Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* util.c |
a687059c | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
a687059c | 4 | * |
d48672a2 LW |
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. | |
8d063cd8 | 7 | * |
8d063cd8 | 8 | */ |
a0d0e21e LW |
9 | |
10 | /* | |
11 | * "Very useful, no doubt, that was to Saruman; yet it seems that he was | |
12 | * not content." --Gandalf | |
13 | */ | |
8d063cd8 | 14 | |
8d063cd8 | 15 | #include "EXTERN.h" |
8d063cd8 | 16 | #include "perl.h" |
62b28dd9 | 17 | |
6eb13c3b | 18 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
a687059c | 19 | #include <signal.h> |
62b28dd9 | 20 | #endif |
a687059c | 21 | |
36477c24 | 22 | #ifndef SIG_ERR |
23 | # define SIG_ERR ((Sighandler_t) -1) | |
24 | #endif | |
25 | ||
bd4080b3 | 26 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
85e6fe83 | 27 | #ifdef I_UNISTD |
8990e307 LW |
28 | # include <unistd.h> |
29 | #endif | |
30 | ||
a687059c LW |
31 | #ifdef I_VFORK |
32 | # include <vfork.h> | |
33 | #endif | |
34 | ||
94b6baf5 AD |
35 | /* Put this after #includes because fork and vfork prototypes may |
36 | conflict. | |
37 | */ | |
38 | #ifndef HAS_VFORK | |
39 | # define vfork fork | |
40 | #endif | |
41 | ||
fe14fcc3 LW |
42 | #ifdef I_FCNTL |
43 | # include <fcntl.h> | |
44 | #endif | |
45 | #ifdef I_SYS_FILE | |
46 | # include <sys/file.h> | |
47 | #endif | |
48 | ||
ff68c719 | 49 | #ifdef I_SYS_WAIT |
50 | # include <sys/wait.h> | |
51 | #endif | |
52 | ||
8d063cd8 | 53 | #define FLUSH |
8d063cd8 | 54 | |
a0d0e21e LW |
55 | #ifdef LEAKTEST |
56 | static void xstat _((void)); | |
57 | #endif | |
58 | ||
a863c7d1 MB |
59 | #ifdef USE_THREADS |
60 | static U32 threadnum = 0; | |
61 | #endif /* USE_THREADS */ | |
62 | ||
55497cff | 63 | #ifndef MYMALLOC |
de3bb511 | 64 | |
8d063cd8 LW |
65 | /* paranoid version of malloc */ |
66 | ||
a687059c LW |
67 | /* NOTE: Do not call the next three routines directly. Use the macros |
68 | * in handy.h, so that we can easily redefine everything to do tracking of | |
69 | * allocated hunks back to the original New to track down any memory leaks. | |
20cec16a | 70 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c LW |
71 | */ |
72 | ||
bd4080b3 | 73 | Malloc_t |
8d063cd8 LW |
74 | safemalloc(size) |
75 | MEM_SIZE size; | |
76 | { | |
bd4080b3 | 77 | Malloc_t ptr; |
55497cff | 78 | #ifdef HAS_64K_LIMIT |
62b28dd9 | 79 | if (size > 0xffff) { |
760ac839 | 80 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 | 81 | my_exit(1); |
62b28dd9 | 82 | } |
55497cff | 83 | #endif /* HAS_64K_LIMIT */ |
34de22dd LW |
84 | #ifdef DEBUGGING |
85 | if ((long)size < 0) | |
463ee0b2 | 86 | croak("panic: malloc"); |
34de22dd | 87 | #endif |
8d063cd8 | 88 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 | 89 | #if !(defined(I286) || defined(atarist)) |
760ac839 | 90 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 | 91 | #else |
760ac839 | 92 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 LW |
93 | #endif |
94 | if (ptr != Nullch) | |
95 | return ptr; | |
7c0587c8 LW |
96 | else if (nomemok) |
97 | return Nullch; | |
8d063cd8 | 98 | else { |
760ac839 | 99 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 | 100 | my_exit(1); |
8d063cd8 LW |
101 | } |
102 | /*NOTREACHED*/ | |
103 | } | |
104 | ||
105 | /* paranoid version of realloc */ | |
106 | ||
bd4080b3 | 107 | Malloc_t |
8d063cd8 | 108 | saferealloc(where,size) |
bd4080b3 | 109 | Malloc_t where; |
8d063cd8 LW |
110 | MEM_SIZE size; |
111 | { | |
bd4080b3 | 112 | Malloc_t ptr; |
ecfc5424 | 113 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
bd4080b3 | 114 | Malloc_t realloc(); |
ecfc5424 | 115 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 | 116 | |
55497cff | 117 | #ifdef HAS_64K_LIMIT |
5f05dabc | 118 | if (size > 0xffff) { |
119 | PerlIO_printf(PerlIO_stderr(), | |
120 | "Reallocation too large: %lx\n", size) FLUSH; | |
121 | my_exit(1); | |
122 | } | |
55497cff | 123 | #endif /* HAS_64K_LIMIT */ |
378cc40b | 124 | if (!where) |
463ee0b2 | 125 | croak("Null realloc"); |
34de22dd LW |
126 | #ifdef DEBUGGING |
127 | if ((long)size < 0) | |
463ee0b2 | 128 | croak("panic: realloc"); |
34de22dd | 129 | #endif |
8d063cd8 | 130 | ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 LW |
131 | |
132 | #if !(defined(I286) || defined(atarist)) | |
133 | DEBUG_m( { | |
760ac839 LW |
134 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); |
135 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); | |
79072805 LW |
136 | } ) |
137 | #else | |
138 | DEBUG_m( { | |
760ac839 LW |
139 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); |
140 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); | |
79072805 | 141 | } ) |
8d063cd8 | 142 | #endif |
79072805 | 143 | |
8d063cd8 LW |
144 | if (ptr != Nullch) |
145 | return ptr; | |
7c0587c8 LW |
146 | else if (nomemok) |
147 | return Nullch; | |
8d063cd8 | 148 | else { |
760ac839 | 149 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 | 150 | my_exit(1); |
8d063cd8 LW |
151 | } |
152 | /*NOTREACHED*/ | |
153 | } | |
154 | ||
155 | /* safe version of free */ | |
156 | ||
54310121 | 157 | Free_t |
8d063cd8 | 158 | safefree(where) |
bd4080b3 | 159 | Malloc_t where; |
8d063cd8 | 160 | { |
79072805 | 161 | #if !(defined(I286) || defined(atarist)) |
760ac839 | 162 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++)); |
79072805 | 163 | #else |
760ac839 | 164 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++)); |
8d063cd8 | 165 | #endif |
378cc40b | 166 | if (where) { |
de3bb511 | 167 | /*SUPPRESS 701*/ |
378cc40b LW |
168 | free(where); |
169 | } | |
8d063cd8 LW |
170 | } |
171 | ||
1050c9ca | 172 | /* safe version of calloc */ |
173 | ||
bd4080b3 | 174 | Malloc_t |
1050c9ca | 175 | safecalloc(count, size) |
176 | MEM_SIZE count; | |
177 | MEM_SIZE size; | |
178 | { | |
bd4080b3 | 179 | Malloc_t ptr; |
1050c9ca | 180 | |
55497cff | 181 | #ifdef HAS_64K_LIMIT |
5f05dabc | 182 | if (size * count > 0xffff) { |
183 | PerlIO_printf(PerlIO_stderr(), | |
184 | "Allocation too large: %lx\n", size * count) FLUSH; | |
185 | my_exit(1); | |
186 | } | |
55497cff | 187 | #endif /* HAS_64K_LIMIT */ |
1050c9ca | 188 | #ifdef DEBUGGING |
189 | if ((long)size < 0 || (long)count < 0) | |
190 | croak("panic: calloc"); | |
191 | #endif | |
0b7c1c42 GS |
192 | size *= count; |
193 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ | |
1050c9ca | 194 | #if !(defined(I286) || defined(atarist)) |
fb73857a | 195 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca | 196 | #else |
fb73857a | 197 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca | 198 | #endif |
1050c9ca | 199 | if (ptr != Nullch) { |
200 | memset((void*)ptr, 0, size); | |
201 | return ptr; | |
202 | } | |
203 | else if (nomemok) | |
204 | return Nullch; | |
205 | else { | |
760ac839 | 206 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
1050c9ca | 207 | my_exit(1); |
208 | } | |
209 | /*NOTREACHED*/ | |
210 | } | |
211 | ||
55497cff | 212 | #endif /* !MYMALLOC */ |
de3bb511 | 213 | |
a687059c LW |
214 | #ifdef LEAKTEST |
215 | ||
216 | #define ALIGN sizeof(long) | |
8d063cd8 | 217 | |
bd4080b3 | 218 | Malloc_t |
a687059c | 219 | safexmalloc(x,size) |
79072805 | 220 | I32 x; |
a687059c | 221 | MEM_SIZE size; |
8d063cd8 | 222 | { |
bd4080b3 | 223 | register Malloc_t where; |
8d063cd8 | 224 | |
a687059c LW |
225 | where = safemalloc(size + ALIGN); |
226 | xcount[x]++; | |
227 | where[0] = x % 100; | |
228 | where[1] = x / 100; | |
229 | return where + ALIGN; | |
8d063cd8 | 230 | } |
8d063cd8 | 231 | |
bd4080b3 | 232 | Malloc_t |
a687059c | 233 | safexrealloc(where,size) |
bd4080b3 | 234 | Malloc_t where; |
a687059c LW |
235 | MEM_SIZE size; |
236 | { | |
bd4080b3 | 237 | register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN); |
a0d0e21e | 238 | return new + ALIGN; |
a687059c LW |
239 | } |
240 | ||
241 | void | |
242 | safexfree(where) | |
bd4080b3 | 243 | Malloc_t where; |
a687059c | 244 | { |
79072805 | 245 | I32 x; |
a687059c LW |
246 | |
247 | if (!where) | |
248 | return; | |
249 | where -= ALIGN; | |
250 | x = where[0] + 100 * where[1]; | |
251 | xcount[x]--; | |
252 | safefree(where); | |
253 | } | |
254 | ||
bd4080b3 | 255 | Malloc_t |
1050c9ca | 256 | safexcalloc(x,count,size) |
257 | I32 x; | |
258 | MEM_SIZE count; | |
259 | MEM_SIZE size; | |
260 | { | |
bd4080b3 | 261 | register Malloc_t where; |
1050c9ca | 262 | |
263 | where = safexmalloc(x, size * count + ALIGN); | |
264 | xcount[x]++; | |
265 | memset((void*)where + ALIGN, 0, size * count); | |
266 | where[0] = x % 100; | |
267 | where[1] = x / 100; | |
268 | return where + ALIGN; | |
269 | } | |
270 | ||
7c0587c8 | 271 | static void |
a687059c | 272 | xstat() |
8d063cd8 | 273 | { |
79072805 | 274 | register I32 i; |
8d063cd8 | 275 | |
a687059c | 276 | for (i = 0; i < MAXXCOUNT; i++) { |
de3bb511 | 277 | if (xcount[i] > lastxcount[i]) { |
760ac839 | 278 | PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]); |
a687059c | 279 | lastxcount[i] = xcount[i]; |
8d063cd8 LW |
280 | } |
281 | } | |
8d063cd8 | 282 | } |
a687059c LW |
283 | |
284 | #endif /* LEAKTEST */ | |
8d063cd8 LW |
285 | |
286 | /* copy a string up to some (non-backslashed) delimiter, if any */ | |
287 | ||
288 | char * | |
fc36a67e | 289 | delimcpy(to, toend, from, fromend, delim, retlen) |
62b28dd9 | 290 | register char *to; |
fc36a67e | 291 | register char *toend; |
62b28dd9 | 292 | register char *from; |
a687059c | 293 | register char *fromend; |
a0d0e21e | 294 | register int delim; |
79072805 | 295 | I32 *retlen; |
8d063cd8 | 296 | { |
fc36a67e | 297 | register I32 tolen; |
298 | for (tolen = 0; from < fromend; from++, tolen++) { | |
378cc40b LW |
299 | if (*from == '\\') { |
300 | if (from[1] == delim) | |
301 | from++; | |
fc36a67e | 302 | else { |
303 | if (to < toend) | |
304 | *to++ = *from; | |
305 | tolen++; | |
306 | from++; | |
307 | } | |
378cc40b | 308 | } |
bedebaa5 | 309 | else if (*from == delim) |
8d063cd8 | 310 | break; |
fc36a67e | 311 | if (to < toend) |
312 | *to++ = *from; | |
8d063cd8 | 313 | } |
bedebaa5 CS |
314 | if (to < toend) |
315 | *to = '\0'; | |
fc36a67e | 316 | *retlen = tolen; |
8d063cd8 LW |
317 | return from; |
318 | } | |
319 | ||
320 | /* return ptr to little string in big string, NULL if not found */ | |
378cc40b | 321 | /* This routine was donated by Corey Satten. */ |
8d063cd8 LW |
322 | |
323 | char * | |
324 | instr(big, little) | |
378cc40b LW |
325 | register char *big; |
326 | register char *little; | |
327 | { | |
328 | register char *s, *x; | |
79072805 | 329 | register I32 first; |
378cc40b | 330 | |
a687059c LW |
331 | if (!little) |
332 | return big; | |
333 | first = *little++; | |
378cc40b LW |
334 | if (!first) |
335 | return big; | |
336 | while (*big) { | |
337 | if (*big++ != first) | |
338 | continue; | |
339 | for (x=big,s=little; *s; /**/ ) { | |
340 | if (!*x) | |
341 | return Nullch; | |
342 | if (*s++ != *x++) { | |
343 | s--; | |
344 | break; | |
345 | } | |
346 | } | |
347 | if (!*s) | |
348 | return big-1; | |
349 | } | |
350 | return Nullch; | |
351 | } | |
8d063cd8 | 352 | |
a687059c LW |
353 | /* same as instr but allow embedded nulls */ |
354 | ||
355 | char * | |
356 | ninstr(big, bigend, little, lend) | |
357 | register char *big; | |
358 | register char *bigend; | |
359 | char *little; | |
360 | char *lend; | |
8d063cd8 | 361 | { |
a687059c | 362 | register char *s, *x; |
79072805 | 363 | register I32 first = *little; |
a687059c | 364 | register char *littleend = lend; |
378cc40b | 365 | |
a0d0e21e | 366 | if (!first && little >= littleend) |
a687059c | 367 | return big; |
de3bb511 LW |
368 | if (bigend - big < littleend - little) |
369 | return Nullch; | |
a687059c LW |
370 | bigend -= littleend - little++; |
371 | while (big <= bigend) { | |
372 | if (*big++ != first) | |
373 | continue; | |
374 | for (x=big,s=little; s < littleend; /**/ ) { | |
375 | if (*s++ != *x++) { | |
376 | s--; | |
377 | break; | |
378 | } | |
379 | } | |
380 | if (s >= littleend) | |
381 | return big-1; | |
378cc40b | 382 | } |
a687059c LW |
383 | return Nullch; |
384 | } | |
385 | ||
386 | /* reverse of the above--find last substring */ | |
387 | ||
388 | char * | |
389 | rninstr(big, bigend, little, lend) | |
390 | register char *big; | |
391 | char *bigend; | |
392 | char *little; | |
393 | char *lend; | |
394 | { | |
395 | register char *bigbeg; | |
396 | register char *s, *x; | |
79072805 | 397 | register I32 first = *little; |
a687059c LW |
398 | register char *littleend = lend; |
399 | ||
a0d0e21e | 400 | if (!first && little >= littleend) |
a687059c LW |
401 | return bigend; |
402 | bigbeg = big; | |
403 | big = bigend - (littleend - little++); | |
404 | while (big >= bigbeg) { | |
405 | if (*big-- != first) | |
406 | continue; | |
407 | for (x=big+2,s=little; s < littleend; /**/ ) { | |
408 | if (*s++ != *x++) { | |
409 | s--; | |
410 | break; | |
411 | } | |
412 | } | |
413 | if (s >= littleend) | |
414 | return big+1; | |
378cc40b | 415 | } |
a687059c | 416 | return Nullch; |
378cc40b | 417 | } |
a687059c | 418 | |
bbce6d69 | 419 | /* |
420 | * Set up for a new ctype locale. | |
421 | */ | |
55497cff | 422 | void |
bbce6d69 | 423 | perl_new_ctype(newctype) |
424 | char *newctype; | |
ef7eada9 | 425 | { |
36477c24 | 426 | #ifdef USE_LOCALE_CTYPE |
427 | ||
bbce6d69 | 428 | int i; |
ef7eada9 | 429 | |
bbce6d69 | 430 | for (i = 0; i < 256; i++) { |
431 | if (isUPPER_LC(i)) | |
432 | fold_locale[i] = toLOWER_LC(i); | |
433 | else if (isLOWER_LC(i)) | |
434 | fold_locale[i] = toUPPER_LC(i); | |
435 | else | |
436 | fold_locale[i] = i; | |
437 | } | |
bbce6d69 | 438 | |
36477c24 | 439 | #endif /* USE_LOCALE_CTYPE */ |
440 | } | |
bbce6d69 | 441 | |
442 | /* | |
443 | * Set up for a new collation locale. | |
444 | */ | |
445 | void | |
446 | perl_new_collate(newcoll) | |
447 | char *newcoll; | |
448 | { | |
36477c24 | 449 | #ifdef USE_LOCALE_COLLATE |
450 | ||
bbce6d69 | 451 | if (! newcoll) { |
452 | if (collation_name) { | |
453 | ++collation_ix; | |
454 | Safefree(collation_name); | |
455 | collation_name = NULL; | |
456 | collation_standard = TRUE; | |
bbce6d69 | 457 | collxfrm_base = 0; |
458 | collxfrm_mult = 2; | |
bbce6d69 | 459 | } |
460 | return; | |
461 | } | |
462 | ||
463 | if (! collation_name || strNE(collation_name, newcoll)) { | |
464 | ++collation_ix; | |
465 | Safefree(collation_name); | |
466 | collation_name = savepv(newcoll); | |
ff68c719 | 467 | collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
bbce6d69 | 468 | |
bbce6d69 | 469 | { |
470 | /* 2: at most so many chars ('a', 'b'). */ | |
471 | /* 50: surely no system expands a char more. */ | |
472 | #define XFRMBUFSIZE (2 * 50) | |
473 | char xbuf[XFRMBUFSIZE]; | |
474 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); | |
475 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
476 | SSize_t mult = fb - fa; | |
477 | if (mult < 1) | |
478 | croak("strxfrm() gets absurd"); | |
479 | collxfrm_base = (fa > mult) ? (fa - mult) : 0; | |
480 | collxfrm_mult = mult; | |
481 | } | |
bbce6d69 | 482 | } |
bbce6d69 | 483 | |
36477c24 | 484 | #endif /* USE_LOCALE_COLLATE */ |
485 | } | |
bbce6d69 | 486 | |
487 | /* | |
488 | * Set up for a new numeric locale. | |
489 | */ | |
490 | void | |
491 | perl_new_numeric(newnum) | |
492 | char *newnum; | |
493 | { | |
36477c24 | 494 | #ifdef USE_LOCALE_NUMERIC |
495 | ||
bbce6d69 | 496 | if (! newnum) { |
497 | if (numeric_name) { | |
498 | Safefree(numeric_name); | |
499 | numeric_name = NULL; | |
500 | numeric_standard = TRUE; | |
501 | numeric_local = TRUE; | |
502 | } | |
503 | return; | |
504 | } | |
505 | ||
506 | if (! numeric_name || strNE(numeric_name, newnum)) { | |
507 | Safefree(numeric_name); | |
508 | numeric_name = savepv(newnum); | |
ff68c719 | 509 | numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
bbce6d69 | 510 | numeric_local = TRUE; |
511 | } | |
36477c24 | 512 | |
513 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 514 | } |
515 | ||
516 | void | |
36477c24 | 517 | perl_set_numeric_standard() |
bbce6d69 | 518 | { |
5f05dabc | 519 | #ifdef USE_LOCALE_NUMERIC |
520 | ||
bbce6d69 | 521 | if (! numeric_standard) { |
522 | setlocale(LC_NUMERIC, "C"); | |
523 | numeric_standard = TRUE; | |
524 | numeric_local = FALSE; | |
525 | } | |
5f05dabc | 526 | |
527 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 528 | } |
529 | ||
530 | void | |
36477c24 | 531 | perl_set_numeric_local() |
bbce6d69 | 532 | { |
5f05dabc | 533 | #ifdef USE_LOCALE_NUMERIC |
534 | ||
bbce6d69 | 535 | if (! numeric_local) { |
536 | setlocale(LC_NUMERIC, numeric_name); | |
537 | numeric_standard = FALSE; | |
538 | numeric_local = TRUE; | |
539 | } | |
bbce6d69 | 540 | |
36477c24 | 541 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 542 | } |
36477c24 | 543 | |
bbce6d69 | 544 | |
36477c24 | 545 | /* |
546 | * Initialize locale awareness. | |
547 | */ | |
f0c5b223 | 548 | int |
1050c9ca | 549 | perl_init_i18nl10n(printwarn) |
f0c5b223 TB |
550 | int printwarn; |
551 | { | |
552 | int ok = 1; | |
553 | /* returns | |
554 | * 1 = set ok or not applicable, | |
555 | * 0 = fallback to C locale, | |
556 | * -1 = fallback to C locale failed | |
557 | */ | |
bbce6d69 | 558 | |
36477c24 | 559 | #ifdef USE_LOCALE |
bbce6d69 | 560 | |
36477c24 | 561 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 562 | char *curctype = NULL; |
36477c24 | 563 | #endif /* USE_LOCALE_CTYPE */ |
564 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 565 | char *curcoll = NULL; |
36477c24 | 566 | #endif /* USE_LOCALE_COLLATE */ |
567 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 568 | char *curnum = NULL; |
36477c24 | 569 | #endif /* USE_LOCALE_NUMERIC */ |
02b32252 | 570 | char *lc_all = getenv("LC_ALL"); |
5f05dabc | 571 | char *lang = getenv("LANG"); |
bbce6d69 | 572 | bool setlocale_failure = FALSE; |
f0c5b223 | 573 | |
02b32252 CS |
574 | #ifdef LOCALE_ENVIRON_REQUIRED |
575 | ||
576 | /* | |
577 | * Ultrix setlocale(..., "") fails if there are no environment | |
578 | * variables from which to get a locale name. | |
579 | */ | |
580 | ||
581 | bool done = FALSE; | |
582 | ||
583 | #ifdef LC_ALL | |
584 | if (lang) { | |
585 | if (setlocale(LC_ALL, "")) | |
586 | done = TRUE; | |
587 | else | |
588 | setlocale_failure = TRUE; | |
589 | } | |
590 | if (!setlocale_failure) | |
591 | #endif /* LC_ALL */ | |
592 | { | |
593 | #ifdef USE_LOCALE_CTYPE | |
594 | if (! (curctype = setlocale(LC_CTYPE, | |
595 | (!done && (lang || getenv("LC_CTYPE"))) | |
596 | ? "" : Nullch))) | |
597 | setlocale_failure = TRUE; | |
598 | #endif /* USE_LOCALE_CTYPE */ | |
599 | #ifdef USE_LOCALE_COLLATE | |
600 | if (! (curcoll = setlocale(LC_COLLATE, | |
601 | (!done && (lang || getenv("LC_COLLATE"))) | |
602 | ? "" : Nullch))) | |
603 | setlocale_failure = TRUE; | |
604 | #endif /* USE_LOCALE_COLLATE */ | |
605 | #ifdef USE_LOCALE_NUMERIC | |
606 | if (! (curnum = setlocale(LC_NUMERIC, | |
607 | (!done && (lang || getenv("LC_NUMERIC"))) | |
608 | ? "" : Nullch))) | |
609 | setlocale_failure = TRUE; | |
610 | #endif /* USE_LOCALE_NUMERIC */ | |
611 | } | |
612 | ||
613 | #else /* !LOCALE_ENVIRON_REQUIRED */ | |
614 | ||
bbce6d69 | 615 | #ifdef LC_ALL |
5f05dabc | 616 | |
bbce6d69 | 617 | if (! setlocale(LC_ALL, "")) |
618 | setlocale_failure = TRUE; | |
5f05dabc | 619 | else { |
620 | #ifdef USE_LOCALE_CTYPE | |
621 | curctype = setlocale(LC_CTYPE, Nullch); | |
622 | #endif /* USE_LOCALE_CTYPE */ | |
623 | #ifdef USE_LOCALE_COLLATE | |
624 | curcoll = setlocale(LC_COLLATE, Nullch); | |
625 | #endif /* USE_LOCALE_COLLATE */ | |
626 | #ifdef USE_LOCALE_NUMERIC | |
627 | curnum = setlocale(LC_NUMERIC, Nullch); | |
628 | #endif /* USE_LOCALE_NUMERIC */ | |
629 | } | |
630 | ||
631 | #else /* !LC_ALL */ | |
bbce6d69 | 632 | |
36477c24 | 633 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 634 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
bbce6d69 | 635 | setlocale_failure = TRUE; |
36477c24 | 636 | #endif /* USE_LOCALE_CTYPE */ |
637 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 638 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
bbce6d69 | 639 | setlocale_failure = TRUE; |
36477c24 | 640 | #endif /* USE_LOCALE_COLLATE */ |
641 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 642 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
bbce6d69 | 643 | setlocale_failure = TRUE; |
36477c24 | 644 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 645 | |
5f05dabc | 646 | #endif /* LC_ALL */ |
647 | ||
02b32252 CS |
648 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
649 | ||
5f05dabc | 650 | if (setlocale_failure) { |
651 | char *p; | |
652 | bool locwarn = (printwarn > 1 || | |
653 | printwarn && | |
654 | (!(p = getenv("PERL_BADLANG")) || atoi(p))); | |
20cec16a | 655 | |
5f05dabc | 656 | if (locwarn) { |
657 | #ifdef LC_ALL | |
658 | ||
659 | PerlIO_printf(PerlIO_stderr(), | |
660 | "perl: warning: Setting locale failed.\n"); | |
661 | ||
662 | #else /* !LC_ALL */ | |
663 | ||
ef7eada9 | 664 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 665 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 | 666 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 667 | if (! curctype) |
5f05dabc | 668 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 | 669 | #endif /* USE_LOCALE_CTYPE */ |
670 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 671 | if (! curcoll) |
5f05dabc | 672 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 | 673 | #endif /* USE_LOCALE_COLLATE */ |
674 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 675 | if (! curnum) |
5f05dabc | 676 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 | 677 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 678 | PerlIO_printf(PerlIO_stderr(), "\n"); |
679 | ||
5f05dabc | 680 | #endif /* LC_ALL */ |
681 | ||
760ac839 | 682 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 683 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 JH |
684 | |
685 | PerlIO_printf(PerlIO_stderr(), | |
bbce6d69 | 686 | "\tLC_ALL = %c%s%c,\n", |
687 | lc_all ? '"' : '(', | |
688 | lc_all ? lc_all : "unset", | |
689 | lc_all ? '"' : ')'); | |
5f05dabc | 690 | |
691 | { | |
692 | char **e; | |
693 | for (e = environ; *e; e++) { | |
694 | if (strnEQ(*e, "LC_", 3) | |
695 | && strnNE(*e, "LC_ALL=", 7) | |
696 | && (p = strchr(*e, '='))) | |
697 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", | |
fb73857a | 698 | (int)(p - *e), *e, p + 1); |
5f05dabc | 699 | } |
700 | } | |
701 | ||
ef7eada9 | 702 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 703 | "\tLANG = %c%s%c\n", |
5f05dabc | 704 | lang ? '"' : '(', |
bbce6d69 | 705 | lang ? lang : "unset", |
706 | lang ? '"' : ')'); | |
ef7eada9 | 707 | |
bbce6d69 | 708 | PerlIO_printf(PerlIO_stderr(), |
709 | " are supported and installed on your system.\n"); | |
5f05dabc | 710 | } |
ef7eada9 | 711 | |
5f05dabc | 712 | #ifdef LC_ALL |
713 | ||
714 | if (setlocale(LC_ALL, "C")) { | |
715 | if (locwarn) | |
716 | PerlIO_printf(PerlIO_stderr(), | |
717 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
bbce6d69 | 718 | ok = 0; |
ef7eada9 | 719 | } |
5f05dabc | 720 | else { |
721 | if (locwarn) | |
722 | PerlIO_printf(PerlIO_stderr(), | |
723 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
724 | ok = -1; | |
725 | } | |
bbce6d69 | 726 | |
5f05dabc | 727 | #else /* ! LC_ALL */ |
728 | ||
729 | if (0 | |
36477c24 | 730 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 731 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 | 732 | #endif /* USE_LOCALE_CTYPE */ |
733 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 734 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 | 735 | #endif /* USE_LOCALE_COLLATE */ |
736 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 737 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 | 738 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 739 | ) |
740 | { | |
741 | if (locwarn) | |
bbce6d69 | 742 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc | 743 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
744 | ok = -1; | |
bbce6d69 | 745 | } |
5f05dabc | 746 | |
bbce6d69 | 747 | #endif /* ! LC_ALL */ |
5f05dabc | 748 | |
749 | #ifdef USE_LOCALE_CTYPE | |
750 | curctype = setlocale(LC_CTYPE, Nullch); | |
751 | #endif /* USE_LOCALE_CTYPE */ | |
752 | #ifdef USE_LOCALE_COLLATE | |
753 | curcoll = setlocale(LC_COLLATE, Nullch); | |
754 | #endif /* USE_LOCALE_COLLATE */ | |
755 | #ifdef USE_LOCALE_NUMERIC | |
756 | curnum = setlocale(LC_NUMERIC, Nullch); | |
757 | #endif /* USE_LOCALE_NUMERIC */ | |
ef7eada9 JH |
758 | } |
759 | ||
36477c24 | 760 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 761 | perl_new_ctype(curctype); |
36477c24 | 762 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 | 763 | |
36477c24 | 764 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 765 | perl_new_collate(curcoll); |
36477c24 | 766 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 767 | |
36477c24 | 768 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 | 769 | perl_new_numeric(curnum); |
36477c24 | 770 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 | 771 | |
36477c24 | 772 | #endif /* USE_LOCALE */ |
ef7eada9 | 773 | |
f0c5b223 TB |
774 | return ok; |
775 | } | |
776 | ||
bbce6d69 | 777 | /* Backwards compatibility. */ |
778 | int | |
779 | perl_init_i18nl14n(printwarn) | |
780 | int printwarn; | |
781 | { | |
5f05dabc | 782 | return perl_init_i18nl10n(printwarn); |
bbce6d69 | 783 | } |
ef7eada9 | 784 | |
36477c24 | 785 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 | 786 | |
bbce6d69 | 787 | /* |
788 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
789 | * differences. First, it handles embedded NULs. Second, it allocates | |
790 | * a bit more memory than needed for the transformed data itself. | |
791 | * The real transformed data begins at offset sizeof(collationix). | |
792 | * Please see sv_collxfrm() to see how this is used. | |
793 | */ | |
794 | char * | |
795 | mem_collxfrm(s, len, xlen) | |
796 | const char *s; | |
797 | STRLEN len; | |
798 | STRLEN *xlen; | |
799 | { | |
800 | char *xbuf; | |
801 | STRLEN xalloc, xin, xout; | |
802 | ||
803 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ | |
804 | /* the +1 is for the terminating NUL. */ | |
805 | ||
806 | xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; | |
807 | New(171, xbuf, xalloc, char); | |
808 | if (! xbuf) | |
809 | goto bad; | |
810 | ||
811 | *(U32*)xbuf = collation_ix; | |
812 | xout = sizeof(collation_ix); | |
813 | for (xin = 0; xin < len; ) { | |
814 | SSize_t xused; | |
815 | ||
816 | for (;;) { | |
817 | xused = strxfrm(xbuf + xout, s + xin, xalloc - xout); | |
818 | if (xused == -1) | |
819 | goto bad; | |
820 | if (xused < xalloc - xout) | |
821 | break; | |
822 | xalloc = (2 * xalloc) + 1; | |
823 | Renew(xbuf, xalloc, char); | |
824 | if (! xbuf) | |
825 | goto bad; | |
826 | } | |
ef7eada9 | 827 | |
bbce6d69 | 828 | xin += strlen(s + xin) + 1; |
829 | xout += xused; | |
830 | ||
831 | /* Embedded NULs are understood but silently skipped | |
832 | * because they make no sense in locale collation. */ | |
833 | } | |
ef7eada9 | 834 | |
bbce6d69 | 835 | xbuf[xout] = '\0'; |
836 | *xlen = xout - sizeof(collation_ix); | |
837 | return xbuf; | |
838 | ||
839 | bad: | |
840 | Safefree(xbuf); | |
841 | *xlen = 0; | |
842 | return NULL; | |
ef7eada9 JH |
843 | } |
844 | ||
36477c24 | 845 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 846 | |
378cc40b | 847 | void |
bbce6d69 | 848 | fbm_compile(sv) |
79072805 | 849 | SV *sv; |
378cc40b | 850 | { |
a687059c LW |
851 | register unsigned char *s; |
852 | register unsigned char *table; | |
79072805 LW |
853 | register U32 i; |
854 | register U32 len = SvCUR(sv); | |
855 | I32 rarest = 0; | |
856 | U32 frequency = 256; | |
857 | ||
748a9306 LW |
858 | if (len > 255) |
859 | return; /* can't have offsets that big */ | |
79072805 | 860 | Sv_Grow(sv,len+258); |
463ee0b2 | 861 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c LW |
862 | s = table - 2; |
863 | for (i = 0; i < 256; i++) { | |
378cc40b LW |
864 | table[i] = len; |
865 | } | |
866 | i = 0; | |
463ee0b2 | 867 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c | 868 | { |
bbce6d69 | 869 | if (table[*s] == len) |
870 | table[*s] = i; | |
378cc40b LW |
871 | s--,i++; |
872 | } | |
79072805 | 873 | sv_upgrade(sv, SVt_PVBM); |
bbce6d69 | 874 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 | 875 | SvVALID_on(sv); |
378cc40b | 876 | |
463ee0b2 | 877 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 | 878 | for (i = 0; i < len; i++) { |
879 | if (freq[s[i]] < frequency) { | |
880 | rarest = i; | |
881 | frequency = freq[s[i]]; | |
378cc40b LW |
882 | } |
883 | } | |
79072805 LW |
884 | BmRARE(sv) = s[rarest]; |
885 | BmPREVIOUS(sv) = rarest; | |
760ac839 | 886 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b LW |
887 | } |
888 | ||
378cc40b | 889 | char * |
79072805 | 890 | fbm_instr(big, bigend, littlestr) |
a687059c LW |
891 | unsigned char *big; |
892 | register unsigned char *bigend; | |
79072805 | 893 | SV *littlestr; |
378cc40b | 894 | { |
a687059c | 895 | register unsigned char *s; |
79072805 LW |
896 | register I32 tmp; |
897 | register I32 littlelen; | |
a687059c LW |
898 | register unsigned char *little; |
899 | register unsigned char *table; | |
900 | register unsigned char *olds; | |
901 | register unsigned char *oldlittle; | |
378cc40b | 902 | |
79072805 | 903 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e LW |
904 | STRLEN len; |
905 | char *l = SvPV(littlestr,len); | |
906 | if (!len) | |
d48672a2 | 907 | return (char*)big; |
a0d0e21e | 908 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 | 909 | } |
378cc40b | 910 | |
79072805 LW |
911 | littlelen = SvCUR(littlestr); |
912 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ | |
0f85fab0 LW |
913 | if (littlelen > bigend - big) |
914 | return Nullch; | |
463ee0b2 | 915 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 | 916 | s = bigend - littlelen; |
36477c24 | 917 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 | 918 | return (char*)s; /* how sweet it is */ |
919 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' | |
920 | && s > big) { | |
921 | s--; | |
36477c24 | 922 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 | 923 | return (char*)s; |
a687059c | 924 | } |
bbce6d69 | 925 | return Nullch; |
a687059c | 926 | } |
463ee0b2 | 927 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 LW |
928 | if (--littlelen >= bigend - big) |
929 | return Nullch; | |
930 | s = big + littlelen; | |
a687059c | 931 | oldlittle = little = table - 2; |
bbce6d69 | 932 | if (s < bigend) { |
933 | top2: | |
934 | /*SUPPRESS 560*/ | |
935 | if (tmp = table[*s]) { | |
62b28dd9 | 936 | #ifdef POINTERRIGOR |
bbce6d69 | 937 | if (bigend - s > tmp) { |
938 | s += tmp; | |
939 | goto top2; | |
940 | } | |
62b28dd9 | 941 | #else |
bbce6d69 | 942 | if ((s += tmp) < bigend) |
943 | goto top2; | |
62b28dd9 | 944 | #endif |
bbce6d69 | 945 | return Nullch; |
a687059c | 946 | } |
bbce6d69 | 947 | else { |
948 | tmp = littlelen; /* less expensive than calling strncmp() */ | |
949 | olds = s; | |
950 | while (tmp--) { | |
951 | if (*--s == *--little) | |
952 | continue; | |
953 | s = olds + 1; /* here we pay the price for failure */ | |
954 | little = oldlittle; | |
955 | if (s < bigend) /* fake up continue to outer loop */ | |
62b28dd9 | 956 | goto top2; |
62b28dd9 | 957 | return Nullch; |
a687059c | 958 | } |
bbce6d69 | 959 | return (char *)s; |
378cc40b LW |
960 | } |
961 | } | |
962 | return Nullch; | |
963 | } | |
964 | ||
965 | char * | |
966 | screaminstr(bigstr, littlestr) | |
79072805 LW |
967 | SV *bigstr; |
968 | SV *littlestr; | |
378cc40b | 969 | { |
a687059c LW |
970 | register unsigned char *s, *x; |
971 | register unsigned char *big; | |
79072805 LW |
972 | register I32 pos; |
973 | register I32 previous; | |
974 | register I32 first; | |
a687059c LW |
975 | register unsigned char *little; |
976 | register unsigned char *bigend; | |
977 | register unsigned char *littleend; | |
378cc40b | 978 | |
79072805 | 979 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b | 980 | return Nullch; |
463ee0b2 | 981 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 | 982 | littleend = little + SvCUR(littlestr); |
378cc40b | 983 | first = *little++; |
79072805 | 984 | previous = BmPREVIOUS(littlestr); |
463ee0b2 | 985 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 | 986 | bigend = big + SvCUR(bigstr); |
378cc40b LW |
987 | while (pos < previous) { |
988 | if (!(pos += screamnext[pos])) | |
989 | return Nullch; | |
990 | } | |
de3bb511 | 991 | #ifdef POINTERRIGOR |
bbce6d69 | 992 | do { |
993 | if (big[pos-previous] != first) | |
994 | continue; | |
995 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { | |
996 | if (x >= bigend) | |
997 | return Nullch; | |
998 | if (*s++ != *x++) { | |
999 | s--; | |
1000 | break; | |
de3bb511 | 1001 | } |
bbce6d69 | 1002 | } |
1003 | if (s == littleend) | |
1004 | return (char *)(big+pos-previous); | |
1005 | } while ( pos += screamnext[pos] ); | |
de3bb511 LW |
1006 | #else /* !POINTERRIGOR */ |
1007 | big -= previous; | |
bbce6d69 | 1008 | do { |
1009 | if (big[pos] != first) | |
1010 | continue; | |
1011 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { | |
1012 | if (x >= bigend) | |
1013 | return Nullch; | |
1014 | if (*s++ != *x++) { | |
1015 | s--; | |
1016 | break; | |
378cc40b | 1017 | } |
bbce6d69 | 1018 | } |
1019 | if (s == littleend) | |
1020 | return (char *)(big+pos); | |
1021 | } while ( pos += screamnext[pos] ); | |
de3bb511 | 1022 | #endif /* POINTERRIGOR */ |
8d063cd8 LW |
1023 | return Nullch; |
1024 | } | |
1025 | ||
79072805 | 1026 | I32 |
bbce6d69 | 1027 | ibcmp(s1, s2, len) |
1028 | char *s1, *s2; | |
79072805 LW |
1029 | register I32 len; |
1030 | { | |
bbce6d69 | 1031 | register U8 *a = (U8 *)s1; |
1032 | register U8 *b = (U8 *)s2; | |
79072805 | 1033 | while (len--) { |
bbce6d69 | 1034 | if (*a != *b && *a != fold[*b]) |
1035 | return 1; | |
1036 | a++,b++; | |
1037 | } | |
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | I32 | |
1042 | ibcmp_locale(s1, s2, len) | |
1043 | char *s1, *s2; | |
1044 | register I32 len; | |
1045 | { | |
1046 | register U8 *a = (U8 *)s1; | |
1047 | register U8 *b = (U8 *)s2; | |
1048 | while (len--) { | |
1049 | if (*a != *b && *a != fold_locale[*b]) | |
1050 | return 1; | |
1051 | a++,b++; | |
79072805 LW |
1052 | } |
1053 | return 0; | |
1054 | } | |
1055 | ||
8d063cd8 LW |
1056 | /* copy a string to a safe spot */ |
1057 | ||
1058 | char * | |
a0d0e21e | 1059 | savepv(sv) |
79072805 | 1060 | char *sv; |
8d063cd8 | 1061 | { |
a687059c | 1062 | register char *newaddr; |
8d063cd8 | 1063 | |
79072805 LW |
1064 | New(902,newaddr,strlen(sv)+1,char); |
1065 | (void)strcpy(newaddr,sv); | |
8d063cd8 LW |
1066 | return newaddr; |
1067 | } | |
1068 | ||
a687059c LW |
1069 | /* same thing but with a known length */ |
1070 | ||
1071 | char * | |
a0d0e21e | 1072 | savepvn(sv, len) |
79072805 LW |
1073 | char *sv; |
1074 | register I32 len; | |
a687059c LW |
1075 | { |
1076 | register char *newaddr; | |
1077 | ||
1078 | New(903,newaddr,len+1,char); | |
79072805 | 1079 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c LW |
1080 | newaddr[len] = '\0'; /* is now */ |
1081 | return newaddr; | |
1082 | } | |
1083 | ||
fc36a67e | 1084 | /* the SV for form() and mess() is not kept in an arena */ |
1085 | ||
1086 | static SV * | |
1087 | mess_alloc() | |
1088 | { | |
1089 | SV *sv; | |
1090 | XPVMG *any; | |
1091 | ||
1092 | /* Create as PVMG now, to avoid any upgrading later */ | |
1093 | New(905, sv, 1, SV); | |
1094 | Newz(905, any, 1, XPVMG); | |
1095 | SvFLAGS(sv) = SVt_PVMG; | |
1096 | SvANY(sv) = (void*)any; | |
1097 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ | |
1098 | return sv; | |
1099 | } | |
1100 | ||
a0d0e21e | 1101 | #ifdef I_STDARG |
8990e307 | 1102 | char * |
46fc3d4c | 1103 | form(const char* pat, ...) |
a687059c LW |
1104 | #else |
1105 | /*VARARGS0*/ | |
de3bb511 | 1106 | char * |
46fc3d4c | 1107 | form(pat, va_alist) |
71be2cbc | 1108 | const char *pat; |
46fc3d4c | 1109 | va_dcl |
8990e307 LW |
1110 | #endif |
1111 | { | |
46fc3d4c | 1112 | va_list args; |
1113 | #ifdef I_STDARG | |
1114 | va_start(args, pat); | |
a687059c | 1115 | #else |
46fc3d4c | 1116 | va_start(args); |
d48672a2 | 1117 | #endif |
fc36a67e | 1118 | if (!mess_sv) |
1119 | mess_sv = mess_alloc(); | |
1120 | sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); | |
46fc3d4c | 1121 | va_end(args); |
fc36a67e | 1122 | return SvPVX(mess_sv); |
46fc3d4c | 1123 | } |
a687059c | 1124 | |
46fc3d4c | 1125 | char * |
1126 | mess(pat, args) | |
1127 | const char *pat; | |
1128 | va_list *args; | |
1129 | { | |
1130 | SV *sv; | |
1131 | static char dgd[] = " during global destruction.\n"; | |
1132 | ||
46fc3d4c | 1133 | if (!mess_sv) |
fc36a67e | 1134 | mess_sv = mess_alloc(); |
46fc3d4c | 1135 | sv = mess_sv; |
fc36a67e | 1136 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1137 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 | 1138 | dTHR; |
2304df62 | 1139 | if (dirty) |
46fc3d4c | 1140 | sv_catpv(sv, dgd); |
2304df62 | 1141 | else { |
46fc3d4c | 1142 | if (curcop->cop_line) |
fc36a67e | 1143 | sv_catpvf(sv, " at %_ line %ld", |
46fc3d4c | 1144 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
c07a80fd | 1145 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1146 | bool line_mode = (RsSIMPLE(rs) && | |
1147 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); | |
46fc3d4c | 1148 | sv_catpvf(sv, ", <%s> %s %ld", |
1149 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), | |
1150 | line_mode ? "line" : "chunk", | |
1151 | (long)IoLINES(GvIOp(last_in_gv))); | |
2304df62 | 1152 | } |
46fc3d4c | 1153 | sv_catpv(sv, ".\n"); |
a687059c | 1154 | } |
a687059c | 1155 | } |
46fc3d4c | 1156 | return SvPVX(sv); |
a687059c LW |
1157 | } |
1158 | ||
ecfc5424 | 1159 | #ifdef I_STDARG |
36477c24 | 1160 | OP * |
71be2cbc | 1161 | die(const char* pat, ...) |
36477c24 | 1162 | #else |
1163 | /*VARARGS0*/ | |
1164 | OP * | |
1165 | die(pat, va_alist) | |
71be2cbc | 1166 | const char *pat; |
36477c24 | 1167 | va_dcl |
1168 | #endif | |
1169 | { | |
5dc0d613 | 1170 | dTHR; |
36477c24 | 1171 | va_list args; |
1172 | char *message; | |
035902c7 | 1173 | I32 oldrunlevel = runlevel; |
36477c24 | 1174 | int was_in_eval = in_eval; |
1175 | HV *stash; | |
1176 | GV *gv; | |
1177 | CV *cv; | |
1178 | ||
57d3b86d | 1179 | #ifdef USE_THREADS |
199100c8 MB |
1180 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1181 | "%p: die: curstack = %p, mainstack = %p\n", | |
1182 | thr, curstack, mainstack)); | |
57d3b86d | 1183 | #endif /* USE_THREADS */ |
36477c24 | 1184 | /* We have to switch back to mainstack or die_where may try to pop |
1185 | * the eval block from the wrong stack if die is being called from a | |
1186 | * signal handler. - dkindred@cs.cmu.edu */ | |
1187 | if (curstack != mainstack) { | |
1188 | dSP; | |
1189 | SWITCHSTACK(curstack, mainstack); | |
1190 | } | |
1191 | ||
1192 | #ifdef I_STDARG | |
1193 | va_start(args, pat); | |
1194 | #else | |
1195 | va_start(args); | |
1196 | #endif | |
1197 | message = mess(pat, &args); | |
1198 | va_end(args); | |
1199 | ||
57d3b86d | 1200 | #ifdef USE_THREADS |
199100c8 MB |
1201 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1202 | "%p: die: message = %s\ndiehook = %p\n", | |
1203 | thr, message, diehook)); | |
57d3b86d | 1204 | #endif /* USE_THREADS */ |
1738f5c4 CS |
1205 | if (diehook) { |
1206 | /* sv_2cv might call croak() */ | |
1207 | SV *olddiehook = diehook; | |
1208 | ENTER; | |
1209 | SAVESPTR(diehook); | |
1210 | diehook = Nullsv; | |
1211 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1212 | LEAVE; | |
1213 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1214 | dSP; | |
774d564b | 1215 | SV *msg; |
1216 | ||
1217 | ENTER; | |
1218 | msg = newSVpv(message, 0); | |
1219 | SvREADONLY_on(msg); | |
1220 | SAVEFREESV(msg); | |
1738f5c4 CS |
1221 | |
1222 | PUSHMARK(sp); | |
1223 | XPUSHs(msg); | |
1224 | PUTBACK; | |
1225 | perl_call_sv((SV*)cv, G_DISCARD); | |
1226 | ||
774d564b | 1227 | LEAVE; |
1738f5c4 | 1228 | } |
36477c24 | 1229 | } |
1230 | ||
1231 | restartop = die_where(message); | |
57d3b86d | 1232 | #ifdef USE_THREADS |
d9f997d7 | 1233 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
199100c8 MB |
1234 | "%p: die: restartop = %p, was_in_eval = %d, oldrunlevel = %d\n", |
1235 | thr, restartop, was_in_eval, oldrunlevel)); | |
57d3b86d | 1236 | #endif /* USE_THREADS */ |
36477c24 | 1237 | if ((!restartop && was_in_eval) || oldrunlevel > 1) |
54310121 | 1238 | JMPENV_JUMP(3); |
36477c24 | 1239 | return restartop; |
1240 | } | |
1241 | ||
1242 | #ifdef I_STDARG | |
79072805 | 1243 | void |
71be2cbc | 1244 | croak(const char* pat, ...) |
463ee0b2 | 1245 | #else |
8990e307 LW |
1246 | /*VARARGS0*/ |
1247 | void | |
1248 | croak(pat, va_alist) | |
1249 | char *pat; | |
1250 | va_dcl | |
463ee0b2 | 1251 | #endif |
a687059c | 1252 | { |
11343788 | 1253 | dTHR; |
a687059c | 1254 | va_list args; |
de3bb511 | 1255 | char *message; |
748a9306 LW |
1256 | HV *stash; |
1257 | GV *gv; | |
1258 | CV *cv; | |
a687059c | 1259 | |
a0d0e21e | 1260 | #ifdef I_STDARG |
8990e307 LW |
1261 | va_start(args, pat); |
1262 | #else | |
a687059c | 1263 | va_start(args); |
8990e307 | 1264 | #endif |
2304df62 | 1265 | message = mess(pat, &args); |
a687059c | 1266 | va_end(args); |
11343788 | 1267 | #ifdef USE_THREADS |
d9f997d7 | 1268 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
11343788 | 1269 | #endif /* USE_THREADS */ |
20cec16a | 1270 | if (diehook) { |
1738f5c4 | 1271 | /* sv_2cv might call croak() */ |
20cec16a | 1272 | SV *olddiehook = diehook; |
1738f5c4 CS |
1273 | ENTER; |
1274 | SAVESPTR(diehook); | |
1275 | diehook = Nullsv; | |
20cec16a | 1276 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 CS |
1277 | LEAVE; |
1278 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1279 | dSP; |
774d564b | 1280 | SV *msg; |
1281 | ||
1282 | ENTER; | |
1283 | msg = newSVpv(message, 0); | |
1284 | SvREADONLY_on(msg); | |
1285 | SAVEFREESV(msg); | |
20cec16a | 1286 | |
1287 | PUSHMARK(sp); | |
1738f5c4 | 1288 | XPUSHs(msg); |
20cec16a | 1289 | PUTBACK; |
1290 | perl_call_sv((SV*)cv, G_DISCARD); | |
36477c24 | 1291 | |
774d564b | 1292 | LEAVE; |
20cec16a | 1293 | } |
748a9306 | 1294 | } |
a0d0e21e LW |
1295 | if (in_eval) { |
1296 | restartop = die_where(message); | |
54310121 | 1297 | JMPENV_JUMP(3); |
a0d0e21e | 1298 | } |
760ac839 LW |
1299 | PerlIO_puts(PerlIO_stderr(),message); |
1300 | (void)PerlIO_flush(PerlIO_stderr()); | |
f86702cc | 1301 | my_failure_exit(); |
a687059c LW |
1302 | } |
1303 | ||
8990e307 | 1304 | void |
ecfc5424 | 1305 | #ifdef I_STDARG |
71be2cbc | 1306 | warn(const char* pat,...) |
463ee0b2 | 1307 | #else |
8990e307 LW |
1308 | /*VARARGS0*/ |
1309 | warn(pat,va_alist) | |
71be2cbc | 1310 | const char *pat; |
8990e307 | 1311 | va_dcl |
463ee0b2 | 1312 | #endif |
a687059c LW |
1313 | { |
1314 | va_list args; | |
de3bb511 | 1315 | char *message; |
748a9306 LW |
1316 | HV *stash; |
1317 | GV *gv; | |
1318 | CV *cv; | |
a687059c | 1319 | |
a0d0e21e | 1320 | #ifdef I_STDARG |
8990e307 LW |
1321 | va_start(args, pat); |
1322 | #else | |
a687059c | 1323 | va_start(args); |
8990e307 | 1324 | #endif |
2304df62 | 1325 | message = mess(pat, &args); |
a687059c LW |
1326 | va_end(args); |
1327 | ||
20cec16a | 1328 | if (warnhook) { |
1738f5c4 | 1329 | /* sv_2cv might call warn() */ |
11343788 | 1330 | dTHR; |
20cec16a | 1331 | SV *oldwarnhook = warnhook; |
1738f5c4 CS |
1332 | ENTER; |
1333 | SAVESPTR(warnhook); | |
1334 | warnhook = Nullsv; | |
20cec16a | 1335 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 CS |
1336 | LEAVE; |
1337 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1338 | dSP; |
774d564b | 1339 | SV *msg; |
1340 | ||
1341 | ENTER; | |
1342 | msg = newSVpv(message, 0); | |
1343 | SvREADONLY_on(msg); | |
1344 | SAVEFREESV(msg); | |
1345 | ||
20cec16a | 1346 | PUSHMARK(sp); |
774d564b | 1347 | XPUSHs(msg); |
20cec16a | 1348 | PUTBACK; |
1349 | perl_call_sv((SV*)cv, G_DISCARD); | |
774d564b | 1350 | |
1351 | LEAVE; | |
20cec16a | 1352 | return; |
1353 | } | |
748a9306 | 1354 | } |
20cec16a | 1355 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c | 1356 | #ifdef LEAKTEST |
20cec16a | 1357 | DEBUG_L(xstat()); |
a687059c | 1358 | #endif |
20cec16a | 1359 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c | 1360 | } |
8d063cd8 | 1361 | |
a0d0e21e | 1362 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
3e3baf6d | 1363 | #ifndef WIN32 |
8d063cd8 | 1364 | void |
7c0587c8 | 1365 | my_setenv(nam,val) |
8d063cd8 LW |
1366 | char *nam, *val; |
1367 | { | |
79072805 | 1368 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 | 1369 | |
fe14fcc3 | 1370 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 LW |
1371 | I32 j; |
1372 | I32 max; | |
fe14fcc3 LW |
1373 | char **tmpenv; |
1374 | ||
de3bb511 | 1375 | /*SUPPRESS 530*/ |
fe14fcc3 LW |
1376 | for (max = i; environ[max]; max++) ; |
1377 | New(901,tmpenv, max+2, char*); | |
1378 | for (j=0; j<max; j++) /* copy environment */ | |
a0d0e21e | 1379 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 LW |
1380 | tmpenv[max] = Nullch; |
1381 | environ = tmpenv; /* tell exec where it is now */ | |
1382 | } | |
a687059c | 1383 | if (!val) { |
e5ebf479 | 1384 | Safefree(environ[i]); |
a687059c LW |
1385 | while (environ[i]) { |
1386 | environ[i] = environ[i+1]; | |
1387 | i++; | |
1388 | } | |
1389 | return; | |
1390 | } | |
8d063cd8 | 1391 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 | 1392 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 LW |
1393 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1394 | } | |
fe14fcc3 LW |
1395 | else |
1396 | Safefree(environ[i]); | |
a687059c | 1397 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 | 1398 | #ifndef MSDOS |
a687059c | 1399 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 LW |
1400 | #else |
1401 | /* MS-DOS requires environment variable names to be in uppercase */ | |
fe14fcc3 LW |
1402 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1403 | * some utilities and applications may break because they only look | |
1404 | * for upper case strings. (Fixed strupr() bug here.)] | |
1405 | */ | |
1406 | strcpy(environ[i],nam); strupr(environ[i]); | |
62b28dd9 LW |
1407 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1408 | #endif /* MSDOS */ | |
8d063cd8 LW |
1409 | } |
1410 | ||
3e3baf6d | 1411 | #else /* if WIN32 */ |
68dc0745 | 1412 | |
1413 | void | |
1414 | my_setenv(nam,val) | |
1415 | char *nam, *val; | |
1416 | { | |
3e3baf6d TB |
1417 | |
1418 | #ifdef USE_WIN32_RTL_ENV | |
1419 | ||
68dc0745 | 1420 | register char *envstr; |
1421 | STRLEN namlen = strlen(nam); | |
3e3baf6d TB |
1422 | STRLEN vallen; |
1423 | char *oldstr = environ[setenv_getix(nam)]; | |
1424 | ||
1425 | /* putenv() has totally broken semantics in both the Borland | |
1426 | * and Microsoft CRTLs. They either store the passed pointer in | |
1427 | * the environment without making a copy, or make a copy and don't | |
1428 | * free it. And on top of that, they dont free() old entries that | |
1429 | * are being replaced/deleted. This means the caller must | |
1430 | * free any old entries somehow, or we end up with a memory | |
1431 | * leak every time my_setenv() is called. One might think | |
1432 | * one could directly manipulate environ[], like the UNIX code | |
1433 | * above, but direct changes to environ are not allowed when | |
1434 | * calling putenv(), since the RTLs maintain an internal | |
1435 | * *copy* of environ[]. Bad, bad, *bad* stink. | |
1436 | * GSAR 97-06-07 | |
1437 | */ | |
68dc0745 | 1438 | |
3e3baf6d TB |
1439 | if (!val) { |
1440 | if (!oldstr) | |
1441 | return; | |
1442 | val = ""; | |
1443 | vallen = 0; | |
1444 | } | |
1445 | else | |
1446 | vallen = strlen(val); | |
fc36a67e | 1447 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 | 1448 | (void)sprintf(envstr,"%s=%s",nam,val); |
3e3baf6d TB |
1449 | (void)putenv(envstr); |
1450 | if (oldstr) | |
1451 | Safefree(oldstr); | |
1452 | #ifdef _MSC_VER | |
1453 | Safefree(envstr); /* MSVCRT leaks without this */ | |
1454 | #endif | |
1455 | ||
1456 | #else /* !USE_WIN32_RTL_ENV */ | |
1457 | ||
1458 | /* The sane way to deal with the environment. | |
1459 | * Has these advantages over putenv() & co.: | |
1460 | * * enables us to store a truly empty value in the | |
1461 | * environment (like in UNIX). | |
1462 | * * we don't have to deal with RTL globals, bugs and leaks. | |
1463 | * * Much faster. | |
1464 | * Why you may want to enable USE_WIN32_RTL_ENV: | |
1465 | * * environ[] and RTL functions will not reflect changes, | |
1466 | * which might be an issue if extensions want to access | |
1467 | * the env. via RTL. This cuts both ways, since RTL will | |
1468 | * not see changes made by extensions that call the Win32 | |
1469 | * functions directly, either. | |
1470 | * GSAR 97-06-07 | |
1471 | */ | |
1472 | SetEnvironmentVariable(nam,val); | |
1473 | ||
1474 | #endif | |
1475 | } | |
1476 | ||
1477 | #endif /* WIN32 */ | |
1478 | ||
1479 | I32 | |
1480 | setenv_getix(nam) | |
1481 | char *nam; | |
1482 | { | |
1483 | register I32 i, len = strlen(nam); | |
1484 | ||
1485 | for (i = 0; environ[i]; i++) { | |
1486 | if ( | |
1487 | #ifdef WIN32 | |
1488 | strnicmp(environ[i],nam,len) == 0 | |
1489 | #else | |
1490 | strnEQ(environ[i],nam,len) | |
1491 | #endif | |
1492 | && environ[i][len] == '=') | |
1493 | break; /* strnEQ must come first to avoid */ | |
1494 | } /* potential SEGV's */ | |
1495 | return i; | |
68dc0745 | 1496 | } |
1497 | ||
a0d0e21e | 1498 | #endif /* !VMS */ |
378cc40b | 1499 | |
16d20bd9 | 1500 | #ifdef UNLINK_ALL_VERSIONS |
79072805 | 1501 | I32 |
378cc40b LW |
1502 | unlnk(f) /* unlink all versions of a file */ |
1503 | char *f; | |
1504 | { | |
79072805 | 1505 | I32 i; |
378cc40b LW |
1506 | |
1507 | for (i = 0; unlink(f) >= 0; i++) ; | |
1508 | return i ? 0 : -1; | |
1509 | } | |
1510 | #endif | |
1511 | ||
85e6fe83 | 1512 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b | 1513 | char * |
7c0587c8 | 1514 | my_bcopy(from,to,len) |
378cc40b LW |
1515 | register char *from; |
1516 | register char *to; | |
79072805 | 1517 | register I32 len; |
378cc40b LW |
1518 | { |
1519 | char *retval = to; | |
1520 | ||
7c0587c8 LW |
1521 | if (from - to >= 0) { |
1522 | while (len--) | |
1523 | *to++ = *from++; | |
1524 | } | |
1525 | else { | |
1526 | to += len; | |
1527 | from += len; | |
1528 | while (len--) | |
faf8582f | 1529 | *(--to) = *(--from); |
7c0587c8 | 1530 | } |
378cc40b LW |
1531 | return retval; |
1532 | } | |
ffed7fef | 1533 | #endif |
378cc40b | 1534 | |
fc36a67e | 1535 | #ifndef HAS_MEMSET |
1536 | void * | |
1537 | my_memset(loc,ch,len) | |
1538 | register char *loc; | |
1539 | register I32 ch; | |
1540 | register I32 len; | |
1541 | { | |
1542 | char *retval = loc; | |
1543 | ||
1544 | while (len--) | |
1545 | *loc++ = ch; | |
1546 | return retval; | |
1547 | } | |
1548 | #endif | |
1549 | ||
7c0587c8 | 1550 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b | 1551 | char * |
7c0587c8 | 1552 | my_bzero(loc,len) |
378cc40b | 1553 | register char *loc; |
79072805 | 1554 | register I32 len; |
378cc40b LW |
1555 | { |
1556 | char *retval = loc; | |
1557 | ||
1558 | while (len--) | |
1559 | *loc++ = 0; | |
1560 | return retval; | |
1561 | } | |
1562 | #endif | |
7c0587c8 | 1563 | |
36477c24 | 1564 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 | 1565 | I32 |
7c0587c8 | 1566 | my_memcmp(s1,s2,len) |
36477c24 | 1567 | char *s1; |
1568 | char *s2; | |
79072805 | 1569 | register I32 len; |
7c0587c8 | 1570 | { |
36477c24 | 1571 | register U8 *a = (U8 *)s1; |
1572 | register U8 *b = (U8 *)s2; | |
79072805 | 1573 | register I32 tmp; |
7c0587c8 LW |
1574 | |
1575 | while (len--) { | |
36477c24 | 1576 | if (tmp = *a++ - *b++) |
7c0587c8 LW |
1577 | return tmp; |
1578 | } | |
1579 | return 0; | |
1580 | } | |
36477c24 | 1581 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c | 1582 | |
4633a7c4 | 1583 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 | 1584 | #ifndef HAS_VPRINTF |
a687059c | 1585 | |
85e6fe83 | 1586 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1587 | char * |
1588 | #else | |
1589 | int | |
1590 | #endif | |
1591 | vsprintf(dest, pat, args) | |
71be2cbc | 1592 | char *dest; |
1593 | const char *pat; | |
1594 | char *args; | |
a687059c LW |
1595 | { |
1596 | FILE fakebuf; | |
1597 | ||
1598 | fakebuf._ptr = dest; | |
1599 | fakebuf._cnt = 32767; | |
35c8bce7 LW |
1600 | #ifndef _IOSTRG |
1601 | #define _IOSTRG 0 | |
1602 | #endif | |
a687059c LW |
1603 | fakebuf._flag = _IOWRT|_IOSTRG; |
1604 | _doprnt(pat, args, &fakebuf); /* what a kludge */ | |
1605 | (void)putc('\0', &fakebuf); | |
85e6fe83 | 1606 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1607 | return(dest); |
1608 | #else | |
1609 | return 0; /* perl doesn't use return value */ | |
1610 | #endif | |
1611 | } | |
1612 | ||
fe14fcc3 | 1613 | #endif /* HAS_VPRINTF */ |
4633a7c4 | 1614 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c LW |
1615 | |
1616 | #ifdef MYSWAP | |
ffed7fef | 1617 | #if BYTEORDER != 0x4321 |
a687059c | 1618 | short |
748a9306 | 1619 | #ifndef CAN_PROTOTYPE |
a687059c LW |
1620 | my_swap(s) |
1621 | short s; | |
748a9306 LW |
1622 | #else |
1623 | my_swap(short s) | |
1624 | #endif | |
a687059c LW |
1625 | { |
1626 | #if (BYTEORDER & 1) == 0 | |
1627 | short result; | |
1628 | ||
1629 | result = ((s & 255) << 8) + ((s >> 8) & 255); | |
1630 | return result; | |
1631 | #else | |
1632 | return s; | |
1633 | #endif | |
1634 | } | |
1635 | ||
1636 | long | |
748a9306 LW |
1637 | #ifndef CAN_PROTOTYPE |
1638 | my_htonl(l) | |
a687059c | 1639 | register long l; |
748a9306 LW |
1640 | #else |
1641 | my_htonl(long l) | |
1642 | #endif | |
a687059c LW |
1643 | { |
1644 | union { | |
1645 | long result; | |
ffed7fef | 1646 | char c[sizeof(long)]; |
a687059c LW |
1647 | } u; |
1648 | ||
ffed7fef | 1649 | #if BYTEORDER == 0x1234 |
a687059c LW |
1650 | u.c[0] = (l >> 24) & 255; |
1651 | u.c[1] = (l >> 16) & 255; | |
1652 | u.c[2] = (l >> 8) & 255; | |
1653 | u.c[3] = l & 255; | |
1654 | return u.result; | |
1655 | #else | |
ffed7fef | 1656 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1657 | croak("Unknown BYTEORDER\n"); |
a687059c | 1658 | #else |
79072805 LW |
1659 | register I32 o; |
1660 | register I32 s; | |
a687059c | 1661 | |
ffed7fef LW |
1662 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1663 | u.c[o & 0xf] = (l >> s) & 255; | |
a687059c LW |
1664 | } |
1665 | return u.result; | |
1666 | #endif | |
1667 | #endif | |
1668 | } | |
1669 | ||
1670 | long | |
748a9306 LW |
1671 | #ifndef CAN_PROTOTYPE |
1672 | my_ntohl(l) | |
a687059c | 1673 | register long l; |
748a9306 LW |
1674 | #else |
1675 | my_ntohl(long l) | |
1676 | #endif | |
a687059c LW |
1677 | { |
1678 | union { | |
1679 | long l; | |
ffed7fef | 1680 | char c[sizeof(long)]; |
a687059c LW |
1681 | } u; |
1682 | ||
ffed7fef | 1683 | #if BYTEORDER == 0x1234 |
a687059c LW |
1684 | u.c[0] = (l >> 24) & 255; |
1685 | u.c[1] = (l >> 16) & 255; | |
1686 | u.c[2] = (l >> 8) & 255; | |
1687 | u.c[3] = l & 255; | |
1688 | return u.l; | |
1689 | #else | |
ffed7fef | 1690 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1691 | croak("Unknown BYTEORDER\n"); |
a687059c | 1692 | #else |
79072805 LW |
1693 | register I32 o; |
1694 | register I32 s; | |
a687059c LW |
1695 | |
1696 | u.l = l; | |
1697 | l = 0; | |
ffed7fef LW |
1698 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1699 | l |= (u.c[o & 0xf] & 255) << s; | |
a687059c LW |
1700 | } |
1701 | return l; | |
1702 | #endif | |
1703 | #endif | |
1704 | } | |
1705 | ||
ffed7fef | 1706 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 LW |
1707 | #endif /* MYSWAP */ |
1708 | ||
1709 | /* | |
1710 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. | |
1711 | * If these functions are defined, | |
1712 | * the BYTEORDER is neither 0x1234 nor 0x4321. | |
1713 | * However, this is not assumed. | |
1714 | * -DWS | |
1715 | */ | |
1716 | ||
1717 | #define HTOV(name,type) \ | |
1718 | type \ | |
1719 | name (n) \ | |
1720 | register type n; \ | |
1721 | { \ | |
1722 | union { \ | |
1723 | type value; \ | |
1724 | char c[sizeof(type)]; \ | |
1725 | } u; \ | |
79072805 LW |
1726 | register I32 i; \ |
1727 | register I32 s; \ | |
988174c1 LW |
1728 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1729 | u.c[i] = (n >> s) & 0xFF; \ | |
1730 | } \ | |
1731 | return u.value; \ | |
1732 | } | |
1733 | ||
1734 | #define VTOH(name,type) \ | |
1735 | type \ | |
1736 | name (n) \ | |
1737 | register type n; \ | |
1738 | { \ | |
1739 | union { \ | |
1740 | type value; \ | |
1741 | char c[sizeof(type)]; \ | |
1742 | } u; \ | |
79072805 LW |
1743 | register I32 i; \ |
1744 | register I32 s; \ | |
988174c1 LW |
1745 | u.value = n; \ |
1746 | n = 0; \ | |
1747 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ | |
1748 | n += (u.c[i] & 0xFF) << s; \ | |
1749 | } \ | |
1750 | return n; \ | |
1751 | } | |
1752 | ||
1753 | #if defined(HAS_HTOVS) && !defined(htovs) | |
1754 | HTOV(htovs,short) | |
1755 | #endif | |
1756 | #if defined(HAS_HTOVL) && !defined(htovl) | |
1757 | HTOV(htovl,long) | |
1758 | #endif | |
1759 | #if defined(HAS_VTOHS) && !defined(vtohs) | |
1760 | VTOH(vtohs,short) | |
1761 | #endif | |
1762 | #if defined(HAS_VTOHL) && !defined(vtohl) | |
1763 | VTOH(vtohl,long) | |
1764 | #endif | |
a687059c | 1765 | |
5f05dabc | 1766 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
1767 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) | |
760ac839 | 1768 | PerlIO * |
79072805 | 1769 | my_popen(cmd,mode) |
a687059c LW |
1770 | char *cmd; |
1771 | char *mode; | |
1772 | { | |
1773 | int p[2]; | |
79072805 LW |
1774 | register I32 this, that; |
1775 | register I32 pid; | |
1776 | SV *sv; | |
1738f5c4 | 1777 | I32 doexec = strNE(cmd,"-"); |
a687059c | 1778 | |
ddcf38b7 IZ |
1779 | #ifdef OS2 |
1780 | if (doexec) { | |
1781 | return my_syspopen(cmd,mode); | |
1782 | } | |
1783 | #endif | |
a687059c LW |
1784 | if (pipe(p) < 0) |
1785 | return Nullfp; | |
1786 | this = (*mode == 'w'); | |
1787 | that = !this; | |
bbce6d69 | 1788 | if (doexec && tainting) { |
1789 | taint_env(); | |
1790 | taint_proper("Insecure %s%s", "EXEC"); | |
d48672a2 | 1791 | } |
a687059c LW |
1792 | while ((pid = (doexec?vfork():fork())) < 0) { |
1793 | if (errno != EAGAIN) { | |
1794 | close(p[this]); | |
1795 | if (!doexec) | |
463ee0b2 | 1796 | croak("Can't fork"); |
a687059c LW |
1797 | return Nullfp; |
1798 | } | |
1799 | sleep(5); | |
1800 | } | |
1801 | if (pid == 0) { | |
79072805 LW |
1802 | GV* tmpgv; |
1803 | ||
a687059c LW |
1804 | #define THIS that |
1805 | #define THAT this | |
1806 | close(p[THAT]); | |
1807 | if (p[THIS] != (*mode == 'r')) { | |
1808 | dup2(p[THIS], *mode == 'r'); | |
1809 | close(p[THIS]); | |
1810 | } | |
1811 | if (doexec) { | |
a0d0e21e | 1812 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 LW |
1813 | int fd; |
1814 | ||
1815 | #ifndef NOFILE | |
1816 | #define NOFILE 20 | |
1817 | #endif | |
d48672a2 | 1818 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 LW |
1819 | close(fd); |
1820 | #endif | |
a687059c LW |
1821 | do_exec(cmd); /* may or may not use the shell */ |
1822 | _exit(1); | |
1823 | } | |
de3bb511 | 1824 | /*SUPPRESS 560*/ |
85e6fe83 | 1825 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 1826 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
9f68db38 | 1827 | forkprocess = 0; |
463ee0b2 | 1828 | hv_clear(pidstatus); /* we have no children */ |
a687059c LW |
1829 | return Nullfp; |
1830 | #undef THIS | |
1831 | #undef THAT | |
1832 | } | |
62b28dd9 | 1833 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c | 1834 | close(p[that]); |
62b28dd9 LW |
1835 | if (p[that] < p[this]) { |
1836 | dup2(p[this], p[that]); | |
1837 | close(p[this]); | |
1838 | p[this] = p[that]; | |
1839 | } | |
79072805 | 1840 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e | 1841 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 1842 | SvIVX(sv) = pid; |
a687059c | 1843 | forkprocess = pid; |
760ac839 | 1844 | return PerlIO_fdopen(p[this], mode); |
a687059c | 1845 | } |
7c0587c8 | 1846 | #else |
55497cff | 1847 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 | 1848 | FILE *popen(); |
760ac839 | 1849 | PerlIO * |
79072805 | 1850 | my_popen(cmd,mode) |
7c0587c8 LW |
1851 | char *cmd; |
1852 | char *mode; | |
1853 | { | |
760ac839 | 1854 | /* Needs work for PerlIO ! */ |
55497cff | 1855 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1856 | return popen(PerlIO_exportFILE(cmd, 0), mode); | |
7c0587c8 LW |
1857 | } |
1858 | #endif | |
1859 | ||
1860 | #endif /* !DOSISH */ | |
a687059c | 1861 | |
748a9306 | 1862 | #ifdef DUMP_FDS |
79072805 | 1863 | dump_fds(s) |
ae986130 LW |
1864 | char *s; |
1865 | { | |
1866 | int fd; | |
1867 | struct stat tmpstatbuf; | |
1868 | ||
760ac839 | 1869 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 | 1870 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e | 1871 | if (Fstat(fd,&tmpstatbuf) >= 0) |
760ac839 | 1872 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 | 1873 | } |
760ac839 | 1874 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 LW |
1875 | } |
1876 | #endif | |
1877 | ||
fe14fcc3 | 1878 | #ifndef HAS_DUP2 |
fec02dd3 | 1879 | int |
a687059c LW |
1880 | dup2(oldfd,newfd) |
1881 | int oldfd; | |
1882 | int newfd; | |
1883 | { | |
a0d0e21e | 1884 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 AD |
1885 | if (oldfd == newfd) |
1886 | return oldfd; | |
62b28dd9 | 1887 | close(newfd); |
fec02dd3 | 1888 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 | 1889 | #else |
fc36a67e | 1890 | #define DUP2_MAX_FDS 256 |
1891 | int fdtmp[DUP2_MAX_FDS]; | |
79072805 | 1892 | I32 fdx = 0; |
ae986130 LW |
1893 | int fd; |
1894 | ||
fe14fcc3 | 1895 | if (oldfd == newfd) |
fec02dd3 | 1896 | return oldfd; |
a687059c | 1897 | close(newfd); |
fc36a67e | 1898 | /* good enough for low fd's... */ |
1899 | while ((fd = dup(oldfd)) != newfd && fd >= 0) { | |
1900 | if (fdx >= DUP2_MAX_FDS) { | |
1901 | close(fd); | |
1902 | fd = -1; | |
1903 | break; | |
1904 | } | |
ae986130 | 1905 | fdtmp[fdx++] = fd; |
fc36a67e | 1906 | } |
ae986130 LW |
1907 | while (fdx > 0) |
1908 | close(fdtmp[--fdx]); | |
fec02dd3 | 1909 | return fd; |
62b28dd9 | 1910 | #endif |
a687059c LW |
1911 | } |
1912 | #endif | |
1913 | ||
ff68c719 | 1914 | |
1915 | #ifdef HAS_SIGACTION | |
1916 | ||
1917 | Sighandler_t | |
1918 | rsignal(signo, handler) | |
1919 | int signo; | |
1920 | Sighandler_t handler; | |
1921 | { | |
1922 | struct sigaction act, oact; | |
1923 | ||
1924 | act.sa_handler = handler; | |
1925 | sigemptyset(&act.sa_mask); | |
1926 | act.sa_flags = 0; | |
1927 | #ifdef SA_RESTART | |
1928 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
1929 | #endif | |
1930 | if (sigaction(signo, &act, &oact) == -1) | |
36477c24 | 1931 | return SIG_ERR; |
ff68c719 | 1932 | else |
36477c24 | 1933 | return oact.sa_handler; |
ff68c719 | 1934 | } |
1935 | ||
1936 | Sighandler_t | |
1937 | rsignal_state(signo) | |
1938 | int signo; | |
1939 | { | |
1940 | struct sigaction oact; | |
1941 | ||
1942 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) | |
1943 | return SIG_ERR; | |
1944 | else | |
1945 | return oact.sa_handler; | |
1946 | } | |
1947 | ||
1948 | int | |
1949 | rsignal_save(signo, handler, save) | |
1950 | int signo; | |
1951 | Sighandler_t handler; | |
1952 | Sigsave_t *save; | |
1953 | { | |
1954 | struct sigaction act; | |
1955 | ||
1956 | act.sa_handler = handler; | |
1957 | sigemptyset(&act.sa_mask); | |
1958 | act.sa_flags = 0; | |
1959 | #ifdef SA_RESTART | |
1960 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
1961 | #endif | |
1962 | return sigaction(signo, &act, save); | |
1963 | } | |
1964 | ||
1965 | int | |
1966 | rsignal_restore(signo, save) | |
1967 | int signo; | |
1968 | Sigsave_t *save; | |
1969 | { | |
1970 | return sigaction(signo, save, (struct sigaction *)NULL); | |
1971 | } | |
1972 | ||
1973 | #else /* !HAS_SIGACTION */ | |
1974 | ||
1975 | Sighandler_t | |
1976 | rsignal(signo, handler) | |
1977 | int signo; | |
1978 | Sighandler_t handler; | |
1979 | { | |
1980 | return signal(signo, handler); | |
1981 | } | |
1982 | ||
1983 | static int sig_trapped; | |
1984 | ||
1985 | static | |
1986 | Signal_t | |
1987 | sig_trap(signo) | |
1988 | int signo; | |
1989 | { | |
1990 | sig_trapped++; | |
1991 | } | |
1992 | ||
1993 | Sighandler_t | |
1994 | rsignal_state(signo) | |
1995 | int signo; | |
1996 | { | |
1997 | Sighandler_t oldsig; | |
1998 | ||
1999 | sig_trapped = 0; | |
2000 | oldsig = signal(signo, sig_trap); | |
2001 | signal(signo, oldsig); | |
2002 | if (sig_trapped) | |
2003 | kill(getpid(), signo); | |
2004 | return oldsig; | |
2005 | } | |
2006 | ||
2007 | int | |
2008 | rsignal_save(signo, handler, save) | |
2009 | int signo; | |
2010 | Sighandler_t handler; | |
2011 | Sigsave_t *save; | |
2012 | { | |
2013 | *save = signal(signo, handler); | |
2014 | return (*save == SIG_ERR) ? -1 : 0; | |
2015 | } | |
2016 | ||
2017 | int | |
36477c24 | 2018 | rsignal_restore(signo, save) |
ff68c719 | 2019 | int signo; |
2020 | Sigsave_t *save; | |
2021 | { | |
2022 | return (signal(signo, *save) == SIG_ERR) ? -1 : 0; | |
2023 | } | |
2024 | ||
2025 | #endif /* !HAS_SIGACTION */ | |
2026 | ||
5f05dabc | 2027 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
2028 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) | |
79072805 LW |
2029 | I32 |
2030 | my_pclose(ptr) | |
760ac839 | 2031 | PerlIO *ptr; |
a687059c | 2032 | { |
ff68c719 | 2033 | Sigsave_t hstat, istat, qstat; |
a687059c | 2034 | int status; |
a0d0e21e | 2035 | SV **svp; |
20188a90 | 2036 | int pid; |
03136e13 CS |
2037 | bool close_failed; |
2038 | int saved_errno; | |
2039 | #ifdef VMS | |
2040 | int saved_vaxc_errno; | |
2041 | #endif | |
a687059c | 2042 | |
760ac839 | 2043 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 | 2044 | pid = (int)SvIVX(*svp); |
a0d0e21e LW |
2045 | SvREFCNT_dec(*svp); |
2046 | *svp = &sv_undef; | |
ddcf38b7 IZ |
2047 | #ifdef OS2 |
2048 | if (pid == -1) { /* Opened by popen. */ | |
2049 | return my_syspclose(ptr); | |
2050 | } | |
2051 | #endif | |
03136e13 CS |
2052 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2053 | saved_errno = errno; | |
2054 | #ifdef VMS | |
2055 | saved_vaxc_errno = vaxc$errno; | |
2056 | #endif | |
2057 | } | |
7c0587c8 LW |
2058 | #ifdef UTS |
2059 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ | |
2060 | #endif | |
ff68c719 | 2061 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2062 | rsignal_save(SIGINT, SIG_IGN, &istat); | |
2063 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); | |
748a9306 LW |
2064 | do { |
2065 | pid = wait4pid(pid, &status, 0); | |
2066 | } while (pid == -1 && errno == EINTR); | |
ff68c719 | 2067 | rsignal_restore(SIGHUP, &hstat); |
2068 | rsignal_restore(SIGINT, &istat); | |
2069 | rsignal_restore(SIGQUIT, &qstat); | |
03136e13 CS |
2070 | if (close_failed) { |
2071 | SETERRNO(saved_errno, saved_vaxc_errno); | |
2072 | return -1; | |
2073 | } | |
2074 | return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status)); | |
20188a90 | 2075 | } |
4633a7c4 LW |
2076 | #endif /* !DOSISH */ |
2077 | ||
2078 | #if !defined(DOSISH) || defined(OS2) | |
79072805 | 2079 | I32 |
20188a90 LW |
2080 | wait4pid(pid,statusp,flags) |
2081 | int pid; | |
2082 | int *statusp; | |
2083 | int flags; | |
2084 | { | |
79072805 LW |
2085 | SV *sv; |
2086 | SV** svp; | |
fc36a67e | 2087 | char spid[TYPE_CHARS(int)]; |
20188a90 LW |
2088 | |
2089 | if (!pid) | |
2090 | return -1; | |
20188a90 LW |
2091 | if (pid > 0) { |
2092 | sprintf(spid, "%d", pid); | |
79072805 LW |
2093 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
2094 | if (svp && *svp != &sv_undef) { | |
463ee0b2 | 2095 | *statusp = SvIVX(*svp); |
748a9306 | 2096 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2097 | return pid; |
2098 | } | |
2099 | } | |
2100 | else { | |
79072805 | 2101 | HE *entry; |
20188a90 | 2102 | |
79072805 LW |
2103 | hv_iterinit(pidstatus); |
2104 | if (entry = hv_iternext(pidstatus)) { | |
a0d0e21e | 2105 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 | 2106 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 | 2107 | *statusp = SvIVX(sv); |
20188a90 | 2108 | sprintf(spid, "%d", pid); |
748a9306 | 2109 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2110 | return pid; |
2111 | } | |
2112 | } | |
79072805 | 2113 | #ifdef HAS_WAITPID |
367f3c24 IZ |
2114 | # ifdef HAS_WAITPID_RUNTIME |
2115 | if (!HAS_WAITPID_RUNTIME) | |
2116 | goto hard_way; | |
2117 | # endif | |
79072805 | 2118 | return waitpid(pid,statusp,flags); |
367f3c24 IZ |
2119 | #endif |
2120 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) | |
a0d0e21e | 2121 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 IZ |
2122 | #endif |
2123 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) | |
2124 | hard_way: | |
a0d0e21e LW |
2125 | { |
2126 | I32 result; | |
2127 | if (flags) | |
2128 | croak("Can't do waitpid with flags"); | |
2129 | else { | |
2130 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) | |
2131 | pidgone(result,*statusp); | |
2132 | if (result < 0) | |
2133 | *statusp = -1; | |
2134 | } | |
2135 | return result; | |
a687059c LW |
2136 | } |
2137 | #endif | |
a687059c | 2138 | } |
7c0587c8 | 2139 | #endif /* !DOSISH */ |
a687059c | 2140 | |
7c0587c8 | 2141 | void |
de3bb511 | 2142 | /*SUPPRESS 590*/ |
a687059c LW |
2143 | pidgone(pid,status) |
2144 | int pid; | |
2145 | int status; | |
2146 | { | |
79072805 | 2147 | register SV *sv; |
fc36a67e | 2148 | char spid[TYPE_CHARS(int)]; |
a687059c | 2149 | |
20188a90 | 2150 | sprintf(spid, "%d", pid); |
79072805 | 2151 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e | 2152 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 2153 | SvIVX(sv) = status; |
20188a90 | 2154 | return; |
a687059c LW |
2155 | } |
2156 | ||
55497cff | 2157 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 | 2158 | int pclose(); |
ddcf38b7 IZ |
2159 | #ifdef HAS_FORK |
2160 | int /* Cannot prototype with I32 | |
2161 | in os2ish.h. */ | |
2162 | my_syspclose(ptr) | |
2163 | #else | |
79072805 LW |
2164 | I32 |
2165 | my_pclose(ptr) | |
ddcf38b7 | 2166 | #endif |
760ac839 | 2167 | PerlIO *ptr; |
a687059c | 2168 | { |
760ac839 LW |
2169 | /* Needs work for PerlIO ! */ |
2170 | FILE *f = PerlIO_findFILE(ptr); | |
2171 | I32 result = pclose(f); | |
2172 | PerlIO_releaseFILE(ptr,f); | |
2173 | return result; | |
a687059c | 2174 | } |
7c0587c8 | 2175 | #endif |
9f68db38 LW |
2176 | |
2177 | void | |
2178 | repeatcpy(to,from,len,count) | |
2179 | register char *to; | |
2180 | register char *from; | |
79072805 LW |
2181 | I32 len; |
2182 | register I32 count; | |
9f68db38 | 2183 | { |
79072805 | 2184 | register I32 todo; |
9f68db38 LW |
2185 | register char *frombase = from; |
2186 | ||
2187 | if (len == 1) { | |
2188 | todo = *from; | |
2189 | while (count-- > 0) | |
2190 | *to++ = todo; | |
2191 | return; | |
2192 | } | |
2193 | while (count-- > 0) { | |
2194 | for (todo = len; todo > 0; todo--) { | |
2195 | *to++ = *from++; | |
2196 | } | |
2197 | from = frombase; | |
2198 | } | |
2199 | } | |
0f85fab0 LW |
2200 | |
2201 | #ifndef CASTNEGFLOAT | |
463ee0b2 | 2202 | U32 |
79072805 | 2203 | cast_ulong(f) |
0f85fab0 LW |
2204 | double f; |
2205 | { | |
2206 | long along; | |
2207 | ||
27e2fb84 | 2208 | #if CASTFLAGS & 2 |
34de22dd LW |
2209 | # define BIGDOUBLE 2147483648.0 |
2210 | if (f >= BIGDOUBLE) | |
2211 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; | |
2212 | #endif | |
0f85fab0 LW |
2213 | if (f >= 0.0) |
2214 | return (unsigned long)f; | |
2215 | along = (long)f; | |
2216 | return (unsigned long)along; | |
2217 | } | |
ed6116ce LW |
2218 | # undef BIGDOUBLE |
2219 | #endif | |
2220 | ||
2221 | #ifndef CASTI32 | |
5d94fbed | 2222 | |
5d94fbed AD |
2223 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2224 | work with the system-supplied definition of ULONG_MAX. The | |
2225 | comparison (f >= ULONG_MAX) always comes out true. It must be a | |
2226 | problem with the compiler constant folding. | |
2227 | ||
2228 | In any case, this workaround should be fine on any two's complement | |
2229 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your | |
2230 | ccflags. | |
2231 | --Andy Dougherty <doughera@lafcol.lafayette.edu> | |
2232 | */ | |
1eb770ff | 2233 | |
2234 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead | |
2235 | of LONG_(MIN/MAX). | |
2236 | -- Kenneth Albanowski <kjahds@kjahds.com> | |
2237 | */ | |
2238 | ||
20cec16a | 2239 | #ifndef MY_UV_MAX |
2240 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) | |
5d94fbed AD |
2241 | #endif |
2242 | ||
ed6116ce LW |
2243 | I32 |
2244 | cast_i32(f) | |
2245 | double f; | |
2246 | { | |
20cec16a | 2247 | if (f >= I32_MAX) |
2248 | return (I32) I32_MAX; | |
2249 | if (f <= I32_MIN) | |
2250 | return (I32) I32_MIN; | |
ed6116ce LW |
2251 | return (I32) f; |
2252 | } | |
a0d0e21e LW |
2253 | |
2254 | IV | |
2255 | cast_iv(f) | |
2256 | double f; | |
2257 | { | |
20cec16a | 2258 | if (f >= IV_MAX) |
2259 | return (IV) IV_MAX; | |
2260 | if (f <= IV_MIN) | |
2261 | return (IV) IV_MIN; | |
a0d0e21e LW |
2262 | return (IV) f; |
2263 | } | |
5d94fbed AD |
2264 | |
2265 | UV | |
2266 | cast_uv(f) | |
2267 | double f; | |
2268 | { | |
20cec16a | 2269 | if (f >= MY_UV_MAX) |
2270 | return (UV) MY_UV_MAX; | |
5d94fbed AD |
2271 | return (UV) f; |
2272 | } | |
2273 | ||
0f85fab0 | 2274 | #endif |
62b28dd9 | 2275 | |
fe14fcc3 | 2276 | #ifndef HAS_RENAME |
79072805 | 2277 | I32 |
62b28dd9 LW |
2278 | same_dirent(a,b) |
2279 | char *a; | |
2280 | char *b; | |
2281 | { | |
93a17b20 LW |
2282 | char *fa = strrchr(a,'/'); |
2283 | char *fb = strrchr(b,'/'); | |
62b28dd9 LW |
2284 | struct stat tmpstatbuf1; |
2285 | struct stat tmpstatbuf2; | |
46fc3d4c | 2286 | SV *tmpsv = sv_newmortal(); |
62b28dd9 LW |
2287 | |
2288 | if (fa) | |
2289 | fa++; | |
2290 | else | |
2291 | fa = a; | |
2292 | if (fb) | |
2293 | fb++; | |
2294 | else | |
2295 | fb = b; | |
2296 | if (strNE(a,b)) | |
2297 | return FALSE; | |
2298 | if (fa == a) | |
46fc3d4c | 2299 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2300 | else |
46fc3d4c | 2301 | sv_setpvn(tmpsv, a, fa - a); |
2302 | if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) | |
62b28dd9 LW |
2303 | return FALSE; |
2304 | if (fb == b) | |
46fc3d4c | 2305 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2306 | else |
46fc3d4c | 2307 | sv_setpvn(tmpsv, b, fb - b); |
2308 | if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) | |
62b28dd9 LW |
2309 | return FALSE; |
2310 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && | |
2311 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; | |
2312 | } | |
fe14fcc3 LW |
2313 | #endif /* !HAS_RENAME */ |
2314 | ||
55497cff | 2315 | UV |
79072805 | 2316 | scan_oct(start, len, retlen) |
fe14fcc3 | 2317 | char *start; |
79072805 LW |
2318 | I32 len; |
2319 | I32 *retlen; | |
fe14fcc3 LW |
2320 | { |
2321 | register char *s = start; | |
55497cff | 2322 | register UV retval = 0; |
2323 | bool overflowed = FALSE; | |
fe14fcc3 | 2324 | |
748a9306 | 2325 | while (len && *s >= '0' && *s <= '7') { |
55497cff | 2326 | register UV n = retval << 3; |
2327 | if (!overflowed && (n >> 3) != retval) { | |
2328 | warn("Integer overflow in octal number"); | |
2329 | overflowed = TRUE; | |
2330 | } | |
2331 | retval = n | (*s++ - '0'); | |
748a9306 | 2332 | len--; |
fe14fcc3 | 2333 | } |
748a9306 LW |
2334 | if (dowarn && len && (*s == '8' || *s == '9')) |
2335 | warn("Illegal octal digit ignored"); | |
fe14fcc3 LW |
2336 | *retlen = s - start; |
2337 | return retval; | |
2338 | } | |
2339 | ||
71be2cbc | 2340 | UV |
79072805 | 2341 | scan_hex(start, len, retlen) |
fe14fcc3 | 2342 | char *start; |
79072805 LW |
2343 | I32 len; |
2344 | I32 *retlen; | |
fe14fcc3 LW |
2345 | { |
2346 | register char *s = start; | |
55497cff | 2347 | register UV retval = 0; |
2348 | bool overflowed = FALSE; | |
fe14fcc3 LW |
2349 | char *tmp; |
2350 | ||
93a17b20 | 2351 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
55497cff | 2352 | register UV n = retval << 4; |
2353 | if (!overflowed && (n >> 4) != retval) { | |
2354 | warn("Integer overflow in hex number"); | |
2355 | overflowed = TRUE; | |
2356 | } | |
2357 | retval = n | (tmp - hexdigit) & 15; | |
fe14fcc3 LW |
2358 | s++; |
2359 | } | |
2360 | *retlen = s - start; | |
2361 | return retval; | |
2362 | } | |
760ac839 | 2363 | |
11343788 | 2364 | #ifdef USE_THREADS |
12ca11f6 MB |
2365 | #ifdef FAKE_THREADS |
2366 | /* Very simplistic scheduler for now */ | |
2367 | void | |
2368 | schedule(void) | |
2369 | { | |
c7848ba1 | 2370 | thr = thr->i.next_run; |
12ca11f6 MB |
2371 | } |
2372 | ||
2373 | void | |
2374 | perl_cond_init(cp) | |
2375 | perl_cond *cp; | |
2376 | { | |
2377 | *cp = 0; | |
2378 | } | |
2379 | ||
2380 | void | |
2381 | perl_cond_signal(cp) | |
2382 | perl_cond *cp; | |
2383 | { | |
2384 | perl_thread t; | |
2385 | perl_cond cond = *cp; | |
2386 | ||
2387 | if (!cond) | |
2388 | return; | |
2389 | t = cond->thread; | |
2390 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2391 | t->i.next_run = thr->i.next_run; |
2392 | thr->i.next_run->i.prev_run = t; | |
2393 | t->i.prev_run = thr; | |
2394 | thr->i.next_run = t; | |
2395 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2396 | /* Remove from the wait queue */ |
2397 | *cp = cond->next; | |
2398 | Safefree(cond); | |
2399 | } | |
2400 | ||
2401 | void | |
2402 | perl_cond_broadcast(cp) | |
2403 | perl_cond *cp; | |
2404 | { | |
2405 | perl_thread t; | |
2406 | perl_cond cond, cond_next; | |
2407 | ||
2408 | for (cond = *cp; cond; cond = cond_next) { | |
2409 | t = cond->thread; | |
2410 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2411 | t->i.next_run = thr->i.next_run; |
2412 | thr->i.next_run->i.prev_run = t; | |
2413 | t->i.prev_run = thr; | |
2414 | thr->i.next_run = t; | |
2415 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2416 | /* Remove from the wait queue */ |
2417 | cond_next = cond->next; | |
2418 | Safefree(cond); | |
2419 | } | |
2420 | *cp = 0; | |
2421 | } | |
2422 | ||
2423 | void | |
2424 | perl_cond_wait(cp) | |
2425 | perl_cond *cp; | |
2426 | { | |
2427 | perl_cond cond; | |
2428 | ||
c7848ba1 | 2429 | if (thr->i.next_run == thr) |
12ca11f6 MB |
2430 | croak("panic: perl_cond_wait called by last runnable thread"); |
2431 | ||
0f15f207 | 2432 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 MB |
2433 | cond->thread = thr; |
2434 | cond->next = *cp; | |
2435 | *cp = cond; | |
c7848ba1 | 2436 | thr->i.wait_queue = cond; |
12ca11f6 | 2437 | /* Remove ourselves from runnable queue */ |
c7848ba1 MB |
2438 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
2439 | thr->i.prev_run->i.next_run = thr->i.next_run; | |
12ca11f6 MB |
2440 | } |
2441 | #endif /* FAKE_THREADS */ | |
2442 | ||
11343788 MB |
2443 | #ifdef OLD_PTHREADS_API |
2444 | struct thread * | |
2445 | getTHR _((void)) | |
2446 | { | |
2447 | pthread_addr_t t; | |
2448 | ||
2449 | if (pthread_getspecific(thr_key, &t)) | |
2450 | croak("panic: pthread_getspecific"); | |
2451 | return (struct thread *) t; | |
2452 | } | |
2453 | #endif /* OLD_PTHREADS_API */ | |
f93b4edd MB |
2454 | |
2455 | MAGIC * | |
2456 | condpair_magic(sv) | |
2457 | SV *sv; | |
2458 | { | |
2459 | MAGIC *mg; | |
2460 | ||
2461 | SvUPGRADE(sv, SVt_PVMG); | |
2462 | mg = mg_find(sv, 'm'); | |
2463 | if (!mg) { | |
2464 | condpair_t *cp; | |
2465 | ||
2466 | New(53, cp, 1, condpair_t); | |
2467 | MUTEX_INIT(&cp->mutex); | |
2468 | COND_INIT(&cp->owner_cond); | |
2469 | COND_INIT(&cp->cond); | |
2470 | cp->owner = 0; | |
2471 | MUTEX_LOCK(&sv_mutex); | |
2472 | mg = mg_find(sv, 'm'); | |
2473 | if (mg) { | |
2474 | /* someone else beat us to initialising it */ | |
2475 | MUTEX_UNLOCK(&sv_mutex); | |
2476 | MUTEX_DESTROY(&cp->mutex); | |
2477 | COND_DESTROY(&cp->owner_cond); | |
2478 | COND_DESTROY(&cp->cond); | |
2479 | Safefree(cp); | |
2480 | } | |
2481 | else { | |
2482 | sv_magic(sv, Nullsv, 'm', 0, 0); | |
2483 | mg = SvMAGIC(sv); | |
2484 | mg->mg_ptr = (char *)cp; | |
2485 | mg->mg_len = sizeof(cp); | |
2486 | MUTEX_UNLOCK(&sv_mutex); | |
bc1f4c86 | 2487 | DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 2488 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd MB |
2489 | } |
2490 | } | |
2491 | return mg; | |
2492 | } | |
a863c7d1 MB |
2493 | |
2494 | /* | |
199100c8 MB |
2495 | * Make a new perl thread structure using t as a prototype. Some of the |
2496 | * fields for the new thread are copied from the prototype thread, t, | |
2497 | * so t should not be running in perl at the time this function is | |
2498 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the | |
2499 | * thread calling new_struct_thread) clearly satisfies this constraint. | |
a863c7d1 MB |
2500 | */ |
2501 | struct thread * | |
2502 | new_struct_thread(t) | |
2503 | struct thread *t; | |
2504 | { | |
2505 | struct thread *thr; | |
a863c7d1 | 2506 | SV *sv; |
199100c8 MB |
2507 | SV **svp; |
2508 | I32 i; | |
2509 | ||
2510 | sv = newSVpv("", 0); | |
2511 | SvGROW(sv, sizeof(struct thread) + 1); | |
2512 | SvCUR_set(sv, sizeof(struct thread)); | |
2513 | thr = (Thread) SvPVX(sv); | |
199100c8 MB |
2514 | /* debug */ |
2515 | memset(thr, 0xab, sizeof(struct thread)); | |
2516 | markstack = 0; | |
2517 | scopestack = 0; | |
2518 | savestack = 0; | |
2519 | retstack = 0; | |
2520 | dirty = 0; | |
2521 | localizing = 0; | |
2522 | /* end debug */ | |
2523 | ||
2524 | thr->oursv = sv; | |
d55594ae | 2525 | init_stacks(ARGS); |
a863c7d1 | 2526 | |
a863c7d1 | 2527 | curcop = &compiling; |
199100c8 | 2528 | thr->cvcache = newHV(); |
554b3eca | 2529 | thr->magicals = newAV(); |
a863c7d1 MB |
2530 | thr->specific = newAV(); |
2531 | thr->flags = THRf_R_JOINABLE; | |
2532 | MUTEX_INIT(&thr->mutex); | |
199100c8 MB |
2533 | |
2534 | curcop = t->Tcurcop; /* XXX As good a guess as any? */ | |
2535 | defstash = t->Tdefstash; /* XXX maybe these should */ | |
2536 | curstash = t->Tcurstash; /* always be set to main? */ | |
d55594ae GS |
2537 | |
2538 | ||
2539 | /* top_env needs to be non-zero. It points to an area | |
2540 | in which longjmp() stuff is stored, as C callstack | |
2541 | info there at least is thread specific this has to | |
2542 | be per-thread. Otherwise a 'die' in a thread gives | |
2543 | that thread the C stack of last thread to do an eval {}! | |
2544 | See comments in scope.h | |
2545 | Initialize top entry (as in perl.c for main thread) | |
2546 | */ | |
2547 | start_env.je_prev = NULL; | |
2548 | start_env.je_ret = -1; | |
2549 | start_env.je_mustcatch = TRUE; | |
2550 | top_env = &start_env; | |
2551 | ||
2552 | runlevel = 0; /* Let entering sub do increment */ | |
2553 | ||
199100c8 MB |
2554 | in_eval = FALSE; |
2555 | restartop = 0; | |
2556 | ||
2557 | tainted = t->Ttainted; | |
2558 | curpm = t->Tcurpm; /* XXX No PMOP ref count */ | |
2559 | nrs = newSVsv(t->Tnrs); | |
2560 | rs = newSVsv(t->Trs); | |
2561 | last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv); | |
2562 | ofslen = t->Tofslen; | |
2563 | ofs = savepvn(t->Tofs, ofslen); | |
2564 | defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); | |
2565 | chopset = t->Tchopset; | |
2566 | formtarget = newSVsv(t->Tformtarget); | |
2567 | bodytarget = newSVsv(t->Tbodytarget); | |
2568 | toptarget = newSVsv(t->Ttoptarget); | |
2569 | ||
2570 | /* Initialise all per-thread magicals that the template thread used */ | |
2571 | svp = AvARRAY(t->magicals); | |
2572 | for (i = 0; i <= AvFILL(t->magicals); i++, svp++) { | |
2573 | if (*svp && *svp != &sv_undef) { | |
2574 | SV *sv = newSVsv(*svp); | |
2575 | av_store(thr->magicals, i, sv); | |
2576 | sv_magic(sv, 0, 0, &per_thread_magicals[i], 1); | |
2577 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), | |
d55594ae GS |
2578 | "new_struct_thread: copied magical %d %p->%p\n",i, |
2579 | t, thr)); | |
199100c8 MB |
2580 | } |
2581 | } | |
2582 | ||
a863c7d1 MB |
2583 | MUTEX_LOCK(&threads_mutex); |
2584 | nthreads++; | |
199100c8 MB |
2585 | thr->tid = ++threadnum; |
2586 | thr->next = t->next; | |
2587 | thr->prev = t; | |
2588 | t->next = thr; | |
2589 | thr->next->prev = thr; | |
a863c7d1 MB |
2590 | MUTEX_UNLOCK(&threads_mutex); |
2591 | ||
d55594ae GS |
2592 | /* |
2593 | * This is highly suspect - new_struct_thread is executed | |
2594 | * by creating thread so pthread_self() or equivalent | |
2595 | * is parent thread not the child. | |
2596 | * In particular this should _NOT_ change dTHR value of calling thread. | |
2597 | * | |
2598 | * But a good place to have a 'hook' for filling in port-private | |
2599 | * fields of thr. | |
2600 | */ | |
2601 | #ifdef INIT_THREAD_INTERN | |
2602 | INIT_THREAD_INTERN(thr); | |
a863c7d1 MB |
2603 | #else |
2604 | thr->self = pthread_self(); | |
32f822de | 2605 | #endif /* INIT_THREAD_INTERN */ |
a863c7d1 MB |
2606 | return thr; |
2607 | } | |
11343788 | 2608 | #endif /* USE_THREADS */ |
760ac839 LW |
2609 | |
2610 | #ifdef HUGE_VAL | |
2611 | /* | |
2612 | * This hack is to force load of "huge" support from libm.a | |
2613 | * So it is in perl for (say) POSIX to use. | |
2614 | * Needed for SunOS with Sun's 'acc' for example. | |
2615 | */ | |
2616 | double | |
2617 | Perl_huge() | |
2618 | { | |
2619 | return HUGE_VAL; | |
2620 | } | |
2621 | #endif |