| 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; |
| 206947d2 |
145 | else if (c == '[') |
| 146 | pat = group_end(pat, patend, ']') + 1; |
| 18529408 |
147 | } |
| 518eff30 |
148 | Perl_croak(aTHX_ "No group ending character `%c' found", ender); |
| 18529408 |
149 | } |
| 150 | |
| 62f95557 |
151 | #define TYPE_IS_SHRIEKING 0x100 |
| 152 | |
| 206947d2 |
153 | /* Returns the sizeof() struct described by pat */ |
| 028d1f6d |
154 | STATIC I32 |
| 206947d2 |
155 | S_measure_struct(pTHX_ char *pat, register char *patend) |
| 156 | { |
| 157 | I32 datumtype; |
| 158 | register I32 len; |
| 159 | register I32 total = 0; |
| 160 | int commas = 0; |
| 161 | int star; /* 1 if count is *, -1 if no count given, -2 for / */ |
| 162 | #ifdef PERL_NATINT_PACK |
| 163 | int natint; /* native integer */ |
| 164 | int unatint; /* unsigned native integer */ |
| 165 | #endif |
| 166 | char buf[2]; |
| 167 | register int size; |
| 168 | |
| 169 | while ((pat = next_symbol(pat, patend)) < patend) { |
| 170 | datumtype = *pat++ & 0xFF; |
| 171 | #ifdef PERL_NATINT_PACK |
| 172 | natint = 0; |
| 173 | #endif |
| 174 | if (*pat == '!') { |
| 62f95557 |
175 | static const char *natstr = "sSiIlLxX"; |
| 206947d2 |
176 | |
| 177 | if (strchr(natstr, datumtype)) { |
| 62f95557 |
178 | if (datumtype == 'x' || datumtype == 'X') { |
| 179 | datumtype |= TYPE_IS_SHRIEKING; |
| 180 | } else { /* XXXX Should be redone similarly! */ |
| 206947d2 |
181 | #ifdef PERL_NATINT_PACK |
| 62f95557 |
182 | natint = 1; |
| 206947d2 |
183 | #endif |
| 62f95557 |
184 | } |
| 206947d2 |
185 | pat++; |
| 186 | } |
| 187 | else |
| 518eff30 |
188 | Perl_croak(aTHX_ "'!' allowed only after types %s", natstr); |
| 206947d2 |
189 | } |
| 190 | len = find_count(&pat, patend, &star); |
| 191 | if (star > 0) /* */ |
| 518eff30 |
192 | Perl_croak(aTHX_ "%s not allowed in length fields", "count *"); |
| 206947d2 |
193 | else if (star < 0) /* No explicit len */ |
| 194 | len = datumtype != '@'; |
| 195 | |
| 196 | switch(datumtype) { |
| 197 | default: |
| 518eff30 |
198 | Perl_croak(aTHX_ "Invalid type in unpack: '%c'", (int)datumtype); |
| 206947d2 |
199 | case '@': |
| 200 | case '/': |
| 201 | case 'U': /* XXXX Is it correct? */ |
| 202 | case 'w': |
| 203 | case 'u': |
| 204 | buf[0] = datumtype; |
| 205 | buf[1] = 0; |
| 518eff30 |
206 | Perl_croak(aTHX_ "%s not allowed in length fields", buf); |
| 206947d2 |
207 | case ',': /* grandfather in commas but with a warning */ |
| 208 | if (commas++ == 0 && ckWARN(WARN_UNPACK)) |
| 209 | Perl_warner(aTHX_ WARN_UNPACK, |
| 210 | "Invalid type in unpack: '%c'", (int)datumtype); |
| 211 | /* FALL THROUGH */ |
| 212 | case '%': |
| 213 | size = 0; |
| 214 | break; |
| 215 | case '(': |
| 216 | { |
| 217 | char *beg = pat, *end; |
| 218 | |
| 219 | if (star >= 0) |
| 518eff30 |
220 | Perl_croak(aTHX_ "()-group starts with a count"); |
| 206947d2 |
221 | end = group_end(beg, patend, ')'); |
| 222 | pat = end + 1; |
| 223 | len = find_count(&pat, patend, &star); |
| 224 | if (star < 0) /* No count */ |
| 225 | len = 1; |
| 226 | else if (star > 0) /* Star */ |
| 518eff30 |
227 | Perl_croak(aTHX_ "%s not allowed in length fields", "count *"); |
| 62f95557 |
228 | /* XXXX Theoretically, we need to measure many times at different |
| 229 | positions, since the subexpression may contain |
| 230 | alignment commands, but be not of aligned length. |
| 231 | Need to detect this and croak(). */ |
| 206947d2 |
232 | size = measure_struct(beg, end); |
| 233 | break; |
| 234 | } |
| 62f95557 |
235 | case 'X' | TYPE_IS_SHRIEKING: |
| 236 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. */ |
| 237 | if (!len) /* Avoid division by 0 */ |
| 238 | len = 1; |
| 239 | len = total % len; /* Assumed: the start is aligned. */ |
| 240 | /* FALL THROUGH */ |
| 206947d2 |
241 | case 'X': |
| 242 | size = -1; |
| 243 | if (total < len) |
| 518eff30 |
244 | Perl_croak(aTHX_ "X outside of string"); |
| 206947d2 |
245 | break; |
| 62f95557 |
246 | case 'x' | TYPE_IS_SHRIEKING: |
| 247 | if (!len) /* Avoid division by 0 */ |
| 248 | len = 1; |
| 249 | star = total % len; /* Assumed: the start is aligned. */ |
| 250 | if (star) /* Other portable ways? */ |
| 251 | len = len - star; |
| 252 | else |
| 253 | len = 0; |
| 254 | /* FALL THROUGH */ |
| 206947d2 |
255 | case 'x': |
| 256 | case 'A': |
| 257 | case 'Z': |
| 258 | case 'a': |
| 259 | case 'c': |
| 260 | case 'C': |
| 261 | size = 1; |
| 262 | break; |
| 263 | case 'B': |
| 264 | case 'b': |
| 265 | len = (len + 7)/8; |
| 266 | size = 1; |
| 267 | break; |
| 268 | case 'H': |
| 269 | case 'h': |
| 270 | len = (len + 1)/2; |
| 271 | size = 1; |
| 272 | break; |
| 273 | case 's': |
| 274 | #if SHORTSIZE == SIZE16 |
| 275 | size = SIZE16; |
| 276 | #else |
| 277 | size = (natint ? sizeof(short) : SIZE16); |
| 278 | #endif |
| 279 | break; |
| 280 | case 'v': |
| 281 | case 'n': |
| 282 | case 'S': |
| 283 | #if SHORTSIZE == SIZE16 |
| 284 | size = SIZE16; |
| 285 | #else |
| 286 | unatint = natint && datumtype == 'S'; |
| 287 | size = (unatint ? sizeof(unsigned short) : SIZE16); |
| 288 | #endif |
| 289 | break; |
| 290 | case 'i': |
| 291 | size = sizeof(int); |
| 292 | break; |
| 293 | case 'I': |
| 294 | size = sizeof(unsigned int); |
| 295 | break; |
| 92d41999 |
296 | case 'j': |
| 297 | size = IVSIZE; |
| 298 | break; |
| 299 | case 'J': |
| 300 | size = UVSIZE; |
| 301 | break; |
| 206947d2 |
302 | case 'l': |
| 303 | #if LONGSIZE == SIZE32 |
| 304 | size = SIZE32; |
| 305 | #else |
| 306 | size = (natint ? sizeof(long) : SIZE32); |
| 307 | #endif |
| 308 | break; |
| 309 | case 'V': |
| 310 | case 'N': |
| 311 | case 'L': |
| 312 | #if LONGSIZE == SIZE32 |
| 313 | size = SIZE32; |
| 314 | #else |
| 315 | unatint = natint && datumtype == 'L'; |
| 316 | size = (unatint ? sizeof(unsigned long) : SIZE32); |
| 317 | #endif |
| 318 | break; |
| 319 | case 'P': |
| 320 | len = 1; |
| 321 | /* FALL THROUGH */ |
| 322 | case 'p': |
| 323 | size = sizeof(char*); |
| 324 | break; |
| 325 | #ifdef HAS_QUAD |
| 326 | case 'q': |
| 327 | size = sizeof(Quad_t); |
| 328 | break; |
| 329 | case 'Q': |
| 330 | size = sizeof(Uquad_t); |
| 331 | break; |
| 332 | #endif |
| 333 | case 'f': |
| 206947d2 |
334 | size = sizeof(float); |
| 335 | break; |
| 336 | case 'd': |
| 206947d2 |
337 | size = sizeof(double); |
| 338 | break; |
| 92d41999 |
339 | case 'F': |
| 340 | size = NVSIZE; |
| 341 | break; |
| 342 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 343 | case 'D': |
| 344 | size = LONG_DOUBLESIZE; |
| 345 | break; |
| 346 | #endif |
| 206947d2 |
347 | } |
| 348 | total += len * size; |
| 349 | } |
| 350 | return total; |
| 351 | } |
| 352 | |
| 18529408 |
353 | /* Returns -1 on no count or on star */ |
| 354 | STATIC I32 |
| 355 | S_find_count(pTHX_ char **ppat, register char *patend, int *star) |
| 356 | { |
| 62f95557 |
357 | char *pat = *ppat; |
| 18529408 |
358 | I32 len; |
| 359 | |
| 360 | *star = 0; |
| 361 | if (pat >= patend) |
| 362 | len = 1; |
| 363 | else if (*pat == '*') { |
| 364 | pat++; |
| 365 | *star = 1; |
| 366 | len = -1; |
| 367 | } |
| 62f95557 |
368 | else if (isDIGIT(*pat)) { |
| 369 | len = *pat++ - '0'; |
| 18529408 |
370 | while (isDIGIT(*pat)) { |
| 371 | len = (len * 10) + (*pat++ - '0'); |
| 62f95557 |
372 | if (len < 0) /* 50% chance of catching... */ |
| 373 | Perl_croak(aTHX_ "Repeat count in pack/unpack overflows"); |
| 18529408 |
374 | } |
| 62f95557 |
375 | } |
| 376 | else if (*pat == '[') { |
| 377 | char *end = group_end(++pat, patend, ']'); |
| 378 | |
| 379 | len = 0; |
| 380 | *ppat = end + 1; |
| 381 | if (isDIGIT(*pat)) |
| 382 | return find_count(&pat, end, star); |
| 383 | return measure_struct(pat, end); |
| 18529408 |
384 | } |
| 385 | else |
| 386 | len = *star = -1; |
| 387 | *ppat = pat; |
| 388 | return len; |
| 389 | } |
| 390 | |
| 391 | STATIC char * |
| 392 | S_next_symbol(pTHX_ register char *pat, register char *patend) |
| 393 | { |
| 394 | while (pat < patend) { |
| 395 | if (isSPACE(*pat)) |
| 396 | pat++; |
| 397 | else if (*pat == '#') { |
| 398 | pat++; |
| 399 | while (pat < patend && *pat != '\n') |
| 400 | pat++; |
| 401 | if (pat < patend) |
| 402 | pat++; |
| 403 | } |
| 404 | else |
| 405 | return pat; |
| 406 | } |
| 407 | return pat; |
| 408 | } |
| 409 | |
| 18529408 |
410 | /* |
| 411 | =for apidoc unpack_str |
| 412 | |
| 413 | The engine implementing unpack() Perl function. |
| 414 | |
| 415 | =cut */ |
| 416 | |
| 417 | I32 |
| 418 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) |
| a6ec74c1 |
419 | { |
| 420 | dSP; |
| a6ec74c1 |
421 | I32 datumtype; |
| 422 | register I32 len; |
| 423 | register I32 bits = 0; |
| 424 | register char *str; |
| 18529408 |
425 | SV *sv; |
| 426 | I32 start_sp_offset = SP - PL_stack_base; |
| a6ec74c1 |
427 | |
| 428 | /* These must not be in registers: */ |
| 429 | short ashort; |
| 430 | int aint; |
| 431 | long along; |
| 432 | #ifdef HAS_QUAD |
| 433 | Quad_t aquad; |
| 434 | #endif |
| 435 | U16 aushort; |
| 436 | unsigned int auint; |
| 437 | U32 aulong; |
| 438 | #ifdef HAS_QUAD |
| 439 | Uquad_t auquad; |
| 440 | #endif |
| 441 | char *aptr; |
| 442 | float afloat; |
| 443 | double adouble; |
| 444 | I32 checksum = 0; |
| 92d41999 |
445 | UV cuv = 0; |
| a6ec74c1 |
446 | NV cdouble = 0.0; |
| 92d41999 |
447 | const int bits_in_uv = 8 * sizeof(cuv); |
| a6ec74c1 |
448 | int commas = 0; |
| 18529408 |
449 | int star; /* 1 if count is *, -1 if no count given, -2 for / */ |
| a6ec74c1 |
450 | #ifdef PERL_NATINT_PACK |
| 451 | int natint; /* native integer */ |
| 452 | int unatint; /* unsigned native integer */ |
| 453 | #endif |
| 92d41999 |
454 | IV aiv; |
| 455 | UV auv; |
| 456 | NV anv; |
| 457 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 458 | long double aldouble; |
| 459 | #endif |
| 18529408 |
460 | bool do_utf8 = flags & UNPACK_DO_UTF8; |
| a6ec74c1 |
461 | |
| 18529408 |
462 | while ((pat = next_symbol(pat, patend)) < patend) { |
| a6ec74c1 |
463 | datumtype = *pat++ & 0xFF; |
| 464 | #ifdef PERL_NATINT_PACK |
| 465 | natint = 0; |
| 466 | #endif |
| 206947d2 |
467 | /* do first one only unless in list context |
| 468 | / is implemented by unpacking the count, then poping it from the |
| 469 | stack, so must check that we're not in the middle of a / */ |
| 470 | if ( (flags & UNPACK_ONLY_ONE) |
| 471 | && (SP - PL_stack_base == start_sp_offset + 1) |
| 472 | && (datumtype != '/') ) |
| 473 | break; |
| a6ec74c1 |
474 | if (*pat == '!') { |
| 62f95557 |
475 | static const char natstr[] = "sSiIlLxX"; |
| a6ec74c1 |
476 | |
| 477 | if (strchr(natstr, datumtype)) { |
| 62f95557 |
478 | if (datumtype == 'x' || datumtype == 'X') { |
| 479 | datumtype |= TYPE_IS_SHRIEKING; |
| 480 | } else { /* XXXX Should be redone similarly! */ |
| a6ec74c1 |
481 | #ifdef PERL_NATINT_PACK |
| 62f95557 |
482 | natint = 1; |
| a6ec74c1 |
483 | #endif |
| 62f95557 |
484 | } |
| a6ec74c1 |
485 | pat++; |
| 486 | } |
| 487 | else |
| 518eff30 |
488 | Perl_croak(aTHX_ "'!' allowed only after types %s", natstr); |
| a6ec74c1 |
489 | } |
| 18529408 |
490 | len = find_count(&pat, patend, &star); |
| 491 | if (star > 0) |
| 492 | len = strend - strbeg; /* long enough */ |
| 493 | else if (star < 0) /* No explicit len */ |
| 206947d2 |
494 | len = datumtype != '@'; |
| 18529408 |
495 | |
| a6ec74c1 |
496 | redo_switch: |
| 497 | switch(datumtype) { |
| 498 | default: |
| 518eff30 |
499 | Perl_croak(aTHX_ "Invalid type in unpack: '%c'", (int)datumtype); |
| a6ec74c1 |
500 | case ',': /* grandfather in commas but with a warning */ |
| 501 | if (commas++ == 0 && ckWARN(WARN_UNPACK)) |
| 502 | Perl_warner(aTHX_ WARN_UNPACK, |
| 503 | "Invalid type in unpack: '%c'", (int)datumtype); |
| 504 | break; |
| 505 | case '%': |
| 18529408 |
506 | if (len == 1 && pat[-1] != '1' && pat[-1] != ']') |
| 507 | len = 16; /* len is not specified */ |
| a6ec74c1 |
508 | checksum = len; |
| 92d41999 |
509 | cuv = 0; |
| a6ec74c1 |
510 | cdouble = 0; |
| 18529408 |
511 | continue; |
| a6ec74c1 |
512 | break; |
| 18529408 |
513 | case '(': |
| 514 | { |
| 515 | char *beg = pat; |
| 516 | char *ss = s; /* Move from register */ |
| 517 | |
| 518 | if (star >= 0) |
| 518eff30 |
519 | Perl_croak(aTHX_ "()-group starts with a count"); |
| 18529408 |
520 | aptr = group_end(beg, patend, ')'); |
| 521 | pat = aptr + 1; |
| 522 | if (star != -2) { |
| 523 | len = find_count(&pat, patend, &star); |
| 524 | if (star < 0) /* No count */ |
| 525 | len = 1; |
| 526 | else if (star > 0) /* Star */ |
| 527 | len = strend - strbeg; /* long enough? */ |
| 528 | } |
| 529 | PUTBACK; |
| 530 | while (len--) { |
| 531 | unpack_str(beg, aptr, ss, strbeg, strend, &ss, |
| 532 | ocnt + SP - PL_stack_base - start_sp_offset, flags); |
| 533 | if (star > 0 && ss == strend) |
| 534 | break; /* No way to continue */ |
| 535 | } |
| 536 | SPAGAIN; |
| 537 | s = ss; |
| 538 | break; |
| 539 | } |
| a6ec74c1 |
540 | case '@': |
| 541 | if (len > strend - strbeg) |
| 518eff30 |
542 | Perl_croak(aTHX_ "@ outside of string"); |
| a6ec74c1 |
543 | s = strbeg + len; |
| 544 | break; |
| 62f95557 |
545 | case 'X' | TYPE_IS_SHRIEKING: |
| 546 | if (!len) /* Avoid division by 0 */ |
| 547 | len = 1; |
| 548 | len = (s - strbeg) % len; |
| 549 | /* FALL THROUGH */ |
| a6ec74c1 |
550 | case 'X': |
| 551 | if (len > s - strbeg) |
| 518eff30 |
552 | Perl_croak(aTHX_ "X outside of string"); |
| a6ec74c1 |
553 | s -= len; |
| 554 | break; |
| 62f95557 |
555 | case 'x' | TYPE_IS_SHRIEKING: |
| 556 | if (!len) /* Avoid division by 0 */ |
| 557 | len = 1; |
| 558 | aint = (s - strbeg) % len; |
| 559 | if (aint) /* Other portable ways? */ |
| 560 | len = len - aint; |
| 561 | else |
| 562 | len = 0; |
| 563 | /* FALL THROUGH */ |
| a6ec74c1 |
564 | case 'x': |
| 565 | if (len > strend - s) |
| 518eff30 |
566 | Perl_croak(aTHX_ "x outside of string"); |
| a6ec74c1 |
567 | s += len; |
| 568 | break; |
| 569 | case '/': |
| 18529408 |
570 | if (ocnt + SP - PL_stack_base - start_sp_offset <= 0) |
| 518eff30 |
571 | Perl_croak(aTHX_ "/ must follow a numeric type"); |
| a6ec74c1 |
572 | datumtype = *pat++; |
| 573 | if (*pat == '*') |
| 574 | pat++; /* ignore '*' for compatibility with pack */ |
| 575 | if (isDIGIT(*pat)) |
| 518eff30 |
576 | Perl_croak(aTHX_ "/ cannot take a count" ); |
| a6ec74c1 |
577 | len = POPi; |
| 18529408 |
578 | star = -2; |
| a6ec74c1 |
579 | goto redo_switch; |
| 580 | case 'A': |
| 581 | case 'Z': |
| 582 | case 'a': |
| 583 | if (len > strend - s) |
| 584 | len = strend - s; |
| 585 | if (checksum) |
| 586 | goto uchar_checksum; |
| 587 | sv = NEWSV(35, len); |
| 588 | sv_setpvn(sv, s, len); |
| a6ec74c1 |
589 | if (datumtype == 'A' || datumtype == 'Z') { |
| 590 | aptr = s; /* borrow register */ |
| 591 | if (datumtype == 'Z') { /* 'Z' strips stuff after first null */ |
| 592 | s = SvPVX(sv); |
| 593 | while (*s) |
| 594 | s++; |
| 18529408 |
595 | if (star > 0) /* exact for 'Z*' */ |
| d50dd4e4 |
596 | len = s - SvPVX(sv) + 1; |
| a6ec74c1 |
597 | } |
| 598 | else { /* 'A' strips both nulls and spaces */ |
| 599 | s = SvPVX(sv) + len - 1; |
| 600 | while (s >= SvPVX(sv) && (!*s || isSPACE(*s))) |
| 601 | s--; |
| 602 | *++s = '\0'; |
| 603 | } |
| 604 | SvCUR_set(sv, s - SvPVX(sv)); |
| 605 | s = aptr; /* unborrow register */ |
| 606 | } |
| d50dd4e4 |
607 | s += len; |
| a6ec74c1 |
608 | XPUSHs(sv_2mortal(sv)); |
| 609 | break; |
| 610 | case 'B': |
| 611 | case 'b': |
| 18529408 |
612 | if (star > 0 || len > (strend - s) * 8) |
| a6ec74c1 |
613 | len = (strend - s) * 8; |
| 614 | if (checksum) { |
| 615 | if (!PL_bitcount) { |
| 616 | Newz(601, PL_bitcount, 256, char); |
| 617 | for (bits = 1; bits < 256; bits++) { |
| 618 | if (bits & 1) PL_bitcount[bits]++; |
| 619 | if (bits & 2) PL_bitcount[bits]++; |
| 620 | if (bits & 4) PL_bitcount[bits]++; |
| 621 | if (bits & 8) PL_bitcount[bits]++; |
| 622 | if (bits & 16) PL_bitcount[bits]++; |
| 623 | if (bits & 32) PL_bitcount[bits]++; |
| 624 | if (bits & 64) PL_bitcount[bits]++; |
| 625 | if (bits & 128) PL_bitcount[bits]++; |
| 626 | } |
| 627 | } |
| 628 | while (len >= 8) { |
| 92d41999 |
629 | cuv += PL_bitcount[*(unsigned char*)s++]; |
| a6ec74c1 |
630 | len -= 8; |
| 631 | } |
| 632 | if (len) { |
| 633 | bits = *s; |
| 634 | if (datumtype == 'b') { |
| 635 | while (len-- > 0) { |
| 92d41999 |
636 | if (bits & 1) cuv++; |
| a6ec74c1 |
637 | bits >>= 1; |
| 638 | } |
| 639 | } |
| 640 | else { |
| 641 | while (len-- > 0) { |
| 92d41999 |
642 | if (bits & 128) cuv++; |
| a6ec74c1 |
643 | bits <<= 1; |
| 644 | } |
| 645 | } |
| 646 | } |
| 647 | break; |
| 648 | } |
| 649 | sv = NEWSV(35, len + 1); |
| 650 | SvCUR_set(sv, len); |
| 651 | SvPOK_on(sv); |
| 652 | str = SvPVX(sv); |
| 653 | if (datumtype == 'b') { |
| 654 | aint = len; |
| 655 | for (len = 0; len < aint; len++) { |
| 656 | if (len & 7) /*SUPPRESS 595*/ |
| 657 | bits >>= 1; |
| 658 | else |
| 659 | bits = *s++; |
| 660 | *str++ = '0' + (bits & 1); |
| 661 | } |
| 662 | } |
| 663 | else { |
| 664 | aint = len; |
| 665 | for (len = 0; len < aint; len++) { |
| 666 | if (len & 7) |
| 667 | bits <<= 1; |
| 668 | else |
| 669 | bits = *s++; |
| 670 | *str++ = '0' + ((bits & 128) != 0); |
| 671 | } |
| 672 | } |
| 673 | *str = '\0'; |
| 674 | XPUSHs(sv_2mortal(sv)); |
| 675 | break; |
| 676 | case 'H': |
| 677 | case 'h': |
| 18529408 |
678 | if (star > 0 || len > (strend - s) * 2) |
| a6ec74c1 |
679 | len = (strend - s) * 2; |
| 680 | sv = NEWSV(35, len + 1); |
| 681 | SvCUR_set(sv, len); |
| 682 | SvPOK_on(sv); |
| 683 | str = SvPVX(sv); |
| 684 | if (datumtype == 'h') { |
| 685 | aint = len; |
| 686 | for (len = 0; len < aint; len++) { |
| 687 | if (len & 1) |
| 688 | bits >>= 4; |
| 689 | else |
| 690 | bits = *s++; |
| 691 | *str++ = PL_hexdigit[bits & 15]; |
| 692 | } |
| 693 | } |
| 694 | else { |
| 695 | aint = len; |
| 696 | for (len = 0; len < aint; len++) { |
| 697 | if (len & 1) |
| 698 | bits <<= 4; |
| 699 | else |
| 700 | bits = *s++; |
| 701 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
| 702 | } |
| 703 | } |
| 704 | *str = '\0'; |
| 705 | XPUSHs(sv_2mortal(sv)); |
| 706 | break; |
| 707 | case 'c': |
| 708 | if (len > strend - s) |
| 709 | len = strend - s; |
| 710 | if (checksum) { |
| 711 | while (len-- > 0) { |
| 712 | aint = *s++; |
| 713 | if (aint >= 128) /* fake up signed chars */ |
| 714 | aint -= 256; |
| fa8ec7c1 |
715 | if (checksum > bits_in_uv) |
| 716 | cdouble += (NV)aint; |
| 717 | else |
| 92d41999 |
718 | cuv += aint; |
| a6ec74c1 |
719 | } |
| 720 | } |
| 721 | else { |
| 722 | EXTEND(SP, len); |
| 723 | EXTEND_MORTAL(len); |
| 724 | while (len-- > 0) { |
| 725 | aint = *s++; |
| 726 | if (aint >= 128) /* fake up signed chars */ |
| 727 | aint -= 256; |
| 728 | sv = NEWSV(36, 0); |
| 729 | sv_setiv(sv, (IV)aint); |
| 730 | PUSHs(sv_2mortal(sv)); |
| 731 | } |
| 732 | } |
| 733 | break; |
| 734 | case 'C': |
| 35bcd338 |
735 | unpack_C: /* unpack U will jump here if not UTF-8 */ |
| 736 | if (len == 0) { |
| 737 | do_utf8 = FALSE; |
| 738 | break; |
| 739 | } |
| a6ec74c1 |
740 | if (len > strend - s) |
| 741 | len = strend - s; |
| 742 | if (checksum) { |
| 743 | uchar_checksum: |
| 744 | while (len-- > 0) { |
| 745 | auint = *s++ & 255; |
| 92d41999 |
746 | cuv += auint; |
| a6ec74c1 |
747 | } |
| 748 | } |
| 749 | else { |
| 750 | EXTEND(SP, len); |
| 751 | EXTEND_MORTAL(len); |
| 752 | while (len-- > 0) { |
| 753 | auint = *s++ & 255; |
| 754 | sv = NEWSV(37, 0); |
| 755 | sv_setiv(sv, (IV)auint); |
| 756 | PUSHs(sv_2mortal(sv)); |
| 757 | } |
| 758 | } |
| 759 | break; |
| 760 | case 'U': |
| 35bcd338 |
761 | if (len == 0) { |
| 762 | do_utf8 = TRUE; |
| 763 | break; |
| 764 | } |
| 765 | if (!do_utf8) |
| 766 | goto unpack_C; |
| a6ec74c1 |
767 | if (len > strend - s) |
| 768 | len = strend - s; |
| 769 | if (checksum) { |
| 770 | while (len-- > 0 && s < strend) { |
| 771 | STRLEN alen; |
| e87322b2 |
772 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, 0)); |
| a6ec74c1 |
773 | along = alen; |
| 774 | s += along; |
| fa8ec7c1 |
775 | if (checksum > bits_in_uv) |
| a6ec74c1 |
776 | cdouble += (NV)auint; |
| 777 | else |
| 92d41999 |
778 | cuv += auint; |
| a6ec74c1 |
779 | } |
| 780 | } |
| 781 | else { |
| 782 | EXTEND(SP, len); |
| 783 | EXTEND_MORTAL(len); |
| 784 | while (len-- > 0 && s < strend) { |
| 785 | STRLEN alen; |
| e87322b2 |
786 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, 0)); |
| a6ec74c1 |
787 | along = alen; |
| 788 | s += along; |
| 789 | sv = NEWSV(37, 0); |
| 790 | sv_setuv(sv, (UV)auint); |
| 791 | PUSHs(sv_2mortal(sv)); |
| 792 | } |
| 793 | } |
| 794 | break; |
| 795 | case 's': |
| 796 | #if SHORTSIZE == SIZE16 |
| 797 | along = (strend - s) / SIZE16; |
| 798 | #else |
| 799 | along = (strend - s) / (natint ? sizeof(short) : SIZE16); |
| 800 | #endif |
| 801 | if (len > along) |
| 802 | len = along; |
| 803 | if (checksum) { |
| 804 | #if SHORTSIZE != SIZE16 |
| 805 | if (natint) { |
| 806 | short ashort; |
| 807 | while (len-- > 0) { |
| 808 | COPYNN(s, &ashort, sizeof(short)); |
| 809 | s += sizeof(short); |
| fa8ec7c1 |
810 | if (checksum > bits_in_uv) |
| 811 | cdouble += (NV)ashort; |
| 812 | else |
| 92d41999 |
813 | cuv += ashort; |
| a6ec74c1 |
814 | |
| 815 | } |
| 816 | } |
| 817 | else |
| 818 | #endif |
| 819 | { |
| 820 | while (len-- > 0) { |
| 821 | COPY16(s, &ashort); |
| 822 | #if SHORTSIZE > SIZE16 |
| 823 | if (ashort > 32767) |
| 824 | ashort -= 65536; |
| 825 | #endif |
| 826 | s += SIZE16; |
| fa8ec7c1 |
827 | if (checksum > bits_in_uv) |
| 828 | cdouble += (NV)ashort; |
| 829 | else |
| 92d41999 |
830 | cuv += ashort; |
| a6ec74c1 |
831 | } |
| 832 | } |
| 833 | } |
| 834 | else { |
| 835 | EXTEND(SP, len); |
| 836 | EXTEND_MORTAL(len); |
| 837 | #if SHORTSIZE != SIZE16 |
| 838 | if (natint) { |
| 839 | short ashort; |
| 840 | while (len-- > 0) { |
| 841 | COPYNN(s, &ashort, sizeof(short)); |
| 842 | s += sizeof(short); |
| 843 | sv = NEWSV(38, 0); |
| 844 | sv_setiv(sv, (IV)ashort); |
| 845 | PUSHs(sv_2mortal(sv)); |
| 846 | } |
| 847 | } |
| 848 | else |
| 849 | #endif |
| 850 | { |
| 851 | while (len-- > 0) { |
| 852 | COPY16(s, &ashort); |
| 853 | #if SHORTSIZE > SIZE16 |
| 854 | if (ashort > 32767) |
| 855 | ashort -= 65536; |
| 856 | #endif |
| 857 | s += SIZE16; |
| 858 | sv = NEWSV(38, 0); |
| 859 | sv_setiv(sv, (IV)ashort); |
| 860 | PUSHs(sv_2mortal(sv)); |
| 861 | } |
| 862 | } |
| 863 | } |
| 864 | break; |
| 865 | case 'v': |
| 866 | case 'n': |
| 867 | case 'S': |
| 868 | #if SHORTSIZE == SIZE16 |
| 869 | along = (strend - s) / SIZE16; |
| 870 | #else |
| 871 | unatint = natint && datumtype == 'S'; |
| 872 | along = (strend - s) / (unatint ? sizeof(unsigned short) : SIZE16); |
| 873 | #endif |
| 874 | if (len > along) |
| 875 | len = along; |
| 876 | if (checksum) { |
| 877 | #if SHORTSIZE != SIZE16 |
| 878 | if (unatint) { |
| 879 | unsigned short aushort; |
| 880 | while (len-- > 0) { |
| 881 | COPYNN(s, &aushort, sizeof(unsigned short)); |
| 882 | s += sizeof(unsigned short); |
| fa8ec7c1 |
883 | if (checksum > bits_in_uv) |
| 884 | cdouble += (NV)aushort; |
| 885 | else |
| 92d41999 |
886 | cuv += aushort; |
| a6ec74c1 |
887 | } |
| 888 | } |
| 889 | else |
| 890 | #endif |
| 891 | { |
| 892 | while (len-- > 0) { |
| 893 | COPY16(s, &aushort); |
| 894 | s += SIZE16; |
| 895 | #ifdef HAS_NTOHS |
| 896 | if (datumtype == 'n') |
| 897 | aushort = PerlSock_ntohs(aushort); |
| 898 | #endif |
| 899 | #ifdef HAS_VTOHS |
| 900 | if (datumtype == 'v') |
| 901 | aushort = vtohs(aushort); |
| 902 | #endif |
| fa8ec7c1 |
903 | if (checksum > bits_in_uv) |
| 904 | cdouble += (NV)aushort; |
| 905 | else |
| 92d41999 |
906 | cuv += aushort; |
| a6ec74c1 |
907 | } |
| 908 | } |
| 909 | } |
| 910 | else { |
| 911 | EXTEND(SP, len); |
| 912 | EXTEND_MORTAL(len); |
| 913 | #if SHORTSIZE != SIZE16 |
| 914 | if (unatint) { |
| 915 | unsigned short aushort; |
| 916 | while (len-- > 0) { |
| 917 | COPYNN(s, &aushort, sizeof(unsigned short)); |
| 918 | s += sizeof(unsigned short); |
| 919 | sv = NEWSV(39, 0); |
| 920 | sv_setiv(sv, (UV)aushort); |
| 921 | PUSHs(sv_2mortal(sv)); |
| 922 | } |
| 923 | } |
| 924 | else |
| 925 | #endif |
| 926 | { |
| 927 | while (len-- > 0) { |
| 928 | COPY16(s, &aushort); |
| 929 | s += SIZE16; |
| 930 | sv = NEWSV(39, 0); |
| 931 | #ifdef HAS_NTOHS |
| 932 | if (datumtype == 'n') |
| 933 | aushort = PerlSock_ntohs(aushort); |
| 934 | #endif |
| 935 | #ifdef HAS_VTOHS |
| 936 | if (datumtype == 'v') |
| 937 | aushort = vtohs(aushort); |
| 938 | #endif |
| 939 | sv_setiv(sv, (UV)aushort); |
| 940 | PUSHs(sv_2mortal(sv)); |
| 941 | } |
| 942 | } |
| 943 | } |
| 944 | break; |
| 945 | case 'i': |
| 946 | along = (strend - s) / sizeof(int); |
| 947 | if (len > along) |
| 948 | len = along; |
| 949 | if (checksum) { |
| 950 | while (len-- > 0) { |
| 951 | Copy(s, &aint, 1, int); |
| 952 | s += sizeof(int); |
| fa8ec7c1 |
953 | if (checksum > bits_in_uv) |
| a6ec74c1 |
954 | cdouble += (NV)aint; |
| 955 | else |
| 92d41999 |
956 | cuv += aint; |
| a6ec74c1 |
957 | } |
| 958 | } |
| 959 | else { |
| 960 | EXTEND(SP, len); |
| 961 | EXTEND_MORTAL(len); |
| 962 | while (len-- > 0) { |
| 963 | Copy(s, &aint, 1, int); |
| 964 | s += sizeof(int); |
| 965 | sv = NEWSV(40, 0); |
| 966 | #ifdef __osf__ |
| 967 | /* Without the dummy below unpack("i", pack("i",-1)) |
| 968 | * return 0xFFffFFff instead of -1 for Digital Unix V4.0 |
| 969 | * cc with optimization turned on. |
| 970 | * |
| 971 | * The bug was detected in |
| 972 | * DEC C V5.8-009 on Digital UNIX V4.0 (Rev. 1091) (V4.0E) |
| 973 | * with optimization (-O4) turned on. |
| 974 | * DEC C V5.2-040 on Digital UNIX V4.0 (Rev. 564) (V4.0B) |
| 975 | * does not have this problem even with -O4. |
| 976 | * |
| 977 | * This bug was reported as DECC_BUGS 1431 |
| 978 | * and tracked internally as GEM_BUGS 7775. |
| 979 | * |
| 980 | * The bug is fixed in |
| 981 | * Tru64 UNIX V5.0: Compaq C V6.1-006 or later |
| 982 | * UNIX V4.0F support: DEC C V5.9-006 or later |
| 983 | * UNIX V4.0E support: DEC C V5.8-011 or later |
| 984 | * and also in DTK. |
| 985 | * |
| 986 | * See also few lines later for the same bug. |
| 987 | */ |
| 988 | (aint) ? |
| 989 | sv_setiv(sv, (IV)aint) : |
| 990 | #endif |
| 991 | sv_setiv(sv, (IV)aint); |
| 992 | PUSHs(sv_2mortal(sv)); |
| 993 | } |
| 994 | } |
| 995 | break; |
| 996 | case 'I': |
| 997 | along = (strend - s) / sizeof(unsigned int); |
| 998 | if (len > along) |
| 999 | len = along; |
| 1000 | if (checksum) { |
| 1001 | while (len-- > 0) { |
| 1002 | Copy(s, &auint, 1, unsigned int); |
| 1003 | s += sizeof(unsigned int); |
| fa8ec7c1 |
1004 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1005 | cdouble += (NV)auint; |
| 1006 | else |
| 92d41999 |
1007 | cuv += auint; |
| a6ec74c1 |
1008 | } |
| 1009 | } |
| 1010 | else { |
| 1011 | EXTEND(SP, len); |
| 1012 | EXTEND_MORTAL(len); |
| 1013 | while (len-- > 0) { |
| 1014 | Copy(s, &auint, 1, unsigned int); |
| 1015 | s += sizeof(unsigned int); |
| 1016 | sv = NEWSV(41, 0); |
| 1017 | #ifdef __osf__ |
| 1018 | /* Without the dummy below unpack("I", pack("I",0xFFFFFFFF)) |
| 1019 | * returns 1.84467440737096e+19 instead of 0xFFFFFFFF. |
| 1020 | * See details few lines earlier. */ |
| 1021 | (auint) ? |
| 1022 | sv_setuv(sv, (UV)auint) : |
| 1023 | #endif |
| 1024 | sv_setuv(sv, (UV)auint); |
| 1025 | PUSHs(sv_2mortal(sv)); |
| 1026 | } |
| 1027 | } |
| 1028 | break; |
| 92d41999 |
1029 | case 'j': |
| 1030 | along = (strend - s) / IVSIZE; |
| 1031 | if (len > along) |
| 1032 | len = along; |
| 1033 | if (checksum) { |
| 1034 | while (len-- > 0) { |
| 1035 | Copy(s, &aiv, 1, IV); |
| 1036 | s += IVSIZE; |
| 1037 | if (checksum > bits_in_uv) |
| 1038 | cdouble += (NV)aiv; |
| 1039 | else |
| 1040 | cuv += aiv; |
| 1041 | } |
| 1042 | } |
| 1043 | else { |
| 1044 | EXTEND(SP, len); |
| 1045 | EXTEND_MORTAL(len); |
| 1046 | while (len-- > 0) { |
| 1047 | Copy(s, &aiv, 1, IV); |
| 1048 | s += IVSIZE; |
| 1049 | sv = NEWSV(40, 0); |
| 1050 | sv_setiv(sv, aiv); |
| 1051 | PUSHs(sv_2mortal(sv)); |
| 1052 | } |
| 1053 | } |
| 1054 | break; |
| 1055 | case 'J': |
| 1056 | along = (strend - s) / UVSIZE; |
| 1057 | if (len > along) |
| 1058 | len = along; |
| 1059 | if (checksum) { |
| 1060 | while (len-- > 0) { |
| 1061 | Copy(s, &auv, 1, UV); |
| 1062 | s += UVSIZE; |
| 1063 | if (checksum > bits_in_uv) |
| 1064 | cdouble += (NV)auv; |
| 1065 | else |
| 1066 | cuv += auv; |
| 1067 | } |
| 1068 | } |
| 1069 | else { |
| 1070 | EXTEND(SP, len); |
| 1071 | EXTEND_MORTAL(len); |
| 1072 | while (len-- > 0) { |
| 1073 | Copy(s, &auv, 1, UV); |
| 1074 | s += UVSIZE; |
| 1075 | sv = NEWSV(41, 0); |
| 1076 | sv_setuv(sv, auv); |
| 1077 | PUSHs(sv_2mortal(sv)); |
| 1078 | } |
| 1079 | } |
| 1080 | break; |
| a6ec74c1 |
1081 | case 'l': |
| 1082 | #if LONGSIZE == SIZE32 |
| 1083 | along = (strend - s) / SIZE32; |
| 1084 | #else |
| 1085 | along = (strend - s) / (natint ? sizeof(long) : SIZE32); |
| 1086 | #endif |
| 1087 | if (len > along) |
| 1088 | len = along; |
| 1089 | if (checksum) { |
| 1090 | #if LONGSIZE != SIZE32 |
| 1091 | if (natint) { |
| 1092 | while (len-- > 0) { |
| 1093 | COPYNN(s, &along, sizeof(long)); |
| 1094 | s += sizeof(long); |
| fa8ec7c1 |
1095 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1096 | cdouble += (NV)along; |
| 1097 | else |
| 92d41999 |
1098 | cuv += along; |
| a6ec74c1 |
1099 | } |
| 1100 | } |
| 1101 | else |
| 1102 | #endif |
| 1103 | { |
| 1104 | while (len-- > 0) { |
| 1105 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
| 1106 | I32 along; |
| 1107 | #endif |
| 1108 | COPY32(s, &along); |
| 1109 | #if LONGSIZE > SIZE32 |
| 1110 | if (along > 2147483647) |
| 1111 | along -= 4294967296; |
| 1112 | #endif |
| 1113 | s += SIZE32; |
| fa8ec7c1 |
1114 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1115 | cdouble += (NV)along; |
| 1116 | else |
| 92d41999 |
1117 | cuv += along; |
| a6ec74c1 |
1118 | } |
| 1119 | } |
| 1120 | } |
| 1121 | else { |
| 1122 | EXTEND(SP, len); |
| 1123 | EXTEND_MORTAL(len); |
| 1124 | #if LONGSIZE != SIZE32 |
| 1125 | if (natint) { |
| 1126 | while (len-- > 0) { |
| 1127 | COPYNN(s, &along, sizeof(long)); |
| 1128 | s += sizeof(long); |
| 1129 | sv = NEWSV(42, 0); |
| 1130 | sv_setiv(sv, (IV)along); |
| 1131 | PUSHs(sv_2mortal(sv)); |
| 1132 | } |
| 1133 | } |
| 1134 | else |
| 1135 | #endif |
| 1136 | { |
| 1137 | while (len-- > 0) { |
| 1138 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
| 1139 | I32 along; |
| 1140 | #endif |
| 1141 | COPY32(s, &along); |
| 1142 | #if LONGSIZE > SIZE32 |
| 1143 | if (along > 2147483647) |
| 1144 | along -= 4294967296; |
| 1145 | #endif |
| 1146 | s += SIZE32; |
| 1147 | sv = NEWSV(42, 0); |
| 1148 | sv_setiv(sv, (IV)along); |
| 1149 | PUSHs(sv_2mortal(sv)); |
| 1150 | } |
| 1151 | } |
| 1152 | } |
| 1153 | break; |
| 1154 | case 'V': |
| 1155 | case 'N': |
| 1156 | case 'L': |
| 1157 | #if LONGSIZE == SIZE32 |
| 1158 | along = (strend - s) / SIZE32; |
| 1159 | #else |
| 1160 | unatint = natint && datumtype == 'L'; |
| 1161 | along = (strend - s) / (unatint ? sizeof(unsigned long) : SIZE32); |
| 1162 | #endif |
| 1163 | if (len > along) |
| 1164 | len = along; |
| 1165 | if (checksum) { |
| 1166 | #if LONGSIZE != SIZE32 |
| 1167 | if (unatint) { |
| 1168 | unsigned long aulong; |
| 1169 | while (len-- > 0) { |
| 1170 | COPYNN(s, &aulong, sizeof(unsigned long)); |
| 1171 | s += sizeof(unsigned long); |
| fa8ec7c1 |
1172 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1173 | cdouble += (NV)aulong; |
| 1174 | else |
| 92d41999 |
1175 | cuv += aulong; |
| a6ec74c1 |
1176 | } |
| 1177 | } |
| 1178 | else |
| 1179 | #endif |
| 1180 | { |
| 1181 | while (len-- > 0) { |
| 1182 | COPY32(s, &aulong); |
| 1183 | s += SIZE32; |
| 1184 | #ifdef HAS_NTOHL |
| 1185 | if (datumtype == 'N') |
| 1186 | aulong = PerlSock_ntohl(aulong); |
| 1187 | #endif |
| 1188 | #ifdef HAS_VTOHL |
| 1189 | if (datumtype == 'V') |
| 1190 | aulong = vtohl(aulong); |
| 1191 | #endif |
| fa8ec7c1 |
1192 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1193 | cdouble += (NV)aulong; |
| 1194 | else |
| 92d41999 |
1195 | cuv += aulong; |
| a6ec74c1 |
1196 | } |
| 1197 | } |
| 1198 | } |
| 1199 | else { |
| 1200 | EXTEND(SP, len); |
| 1201 | EXTEND_MORTAL(len); |
| 1202 | #if LONGSIZE != SIZE32 |
| 1203 | if (unatint) { |
| 1204 | unsigned long aulong; |
| 1205 | while (len-- > 0) { |
| 1206 | COPYNN(s, &aulong, sizeof(unsigned long)); |
| 1207 | s += sizeof(unsigned long); |
| 1208 | sv = NEWSV(43, 0); |
| 1209 | sv_setuv(sv, (UV)aulong); |
| 1210 | PUSHs(sv_2mortal(sv)); |
| 1211 | } |
| 1212 | } |
| 1213 | else |
| 1214 | #endif |
| 1215 | { |
| 1216 | while (len-- > 0) { |
| 1217 | COPY32(s, &aulong); |
| 1218 | s += SIZE32; |
| 1219 | #ifdef HAS_NTOHL |
| 1220 | if (datumtype == 'N') |
| 1221 | aulong = PerlSock_ntohl(aulong); |
| 1222 | #endif |
| 1223 | #ifdef HAS_VTOHL |
| 1224 | if (datumtype == 'V') |
| 1225 | aulong = vtohl(aulong); |
| 1226 | #endif |
| 1227 | sv = NEWSV(43, 0); |
| 1228 | sv_setuv(sv, (UV)aulong); |
| 1229 | PUSHs(sv_2mortal(sv)); |
| 1230 | } |
| 1231 | } |
| 1232 | } |
| 1233 | break; |
| 1234 | case 'p': |
| 1235 | along = (strend - s) / sizeof(char*); |
| 1236 | if (len > along) |
| 1237 | len = along; |
| 1238 | EXTEND(SP, len); |
| 1239 | EXTEND_MORTAL(len); |
| 1240 | while (len-- > 0) { |
| 1241 | if (sizeof(char*) > strend - s) |
| 1242 | break; |
| 1243 | else { |
| 1244 | Copy(s, &aptr, 1, char*); |
| 1245 | s += sizeof(char*); |
| 1246 | } |
| 1247 | sv = NEWSV(44, 0); |
| 1248 | if (aptr) |
| 1249 | sv_setpv(sv, aptr); |
| 1250 | PUSHs(sv_2mortal(sv)); |
| 1251 | } |
| 1252 | break; |
| 1253 | case 'w': |
| 1254 | EXTEND(SP, len); |
| 1255 | EXTEND_MORTAL(len); |
| 1256 | { |
| 1257 | UV auv = 0; |
| 1258 | U32 bytes = 0; |
| 1259 | |
| 1260 | while ((len > 0) && (s < strend)) { |
| 1261 | auv = (auv << 7) | (*s & 0x7f); |
| 1262 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
| 1263 | if ((U8)(*s++) < 0x80) { |
| 1264 | bytes = 0; |
| 1265 | sv = NEWSV(40, 0); |
| 1266 | sv_setuv(sv, auv); |
| 1267 | PUSHs(sv_2mortal(sv)); |
| 1268 | len--; |
| 1269 | auv = 0; |
| 1270 | } |
| 1271 | else if (++bytes >= sizeof(UV)) { /* promote to string */ |
| 1272 | char *t; |
| 1273 | STRLEN n_a; |
| 1274 | |
| 1275 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); |
| 1276 | while (s < strend) { |
| 1277 | sv = mul128(sv, *s & 0x7f); |
| 1278 | if (!(*s++ & 0x80)) { |
| 1279 | bytes = 0; |
| 1280 | break; |
| 1281 | } |
| 1282 | } |
| 1283 | t = SvPV(sv, n_a); |
| 1284 | while (*t == '0') |
| 1285 | t++; |
| 1286 | sv_chop(sv, t); |
| 1287 | PUSHs(sv_2mortal(sv)); |
| 1288 | len--; |
| 1289 | auv = 0; |
| 1290 | } |
| 1291 | } |
| 1292 | if ((s >= strend) && bytes) |
| 518eff30 |
1293 | Perl_croak(aTHX_ "Unterminated compressed integer"); |
| a6ec74c1 |
1294 | } |
| 1295 | break; |
| 1296 | case 'P': |
| 18529408 |
1297 | if (star > 0) |
| 518eff30 |
1298 | Perl_croak(aTHX_ "P must have an explicit size"); |
| a6ec74c1 |
1299 | EXTEND(SP, 1); |
| 1300 | if (sizeof(char*) > strend - s) |
| 1301 | break; |
| 1302 | else { |
| 1303 | Copy(s, &aptr, 1, char*); |
| 1304 | s += sizeof(char*); |
| 1305 | } |
| 1306 | sv = NEWSV(44, 0); |
| 1307 | if (aptr) |
| 1308 | sv_setpvn(sv, aptr, len); |
| 1309 | PUSHs(sv_2mortal(sv)); |
| 1310 | break; |
| 1311 | #ifdef HAS_QUAD |
| 1312 | case 'q': |
| 1313 | along = (strend - s) / sizeof(Quad_t); |
| 1314 | if (len > along) |
| 1315 | len = along; |
| fa8ec7c1 |
1316 | if (checksum) { |
| 1317 | while (len-- > 0) { |
| a6ec74c1 |
1318 | Copy(s, &aquad, 1, Quad_t); |
| 1319 | s += sizeof(Quad_t); |
| fa8ec7c1 |
1320 | if (checksum > bits_in_uv) |
| 1321 | cdouble += (NV)aquad; |
| 1322 | else |
| 92d41999 |
1323 | cuv += aquad; |
| a6ec74c1 |
1324 | } |
| a6ec74c1 |
1325 | } |
| fa8ec7c1 |
1326 | else { |
| 1327 | EXTEND(SP, len); |
| 1328 | EXTEND_MORTAL(len); |
| 1329 | while (len-- > 0) { |
| 1330 | if (s + sizeof(Quad_t) > strend) |
| 1331 | aquad = 0; |
| 1332 | else { |
| 92d41999 |
1333 | Copy(s, &aquad, 1, Quad_t); |
| 1334 | s += sizeof(Quad_t); |
| fa8ec7c1 |
1335 | } |
| 1336 | sv = NEWSV(42, 0); |
| 1337 | if (aquad >= IV_MIN && aquad <= IV_MAX) |
| 92d41999 |
1338 | sv_setiv(sv, (IV)aquad); |
| fa8ec7c1 |
1339 | else |
| 1340 | sv_setnv(sv, (NV)aquad); |
| 1341 | PUSHs(sv_2mortal(sv)); |
| 1342 | } |
| 1343 | } |
| a6ec74c1 |
1344 | break; |
| 1345 | case 'Q': |
| 206947d2 |
1346 | along = (strend - s) / sizeof(Uquad_t); |
| a6ec74c1 |
1347 | if (len > along) |
| 1348 | len = along; |
| fa8ec7c1 |
1349 | if (checksum) { |
| 1350 | while (len-- > 0) { |
| a6ec74c1 |
1351 | Copy(s, &auquad, 1, Uquad_t); |
| 1352 | s += sizeof(Uquad_t); |
| fa8ec7c1 |
1353 | if (checksum > bits_in_uv) |
| 1354 | cdouble += (NV)auquad; |
| 1355 | else |
| 92d41999 |
1356 | cuv += auquad; |
| a6ec74c1 |
1357 | } |
| a6ec74c1 |
1358 | } |
| fa8ec7c1 |
1359 | else { |
| 1360 | EXTEND(SP, len); |
| 1361 | EXTEND_MORTAL(len); |
| 1362 | while (len-- > 0) { |
| 1363 | if (s + sizeof(Uquad_t) > strend) |
| 1364 | auquad = 0; |
| 1365 | else { |
| 1366 | Copy(s, &auquad, 1, Uquad_t); |
| 1367 | s += sizeof(Uquad_t); |
| 1368 | } |
| 1369 | sv = NEWSV(43, 0); |
| 1370 | if (auquad <= UV_MAX) |
| 1371 | sv_setuv(sv, (UV)auquad); |
| 1372 | else |
| 1373 | sv_setnv(sv, (NV)auquad); |
| 1374 | PUSHs(sv_2mortal(sv)); |
| 1375 | } |
| 1376 | } |
| a6ec74c1 |
1377 | break; |
| 1378 | #endif |
| 1379 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
| 1380 | case 'f': |
| a6ec74c1 |
1381 | along = (strend - s) / sizeof(float); |
| 1382 | if (len > along) |
| 1383 | len = along; |
| 1384 | if (checksum) { |
| 1385 | while (len-- > 0) { |
| 1386 | Copy(s, &afloat, 1, float); |
| 1387 | s += sizeof(float); |
| 1388 | cdouble += afloat; |
| 1389 | } |
| 1390 | } |
| 1391 | else { |
| 1392 | EXTEND(SP, len); |
| 1393 | EXTEND_MORTAL(len); |
| 1394 | while (len-- > 0) { |
| 1395 | Copy(s, &afloat, 1, float); |
| 1396 | s += sizeof(float); |
| 1397 | sv = NEWSV(47, 0); |
| 1398 | sv_setnv(sv, (NV)afloat); |
| 1399 | PUSHs(sv_2mortal(sv)); |
| 1400 | } |
| 1401 | } |
| 1402 | break; |
| 1403 | case 'd': |
| a6ec74c1 |
1404 | along = (strend - s) / sizeof(double); |
| 1405 | if (len > along) |
| 1406 | len = along; |
| 1407 | if (checksum) { |
| 1408 | while (len-- > 0) { |
| 1409 | Copy(s, &adouble, 1, double); |
| 1410 | s += sizeof(double); |
| 1411 | cdouble += adouble; |
| 1412 | } |
| 1413 | } |
| 1414 | else { |
| 1415 | EXTEND(SP, len); |
| 1416 | EXTEND_MORTAL(len); |
| 1417 | while (len-- > 0) { |
| 1418 | Copy(s, &adouble, 1, double); |
| 1419 | s += sizeof(double); |
| 1420 | sv = NEWSV(48, 0); |
| 1421 | sv_setnv(sv, (NV)adouble); |
| 1422 | PUSHs(sv_2mortal(sv)); |
| 1423 | } |
| 1424 | } |
| 1425 | break; |
| 92d41999 |
1426 | case 'F': |
| 1427 | along = (strend - s) / NVSIZE; |
| 1428 | if (len > along) |
| 1429 | len = along; |
| 1430 | if (checksum) { |
| 1431 | while (len-- > 0) { |
| 1432 | Copy(s, &anv, 1, NV); |
| 1433 | s += NVSIZE; |
| 1434 | cdouble += anv; |
| 1435 | } |
| 1436 | } |
| 1437 | else { |
| 1438 | EXTEND(SP, len); |
| 1439 | EXTEND_MORTAL(len); |
| 1440 | while (len-- > 0) { |
| 1441 | Copy(s, &anv, 1, NV); |
| 1442 | s += NVSIZE; |
| 1443 | sv = NEWSV(48, 0); |
| 1444 | sv_setnv(sv, anv); |
| 1445 | PUSHs(sv_2mortal(sv)); |
| 1446 | } |
| 1447 | } |
| 1448 | break; |
| 1449 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 1450 | case 'D': |
| 1451 | along = (strend - s) / LONG_DOUBLESIZE; |
| 1452 | if (len > along) |
| 1453 | len = along; |
| 1454 | if (checksum) { |
| 1455 | while (len-- > 0) { |
| 1456 | Copy(s, &aldouble, 1, long double); |
| 1457 | s += LONG_DOUBLESIZE; |
| 1458 | cdouble += aldouble; |
| 1459 | } |
| 1460 | } |
| 1461 | else { |
| 1462 | EXTEND(SP, len); |
| 1463 | EXTEND_MORTAL(len); |
| 1464 | while (len-- > 0) { |
| 1465 | Copy(s, &aldouble, 1, long double); |
| 1466 | s += LONG_DOUBLESIZE; |
| 1467 | sv = NEWSV(48, 0); |
| 1468 | sv_setnv(sv, (NV)aldouble); |
| 1469 | PUSHs(sv_2mortal(sv)); |
| 1470 | } |
| 1471 | } |
| 1472 | break; |
| 1473 | #endif |
| a6ec74c1 |
1474 | case 'u': |
| 1475 | /* MKS: |
| 1476 | * Initialise the decode mapping. By using a table driven |
| 1477 | * algorithm, the code will be character-set independent |
| 1478 | * (and just as fast as doing character arithmetic) |
| 1479 | */ |
| 1480 | if (PL_uudmap['M'] == 0) { |
| 1481 | int i; |
| 1482 | |
| 1483 | for (i = 0; i < sizeof(PL_uuemap); i += 1) |
| 1484 | PL_uudmap[(U8)PL_uuemap[i]] = i; |
| 1485 | /* |
| 1486 | * Because ' ' and '`' map to the same value, |
| 1487 | * we need to decode them both the same. |
| 1488 | */ |
| 1489 | PL_uudmap[' '] = 0; |
| 1490 | } |
| 1491 | |
| 1492 | along = (strend - s) * 3 / 4; |
| 1493 | sv = NEWSV(42, along); |
| 1494 | if (along) |
| 1495 | SvPOK_on(sv); |
| 1496 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
| 1497 | I32 a, b, c, d; |
| 1498 | char hunk[4]; |
| 1499 | |
| 1500 | hunk[3] = '\0'; |
| 1501 | len = PL_uudmap[*(U8*)s++] & 077; |
| 1502 | while (len > 0) { |
| 1503 | if (s < strend && ISUUCHAR(*s)) |
| 1504 | a = PL_uudmap[*(U8*)s++] & 077; |
| 1505 | else |
| 1506 | a = 0; |
| 1507 | if (s < strend && ISUUCHAR(*s)) |
| 1508 | b = PL_uudmap[*(U8*)s++] & 077; |
| 1509 | else |
| 1510 | b = 0; |
| 1511 | if (s < strend && ISUUCHAR(*s)) |
| 1512 | c = PL_uudmap[*(U8*)s++] & 077; |
| 1513 | else |
| 1514 | c = 0; |
| 1515 | if (s < strend && ISUUCHAR(*s)) |
| 1516 | d = PL_uudmap[*(U8*)s++] & 077; |
| 1517 | else |
| 1518 | d = 0; |
| 1519 | hunk[0] = (a << 2) | (b >> 4); |
| 1520 | hunk[1] = (b << 4) | (c >> 2); |
| 1521 | hunk[2] = (c << 6) | d; |
| 1522 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
| 1523 | len -= 3; |
| 1524 | } |
| 1525 | if (*s == '\n') |
| 1526 | s++; |
| 1527 | else if (s[1] == '\n') /* possible checksum byte */ |
| 1528 | s += 2; |
| 1529 | } |
| 1530 | XPUSHs(sv_2mortal(sv)); |
| 1531 | break; |
| 1532 | } |
| 1533 | if (checksum) { |
| 1534 | sv = NEWSV(42, 0); |
| 1535 | if (strchr("fFdD", datumtype) || |
| 92d41999 |
1536 | (checksum > bits_in_uv && |
| 1537 | strchr("csSiIlLnNUvVqQjJ", datumtype)) ) { |
| a6ec74c1 |
1538 | NV trouble; |
| 1539 | |
| fa8ec7c1 |
1540 | adouble = (NV) (1 << (checksum & 15)); |
| a6ec74c1 |
1541 | while (checksum >= 16) { |
| 1542 | checksum -= 16; |
| 1543 | adouble *= 65536.0; |
| 1544 | } |
| a6ec74c1 |
1545 | while (cdouble < 0.0) |
| 1546 | cdouble += adouble; |
| 1547 | cdouble = Perl_modf(cdouble / adouble, &trouble) * adouble; |
| 1548 | sv_setnv(sv, cdouble); |
| 1549 | } |
| 1550 | else { |
| fa8ec7c1 |
1551 | if (checksum < bits_in_uv) { |
| 1552 | UV mask = ((UV)1 << checksum) - 1; |
| 92d41999 |
1553 | |
| 1554 | cuv &= mask; |
| a6ec74c1 |
1555 | } |
| 92d41999 |
1556 | sv_setuv(sv, cuv); |
| a6ec74c1 |
1557 | } |
| 1558 | XPUSHs(sv_2mortal(sv)); |
| 1559 | checksum = 0; |
| 1560 | } |
| 1561 | } |
| 18529408 |
1562 | if (new_s) |
| 1563 | *new_s = s; |
| 1564 | PUTBACK; |
| 1565 | return SP - PL_stack_base - start_sp_offset; |
| 1566 | } |
| 1567 | |
| 1568 | PP(pp_unpack) |
| 1569 | { |
| 1570 | dSP; |
| 1571 | dPOPPOPssrl; |
| 1572 | I32 gimme = GIMME_V; |
| 1573 | STRLEN llen; |
| 1574 | STRLEN rlen; |
| 1575 | register char *pat = SvPV(left, llen); |
| 1576 | #ifdef PACKED_IS_OCTETS |
| 1577 | /* Packed side is assumed to be octets - so force downgrade if it |
| 1578 | has been UTF-8 encoded by accident |
| 1579 | */ |
| 1580 | register char *s = SvPVbyte(right, rlen); |
| 1581 | #else |
| 1582 | register char *s = SvPV(right, rlen); |
| 1583 | #endif |
| 1584 | char *strend = s + rlen; |
| 1585 | register char *patend = pat + llen; |
| 1586 | register I32 cnt; |
| 1587 | |
| 1588 | PUTBACK; |
| 1589 | cnt = unpack_str(pat, patend, s, s, strend, NULL, 0, |
| 1590 | ((gimme == G_SCALAR) ? UNPACK_ONLY_ONE : 0) |
| 1591 | | (DO_UTF8(right) ? UNPACK_DO_UTF8 : 0)); |
| 1592 | SPAGAIN; |
| 1593 | if ( !cnt && gimme == G_SCALAR ) |
| 1594 | PUSHs(&PL_sv_undef); |
| a6ec74c1 |
1595 | RETURN; |
| 1596 | } |
| 1597 | |
| 1598 | STATIC void |
| 1599 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) |
| 1600 | { |
| 1601 | char hunk[5]; |
| 1602 | |
| 1603 | *hunk = PL_uuemap[len]; |
| 1604 | sv_catpvn(sv, hunk, 1); |
| 1605 | hunk[4] = '\0'; |
| 1606 | while (len > 2) { |
| 1607 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
| 1608 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; |
| 1609 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; |
| 1610 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; |
| 1611 | sv_catpvn(sv, hunk, 4); |
| 1612 | s += 3; |
| 1613 | len -= 3; |
| 1614 | } |
| 1615 | if (len > 0) { |
| 1616 | char r = (len > 1 ? s[1] : '\0'); |
| 1617 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
| 1618 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; |
| 1619 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; |
| 1620 | hunk[3] = PL_uuemap[0]; |
| 1621 | sv_catpvn(sv, hunk, 4); |
| 1622 | } |
| 1623 | sv_catpvn(sv, "\n", 1); |
| 1624 | } |
| 1625 | |
| 1626 | STATIC SV * |
| 1627 | S_is_an_int(pTHX_ char *s, STRLEN l) |
| 1628 | { |
| 1629 | STRLEN n_a; |
| 1630 | SV *result = newSVpvn(s, l); |
| 1631 | char *result_c = SvPV(result, n_a); /* convenience */ |
| 1632 | char *out = result_c; |
| 1633 | bool skip = 1; |
| 1634 | bool ignore = 0; |
| 1635 | |
| 1636 | while (*s) { |
| 1637 | switch (*s) { |
| 1638 | case ' ': |
| 1639 | break; |
| 1640 | case '+': |
| 1641 | if (!skip) { |
| 1642 | SvREFCNT_dec(result); |
| 1643 | return (NULL); |
| 1644 | } |
| 1645 | break; |
| 1646 | case '0': |
| 1647 | case '1': |
| 1648 | case '2': |
| 1649 | case '3': |
| 1650 | case '4': |
| 1651 | case '5': |
| 1652 | case '6': |
| 1653 | case '7': |
| 1654 | case '8': |
| 1655 | case '9': |
| 1656 | skip = 0; |
| 1657 | if (!ignore) { |
| 1658 | *(out++) = *s; |
| 1659 | } |
| 1660 | break; |
| 1661 | case '.': |
| 1662 | ignore = 1; |
| 1663 | break; |
| 1664 | default: |
| 1665 | SvREFCNT_dec(result); |
| 1666 | return (NULL); |
| 1667 | } |
| 1668 | s++; |
| 1669 | } |
| 1670 | *(out++) = '\0'; |
| 1671 | SvCUR_set(result, out - result_c); |
| 1672 | return (result); |
| 1673 | } |
| 1674 | |
| 1675 | /* pnum must be '\0' terminated */ |
| 1676 | STATIC int |
| 1677 | S_div128(pTHX_ SV *pnum, bool *done) |
| 1678 | { |
| 1679 | STRLEN len; |
| 1680 | char *s = SvPV(pnum, len); |
| 1681 | int m = 0; |
| 1682 | int r = 0; |
| 1683 | char *t = s; |
| 1684 | |
| 1685 | *done = 1; |
| 1686 | while (*t) { |
| 1687 | int i; |
| 1688 | |
| 1689 | i = m * 10 + (*t - '0'); |
| 1690 | m = i & 0x7F; |
| 1691 | r = (i >> 7); /* r < 10 */ |
| 1692 | if (r) { |
| 1693 | *done = 0; |
| 1694 | } |
| 1695 | *(t++) = '0' + r; |
| 1696 | } |
| 1697 | *(t++) = '\0'; |
| 1698 | SvCUR_set(pnum, (STRLEN) (t - s)); |
| 1699 | return (m); |
| 1700 | } |
| 1701 | |
| 18529408 |
1702 | #define PACK_CHILD 0x1 |
| a6ec74c1 |
1703 | |
| 18529408 |
1704 | /* |
| 1705 | =for apidoc pack_cat |
| 1706 | |
| 1707 | The engine implementing pack() Perl function. |
| 1708 | |
| 1709 | =cut */ |
| 1710 | |
| 1711 | void |
| 1712 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) |
| a6ec74c1 |
1713 | { |
| a6ec74c1 |
1714 | register I32 items; |
| 1715 | STRLEN fromlen; |
| a6ec74c1 |
1716 | register I32 len; |
| 1717 | I32 datumtype; |
| 1718 | SV *fromstr; |
| 1719 | /*SUPPRESS 442*/ |
| 1720 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; |
| 1721 | static char *space10 = " "; |
| 18529408 |
1722 | int star; |
| a6ec74c1 |
1723 | |
| 1724 | /* These must not be in registers: */ |
| 1725 | char achar; |
| 1726 | I16 ashort; |
| 1727 | int aint; |
| 1728 | unsigned int auint; |
| 1729 | I32 along; |
| 1730 | U32 aulong; |
| 92d41999 |
1731 | IV aiv; |
| 1732 | UV auv; |
| 1733 | NV anv; |
| 1734 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 1735 | long double aldouble; |
| 1736 | #endif |
| a6ec74c1 |
1737 | #ifdef HAS_QUAD |
| 1738 | Quad_t aquad; |
| 1739 | Uquad_t auquad; |
| 1740 | #endif |
| 1741 | char *aptr; |
| 1742 | float afloat; |
| 1743 | double adouble; |
| 1744 | int commas = 0; |
| 1745 | #ifdef PERL_NATINT_PACK |
| 1746 | int natint; /* native integer */ |
| 1747 | #endif |
| 1748 | |
| 18529408 |
1749 | items = endlist - beglist; |
| 1750 | #ifndef PACKED_IS_OCTETS |
| 1751 | pat = next_symbol(pat, patend); |
| 1752 | if (pat < patend && *pat == 'U' && !flags) |
| 1753 | SvUTF8_on(cat); |
| 1754 | #endif |
| 1755 | while ((pat = next_symbol(pat, patend)) < patend) { |
| a6ec74c1 |
1756 | SV *lengthcode = Nullsv; |
| 18529408 |
1757 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
| a6ec74c1 |
1758 | datumtype = *pat++ & 0xFF; |
| 1759 | #ifdef PERL_NATINT_PACK |
| 1760 | natint = 0; |
| 1761 | #endif |
| a6ec74c1 |
1762 | if (*pat == '!') { |
| 62f95557 |
1763 | static const char natstr[] = "sSiIlLxX"; |
| a6ec74c1 |
1764 | |
| 1765 | if (strchr(natstr, datumtype)) { |
| 62f95557 |
1766 | if (datumtype == 'x' || datumtype == 'X') { |
| 1767 | datumtype |= TYPE_IS_SHRIEKING; |
| 1768 | } else { /* XXXX Should be redone similarly! */ |
| a6ec74c1 |
1769 | #ifdef PERL_NATINT_PACK |
| 62f95557 |
1770 | natint = 1; |
| a6ec74c1 |
1771 | #endif |
| 62f95557 |
1772 | } |
| a6ec74c1 |
1773 | pat++; |
| 1774 | } |
| 1775 | else |
| 518eff30 |
1776 | Perl_croak(aTHX_ "'!' allowed only after types %s", natstr); |
| a6ec74c1 |
1777 | } |
| 18529408 |
1778 | len = find_count(&pat, patend, &star); |
| 1779 | if (star > 0) /* Count is '*' */ |
| a6ec74c1 |
1780 | len = strchr("@Xxu", datumtype) ? 0 : items; |
| 18529408 |
1781 | else if (star < 0) /* Default len */ |
| a6ec74c1 |
1782 | len = 1; |
| 18529408 |
1783 | if (*pat == '/') { /* doing lookahead how... */ |
| a6ec74c1 |
1784 | ++pat; |
| 1785 | if ((*pat != 'a' && *pat != 'A' && *pat != 'Z') || pat[1] != '*') |
| 518eff30 |
1786 | Perl_croak(aTHX_ "/ must be followed by a*, A* or Z*"); |
| a6ec74c1 |
1787 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 |
| 18529408 |
1788 | ? *beglist : &PL_sv_no) |
| a6ec74c1 |
1789 | + (*pat == 'Z' ? 1 : 0))); |
| 1790 | } |
| 1791 | switch(datumtype) { |
| 1792 | default: |
| 518eff30 |
1793 | Perl_croak(aTHX_ "Invalid type in pack: '%c'", (int)datumtype); |
| a6ec74c1 |
1794 | case ',': /* grandfather in commas but with a warning */ |
| 1795 | if (commas++ == 0 && ckWARN(WARN_PACK)) |
| 1796 | Perl_warner(aTHX_ WARN_PACK, |
| 1797 | "Invalid type in pack: '%c'", (int)datumtype); |
| 1798 | break; |
| 1799 | case '%': |
| 518eff30 |
1800 | Perl_croak(aTHX_ "%% may only be used in unpack"); |
| a6ec74c1 |
1801 | case '@': |
| 1802 | len -= SvCUR(cat); |
| 1803 | if (len > 0) |
| 1804 | goto grow; |
| 1805 | len = -len; |
| 1806 | if (len > 0) |
| 1807 | goto shrink; |
| 1808 | break; |
| 18529408 |
1809 | case '(': |
| 1810 | { |
| 1811 | char *beg = pat; |
| 1812 | SV **savebeglist = beglist; /* beglist de-register-ed */ |
| 1813 | |
| 1814 | if (star >= 0) |
| 518eff30 |
1815 | Perl_croak(aTHX_ "()-group starts with a count"); |
| 18529408 |
1816 | aptr = group_end(beg, patend, ')'); |
| 1817 | pat = aptr + 1; |
| 1818 | if (star != -2) { |
| 1819 | len = find_count(&pat, patend, &star); |
| 1820 | if (star < 0) /* No count */ |
| 1821 | len = 1; |
| 1822 | else if (star > 0) /* Star */ |
| 1823 | len = items; /* long enough? */ |
| 1824 | } |
| 1825 | while (len--) { |
| 1826 | pack_cat(cat, beg, aptr, savebeglist, endlist, |
| 1827 | &savebeglist, PACK_CHILD); |
| 1828 | if (star > 0 && savebeglist == endlist) |
| 1829 | break; /* No way to continue */ |
| 1830 | } |
| 1831 | beglist = savebeglist; |
| 1832 | break; |
| 1833 | } |
| 62f95557 |
1834 | case 'X' | TYPE_IS_SHRIEKING: |
| 1835 | if (!len) /* Avoid division by 0 */ |
| 1836 | len = 1; |
| 1837 | len = (SvCUR(cat)) % len; |
| 1838 | /* FALL THROUGH */ |
| a6ec74c1 |
1839 | case 'X': |
| 1840 | shrink: |
| 1841 | if (SvCUR(cat) < len) |
| 518eff30 |
1842 | Perl_croak(aTHX_ "X outside of string"); |
| a6ec74c1 |
1843 | SvCUR(cat) -= len; |
| 1844 | *SvEND(cat) = '\0'; |
| 1845 | break; |
| 62f95557 |
1846 | case 'x' | TYPE_IS_SHRIEKING: |
| 1847 | if (!len) /* Avoid division by 0 */ |
| 1848 | len = 1; |
| 1849 | aint = (SvCUR(cat)) % len; |
| 1850 | if (aint) /* Other portable ways? */ |
| 1851 | len = len - aint; |
| 1852 | else |
| 1853 | len = 0; |
| 1854 | /* FALL THROUGH */ |
| a6ec74c1 |
1855 | case 'x': |
| 1856 | grow: |
| 1857 | while (len >= 10) { |
| 1858 | sv_catpvn(cat, null10, 10); |
| 1859 | len -= 10; |
| 1860 | } |
| 1861 | sv_catpvn(cat, null10, len); |
| 1862 | break; |
| 1863 | case 'A': |
| 1864 | case 'Z': |
| 1865 | case 'a': |
| 1866 | fromstr = NEXTFROM; |
| 1867 | aptr = SvPV(fromstr, fromlen); |
| 18529408 |
1868 | if (star > 0) { /* -2 after '/' */ |
| a6ec74c1 |
1869 | len = fromlen; |
| 1870 | if (datumtype == 'Z') |
| 1871 | ++len; |
| 1872 | } |
| 1873 | if (fromlen >= len) { |
| 1874 | sv_catpvn(cat, aptr, len); |
| 1875 | if (datumtype == 'Z') |
| 1876 | *(SvEND(cat)-1) = '\0'; |
| 1877 | } |
| 1878 | else { |
| 1879 | sv_catpvn(cat, aptr, fromlen); |
| 1880 | len -= fromlen; |
| 1881 | if (datumtype == 'A') { |
| 1882 | while (len >= 10) { |
| 1883 | sv_catpvn(cat, space10, 10); |
| 1884 | len -= 10; |
| 1885 | } |
| 1886 | sv_catpvn(cat, space10, len); |
| 1887 | } |
| 1888 | else { |
| 1889 | while (len >= 10) { |
| 1890 | sv_catpvn(cat, null10, 10); |
| 1891 | len -= 10; |
| 1892 | } |
| 1893 | sv_catpvn(cat, null10, len); |
| 1894 | } |
| 1895 | } |
| 1896 | break; |
| 1897 | case 'B': |
| 1898 | case 'b': |
| 1899 | { |
| 1900 | register char *str; |
| 1901 | I32 saveitems; |
| 1902 | |
| 1903 | fromstr = NEXTFROM; |
| 1904 | saveitems = items; |
| 1905 | str = SvPV(fromstr, fromlen); |
| 18529408 |
1906 | if (star > 0) |
| a6ec74c1 |
1907 | len = fromlen; |
| 1908 | aint = SvCUR(cat); |
| 1909 | SvCUR(cat) += (len+7)/8; |
| 1910 | SvGROW(cat, SvCUR(cat) + 1); |
| 1911 | aptr = SvPVX(cat) + aint; |
| 1912 | if (len > fromlen) |
| 1913 | len = fromlen; |
| 1914 | aint = len; |
| 1915 | items = 0; |
| 1916 | if (datumtype == 'B') { |
| 1917 | for (len = 0; len++ < aint;) { |
| 1918 | items |= *str++ & 1; |
| 1919 | if (len & 7) |
| 1920 | items <<= 1; |
| 1921 | else { |
| 1922 | *aptr++ = items & 0xff; |
| 1923 | items = 0; |
| 1924 | } |
| 1925 | } |
| 1926 | } |
| 1927 | else { |
| 1928 | for (len = 0; len++ < aint;) { |
| 1929 | if (*str++ & 1) |
| 1930 | items |= 128; |
| 1931 | if (len & 7) |
| 1932 | items >>= 1; |
| 1933 | else { |
| 1934 | *aptr++ = items & 0xff; |
| 1935 | items = 0; |
| 1936 | } |
| 1937 | } |
| 1938 | } |
| 1939 | if (aint & 7) { |
| 1940 | if (datumtype == 'B') |
| 1941 | items <<= 7 - (aint & 7); |
| 1942 | else |
| 1943 | items >>= 7 - (aint & 7); |
| 1944 | *aptr++ = items & 0xff; |
| 1945 | } |
| 1946 | str = SvPVX(cat) + SvCUR(cat); |
| 1947 | while (aptr <= str) |
| 1948 | *aptr++ = '\0'; |
| 1949 | |
| 1950 | items = saveitems; |
| 1951 | } |
| 1952 | break; |
| 1953 | case 'H': |
| 1954 | case 'h': |
| 1955 | { |
| 1956 | register char *str; |
| 1957 | I32 saveitems; |
| 1958 | |
| 1959 | fromstr = NEXTFROM; |
| 1960 | saveitems = items; |
| 1961 | str = SvPV(fromstr, fromlen); |
| 18529408 |
1962 | if (star > 0) |
| a6ec74c1 |
1963 | len = fromlen; |
| 1964 | aint = SvCUR(cat); |
| 1965 | SvCUR(cat) += (len+1)/2; |
| 1966 | SvGROW(cat, SvCUR(cat) + 1); |
| 1967 | aptr = SvPVX(cat) + aint; |
| 1968 | if (len > fromlen) |
| 1969 | len = fromlen; |
| 1970 | aint = len; |
| 1971 | items = 0; |
| 1972 | if (datumtype == 'H') { |
| 1973 | for (len = 0; len++ < aint;) { |
| 1974 | if (isALPHA(*str)) |
| 1975 | items |= ((*str++ & 15) + 9) & 15; |
| 1976 | else |
| 1977 | items |= *str++ & 15; |
| 1978 | if (len & 1) |
| 1979 | items <<= 4; |
| 1980 | else { |
| 1981 | *aptr++ = items & 0xff; |
| 1982 | items = 0; |
| 1983 | } |
| 1984 | } |
| 1985 | } |
| 1986 | else { |
| 1987 | for (len = 0; len++ < aint;) { |
| 1988 | if (isALPHA(*str)) |
| 1989 | items |= (((*str++ & 15) + 9) & 15) << 4; |
| 1990 | else |
| 1991 | items |= (*str++ & 15) << 4; |
| 1992 | if (len & 1) |
| 1993 | items >>= 4; |
| 1994 | else { |
| 1995 | *aptr++ = items & 0xff; |
| 1996 | items = 0; |
| 1997 | } |
| 1998 | } |
| 1999 | } |
| 2000 | if (aint & 1) |
| 2001 | *aptr++ = items & 0xff; |
| 2002 | str = SvPVX(cat) + SvCUR(cat); |
| 2003 | while (aptr <= str) |
| 2004 | *aptr++ = '\0'; |
| 2005 | |
| 2006 | items = saveitems; |
| 2007 | } |
| 2008 | break; |
| 2009 | case 'C': |
| 2010 | case 'c': |
| 2011 | while (len-- > 0) { |
| 2012 | fromstr = NEXTFROM; |
| 2013 | switch (datumtype) { |
| 2014 | case 'C': |
| 2015 | aint = SvIV(fromstr); |
| 2016 | if ((aint < 0 || aint > 255) && |
| 2017 | ckWARN(WARN_PACK)) |
| 2018 | Perl_warner(aTHX_ WARN_PACK, |
| 2019 | "Character in \"C\" format wrapped"); |
| 2020 | achar = aint & 255; |
| 2021 | sv_catpvn(cat, &achar, sizeof(char)); |
| 2022 | break; |
| 2023 | case 'c': |
| 2024 | aint = SvIV(fromstr); |
| 2025 | if ((aint < -128 || aint > 127) && |
| 2026 | ckWARN(WARN_PACK)) |
| 2027 | Perl_warner(aTHX_ WARN_PACK, |
| 2028 | "Character in \"c\" format wrapped"); |
| 2029 | achar = aint & 255; |
| 2030 | sv_catpvn(cat, &achar, sizeof(char)); |
| 2031 | break; |
| 2032 | } |
| 2033 | } |
| 2034 | break; |
| 2035 | case 'U': |
| 2036 | while (len-- > 0) { |
| 2037 | fromstr = NEXTFROM; |
| e87322b2 |
2038 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
| a6ec74c1 |
2039 | SvGROW(cat, SvCUR(cat) + UTF8_MAXLEN + 1); |
| 2040 | SvCUR_set(cat, (char*)uvchr_to_utf8((U8*)SvEND(cat),auint) |
| 2041 | - SvPVX(cat)); |
| 2042 | } |
| 2043 | *SvEND(cat) = '\0'; |
| 2044 | break; |
| 2045 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
| 2046 | case 'f': |
| a6ec74c1 |
2047 | while (len-- > 0) { |
| 2048 | fromstr = NEXTFROM; |
| 2049 | afloat = (float)SvNV(fromstr); |
| 2050 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
| 2051 | } |
| 2052 | break; |
| 2053 | case 'd': |
| a6ec74c1 |
2054 | while (len-- > 0) { |
| 2055 | fromstr = NEXTFROM; |
| 2056 | adouble = (double)SvNV(fromstr); |
| 2057 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
| 2058 | } |
| 2059 | break; |
| 92d41999 |
2060 | case 'F': |
| 2061 | while (len-- > 0) { |
| 2062 | fromstr = NEXTFROM; |
| 2063 | anv = SvNV(fromstr); |
| 2064 | sv_catpvn(cat, (char *)&anv, NVSIZE); |
| 2065 | } |
| 2066 | break; |
| 2067 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 2068 | case 'D': |
| 2069 | while (len-- > 0) { |
| 2070 | fromstr = NEXTFROM; |
| 2071 | aldouble = (long double)SvNV(fromstr); |
| 2072 | sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE); |
| 2073 | } |
| 2074 | break; |
| 2075 | #endif |
| a6ec74c1 |
2076 | case 'n': |
| 2077 | while (len-- > 0) { |
| 2078 | fromstr = NEXTFROM; |
| 2079 | ashort = (I16)SvIV(fromstr); |
| 2080 | #ifdef HAS_HTONS |
| 2081 | ashort = PerlSock_htons(ashort); |
| 2082 | #endif |
| 2083 | CAT16(cat, &ashort); |
| 2084 | } |
| 2085 | break; |
| 2086 | case 'v': |
| 2087 | while (len-- > 0) { |
| 2088 | fromstr = NEXTFROM; |
| 2089 | ashort = (I16)SvIV(fromstr); |
| 2090 | #ifdef HAS_HTOVS |
| 2091 | ashort = htovs(ashort); |
| 2092 | #endif |
| 2093 | CAT16(cat, &ashort); |
| 2094 | } |
| 2095 | break; |
| 2096 | case 'S': |
| 2097 | #if SHORTSIZE != SIZE16 |
| 2098 | if (natint) { |
| 2099 | unsigned short aushort; |
| 2100 | |
| 2101 | while (len-- > 0) { |
| 2102 | fromstr = NEXTFROM; |
| 2103 | aushort = SvUV(fromstr); |
| 2104 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
| 2105 | } |
| 2106 | } |
| 2107 | else |
| 2108 | #endif |
| 2109 | { |
| 2110 | U16 aushort; |
| 2111 | |
| 2112 | while (len-- > 0) { |
| 2113 | fromstr = NEXTFROM; |
| 2114 | aushort = (U16)SvUV(fromstr); |
| 2115 | CAT16(cat, &aushort); |
| 2116 | } |
| 2117 | |
| 2118 | } |
| 2119 | break; |
| 2120 | case 's': |
| 2121 | #if SHORTSIZE != SIZE16 |
| 2122 | if (natint) { |
| 2123 | short ashort; |
| 2124 | |
| 2125 | while (len-- > 0) { |
| 2126 | fromstr = NEXTFROM; |
| 2127 | ashort = SvIV(fromstr); |
| 2128 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
| 2129 | } |
| 2130 | } |
| 2131 | else |
| 2132 | #endif |
| 2133 | { |
| 2134 | while (len-- > 0) { |
| 2135 | fromstr = NEXTFROM; |
| 2136 | ashort = (I16)SvIV(fromstr); |
| 2137 | CAT16(cat, &ashort); |
| 2138 | } |
| 2139 | } |
| 2140 | break; |
| 2141 | case 'I': |
| 2142 | while (len-- > 0) { |
| 2143 | fromstr = NEXTFROM; |
| 2144 | auint = SvUV(fromstr); |
| 2145 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
| 2146 | } |
| 2147 | break; |
| 92d41999 |
2148 | case 'j': |
| 2149 | while (len-- > 0) { |
| 2150 | fromstr = NEXTFROM; |
| 2151 | aiv = SvIV(fromstr); |
| 2152 | sv_catpvn(cat, (char*)&aiv, IVSIZE); |
| 2153 | } |
| 2154 | break; |
| 2155 | case 'J': |
| 2156 | while (len-- > 0) { |
| 2157 | fromstr = NEXTFROM; |
| 2158 | auv = SvUV(fromstr); |
| 2159 | sv_catpvn(cat, (char*)&auv, UVSIZE); |
| 2160 | } |
| 2161 | break; |
| a6ec74c1 |
2162 | case 'w': |
| 2163 | while (len-- > 0) { |
| 2164 | fromstr = NEXTFROM; |
| 2165 | adouble = Perl_floor(SvNV(fromstr)); |
| 2166 | |
| 2167 | if (adouble < 0) |
| 518eff30 |
2168 | Perl_croak(aTHX_ "Cannot compress negative numbers"); |
| a6ec74c1 |
2169 | |
| 2170 | if ( |
| 2171 | #if UVSIZE > 4 && UVSIZE >= NVSIZE |
| 2172 | adouble <= 0xffffffff |
| 2173 | #else |
| 2174 | # ifdef CXUX_BROKEN_CONSTANT_CONVERT |
| 2175 | adouble <= UV_MAX_cxux |
| 2176 | # else |
| 2177 | adouble <= UV_MAX |
| 2178 | # endif |
| 2179 | #endif |
| 2180 | ) |
| 2181 | { |
| 2182 | char buf[1 + sizeof(UV)]; |
| 2183 | char *in = buf + sizeof(buf); |
| 2184 | UV auv = U_V(adouble); |
| 2185 | |
| 2186 | do { |
| 2187 | *--in = (auv & 0x7f) | 0x80; |
| 2188 | auv >>= 7; |
| 2189 | } while (auv); |
| 2190 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
| 2191 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
| 2192 | } |
| 2193 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ |
| 2194 | char *from, *result, *in; |
| 2195 | SV *norm; |
| 2196 | STRLEN len; |
| 2197 | bool done; |
| 2198 | |
| 2199 | /* Copy string and check for compliance */ |
| 2200 | from = SvPV(fromstr, len); |
| 2201 | if ((norm = is_an_int(from, len)) == NULL) |
| 518eff30 |
2202 | Perl_croak(aTHX_ "can compress only unsigned integer"); |
| a6ec74c1 |
2203 | |
| 2204 | New('w', result, len, char); |
| 2205 | in = result + len; |
| 2206 | done = FALSE; |
| 2207 | while (!done) |
| 2208 | *--in = div128(norm, &done) | 0x80; |
| 2209 | result[len - 1] &= 0x7F; /* clear continue bit */ |
| 2210 | sv_catpvn(cat, in, (result + len) - in); |
| 2211 | Safefree(result); |
| 2212 | SvREFCNT_dec(norm); /* free norm */ |
| 2213 | } |
| 2214 | else if (SvNOKp(fromstr)) { |
| 2215 | char buf[sizeof(double) * 2]; /* 8/7 <= 2 */ |
| 2216 | char *in = buf + sizeof(buf); |
| 2217 | |
| 2218 | do { |
| 2219 | double next = floor(adouble / 128); |
| 2220 | *--in = (unsigned char)(adouble - (next * 128)) | 0x80; |
| 2221 | if (in <= buf) /* this cannot happen ;-) */ |
| 518eff30 |
2222 | Perl_croak(aTHX_ "Cannot compress integer"); |
| a6ec74c1 |
2223 | adouble = next; |
| 2224 | } while (adouble > 0); |
| 2225 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
| 2226 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
| 2227 | } |
| 735b914b |
2228 | else { |
| 2229 | char *from, *result, *in; |
| 2230 | SV *norm; |
| 2231 | STRLEN len; |
| 2232 | bool done; |
| 2233 | |
| 2234 | /* Copy string and check for compliance */ |
| 2235 | from = SvPV(fromstr, len); |
| 2236 | if ((norm = is_an_int(from, len)) == NULL) |
| 518eff30 |
2237 | Perl_croak(aTHX_ "can compress only unsigned integer"); |
| 735b914b |
2238 | |
| 2239 | New('w', result, len, char); |
| 2240 | in = result + len; |
| 2241 | done = FALSE; |
| 2242 | while (!done) |
| 2243 | *--in = div128(norm, &done) | 0x80; |
| 2244 | result[len - 1] &= 0x7F; /* clear continue bit */ |
| 2245 | sv_catpvn(cat, in, (result + len) - in); |
| 2246 | Safefree(result); |
| 2247 | SvREFCNT_dec(norm); /* free norm */ |
| 2248 | } |
| a6ec74c1 |
2249 | } |
| 2250 | break; |
| 2251 | case 'i': |
| 2252 | while (len-- > 0) { |
| 2253 | fromstr = NEXTFROM; |
| 2254 | aint = SvIV(fromstr); |
| 2255 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
| 2256 | } |
| 2257 | break; |
| 2258 | case 'N': |
| 2259 | while (len-- > 0) { |
| 2260 | fromstr = NEXTFROM; |
| 2261 | aulong = SvUV(fromstr); |
| 2262 | #ifdef HAS_HTONL |
| 2263 | aulong = PerlSock_htonl(aulong); |
| 2264 | #endif |
| 2265 | CAT32(cat, &aulong); |
| 2266 | } |
| 2267 | break; |
| 2268 | case 'V': |
| 2269 | while (len-- > 0) { |
| 2270 | fromstr = NEXTFROM; |
| 2271 | aulong = SvUV(fromstr); |
| 2272 | #ifdef HAS_HTOVL |
| 2273 | aulong = htovl(aulong); |
| 2274 | #endif |
| 2275 | CAT32(cat, &aulong); |
| 2276 | } |
| 2277 | break; |
| 2278 | case 'L': |
| 2279 | #if LONGSIZE != SIZE32 |
| 2280 | if (natint) { |
| 2281 | unsigned long aulong; |
| 2282 | |
| 2283 | while (len-- > 0) { |
| 2284 | fromstr = NEXTFROM; |
| 2285 | aulong = SvUV(fromstr); |
| 2286 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
| 2287 | } |
| 2288 | } |
| 2289 | else |
| 2290 | #endif |
| 2291 | { |
| 2292 | while (len-- > 0) { |
| 2293 | fromstr = NEXTFROM; |
| 2294 | aulong = SvUV(fromstr); |
| 2295 | CAT32(cat, &aulong); |
| 2296 | } |
| 2297 | } |
| 2298 | break; |
| 2299 | case 'l': |
| 2300 | #if LONGSIZE != SIZE32 |
| 2301 | if (natint) { |
| 2302 | long along; |
| 2303 | |
| 2304 | while (len-- > 0) { |
| 2305 | fromstr = NEXTFROM; |
| 2306 | along = SvIV(fromstr); |
| 2307 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
| 2308 | } |
| 2309 | } |
| 2310 | else |
| 2311 | #endif |
| 2312 | { |
| 2313 | while (len-- > 0) { |
| 2314 | fromstr = NEXTFROM; |
| 2315 | along = SvIV(fromstr); |
| 2316 | CAT32(cat, &along); |
| 2317 | } |
| 2318 | } |
| 2319 | break; |
| 2320 | #ifdef HAS_QUAD |
| 2321 | case 'Q': |
| 2322 | while (len-- > 0) { |
| 2323 | fromstr = NEXTFROM; |
| 2324 | auquad = (Uquad_t)SvUV(fromstr); |
| 2325 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
| 2326 | } |
| 2327 | break; |
| 2328 | case 'q': |
| 2329 | while (len-- > 0) { |
| 2330 | fromstr = NEXTFROM; |
| 2331 | aquad = (Quad_t)SvIV(fromstr); |
| 2332 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
| 2333 | } |
| 2334 | break; |
| 2335 | #endif |
| 2336 | case 'P': |
| 2337 | len = 1; /* assume SV is correct length */ |
| 2338 | /* FALL THROUGH */ |
| 2339 | case 'p': |
| 2340 | while (len-- > 0) { |
| 2341 | fromstr = NEXTFROM; |
| 2342 | if (fromstr == &PL_sv_undef) |
| 2343 | aptr = NULL; |
| 2344 | else { |
| 2345 | STRLEN n_a; |
| 2346 | /* XXX better yet, could spirit away the string to |
| 2347 | * a safe spot and hang on to it until the result |
| 2348 | * of pack() (and all copies of the result) are |
| 2349 | * gone. |
| 2350 | */ |
| 2351 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) |
| 2352 | || (SvPADTMP(fromstr) |
| 2353 | && !SvREADONLY(fromstr)))) |
| 2354 | { |
| 2355 | Perl_warner(aTHX_ WARN_PACK, |
| 2356 | "Attempt to pack pointer to temporary value"); |
| 2357 | } |
| 2358 | if (SvPOK(fromstr) || SvNIOK(fromstr)) |
| 2359 | aptr = SvPV(fromstr,n_a); |
| 2360 | else |
| 2361 | aptr = SvPV_force(fromstr,n_a); |
| 2362 | } |
| 2363 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
| 2364 | } |
| 2365 | break; |
| 2366 | case 'u': |
| 2367 | fromstr = NEXTFROM; |
| 2368 | aptr = SvPV(fromstr, fromlen); |
| 2369 | SvGROW(cat, fromlen * 4 / 3); |
| 19c9db5e |
2370 | if (len <= 2) |
| a6ec74c1 |
2371 | len = 45; |
| 2372 | else |
| 2373 | len = len / 3 * 3; |
| 2374 | while (fromlen > 0) { |
| 2375 | I32 todo; |
| 2376 | |
| 2377 | if (fromlen > len) |
| 2378 | todo = len; |
| 2379 | else |
| 2380 | todo = fromlen; |
| 2381 | doencodes(cat, aptr, todo); |
| 2382 | fromlen -= todo; |
| 2383 | aptr += todo; |
| 2384 | } |
| 2385 | break; |
| 2386 | } |
| 2387 | } |
| 18529408 |
2388 | if (next_in_list) |
| 2389 | *next_in_list = beglist; |
| 2390 | } |
| 2391 | #undef NEXTFROM |
| 2392 | |
| 2393 | |
| 2394 | PP(pp_pack) |
| 2395 | { |
| 2396 | dSP; dMARK; dORIGMARK; dTARGET; |
| 2397 | register SV *cat = TARG; |
| 2398 | STRLEN fromlen; |
| 2399 | register char *pat = SvPVx(*++MARK, fromlen); |
| 2400 | register char *patend = pat + fromlen; |
| 2401 | |
| 2402 | MARK++; |
| 2403 | sv_setpvn(cat, "", 0); |
| 2404 | |
| 2405 | pack_cat(cat, pat, patend, MARK, SP + 1, NULL, 0); |
| 2406 | |
| a6ec74c1 |
2407 | SvSETMAGIC(cat); |
| 2408 | SP = ORIGMARK; |
| 2409 | PUSHs(cat); |
| 2410 | RETURN; |
| 2411 | } |
| a6ec74c1 |
2412 | |
projects / p5sagit/p5-mst-13.2.git / blame