| 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); |
| cb65cf36 |
149 | return 0; |
| 18529408 |
150 | } |
| 151 | |
| 62f95557 |
152 | #define TYPE_IS_SHRIEKING 0x100 |
| 153 | |
| 206947d2 |
154 | /* Returns the sizeof() struct described by pat */ |
| 028d1f6d |
155 | STATIC I32 |
| 206947d2 |
156 | S_measure_struct(pTHX_ char *pat, register char *patend) |
| 157 | { |
| 158 | I32 datumtype; |
| 159 | register I32 len; |
| 160 | register I32 total = 0; |
| 161 | int commas = 0; |
| 162 | int star; /* 1 if count is *, -1 if no count given, -2 for / */ |
| 163 | #ifdef PERL_NATINT_PACK |
| 164 | int natint; /* native integer */ |
| 165 | int unatint; /* unsigned native integer */ |
| 166 | #endif |
| 167 | char buf[2]; |
| 168 | register int size; |
| 169 | |
| 170 | while ((pat = next_symbol(pat, patend)) < patend) { |
| 171 | datumtype = *pat++ & 0xFF; |
| 172 | #ifdef PERL_NATINT_PACK |
| 173 | natint = 0; |
| 174 | #endif |
| 175 | if (*pat == '!') { |
| 62f95557 |
176 | static const char *natstr = "sSiIlLxX"; |
| 206947d2 |
177 | |
| 178 | if (strchr(natstr, datumtype)) { |
| 62f95557 |
179 | if (datumtype == 'x' || datumtype == 'X') { |
| 180 | datumtype |= TYPE_IS_SHRIEKING; |
| 181 | } else { /* XXXX Should be redone similarly! */ |
| 206947d2 |
182 | #ifdef PERL_NATINT_PACK |
| 62f95557 |
183 | natint = 1; |
| 206947d2 |
184 | #endif |
| 62f95557 |
185 | } |
| 206947d2 |
186 | pat++; |
| 187 | } |
| 188 | else |
| 518eff30 |
189 | Perl_croak(aTHX_ "'!' allowed only after types %s", natstr); |
| 206947d2 |
190 | } |
| 191 | len = find_count(&pat, patend, &star); |
| 192 | if (star > 0) /* */ |
| 518eff30 |
193 | Perl_croak(aTHX_ "%s not allowed in length fields", "count *"); |
| 206947d2 |
194 | else if (star < 0) /* No explicit len */ |
| 195 | len = datumtype != '@'; |
| 196 | |
| 197 | switch(datumtype) { |
| 198 | default: |
| 518eff30 |
199 | Perl_croak(aTHX_ "Invalid type in unpack: '%c'", (int)datumtype); |
| 206947d2 |
200 | case '@': |
| 201 | case '/': |
| 202 | case 'U': /* XXXX Is it correct? */ |
| 203 | case 'w': |
| 204 | case 'u': |
| 205 | buf[0] = datumtype; |
| 206 | buf[1] = 0; |
| 518eff30 |
207 | Perl_croak(aTHX_ "%s not allowed in length fields", buf); |
| 206947d2 |
208 | case ',': /* grandfather in commas but with a warning */ |
| 209 | if (commas++ == 0 && ckWARN(WARN_UNPACK)) |
| 9014280d |
210 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
| 206947d2 |
211 | "Invalid type in unpack: '%c'", (int)datumtype); |
| 212 | /* FALL THROUGH */ |
| 213 | case '%': |
| 214 | size = 0; |
| 215 | break; |
| 216 | case '(': |
| 217 | { |
| 218 | char *beg = pat, *end; |
| 219 | |
| 220 | if (star >= 0) |
| 518eff30 |
221 | Perl_croak(aTHX_ "()-group starts with a count"); |
| 206947d2 |
222 | end = group_end(beg, patend, ')'); |
| 223 | pat = end + 1; |
| 224 | len = find_count(&pat, patend, &star); |
| 225 | if (star < 0) /* No count */ |
| 226 | len = 1; |
| 227 | else if (star > 0) /* Star */ |
| 518eff30 |
228 | Perl_croak(aTHX_ "%s not allowed in length fields", "count *"); |
| 62f95557 |
229 | /* XXXX Theoretically, we need to measure many times at different |
| 230 | positions, since the subexpression may contain |
| 231 | alignment commands, but be not of aligned length. |
| 232 | Need to detect this and croak(). */ |
| 206947d2 |
233 | size = measure_struct(beg, end); |
| 234 | break; |
| 235 | } |
| 62f95557 |
236 | case 'X' | TYPE_IS_SHRIEKING: |
| 237 | /* XXXX Is this useful? Then need to treat MEASURE_BACKWARDS. */ |
| 238 | if (!len) /* Avoid division by 0 */ |
| 239 | len = 1; |
| 240 | len = total % len; /* Assumed: the start is aligned. */ |
| 241 | /* FALL THROUGH */ |
| 206947d2 |
242 | case 'X': |
| 243 | size = -1; |
| 244 | if (total < len) |
| 518eff30 |
245 | Perl_croak(aTHX_ "X outside of string"); |
| 206947d2 |
246 | break; |
| 62f95557 |
247 | case 'x' | TYPE_IS_SHRIEKING: |
| 248 | if (!len) /* Avoid division by 0 */ |
| 249 | len = 1; |
| 250 | star = total % len; /* Assumed: the start is aligned. */ |
| 251 | if (star) /* Other portable ways? */ |
| 252 | len = len - star; |
| 253 | else |
| 254 | len = 0; |
| 255 | /* FALL THROUGH */ |
| 206947d2 |
256 | case 'x': |
| 257 | case 'A': |
| 258 | case 'Z': |
| 259 | case 'a': |
| 260 | case 'c': |
| 261 | case 'C': |
| 262 | size = 1; |
| 263 | break; |
| 264 | case 'B': |
| 265 | case 'b': |
| 266 | len = (len + 7)/8; |
| 267 | size = 1; |
| 268 | break; |
| 269 | case 'H': |
| 270 | case 'h': |
| 271 | len = (len + 1)/2; |
| 272 | size = 1; |
| 273 | break; |
| 274 | case 's': |
| 275 | #if SHORTSIZE == SIZE16 |
| 276 | size = SIZE16; |
| 277 | #else |
| 278 | size = (natint ? sizeof(short) : SIZE16); |
| 279 | #endif |
| 280 | break; |
| 281 | case 'v': |
| 282 | case 'n': |
| 283 | case 'S': |
| 284 | #if SHORTSIZE == SIZE16 |
| 285 | size = SIZE16; |
| 286 | #else |
| 287 | unatint = natint && datumtype == 'S'; |
| 288 | size = (unatint ? sizeof(unsigned short) : SIZE16); |
| 289 | #endif |
| 290 | break; |
| 291 | case 'i': |
| 292 | size = sizeof(int); |
| 293 | break; |
| 294 | case 'I': |
| 295 | size = sizeof(unsigned int); |
| 296 | break; |
| 92d41999 |
297 | case 'j': |
| 298 | size = IVSIZE; |
| 299 | break; |
| 300 | case 'J': |
| 301 | size = UVSIZE; |
| 302 | break; |
| 206947d2 |
303 | case 'l': |
| 304 | #if LONGSIZE == SIZE32 |
| 305 | size = SIZE32; |
| 306 | #else |
| 307 | size = (natint ? sizeof(long) : SIZE32); |
| 308 | #endif |
| 309 | break; |
| 310 | case 'V': |
| 311 | case 'N': |
| 312 | case 'L': |
| 313 | #if LONGSIZE == SIZE32 |
| 314 | size = SIZE32; |
| 315 | #else |
| 316 | unatint = natint && datumtype == 'L'; |
| 317 | size = (unatint ? sizeof(unsigned long) : SIZE32); |
| 318 | #endif |
| 319 | break; |
| 320 | case 'P': |
| 321 | len = 1; |
| 322 | /* FALL THROUGH */ |
| 323 | case 'p': |
| 324 | size = sizeof(char*); |
| 325 | break; |
| 326 | #ifdef HAS_QUAD |
| 327 | case 'q': |
| 328 | size = sizeof(Quad_t); |
| 329 | break; |
| 330 | case 'Q': |
| 331 | size = sizeof(Uquad_t); |
| 332 | break; |
| 333 | #endif |
| 334 | case 'f': |
| 206947d2 |
335 | size = sizeof(float); |
| 336 | break; |
| 337 | case 'd': |
| 206947d2 |
338 | size = sizeof(double); |
| 339 | break; |
| 92d41999 |
340 | case 'F': |
| 341 | size = NVSIZE; |
| 342 | break; |
| 343 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 344 | case 'D': |
| 345 | size = LONG_DOUBLESIZE; |
| 346 | break; |
| 347 | #endif |
| 206947d2 |
348 | } |
| 349 | total += len * size; |
| 350 | } |
| 351 | return total; |
| 352 | } |
| 353 | |
| 18529408 |
354 | /* Returns -1 on no count or on star */ |
| 355 | STATIC I32 |
| 356 | S_find_count(pTHX_ char **ppat, register char *patend, int *star) |
| 357 | { |
| 62f95557 |
358 | char *pat = *ppat; |
| 18529408 |
359 | I32 len; |
| 360 | |
| 361 | *star = 0; |
| 362 | if (pat >= patend) |
| 363 | len = 1; |
| 364 | else if (*pat == '*') { |
| 365 | pat++; |
| 366 | *star = 1; |
| 367 | len = -1; |
| 368 | } |
| 62f95557 |
369 | else if (isDIGIT(*pat)) { |
| 370 | len = *pat++ - '0'; |
| 18529408 |
371 | while (isDIGIT(*pat)) { |
| 372 | len = (len * 10) + (*pat++ - '0'); |
| 62f95557 |
373 | if (len < 0) /* 50% chance of catching... */ |
| 374 | Perl_croak(aTHX_ "Repeat count in pack/unpack overflows"); |
| 18529408 |
375 | } |
| 62f95557 |
376 | } |
| 377 | else if (*pat == '[') { |
| 378 | char *end = group_end(++pat, patend, ']'); |
| 379 | |
| 380 | len = 0; |
| 381 | *ppat = end + 1; |
| 382 | if (isDIGIT(*pat)) |
| 383 | return find_count(&pat, end, star); |
| 384 | return measure_struct(pat, end); |
| 18529408 |
385 | } |
| 386 | else |
| 387 | len = *star = -1; |
| 388 | *ppat = pat; |
| 389 | return len; |
| 390 | } |
| 391 | |
| 392 | STATIC char * |
| 393 | S_next_symbol(pTHX_ register char *pat, register char *patend) |
| 394 | { |
| 395 | while (pat < patend) { |
| 396 | if (isSPACE(*pat)) |
| 397 | pat++; |
| 398 | else if (*pat == '#') { |
| 399 | pat++; |
| 400 | while (pat < patend && *pat != '\n') |
| 401 | pat++; |
| 402 | if (pat < patend) |
| 403 | pat++; |
| 404 | } |
| 405 | else |
| 406 | return pat; |
| 407 | } |
| 408 | return pat; |
| 409 | } |
| 410 | |
| 18529408 |
411 | /* |
| 412 | =for apidoc unpack_str |
| 413 | |
| 414 | The engine implementing unpack() Perl function. |
| 415 | |
| 416 | =cut */ |
| 417 | |
| 418 | I32 |
| 419 | Perl_unpack_str(pTHX_ char *pat, register char *patend, register char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags) |
| a6ec74c1 |
420 | { |
| 421 | dSP; |
| a6ec74c1 |
422 | I32 datumtype; |
| 423 | register I32 len; |
| 424 | register I32 bits = 0; |
| 425 | register char *str; |
| 18529408 |
426 | SV *sv; |
| 427 | I32 start_sp_offset = SP - PL_stack_base; |
| a6ec74c1 |
428 | |
| 429 | /* These must not be in registers: */ |
| 430 | short ashort; |
| 431 | int aint; |
| 432 | long along; |
| 433 | #ifdef HAS_QUAD |
| 434 | Quad_t aquad; |
| 435 | #endif |
| 436 | U16 aushort; |
| 437 | unsigned int auint; |
| 438 | U32 aulong; |
| 439 | #ifdef HAS_QUAD |
| 440 | Uquad_t auquad; |
| 441 | #endif |
| 442 | char *aptr; |
| 443 | float afloat; |
| 444 | double adouble; |
| 445 | I32 checksum = 0; |
| 92d41999 |
446 | UV cuv = 0; |
| a6ec74c1 |
447 | NV cdouble = 0.0; |
| 92d41999 |
448 | const int bits_in_uv = 8 * sizeof(cuv); |
| a6ec74c1 |
449 | int commas = 0; |
| 18529408 |
450 | int star; /* 1 if count is *, -1 if no count given, -2 for / */ |
| a6ec74c1 |
451 | #ifdef PERL_NATINT_PACK |
| 452 | int natint; /* native integer */ |
| 453 | int unatint; /* unsigned native integer */ |
| 454 | #endif |
| 92d41999 |
455 | IV aiv; |
| 456 | UV auv; |
| 457 | NV anv; |
| 458 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 459 | long double aldouble; |
| 460 | #endif |
| 18529408 |
461 | bool do_utf8 = flags & UNPACK_DO_UTF8; |
| a6ec74c1 |
462 | |
| 18529408 |
463 | while ((pat = next_symbol(pat, patend)) < patend) { |
| a6ec74c1 |
464 | datumtype = *pat++ & 0xFF; |
| 465 | #ifdef PERL_NATINT_PACK |
| 466 | natint = 0; |
| 467 | #endif |
| 206947d2 |
468 | /* do first one only unless in list context |
| 469 | / is implemented by unpacking the count, then poping it from the |
| 470 | stack, so must check that we're not in the middle of a / */ |
| 471 | if ( (flags & UNPACK_ONLY_ONE) |
| 472 | && (SP - PL_stack_base == start_sp_offset + 1) |
| 473 | && (datumtype != '/') ) |
| 474 | break; |
| a6ec74c1 |
475 | if (*pat == '!') { |
| 62f95557 |
476 | static const char natstr[] = "sSiIlLxX"; |
| a6ec74c1 |
477 | |
| 478 | if (strchr(natstr, datumtype)) { |
| 62f95557 |
479 | if (datumtype == 'x' || datumtype == 'X') { |
| 480 | datumtype |= TYPE_IS_SHRIEKING; |
| 481 | } else { /* XXXX Should be redone similarly! */ |
| a6ec74c1 |
482 | #ifdef PERL_NATINT_PACK |
| 62f95557 |
483 | natint = 1; |
| a6ec74c1 |
484 | #endif |
| 62f95557 |
485 | } |
| a6ec74c1 |
486 | pat++; |
| 487 | } |
| 488 | else |
| 518eff30 |
489 | Perl_croak(aTHX_ "'!' allowed only after types %s", natstr); |
| a6ec74c1 |
490 | } |
| 18529408 |
491 | len = find_count(&pat, patend, &star); |
| 492 | if (star > 0) |
| 493 | len = strend - strbeg; /* long enough */ |
| 494 | else if (star < 0) /* No explicit len */ |
| 206947d2 |
495 | len = datumtype != '@'; |
| 18529408 |
496 | |
| a6ec74c1 |
497 | redo_switch: |
| 498 | switch(datumtype) { |
| 499 | default: |
| 518eff30 |
500 | Perl_croak(aTHX_ "Invalid type in unpack: '%c'", (int)datumtype); |
| a6ec74c1 |
501 | case ',': /* grandfather in commas but with a warning */ |
| 502 | if (commas++ == 0 && ckWARN(WARN_UNPACK)) |
| 9014280d |
503 | Perl_warner(aTHX_ packWARN(WARN_UNPACK), |
| a6ec74c1 |
504 | "Invalid type in unpack: '%c'", (int)datumtype); |
| 505 | break; |
| 506 | case '%': |
| 18529408 |
507 | if (len == 1 && pat[-1] != '1' && pat[-1] != ']') |
| 508 | len = 16; /* len is not specified */ |
| a6ec74c1 |
509 | checksum = len; |
| 92d41999 |
510 | cuv = 0; |
| a6ec74c1 |
511 | cdouble = 0; |
| 18529408 |
512 | continue; |
| a6ec74c1 |
513 | break; |
| 18529408 |
514 | case '(': |
| 515 | { |
| 516 | char *beg = pat; |
| 517 | char *ss = s; /* Move from register */ |
| 518 | |
| 519 | if (star >= 0) |
| 518eff30 |
520 | Perl_croak(aTHX_ "()-group starts with a count"); |
| 18529408 |
521 | aptr = group_end(beg, patend, ')'); |
| 522 | pat = aptr + 1; |
| 523 | if (star != -2) { |
| 524 | len = find_count(&pat, patend, &star); |
| 525 | if (star < 0) /* No count */ |
| 526 | len = 1; |
| 527 | else if (star > 0) /* Star */ |
| 528 | len = strend - strbeg; /* long enough? */ |
| 529 | } |
| 530 | PUTBACK; |
| 531 | while (len--) { |
| 532 | unpack_str(beg, aptr, ss, strbeg, strend, &ss, |
| 533 | ocnt + SP - PL_stack_base - start_sp_offset, flags); |
| 534 | if (star > 0 && ss == strend) |
| 535 | break; /* No way to continue */ |
| 536 | } |
| 537 | SPAGAIN; |
| 538 | s = ss; |
| 539 | break; |
| 540 | } |
| a6ec74c1 |
541 | case '@': |
| 542 | if (len > strend - strbeg) |
| 518eff30 |
543 | Perl_croak(aTHX_ "@ outside of string"); |
| a6ec74c1 |
544 | s = strbeg + len; |
| 545 | break; |
| 62f95557 |
546 | case 'X' | TYPE_IS_SHRIEKING: |
| 547 | if (!len) /* Avoid division by 0 */ |
| 548 | len = 1; |
| 549 | len = (s - strbeg) % len; |
| 550 | /* FALL THROUGH */ |
| a6ec74c1 |
551 | case 'X': |
| 552 | if (len > s - strbeg) |
| 518eff30 |
553 | Perl_croak(aTHX_ "X outside of string"); |
| a6ec74c1 |
554 | s -= len; |
| 555 | break; |
| 62f95557 |
556 | case 'x' | TYPE_IS_SHRIEKING: |
| 557 | if (!len) /* Avoid division by 0 */ |
| 558 | len = 1; |
| 559 | aint = (s - strbeg) % len; |
| 560 | if (aint) /* Other portable ways? */ |
| 561 | len = len - aint; |
| 562 | else |
| 563 | len = 0; |
| 564 | /* FALL THROUGH */ |
| a6ec74c1 |
565 | case 'x': |
| 566 | if (len > strend - s) |
| 518eff30 |
567 | Perl_croak(aTHX_ "x outside of string"); |
| a6ec74c1 |
568 | s += len; |
| 569 | break; |
| 570 | case '/': |
| 18529408 |
571 | if (ocnt + SP - PL_stack_base - start_sp_offset <= 0) |
| 518eff30 |
572 | Perl_croak(aTHX_ "/ must follow a numeric type"); |
| a6ec74c1 |
573 | datumtype = *pat++; |
| 574 | if (*pat == '*') |
| 575 | pat++; /* ignore '*' for compatibility with pack */ |
| 576 | if (isDIGIT(*pat)) |
| 518eff30 |
577 | Perl_croak(aTHX_ "/ cannot take a count" ); |
| a6ec74c1 |
578 | len = POPi; |
| 18529408 |
579 | star = -2; |
| a6ec74c1 |
580 | goto redo_switch; |
| 581 | case 'A': |
| 582 | case 'Z': |
| 583 | case 'a': |
| 584 | if (len > strend - s) |
| 585 | len = strend - s; |
| 586 | if (checksum) |
| 587 | goto uchar_checksum; |
| 588 | sv = NEWSV(35, len); |
| 589 | sv_setpvn(sv, s, len); |
| a6ec74c1 |
590 | if (datumtype == 'A' || datumtype == 'Z') { |
| 591 | aptr = s; /* borrow register */ |
| 592 | if (datumtype == 'Z') { /* 'Z' strips stuff after first null */ |
| 593 | s = SvPVX(sv); |
| 594 | while (*s) |
| 595 | s++; |
| 18529408 |
596 | if (star > 0) /* exact for 'Z*' */ |
| d50dd4e4 |
597 | len = s - SvPVX(sv) + 1; |
| a6ec74c1 |
598 | } |
| 599 | else { /* 'A' strips both nulls and spaces */ |
| 600 | s = SvPVX(sv) + len - 1; |
| 601 | while (s >= SvPVX(sv) && (!*s || isSPACE(*s))) |
| 602 | s--; |
| 603 | *++s = '\0'; |
| 604 | } |
| 605 | SvCUR_set(sv, s - SvPVX(sv)); |
| 606 | s = aptr; /* unborrow register */ |
| 607 | } |
| d50dd4e4 |
608 | s += len; |
| a6ec74c1 |
609 | XPUSHs(sv_2mortal(sv)); |
| 610 | break; |
| 611 | case 'B': |
| 612 | case 'b': |
| 18529408 |
613 | if (star > 0 || len > (strend - s) * 8) |
| a6ec74c1 |
614 | len = (strend - s) * 8; |
| 615 | if (checksum) { |
| 616 | if (!PL_bitcount) { |
| 617 | Newz(601, PL_bitcount, 256, char); |
| 618 | for (bits = 1; bits < 256; bits++) { |
| 619 | if (bits & 1) PL_bitcount[bits]++; |
| 620 | if (bits & 2) PL_bitcount[bits]++; |
| 621 | if (bits & 4) PL_bitcount[bits]++; |
| 622 | if (bits & 8) PL_bitcount[bits]++; |
| 623 | if (bits & 16) PL_bitcount[bits]++; |
| 624 | if (bits & 32) PL_bitcount[bits]++; |
| 625 | if (bits & 64) PL_bitcount[bits]++; |
| 626 | if (bits & 128) PL_bitcount[bits]++; |
| 627 | } |
| 628 | } |
| 629 | while (len >= 8) { |
| 92d41999 |
630 | cuv += PL_bitcount[*(unsigned char*)s++]; |
| a6ec74c1 |
631 | len -= 8; |
| 632 | } |
| 633 | if (len) { |
| 634 | bits = *s; |
| 635 | if (datumtype == 'b') { |
| 636 | while (len-- > 0) { |
| 92d41999 |
637 | if (bits & 1) cuv++; |
| a6ec74c1 |
638 | bits >>= 1; |
| 639 | } |
| 640 | } |
| 641 | else { |
| 642 | while (len-- > 0) { |
| 92d41999 |
643 | if (bits & 128) cuv++; |
| a6ec74c1 |
644 | bits <<= 1; |
| 645 | } |
| 646 | } |
| 647 | } |
| 648 | break; |
| 649 | } |
| 650 | sv = NEWSV(35, len + 1); |
| 651 | SvCUR_set(sv, len); |
| 652 | SvPOK_on(sv); |
| 653 | str = SvPVX(sv); |
| 654 | if (datumtype == 'b') { |
| 655 | aint = len; |
| 656 | for (len = 0; len < aint; len++) { |
| 657 | if (len & 7) /*SUPPRESS 595*/ |
| 658 | bits >>= 1; |
| 659 | else |
| 660 | bits = *s++; |
| 661 | *str++ = '0' + (bits & 1); |
| 662 | } |
| 663 | } |
| 664 | else { |
| 665 | aint = len; |
| 666 | for (len = 0; len < aint; len++) { |
| 667 | if (len & 7) |
| 668 | bits <<= 1; |
| 669 | else |
| 670 | bits = *s++; |
| 671 | *str++ = '0' + ((bits & 128) != 0); |
| 672 | } |
| 673 | } |
| 674 | *str = '\0'; |
| 675 | XPUSHs(sv_2mortal(sv)); |
| 676 | break; |
| 677 | case 'H': |
| 678 | case 'h': |
| 18529408 |
679 | if (star > 0 || len > (strend - s) * 2) |
| a6ec74c1 |
680 | len = (strend - s) * 2; |
| 681 | sv = NEWSV(35, len + 1); |
| 682 | SvCUR_set(sv, len); |
| 683 | SvPOK_on(sv); |
| 684 | str = SvPVX(sv); |
| 685 | if (datumtype == 'h') { |
| 686 | aint = len; |
| 687 | for (len = 0; len < aint; len++) { |
| 688 | if (len & 1) |
| 689 | bits >>= 4; |
| 690 | else |
| 691 | bits = *s++; |
| 692 | *str++ = PL_hexdigit[bits & 15]; |
| 693 | } |
| 694 | } |
| 695 | else { |
| 696 | aint = len; |
| 697 | for (len = 0; len < aint; len++) { |
| 698 | if (len & 1) |
| 699 | bits <<= 4; |
| 700 | else |
| 701 | bits = *s++; |
| 702 | *str++ = PL_hexdigit[(bits >> 4) & 15]; |
| 703 | } |
| 704 | } |
| 705 | *str = '\0'; |
| 706 | XPUSHs(sv_2mortal(sv)); |
| 707 | break; |
| 708 | case 'c': |
| 709 | if (len > strend - s) |
| 710 | len = strend - s; |
| 711 | if (checksum) { |
| 712 | while (len-- > 0) { |
| 713 | aint = *s++; |
| 714 | if (aint >= 128) /* fake up signed chars */ |
| 715 | aint -= 256; |
| fa8ec7c1 |
716 | if (checksum > bits_in_uv) |
| 717 | cdouble += (NV)aint; |
| 718 | else |
| 92d41999 |
719 | cuv += aint; |
| a6ec74c1 |
720 | } |
| 721 | } |
| 722 | else { |
| 723 | EXTEND(SP, len); |
| 724 | EXTEND_MORTAL(len); |
| 725 | while (len-- > 0) { |
| 726 | aint = *s++; |
| 727 | if (aint >= 128) /* fake up signed chars */ |
| 728 | aint -= 256; |
| 729 | sv = NEWSV(36, 0); |
| 730 | sv_setiv(sv, (IV)aint); |
| 731 | PUSHs(sv_2mortal(sv)); |
| 732 | } |
| 733 | } |
| 734 | break; |
| 735 | case 'C': |
| 35bcd338 |
736 | unpack_C: /* unpack U will jump here if not UTF-8 */ |
| 737 | if (len == 0) { |
| 738 | do_utf8 = FALSE; |
| 739 | break; |
| 740 | } |
| a6ec74c1 |
741 | if (len > strend - s) |
| 742 | len = strend - s; |
| 743 | if (checksum) { |
| 744 | uchar_checksum: |
| 745 | while (len-- > 0) { |
| 746 | auint = *s++ & 255; |
| 92d41999 |
747 | cuv += auint; |
| a6ec74c1 |
748 | } |
| 749 | } |
| 750 | else { |
| 751 | EXTEND(SP, len); |
| 752 | EXTEND_MORTAL(len); |
| 753 | while (len-- > 0) { |
| 754 | auint = *s++ & 255; |
| 755 | sv = NEWSV(37, 0); |
| 756 | sv_setiv(sv, (IV)auint); |
| 757 | PUSHs(sv_2mortal(sv)); |
| 758 | } |
| 759 | } |
| 760 | break; |
| 761 | case 'U': |
| 35bcd338 |
762 | if (len == 0) { |
| 763 | do_utf8 = TRUE; |
| 764 | break; |
| 765 | } |
| 766 | if (!do_utf8) |
| 767 | goto unpack_C; |
| a6ec74c1 |
768 | if (len > strend - s) |
| 769 | len = strend - s; |
| 770 | if (checksum) { |
| 771 | while (len-- > 0 && s < strend) { |
| 772 | STRLEN alen; |
| e87322b2 |
773 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, 0)); |
| a6ec74c1 |
774 | along = alen; |
| 775 | s += along; |
| fa8ec7c1 |
776 | if (checksum > bits_in_uv) |
| a6ec74c1 |
777 | cdouble += (NV)auint; |
| 778 | else |
| 92d41999 |
779 | cuv += auint; |
| a6ec74c1 |
780 | } |
| 781 | } |
| 782 | else { |
| 783 | EXTEND(SP, len); |
| 784 | EXTEND_MORTAL(len); |
| 785 | while (len-- > 0 && s < strend) { |
| 786 | STRLEN alen; |
| e87322b2 |
787 | auint = NATIVE_TO_UNI(utf8n_to_uvchr((U8*)s, strend - s, &alen, 0)); |
| a6ec74c1 |
788 | along = alen; |
| 789 | s += along; |
| 790 | sv = NEWSV(37, 0); |
| 791 | sv_setuv(sv, (UV)auint); |
| 792 | PUSHs(sv_2mortal(sv)); |
| 793 | } |
| 794 | } |
| 795 | break; |
| 796 | case 's': |
| 797 | #if SHORTSIZE == SIZE16 |
| 798 | along = (strend - s) / SIZE16; |
| 799 | #else |
| 800 | along = (strend - s) / (natint ? sizeof(short) : SIZE16); |
| 801 | #endif |
| 802 | if (len > along) |
| 803 | len = along; |
| 804 | if (checksum) { |
| 805 | #if SHORTSIZE != SIZE16 |
| 806 | if (natint) { |
| 807 | short ashort; |
| 808 | while (len-- > 0) { |
| 809 | COPYNN(s, &ashort, sizeof(short)); |
| 810 | s += sizeof(short); |
| fa8ec7c1 |
811 | if (checksum > bits_in_uv) |
| 812 | cdouble += (NV)ashort; |
| 813 | else |
| 92d41999 |
814 | cuv += ashort; |
| a6ec74c1 |
815 | |
| 816 | } |
| 817 | } |
| 818 | else |
| 819 | #endif |
| 820 | { |
| 821 | while (len-- > 0) { |
| 822 | COPY16(s, &ashort); |
| 823 | #if SHORTSIZE > SIZE16 |
| 824 | if (ashort > 32767) |
| 825 | ashort -= 65536; |
| 826 | #endif |
| 827 | s += SIZE16; |
| fa8ec7c1 |
828 | if (checksum > bits_in_uv) |
| 829 | cdouble += (NV)ashort; |
| 830 | else |
| 92d41999 |
831 | cuv += ashort; |
| a6ec74c1 |
832 | } |
| 833 | } |
| 834 | } |
| 835 | else { |
| 836 | EXTEND(SP, len); |
| 837 | EXTEND_MORTAL(len); |
| 838 | #if SHORTSIZE != SIZE16 |
| 839 | if (natint) { |
| 840 | short ashort; |
| 841 | while (len-- > 0) { |
| 842 | COPYNN(s, &ashort, sizeof(short)); |
| 843 | s += sizeof(short); |
| 844 | sv = NEWSV(38, 0); |
| 845 | sv_setiv(sv, (IV)ashort); |
| 846 | PUSHs(sv_2mortal(sv)); |
| 847 | } |
| 848 | } |
| 849 | else |
| 850 | #endif |
| 851 | { |
| 852 | while (len-- > 0) { |
| 853 | COPY16(s, &ashort); |
| 854 | #if SHORTSIZE > SIZE16 |
| 855 | if (ashort > 32767) |
| 856 | ashort -= 65536; |
| 857 | #endif |
| 858 | s += SIZE16; |
| 859 | sv = NEWSV(38, 0); |
| 860 | sv_setiv(sv, (IV)ashort); |
| 861 | PUSHs(sv_2mortal(sv)); |
| 862 | } |
| 863 | } |
| 864 | } |
| 865 | break; |
| 866 | case 'v': |
| 867 | case 'n': |
| 868 | case 'S': |
| 869 | #if SHORTSIZE == SIZE16 |
| 870 | along = (strend - s) / SIZE16; |
| 871 | #else |
| 872 | unatint = natint && datumtype == 'S'; |
| 873 | along = (strend - s) / (unatint ? sizeof(unsigned short) : SIZE16); |
| 874 | #endif |
| 875 | if (len > along) |
| 876 | len = along; |
| 877 | if (checksum) { |
| 878 | #if SHORTSIZE != SIZE16 |
| 879 | if (unatint) { |
| 880 | unsigned short aushort; |
| 881 | while (len-- > 0) { |
| 882 | COPYNN(s, &aushort, sizeof(unsigned short)); |
| 883 | s += sizeof(unsigned short); |
| fa8ec7c1 |
884 | if (checksum > bits_in_uv) |
| 885 | cdouble += (NV)aushort; |
| 886 | else |
| 92d41999 |
887 | cuv += aushort; |
| a6ec74c1 |
888 | } |
| 889 | } |
| 890 | else |
| 891 | #endif |
| 892 | { |
| 893 | while (len-- > 0) { |
| 894 | COPY16(s, &aushort); |
| 895 | s += SIZE16; |
| 896 | #ifdef HAS_NTOHS |
| 897 | if (datumtype == 'n') |
| 898 | aushort = PerlSock_ntohs(aushort); |
| 899 | #endif |
| 900 | #ifdef HAS_VTOHS |
| 901 | if (datumtype == 'v') |
| 902 | aushort = vtohs(aushort); |
| 903 | #endif |
| fa8ec7c1 |
904 | if (checksum > bits_in_uv) |
| 905 | cdouble += (NV)aushort; |
| 906 | else |
| 92d41999 |
907 | cuv += aushort; |
| a6ec74c1 |
908 | } |
| 909 | } |
| 910 | } |
| 911 | else { |
| 912 | EXTEND(SP, len); |
| 913 | EXTEND_MORTAL(len); |
| 914 | #if SHORTSIZE != SIZE16 |
| 915 | if (unatint) { |
| 916 | unsigned short aushort; |
| 917 | while (len-- > 0) { |
| 918 | COPYNN(s, &aushort, sizeof(unsigned short)); |
| 919 | s += sizeof(unsigned short); |
| 920 | sv = NEWSV(39, 0); |
| 921 | sv_setiv(sv, (UV)aushort); |
| 922 | PUSHs(sv_2mortal(sv)); |
| 923 | } |
| 924 | } |
| 925 | else |
| 926 | #endif |
| 927 | { |
| 928 | while (len-- > 0) { |
| 929 | COPY16(s, &aushort); |
| 930 | s += SIZE16; |
| 931 | sv = NEWSV(39, 0); |
| 932 | #ifdef HAS_NTOHS |
| 933 | if (datumtype == 'n') |
| 934 | aushort = PerlSock_ntohs(aushort); |
| 935 | #endif |
| 936 | #ifdef HAS_VTOHS |
| 937 | if (datumtype == 'v') |
| 938 | aushort = vtohs(aushort); |
| 939 | #endif |
| 940 | sv_setiv(sv, (UV)aushort); |
| 941 | PUSHs(sv_2mortal(sv)); |
| 942 | } |
| 943 | } |
| 944 | } |
| 945 | break; |
| 946 | case 'i': |
| 947 | along = (strend - s) / sizeof(int); |
| 948 | if (len > along) |
| 949 | len = along; |
| 950 | if (checksum) { |
| 951 | while (len-- > 0) { |
| 952 | Copy(s, &aint, 1, int); |
| 953 | s += sizeof(int); |
| fa8ec7c1 |
954 | if (checksum > bits_in_uv) |
| a6ec74c1 |
955 | cdouble += (NV)aint; |
| 956 | else |
| 92d41999 |
957 | cuv += aint; |
| a6ec74c1 |
958 | } |
| 959 | } |
| 960 | else { |
| 961 | EXTEND(SP, len); |
| 962 | EXTEND_MORTAL(len); |
| 963 | while (len-- > 0) { |
| 964 | Copy(s, &aint, 1, int); |
| 965 | s += sizeof(int); |
| 966 | sv = NEWSV(40, 0); |
| 967 | #ifdef __osf__ |
| 968 | /* Without the dummy below unpack("i", pack("i",-1)) |
| 969 | * return 0xFFffFFff instead of -1 for Digital Unix V4.0 |
| 970 | * cc with optimization turned on. |
| 971 | * |
| 972 | * The bug was detected in |
| 973 | * DEC C V5.8-009 on Digital UNIX V4.0 (Rev. 1091) (V4.0E) |
| 974 | * with optimization (-O4) turned on. |
| 975 | * DEC C V5.2-040 on Digital UNIX V4.0 (Rev. 564) (V4.0B) |
| 976 | * does not have this problem even with -O4. |
| 977 | * |
| 978 | * This bug was reported as DECC_BUGS 1431 |
| 979 | * and tracked internally as GEM_BUGS 7775. |
| 980 | * |
| 981 | * The bug is fixed in |
| 982 | * Tru64 UNIX V5.0: Compaq C V6.1-006 or later |
| 983 | * UNIX V4.0F support: DEC C V5.9-006 or later |
| 984 | * UNIX V4.0E support: DEC C V5.8-011 or later |
| 985 | * and also in DTK. |
| 986 | * |
| 987 | * See also few lines later for the same bug. |
| 988 | */ |
| 989 | (aint) ? |
| 990 | sv_setiv(sv, (IV)aint) : |
| 991 | #endif |
| 992 | sv_setiv(sv, (IV)aint); |
| 993 | PUSHs(sv_2mortal(sv)); |
| 994 | } |
| 995 | } |
| 996 | break; |
| 997 | case 'I': |
| 998 | along = (strend - s) / sizeof(unsigned int); |
| 999 | if (len > along) |
| 1000 | len = along; |
| 1001 | if (checksum) { |
| 1002 | while (len-- > 0) { |
| 1003 | Copy(s, &auint, 1, unsigned int); |
| 1004 | s += sizeof(unsigned int); |
| fa8ec7c1 |
1005 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1006 | cdouble += (NV)auint; |
| 1007 | else |
| 92d41999 |
1008 | cuv += auint; |
| a6ec74c1 |
1009 | } |
| 1010 | } |
| 1011 | else { |
| 1012 | EXTEND(SP, len); |
| 1013 | EXTEND_MORTAL(len); |
| 1014 | while (len-- > 0) { |
| 1015 | Copy(s, &auint, 1, unsigned int); |
| 1016 | s += sizeof(unsigned int); |
| 1017 | sv = NEWSV(41, 0); |
| 1018 | #ifdef __osf__ |
| 1019 | /* Without the dummy below unpack("I", pack("I",0xFFFFFFFF)) |
| 1020 | * returns 1.84467440737096e+19 instead of 0xFFFFFFFF. |
| 1021 | * See details few lines earlier. */ |
| 1022 | (auint) ? |
| 1023 | sv_setuv(sv, (UV)auint) : |
| 1024 | #endif |
| 1025 | sv_setuv(sv, (UV)auint); |
| 1026 | PUSHs(sv_2mortal(sv)); |
| 1027 | } |
| 1028 | } |
| 1029 | break; |
| 92d41999 |
1030 | case 'j': |
| 1031 | along = (strend - s) / IVSIZE; |
| 1032 | if (len > along) |
| 1033 | len = along; |
| 1034 | if (checksum) { |
| 1035 | while (len-- > 0) { |
| 1036 | Copy(s, &aiv, 1, IV); |
| 1037 | s += IVSIZE; |
| 1038 | if (checksum > bits_in_uv) |
| 1039 | cdouble += (NV)aiv; |
| 1040 | else |
| 1041 | cuv += aiv; |
| 1042 | } |
| 1043 | } |
| 1044 | else { |
| 1045 | EXTEND(SP, len); |
| 1046 | EXTEND_MORTAL(len); |
| 1047 | while (len-- > 0) { |
| 1048 | Copy(s, &aiv, 1, IV); |
| 1049 | s += IVSIZE; |
| 1050 | sv = NEWSV(40, 0); |
| 1051 | sv_setiv(sv, aiv); |
| 1052 | PUSHs(sv_2mortal(sv)); |
| 1053 | } |
| 1054 | } |
| 1055 | break; |
| 1056 | case 'J': |
| 1057 | along = (strend - s) / UVSIZE; |
| 1058 | if (len > along) |
| 1059 | len = along; |
| 1060 | if (checksum) { |
| 1061 | while (len-- > 0) { |
| 1062 | Copy(s, &auv, 1, UV); |
| 1063 | s += UVSIZE; |
| 1064 | if (checksum > bits_in_uv) |
| 1065 | cdouble += (NV)auv; |
| 1066 | else |
| 1067 | cuv += auv; |
| 1068 | } |
| 1069 | } |
| 1070 | else { |
| 1071 | EXTEND(SP, len); |
| 1072 | EXTEND_MORTAL(len); |
| 1073 | while (len-- > 0) { |
| 1074 | Copy(s, &auv, 1, UV); |
| 1075 | s += UVSIZE; |
| 1076 | sv = NEWSV(41, 0); |
| 1077 | sv_setuv(sv, auv); |
| 1078 | PUSHs(sv_2mortal(sv)); |
| 1079 | } |
| 1080 | } |
| 1081 | break; |
| a6ec74c1 |
1082 | case 'l': |
| 1083 | #if LONGSIZE == SIZE32 |
| 1084 | along = (strend - s) / SIZE32; |
| 1085 | #else |
| 1086 | along = (strend - s) / (natint ? sizeof(long) : SIZE32); |
| 1087 | #endif |
| 1088 | if (len > along) |
| 1089 | len = along; |
| 1090 | if (checksum) { |
| 1091 | #if LONGSIZE != SIZE32 |
| 1092 | if (natint) { |
| 1093 | while (len-- > 0) { |
| 1094 | COPYNN(s, &along, sizeof(long)); |
| 1095 | s += sizeof(long); |
| fa8ec7c1 |
1096 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1097 | cdouble += (NV)along; |
| 1098 | else |
| 92d41999 |
1099 | cuv += along; |
| a6ec74c1 |
1100 | } |
| 1101 | } |
| 1102 | else |
| 1103 | #endif |
| 1104 | { |
| 1105 | while (len-- > 0) { |
| 1106 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
| 1107 | I32 along; |
| 1108 | #endif |
| 1109 | COPY32(s, &along); |
| 1110 | #if LONGSIZE > SIZE32 |
| 1111 | if (along > 2147483647) |
| 1112 | along -= 4294967296; |
| 1113 | #endif |
| 1114 | s += SIZE32; |
| fa8ec7c1 |
1115 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1116 | cdouble += (NV)along; |
| 1117 | else |
| 92d41999 |
1118 | cuv += along; |
| a6ec74c1 |
1119 | } |
| 1120 | } |
| 1121 | } |
| 1122 | else { |
| 1123 | EXTEND(SP, len); |
| 1124 | EXTEND_MORTAL(len); |
| 1125 | #if LONGSIZE != SIZE32 |
| 1126 | if (natint) { |
| 1127 | while (len-- > 0) { |
| 1128 | COPYNN(s, &along, sizeof(long)); |
| 1129 | s += sizeof(long); |
| 1130 | sv = NEWSV(42, 0); |
| 1131 | sv_setiv(sv, (IV)along); |
| 1132 | PUSHs(sv_2mortal(sv)); |
| 1133 | } |
| 1134 | } |
| 1135 | else |
| 1136 | #endif |
| 1137 | { |
| 1138 | while (len-- > 0) { |
| 1139 | #if LONGSIZE > SIZE32 && INTSIZE == SIZE32 |
| 1140 | I32 along; |
| 1141 | #endif |
| 1142 | COPY32(s, &along); |
| 1143 | #if LONGSIZE > SIZE32 |
| 1144 | if (along > 2147483647) |
| 1145 | along -= 4294967296; |
| 1146 | #endif |
| 1147 | s += SIZE32; |
| 1148 | sv = NEWSV(42, 0); |
| 1149 | sv_setiv(sv, (IV)along); |
| 1150 | PUSHs(sv_2mortal(sv)); |
| 1151 | } |
| 1152 | } |
| 1153 | } |
| 1154 | break; |
| 1155 | case 'V': |
| 1156 | case 'N': |
| 1157 | case 'L': |
| 1158 | #if LONGSIZE == SIZE32 |
| 1159 | along = (strend - s) / SIZE32; |
| 1160 | #else |
| 1161 | unatint = natint && datumtype == 'L'; |
| 1162 | along = (strend - s) / (unatint ? sizeof(unsigned long) : SIZE32); |
| 1163 | #endif |
| 1164 | if (len > along) |
| 1165 | len = along; |
| 1166 | if (checksum) { |
| 1167 | #if LONGSIZE != SIZE32 |
| 1168 | if (unatint) { |
| 1169 | unsigned long aulong; |
| 1170 | while (len-- > 0) { |
| 1171 | COPYNN(s, &aulong, sizeof(unsigned long)); |
| 1172 | s += sizeof(unsigned long); |
| fa8ec7c1 |
1173 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1174 | cdouble += (NV)aulong; |
| 1175 | else |
| 92d41999 |
1176 | cuv += aulong; |
| a6ec74c1 |
1177 | } |
| 1178 | } |
| 1179 | else |
| 1180 | #endif |
| 1181 | { |
| 1182 | while (len-- > 0) { |
| 1183 | COPY32(s, &aulong); |
| 1184 | s += SIZE32; |
| 1185 | #ifdef HAS_NTOHL |
| 1186 | if (datumtype == 'N') |
| 1187 | aulong = PerlSock_ntohl(aulong); |
| 1188 | #endif |
| 1189 | #ifdef HAS_VTOHL |
| 1190 | if (datumtype == 'V') |
| 1191 | aulong = vtohl(aulong); |
| 1192 | #endif |
| fa8ec7c1 |
1193 | if (checksum > bits_in_uv) |
| a6ec74c1 |
1194 | cdouble += (NV)aulong; |
| 1195 | else |
| 92d41999 |
1196 | cuv += aulong; |
| a6ec74c1 |
1197 | } |
| 1198 | } |
| 1199 | } |
| 1200 | else { |
| 1201 | EXTEND(SP, len); |
| 1202 | EXTEND_MORTAL(len); |
| 1203 | #if LONGSIZE != SIZE32 |
| 1204 | if (unatint) { |
| 1205 | unsigned long aulong; |
| 1206 | while (len-- > 0) { |
| 1207 | COPYNN(s, &aulong, sizeof(unsigned long)); |
| 1208 | s += sizeof(unsigned long); |
| 1209 | sv = NEWSV(43, 0); |
| 1210 | sv_setuv(sv, (UV)aulong); |
| 1211 | PUSHs(sv_2mortal(sv)); |
| 1212 | } |
| 1213 | } |
| 1214 | else |
| 1215 | #endif |
| 1216 | { |
| 1217 | while (len-- > 0) { |
| 1218 | COPY32(s, &aulong); |
| 1219 | s += SIZE32; |
| 1220 | #ifdef HAS_NTOHL |
| 1221 | if (datumtype == 'N') |
| 1222 | aulong = PerlSock_ntohl(aulong); |
| 1223 | #endif |
| 1224 | #ifdef HAS_VTOHL |
| 1225 | if (datumtype == 'V') |
| 1226 | aulong = vtohl(aulong); |
| 1227 | #endif |
| 1228 | sv = NEWSV(43, 0); |
| 1229 | sv_setuv(sv, (UV)aulong); |
| 1230 | PUSHs(sv_2mortal(sv)); |
| 1231 | } |
| 1232 | } |
| 1233 | } |
| 1234 | break; |
| 1235 | case 'p': |
| 1236 | along = (strend - s) / sizeof(char*); |
| 1237 | if (len > along) |
| 1238 | len = along; |
| 1239 | EXTEND(SP, len); |
| 1240 | EXTEND_MORTAL(len); |
| 1241 | while (len-- > 0) { |
| 1242 | if (sizeof(char*) > strend - s) |
| 1243 | break; |
| 1244 | else { |
| 1245 | Copy(s, &aptr, 1, char*); |
| 1246 | s += sizeof(char*); |
| 1247 | } |
| 1248 | sv = NEWSV(44, 0); |
| 1249 | if (aptr) |
| 1250 | sv_setpv(sv, aptr); |
| 1251 | PUSHs(sv_2mortal(sv)); |
| 1252 | } |
| 1253 | break; |
| 1254 | case 'w': |
| 1255 | EXTEND(SP, len); |
| 1256 | EXTEND_MORTAL(len); |
| 1257 | { |
| 1258 | UV auv = 0; |
| 1259 | U32 bytes = 0; |
| 1260 | |
| 1261 | while ((len > 0) && (s < strend)) { |
| 1262 | auv = (auv << 7) | (*s & 0x7f); |
| 1263 | /* UTF8_IS_XXXXX not right here - using constant 0x80 */ |
| 1264 | if ((U8)(*s++) < 0x80) { |
| 1265 | bytes = 0; |
| 1266 | sv = NEWSV(40, 0); |
| 1267 | sv_setuv(sv, auv); |
| 1268 | PUSHs(sv_2mortal(sv)); |
| 1269 | len--; |
| 1270 | auv = 0; |
| 1271 | } |
| 1272 | else if (++bytes >= sizeof(UV)) { /* promote to string */ |
| 1273 | char *t; |
| 1274 | STRLEN n_a; |
| 1275 | |
| 1276 | sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv); |
| 1277 | while (s < strend) { |
| 1278 | sv = mul128(sv, *s & 0x7f); |
| 1279 | if (!(*s++ & 0x80)) { |
| 1280 | bytes = 0; |
| 1281 | break; |
| 1282 | } |
| 1283 | } |
| 1284 | t = SvPV(sv, n_a); |
| 1285 | while (*t == '0') |
| 1286 | t++; |
| 1287 | sv_chop(sv, t); |
| 1288 | PUSHs(sv_2mortal(sv)); |
| 1289 | len--; |
| 1290 | auv = 0; |
| 1291 | } |
| 1292 | } |
| 1293 | if ((s >= strend) && bytes) |
| 518eff30 |
1294 | Perl_croak(aTHX_ "Unterminated compressed integer"); |
| a6ec74c1 |
1295 | } |
| 1296 | break; |
| 1297 | case 'P': |
| 18529408 |
1298 | if (star > 0) |
| 518eff30 |
1299 | Perl_croak(aTHX_ "P must have an explicit size"); |
| a6ec74c1 |
1300 | EXTEND(SP, 1); |
| 1301 | if (sizeof(char*) > strend - s) |
| 1302 | break; |
| 1303 | else { |
| 1304 | Copy(s, &aptr, 1, char*); |
| 1305 | s += sizeof(char*); |
| 1306 | } |
| 1307 | sv = NEWSV(44, 0); |
| 1308 | if (aptr) |
| 1309 | sv_setpvn(sv, aptr, len); |
| 1310 | PUSHs(sv_2mortal(sv)); |
| 1311 | break; |
| 1312 | #ifdef HAS_QUAD |
| 1313 | case 'q': |
| 1314 | along = (strend - s) / sizeof(Quad_t); |
| 1315 | if (len > along) |
| 1316 | len = along; |
| fa8ec7c1 |
1317 | if (checksum) { |
| 1318 | while (len-- > 0) { |
| a6ec74c1 |
1319 | Copy(s, &aquad, 1, Quad_t); |
| 1320 | s += sizeof(Quad_t); |
| fa8ec7c1 |
1321 | if (checksum > bits_in_uv) |
| 1322 | cdouble += (NV)aquad; |
| 1323 | else |
| 92d41999 |
1324 | cuv += aquad; |
| a6ec74c1 |
1325 | } |
| a6ec74c1 |
1326 | } |
| fa8ec7c1 |
1327 | else { |
| 1328 | EXTEND(SP, len); |
| 1329 | EXTEND_MORTAL(len); |
| 1330 | while (len-- > 0) { |
| 1331 | if (s + sizeof(Quad_t) > strend) |
| 1332 | aquad = 0; |
| 1333 | else { |
| 92d41999 |
1334 | Copy(s, &aquad, 1, Quad_t); |
| 1335 | s += sizeof(Quad_t); |
| fa8ec7c1 |
1336 | } |
| 1337 | sv = NEWSV(42, 0); |
| 1338 | if (aquad >= IV_MIN && aquad <= IV_MAX) |
| 92d41999 |
1339 | sv_setiv(sv, (IV)aquad); |
| fa8ec7c1 |
1340 | else |
| 1341 | sv_setnv(sv, (NV)aquad); |
| 1342 | PUSHs(sv_2mortal(sv)); |
| 1343 | } |
| 1344 | } |
| a6ec74c1 |
1345 | break; |
| 1346 | case 'Q': |
| 206947d2 |
1347 | along = (strend - s) / sizeof(Uquad_t); |
| a6ec74c1 |
1348 | if (len > along) |
| 1349 | len = along; |
| fa8ec7c1 |
1350 | if (checksum) { |
| 1351 | while (len-- > 0) { |
| a6ec74c1 |
1352 | Copy(s, &auquad, 1, Uquad_t); |
| 1353 | s += sizeof(Uquad_t); |
| fa8ec7c1 |
1354 | if (checksum > bits_in_uv) |
| 1355 | cdouble += (NV)auquad; |
| 1356 | else |
| 92d41999 |
1357 | cuv += auquad; |
| a6ec74c1 |
1358 | } |
| a6ec74c1 |
1359 | } |
| fa8ec7c1 |
1360 | else { |
| 1361 | EXTEND(SP, len); |
| 1362 | EXTEND_MORTAL(len); |
| 1363 | while (len-- > 0) { |
| 1364 | if (s + sizeof(Uquad_t) > strend) |
| 1365 | auquad = 0; |
| 1366 | else { |
| 1367 | Copy(s, &auquad, 1, Uquad_t); |
| 1368 | s += sizeof(Uquad_t); |
| 1369 | } |
| 1370 | sv = NEWSV(43, 0); |
| 1371 | if (auquad <= UV_MAX) |
| 1372 | sv_setuv(sv, (UV)auquad); |
| 1373 | else |
| 1374 | sv_setnv(sv, (NV)auquad); |
| 1375 | PUSHs(sv_2mortal(sv)); |
| 1376 | } |
| 1377 | } |
| a6ec74c1 |
1378 | break; |
| 1379 | #endif |
| 1380 | /* float and double added gnb@melba.bby.oz.au 22/11/89 */ |
| 1381 | case 'f': |
| a6ec74c1 |
1382 | along = (strend - s) / sizeof(float); |
| 1383 | if (len > along) |
| 1384 | len = along; |
| 1385 | if (checksum) { |
| 1386 | while (len-- > 0) { |
| 1387 | Copy(s, &afloat, 1, float); |
| 1388 | s += sizeof(float); |
| 1389 | cdouble += afloat; |
| 1390 | } |
| 1391 | } |
| 1392 | else { |
| 1393 | EXTEND(SP, len); |
| 1394 | EXTEND_MORTAL(len); |
| 1395 | while (len-- > 0) { |
| 1396 | Copy(s, &afloat, 1, float); |
| 1397 | s += sizeof(float); |
| 1398 | sv = NEWSV(47, 0); |
| 1399 | sv_setnv(sv, (NV)afloat); |
| 1400 | PUSHs(sv_2mortal(sv)); |
| 1401 | } |
| 1402 | } |
| 1403 | break; |
| 1404 | case 'd': |
| a6ec74c1 |
1405 | along = (strend - s) / sizeof(double); |
| 1406 | if (len > along) |
| 1407 | len = along; |
| 1408 | if (checksum) { |
| 1409 | while (len-- > 0) { |
| 1410 | Copy(s, &adouble, 1, double); |
| 1411 | s += sizeof(double); |
| 1412 | cdouble += adouble; |
| 1413 | } |
| 1414 | } |
| 1415 | else { |
| 1416 | EXTEND(SP, len); |
| 1417 | EXTEND_MORTAL(len); |
| 1418 | while (len-- > 0) { |
| 1419 | Copy(s, &adouble, 1, double); |
| 1420 | s += sizeof(double); |
| 1421 | sv = NEWSV(48, 0); |
| 1422 | sv_setnv(sv, (NV)adouble); |
| 1423 | PUSHs(sv_2mortal(sv)); |
| 1424 | } |
| 1425 | } |
| 1426 | break; |
| 92d41999 |
1427 | case 'F': |
| 1428 | along = (strend - s) / NVSIZE; |
| 1429 | if (len > along) |
| 1430 | len = along; |
| 1431 | if (checksum) { |
| 1432 | while (len-- > 0) { |
| 1433 | Copy(s, &anv, 1, NV); |
| 1434 | s += NVSIZE; |
| 1435 | cdouble += anv; |
| 1436 | } |
| 1437 | } |
| 1438 | else { |
| 1439 | EXTEND(SP, len); |
| 1440 | EXTEND_MORTAL(len); |
| 1441 | while (len-- > 0) { |
| 1442 | Copy(s, &anv, 1, NV); |
| 1443 | s += NVSIZE; |
| 1444 | sv = NEWSV(48, 0); |
| 1445 | sv_setnv(sv, anv); |
| 1446 | PUSHs(sv_2mortal(sv)); |
| 1447 | } |
| 1448 | } |
| 1449 | break; |
| 1450 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 1451 | case 'D': |
| 1452 | along = (strend - s) / LONG_DOUBLESIZE; |
| 1453 | if (len > along) |
| 1454 | len = along; |
| 1455 | if (checksum) { |
| 1456 | while (len-- > 0) { |
| 1457 | Copy(s, &aldouble, 1, long double); |
| 1458 | s += LONG_DOUBLESIZE; |
| 1459 | cdouble += aldouble; |
| 1460 | } |
| 1461 | } |
| 1462 | else { |
| 1463 | EXTEND(SP, len); |
| 1464 | EXTEND_MORTAL(len); |
| 1465 | while (len-- > 0) { |
| 1466 | Copy(s, &aldouble, 1, long double); |
| 1467 | s += LONG_DOUBLESIZE; |
| 1468 | sv = NEWSV(48, 0); |
| 1469 | sv_setnv(sv, (NV)aldouble); |
| 1470 | PUSHs(sv_2mortal(sv)); |
| 1471 | } |
| 1472 | } |
| 1473 | break; |
| 1474 | #endif |
| a6ec74c1 |
1475 | case 'u': |
| 1476 | /* MKS: |
| 1477 | * Initialise the decode mapping. By using a table driven |
| 1478 | * algorithm, the code will be character-set independent |
| 1479 | * (and just as fast as doing character arithmetic) |
| 1480 | */ |
| 1481 | if (PL_uudmap['M'] == 0) { |
| 1482 | int i; |
| 1483 | |
| 1484 | for (i = 0; i < sizeof(PL_uuemap); i += 1) |
| 1485 | PL_uudmap[(U8)PL_uuemap[i]] = i; |
| 1486 | /* |
| 1487 | * Because ' ' and '`' map to the same value, |
| 1488 | * we need to decode them both the same. |
| 1489 | */ |
| 1490 | PL_uudmap[' '] = 0; |
| 1491 | } |
| 1492 | |
| 1493 | along = (strend - s) * 3 / 4; |
| 1494 | sv = NEWSV(42, along); |
| 1495 | if (along) |
| 1496 | SvPOK_on(sv); |
| 1497 | while (s < strend && *s > ' ' && ISUUCHAR(*s)) { |
| 1498 | I32 a, b, c, d; |
| 1499 | char hunk[4]; |
| 1500 | |
| 1501 | hunk[3] = '\0'; |
| 1502 | len = PL_uudmap[*(U8*)s++] & 077; |
| 1503 | while (len > 0) { |
| 1504 | if (s < strend && ISUUCHAR(*s)) |
| 1505 | a = PL_uudmap[*(U8*)s++] & 077; |
| 1506 | else |
| 1507 | a = 0; |
| 1508 | if (s < strend && ISUUCHAR(*s)) |
| 1509 | b = PL_uudmap[*(U8*)s++] & 077; |
| 1510 | else |
| 1511 | b = 0; |
| 1512 | if (s < strend && ISUUCHAR(*s)) |
| 1513 | c = PL_uudmap[*(U8*)s++] & 077; |
| 1514 | else |
| 1515 | c = 0; |
| 1516 | if (s < strend && ISUUCHAR(*s)) |
| 1517 | d = PL_uudmap[*(U8*)s++] & 077; |
| 1518 | else |
| 1519 | d = 0; |
| 1520 | hunk[0] = (a << 2) | (b >> 4); |
| 1521 | hunk[1] = (b << 4) | (c >> 2); |
| 1522 | hunk[2] = (c << 6) | d; |
| 1523 | sv_catpvn(sv, hunk, (len > 3) ? 3 : len); |
| 1524 | len -= 3; |
| 1525 | } |
| 1526 | if (*s == '\n') |
| 1527 | s++; |
| 1528 | else if (s[1] == '\n') /* possible checksum byte */ |
| 1529 | s += 2; |
| 1530 | } |
| 1531 | XPUSHs(sv_2mortal(sv)); |
| 1532 | break; |
| 1533 | } |
| 1534 | if (checksum) { |
| 1535 | sv = NEWSV(42, 0); |
| 1536 | if (strchr("fFdD", datumtype) || |
| 92d41999 |
1537 | (checksum > bits_in_uv && |
| 1538 | strchr("csSiIlLnNUvVqQjJ", datumtype)) ) { |
| a6ec74c1 |
1539 | NV trouble; |
| 1540 | |
| fa8ec7c1 |
1541 | adouble = (NV) (1 << (checksum & 15)); |
| a6ec74c1 |
1542 | while (checksum >= 16) { |
| 1543 | checksum -= 16; |
| 1544 | adouble *= 65536.0; |
| 1545 | } |
| a6ec74c1 |
1546 | while (cdouble < 0.0) |
| 1547 | cdouble += adouble; |
| 1548 | cdouble = Perl_modf(cdouble / adouble, &trouble) * adouble; |
| 1549 | sv_setnv(sv, cdouble); |
| 1550 | } |
| 1551 | else { |
| fa8ec7c1 |
1552 | if (checksum < bits_in_uv) { |
| 1553 | UV mask = ((UV)1 << checksum) - 1; |
| 92d41999 |
1554 | |
| 1555 | cuv &= mask; |
| a6ec74c1 |
1556 | } |
| 92d41999 |
1557 | sv_setuv(sv, cuv); |
| a6ec74c1 |
1558 | } |
| 1559 | XPUSHs(sv_2mortal(sv)); |
| 1560 | checksum = 0; |
| 1561 | } |
| 1562 | } |
| 18529408 |
1563 | if (new_s) |
| 1564 | *new_s = s; |
| 1565 | PUTBACK; |
| 1566 | return SP - PL_stack_base - start_sp_offset; |
| 1567 | } |
| 1568 | |
| 1569 | PP(pp_unpack) |
| 1570 | { |
| 1571 | dSP; |
| 1572 | dPOPPOPssrl; |
| 1573 | I32 gimme = GIMME_V; |
| 1574 | STRLEN llen; |
| 1575 | STRLEN rlen; |
| 1576 | register char *pat = SvPV(left, llen); |
| 1577 | #ifdef PACKED_IS_OCTETS |
| 1578 | /* Packed side is assumed to be octets - so force downgrade if it |
| 1579 | has been UTF-8 encoded by accident |
| 1580 | */ |
| 1581 | register char *s = SvPVbyte(right, rlen); |
| 1582 | #else |
| 1583 | register char *s = SvPV(right, rlen); |
| 1584 | #endif |
| 1585 | char *strend = s + rlen; |
| 1586 | register char *patend = pat + llen; |
| 1587 | register I32 cnt; |
| 1588 | |
| 1589 | PUTBACK; |
| 1590 | cnt = unpack_str(pat, patend, s, s, strend, NULL, 0, |
| 1591 | ((gimme == G_SCALAR) ? UNPACK_ONLY_ONE : 0) |
| 1592 | | (DO_UTF8(right) ? UNPACK_DO_UTF8 : 0)); |
| 1593 | SPAGAIN; |
| 1594 | if ( !cnt && gimme == G_SCALAR ) |
| 1595 | PUSHs(&PL_sv_undef); |
| a6ec74c1 |
1596 | RETURN; |
| 1597 | } |
| 1598 | |
| 1599 | STATIC void |
| 1600 | S_doencodes(pTHX_ register SV *sv, register char *s, register I32 len) |
| 1601 | { |
| 1602 | char hunk[5]; |
| 1603 | |
| 1604 | *hunk = PL_uuemap[len]; |
| 1605 | sv_catpvn(sv, hunk, 1); |
| 1606 | hunk[4] = '\0'; |
| 1607 | while (len > 2) { |
| 1608 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
| 1609 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)))]; |
| 1610 | hunk[2] = PL_uuemap[(077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)))]; |
| 1611 | hunk[3] = PL_uuemap[(077 & (s[2] & 077))]; |
| 1612 | sv_catpvn(sv, hunk, 4); |
| 1613 | s += 3; |
| 1614 | len -= 3; |
| 1615 | } |
| 1616 | if (len > 0) { |
| 1617 | char r = (len > 1 ? s[1] : '\0'); |
| 1618 | hunk[0] = PL_uuemap[(077 & (*s >> 2))]; |
| 1619 | hunk[1] = PL_uuemap[(077 & (((*s << 4) & 060) | ((r >> 4) & 017)))]; |
| 1620 | hunk[2] = PL_uuemap[(077 & ((r << 2) & 074))]; |
| 1621 | hunk[3] = PL_uuemap[0]; |
| 1622 | sv_catpvn(sv, hunk, 4); |
| 1623 | } |
| 1624 | sv_catpvn(sv, "\n", 1); |
| 1625 | } |
| 1626 | |
| 1627 | STATIC SV * |
| 1628 | S_is_an_int(pTHX_ char *s, STRLEN l) |
| 1629 | { |
| 1630 | STRLEN n_a; |
| 1631 | SV *result = newSVpvn(s, l); |
| 1632 | char *result_c = SvPV(result, n_a); /* convenience */ |
| 1633 | char *out = result_c; |
| 1634 | bool skip = 1; |
| 1635 | bool ignore = 0; |
| 1636 | |
| 1637 | while (*s) { |
| 1638 | switch (*s) { |
| 1639 | case ' ': |
| 1640 | break; |
| 1641 | case '+': |
| 1642 | if (!skip) { |
| 1643 | SvREFCNT_dec(result); |
| 1644 | return (NULL); |
| 1645 | } |
| 1646 | break; |
| 1647 | case '0': |
| 1648 | case '1': |
| 1649 | case '2': |
| 1650 | case '3': |
| 1651 | case '4': |
| 1652 | case '5': |
| 1653 | case '6': |
| 1654 | case '7': |
| 1655 | case '8': |
| 1656 | case '9': |
| 1657 | skip = 0; |
| 1658 | if (!ignore) { |
| 1659 | *(out++) = *s; |
| 1660 | } |
| 1661 | break; |
| 1662 | case '.': |
| 1663 | ignore = 1; |
| 1664 | break; |
| 1665 | default: |
| 1666 | SvREFCNT_dec(result); |
| 1667 | return (NULL); |
| 1668 | } |
| 1669 | s++; |
| 1670 | } |
| 1671 | *(out++) = '\0'; |
| 1672 | SvCUR_set(result, out - result_c); |
| 1673 | return (result); |
| 1674 | } |
| 1675 | |
| 1676 | /* pnum must be '\0' terminated */ |
| 1677 | STATIC int |
| 1678 | S_div128(pTHX_ SV *pnum, bool *done) |
| 1679 | { |
| 1680 | STRLEN len; |
| 1681 | char *s = SvPV(pnum, len); |
| 1682 | int m = 0; |
| 1683 | int r = 0; |
| 1684 | char *t = s; |
| 1685 | |
| 1686 | *done = 1; |
| 1687 | while (*t) { |
| 1688 | int i; |
| 1689 | |
| 1690 | i = m * 10 + (*t - '0'); |
| 1691 | m = i & 0x7F; |
| 1692 | r = (i >> 7); /* r < 10 */ |
| 1693 | if (r) { |
| 1694 | *done = 0; |
| 1695 | } |
| 1696 | *(t++) = '0' + r; |
| 1697 | } |
| 1698 | *(t++) = '\0'; |
| 1699 | SvCUR_set(pnum, (STRLEN) (t - s)); |
| 1700 | return (m); |
| 1701 | } |
| 1702 | |
| 18529408 |
1703 | #define PACK_CHILD 0x1 |
| a6ec74c1 |
1704 | |
| 18529408 |
1705 | /* |
| 1706 | =for apidoc pack_cat |
| 1707 | |
| 1708 | The engine implementing pack() Perl function. |
| 1709 | |
| 1710 | =cut */ |
| 1711 | |
| 1712 | void |
| 1713 | Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags) |
| a6ec74c1 |
1714 | { |
| a6ec74c1 |
1715 | register I32 items; |
| 1716 | STRLEN fromlen; |
| a6ec74c1 |
1717 | register I32 len; |
| 1718 | I32 datumtype; |
| 1719 | SV *fromstr; |
| 1720 | /*SUPPRESS 442*/ |
| 1721 | static char null10[] = {0,0,0,0,0,0,0,0,0,0}; |
| 1722 | static char *space10 = " "; |
| 18529408 |
1723 | int star; |
| a6ec74c1 |
1724 | |
| 1725 | /* These must not be in registers: */ |
| 1726 | char achar; |
| 1727 | I16 ashort; |
| 1728 | int aint; |
| 1729 | unsigned int auint; |
| 1730 | I32 along; |
| 1731 | U32 aulong; |
| 92d41999 |
1732 | IV aiv; |
| 1733 | UV auv; |
| 1734 | NV anv; |
| 1735 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 1736 | long double aldouble; |
| 1737 | #endif |
| a6ec74c1 |
1738 | #ifdef HAS_QUAD |
| 1739 | Quad_t aquad; |
| 1740 | Uquad_t auquad; |
| 1741 | #endif |
| 1742 | char *aptr; |
| 1743 | float afloat; |
| 1744 | double adouble; |
| 1745 | int commas = 0; |
| 1746 | #ifdef PERL_NATINT_PACK |
| 1747 | int natint; /* native integer */ |
| 1748 | #endif |
| 1749 | |
| 18529408 |
1750 | items = endlist - beglist; |
| 1751 | #ifndef PACKED_IS_OCTETS |
| 1752 | pat = next_symbol(pat, patend); |
| 1753 | if (pat < patend && *pat == 'U' && !flags) |
| 1754 | SvUTF8_on(cat); |
| 1755 | #endif |
| 1756 | while ((pat = next_symbol(pat, patend)) < patend) { |
| a6ec74c1 |
1757 | SV *lengthcode = Nullsv; |
| 18529408 |
1758 | #define NEXTFROM ( lengthcode ? lengthcode : items-- > 0 ? *beglist++ : &PL_sv_no) |
| a6ec74c1 |
1759 | datumtype = *pat++ & 0xFF; |
| 1760 | #ifdef PERL_NATINT_PACK |
| 1761 | natint = 0; |
| 1762 | #endif |
| a6ec74c1 |
1763 | if (*pat == '!') { |
| 62f95557 |
1764 | static const char natstr[] = "sSiIlLxX"; |
| a6ec74c1 |
1765 | |
| 1766 | if (strchr(natstr, datumtype)) { |
| 62f95557 |
1767 | if (datumtype == 'x' || datumtype == 'X') { |
| 1768 | datumtype |= TYPE_IS_SHRIEKING; |
| 1769 | } else { /* XXXX Should be redone similarly! */ |
| a6ec74c1 |
1770 | #ifdef PERL_NATINT_PACK |
| 62f95557 |
1771 | natint = 1; |
| a6ec74c1 |
1772 | #endif |
| 62f95557 |
1773 | } |
| a6ec74c1 |
1774 | pat++; |
| 1775 | } |
| 1776 | else |
| 518eff30 |
1777 | Perl_croak(aTHX_ "'!' allowed only after types %s", natstr); |
| a6ec74c1 |
1778 | } |
| 18529408 |
1779 | len = find_count(&pat, patend, &star); |
| 1780 | if (star > 0) /* Count is '*' */ |
| a6ec74c1 |
1781 | len = strchr("@Xxu", datumtype) ? 0 : items; |
| 18529408 |
1782 | else if (star < 0) /* Default len */ |
| a6ec74c1 |
1783 | len = 1; |
| 18529408 |
1784 | if (*pat == '/') { /* doing lookahead how... */ |
| a6ec74c1 |
1785 | ++pat; |
| 1786 | if ((*pat != 'a' && *pat != 'A' && *pat != 'Z') || pat[1] != '*') |
| 518eff30 |
1787 | Perl_croak(aTHX_ "/ must be followed by a*, A* or Z*"); |
| a6ec74c1 |
1788 | lengthcode = sv_2mortal(newSViv(sv_len(items > 0 |
| 18529408 |
1789 | ? *beglist : &PL_sv_no) |
| a6ec74c1 |
1790 | + (*pat == 'Z' ? 1 : 0))); |
| 1791 | } |
| 1792 | switch(datumtype) { |
| 1793 | default: |
| 518eff30 |
1794 | Perl_croak(aTHX_ "Invalid type in pack: '%c'", (int)datumtype); |
| a6ec74c1 |
1795 | case ',': /* grandfather in commas but with a warning */ |
| 1796 | if (commas++ == 0 && ckWARN(WARN_PACK)) |
| 9014280d |
1797 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
| a6ec74c1 |
1798 | "Invalid type in pack: '%c'", (int)datumtype); |
| 1799 | break; |
| 1800 | case '%': |
| 518eff30 |
1801 | Perl_croak(aTHX_ "%% may only be used in unpack"); |
| a6ec74c1 |
1802 | case '@': |
| 1803 | len -= SvCUR(cat); |
| 1804 | if (len > 0) |
| 1805 | goto grow; |
| 1806 | len = -len; |
| 1807 | if (len > 0) |
| 1808 | goto shrink; |
| 1809 | break; |
| 18529408 |
1810 | case '(': |
| 1811 | { |
| 1812 | char *beg = pat; |
| 1813 | SV **savebeglist = beglist; /* beglist de-register-ed */ |
| 1814 | |
| 1815 | if (star >= 0) |
| 518eff30 |
1816 | Perl_croak(aTHX_ "()-group starts with a count"); |
| 18529408 |
1817 | aptr = group_end(beg, patend, ')'); |
| 1818 | pat = aptr + 1; |
| 1819 | if (star != -2) { |
| 1820 | len = find_count(&pat, patend, &star); |
| 1821 | if (star < 0) /* No count */ |
| 1822 | len = 1; |
| 1823 | else if (star > 0) /* Star */ |
| 1824 | len = items; /* long enough? */ |
| 1825 | } |
| 1826 | while (len--) { |
| 1827 | pack_cat(cat, beg, aptr, savebeglist, endlist, |
| 1828 | &savebeglist, PACK_CHILD); |
| 1829 | if (star > 0 && savebeglist == endlist) |
| 1830 | break; /* No way to continue */ |
| 1831 | } |
| 1832 | beglist = savebeglist; |
| 1833 | break; |
| 1834 | } |
| 62f95557 |
1835 | case 'X' | TYPE_IS_SHRIEKING: |
| 1836 | if (!len) /* Avoid division by 0 */ |
| 1837 | len = 1; |
| 1838 | len = (SvCUR(cat)) % len; |
| 1839 | /* FALL THROUGH */ |
| a6ec74c1 |
1840 | case 'X': |
| 1841 | shrink: |
| 1842 | if (SvCUR(cat) < len) |
| 518eff30 |
1843 | Perl_croak(aTHX_ "X outside of string"); |
| a6ec74c1 |
1844 | SvCUR(cat) -= len; |
| 1845 | *SvEND(cat) = '\0'; |
| 1846 | break; |
| 62f95557 |
1847 | case 'x' | TYPE_IS_SHRIEKING: |
| 1848 | if (!len) /* Avoid division by 0 */ |
| 1849 | len = 1; |
| 1850 | aint = (SvCUR(cat)) % len; |
| 1851 | if (aint) /* Other portable ways? */ |
| 1852 | len = len - aint; |
| 1853 | else |
| 1854 | len = 0; |
| 1855 | /* FALL THROUGH */ |
| a6ec74c1 |
1856 | case 'x': |
| 1857 | grow: |
| 1858 | while (len >= 10) { |
| 1859 | sv_catpvn(cat, null10, 10); |
| 1860 | len -= 10; |
| 1861 | } |
| 1862 | sv_catpvn(cat, null10, len); |
| 1863 | break; |
| 1864 | case 'A': |
| 1865 | case 'Z': |
| 1866 | case 'a': |
| 1867 | fromstr = NEXTFROM; |
| 1868 | aptr = SvPV(fromstr, fromlen); |
| 18529408 |
1869 | if (star > 0) { /* -2 after '/' */ |
| a6ec74c1 |
1870 | len = fromlen; |
| 1871 | if (datumtype == 'Z') |
| 1872 | ++len; |
| 1873 | } |
| 1874 | if (fromlen >= len) { |
| 1875 | sv_catpvn(cat, aptr, len); |
| 1876 | if (datumtype == 'Z') |
| 1877 | *(SvEND(cat)-1) = '\0'; |
| 1878 | } |
| 1879 | else { |
| 1880 | sv_catpvn(cat, aptr, fromlen); |
| 1881 | len -= fromlen; |
| 1882 | if (datumtype == 'A') { |
| 1883 | while (len >= 10) { |
| 1884 | sv_catpvn(cat, space10, 10); |
| 1885 | len -= 10; |
| 1886 | } |
| 1887 | sv_catpvn(cat, space10, len); |
| 1888 | } |
| 1889 | else { |
| 1890 | while (len >= 10) { |
| 1891 | sv_catpvn(cat, null10, 10); |
| 1892 | len -= 10; |
| 1893 | } |
| 1894 | sv_catpvn(cat, null10, len); |
| 1895 | } |
| 1896 | } |
| 1897 | break; |
| 1898 | case 'B': |
| 1899 | case 'b': |
| 1900 | { |
| 1901 | register char *str; |
| 1902 | I32 saveitems; |
| 1903 | |
| 1904 | fromstr = NEXTFROM; |
| 1905 | saveitems = items; |
| 1906 | str = SvPV(fromstr, fromlen); |
| 18529408 |
1907 | if (star > 0) |
| a6ec74c1 |
1908 | len = fromlen; |
| 1909 | aint = SvCUR(cat); |
| 1910 | SvCUR(cat) += (len+7)/8; |
| 1911 | SvGROW(cat, SvCUR(cat) + 1); |
| 1912 | aptr = SvPVX(cat) + aint; |
| 1913 | if (len > fromlen) |
| 1914 | len = fromlen; |
| 1915 | aint = len; |
| 1916 | items = 0; |
| 1917 | if (datumtype == 'B') { |
| 1918 | for (len = 0; len++ < aint;) { |
| 1919 | items |= *str++ & 1; |
| 1920 | if (len & 7) |
| 1921 | items <<= 1; |
| 1922 | else { |
| 1923 | *aptr++ = items & 0xff; |
| 1924 | items = 0; |
| 1925 | } |
| 1926 | } |
| 1927 | } |
| 1928 | else { |
| 1929 | for (len = 0; len++ < aint;) { |
| 1930 | if (*str++ & 1) |
| 1931 | items |= 128; |
| 1932 | if (len & 7) |
| 1933 | items >>= 1; |
| 1934 | else { |
| 1935 | *aptr++ = items & 0xff; |
| 1936 | items = 0; |
| 1937 | } |
| 1938 | } |
| 1939 | } |
| 1940 | if (aint & 7) { |
| 1941 | if (datumtype == 'B') |
| 1942 | items <<= 7 - (aint & 7); |
| 1943 | else |
| 1944 | items >>= 7 - (aint & 7); |
| 1945 | *aptr++ = items & 0xff; |
| 1946 | } |
| 1947 | str = SvPVX(cat) + SvCUR(cat); |
| 1948 | while (aptr <= str) |
| 1949 | *aptr++ = '\0'; |
| 1950 | |
| 1951 | items = saveitems; |
| 1952 | } |
| 1953 | break; |
| 1954 | case 'H': |
| 1955 | case 'h': |
| 1956 | { |
| 1957 | register char *str; |
| 1958 | I32 saveitems; |
| 1959 | |
| 1960 | fromstr = NEXTFROM; |
| 1961 | saveitems = items; |
| 1962 | str = SvPV(fromstr, fromlen); |
| 18529408 |
1963 | if (star > 0) |
| a6ec74c1 |
1964 | len = fromlen; |
| 1965 | aint = SvCUR(cat); |
| 1966 | SvCUR(cat) += (len+1)/2; |
| 1967 | SvGROW(cat, SvCUR(cat) + 1); |
| 1968 | aptr = SvPVX(cat) + aint; |
| 1969 | if (len > fromlen) |
| 1970 | len = fromlen; |
| 1971 | aint = len; |
| 1972 | items = 0; |
| 1973 | if (datumtype == 'H') { |
| 1974 | for (len = 0; len++ < aint;) { |
| 1975 | if (isALPHA(*str)) |
| 1976 | items |= ((*str++ & 15) + 9) & 15; |
| 1977 | else |
| 1978 | items |= *str++ & 15; |
| 1979 | if (len & 1) |
| 1980 | items <<= 4; |
| 1981 | else { |
| 1982 | *aptr++ = items & 0xff; |
| 1983 | items = 0; |
| 1984 | } |
| 1985 | } |
| 1986 | } |
| 1987 | else { |
| 1988 | for (len = 0; len++ < aint;) { |
| 1989 | if (isALPHA(*str)) |
| 1990 | items |= (((*str++ & 15) + 9) & 15) << 4; |
| 1991 | else |
| 1992 | items |= (*str++ & 15) << 4; |
| 1993 | if (len & 1) |
| 1994 | items >>= 4; |
| 1995 | else { |
| 1996 | *aptr++ = items & 0xff; |
| 1997 | items = 0; |
| 1998 | } |
| 1999 | } |
| 2000 | } |
| 2001 | if (aint & 1) |
| 2002 | *aptr++ = items & 0xff; |
| 2003 | str = SvPVX(cat) + SvCUR(cat); |
| 2004 | while (aptr <= str) |
| 2005 | *aptr++ = '\0'; |
| 2006 | |
| 2007 | items = saveitems; |
| 2008 | } |
| 2009 | break; |
| 2010 | case 'C': |
| 2011 | case 'c': |
| 2012 | while (len-- > 0) { |
| 2013 | fromstr = NEXTFROM; |
| 2014 | switch (datumtype) { |
| 2015 | case 'C': |
| 2016 | aint = SvIV(fromstr); |
| 2017 | if ((aint < 0 || aint > 255) && |
| 2018 | ckWARN(WARN_PACK)) |
| 9014280d |
2019 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
| a6ec74c1 |
2020 | "Character in \"C\" format wrapped"); |
| 2021 | achar = aint & 255; |
| 2022 | sv_catpvn(cat, &achar, sizeof(char)); |
| 2023 | break; |
| 2024 | case 'c': |
| 2025 | aint = SvIV(fromstr); |
| 2026 | if ((aint < -128 || aint > 127) && |
| 2027 | ckWARN(WARN_PACK)) |
| 9014280d |
2028 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
| a6ec74c1 |
2029 | "Character in \"c\" format wrapped"); |
| 2030 | achar = aint & 255; |
| 2031 | sv_catpvn(cat, &achar, sizeof(char)); |
| 2032 | break; |
| 2033 | } |
| 2034 | } |
| 2035 | break; |
| 2036 | case 'U': |
| 2037 | while (len-- > 0) { |
| 2038 | fromstr = NEXTFROM; |
| e87322b2 |
2039 | auint = UNI_TO_NATIVE(SvUV(fromstr)); |
| a6ec74c1 |
2040 | SvGROW(cat, SvCUR(cat) + UTF8_MAXLEN + 1); |
| 2041 | SvCUR_set(cat, (char*)uvchr_to_utf8((U8*)SvEND(cat),auint) |
| 2042 | - SvPVX(cat)); |
| 2043 | } |
| 2044 | *SvEND(cat) = '\0'; |
| 2045 | break; |
| 2046 | /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */ |
| 2047 | case 'f': |
| a6ec74c1 |
2048 | while (len-- > 0) { |
| 2049 | fromstr = NEXTFROM; |
| 2050 | afloat = (float)SvNV(fromstr); |
| 2051 | sv_catpvn(cat, (char *)&afloat, sizeof (float)); |
| 2052 | } |
| 2053 | break; |
| 2054 | case 'd': |
| a6ec74c1 |
2055 | while (len-- > 0) { |
| 2056 | fromstr = NEXTFROM; |
| 2057 | adouble = (double)SvNV(fromstr); |
| 2058 | sv_catpvn(cat, (char *)&adouble, sizeof (double)); |
| 2059 | } |
| 2060 | break; |
| 92d41999 |
2061 | case 'F': |
| 2062 | while (len-- > 0) { |
| 2063 | fromstr = NEXTFROM; |
| 2064 | anv = SvNV(fromstr); |
| 2065 | sv_catpvn(cat, (char *)&anv, NVSIZE); |
| 2066 | } |
| 2067 | break; |
| 2068 | #if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE) |
| 2069 | case 'D': |
| 2070 | while (len-- > 0) { |
| 2071 | fromstr = NEXTFROM; |
| 2072 | aldouble = (long double)SvNV(fromstr); |
| 2073 | sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE); |
| 2074 | } |
| 2075 | break; |
| 2076 | #endif |
| a6ec74c1 |
2077 | case 'n': |
| 2078 | while (len-- > 0) { |
| 2079 | fromstr = NEXTFROM; |
| 2080 | ashort = (I16)SvIV(fromstr); |
| 2081 | #ifdef HAS_HTONS |
| 2082 | ashort = PerlSock_htons(ashort); |
| 2083 | #endif |
| 2084 | CAT16(cat, &ashort); |
| 2085 | } |
| 2086 | break; |
| 2087 | case 'v': |
| 2088 | while (len-- > 0) { |
| 2089 | fromstr = NEXTFROM; |
| 2090 | ashort = (I16)SvIV(fromstr); |
| 2091 | #ifdef HAS_HTOVS |
| 2092 | ashort = htovs(ashort); |
| 2093 | #endif |
| 2094 | CAT16(cat, &ashort); |
| 2095 | } |
| 2096 | break; |
| 2097 | case 'S': |
| 2098 | #if SHORTSIZE != SIZE16 |
| 2099 | if (natint) { |
| 2100 | unsigned short aushort; |
| 2101 | |
| 2102 | while (len-- > 0) { |
| 2103 | fromstr = NEXTFROM; |
| 2104 | aushort = SvUV(fromstr); |
| 2105 | sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short)); |
| 2106 | } |
| 2107 | } |
| 2108 | else |
| 2109 | #endif |
| 2110 | { |
| 2111 | U16 aushort; |
| 2112 | |
| 2113 | while (len-- > 0) { |
| 2114 | fromstr = NEXTFROM; |
| 2115 | aushort = (U16)SvUV(fromstr); |
| 2116 | CAT16(cat, &aushort); |
| 2117 | } |
| 2118 | |
| 2119 | } |
| 2120 | break; |
| 2121 | case 's': |
| 2122 | #if SHORTSIZE != SIZE16 |
| 2123 | if (natint) { |
| 2124 | short ashort; |
| 2125 | |
| 2126 | while (len-- > 0) { |
| 2127 | fromstr = NEXTFROM; |
| 2128 | ashort = SvIV(fromstr); |
| 2129 | sv_catpvn(cat, (char *)&ashort, sizeof(short)); |
| 2130 | } |
| 2131 | } |
| 2132 | else |
| 2133 | #endif |
| 2134 | { |
| 2135 | while (len-- > 0) { |
| 2136 | fromstr = NEXTFROM; |
| 2137 | ashort = (I16)SvIV(fromstr); |
| 2138 | CAT16(cat, &ashort); |
| 2139 | } |
| 2140 | } |
| 2141 | break; |
| 2142 | case 'I': |
| 2143 | while (len-- > 0) { |
| 2144 | fromstr = NEXTFROM; |
| 2145 | auint = SvUV(fromstr); |
| 2146 | sv_catpvn(cat, (char*)&auint, sizeof(unsigned int)); |
| 2147 | } |
| 2148 | break; |
| 92d41999 |
2149 | case 'j': |
| 2150 | while (len-- > 0) { |
| 2151 | fromstr = NEXTFROM; |
| 2152 | aiv = SvIV(fromstr); |
| 2153 | sv_catpvn(cat, (char*)&aiv, IVSIZE); |
| 2154 | } |
| 2155 | break; |
| 2156 | case 'J': |
| 2157 | while (len-- > 0) { |
| 2158 | fromstr = NEXTFROM; |
| 2159 | auv = SvUV(fromstr); |
| 2160 | sv_catpvn(cat, (char*)&auv, UVSIZE); |
| 2161 | } |
| 2162 | break; |
| a6ec74c1 |
2163 | case 'w': |
| 2164 | while (len-- > 0) { |
| 2165 | fromstr = NEXTFROM; |
| 2166 | adouble = Perl_floor(SvNV(fromstr)); |
| 2167 | |
| 2168 | if (adouble < 0) |
| 518eff30 |
2169 | Perl_croak(aTHX_ "Cannot compress negative numbers"); |
| a6ec74c1 |
2170 | |
| 2171 | if ( |
| 2172 | #if UVSIZE > 4 && UVSIZE >= NVSIZE |
| 2173 | adouble <= 0xffffffff |
| 2174 | #else |
| 2175 | # ifdef CXUX_BROKEN_CONSTANT_CONVERT |
| 2176 | adouble <= UV_MAX_cxux |
| 2177 | # else |
| 2178 | adouble <= UV_MAX |
| 2179 | # endif |
| 2180 | #endif |
| 2181 | ) |
| 2182 | { |
| 2183 | char buf[1 + sizeof(UV)]; |
| 2184 | char *in = buf + sizeof(buf); |
| 2185 | UV auv = U_V(adouble); |
| 2186 | |
| 2187 | do { |
| 2188 | *--in = (auv & 0x7f) | 0x80; |
| 2189 | auv >>= 7; |
| 2190 | } while (auv); |
| 2191 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
| 2192 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
| 2193 | } |
| 2194 | else if (SvPOKp(fromstr)) { /* decimal string arithmetics */ |
| 2195 | char *from, *result, *in; |
| 2196 | SV *norm; |
| 2197 | STRLEN len; |
| 2198 | bool done; |
| 2199 | |
| 2200 | /* Copy string and check for compliance */ |
| 2201 | from = SvPV(fromstr, len); |
| 2202 | if ((norm = is_an_int(from, len)) == NULL) |
| 518eff30 |
2203 | Perl_croak(aTHX_ "can compress only unsigned integer"); |
| a6ec74c1 |
2204 | |
| 2205 | New('w', result, len, char); |
| 2206 | in = result + len; |
| 2207 | done = FALSE; |
| 2208 | while (!done) |
| 2209 | *--in = div128(norm, &done) | 0x80; |
| 2210 | result[len - 1] &= 0x7F; /* clear continue bit */ |
| 2211 | sv_catpvn(cat, in, (result + len) - in); |
| 2212 | Safefree(result); |
| 2213 | SvREFCNT_dec(norm); /* free norm */ |
| 2214 | } |
| 2215 | else if (SvNOKp(fromstr)) { |
| 2216 | char buf[sizeof(double) * 2]; /* 8/7 <= 2 */ |
| 2217 | char *in = buf + sizeof(buf); |
| 2218 | |
| 2219 | do { |
| 2220 | double next = floor(adouble / 128); |
| 2221 | *--in = (unsigned char)(adouble - (next * 128)) | 0x80; |
| 2222 | if (in <= buf) /* this cannot happen ;-) */ |
| 518eff30 |
2223 | Perl_croak(aTHX_ "Cannot compress integer"); |
| a6ec74c1 |
2224 | adouble = next; |
| 2225 | } while (adouble > 0); |
| 2226 | buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */ |
| 2227 | sv_catpvn(cat, in, (buf + sizeof(buf)) - in); |
| 2228 | } |
| 735b914b |
2229 | else { |
| 2230 | char *from, *result, *in; |
| 2231 | SV *norm; |
| 2232 | STRLEN len; |
| 2233 | bool done; |
| 2234 | |
| 2235 | /* Copy string and check for compliance */ |
| 2236 | from = SvPV(fromstr, len); |
| 2237 | if ((norm = is_an_int(from, len)) == NULL) |
| 518eff30 |
2238 | Perl_croak(aTHX_ "can compress only unsigned integer"); |
| 735b914b |
2239 | |
| 2240 | New('w', result, len, char); |
| 2241 | in = result + len; |
| 2242 | done = FALSE; |
| 2243 | while (!done) |
| 2244 | *--in = div128(norm, &done) | 0x80; |
| 2245 | result[len - 1] &= 0x7F; /* clear continue bit */ |
| 2246 | sv_catpvn(cat, in, (result + len) - in); |
| 2247 | Safefree(result); |
| 2248 | SvREFCNT_dec(norm); /* free norm */ |
| 2249 | } |
| a6ec74c1 |
2250 | } |
| 2251 | break; |
| 2252 | case 'i': |
| 2253 | while (len-- > 0) { |
| 2254 | fromstr = NEXTFROM; |
| 2255 | aint = SvIV(fromstr); |
| 2256 | sv_catpvn(cat, (char*)&aint, sizeof(int)); |
| 2257 | } |
| 2258 | break; |
| 2259 | case 'N': |
| 2260 | while (len-- > 0) { |
| 2261 | fromstr = NEXTFROM; |
| 2262 | aulong = SvUV(fromstr); |
| 2263 | #ifdef HAS_HTONL |
| 2264 | aulong = PerlSock_htonl(aulong); |
| 2265 | #endif |
| 2266 | CAT32(cat, &aulong); |
| 2267 | } |
| 2268 | break; |
| 2269 | case 'V': |
| 2270 | while (len-- > 0) { |
| 2271 | fromstr = NEXTFROM; |
| 2272 | aulong = SvUV(fromstr); |
| 2273 | #ifdef HAS_HTOVL |
| 2274 | aulong = htovl(aulong); |
| 2275 | #endif |
| 2276 | CAT32(cat, &aulong); |
| 2277 | } |
| 2278 | break; |
| 2279 | case 'L': |
| 2280 | #if LONGSIZE != SIZE32 |
| 2281 | if (natint) { |
| 2282 | unsigned long aulong; |
| 2283 | |
| 2284 | while (len-- > 0) { |
| 2285 | fromstr = NEXTFROM; |
| 2286 | aulong = SvUV(fromstr); |
| 2287 | sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long)); |
| 2288 | } |
| 2289 | } |
| 2290 | else |
| 2291 | #endif |
| 2292 | { |
| 2293 | while (len-- > 0) { |
| 2294 | fromstr = NEXTFROM; |
| 2295 | aulong = SvUV(fromstr); |
| 2296 | CAT32(cat, &aulong); |
| 2297 | } |
| 2298 | } |
| 2299 | break; |
| 2300 | case 'l': |
| 2301 | #if LONGSIZE != SIZE32 |
| 2302 | if (natint) { |
| 2303 | long along; |
| 2304 | |
| 2305 | while (len-- > 0) { |
| 2306 | fromstr = NEXTFROM; |
| 2307 | along = SvIV(fromstr); |
| 2308 | sv_catpvn(cat, (char *)&along, sizeof(long)); |
| 2309 | } |
| 2310 | } |
| 2311 | else |
| 2312 | #endif |
| 2313 | { |
| 2314 | while (len-- > 0) { |
| 2315 | fromstr = NEXTFROM; |
| 2316 | along = SvIV(fromstr); |
| 2317 | CAT32(cat, &along); |
| 2318 | } |
| 2319 | } |
| 2320 | break; |
| 2321 | #ifdef HAS_QUAD |
| 2322 | case 'Q': |
| 2323 | while (len-- > 0) { |
| 2324 | fromstr = NEXTFROM; |
| 2325 | auquad = (Uquad_t)SvUV(fromstr); |
| 2326 | sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t)); |
| 2327 | } |
| 2328 | break; |
| 2329 | case 'q': |
| 2330 | while (len-- > 0) { |
| 2331 | fromstr = NEXTFROM; |
| 2332 | aquad = (Quad_t)SvIV(fromstr); |
| 2333 | sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t)); |
| 2334 | } |
| 2335 | break; |
| 2336 | #endif |
| 2337 | case 'P': |
| 2338 | len = 1; /* assume SV is correct length */ |
| 2339 | /* FALL THROUGH */ |
| 2340 | case 'p': |
| 2341 | while (len-- > 0) { |
| 2342 | fromstr = NEXTFROM; |
| 2343 | if (fromstr == &PL_sv_undef) |
| 2344 | aptr = NULL; |
| 2345 | else { |
| 2346 | STRLEN n_a; |
| 2347 | /* XXX better yet, could spirit away the string to |
| 2348 | * a safe spot and hang on to it until the result |
| 2349 | * of pack() (and all copies of the result) are |
| 2350 | * gone. |
| 2351 | */ |
| 2352 | if (ckWARN(WARN_PACK) && (SvTEMP(fromstr) |
| 2353 | || (SvPADTMP(fromstr) |
| 2354 | && !SvREADONLY(fromstr)))) |
| 2355 | { |
| 9014280d |
2356 | Perl_warner(aTHX_ packWARN(WARN_PACK), |
| a6ec74c1 |
2357 | "Attempt to pack pointer to temporary value"); |
| 2358 | } |
| 2359 | if (SvPOK(fromstr) || SvNIOK(fromstr)) |
| 2360 | aptr = SvPV(fromstr,n_a); |
| 2361 | else |
| 2362 | aptr = SvPV_force(fromstr,n_a); |
| 2363 | } |
| 2364 | sv_catpvn(cat, (char*)&aptr, sizeof(char*)); |
| 2365 | } |
| 2366 | break; |
| 2367 | case 'u': |
| 2368 | fromstr = NEXTFROM; |
| 2369 | aptr = SvPV(fromstr, fromlen); |
| 2370 | SvGROW(cat, fromlen * 4 / 3); |
| 19c9db5e |
2371 | if (len <= 2) |
| a6ec74c1 |
2372 | len = 45; |
| 2373 | else |
| 2374 | len = len / 3 * 3; |
| 2375 | while (fromlen > 0) { |
| 2376 | I32 todo; |
| 2377 | |
| 2378 | if (fromlen > len) |
| 2379 | todo = len; |
| 2380 | else |
| 2381 | todo = fromlen; |
| 2382 | doencodes(cat, aptr, todo); |
| 2383 | fromlen -= todo; |
| 2384 | aptr += todo; |
| 2385 | } |
| 2386 | break; |
| 2387 | } |
| 2388 | } |
| 18529408 |
2389 | if (next_in_list) |
| 2390 | *next_in_list = beglist; |
| 2391 | } |
| 2392 | #undef NEXTFROM |
| 2393 | |
| 2394 | |
| 2395 | PP(pp_pack) |
| 2396 | { |
| 2397 | dSP; dMARK; dORIGMARK; dTARGET; |
| 2398 | register SV *cat = TARG; |
| 2399 | STRLEN fromlen; |
| 2400 | register char *pat = SvPVx(*++MARK, fromlen); |
| 2401 | register char *patend = pat + fromlen; |
| 2402 | |
| 2403 | MARK++; |
| 2404 | sv_setpvn(cat, "", 0); |
| 2405 | |
| 2406 | pack_cat(cat, pat, patend, MARK, SP + 1, NULL, 0); |
| 2407 | |
| a6ec74c1 |
2408 | SvSETMAGIC(cat); |
| 2409 | SP = ORIGMARK; |
| 2410 | PUSHs(cat); |
| 2411 | RETURN; |
| 2412 | } |
| a6ec74c1 |
2413 | |
projects / p5sagit/p5-mst-13.2.git / blame