818 | } |
49704364 |
819 | } |
820 | symptr->patptr = patptr; |
821 | return FALSE; |
18529408 |
822 | } |
823 | |
18529408 |
824 | /* |
825 | =for apidoc unpack_str |
826 | |
7accc089 |
827 | The engine implementing unpack() Perl function. Note: parameters strbeg, new_s |
828 | and ocnt are not used. This call should not be used, use unpackstring instead. |
18529408 |
829 | |
830 | =cut */ |
831 | |
832 | I32 |
833 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) |
a6ec74c1 |
834 | { |
49704364 |
835 | tempsym_t sym = { 0 }; |
836 | sym.patptr = pat; |
837 | sym.patend = patend; |
838 | sym.flags = flags; |
839 | |
840 | return unpack_rec(&sym, s, s, strend, NULL ); |
841 | } |
842 | |
7accc089 |
843 | /* |
844 | =for apidoc unpackstring |
845 | |
608d3aed |
846 | The engine implementing unpack() Perl function. C<unpackstring> puts the |
847 | extracted list items on the stack and returns the number of elements. |
848 | Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function. |
7accc089 |
849 | |
850 | =cut */ |
851 | |
852 | I32 |
853 | Perl_unpackstring(pTHX_ char *pat, register char *patend, register char *s, char *strend, U32 flags) |
854 | { |
855 | tempsym_t sym = { 0 }; |
856 | sym.patptr = pat; |
857 | sym.patend = patend; |
858 | sym.flags = flags; |
859 | |
860 | return unpack_rec(&sym, s, s, strend, NULL ); |
861 | } |
862 | |
49704364 |
863 | STATIC |
864 | I32 |
865 | S_unpack_rec(pTHX_ register tempsym_t* symptr, register char *s, char *strbeg, char *strend, char **new_s ) |
866 | { |
a6ec74c1 |
867 | dSP; |
a6ec74c1 |
868 | I32 datumtype; |
49704364 |
869 | register I32 len = 0; |
a6ec74c1 |
870 | register I32 bits = 0; |
871 | register char *str; |
18529408 |
872 | SV *sv; |
873 | I32 start_sp_offset = SP - PL_stack_base; |
49704364 |
874 | howlen_t howlen; |
a6ec74c1 |
875 | |
876 | /* These must not be in registers: */ |
ef108786 |
877 | I16 ai16; |
878 | U16 au16; |
879 | I32 ai32; |
880 | U32 au32; |
a6ec74c1 |
881 | #ifdef HAS_QUAD |
882 | Quad_t aquad; |
ef108786 |
883 | Uquad_t auquad; |
884 | #endif |
885 | #if SHORTSIZE != SIZE16 |
886 | short ashort; |
887 | unsigned short aushort; |
a6ec74c1 |
888 | #endif |
ef108786 |
889 | int aint; |
a6ec74c1 |
890 | unsigned int auint; |
ef108786 |
891 | long along; |
892 | #if LONGSIZE != SIZE32 |
893 | unsigned long aulong; |
a6ec74c1 |
894 | #endif |
895 | char *aptr; |
896 | float afloat; |
897 | double adouble; |
ef108786 |
898 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
899 | long double aldouble; |
900 | #endif |
901 | IV aiv; |
902 | UV auv; |
903 | NV anv; |
904 | |
a6ec74c1 |
905 | I32 checksum = 0; |
92d41999 |
906 | UV cuv = 0; |
a6ec74c1 |
907 | NV cdouble = 0.0; |
92d41999 |
908 | const int bits_in_uv = 8 * sizeof(cuv); |
49704364 |
909 | char* strrelbeg = s; |
910 | bool beyond = FALSE; |
911 | bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0; |
912 | |
49704364 |
913 | while (next_symbol(symptr)) { |
914 | datumtype = symptr->code; |
206947d2 |
915 | /* do first one only unless in list context |
916 | / is implemented by unpacking the count, then poping it from the |
917 | stack, so must check that we're not in the middle of a / */ |
49704364 |
918 | if ( unpack_only_one |
206947d2 |
919 | && (SP - PL_stack_base == start_sp_offset + 1) |
49704364 |
920 | && (datumtype != '/') ) /* XXX can this be omitted */ |
206947d2 |
921 | break; |
49704364 |
922 | |
923 | switch( howlen = symptr->howlen ){ |
924 | case e_no_len: |
925 | case e_number: |
926 | len = symptr->length; |
927 | break; |
928 | case e_star: |
929 | len = strend - strbeg; /* long enough */ |
930 | break; |
931 | } |
18529408 |
932 | |
a6ec74c1 |
933 | redo_switch: |
49704364 |
934 | beyond = s >= strend; |
78d46eaa |
935 | { |
936 | int which = (symptr->code & TYPE_IS_SHRIEKING) |
937 | ? PACK_SIZE_SHRIEKING : PACK_SIZE_NORMAL; |
a72c271b |
938 | const int rawtype = TYPE_NO_MODIFIERS(datumtype); |
939 | int offset = rawtype - packsize[which].first; |
78d46eaa |
940 | |
941 | if (offset >= 0 && offset < packsize[which].size) { |
942 | /* Data about this template letter */ |
943 | unsigned char data = packsize[which].array[offset]; |
944 | |
945 | if (data) { |
946 | /* data nonzero means we can process this letter. */ |
947 | long size = data & PACK_SIZE_MASK; |
948 | long howmany = (strend - s) / size; |
949 | if (len > howmany) |
950 | len = howmany; |
951 | |
a72c271b |
952 | /* In the old code, 'p' was the only type without shortcut |
953 | code to curtail unpacking to only one. As far as I can |
954 | see the only point of retaining this anomaly is to make |
955 | code such as $_ = unpack "p2", pack "pI", "Hi", 2 |
956 | continue to segfault. ie, it probably should be |
957 | construed as a bug. |
958 | */ |
959 | |
78d46eaa |
960 | if (!checksum || (data & PACK_SIZE_CANNOT_CSUM)) { |
961 | if (len && unpack_only_one && |
a72c271b |
962 | rawtype != 'p') |
78d46eaa |
963 | len = 1; |
964 | EXTEND(SP, len); |
965 | EXTEND_MORTAL(len); |
966 | } |
967 | } |
968 | } |
969 | } |
1109a392 |
970 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
971 | default: |
1109a392 |
972 | Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) ); |
49704364 |
973 | |
a6ec74c1 |
974 | case '%': |
49704364 |
975 | if (howlen == e_no_len) |
18529408 |
976 | len = 16; /* len is not specified */ |
a6ec74c1 |
977 | checksum = len; |
92d41999 |
978 | cuv = 0; |
a6ec74c1 |
979 | cdouble = 0; |
18529408 |
980 | continue; |
a6ec74c1 |
981 | break; |
18529408 |
982 | case '(': |
983 | { |
18529408 |
984 | char *ss = s; /* Move from register */ |
49704364 |
985 | tempsym_t savsym = *symptr; |
66c611c5 |
986 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
987 | symptr->flags |= group_modifiers; |
49704364 |
988 | symptr->patend = savsym.grpend; |
989 | symptr->level++; |
18529408 |
990 | PUTBACK; |
991 | while (len--) { |
49704364 |
992 | symptr->patptr = savsym.grpbeg; |
993 | unpack_rec(symptr, ss, strbeg, strend, &ss ); |
994 | if (ss == strend && savsym.howlen == e_star) |
995 | break; /* No way to continue */ |
18529408 |
996 | } |
997 | SPAGAIN; |
998 | s = ss; |
66c611c5 |
999 | symptr->flags &= ~group_modifiers; |
49704364 |
1000 | savsym.flags = symptr->flags; |
1001 | *symptr = savsym; |
18529408 |
1002 | break; |
1003 | } |
a6ec74c1 |
1004 | case '@': |
49704364 |
1005 | if (len > strend - strrelbeg) |
1006 | Perl_croak(aTHX_ "'@' outside of string in unpack"); |
1007 | s = strrelbeg + len; |
a6ec74c1 |
1008 | break; |
62f95557 |
1009 | case 'X' | TYPE_IS_SHRIEKING: |
1010 | if (!len) /* Avoid division by 0 */ |
1011 | len = 1; |
1012 | len = (s - strbeg) % len; |
1013 | /* FALL THROUGH */ |
a6ec74c1 |
1014 | case 'X': |
1015 | if (len > s - strbeg) |
49704364 |
1016 | Perl_croak(aTHX_ "'X' outside of string in unpack" ); |
a6ec74c1 |
1017 | s -= len; |
1018 | break; |
62f95557 |
1019 | case 'x' | TYPE_IS_SHRIEKING: |
1020 | if (!len) /* Avoid division by 0 */ |
1021 | len = 1; |
1022 | aint = (s - strbeg) % len; |
1023 | if (aint) /* Other portable ways? */ |
1024 | len = len - aint; |
1025 | else |
1026 | len = 0; |
1027 | /* FALL THROUGH */ |
a6ec74c1 |
1028 | case 'x': |
1029 | if (len > strend - s) |
49704364 |
1030 | Perl_croak(aTHX_ "'x' outside of string in unpack"); |
a6ec74c1 |
1031 | s += len; |
1032 | break; |
1033 | case '/': |
49704364 |
1034 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
1035 | break; |
a6ec74c1 |
1036 | case 'A': |
1037 | case 'Z': |
1038 | case 'a': |
1039 | if (len > strend - s) |
1040 | len = strend - s; |
1041 | if (checksum) |
1042 | goto uchar_checksum; |
c4c5f44a |
1043 | sv = newSVpvn(s, len); |
49704364 |
1044 | if (len > 0 && (datumtype == 'A' || datumtype == 'Z')) { |
a6ec74c1 |
1045 | aptr = s; /* borrow register */ |
1046 | if (datumtype == 'Z') { /* 'Z' strips stuff after first null */ |
1047 | s = SvPVX(sv); |
1048 | while (*s) |
1049 | s++; |
49704364 |
1050 | if (howlen == e_star) /* exact for 'Z*' */ |
d50dd4e4 |
1051 | len = s - SvPVX(sv) + 1; |
a6ec74c1 |
1052 | } |
1053 | else { /* 'A' strips both nulls and spaces */ |
1054 | s = SvPVX(sv) + len - 1; |
1055 | while (s >= SvPVX(sv) && (!*s || isSPACE(*s))) |
1056 | s--; |
1057 | *++s = '\0'; |
1058 | } |
1059 | SvCUR_set(sv, s - SvPVX(sv)); |
1060 | s = aptr; /* unborrow register */ |
1061 | } |
d50dd4e4 |
1062 | s += len; |
a6ec74c1 |
1063 | XPUSHs(sv_2mortal(sv)); |
1064 | break; |
1065 | case 'B': |
1066 | case 'b': |
49704364 |
1067 | if (howlen == e_star || len > (strend - s) * 8) |
a6ec74c1 |
1068 | len = (strend - s) * 8; |
1069 | if (checksum) { |
1070 | if (!PL_bitcount) { |
1071 | Newz(601, PL_bitcount, 256, char); |
1072 | for (bits = 1; bits < 256; bits++) { |
1073 | if (bits & 1) PL_bitcount[bits]++; |
1074 | if (bits & 2) PL_bitcount[bits]++; |
1075 | if (bits & 4) PL_bitcount[bits]++; |
1076 | if (bits & 8) PL_bitcount[bits]++; |
1077 | if (bits & 16) PL_bitcount[bits]++; |
1078 | if (bits & 32) PL_bitcount[bits]++; |
1079 | if (bits & 64) PL_bitcount[bits]++; |
1080 | if (bits & 128) PL_bitcount[bits]++; |
1081 | } |
1082 | } |
1083 | while (len >= 8) { |
92d41999 |
1084 | cuv += PL_bitcount[*(unsigned char*)s++]; |
a6ec74c1 |
1085 | len -= 8; |
1086 | } |
1087 | if (len) { |
0ed7c1bb |
1088 | bits = *s++; |
a6ec74c1 |
1089 | if (datumtype == 'b') { |
1090 | while (len-- > 0) { |
92d41999 |
1091 | if (bits & 1) cuv++; |
a6ec74c1 |
1092 | bits >>= 1; |
1093 | } |
1094 | } |
1095 | else { |
1096 | while (len-- > 0) { |
92d41999 |
1097 | if (bits & 128) cuv++; |
a6ec74c1 |
1098 | bits <<= 1; |
1099 | } |
1100 | } |
1101 | } |
1102 | break; |
1103 | } |
1104 | sv = NEWSV(35, len + 1); |
1105 | SvCUR_set(sv, len); |
1106 | SvPOK_on(sv); |
1107 | str = SvPVX(sv); |
1108 | if (datumtype == 'b') { |
1109 | aint = len; |
1110 | for (len = 0; len < aint; len++) { |
1111 | if (len & 7) /*SUPPRESS 595*/ |
1112 | bits >>= 1; |
1113 | else |
1114 | bits = *s++; |
1115 | *str++ = '0' + (bits & 1); |
1116 | } |
1117 | } |
1118 | else { |
1119 | aint = len; |
1120 | for (len = 0; len < aint; len++) { |
1121 | if (len & 7) |
1122 | bits <<= 1; |
1123 | else |
1124 | bits = *s++; |
1125 | *str++ = '0' + ((bits & 128) != 0); |
1126 | } |
1127 | } |
1128 | *str = '\0'; |
1129 | XPUSHs(sv_2mortal(sv)); |
1130 | break; |
1131 | case 'H': |
1132 | case 'h': |
49704364 |
1133 | if (howlen == e_star || len > (strend - s) * 2) |
a6ec74c1 |
1134 | len = (strend - s) * 2; |
1135 | sv = NEWSV(35, len + 1); |
1136 | SvCUR_set(sv, len); |
1137 | SvPOK_on(sv); |
1138 | str = SvPVX(sv); |
1139 | if (datumtype == 'h') { |
1140 | aint = len; |
1141 | for (len = 0; len < aint; len++) { |
1142 | if (len & 1) |
1143 | bits >>= 4; |
1144 | else |
1145 | bits = *s++; |
1146 | *str++ = PL_hexdigit[bits & 15]; |
1147 | } |
1148 | } |
1149 | else { |
1150 | aint = len; |
1151 | for (len = 0; len < aint; len++) { |
1152 | if (len & 1) |
1153 | bits <<= 4; |
1154 | else |
1155 | bits = *s++; |
1156 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
1157 | } |
1158 | } |
1159 | *str = '\0'; |
1160 | XPUSHs(sv_2mortal(sv)); |
1161 | break; |
1162 | case 'c': |
73cb7263 |
1163 | while (len-- > 0) { |
1164 | aint = *s++; |
1165 | if (aint >= 128) /* fake up signed chars */ |
1166 | aint -= 256; |
1167 | if (!checksum) { |
ac7f3b1b |
1168 | PUSHs(sv_2mortal(newSViv((IV)aint))); |
a6ec74c1 |
1169 | } |
73cb7263 |
1170 | else if (checksum > bits_in_uv) |
1171 | cdouble += (NV)aint; |
1172 | else |
1173 | cuv += aint; |
a6ec74c1 |
1174 | } |
1175 | break; |
1176 | case 'C': |
35bcd338 |
1177 | unpack_C: /* unpack U will jump here if not UTF-8 */ |
1178 | if (len == 0) { |
49704364 |
1179 | symptr->flags &= ~FLAG_UNPACK_DO_UTF8; |
35bcd338 |
1180 | break; |
1181 | } |
a6ec74c1 |
1182 | if (checksum) { |
1183 | uchar_checksum: |
1184 | while (len-- > 0) { |
1185 | auint = *s++ & 255; |
92d41999 |
1186 | cuv += auint; |
a6ec74c1 |
1187 | } |
1188 | } |
1189 | else { |
a6ec74c1 |
1190 | while (len-- > 0) { |
1191 | auint = *s++ & 255; |
ac7f3b1b |
1192 | PUSHs(sv_2mortal(newSViv((IV)auint))); |
a6ec74c1 |
1193 | } |
1194 | } |
1195 | break; |
1196 | case 'U': |
35bcd338 |
1197 | if (len == 0) { |
49704364 |
1198 | symptr->flags |= FLAG_UNPACK_DO_UTF8; |
35bcd338 |
1199 | break; |
1200 | } |
49704364 |
1201 | if ((symptr->flags & FLAG_UNPACK_DO_UTF8) == 0) |
35bcd338 |
1202 | goto unpack_C; |
73cb7263 |
1203 | while (len-- > 0 && s < strend) { |
1204 | STRLEN alen; |
1205 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANYUV)); |
1206 | along = alen; |
1207 | s += along; |
1208 | if (!checksum) { |
ac7f3b1b |
1209 | PUSHs(sv_2mortal(newSVuv((UV)auint))); |
a6ec74c1 |
1210 | } |
73cb7263 |
1211 | else if (checksum > bits_in_uv) |
1212 | cdouble += (NV)auint; |
1213 | else |
1214 | cuv += auint; |
a6ec74c1 |
1215 | } |
1216 | break; |
49704364 |
1217 | case 's' | TYPE_IS_SHRIEKING: |
1218 | #if SHORTSIZE != SIZE16 |
73cb7263 |
1219 | while (len-- > 0) { |
1220 | COPYNN(s, &ashort, sizeof(short)); |
1221 | DO_BO_UNPACK(ashort, s); |
1222 | s += sizeof(short); |
1223 | if (!checksum) { |
ac7f3b1b |
1224 | PUSHs(sv_2mortal(newSViv((IV)ashort))); |
49704364 |
1225 | } |
73cb7263 |
1226 | else if (checksum > bits_in_uv) |
1227 | cdouble += (NV)ashort; |
1228 | else |
1229 | cuv += ashort; |
49704364 |
1230 | } |
1231 | break; |
1232 | #else |
1233 | /* Fallthrough! */ |
a6ec74c1 |
1234 | #endif |
49704364 |
1235 | case 's': |
73cb7263 |
1236 | while (len-- > 0) { |
1237 | COPY16(s, &ai16); |
1238 | DO_BO_UNPACK(ai16, 16); |
1109a392 |
1239 | #if U16SIZE > SIZE16 |
73cb7263 |
1240 | if (ai16 > 32767) |
1241 | ai16 -= 65536; |
a6ec74c1 |
1242 | #endif |
73cb7263 |
1243 | s += SIZE16; |
1244 | if (!checksum) { |
ac7f3b1b |
1245 | PUSHs(sv_2mortal(newSViv((IV)ai16))); |
a6ec74c1 |
1246 | } |
73cb7263 |
1247 | else if (checksum > bits_in_uv) |
1248 | cdouble += (NV)ai16; |
1249 | else |
1250 | cuv += ai16; |
a6ec74c1 |
1251 | } |
1252 | break; |
49704364 |
1253 | case 'S' | TYPE_IS_SHRIEKING: |
1254 | #if SHORTSIZE != SIZE16 |
73cb7263 |
1255 | while (len-- > 0) { |
1256 | COPYNN(s, &aushort, sizeof(unsigned short)); |
1257 | DO_BO_UNPACK(aushort, s); |
1258 | s += sizeof(unsigned short); |
1259 | if (!checksum) { |
ac7f3b1b |
1260 | PUSHs(sv_2mortal(newSViv((UV)aushort))); |
49704364 |
1261 | } |
73cb7263 |
1262 | else if (checksum > bits_in_uv) |
1263 | cdouble += (NV)aushort; |
1264 | else |
1265 | cuv += aushort; |
49704364 |
1266 | } |
1267 | break; |
1268 | #else |
1269 | /* Fallhrough! */ |
1270 | #endif |
a6ec74c1 |
1271 | case 'v': |
1272 | case 'n': |
1273 | case 'S': |
73cb7263 |
1274 | while (len-- > 0) { |
1275 | COPY16(s, &au16); |
1276 | DO_BO_UNPACK(au16, 16); |
1277 | s += SIZE16; |
a6ec74c1 |
1278 | #ifdef HAS_NTOHS |
73cb7263 |
1279 | if (datumtype == 'n') |
1280 | au16 = PerlSock_ntohs(au16); |
a6ec74c1 |
1281 | #endif |
1282 | #ifdef HAS_VTOHS |
73cb7263 |
1283 | if (datumtype == 'v') |
1284 | au16 = vtohs(au16); |
a6ec74c1 |
1285 | #endif |
73cb7263 |
1286 | if (!checksum) { |
ac7f3b1b |
1287 | PUSHs(sv_2mortal(newSViv((UV)au16))); |
a6ec74c1 |
1288 | } |
73cb7263 |
1289 | else if (checksum > bits_in_uv) |
1290 | cdouble += (NV)au16; |
1291 | else |
1292 | cuv += au16; |
a6ec74c1 |
1293 | } |
1294 | break; |
7212898e |
1295 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
1296 | case 'v' | TYPE_IS_SHRIEKING: |
1297 | case 'n' | TYPE_IS_SHRIEKING: |
73cb7263 |
1298 | while (len-- > 0) { |
1299 | COPY16(s, &ai16); |
1300 | s += SIZE16; |
068bd2e7 |
1301 | #ifdef HAS_NTOHS |
73cb7263 |
1302 | if (datumtype == ('n' | TYPE_IS_SHRIEKING)) |
1303 | ai16 = (I16)PerlSock_ntohs((U16)ai16); |
068bd2e7 |
1304 | #endif |
1305 | #ifdef HAS_VTOHS |
73cb7263 |
1306 | if (datumtype == ('v' | TYPE_IS_SHRIEKING)) |
1307 | ai16 = (I16)vtohs((U16)ai16); |
068bd2e7 |
1308 | #endif |
73cb7263 |
1309 | if (!checksum) { |
ac7f3b1b |
1310 | PUSHs(sv_2mortal(newSViv((IV)ai16))); |
068bd2e7 |
1311 | } |
73cb7263 |
1312 | else if (checksum > bits_in_uv) |
1313 | cdouble += (NV)ai16; |
1314 | else |
1315 | cuv += ai16; |
068bd2e7 |
1316 | } |
1317 | break; |
7212898e |
1318 | #endif |
a6ec74c1 |
1319 | case 'i': |
49704364 |
1320 | case 'i' | TYPE_IS_SHRIEKING: |
73cb7263 |
1321 | while (len-- > 0) { |
1322 | Copy(s, &aint, 1, int); |
1323 | DO_BO_UNPACK(aint, i); |
1324 | s += sizeof(int); |
1325 | if (!checksum) { |
ac7f3b1b |
1326 | PUSHs(sv_2mortal(newSViv((IV)aint))); |
a6ec74c1 |
1327 | } |
73cb7263 |
1328 | else if (checksum > bits_in_uv) |
1329 | cdouble += (NV)aint; |
1330 | else |
1331 | cuv += aint; |
a6ec74c1 |
1332 | } |
1333 | break; |
1334 | case 'I': |
49704364 |
1335 | case 'I' | TYPE_IS_SHRIEKING: |
73cb7263 |
1336 | while (len-- > 0) { |
1337 | Copy(s, &auint, 1, unsigned int); |
1338 | DO_BO_UNPACK(auint, i); |
1339 | s += sizeof(unsigned int); |
1340 | if (!checksum) { |
ac7f3b1b |
1341 | PUSHs(sv_2mortal(newSVuv((UV)auint))); |
a6ec74c1 |
1342 | } |
73cb7263 |
1343 | else if (checksum > bits_in_uv) |
1344 | cdouble += (NV)auint; |
1345 | else |
1346 | cuv += auint; |
a6ec74c1 |
1347 | } |
1348 | break; |
92d41999 |
1349 | case 'j': |
73cb7263 |
1350 | while (len-- > 0) { |
1351 | Copy(s, &aiv, 1, IV); |
1109a392 |
1352 | #if IVSIZE == INTSIZE |
73cb7263 |
1353 | DO_BO_UNPACK(aiv, i); |
1109a392 |
1354 | #elif IVSIZE == LONGSIZE |
73cb7263 |
1355 | DO_BO_UNPACK(aiv, l); |
1109a392 |
1356 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
73cb7263 |
1357 | DO_BO_UNPACK(aiv, 64); |
1109a392 |
1358 | #endif |
73cb7263 |
1359 | s += IVSIZE; |
1360 | if (!checksum) { |
ac7f3b1b |
1361 | PUSHs(sv_2mortal(newSViv(aiv))); |
92d41999 |
1362 | } |
73cb7263 |
1363 | else if (checksum > bits_in_uv) |
1364 | cdouble += (NV)aiv; |
1365 | else |
1366 | cuv += aiv; |
92d41999 |
1367 | } |
1368 | break; |
1369 | case 'J': |
73cb7263 |
1370 | while (len-- > 0) { |
1371 | Copy(s, &auv, 1, UV); |
1109a392 |
1372 | #if UVSIZE == INTSIZE |
73cb7263 |
1373 | DO_BO_UNPACK(auv, i); |
1109a392 |
1374 | #elif UVSIZE == LONGSIZE |
73cb7263 |
1375 | DO_BO_UNPACK(auv, l); |
1109a392 |
1376 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
73cb7263 |
1377 | DO_BO_UNPACK(auv, 64); |
1109a392 |
1378 | #endif |
73cb7263 |
1379 | s += UVSIZE; |
1380 | if (!checksum) { |
ac7f3b1b |
1381 | PUSHs(sv_2mortal(newSVuv(auv))); |
92d41999 |
1382 | } |
73cb7263 |
1383 | else if (checksum > bits_in_uv) |
1384 | cdouble += (NV)auv; |
1385 | else |
1386 | cuv += auv; |
92d41999 |
1387 | } |
1388 | break; |
49704364 |
1389 | case 'l' | TYPE_IS_SHRIEKING: |
1390 | #if LONGSIZE != SIZE32 |
73cb7263 |
1391 | while (len-- > 0) { |
1392 | COPYNN(s, &along, sizeof(long)); |
1393 | DO_BO_UNPACK(along, l); |
1394 | s += sizeof(long); |
1395 | if (!checksum) { |
ac7f3b1b |
1396 | PUSHs(sv_2mortal(newSViv((IV)along))); |
49704364 |
1397 | } |
73cb7263 |
1398 | else if (checksum > bits_in_uv) |
1399 | cdouble += (NV)along; |
1400 | else |
1401 | cuv += along; |
49704364 |
1402 | } |
1403 | break; |
1404 | #else |
1405 | /* Fallthrough! */ |
a6ec74c1 |
1406 | #endif |
49704364 |
1407 | case 'l': |
73cb7263 |
1408 | while (len-- > 0) { |
1409 | COPY32(s, &ai32); |
1410 | DO_BO_UNPACK(ai32, 32); |
25a9bd2a |
1411 | #if U32SIZE > SIZE32 |
73cb7263 |
1412 | if (ai32 > 2147483647) |
1413 | ai32 -= 4294967296; |
a6ec74c1 |
1414 | #endif |
73cb7263 |
1415 | s += SIZE32; |
1416 | if (!checksum) { |
ac7f3b1b |
1417 | PUSHs(sv_2mortal(newSViv((IV)ai32))); |
a6ec74c1 |
1418 | } |
73cb7263 |
1419 | else if (checksum > bits_in_uv) |
1420 | cdouble += (NV)ai32; |
1421 | else |
1422 | cuv += ai32; |
a6ec74c1 |
1423 | } |
1424 | break; |
49704364 |
1425 | case 'L' | TYPE_IS_SHRIEKING: |
1426 | #if LONGSIZE != SIZE32 |
73cb7263 |
1427 | while (len-- > 0) { |
1428 | COPYNN(s, &aulong, sizeof(unsigned long)); |
1429 | DO_BO_UNPACK(aulong, l); |
1430 | s += sizeof(unsigned long); |
1431 | if (!checksum) { |
ac7f3b1b |
1432 | PUSHs(sv_2mortal(newSVuv((UV)aulong))); |
49704364 |
1433 | } |
73cb7263 |
1434 | else if (checksum > bits_in_uv) |
1435 | cdouble += (NV)aulong; |
1436 | else |
1437 | cuv += aulong; |
49704364 |
1438 | } |
1439 | break; |
1440 | #else |
1441 | /* Fall through! */ |
1442 | #endif |
a6ec74c1 |
1443 | case 'V': |
1444 | case 'N': |
1445 | case 'L': |
73cb7263 |
1446 | while (len-- > 0) { |
1447 | COPY32(s, &au32); |
1448 | DO_BO_UNPACK(au32, 32); |
1449 | s += SIZE32; |
a6ec74c1 |
1450 | #ifdef HAS_NTOHL |
73cb7263 |
1451 | if (datumtype == 'N') |
1452 | au32 = PerlSock_ntohl(au32); |
a6ec74c1 |
1453 | #endif |
1454 | #ifdef HAS_VTOHL |
73cb7263 |
1455 | if (datumtype == 'V') |
1456 | au32 = vtohl(au32); |
a6ec74c1 |
1457 | #endif |
73cb7263 |
1458 | if (!checksum) { |
ac7f3b1b |
1459 | PUSHs(sv_2mortal(newSVuv((UV)au32))); |
73cb7263 |
1460 | } |
1461 | else if (checksum > bits_in_uv) |
1462 | cdouble += (NV)au32; |
1463 | else |
1464 | cuv += au32; |
a6ec74c1 |
1465 | } |
1466 | break; |
7212898e |
1467 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
1468 | case 'V' | TYPE_IS_SHRIEKING: |
1469 | case 'N' | TYPE_IS_SHRIEKING: |
73cb7263 |
1470 | while (len-- > 0) { |
1471 | COPY32(s, &ai32); |
1472 | s += SIZE32; |
068bd2e7 |
1473 | #ifdef HAS_NTOHL |
73cb7263 |
1474 | if (datumtype == ('N' | TYPE_IS_SHRIEKING)) |
1475 | ai32 = (I32)PerlSock_ntohl((U32)ai32); |
068bd2e7 |
1476 | #endif |
1477 | #ifdef HAS_VTOHL |
73cb7263 |
1478 | if (datumtype == ('V' | TYPE_IS_SHRIEKING)) |
1479 | ai32 = (I32)vtohl((U32)ai32); |
068bd2e7 |
1480 | #endif |
73cb7263 |
1481 | if (!checksum) { |
ac7f3b1b |
1482 | PUSHs(sv_2mortal(newSViv((IV)ai32))); |
068bd2e7 |
1483 | } |
73cb7263 |
1484 | else if (checksum > bits_in_uv) |
1485 | cdouble += (NV)ai32; |
1486 | else |
1487 | cuv += ai32; |
068bd2e7 |
1488 | } |
1489 | break; |
7212898e |
1490 | #endif |
a6ec74c1 |
1491 | case 'p': |
a6ec74c1 |
1492 | while (len-- > 0) { |
5512a2f9 |
1493 | assert (sizeof(char*) <= strend - s); |
1494 | Copy(s, &aptr, 1, char*); |
1495 | DO_BO_UNPACK_P(aptr); |
1496 | s += sizeof(char*); |
c4c5f44a |
1497 | /* newSVpv generates undef if aptr is NULL */ |
1498 | PUSHs(sv_2mortal(newSVpv(aptr, 0))); |
a6ec74c1 |
1499 | } |
1500 | break; |
1501 | case 'w': |
a6ec74c1 |
1502 | { |
1503 | UV auv = 0; |
1504 | U32 bytes = 0; |
1505 | |
1506 | while ((len > 0) && (s < strend)) { |
1507 | auv = (auv << 7) | (*s & 0x7f); |
1508 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
1509 | if ((U8)(*s++) < 0x80) { |
1510 | bytes = 0; |
ac7f3b1b |
1511 | PUSHs(sv_2mortal(newSVuv(auv))); |
a6ec74c1 |
1512 | len--; |
1513 | auv = 0; |
1514 | } |
1515 | else if (++bytes >= sizeof(UV)) { /* promote to string */ |
1516 | char *t; |
1517 | STRLEN n_a; |
1518 | |
1519 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); |
1520 | while (s < strend) { |
eb160463 |
1521 | sv = mul128(sv, (U8)(*s & 0x7f)); |
a6ec74c1 |
1522 | if (!(*s++ & 0x80)) { |
1523 | bytes = 0; |
1524 | break; |
1525 | } |
1526 | } |
1527 | t = SvPV(sv, n_a); |
1528 | while (*t == '0') |
1529 | t++; |
1530 | sv_chop(sv, t); |
1531 | PUSHs(sv_2mortal(sv)); |
1532 | len--; |
1533 | auv = 0; |
1534 | } |
1535 | } |
1536 | if ((s >= strend) && bytes) |
49704364 |
1537 | Perl_croak(aTHX_ "Unterminated compressed integer in unpack"); |
a6ec74c1 |
1538 | } |
1539 | break; |
1540 | case 'P': |
49704364 |
1541 | if (symptr->howlen == e_star) |
1542 | Perl_croak(aTHX_ "'P' must have an explicit size in unpack"); |
a6ec74c1 |
1543 | EXTEND(SP, 1); |
1544 | if (sizeof(char*) > strend - s) |
1545 | break; |
1546 | else { |
1547 | Copy(s, &aptr, 1, char*); |
1109a392 |
1548 | DO_BO_UNPACK_P(aptr); |
a6ec74c1 |
1549 | s += sizeof(char*); |
1550 | } |
c4c5f44a |
1551 | /* newSVpvn generates undef if aptr is NULL */ |
1552 | PUSHs(sv_2mortal(newSVpvn(aptr, len))); |
a6ec74c1 |
1553 | break; |
1554 | #ifdef HAS_QUAD |
1555 | case 'q': |
73cb7263 |
1556 | while (len-- > 0) { |
c75bde89 |
1557 | assert (s + sizeof(Quad_t) <= strend); |
1558 | Copy(s, &aquad, 1, Quad_t); |
1559 | DO_BO_UNPACK(aquad, 64); |
1560 | s += sizeof(Quad_t); |
73cb7263 |
1561 | if (!checksum) { |
ac7f3b1b |
1562 | PUSHs(sv_2mortal((aquad >= IV_MIN && aquad <= IV_MAX) ? |
1563 | newSViv((IV)aquad) : newSVnv((NV)aquad))); |
fa8ec7c1 |
1564 | } |
73cb7263 |
1565 | else if (checksum > bits_in_uv) |
1566 | cdouble += (NV)aquad; |
1567 | else |
1568 | cuv += aquad; |
1569 | } |
a6ec74c1 |
1570 | break; |
1571 | case 'Q': |
73cb7263 |
1572 | while (len-- > 0) { |
c75bde89 |
1573 | assert (s + sizeof(Uquad_t) <= strend); |
1574 | Copy(s, &auquad, 1, Uquad_t); |
1575 | DO_BO_UNPACK(auquad, 64); |
1576 | s += sizeof(Uquad_t); |
73cb7263 |
1577 | if (!checksum) { |
ac7f3b1b |
1578 | PUSHs(sv_2mortal((auquad <= UV_MAX) ? |
1579 | newSVuv((UV)auquad) : newSVnv((NV)auquad))); |
a6ec74c1 |
1580 | } |
73cb7263 |
1581 | else if (checksum > bits_in_uv) |
1582 | cdouble += (NV)auquad; |
1583 | else |
1584 | cuv += auquad; |
a6ec74c1 |
1585 | } |
1586 | break; |
1587 | #endif |
1588 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
1589 | case 'f': |
73cb7263 |
1590 | while (len-- > 0) { |
1591 | Copy(s, &afloat, 1, float); |
1592 | DO_BO_UNPACK_N(afloat, float); |
1593 | s += sizeof(float); |
1594 | if (!checksum) { |
ac7f3b1b |
1595 | PUSHs(sv_2mortal(newSVnv((NV)afloat))); |
a6ec74c1 |
1596 | } |
73cb7263 |
1597 | else { |
1598 | cdouble += afloat; |
1599 | } |
a6ec74c1 |
1600 | } |
1601 | break; |
1602 | case 'd': |
73cb7263 |
1603 | while (len-- > 0) { |
1604 | Copy(s, &adouble, 1, double); |
1605 | DO_BO_UNPACK_N(adouble, double); |
1606 | s += sizeof(double); |
1607 | if (!checksum) { |
ac7f3b1b |
1608 | PUSHs(sv_2mortal(newSVnv((NV)adouble))); |
a6ec74c1 |
1609 | } |
73cb7263 |
1610 | else { |
1611 | cdouble += adouble; |
1612 | } |
a6ec74c1 |
1613 | } |
1614 | break; |
92d41999 |
1615 | case 'F': |
73cb7263 |
1616 | while (len-- > 0) { |
1617 | Copy(s, &anv, 1, NV); |
1618 | DO_BO_UNPACK_N(anv, NV); |
1619 | s += NVSIZE; |
1620 | if (!checksum) { |
ac7f3b1b |
1621 | PUSHs(sv_2mortal(newSVnv(anv))); |
92d41999 |
1622 | } |
73cb7263 |
1623 | else { |
1624 | cdouble += anv; |
1625 | } |
92d41999 |
1626 | } |
1627 | break; |
1628 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
1629 | case 'D': |
73cb7263 |
1630 | while (len-- > 0) { |
1631 | Copy(s, &aldouble, 1, long double); |
1632 | DO_BO_UNPACK_N(aldouble, long double); |
1633 | s += LONG_DOUBLESIZE; |
1634 | if (!checksum) { |
ac7f3b1b |
1635 | PUSHs(sv_2mortal(newSVnv((NV)aldouble))); |
92d41999 |
1636 | } |
73cb7263 |
1637 | else {cdouble += aldouble; |
1638 | } |
92d41999 |
1639 | } |
1640 | break; |
1641 | #endif |
a6ec74c1 |
1642 | case 'u': |
1643 | /* MKS: |
1644 | * Initialise the decode mapping. By using a table driven |
1645 | * algorithm, the code will be character-set independent |
1646 | * (and just as fast as doing character arithmetic) |
1647 | */ |
1648 | if (PL_uudmap['M'] == 0) { |
1649 | int i; |
1650 | |
1651 | for (i = 0; i < sizeof(PL_uuemap); i += 1) |
1652 | PL_uudmap[(U8)PL_uuemap[i]] = i; |
1653 | /* |
1654 | * Because ' ' and '`' map to the same value, |
1655 | * we need to decode them both the same. |
1656 | */ |
1657 | PL_uudmap[' '] = 0; |
1658 | } |
1659 | |
1660 | along = (strend - s) * 3 / 4; |
1661 | sv = NEWSV(42, along); |
1662 | if (along) |
1663 | SvPOK_on(sv); |
1664 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
1665 | I32 a, b, c, d; |
1666 | char hunk[4]; |
1667 | |
1668 | hunk[3] = '\0'; |
1669 | len = PL_uudmap[*(U8*)s++] & 077; |
1670 | while (len > 0) { |
1671 | if (s < strend && ISUUCHAR(*s)) |
1672 | a = PL_uudmap[*(U8*)s++] & 077; |
1673 | else |
1674 | a = 0; |
1675 | if (s < strend && ISUUCHAR(*s)) |
1676 | b = PL_uudmap[*(U8*)s++] & 077; |
1677 | else |
1678 | b = 0; |
1679 | if (s < strend && ISUUCHAR(*s)) |
1680 | c = PL_uudmap[*(U8*)s++] & 077; |
1681 | else |
1682 | c = 0; |
1683 | if (s < strend && ISUUCHAR(*s)) |
1684 | d = PL_uudmap[*(U8*)s++] & 077; |
1685 | else |
1686 | d = 0; |
eb160463 |
1687 | hunk[0] = (char)((a << 2) | (b >> 4)); |
1688 | hunk[1] = (char)((b << 4) | (c >> 2)); |
1689 | hunk[2] = (char)((c << 6) | d); |
a6ec74c1 |
1690 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
1691 | len -= 3; |
1692 | } |
1693 | if (*s == '\n') |
1694 | s++; |
92aa5668 |
1695 | else /* possible checksum byte */ |
1696 | if (s + 1 < strend && s[1] == '\n') |
1697 | s += 2; |
a6ec74c1 |
1698 | } |
1699 | XPUSHs(sv_2mortal(sv)); |
1700 | break; |
1701 | } |
49704364 |
1702 | |
a6ec74c1 |
1703 | if (checksum) { |
1109a392 |
1704 | if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) || |
92d41999 |
1705 | (checksum > bits_in_uv && |
1109a392 |
1706 | strchr("csSiIlLnNUvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) { |
a6ec74c1 |
1707 | NV trouble; |
1708 | |
fa8ec7c1 |
1709 | adouble = (NV) (1 << (checksum & 15)); |
a6ec74c1 |
1710 | while (checksum >= 16) { |
1711 | checksum -= 16; |
1712 | adouble *= 65536.0; |
1713 | } |
a6ec74c1 |
1714 | while (cdouble < 0.0) |
1715 | cdouble += adouble; |
1716 | cdouble = Perl_modf(cdouble / adouble, &trouble) * adouble; |
c4c5f44a |
1717 | sv = newSVnv(cdouble); |
a6ec74c1 |
1718 | } |
1719 | else { |
fa8ec7c1 |
1720 | if (checksum < bits_in_uv) { |
1721 | UV mask = ((UV)1 << checksum) - 1; |
92d41999 |
1722 | cuv &= mask; |
a6ec74c1 |
1723 | } |
c4c5f44a |
1724 | sv = newSVuv(cuv); |
a6ec74c1 |
1725 | } |
1726 | XPUSHs(sv_2mortal(sv)); |
1727 | checksum = 0; |
1728 | } |
49704364 |
1729 | |
1730 | if (symptr->flags & FLAG_SLASH){ |
1731 | if (SP - PL_stack_base - start_sp_offset <= 0) |
1732 | Perl_croak(aTHX_ "'/' must follow a numeric type in unpack"); |
1733 | if( next_symbol(symptr) ){ |
1734 | if( symptr->howlen == e_number ) |
1735 | Perl_croak(aTHX_ "Count after length/code in unpack" ); |
1736 | if( beyond ){ |
1737 | /* ...end of char buffer then no decent length available */ |
1738 | Perl_croak(aTHX_ "length/code after end of string in unpack" ); |
1739 | } else { |
1740 | /* take top of stack (hope it's numeric) */ |
1741 | len = POPi; |
1742 | if( len < 0 ) |
1743 | Perl_croak(aTHX_ "Negative '/' count in unpack" ); |
1744 | } |
1745 | } else { |
1746 | Perl_croak(aTHX_ "Code missing after '/' in unpack" ); |
1747 | } |
1748 | datumtype = symptr->code; |
1749 | goto redo_switch; |
1750 | } |
a6ec74c1 |
1751 | } |
49704364 |
1752 | |
18529408 |
1753 | if (new_s) |
1754 | *new_s = s; |
1755 | PUTBACK; |
1756 | return SP - PL_stack_base - start_sp_offset; |
1757 | } |
1758 | |
1759 | PP(pp_unpack) |
1760 | { |
1761 | dSP; |
bab9c0ac |
1762 | dPOPPOPssrl; |
18529408 |
1763 | I32 gimme = GIMME_V; |
1764 | STRLEN llen; |
1765 | STRLEN rlen; |
1766 | register char *pat = SvPV(left, llen); |
1767 | #ifdef PACKED_IS_OCTETS |
1768 | /* Packed side is assumed to be octets - so force downgrade if it |
1769 | has been UTF-8 encoded by accident |
1770 | */ |
1771 | register char *s = SvPVbyte(right, rlen); |
1772 | #else |
1773 | register char *s = SvPV(right, rlen); |
1774 | #endif |
1775 | char *strend = s + rlen; |
1776 | register char *patend = pat + llen; |
1777 | register I32 cnt; |
1778 | |
1779 | PUTBACK; |
7accc089 |
1780 | cnt = unpackstring(pat, patend, s, strend, |
49704364 |
1781 | ((gimme == G_SCALAR) ? FLAG_UNPACK_ONLY_ONE : 0) |
1782 | | (DO_UTF8(right) ? FLAG_UNPACK_DO_UTF8 : 0)); |
1783 | |
18529408 |
1784 | SPAGAIN; |
1785 | if ( !cnt && gimme == G_SCALAR ) |
1786 | PUSHs(&PL_sv_undef); |
a6ec74c1 |
1787 | RETURN; |
1788 | } |
1789 | |
1790 | STATIC void |
1791 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) |
1792 | { |
1793 | char hunk[5]; |
1794 | |
1795 | *hunk = PL_uuemap[len]; |
1796 | sv_catpvn(sv, hunk, 1); |
1797 | hunk[4] = '\0'; |
1798 | while (len > 2) { |
1799 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
1800 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; |
1801 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; |
1802 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; |
1803 | sv_catpvn(sv, hunk, 4); |
1804 | s += 3; |
1805 | len -= 3; |
1806 | } |
1807 | if (len > 0) { |
1808 | char r = (len > 1 ? s[1] : '\0'); |
1809 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
1810 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; |
1811 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; |
1812 | hunk[3] = PL_uuemap[0]; |
1813 | sv_catpvn(sv, hunk, 4); |
1814 | } |
1815 | sv_catpvn(sv, "\n", 1); |
1816 | } |
1817 | |
1818 | STATIC SV * |
1819 | S_is_an_int(pTHX_ char *s, STRLEN l) |
1820 | { |
1821 | STRLEN n_a; |
1822 | SV *result = newSVpvn(s, l); |
1823 | char *result_c = SvPV(result, n_a); /* convenience */ |
1824 | char *out = result_c; |
1825 | bool skip = 1; |
1826 | bool ignore = 0; |
1827 | |
1828 | while (*s) { |
1829 | switch (*s) { |
1830 | case ' ': |
1831 | break; |
1832 | case '+': |
1833 | if (!skip) { |
1834 | SvREFCNT_dec(result); |
1835 | return (NULL); |
1836 | } |
1837 | break; |
1838 | case '0': |
1839 | case '1': |
1840 | case '2': |
1841 | case '3': |
1842 | case '4': |
1843 | case '5': |
1844 | case '6': |
1845 | case '7': |
1846 | case '8': |
1847 | case '9': |
1848 | skip = 0; |
1849 | if (!ignore) { |
1850 | *(out++) = *s; |
1851 | } |
1852 | break; |
1853 | case '.': |
1854 | ignore = 1; |
1855 | break; |
1856 | default: |
1857 | SvREFCNT_dec(result); |
1858 | return (NULL); |
1859 | } |
1860 | s++; |
1861 | } |
1862 | *(out++) = '\0'; |
1863 | SvCUR_set(result, out - result_c); |
1864 | return (result); |
1865 | } |
1866 | |
1867 | /* pnum must be '\0' terminated */ |
1868 | STATIC int |
1869 | S_div128(pTHX_ SV *pnum, bool *done) |
1870 | { |
1871 | STRLEN len; |
1872 | char *s = SvPV(pnum, len); |
1873 | int m = 0; |
1874 | int r = 0; |
1875 | char *t = s; |
1876 | |
1877 | *done = 1; |
1878 | while (*t) { |
1879 | int i; |
1880 | |
1881 | i = m * 10 + (*t - '0'); |
1882 | m = i & 0x7F; |
1883 | r = (i >> 7); /* r < 10 */ |
1884 | if (r) { |
1885 | *done = 0; |
1886 | } |
1887 | *(t++) = '0' + r; |
1888 | } |
1889 | *(t++) = '\0'; |
1890 | SvCUR_set(pnum, (STRLEN) (t - s)); |
1891 | return (m); |
1892 | } |
1893 | |
49704364 |
1894 | |
a6ec74c1 |
1895 | |
18529408 |
1896 | /* |
1897 | =for apidoc pack_cat |
1898 | |
7accc089 |
1899 | The engine implementing pack() Perl function. Note: parameters next_in_list and |
1900 | flags are not used. This call should not be used; use packlist instead. |
18529408 |
1901 | |
1902 | =cut */ |
1903 | |
49704364 |
1904 | |
18529408 |
1905 | void |
1906 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) |
a6ec74c1 |
1907 | { |
49704364 |
1908 | tempsym_t sym = { 0 }; |
1909 | sym.patptr = pat; |
1910 | sym.patend = patend; |
7accc089 |
1911 | sym.flags = FLAG_PACK; |
1912 | |
1913 | (void)pack_rec( cat, &sym, beglist, endlist ); |
1914 | } |
1915 | |
1916 | |
1917 | /* |
1918 | =for apidoc packlist |
1919 | |
1920 | The engine implementing pack() Perl function. |
1921 | |
1922 | =cut */ |
1923 | |
1924 | |
1925 | void |
1926 | Perl_packlist(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist ) |
1927 | { |
1928 | tempsym_t sym = { 0 }; |
1929 | sym.patptr = pat; |
1930 | sym.patend = patend; |
1931 | sym.flags = FLAG_PACK; |
49704364 |
1932 | |
1933 | (void)pack_rec( cat, &sym, beglist, endlist ); |
1934 | } |
1935 | |
1936 | |
1937 | STATIC |
1938 | SV ** |
1939 | S_pack_rec(pTHX_ SV *cat, register tempsym_t* symptr, register SV **beglist, SV **endlist ) |
1940 | { |
a6ec74c1 |
1941 | register I32 items; |
1942 | STRLEN fromlen; |
49704364 |
1943 | register I32 len = 0; |
a6ec74c1 |
1944 | SV *fromstr; |
1945 | /*SUPPRESS 442*/ |
1946 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; |
1947 | static char *space10 = " "; |
49704364 |
1948 | bool found; |
a6ec74c1 |
1949 | |
1950 | /* These must not be in registers: */ |
1951 | char achar; |
ef108786 |
1952 | I16 ai16; |
1953 | U16 au16; |
1954 | I32 ai32; |
1955 | U32 au32; |
a6ec74c1 |
1956 | #ifdef HAS_QUAD |
1957 | Quad_t aquad; |
1958 | Uquad_t auquad; |
1959 | #endif |
ef108786 |
1960 | #if SHORTSIZE != SIZE16 |
1961 | short ashort; |
1962 | unsigned short aushort; |
1963 | #endif |
1964 | int aint; |
1965 | unsigned int auint; |
1966 | #if LONGSIZE != SIZE32 |
1967 | long along; |
1968 | unsigned long aulong; |
1969 | #endif |
a6ec74c1 |
1970 | char *aptr; |
1971 | float afloat; |
1972 | double adouble; |
ef108786 |
1973 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
1974 | long double aldouble; |
1975 | #endif |
1976 | IV aiv; |
1977 | UV auv; |
1978 | NV anv; |
1979 | |
49704364 |
1980 | int strrelbeg = SvCUR(cat); |
1981 | tempsym_t lookahead; |
a6ec74c1 |
1982 | |
18529408 |
1983 | items = endlist - beglist; |
49704364 |
1984 | found = next_symbol( symptr ); |
1985 | |
18529408 |
1986 | #ifndef PACKED_IS_OCTETS |
49704364 |
1987 | if (symptr->level == 0 && found && symptr->code == 'U' ){ |
18529408 |
1988 | SvUTF8_on(cat); |
49704364 |
1989 | } |
18529408 |
1990 | #endif |
49704364 |
1991 | |
1992 | while (found) { |
a6ec74c1 |
1993 | SV *lengthcode = Nullsv; |
18529408 |
1994 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
49704364 |
1995 | |
1996 | I32 datumtype = symptr->code; |
1997 | howlen_t howlen; |
1998 | |
1999 | switch( howlen = symptr->howlen ){ |
2000 | case e_no_len: |
2001 | case e_number: |
2002 | len = symptr->length; |
2003 | break; |
2004 | case e_star: |
1109a392 |
2005 | len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? 0 : items; |
49704364 |
2006 | break; |
2007 | } |
2008 | |
2009 | /* Look ahead for next symbol. Do we have code/code? */ |
2010 | lookahead = *symptr; |
2011 | found = next_symbol(&lookahead); |
2012 | if ( symptr->flags & FLAG_SLASH ) { |
2013 | if (found){ |
2014 | if ( 0 == strchr( "aAZ", lookahead.code ) || |
2015 | e_star != lookahead.howlen ) |
2016 | Perl_croak(aTHX_ "'/' must be followed by 'a*', 'A*' or 'Z*' in pack"); |
2017 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 |
18529408 |
2018 | ? *beglist : &PL_sv_no) |
49704364 |
2019 | + (lookahead.code == 'Z' ? 1 : 0))); |
2020 | } else { |
2021 | Perl_croak(aTHX_ "Code missing after '/' in pack"); |
2022 | } |
a6ec74c1 |
2023 | } |
49704364 |
2024 | |
1109a392 |
2025 | switch(TYPE_NO_ENDIANNESS(datumtype)) { |
a6ec74c1 |
2026 | default: |
1109a392 |
2027 | Perl_croak(aTHX_ "Invalid type '%c' in pack", (int)TYPE_NO_MODIFIERS(datumtype)); |
a6ec74c1 |
2028 | case '%': |
49704364 |
2029 | Perl_croak(aTHX_ "'%%' may not be used in pack"); |
a6ec74c1 |
2030 | case '@': |
49704364 |
2031 | len += strrelbeg - SvCUR(cat); |
a6ec74c1 |
2032 | if (len > 0) |
2033 | goto grow; |
2034 | len = -len; |
2035 | if (len > 0) |
2036 | goto shrink; |
2037 | break; |
18529408 |
2038 | case '(': |
2039 | { |
49704364 |
2040 | tempsym_t savsym = *symptr; |
66c611c5 |
2041 | U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags); |
2042 | symptr->flags |= group_modifiers; |
49704364 |
2043 | symptr->patend = savsym.grpend; |
2044 | symptr->level++; |
18529408 |
2045 | while (len--) { |
49704364 |
2046 | symptr->patptr = savsym.grpbeg; |
2047 | beglist = pack_rec(cat, symptr, beglist, endlist ); |
2048 | if (savsym.howlen == e_star && beglist == endlist) |
18529408 |
2049 | break; /* No way to continue */ |
2050 | } |
66c611c5 |
2051 | symptr->flags &= ~group_modifiers; |
49704364 |
2052 | lookahead.flags = symptr->flags; |
2053 | *symptr = savsym; |
18529408 |
2054 | break; |
2055 | } |
62f95557 |
2056 | case 'X' | TYPE_IS_SHRIEKING: |
2057 | if (!len) /* Avoid division by 0 */ |
2058 | len = 1; |
2059 | len = (SvCUR(cat)) % len; |
2060 | /* FALL THROUGH */ |
a6ec74c1 |
2061 | case 'X': |
2062 | shrink: |
eb160463 |
2063 | if ((I32)SvCUR(cat) < len) |
49704364 |
2064 | Perl_croak(aTHX_ "'X' outside of string in pack"); |
a6ec74c1 |
2065 | SvCUR(cat) -= len; |
2066 | *SvEND(cat) = '\0'; |
2067 | break; |
62f95557 |
2068 | case 'x' | TYPE_IS_SHRIEKING: |
2069 | if (!len) /* Avoid division by 0 */ |
2070 | len = 1; |
2071 | aint = (SvCUR(cat)) % len; |
2072 | if (aint) /* Other portable ways? */ |
2073 | len = len - aint; |
2074 | else |
2075 | len = 0; |
2076 | /* FALL THROUGH */ |
49704364 |
2077 | |
a6ec74c1 |
2078 | case 'x': |
2079 | grow: |
2080 | while (len >= 10) { |
2081 | sv_catpvn(cat, null10, 10); |
2082 | len -= 10; |
2083 | } |
2084 | sv_catpvn(cat, null10, len); |
2085 | break; |
2086 | case 'A': |
2087 | case 'Z': |
2088 | case 'a': |
2089 | fromstr = NEXTFROM; |
2090 | aptr = SvPV(fromstr, fromlen); |
49704364 |
2091 | if (howlen == e_star) { |
a6ec74c1 |
2092 | len = fromlen; |
2093 | if (datumtype == 'Z') |
2094 | ++len; |
2095 | } |
eb160463 |
2096 | if ((I32)fromlen >= len) { |
a6ec74c1 |
2097 | sv_catpvn(cat, aptr, len); |
2098 | if (datumtype == 'Z') |
2099 | *(SvEND(cat)-1) = '\0'; |
2100 | } |
2101 | else { |
2102 | sv_catpvn(cat, aptr, fromlen); |
2103 | len -= fromlen; |
2104 | if (datumtype == 'A') { |
2105 | while (len >= 10) { |
2106 | sv_catpvn(cat, space10, 10); |
2107 | len -= 10; |
2108 | } |
2109 | sv_catpvn(cat, space10, len); |
2110 | } |
2111 | else { |
2112 | while (len >= 10) { |
2113 | sv_catpvn(cat, null10, 10); |
2114 | len -= 10; |
2115 | } |
2116 | sv_catpvn(cat, null10, len); |
2117 | } |
2118 | } |
2119 | break; |
2120 | case 'B': |
2121 | case 'b': |
2122 | { |
2123 | register char *str; |
2124 | I32 saveitems; |
2125 | |
2126 | fromstr = NEXTFROM; |
2127 | saveitems = items; |
2128 | str = SvPV(fromstr, fromlen); |
49704364 |
2129 | if (howlen == e_star) |
a6ec74c1 |
2130 | len = fromlen; |
2131 | aint = SvCUR(cat); |
2132 | SvCUR(cat) += (len+7)/8; |
2133 | SvGROW(cat, SvCUR(cat) + 1); |
2134 | aptr = SvPVX(cat) + aint; |
eb160463 |
2135 | if (len > (I32)fromlen) |
a6ec74c1 |
2136 | len = fromlen; |
2137 | aint = len; |
2138 | items = 0; |
2139 | if (datumtype == 'B') { |
2140 | for (len = 0; len++ < aint;) { |
2141 | items |= *str++ & 1; |
2142 | if (len & 7) |
2143 | items <<= 1; |
2144 | else { |
2145 | *aptr++ = items & 0xff; |
2146 | items = 0; |
2147 | } |
2148 | } |
2149 | } |
2150 | else { |
2151 | for (len = 0; len++ < aint;) { |
2152 | if (*str++ & 1) |
2153 | items |= 128; |
2154 | if (len & 7) |
2155 | items >>= 1; |
2156 | else { |
2157 | *aptr++ = items & 0xff; |
2158 | items = 0; |
2159 | } |
2160 | } |
2161 | } |
2162 | if (aint & 7) { |
2163 | if (datumtype == 'B') |
2164 | items <<= 7 - (aint & 7); |
2165 | else |
2166 | items >>= 7 - (aint & 7); |
2167 | *aptr++ = items & 0xff; |
2168 | } |
2169 | str = SvPVX(cat) + SvCUR(cat); |
2170 | while (aptr <= str) |
2171 | *aptr++ = '\0'; |
2172 | |
2173 | items = saveitems; |
2174 | } |
2175 | break; |
2176 | case 'H': |
2177 | case 'h': |
2178 | { |
2179 | register char *str; |
2180 | I32 saveitems; |
2181 | |
2182 | fromstr = NEXTFROM; |
2183 | saveitems = items; |
2184 | str = SvPV(fromstr, fromlen); |
49704364 |
2185 | if (howlen == e_star) |
a6ec74c1 |
2186 | len = fromlen; |
2187 | aint = SvCUR(cat); |
2188 | SvCUR(cat) += (len+1)/2; |
2189 | SvGROW(cat, SvCUR(cat) + 1); |
2190 | aptr = SvPVX(cat) + aint; |
eb160463 |
2191 | if (len > (I32)fromlen) |
a6ec74c1 |
2192 | len = fromlen; |
2193 | aint = len; |
2194 | items = 0; |
2195 | if (datumtype == 'H') { |
2196 | for (len = 0; len++ < aint;) { |
2197 | if (isALPHA(*str)) |
2198 | items |= ((*str++ & 15) + 9) & 15; |
2199 | else |
2200 | items |= *str++ & 15; |
2201 | if (len & 1) |
2202 | items <<= 4; |
2203 | else { |
2204 | *aptr++ = items & 0xff; |
2205 | items = 0; |
2206 | } |
2207 | } |
2208 | } |
2209 | else { |
2210 | for (len = 0; len++ < aint;) { |
2211 | if (isALPHA(*str)) |
2212 | items |= (((*str++ & 15) + 9) & 15) << 4; |
2213 | else |
2214 | items |= (*str++ & 15) << 4; |
2215 | if (len & 1) |
2216 | items >>= 4; |
2217 | else { |
2218 | *aptr++ = items & 0xff; |
2219 | items = 0; |
2220 | } |
2221 | } |
2222 | } |
2223 | if (aint & 1) |
2224 | *aptr++ = items & 0xff; |
2225 | str = SvPVX(cat) + SvCUR(cat); |
2226 | while (aptr <= str) |
2227 | *aptr++ = '\0'; |
2228 | |
2229 | items = saveitems; |
2230 | } |
2231 | break; |
2232 | case 'C': |
2233 | case 'c': |
2234 | while (len-- > 0) { |
2235 | fromstr = NEXTFROM; |
1109a392 |
2236 | switch (TYPE_NO_MODIFIERS(datumtype)) { |
a6ec74c1 |
2237 | case 'C': |
2238 | aint = SvIV(fromstr); |
2239 | if ((aint < 0 || aint > 255) && |
2240 | ckWARN(WARN_PACK)) |
9014280d |
2241 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2242 | "Character in 'C' format wrapped in pack"); |
a6ec74c1 |
2243 | achar = aint & 255; |
2244 | sv_catpvn(cat, &achar, sizeof(char)); |
2245 | break; |
2246 | case 'c': |
2247 | aint = SvIV(fromstr); |
2248 | if ((aint < -128 || aint > 127) && |
2249 | ckWARN(WARN_PACK)) |
9014280d |
2250 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
49704364 |
2251 | "Character in 'c' format wrapped in pack" ); |
a6ec74c1 |
2252 | achar = aint & 255; |
2253 | sv_catpvn(cat, &achar, sizeof(char)); |
2254 | break; |
2255 | } |
2256 | } |
2257 | break; |
2258 | case 'U': |
2259 | while (len-- > 0) { |
2260 | fromstr = NEXTFROM; |
e87322b2 |
2261 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
89ebb4a3 |
2262 | SvGROW(cat, SvCUR(cat) + UTF8_MAXBYTES + 1); |
52ea3e69 |
2263 | SvCUR_set(cat, |
2264 | (char*)uvchr_to_utf8_flags((U8*)SvEND(cat), |
2265 | auint, |
2266 | ckWARN(WARN_UTF8) ? |
2267 | 0 : UNICODE_ALLOW_ANY) |
2268 | - SvPVX(cat)); |
a6ec74c1 |
2269 | } |
2270 | *SvEND(cat) = '\0'; |
2271 | break; |
2272 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
2273 | case 'f': |
a6ec74c1 |
2274 | while (len-- > 0) { |
2275 | fromstr = NEXTFROM; |
5cdb9e01 |
2276 | #ifdef __VOS__ |
2277 | /* VOS does not automatically map a floating-point overflow |
2278 | during conversion from double to float into infinity, so we |
2279 | do it by hand. This code should either be generalized for |
2280 | any OS that needs it, or removed if and when VOS implements |
2281 | posix-976 (suggestion to support mapping to infinity). |
2282 | Paul.Green@stratus.com 02-04-02. */ |
2283 | if (SvNV(fromstr) > FLT_MAX) |
2284 | afloat = _float_constants[0]; /* single prec. inf. */ |
2285 | else if (SvNV(fromstr) < -FLT_MAX) |
2286 | afloat = _float_constants[0]; /* single prec. inf. */ |
2287 | else afloat = (float)SvNV(fromstr); |
2288 | #else |
baf3cf9c |
2289 | # if defined(VMS) && !defined(__IEEE_FP) |
2290 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
2291 | * on Alpha; fake it if we don't have them. |
2292 | */ |
2293 | if (SvNV(fromstr) > FLT_MAX) |
2294 | afloat = FLT_MAX; |
2295 | else if (SvNV(fromstr) < -FLT_MAX) |
2296 | afloat = -FLT_MAX; |
2297 | else afloat = (float)SvNV(fromstr); |
2298 | # else |
a6ec74c1 |
2299 | afloat = (float)SvNV(fromstr); |
baf3cf9c |
2300 | # endif |
5cdb9e01 |
2301 | #endif |
1109a392 |
2302 | DO_BO_PACK_N(afloat, float); |
a6ec74c1 |
2303 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
2304 | } |
2305 | break; |
2306 | case 'd': |
a6ec74c1 |
2307 | while (len-- > 0) { |
2308 | fromstr = NEXTFROM; |
5cdb9e01 |
2309 | #ifdef __VOS__ |
2310 | /* VOS does not automatically map a floating-point overflow |
2311 | during conversion from long double to double into infinity, |
2312 | so we do it by hand. This code should either be generalized |
2313 | for any OS that needs it, or removed if and when VOS |
2314 | implements posix-976 (suggestion to support mapping to |
2315 | infinity). Paul.Green@stratus.com 02-04-02. */ |
2316 | if (SvNV(fromstr) > DBL_MAX) |
2317 | adouble = _double_constants[0]; /* double prec. inf. */ |
2318 | else if (SvNV(fromstr) < -DBL_MAX) |
2319 | adouble = _double_constants[0]; /* double prec. inf. */ |
2320 | else adouble = (double)SvNV(fromstr); |
2321 | #else |
baf3cf9c |
2322 | # if defined(VMS) && !defined(__IEEE_FP) |
2323 | /* IEEE fp overflow shenanigans are unavailable on VAX and optional |
2324 | * on Alpha; fake it if we don't have them. |
2325 | */ |
2326 | if (SvNV(fromstr) > DBL_MAX) |
2327 | adouble = DBL_MAX; |
2328 | else if (SvNV(fromstr) < -DBL_MAX) |
2329 | adouble = -DBL_MAX; |
2330 | else adouble = (double)SvNV(fromstr); |
2331 | # else |
a6ec74c1 |
2332 | adouble = (double)SvNV(fromstr); |
baf3cf9c |
2333 | # endif |
5cdb9e01 |
2334 | #endif |
1109a392 |
2335 | DO_BO_PACK_N(adouble, double); |
a6ec74c1 |
2336 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
2337 | } |
2338 | break; |
92d41999 |
2339 | case 'F': |
1109a392 |
2340 | Zero(&anv, 1, NV); /* can be long double with unused bits */ |
92d41999 |
2341 | while (len-- > 0) { |
2342 | fromstr = NEXTFROM; |
2343 | anv = SvNV(fromstr); |
1109a392 |
2344 | DO_BO_PACK_N(anv, NV); |
92d41999 |
2345 | sv_catpvn(cat, (char *)&anv, NVSIZE); |
2346 | } |
2347 | break; |
2348 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
2349 | case 'D': |
1109a392 |
2350 | /* long doubles can have unused bits, which may be nonzero */ |
2351 | Zero(&aldouble, 1, long double); |
92d41999 |
2352 | while (len-- > 0) { |
2353 | fromstr = NEXTFROM; |
2354 | aldouble = (long double)SvNV(fromstr); |
1109a392 |
2355 | DO_BO_PACK_N(aldouble, long double); |
92d41999 |
2356 | sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE); |
2357 | } |
2358 | break; |
2359 | #endif |
7212898e |
2360 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2361 | case 'n' | TYPE_IS_SHRIEKING: |
7212898e |
2362 | #endif |
a6ec74c1 |
2363 | case 'n': |
2364 | while (len-- > 0) { |
2365 | fromstr = NEXTFROM; |
ef108786 |
2366 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 |
2367 | #ifdef HAS_HTONS |
ef108786 |
2368 | ai16 = PerlSock_htons(ai16); |
a6ec74c1 |
2369 | #endif |
ef108786 |
2370 | CAT16(cat, &ai16); |
a6ec74c1 |
2371 | } |
2372 | break; |
7212898e |
2373 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2374 | case 'v' | TYPE_IS_SHRIEKING: |
7212898e |
2375 | #endif |
a6ec74c1 |
2376 | case 'v': |
2377 | while (len-- > 0) { |
2378 | fromstr = NEXTFROM; |
ef108786 |
2379 | ai16 = (I16)SvIV(fromstr); |
a6ec74c1 |
2380 | #ifdef HAS_HTOVS |
ef108786 |
2381 | ai16 = htovs(ai16); |
a6ec74c1 |
2382 | #endif |
ef108786 |
2383 | CAT16(cat, &ai16); |
a6ec74c1 |
2384 | } |
2385 | break; |
49704364 |
2386 | case 'S' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2387 | #if SHORTSIZE != SIZE16 |
49704364 |
2388 | { |
a6ec74c1 |
2389 | while (len-- > 0) { |
2390 | fromstr = NEXTFROM; |
2391 | aushort = SvUV(fromstr); |
1109a392 |
2392 | DO_BO_PACK(aushort, s); |
a6ec74c1 |
2393 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
2394 | } |
49704364 |
2395 | } |
2396 | break; |
2397 | #else |
2398 | /* Fall through! */ |
a6ec74c1 |
2399 | #endif |
49704364 |
2400 | case 'S': |
a6ec74c1 |
2401 | { |
a6ec74c1 |
2402 | while (len-- > 0) { |
2403 | fromstr = NEXTFROM; |
ef108786 |
2404 | au16 = (U16)SvUV(fromstr); |
2405 | DO_BO_PACK(au16, 16); |
2406 | CAT16(cat, &au16); |
a6ec74c1 |
2407 | } |
2408 | |
2409 | } |
2410 | break; |
49704364 |
2411 | case 's' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2412 | #if SHORTSIZE != SIZE16 |
49704364 |
2413 | { |
a6ec74c1 |
2414 | while (len-- > 0) { |
2415 | fromstr = NEXTFROM; |
2416 | ashort = SvIV(fromstr); |
1109a392 |
2417 | DO_BO_PACK(ashort, s); |
a6ec74c1 |
2418 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
2419 | } |
2420 | } |
49704364 |
2421 | break; |
2422 | #else |
2423 | /* Fall through! */ |
a6ec74c1 |
2424 | #endif |
49704364 |
2425 | case 's': |
2426 | while (len-- > 0) { |
2427 | fromstr = NEXTFROM; |
ef108786 |
2428 | ai16 = (I16)SvIV(fromstr); |
2429 | DO_BO_PACK(ai16, 16); |
2430 | CAT16(cat, &ai16); |
a6ec74c1 |
2431 | } |
2432 | break; |
2433 | case 'I': |
49704364 |
2434 | case 'I' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2435 | while (len-- > 0) { |
2436 | fromstr = NEXTFROM; |
2437 | auint = SvUV(fromstr); |
1109a392 |
2438 | DO_BO_PACK(auint, i); |
a6ec74c1 |
2439 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
2440 | } |
2441 | break; |
92d41999 |
2442 | case 'j': |
2443 | while (len-- > 0) { |
2444 | fromstr = NEXTFROM; |
2445 | aiv = SvIV(fromstr); |
1109a392 |
2446 | #if IVSIZE == INTSIZE |
2447 | DO_BO_PACK(aiv, i); |
2448 | #elif IVSIZE == LONGSIZE |
2449 | DO_BO_PACK(aiv, l); |
2450 | #elif defined(HAS_QUAD) && IVSIZE == U64SIZE |
2451 | DO_BO_PACK(aiv, 64); |
2452 | #endif |
92d41999 |
2453 | sv_catpvn(cat, (char*)&aiv, IVSIZE); |
2454 | } |
2455 | break; |
2456 | case 'J': |
2457 | while (len-- > 0) { |
2458 | fromstr = NEXTFROM; |
2459 | auv = SvUV(fromstr); |
1109a392 |
2460 | #if UVSIZE == INTSIZE |
2461 | DO_BO_PACK(auv, i); |
2462 | #elif UVSIZE == LONGSIZE |
2463 | DO_BO_PACK(auv, l); |
2464 | #elif defined(HAS_QUAD) && UVSIZE == U64SIZE |
2465 | DO_BO_PACK(auv, 64); |
2466 | #endif |
92d41999 |
2467 | sv_catpvn(cat, (char*)&auv, UVSIZE); |
2468 | } |
2469 | break; |
a6ec74c1 |
2470 | case 'w': |
2471 | while (len-- > 0) { |
2472 | fromstr = NEXTFROM; |
15e9f109 |
2473 | anv = SvNV(fromstr); |
a6ec74c1 |
2474 | |
15e9f109 |
2475 | if (anv < 0) |
49704364 |
2476 | Perl_croak(aTHX_ "Cannot compress negative numbers in pack"); |
a6ec74c1 |
2477 | |
196b62db |
2478 | /* 0xFFFFFFFFFFFFFFFF may cast to 18446744073709551616.0, |
2479 | which is == UV_MAX_P1. IOK is fine (instead of UV_only), as |
2480 | any negative IVs will have already been got by the croak() |
2481 | above. IOK is untrue for fractions, so we test them |
2482 | against UV_MAX_P1. */ |
15e9f109 |
2483 | if (SvIOK(fromstr) || anv < UV_MAX_P1) |
a6ec74c1 |
2484 | { |
7c1b502b |
2485 | char buf[(sizeof(UV)*8)/7+1]; |
a6ec74c1 |
2486 | char *in = buf + sizeof(buf); |
196b62db |
2487 | UV auv = SvUV(fromstr); |
a6ec74c1 |
2488 | |
2489 | do { |
eb160463 |
2490 | *--in = (char)((auv & 0x7f) | 0x80); |
a6ec74c1 |
2491 | auv >>= 7; |
2492 | } while (auv); |
2493 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2494 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2495 | } |
2496 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ |
2497 | char *from, *result, *in; |
2498 | SV *norm; |
2499 | STRLEN len; |
2500 | bool done; |
2501 | |
2502 | /* Copy string and check for compliance */ |
2503 | from = SvPV(fromstr, len); |
2504 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2505 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
a6ec74c1 |
2506 | |
2507 | New('w', result, len, char); |
2508 | in = result + len; |
2509 | done = FALSE; |
2510 | while (!done) |
2511 | *--in = div128(norm, &done) | 0x80; |
2512 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2513 | sv_catpvn(cat, in, (result + len) - in); |
2514 | Safefree(result); |
2515 | SvREFCNT_dec(norm); /* free norm */ |
2516 | } |
2517 | else if (SvNOKp(fromstr)) { |
0258719b |
2518 | /* 10**NV_MAX_10_EXP is the largest power of 10 |
2519 | so 10**(NV_MAX_10_EXP+1) is definately unrepresentable |
2520 | given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x: |
2521 | x = (NV_MAX_10_EXP+1) * log (10) / log (128) |
2522 | And with that many bytes only Inf can overflow. |
8f8d40ab |
2523 | Some C compilers are strict about integral constant |
2524 | expressions so we conservatively divide by a slightly |
2525 | smaller integer instead of multiplying by the exact |
2526 | floating-point value. |
0258719b |
2527 | */ |
2528 | #ifdef NV_MAX_10_EXP |
8f8d40ab |
2529 | /* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */ |
2530 | char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */ |
0258719b |
2531 | #else |
8f8d40ab |
2532 | /* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */ |
2533 | char buf[1 + (int)((308 + 1) / 2)]; /* valid C */ |
0258719b |
2534 | #endif |
a6ec74c1 |
2535 | char *in = buf + sizeof(buf); |
2536 | |
15e9f109 |
2537 | anv = Perl_floor(anv); |
a6ec74c1 |
2538 | do { |
15e9f109 |
2539 | NV next = Perl_floor(anv / 128); |
a6ec74c1 |
2540 | if (in <= buf) /* this cannot happen ;-) */ |
49704364 |
2541 | Perl_croak(aTHX_ "Cannot compress integer in pack"); |
0258719b |
2542 | *--in = (unsigned char)(anv - (next * 128)) | 0x80; |
15e9f109 |
2543 | anv = next; |
2544 | } while (anv > 0); |
a6ec74c1 |
2545 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
2546 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
2547 | } |
735b914b |
2548 | else { |
2549 | char *from, *result, *in; |
2550 | SV *norm; |
2551 | STRLEN len; |
2552 | bool done; |
2553 | |
2554 | /* Copy string and check for compliance */ |
2555 | from = SvPV(fromstr, len); |
2556 | if ((norm = is_an_int(from, len)) == NULL) |
49704364 |
2557 | Perl_croak(aTHX_ "Can only compress unsigned integers in pack"); |
735b914b |
2558 | |
2559 | New('w', result, len, char); |
2560 | in = result + len; |
2561 | done = FALSE; |
2562 | while (!done) |
2563 | *--in = div128(norm, &done) | 0x80; |
2564 | result[len - 1] &= 0x7F; /* clear continue bit */ |
2565 | sv_catpvn(cat, in, (result + len) - in); |
2566 | Safefree(result); |
2567 | SvREFCNT_dec(norm); /* free norm */ |
2568 | } |
a6ec74c1 |
2569 | } |
2570 | break; |
2571 | case 'i': |
49704364 |
2572 | case 'i' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2573 | while (len-- > 0) { |
2574 | fromstr = NEXTFROM; |
2575 | aint = SvIV(fromstr); |
1109a392 |
2576 | DO_BO_PACK(aint, i); |
a6ec74c1 |
2577 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
2578 | } |
2579 | break; |
7212898e |
2580 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2581 | case 'N' | TYPE_IS_SHRIEKING: |
7212898e |
2582 | #endif |
a6ec74c1 |
2583 | case 'N': |
2584 | while (len-- > 0) { |
2585 | fromstr = NEXTFROM; |
ef108786 |
2586 | au32 = SvUV(fromstr); |
a6ec74c1 |
2587 | #ifdef HAS_HTONL |
ef108786 |
2588 | au32 = PerlSock_htonl(au32); |
a6ec74c1 |
2589 | #endif |
ef108786 |
2590 | CAT32(cat, &au32); |
a6ec74c1 |
2591 | } |
2592 | break; |
7212898e |
2593 | #ifdef PERL_PACK_CAN_SHRIEKSIGN |
068bd2e7 |
2594 | case 'V' | TYPE_IS_SHRIEKING: |
7212898e |
2595 | #endif |
a6ec74c1 |
2596 | case 'V': |
2597 | while (len-- > 0) { |
2598 | fromstr = NEXTFROM; |
ef108786 |
2599 | au32 = SvUV(fromstr); |
a6ec74c1 |
2600 | #ifdef HAS_HTOVL |
ef108786 |
2601 | au32 = htovl(au32); |
a6ec74c1 |
2602 | #endif |
ef108786 |
2603 | CAT32(cat, &au32); |
a6ec74c1 |
2604 | } |
2605 | break; |
49704364 |
2606 | case 'L' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2607 | #if LONGSIZE != SIZE32 |
49704364 |
2608 | { |
a6ec74c1 |
2609 | while (len-- > 0) { |
2610 | fromstr = NEXTFROM; |
2611 | aulong = SvUV(fromstr); |
1109a392 |
2612 | DO_BO_PACK(aulong, l); |
a6ec74c1 |
2613 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
2614 | } |
2615 | } |
49704364 |
2616 | break; |
2617 | #else |
2618 | /* Fall though! */ |
a6ec74c1 |
2619 | #endif |
49704364 |
2620 | case 'L': |
a6ec74c1 |
2621 | { |
2622 | while (len-- > 0) { |
2623 | fromstr = NEXTFROM; |
ef108786 |
2624 | au32 = SvUV(fromstr); |
2625 | DO_BO_PACK(au32, 32); |
2626 | CAT32(cat, &au32); |
a6ec74c1 |
2627 | } |
2628 | } |
2629 | break; |
49704364 |
2630 | case 'l' | TYPE_IS_SHRIEKING: |
a6ec74c1 |
2631 | #if LONGSIZE != SIZE32 |
49704364 |
2632 | { |
a6ec74c1 |
2633 | while (len-- > 0) { |
2634 | fromstr = NEXTFROM; |
2635 | along = SvIV(fromstr); |
1109a392 |
2636 | DO_BO_PACK(along, l); |
a6ec74c1 |
2637 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
2638 | } |
2639 | } |
49704364 |
2640 | break; |
2641 | #else |
2642 | /* Fall though! */ |
a6ec74c1 |
2643 | #endif |
49704364 |
2644 | case 'l': |
2645 | while (len-- > 0) { |
2646 | fromstr = NEXTFROM; |
ef108786 |
2647 | ai32 = SvIV(fromstr); |
2648 | DO_BO_PACK(ai32, 32); |
2649 | CAT32(cat, &ai32); |
a6ec74c1 |
2650 | } |
2651 | break; |
2652 | #ifdef HAS_QUAD |
2653 | case 'Q': |
2654 | while (len-- > 0) { |
2655 | fromstr = NEXTFROM; |
2656 | auquad = (Uquad_t)SvUV(fromstr); |
1109a392 |
2657 | DO_BO_PACK(auquad, 64); |
a6ec74c1 |
2658 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
2659 | } |
2660 | break; |
2661 | case 'q': |
2662 | while (len-- > 0) { |
2663 | fromstr = NEXTFROM; |
2664 | aquad = (Quad_t)SvIV(fromstr); |
1109a392 |
2665 | DO_BO_PACK(aquad, 64); |
a6ec74c1 |
2666 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
2667 | } |
2668 | break; |
2669 | #endif |
2670 | case 'P': |
2671 | len = 1; /* assume SV is correct length */ |
49704364 |
2672 | /* Fall through! */ |
a6ec74c1 |
2673 | case 'p': |
2674 | while (len-- > 0) { |
2675 | fromstr = NEXTFROM; |
2676 | if (fromstr == &PL_sv_undef) |
2677 | aptr = NULL; |
2678 | else { |
2679 | STRLEN n_a; |
2680 | /* XXX better yet, could spirit away the string to |
2681 | * a safe spot and hang on to it until the result |
2682 | * of pack() (and all copies of the result) are |
2683 | * gone. |
2684 | */ |
2685 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) |
2686 | || (SvPADTMP(fromstr) |
2687 | && !SvREADONLY(fromstr)))) |
2688 | { |
9014280d |
2689 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
a6ec74c1 |
2690 | "Attempt to pack pointer to temporary value"); |
2691 | } |
2692 | if (SvPOK(fromstr) || SvNIOK(fromstr)) |
2693 | aptr = SvPV(fromstr,n_a); |
2694 | else |
2695 | aptr = SvPV_force(fromstr,n_a); |
2696 | } |
1109a392 |
2697 | DO_BO_PACK_P(aptr); |
a6ec74c1 |
2698 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
2699 | } |
2700 | break; |
2701 | case 'u': |
2702 | fromstr = NEXTFROM; |
2703 | aptr = SvPV(fromstr, fromlen); |
2704 | SvGROW(cat, fromlen * 4 / 3); |
19c9db5e |
2705 | if (len <= 2) |
a6ec74c1 |
2706 | len = 45; |
2707 | else |
2708 | len = len / 3 * 3; |
2709 | while (fromlen > 0) { |
2710 | I32 todo; |
2711 | |
eb160463 |
2712 | if ((I32)fromlen > len) |
a6ec74c1 |
2713 | todo = len; |
2714 | else |
2715 | todo = fromlen; |
2716 | doencodes(cat, aptr, todo); |
2717 | fromlen -= todo; |
2718 | aptr += todo; |
2719 | } |
2720 | break; |
2721 | } |
49704364 |
2722 | *symptr = lookahead; |
a6ec74c1 |
2723 | } |
49704364 |
2724 | return beglist; |
18529408 |
2725 | } |
2726 | #undef NEXTFROM |
2727 | |
2728 | |
2729 | PP(pp_pack) |
2730 | { |
2731 | dSP; dMARK; dORIGMARK; dTARGET; |
2732 | register SV *cat = TARG; |
2733 | STRLEN fromlen; |
2734 | register char *pat = SvPVx(*++MARK, fromlen); |
2735 | register char *patend = pat + fromlen; |
2736 | |
2737 | MARK++; |
2738 | sv_setpvn(cat, "", 0); |
2739 | |
7accc089 |
2740 | packlist(cat, pat, patend, MARK, SP + 1); |
18529408 |
2741 | |
a6ec74c1 |
2742 | SvSETMAGIC(cat); |
2743 | SP = ORIGMARK; |
2744 | PUSHs(cat); |
2745 | RETURN; |
2746 | } |
a6ec74c1 |
2747 | |
73cb7263 |
2748 | /* |
2749 | * Local variables: |
2750 | * c-indentation-style: bsd |
2751 | * c-basic-offset: 4 |
2752 | * indent-tabs-mode: t |
2753 | * End: |
2754 | * |
edf815fd |
2755 | * vim: shiftwidth=4: |
73cb7263 |
2756 | */ |