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Add missing reset of eval_owner if doeval() fails to parse.
[perl5.git] / util.c
CommitLineData
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
PP
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
PP
49#ifdef I_SYS_WAIT
50# include <sys/wait.h>
51#endif
52
8d063cd8 53#define FLUSH
8d063cd8 54
a0d0e21e
LW
55#ifdef LEAKTEST
56static void xstat _((void));
57#endif
58
55497cff 59#ifndef MYMALLOC
de3bb511 60
8d063cd8
LW
61/* paranoid version of malloc */
62
a687059c
LW
63/* NOTE: Do not call the next three routines directly. Use the macros
64 * in handy.h, so that we can easily redefine everything to do tracking of
65 * allocated hunks back to the original New to track down any memory leaks.
20cec16a 66 * XXX This advice seems to be widely ignored :-( --AD August 1996.
a687059c
LW
67 */
68
bd4080b3 69Malloc_t
8d063cd8
LW
70safemalloc(size)
71MEM_SIZE size;
72{
bd4080b3 73 Malloc_t ptr;
55497cff 74#ifdef HAS_64K_LIMIT
62b28dd9 75 if (size > 0xffff) {
760ac839 76 PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH;
79072805 77 my_exit(1);
62b28dd9 78 }
55497cff 79#endif /* HAS_64K_LIMIT */
34de22dd
LW
80#ifdef DEBUGGING
81 if ((long)size < 0)
463ee0b2 82 croak("panic: malloc");
34de22dd 83#endif
8d063cd8 84 ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
79072805 85#if !(defined(I286) || defined(atarist))
760ac839 86 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
79072805 87#else
760ac839 88 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
8d063cd8
LW
89#endif
90 if (ptr != Nullch)
91 return ptr;
7c0587c8
LW
92 else if (nomemok)
93 return Nullch;
8d063cd8 94 else {
760ac839 95 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
79072805 96 my_exit(1);
8d063cd8
LW
97 }
98 /*NOTREACHED*/
99}
100
101/* paranoid version of realloc */
102
bd4080b3 103Malloc_t
8d063cd8 104saferealloc(where,size)
bd4080b3 105Malloc_t where;
8d063cd8
LW
106MEM_SIZE size;
107{
bd4080b3 108 Malloc_t ptr;
ecfc5424 109#if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
bd4080b3 110 Malloc_t realloc();
ecfc5424 111#endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */
8d063cd8 112
55497cff 113#ifdef HAS_64K_LIMIT
5f05dabc
PP
114 if (size > 0xffff) {
115 PerlIO_printf(PerlIO_stderr(),
116 "Reallocation too large: %lx\n", size) FLUSH;
117 my_exit(1);
118 }
55497cff 119#endif /* HAS_64K_LIMIT */
378cc40b 120 if (!where)
463ee0b2 121 croak("Null realloc");
34de22dd
LW
122#ifdef DEBUGGING
123 if ((long)size < 0)
463ee0b2 124 croak("panic: realloc");
34de22dd 125#endif
8d063cd8 126 ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */
79072805
LW
127
128#if !(defined(I286) || defined(atarist))
129 DEBUG_m( {
760ac839
LW
130 PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++);
131 PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
79072805
LW
132 } )
133#else
134 DEBUG_m( {
760ac839
LW
135 PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++);
136 PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
79072805 137 } )
8d063cd8 138#endif
79072805 139
8d063cd8
LW
140 if (ptr != Nullch)
141 return ptr;
7c0587c8
LW
142 else if (nomemok)
143 return Nullch;
8d063cd8 144 else {
760ac839 145 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
79072805 146 my_exit(1);
8d063cd8
LW
147 }
148 /*NOTREACHED*/
149}
150
151/* safe version of free */
152
54310121 153Free_t
8d063cd8 154safefree(where)
bd4080b3 155Malloc_t where;
8d063cd8 156{
79072805 157#if !(defined(I286) || defined(atarist))
760ac839 158 DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
79072805 159#else
760ac839 160 DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
8d063cd8 161#endif
378cc40b 162 if (where) {
de3bb511 163 /*SUPPRESS 701*/
378cc40b
LW
164 free(where);
165 }
8d063cd8
LW
166}
167
1050c9ca
PP
168/* safe version of calloc */
169
bd4080b3 170Malloc_t
1050c9ca
PP
171safecalloc(count, size)
172MEM_SIZE count;
173MEM_SIZE size;
174{
bd4080b3 175 Malloc_t ptr;
1050c9ca 176
55497cff 177#ifdef HAS_64K_LIMIT
5f05dabc
PP
178 if (size * count > 0xffff) {
179 PerlIO_printf(PerlIO_stderr(),
180 "Allocation too large: %lx\n", size * count) FLUSH;
181 my_exit(1);
182 }
55497cff 183#endif /* HAS_64K_LIMIT */
1050c9ca
PP
184#ifdef DEBUGGING
185 if ((long)size < 0 || (long)count < 0)
186 croak("panic: calloc");
187#endif
0b7c1c42
GS
188 size *= count;
189 ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
1050c9ca 190#if !(defined(I286) || defined(atarist))
760ac839 191 DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
1050c9ca 192#else
760ac839 193 DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
1050c9ca 194#endif
1050c9ca
PP
195 if (ptr != Nullch) {
196 memset((void*)ptr, 0, size);
197 return ptr;
198 }
199 else if (nomemok)
200 return Nullch;
201 else {
760ac839 202 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
1050c9ca
PP
203 my_exit(1);
204 }
205 /*NOTREACHED*/
206}
207
55497cff 208#endif /* !MYMALLOC */
de3bb511 209
a687059c
LW
210#ifdef LEAKTEST
211
212#define ALIGN sizeof(long)
8d063cd8 213
bd4080b3 214Malloc_t
a687059c 215safexmalloc(x,size)
79072805 216I32 x;
a687059c 217MEM_SIZE size;
8d063cd8 218{
bd4080b3 219 register Malloc_t where;
8d063cd8 220
a687059c
LW
221 where = safemalloc(size + ALIGN);
222 xcount[x]++;
223 where[0] = x % 100;
224 where[1] = x / 100;
225 return where + ALIGN;
8d063cd8 226}
8d063cd8 227
bd4080b3 228Malloc_t
a687059c 229safexrealloc(where,size)
bd4080b3 230Malloc_t where;
a687059c
LW
231MEM_SIZE size;
232{
bd4080b3 233 register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
a0d0e21e 234 return new + ALIGN;
a687059c
LW
235}
236
237void
238safexfree(where)
bd4080b3 239Malloc_t where;
a687059c 240{
79072805 241 I32 x;
a687059c
LW
242
243 if (!where)
244 return;
245 where -= ALIGN;
246 x = where[0] + 100 * where[1];
247 xcount[x]--;
248 safefree(where);
249}
250
bd4080b3 251Malloc_t
1050c9ca
PP
252safexcalloc(x,count,size)
253I32 x;
254MEM_SIZE count;
255MEM_SIZE size;
256{
bd4080b3 257 register Malloc_t where;
1050c9ca
PP
258
259 where = safexmalloc(x, size * count + ALIGN);
260 xcount[x]++;
261 memset((void*)where + ALIGN, 0, size * count);
262 where[0] = x % 100;
263 where[1] = x / 100;
264 return where + ALIGN;
265}
266
7c0587c8 267static void
a687059c 268xstat()
8d063cd8 269{
79072805 270 register I32 i;
8d063cd8 271
a687059c 272 for (i = 0; i < MAXXCOUNT; i++) {
de3bb511 273 if (xcount[i] > lastxcount[i]) {
760ac839 274 PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
a687059c 275 lastxcount[i] = xcount[i];
8d063cd8
LW
276 }
277 }
8d063cd8 278}
a687059c
LW
279
280#endif /* LEAKTEST */
8d063cd8
LW
281
282/* copy a string up to some (non-backslashed) delimiter, if any */
283
284char *
fc36a67e 285delimcpy(to, toend, from, fromend, delim, retlen)
62b28dd9 286register char *to;
fc36a67e 287register char *toend;
62b28dd9 288register char *from;
a687059c 289register char *fromend;
a0d0e21e 290register int delim;
79072805 291I32 *retlen;
8d063cd8 292{
fc36a67e
PP
293 register I32 tolen;
294 for (tolen = 0; from < fromend; from++, tolen++) {
378cc40b
LW
295 if (*from == '\\') {
296 if (from[1] == delim)
297 from++;
fc36a67e
PP
298 else {
299 if (to < toend)
300 *to++ = *from;
301 tolen++;
302 from++;
303 }
378cc40b 304 }
bedebaa5 305 else if (*from == delim)
8d063cd8 306 break;
fc36a67e
PP
307 if (to < toend)
308 *to++ = *from;
8d063cd8 309 }
bedebaa5
CS
310 if (to < toend)
311 *to = '\0';
fc36a67e 312 *retlen = tolen;
8d063cd8
LW
313 return from;
314}
315
316/* return ptr to little string in big string, NULL if not found */
378cc40b 317/* This routine was donated by Corey Satten. */
8d063cd8
LW
318
319char *
320instr(big, little)
378cc40b
LW
321register char *big;
322register char *little;
323{
324 register char *s, *x;
79072805 325 register I32 first;
378cc40b 326
a687059c
LW
327 if (!little)
328 return big;
329 first = *little++;
378cc40b
LW
330 if (!first)
331 return big;
332 while (*big) {
333 if (*big++ != first)
334 continue;
335 for (x=big,s=little; *s; /**/ ) {
336 if (!*x)
337 return Nullch;
338 if (*s++ != *x++) {
339 s--;
340 break;
341 }
342 }
343 if (!*s)
344 return big-1;
345 }
346 return Nullch;
347}
8d063cd8 348
a687059c
LW
349/* same as instr but allow embedded nulls */
350
351char *
352ninstr(big, bigend, little, lend)
353register char *big;
354register char *bigend;
355char *little;
356char *lend;
8d063cd8 357{
a687059c 358 register char *s, *x;
79072805 359 register I32 first = *little;
a687059c 360 register char *littleend = lend;
378cc40b 361
a0d0e21e 362 if (!first && little >= littleend)
a687059c 363 return big;
de3bb511
LW
364 if (bigend - big < littleend - little)
365 return Nullch;
a687059c
LW
366 bigend -= littleend - little++;
367 while (big <= bigend) {
368 if (*big++ != first)
369 continue;
370 for (x=big,s=little; s < littleend; /**/ ) {
371 if (*s++ != *x++) {
372 s--;
373 break;
374 }
375 }
376 if (s >= littleend)
377 return big-1;
378cc40b 378 }
a687059c
LW
379 return Nullch;
380}
381
382/* reverse of the above--find last substring */
383
384char *
385rninstr(big, bigend, little, lend)
386register char *big;
387char *bigend;
388char *little;
389char *lend;
390{
391 register char *bigbeg;
392 register char *s, *x;
79072805 393 register I32 first = *little;
a687059c
LW
394 register char *littleend = lend;
395
a0d0e21e 396 if (!first && little >= littleend)
a687059c
LW
397 return bigend;
398 bigbeg = big;
399 big = bigend - (littleend - little++);
400 while (big >= bigbeg) {
401 if (*big-- != first)
402 continue;
403 for (x=big+2,s=little; s < littleend; /**/ ) {
404 if (*s++ != *x++) {
405 s--;
406 break;
407 }
408 }
409 if (s >= littleend)
410 return big+1;
378cc40b 411 }
a687059c 412 return Nullch;
378cc40b 413}
a687059c 414
bbce6d69
PP
415/*
416 * Set up for a new ctype locale.
417 */
55497cff 418void
bbce6d69
PP
419perl_new_ctype(newctype)
420 char *newctype;
ef7eada9 421{
36477c24
PP
422#ifdef USE_LOCALE_CTYPE
423
bbce6d69 424 int i;
ef7eada9 425
bbce6d69
PP
426 for (i = 0; i < 256; i++) {
427 if (isUPPER_LC(i))
428 fold_locale[i] = toLOWER_LC(i);
429 else if (isLOWER_LC(i))
430 fold_locale[i] = toUPPER_LC(i);
431 else
432 fold_locale[i] = i;
433 }
bbce6d69 434
36477c24
PP
435#endif /* USE_LOCALE_CTYPE */
436}
bbce6d69
PP
437
438/*
439 * Set up for a new collation locale.
440 */
441void
442perl_new_collate(newcoll)
443 char *newcoll;
444{
36477c24
PP
445#ifdef USE_LOCALE_COLLATE
446
bbce6d69
PP
447 if (! newcoll) {
448 if (collation_name) {
449 ++collation_ix;
450 Safefree(collation_name);
451 collation_name = NULL;
452 collation_standard = TRUE;
bbce6d69
PP
453 collxfrm_base = 0;
454 collxfrm_mult = 2;
bbce6d69
PP
455 }
456 return;
457 }
458
459 if (! collation_name || strNE(collation_name, newcoll)) {
460 ++collation_ix;
461 Safefree(collation_name);
462 collation_name = savepv(newcoll);
ff68c719 463 collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
bbce6d69 464
bbce6d69
PP
465 {
466 /* 2: at most so many chars ('a', 'b'). */
467 /* 50: surely no system expands a char more. */
468#define XFRMBUFSIZE (2 * 50)
469 char xbuf[XFRMBUFSIZE];
470 Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE);
471 Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
472 SSize_t mult = fb - fa;
473 if (mult < 1)
474 croak("strxfrm() gets absurd");
475 collxfrm_base = (fa > mult) ? (fa - mult) : 0;
476 collxfrm_mult = mult;
477 }
bbce6d69 478 }
bbce6d69 479
36477c24
PP
480#endif /* USE_LOCALE_COLLATE */
481}
bbce6d69
PP
482
483/*
484 * Set up for a new numeric locale.
485 */
486void
487perl_new_numeric(newnum)
488 char *newnum;
489{
36477c24
PP
490#ifdef USE_LOCALE_NUMERIC
491
bbce6d69
PP
492 if (! newnum) {
493 if (numeric_name) {
494 Safefree(numeric_name);
495 numeric_name = NULL;
496 numeric_standard = TRUE;
497 numeric_local = TRUE;
498 }
499 return;
500 }
501
502 if (! numeric_name || strNE(numeric_name, newnum)) {
503 Safefree(numeric_name);
504 numeric_name = savepv(newnum);
ff68c719 505 numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
bbce6d69
PP
506 numeric_local = TRUE;
507 }
36477c24
PP
508
509#endif /* USE_LOCALE_NUMERIC */
bbce6d69
PP
510}
511
512void
36477c24 513perl_set_numeric_standard()
bbce6d69 514{
5f05dabc
PP
515#ifdef USE_LOCALE_NUMERIC
516
bbce6d69
PP
517 if (! numeric_standard) {
518 setlocale(LC_NUMERIC, "C");
519 numeric_standard = TRUE;
520 numeric_local = FALSE;
521 }
5f05dabc
PP
522
523#endif /* USE_LOCALE_NUMERIC */
bbce6d69
PP
524}
525
526void
36477c24 527perl_set_numeric_local()
bbce6d69 528{
5f05dabc
PP
529#ifdef USE_LOCALE_NUMERIC
530
bbce6d69
PP
531 if (! numeric_local) {
532 setlocale(LC_NUMERIC, numeric_name);
533 numeric_standard = FALSE;
534 numeric_local = TRUE;
535 }
bbce6d69 536
36477c24 537#endif /* USE_LOCALE_NUMERIC */
5f05dabc 538}
36477c24 539
bbce6d69 540
36477c24
PP
541/*
542 * Initialize locale awareness.
543 */
f0c5b223 544int
1050c9ca 545perl_init_i18nl10n(printwarn)
f0c5b223
TB
546 int printwarn;
547{
548 int ok = 1;
549 /* returns
550 * 1 = set ok or not applicable,
551 * 0 = fallback to C locale,
552 * -1 = fallback to C locale failed
553 */
bbce6d69 554
36477c24 555#ifdef USE_LOCALE
bbce6d69 556
36477c24 557#ifdef USE_LOCALE_CTYPE
bbce6d69 558 char *curctype = NULL;
36477c24
PP
559#endif /* USE_LOCALE_CTYPE */
560#ifdef USE_LOCALE_COLLATE
bbce6d69 561 char *curcoll = NULL;
36477c24
PP
562#endif /* USE_LOCALE_COLLATE */
563#ifdef USE_LOCALE_NUMERIC
bbce6d69 564 char *curnum = NULL;
36477c24 565#endif /* USE_LOCALE_NUMERIC */
02b32252 566 char *lc_all = getenv("LC_ALL");
5f05dabc 567 char *lang = getenv("LANG");
bbce6d69 568 bool setlocale_failure = FALSE;
f0c5b223 569
02b32252
CS
570#ifdef LOCALE_ENVIRON_REQUIRED
571
572 /*
573 * Ultrix setlocale(..., "") fails if there are no environment
574 * variables from which to get a locale name.
575 */
576
577 bool done = FALSE;
578
579#ifdef LC_ALL
580 if (lang) {
581 if (setlocale(LC_ALL, ""))
582 done = TRUE;
583 else
584 setlocale_failure = TRUE;
585 }
586 if (!setlocale_failure)
587#endif /* LC_ALL */
588 {
589#ifdef USE_LOCALE_CTYPE
590 if (! (curctype = setlocale(LC_CTYPE,
591 (!done && (lang || getenv("LC_CTYPE")))
592 ? "" : Nullch)))
593 setlocale_failure = TRUE;
594#endif /* USE_LOCALE_CTYPE */
595#ifdef USE_LOCALE_COLLATE
596 if (! (curcoll = setlocale(LC_COLLATE,
597 (!done && (lang || getenv("LC_COLLATE")))
598 ? "" : Nullch)))
599 setlocale_failure = TRUE;
600#endif /* USE_LOCALE_COLLATE */
601#ifdef USE_LOCALE_NUMERIC
602 if (! (curnum = setlocale(LC_NUMERIC,
603 (!done && (lang || getenv("LC_NUMERIC")))
604 ? "" : Nullch)))
605 setlocale_failure = TRUE;
606#endif /* USE_LOCALE_NUMERIC */
607 }
608
609#else /* !LOCALE_ENVIRON_REQUIRED */
610
bbce6d69 611#ifdef LC_ALL
5f05dabc 612
bbce6d69
PP
613 if (! setlocale(LC_ALL, ""))
614 setlocale_failure = TRUE;
5f05dabc
PP
615 else {
616#ifdef USE_LOCALE_CTYPE
617 curctype = setlocale(LC_CTYPE, Nullch);
618#endif /* USE_LOCALE_CTYPE */
619#ifdef USE_LOCALE_COLLATE
620 curcoll = setlocale(LC_COLLATE, Nullch);
621#endif /* USE_LOCALE_COLLATE */
622#ifdef USE_LOCALE_NUMERIC
623 curnum = setlocale(LC_NUMERIC, Nullch);
624#endif /* USE_LOCALE_NUMERIC */
625 }
626
627#else /* !LC_ALL */
bbce6d69 628
36477c24 629#ifdef USE_LOCALE_CTYPE
5f05dabc 630 if (! (curctype = setlocale(LC_CTYPE, "")))
bbce6d69 631 setlocale_failure = TRUE;
36477c24
PP
632#endif /* USE_LOCALE_CTYPE */
633#ifdef USE_LOCALE_COLLATE
5f05dabc 634 if (! (curcoll = setlocale(LC_COLLATE, "")))
bbce6d69 635 setlocale_failure = TRUE;
36477c24
PP
636#endif /* USE_LOCALE_COLLATE */
637#ifdef USE_LOCALE_NUMERIC
5f05dabc 638 if (! (curnum = setlocale(LC_NUMERIC, "")))
bbce6d69 639 setlocale_failure = TRUE;
36477c24 640#endif /* USE_LOCALE_NUMERIC */
bbce6d69 641
5f05dabc
PP
642#endif /* LC_ALL */
643
02b32252
CS
644#endif /* !LOCALE_ENVIRON_REQUIRED */
645
5f05dabc
PP
646 if (setlocale_failure) {
647 char *p;
648 bool locwarn = (printwarn > 1 ||
649 printwarn &&
650 (!(p = getenv("PERL_BADLANG")) || atoi(p)));
20cec16a 651
5f05dabc
PP
652 if (locwarn) {
653#ifdef LC_ALL
654
655 PerlIO_printf(PerlIO_stderr(),
656 "perl: warning: Setting locale failed.\n");
657
658#else /* !LC_ALL */
659
ef7eada9 660 PerlIO_printf(PerlIO_stderr(),
bbce6d69 661 "perl: warning: Setting locale failed for the categories:\n\t");
36477c24 662#ifdef USE_LOCALE_CTYPE
bbce6d69 663 if (! curctype)
5f05dabc 664 PerlIO_printf(PerlIO_stderr(), "LC_CTYPE ");
36477c24
PP
665#endif /* USE_LOCALE_CTYPE */
666#ifdef USE_LOCALE_COLLATE
bbce6d69 667 if (! curcoll)
5f05dabc 668 PerlIO_printf(PerlIO_stderr(), "LC_COLLATE ");
36477c24
PP
669#endif /* USE_LOCALE_COLLATE */
670#ifdef USE_LOCALE_NUMERIC
bbce6d69 671 if (! curnum)
5f05dabc 672 PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC ");
36477c24 673#endif /* USE_LOCALE_NUMERIC */
bbce6d69
PP
674 PerlIO_printf(PerlIO_stderr(), "\n");
675
5f05dabc
PP
676#endif /* LC_ALL */
677
760ac839 678 PerlIO_printf(PerlIO_stderr(),
bbce6d69 679 "perl: warning: Please check that your locale settings:\n");
ef7eada9
JH
680
681 PerlIO_printf(PerlIO_stderr(),
bbce6d69
PP
682 "\tLC_ALL = %c%s%c,\n",
683 lc_all ? '"' : '(',
684 lc_all ? lc_all : "unset",
685 lc_all ? '"' : ')');
5f05dabc
PP
686
687 {
688 char **e;
689 for (e = environ; *e; e++) {
690 if (strnEQ(*e, "LC_", 3)
691 && strnNE(*e, "LC_ALL=", 7)
692 && (p = strchr(*e, '=')))
693 PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n",
694 (p - *e), *e, p + 1);
695 }
696 }
697
ef7eada9 698 PerlIO_printf(PerlIO_stderr(),
bbce6d69 699 "\tLANG = %c%s%c\n",
5f05dabc 700 lang ? '"' : '(',
bbce6d69
PP
701 lang ? lang : "unset",
702 lang ? '"' : ')');
ef7eada9 703
bbce6d69
PP
704 PerlIO_printf(PerlIO_stderr(),
705 " are supported and installed on your system.\n");
5f05dabc 706 }
ef7eada9 707
5f05dabc
PP
708#ifdef LC_ALL
709
710 if (setlocale(LC_ALL, "C")) {
711 if (locwarn)
712 PerlIO_printf(PerlIO_stderr(),
713 "perl: warning: Falling back to the standard locale (\"C\").\n");
bbce6d69 714 ok = 0;
ef7eada9 715 }
5f05dabc
PP
716 else {
717 if (locwarn)
718 PerlIO_printf(PerlIO_stderr(),
719 "perl: warning: Failed to fall back to the standard locale (\"C\").\n");
720 ok = -1;
721 }
bbce6d69 722
5f05dabc
PP
723#else /* ! LC_ALL */
724
725 if (0
36477c24 726#ifdef USE_LOCALE_CTYPE
5f05dabc 727 || !(curctype || setlocale(LC_CTYPE, "C"))
36477c24
PP
728#endif /* USE_LOCALE_CTYPE */
729#ifdef USE_LOCALE_COLLATE
5f05dabc 730 || !(curcoll || setlocale(LC_COLLATE, "C"))
36477c24
PP
731#endif /* USE_LOCALE_COLLATE */
732#ifdef USE_LOCALE_NUMERIC
5f05dabc 733 || !(curnum || setlocale(LC_NUMERIC, "C"))
36477c24 734#endif /* USE_LOCALE_NUMERIC */
5f05dabc
PP
735 )
736 {
737 if (locwarn)
bbce6d69 738 PerlIO_printf(PerlIO_stderr(),
5f05dabc
PP
739 "perl: warning: Cannot fall back to the standard locale (\"C\").\n");
740 ok = -1;
bbce6d69 741 }
5f05dabc 742
bbce6d69 743#endif /* ! LC_ALL */
5f05dabc
PP
744
745#ifdef USE_LOCALE_CTYPE
746 curctype = setlocale(LC_CTYPE, Nullch);
747#endif /* USE_LOCALE_CTYPE */
748#ifdef USE_LOCALE_COLLATE
749 curcoll = setlocale(LC_COLLATE, Nullch);
750#endif /* USE_LOCALE_COLLATE */
751#ifdef USE_LOCALE_NUMERIC
752 curnum = setlocale(LC_NUMERIC, Nullch);
753#endif /* USE_LOCALE_NUMERIC */
ef7eada9
JH
754 }
755
36477c24 756#ifdef USE_LOCALE_CTYPE
bbce6d69 757 perl_new_ctype(curctype);
36477c24 758#endif /* USE_LOCALE_CTYPE */
bbce6d69 759
36477c24 760#ifdef USE_LOCALE_COLLATE
bbce6d69 761 perl_new_collate(curcoll);
36477c24 762#endif /* USE_LOCALE_COLLATE */
bbce6d69 763
36477c24 764#ifdef USE_LOCALE_NUMERIC
bbce6d69 765 perl_new_numeric(curnum);
36477c24 766#endif /* USE_LOCALE_NUMERIC */
ef7eada9 767
36477c24 768#endif /* USE_LOCALE */
ef7eada9 769
f0c5b223
TB
770 return ok;
771}
772
bbce6d69
PP
773/* Backwards compatibility. */
774int
775perl_init_i18nl14n(printwarn)
776 int printwarn;
777{
5f05dabc 778 return perl_init_i18nl10n(printwarn);
bbce6d69 779}
ef7eada9 780
36477c24 781#ifdef USE_LOCALE_COLLATE
ef7eada9 782
bbce6d69
PP
783/*
784 * mem_collxfrm() is a bit like strxfrm() but with two important
785 * differences. First, it handles embedded NULs. Second, it allocates
786 * a bit more memory than needed for the transformed data itself.
787 * The real transformed data begins at offset sizeof(collationix).
788 * Please see sv_collxfrm() to see how this is used.
789 */
790char *
791mem_collxfrm(s, len, xlen)
792 const char *s;
793 STRLEN len;
794 STRLEN *xlen;
795{
796 char *xbuf;
797 STRLEN xalloc, xin, xout;
798
799 /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */
800 /* the +1 is for the terminating NUL. */
801
802 xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1;
803 New(171, xbuf, xalloc, char);
804 if (! xbuf)
805 goto bad;
806
807 *(U32*)xbuf = collation_ix;
808 xout = sizeof(collation_ix);
809 for (xin = 0; xin < len; ) {
810 SSize_t xused;
811
812 for (;;) {
813 xused = strxfrm(xbuf + xout, s + xin, xalloc - xout);
814 if (xused == -1)
815 goto bad;
816 if (xused < xalloc - xout)
817 break;
818 xalloc = (2 * xalloc) + 1;
819 Renew(xbuf, xalloc, char);
820 if (! xbuf)
821 goto bad;
822 }
ef7eada9 823
bbce6d69
PP
824 xin += strlen(s + xin) + 1;
825 xout += xused;
826
827 /* Embedded NULs are understood but silently skipped
828 * because they make no sense in locale collation. */
829 }
ef7eada9 830
bbce6d69
PP
831 xbuf[xout] = '\0';
832 *xlen = xout - sizeof(collation_ix);
833 return xbuf;
834
835 bad:
836 Safefree(xbuf);
837 *xlen = 0;
838 return NULL;
ef7eada9
JH
839}
840
36477c24 841#endif /* USE_LOCALE_COLLATE */
bbce6d69 842
378cc40b 843void
bbce6d69 844fbm_compile(sv)
79072805 845SV *sv;
378cc40b 846{
a687059c
LW
847 register unsigned char *s;
848 register unsigned char *table;
79072805
LW
849 register U32 i;
850 register U32 len = SvCUR(sv);
851 I32 rarest = 0;
852 U32 frequency = 256;
853
748a9306
LW
854 if (len > 255)
855 return; /* can't have offsets that big */
79072805 856 Sv_Grow(sv,len+258);
463ee0b2 857 table = (unsigned char*)(SvPVX(sv) + len + 1);
a687059c
LW
858 s = table - 2;
859 for (i = 0; i < 256; i++) {
378cc40b
LW
860 table[i] = len;
861 }
862 i = 0;
463ee0b2 863 while (s >= (unsigned char*)(SvPVX(sv)))
a687059c 864 {
bbce6d69
PP
865 if (table[*s] == len)
866 table[*s] = i;
378cc40b
LW
867 s--,i++;
868 }
79072805 869 sv_upgrade(sv, SVt_PVBM);
bbce6d69 870 sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
79072805 871 SvVALID_on(sv);
378cc40b 872
463ee0b2 873 s = (unsigned char*)(SvPVX(sv)); /* deeper magic */
bbce6d69
PP
874 for (i = 0; i < len; i++) {
875 if (freq[s[i]] < frequency) {
876 rarest = i;
877 frequency = freq[s[i]];
378cc40b
LW
878 }
879 }
79072805
LW
880 BmRARE(sv) = s[rarest];
881 BmPREVIOUS(sv) = rarest;
760ac839 882 DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
378cc40b
LW
883}
884
378cc40b 885char *
79072805 886fbm_instr(big, bigend, littlestr)
a687059c
LW
887unsigned char *big;
888register unsigned char *bigend;
79072805 889SV *littlestr;
378cc40b 890{
a687059c 891 register unsigned char *s;
79072805
LW
892 register I32 tmp;
893 register I32 littlelen;
a687059c
LW
894 register unsigned char *little;
895 register unsigned char *table;
896 register unsigned char *olds;
897 register unsigned char *oldlittle;
378cc40b 898
79072805 899 if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
a0d0e21e
LW
900 STRLEN len;
901 char *l = SvPV(littlestr,len);
902 if (!len)
d48672a2 903 return (char*)big;
a0d0e21e 904 return ninstr((char*)big,(char*)bigend, l, l + len);
d48672a2 905 }
378cc40b 906
79072805
LW
907 littlelen = SvCUR(littlestr);
908 if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
0f85fab0
LW
909 if (littlelen > bigend - big)
910 return Nullch;
463ee0b2 911 little = (unsigned char*)SvPVX(littlestr);
bbce6d69 912 s = bigend - littlelen;
36477c24 913 if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
bbce6d69
PP
914 return (char*)s; /* how sweet it is */
915 else if (bigend[-1] == '\n' && little[littlelen-1] != '\n'
916 && s > big) {
917 s--;
36477c24 918 if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
bbce6d69 919 return (char*)s;
a687059c 920 }
bbce6d69 921 return Nullch;
a687059c 922 }
463ee0b2 923 table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1);
62b28dd9
LW
924 if (--littlelen >= bigend - big)
925 return Nullch;
926 s = big + littlelen;
a687059c 927 oldlittle = little = table - 2;
bbce6d69
PP
928 if (s < bigend) {
929 top2:
930 /*SUPPRESS 560*/
931 if (tmp = table[*s]) {
62b28dd9 932#ifdef POINTERRIGOR
bbce6d69
PP
933 if (bigend - s > tmp) {
934 s += tmp;
935 goto top2;
936 }
62b28dd9 937#else
bbce6d69
PP
938 if ((s += tmp) < bigend)
939 goto top2;
62b28dd9 940#endif
bbce6d69 941 return Nullch;
a687059c 942 }
bbce6d69
PP
943 else {
944 tmp = littlelen; /* less expensive than calling strncmp() */
945 olds = s;
946 while (tmp--) {
947 if (*--s == *--little)
948 continue;
949 s = olds + 1; /* here we pay the price for failure */
950 little = oldlittle;
951 if (s < bigend) /* fake up continue to outer loop */
62b28dd9 952 goto top2;
62b28dd9 953 return Nullch;
a687059c 954 }
bbce6d69 955 return (char *)s;
378cc40b
LW
956 }
957 }
958 return Nullch;
959}
960
961char *
962screaminstr(bigstr, littlestr)
79072805
LW
963SV *bigstr;
964SV *littlestr;
378cc40b 965{
a687059c
LW
966 register unsigned char *s, *x;
967 register unsigned char *big;
79072805
LW
968 register I32 pos;
969 register I32 previous;
970 register I32 first;
a687059c
LW
971 register unsigned char *little;
972 register unsigned char *bigend;
973 register unsigned char *littleend;
378cc40b 974
79072805 975 if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
378cc40b 976 return Nullch;
463ee0b2 977 little = (unsigned char *)(SvPVX(littlestr));
79072805 978 littleend = little + SvCUR(littlestr);
378cc40b 979 first = *little++;
79072805 980 previous = BmPREVIOUS(littlestr);
463ee0b2 981 big = (unsigned char *)(SvPVX(bigstr));
79072805 982 bigend = big + SvCUR(bigstr);
378cc40b
LW
983 while (pos < previous) {
984 if (!(pos += screamnext[pos]))
985 return Nullch;
986 }
de3bb511 987#ifdef POINTERRIGOR
bbce6d69
PP
988 do {
989 if (big[pos-previous] != first)
990 continue;
991 for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
992 if (x >= bigend)
993 return Nullch;
994 if (*s++ != *x++) {
995 s--;
996 break;
de3bb511 997 }
bbce6d69
PP
998 }
999 if (s == littleend)
1000 return (char *)(big+pos-previous);
1001 } while ( pos += screamnext[pos] );
de3bb511
LW
1002#else /* !POINTERRIGOR */
1003 big -= previous;
bbce6d69
PP
1004 do {
1005 if (big[pos] != first)
1006 continue;
1007 for (x=big+pos+1,s=little; s < littleend; /**/ ) {
1008 if (x >= bigend)
1009 return Nullch;
1010 if (*s++ != *x++) {
1011 s--;
1012 break;
378cc40b 1013 }
bbce6d69
PP
1014 }
1015 if (s == littleend)
1016 return (char *)(big+pos);
1017 } while ( pos += screamnext[pos] );
de3bb511 1018#endif /* POINTERRIGOR */
8d063cd8
LW
1019 return Nullch;
1020}
1021
79072805 1022I32
bbce6d69
PP
1023ibcmp(s1, s2, len)
1024char *s1, *s2;
79072805
LW
1025register I32 len;
1026{
bbce6d69
PP
1027 register U8 *a = (U8 *)s1;
1028 register U8 *b = (U8 *)s2;
79072805 1029 while (len--) {
bbce6d69
PP
1030 if (*a != *b && *a != fold[*b])
1031 return 1;
1032 a++,b++;
1033 }
1034 return 0;
1035}
1036
1037I32
1038ibcmp_locale(s1, s2, len)
1039char *s1, *s2;
1040register I32 len;
1041{
1042 register U8 *a = (U8 *)s1;
1043 register U8 *b = (U8 *)s2;
1044 while (len--) {
1045 if (*a != *b && *a != fold_locale[*b])
1046 return 1;
1047 a++,b++;
79072805
LW
1048 }
1049 return 0;
1050}
1051
8d063cd8
LW
1052/* copy a string to a safe spot */
1053
1054char *
a0d0e21e 1055savepv(sv)
79072805 1056char *sv;
8d063cd8 1057{
a687059c 1058 register char *newaddr;
8d063cd8 1059
79072805
LW
1060 New(902,newaddr,strlen(sv)+1,char);
1061 (void)strcpy(newaddr,sv);
8d063cd8
LW
1062 return newaddr;
1063}
1064
a687059c
LW
1065/* same thing but with a known length */
1066
1067char *
a0d0e21e 1068savepvn(sv, len)
79072805
LW
1069char *sv;
1070register I32 len;
a687059c
LW
1071{
1072 register char *newaddr;
1073
1074 New(903,newaddr,len+1,char);
79072805 1075 Copy(sv,newaddr,len,char); /* might not be null terminated */
a687059c
LW
1076 newaddr[len] = '\0'; /* is now */
1077 return newaddr;
1078}
1079
fc36a67e
PP
1080/* the SV for form() and mess() is not kept in an arena */
1081
1082static SV *
1083mess_alloc()
1084{
1085 SV *sv;
1086 XPVMG *any;
1087
1088 /* Create as PVMG now, to avoid any upgrading later */
1089 New(905, sv, 1, SV);
1090 Newz(905, any, 1, XPVMG);
1091 SvFLAGS(sv) = SVt_PVMG;
1092 SvANY(sv) = (void*)any;
1093 SvREFCNT(sv) = 1 << 30; /* practically infinite */
1094 return sv;
1095}
1096
a0d0e21e 1097#ifdef I_STDARG
8990e307 1098char *
46fc3d4c 1099form(const char* pat, ...)
a687059c
LW
1100#else
1101/*VARARGS0*/
de3bb511 1102char *
46fc3d4c 1103form(pat, va_alist)
71be2cbc 1104 const char *pat;
46fc3d4c 1105 va_dcl
8990e307
LW
1106#endif
1107{
46fc3d4c
PP
1108 va_list args;
1109#ifdef I_STDARG
1110 va_start(args, pat);
a687059c 1111#else
46fc3d4c 1112 va_start(args);
d48672a2 1113#endif
fc36a67e
PP
1114 if (!mess_sv)
1115 mess_sv = mess_alloc();
1116 sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
46fc3d4c 1117 va_end(args);
fc36a67e 1118 return SvPVX(mess_sv);
46fc3d4c 1119}
a687059c 1120
46fc3d4c
PP
1121char *
1122mess(pat, args)
1123 const char *pat;
1124 va_list *args;
1125{
1126 SV *sv;
1127 static char dgd[] = " during global destruction.\n";
1128
46fc3d4c 1129 if (!mess_sv)
fc36a67e 1130 mess_sv = mess_alloc();
46fc3d4c 1131 sv = mess_sv;
fc36a67e 1132 sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
46fc3d4c 1133 if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
e858de61 1134 dTHR;
2304df62 1135 if (dirty)
46fc3d4c 1136 sv_catpv(sv, dgd);
2304df62 1137 else {
46fc3d4c 1138 if (curcop->cop_line)
fc36a67e 1139 sv_catpvf(sv, " at %_ line %ld",
46fc3d4c 1140 GvSV(curcop->cop_filegv), (long)curcop->cop_line);
c07a80fd
PP
1141 if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) {
1142 bool line_mode = (RsSIMPLE(rs) &&
1143 SvLEN(rs) == 1 && *SvPVX(rs) == '\n');
46fc3d4c
PP
1144 sv_catpvf(sv, ", <%s> %s %ld",
1145 last_in_gv == argvgv ? "" : GvNAME(last_in_gv),
1146 line_mode ? "line" : "chunk",
1147 (long)IoLINES(GvIOp(last_in_gv)));
2304df62 1148 }
46fc3d4c 1149 sv_catpv(sv, ".\n");
a687059c 1150 }
a687059c 1151 }
46fc3d4c 1152 return SvPVX(sv);
a687059c
LW
1153}
1154
ecfc5424 1155#ifdef I_STDARG
36477c24 1156OP *
71be2cbc 1157die(const char* pat, ...)
36477c24
PP
1158#else
1159/*VARARGS0*/
1160OP *
1161die(pat, va_alist)
71be2cbc 1162 const char *pat;
36477c24
PP
1163 va_dcl
1164#endif
1165{
5dc0d613 1166 dTHR;
36477c24
PP
1167 va_list args;
1168 char *message;
035902c7 1169 I32 oldrunlevel = runlevel;
36477c24
PP
1170 int was_in_eval = in_eval;
1171 HV *stash;
1172 GV *gv;
1173 CV *cv;
1174
1175 /* We have to switch back to mainstack or die_where may try to pop
1176 * the eval block from the wrong stack if die is being called from a
1177 * signal handler. - dkindred@cs.cmu.edu */
1178 if (curstack != mainstack) {
1179 dSP;
1180 SWITCHSTACK(curstack, mainstack);
1181 }
1182
1183#ifdef I_STDARG
1184 va_start(args, pat);
1185#else
1186 va_start(args);
1187#endif
1188 message = mess(pat, &args);
1189 va_end(args);
1190
1738f5c4
CS
1191 if (diehook) {
1192 /* sv_2cv might call croak() */
1193 SV *olddiehook = diehook;
1194 ENTER;
1195 SAVESPTR(diehook);
1196 diehook = Nullsv;
1197 cv = sv_2cv(olddiehook, &stash, &gv, 0);
1198 LEAVE;
1199 if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
1200 dSP;
774d564b
PP
1201 SV *msg;
1202
1203 ENTER;
1204 msg = newSVpv(message, 0);
1205 SvREADONLY_on(msg);
1206 SAVEFREESV(msg);
1738f5c4
CS
1207
1208 PUSHMARK(sp);
1209 XPUSHs(msg);
1210 PUTBACK;
1211 perl_call_sv((SV*)cv, G_DISCARD);
1212
774d564b 1213 LEAVE;
1738f5c4 1214 }
36477c24
PP
1215 }
1216
1217 restartop = die_where(message);
1218 if ((!restartop && was_in_eval) || oldrunlevel > 1)
54310121 1219 JMPENV_JUMP(3);
36477c24
PP
1220 return restartop;
1221}
1222
1223#ifdef I_STDARG
79072805 1224void
71be2cbc 1225croak(const char* pat, ...)
463ee0b2 1226#else
8990e307
LW
1227/*VARARGS0*/
1228void
1229croak(pat, va_alist)
1230 char *pat;
1231 va_dcl
463ee0b2 1232#endif
a687059c 1233{
11343788 1234 dTHR;
a687059c 1235 va_list args;
de3bb511 1236 char *message;
748a9306
LW
1237 HV *stash;
1238 GV *gv;
1239 CV *cv;
a687059c 1240
a0d0e21e 1241#ifdef I_STDARG
8990e307
LW
1242 va_start(args, pat);
1243#else
a687059c 1244 va_start(args);
8990e307 1245#endif
2304df62 1246 message = mess(pat, &args);
a687059c 1247 va_end(args);
11343788
MB
1248#ifdef USE_THREADS
1249 DEBUG_L(fprintf(stderr, "croak: 0x%lx %s", (unsigned long) thr, message));
1250#endif /* USE_THREADS */
20cec16a 1251 if (diehook) {
1738f5c4 1252 /* sv_2cv might call croak() */
20cec16a 1253 SV *olddiehook = diehook;
1738f5c4
CS
1254 ENTER;
1255 SAVESPTR(diehook);
1256 diehook = Nullsv;
20cec16a 1257 cv = sv_2cv(olddiehook, &stash, &gv, 0);
1738f5c4
CS
1258 LEAVE;
1259 if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
20cec16a 1260 dSP;
774d564b
PP
1261 SV *msg;
1262
1263 ENTER;
1264 msg = newSVpv(message, 0);
1265 SvREADONLY_on(msg);
1266 SAVEFREESV(msg);
20cec16a
PP
1267
1268 PUSHMARK(sp);
1738f5c4 1269 XPUSHs(msg);
20cec16a
PP
1270 PUTBACK;
1271 perl_call_sv((SV*)cv, G_DISCARD);
36477c24 1272
774d564b 1273 LEAVE;
20cec16a 1274 }
748a9306 1275 }
a0d0e21e
LW
1276 if (in_eval) {
1277 restartop = die_where(message);
54310121 1278 JMPENV_JUMP(3);
a0d0e21e 1279 }
760ac839
LW
1280 PerlIO_puts(PerlIO_stderr(),message);
1281 (void)PerlIO_flush(PerlIO_stderr());
f86702cc 1282 my_failure_exit();
a687059c
LW
1283}
1284
8990e307 1285void
ecfc5424 1286#ifdef I_STDARG
71be2cbc 1287warn(const char* pat,...)
463ee0b2 1288#else
8990e307
LW
1289/*VARARGS0*/
1290warn(pat,va_alist)
71be2cbc 1291 const char *pat;
8990e307 1292 va_dcl
463ee0b2 1293#endif
a687059c
LW
1294{
1295 va_list args;
de3bb511 1296 char *message;
748a9306
LW
1297 HV *stash;
1298 GV *gv;
1299 CV *cv;
a687059c 1300
a0d0e21e 1301#ifdef I_STDARG
8990e307
LW
1302 va_start(args, pat);
1303#else
a687059c 1304 va_start(args);
8990e307 1305#endif
2304df62 1306 message = mess(pat, &args);
a687059c
LW
1307 va_end(args);
1308
20cec16a 1309 if (warnhook) {
1738f5c4 1310 /* sv_2cv might call warn() */
11343788 1311 dTHR;
20cec16a 1312 SV *oldwarnhook = warnhook;
1738f5c4
CS
1313 ENTER;
1314 SAVESPTR(warnhook);
1315 warnhook = Nullsv;
20cec16a 1316 cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
1738f5c4
CS
1317 LEAVE;
1318 if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
20cec16a 1319 dSP;
774d564b
PP
1320 SV *msg;
1321
1322 ENTER;
1323 msg = newSVpv(message, 0);
1324 SvREADONLY_on(msg);
1325 SAVEFREESV(msg);
1326
20cec16a 1327 PUSHMARK(sp);
774d564b 1328 XPUSHs(msg);
20cec16a
PP
1329 PUTBACK;
1330 perl_call_sv((SV*)cv, G_DISCARD);
774d564b
PP
1331
1332 LEAVE;
20cec16a
PP
1333 return;
1334 }
748a9306 1335 }
20cec16a 1336 PerlIO_puts(PerlIO_stderr(),message);
a687059c 1337#ifdef LEAKTEST
20cec16a 1338 DEBUG_L(xstat());
a687059c 1339#endif
20cec16a 1340 (void)PerlIO_flush(PerlIO_stderr());
a687059c 1341}
8d063cd8 1342
a0d0e21e 1343#ifndef VMS /* VMS' my_setenv() is in VMS.c */
68dc0745 1344#ifndef _WIN32
8d063cd8 1345void
7c0587c8 1346my_setenv(nam,val)
8d063cd8
LW
1347char *nam, *val;
1348{
79072805 1349 register I32 i=setenv_getix(nam); /* where does it go? */
8d063cd8 1350
fe14fcc3 1351 if (environ == origenviron) { /* need we copy environment? */
79072805
LW
1352 I32 j;
1353 I32 max;
fe14fcc3
LW
1354 char **tmpenv;
1355
de3bb511 1356 /*SUPPRESS 530*/
fe14fcc3
LW
1357 for (max = i; environ[max]; max++) ;
1358 New(901,tmpenv, max+2, char*);
1359 for (j=0; j<max; j++) /* copy environment */
a0d0e21e 1360 tmpenv[j] = savepv(environ[j]);
fe14fcc3
LW
1361 tmpenv[max] = Nullch;
1362 environ = tmpenv; /* tell exec where it is now */
1363 }
a687059c 1364 if (!val) {
e5ebf479 1365 Safefree(environ[i]);
a687059c
LW
1366 while (environ[i]) {
1367 environ[i] = environ[i+1];
1368 i++;
1369 }
1370 return;
1371 }
8d063cd8 1372 if (!environ[i]) { /* does not exist yet */
fe14fcc3 1373 Renew(environ, i+2, char*); /* just expand it a bit */
8d063cd8
LW
1374 environ[i+1] = Nullch; /* make sure it's null terminated */
1375 }
fe14fcc3
LW
1376 else
1377 Safefree(environ[i]);
a687059c 1378 New(904, environ[i], strlen(nam) + strlen(val) + 2, char);
62b28dd9 1379#ifndef MSDOS
a687059c 1380 (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
62b28dd9
LW
1381#else
1382 /* MS-DOS requires environment variable names to be in uppercase */
fe14fcc3
LW
1383 /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but
1384 * some utilities and applications may break because they only look
1385 * for upper case strings. (Fixed strupr() bug here.)]
1386 */
1387 strcpy(environ[i],nam); strupr(environ[i]);
62b28dd9
LW
1388 (void)sprintf(environ[i] + strlen(nam),"=%s",val);
1389#endif /* MSDOS */
8d063cd8
LW
1390}
1391
79072805
LW
1392I32
1393setenv_getix(nam)
8d063cd8
LW
1394char *nam;
1395{
79072805 1396 register I32 i, len = strlen(nam);
8d063cd8
LW
1397
1398 for (i = 0; environ[i]; i++) {
1399 if (strnEQ(environ[i],nam,len) && environ[i][len] == '=')
1400 break; /* strnEQ must come first to avoid */
1401 } /* potential SEGV's */
1402 return i;
1403}
68dc0745
PP
1404
1405#else /* if _WIN32 */
1406
1407void
1408my_setenv(nam,val)
1409char *nam, *val;
1410{
1411 register char *envstr;
1412 STRLEN namlen = strlen(nam);
1413 STRLEN vallen = strlen(val ? val : "");
1414
fc36a67e 1415 New(904, envstr, namlen + vallen + 3, char);
68dc0745
PP
1416 (void)sprintf(envstr,"%s=%s",nam,val);
1417 if (!vallen) {
1418 /* An attempt to delete the entry.
1419 * We try to fix a Win32 process handling goof: Children
1420 * of the current process will end up seeing the
1421 * grandparent's entry if the current process has never
1422 * modified the entry being deleted. So we call _putenv()
1423 * twice: once to pretend to modify the entry, and the
1424 * second time to actually delete it. GSAR 97-03-19
1425 */
1426 envstr[namlen+1] = 'X'; envstr[namlen+2] = '\0';
1427 (void)_putenv(envstr);
1428 envstr[namlen+1] = '\0';
1429 }
1430 (void)_putenv(envstr);
1431}
1432
1433#endif /* _WIN32 */
a0d0e21e 1434#endif /* !VMS */
378cc40b 1435
16d20bd9 1436#ifdef UNLINK_ALL_VERSIONS
79072805 1437I32
378cc40b
LW
1438unlnk(f) /* unlink all versions of a file */
1439char *f;
1440{
79072805 1441 I32 i;
378cc40b
LW
1442
1443 for (i = 0; unlink(f) >= 0; i++) ;
1444 return i ? 0 : -1;
1445}
1446#endif
1447
85e6fe83 1448#if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
378cc40b 1449char *
7c0587c8 1450my_bcopy(from,to,len)
378cc40b
LW
1451register char *from;
1452register char *to;
79072805 1453register I32 len;
378cc40b
LW
1454{
1455 char *retval = to;
1456
7c0587c8
LW
1457 if (from - to >= 0) {
1458 while (len--)
1459 *to++ = *from++;
1460 }
1461 else {
1462 to += len;
1463 from += len;
1464 while (len--)
faf8582f 1465 *(--to) = *(--from);
7c0587c8 1466 }
378cc40b
LW
1467 return retval;
1468}
ffed7fef 1469#endif
378cc40b 1470
fc36a67e
PP
1471#ifndef HAS_MEMSET
1472void *
1473my_memset(loc,ch,len)
1474register char *loc;
1475register I32 ch;
1476register I32 len;
1477{
1478 char *retval = loc;
1479
1480 while (len--)
1481 *loc++ = ch;
1482 return retval;
1483}
1484#endif
1485
7c0587c8 1486#if !defined(HAS_BZERO) && !defined(HAS_MEMSET)
378cc40b 1487char *
7c0587c8 1488my_bzero(loc,len)
378cc40b 1489register char *loc;
79072805 1490register I32 len;
378cc40b
LW
1491{
1492 char *retval = loc;
1493
1494 while (len--)
1495 *loc++ = 0;
1496 return retval;
1497}
1498#endif
7c0587c8 1499
36477c24 1500#if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP)
79072805 1501I32
7c0587c8 1502my_memcmp(s1,s2,len)
36477c24
PP
1503char *s1;
1504char *s2;
79072805 1505register I32 len;
7c0587c8 1506{
36477c24
PP
1507 register U8 *a = (U8 *)s1;
1508 register U8 *b = (U8 *)s2;
79072805 1509 register I32 tmp;
7c0587c8
LW
1510
1511 while (len--) {
36477c24 1512 if (tmp = *a++ - *b++)
7c0587c8
LW
1513 return tmp;
1514 }
1515 return 0;
1516}
36477c24 1517#endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */
a687059c 1518
4633a7c4 1519#if defined(I_STDARG) || defined(I_VARARGS)
fe14fcc3 1520#ifndef HAS_VPRINTF
a687059c 1521
85e6fe83 1522#ifdef USE_CHAR_VSPRINTF
a687059c
LW
1523char *
1524#else
1525int
1526#endif
1527vsprintf(dest, pat, args)
71be2cbc
PP
1528char *dest;
1529const char *pat;
1530char *args;
a687059c
LW
1531{
1532 FILE fakebuf;
1533
1534 fakebuf._ptr = dest;
1535 fakebuf._cnt = 32767;
35c8bce7
LW
1536#ifndef _IOSTRG
1537#define _IOSTRG 0
1538#endif
a687059c
LW
1539 fakebuf._flag = _IOWRT|_IOSTRG;
1540 _doprnt(pat, args, &fakebuf); /* what a kludge */
1541 (void)putc('\0', &fakebuf);
85e6fe83 1542#ifdef USE_CHAR_VSPRINTF
a687059c
LW
1543 return(dest);
1544#else
1545 return 0; /* perl doesn't use return value */
1546#endif
1547}
1548
fe14fcc3 1549#endif /* HAS_VPRINTF */
4633a7c4 1550#endif /* I_VARARGS || I_STDARGS */
a687059c
LW
1551
1552#ifdef MYSWAP
ffed7fef 1553#if BYTEORDER != 0x4321
a687059c 1554short
748a9306 1555#ifndef CAN_PROTOTYPE
a687059c
LW
1556my_swap(s)
1557short s;
748a9306
LW
1558#else
1559my_swap(short s)
1560#endif
a687059c
LW
1561{
1562#if (BYTEORDER & 1) == 0
1563 short result;
1564
1565 result = ((s & 255) << 8) + ((s >> 8) & 255);
1566 return result;
1567#else
1568 return s;
1569#endif
1570}
1571
1572long
748a9306
LW
1573#ifndef CAN_PROTOTYPE
1574my_htonl(l)
a687059c 1575register long l;
748a9306
LW
1576#else
1577my_htonl(long l)
1578#endif
a687059c
LW
1579{
1580 union {
1581 long result;
ffed7fef 1582 char c[sizeof(long)];
a687059c
LW
1583 } u;
1584
ffed7fef 1585#if BYTEORDER == 0x1234
a687059c
LW
1586 u.c[0] = (l >> 24) & 255;
1587 u.c[1] = (l >> 16) & 255;
1588 u.c[2] = (l >> 8) & 255;
1589 u.c[3] = l & 255;
1590 return u.result;
1591#else
ffed7fef 1592#if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
463ee0b2 1593 croak("Unknown BYTEORDER\n");
a687059c 1594#else
79072805
LW
1595 register I32 o;
1596 register I32 s;
a687059c 1597
ffed7fef
LW
1598 for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) {
1599 u.c[o & 0xf] = (l >> s) & 255;
a687059c
LW
1600 }
1601 return u.result;
1602#endif
1603#endif
1604}
1605
1606long
748a9306
LW
1607#ifndef CAN_PROTOTYPE
1608my_ntohl(l)
a687059c 1609register long l;
748a9306
LW
1610#else
1611my_ntohl(long l)
1612#endif
a687059c
LW
1613{
1614 union {
1615 long l;
ffed7fef 1616 char c[sizeof(long)];
a687059c
LW
1617 } u;
1618
ffed7fef 1619#if BYTEORDER == 0x1234
a687059c
LW
1620 u.c[0] = (l >> 24) & 255;
1621 u.c[1] = (l >> 16) & 255;
1622 u.c[2] = (l >> 8) & 255;
1623 u.c[3] = l & 255;
1624 return u.l;
1625#else
ffed7fef 1626#if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
463ee0b2 1627 croak("Unknown BYTEORDER\n");
a687059c 1628#else
79072805
LW
1629 register I32 o;
1630 register I32 s;
a687059c
LW
1631
1632 u.l = l;
1633 l = 0;
ffed7fef
LW
1634 for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) {
1635 l |= (u.c[o & 0xf] & 255) << s;
a687059c
LW
1636 }
1637 return l;
1638#endif
1639#endif
1640}
1641
ffed7fef 1642#endif /* BYTEORDER != 0x4321 */
988174c1
LW
1643#endif /* MYSWAP */
1644
1645/*
1646 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1647 * If these functions are defined,
1648 * the BYTEORDER is neither 0x1234 nor 0x4321.
1649 * However, this is not assumed.
1650 * -DWS
1651 */
1652
1653#define HTOV(name,type) \
1654 type \
1655 name (n) \
1656 register type n; \
1657 { \
1658 union { \
1659 type value; \
1660 char c[sizeof(type)]; \
1661 } u; \
79072805
LW
1662 register I32 i; \
1663 register I32 s; \
988174c1
LW
1664 for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
1665 u.c[i] = (n >> s) & 0xFF; \
1666 } \
1667 return u.value; \
1668 }
1669
1670#define VTOH(name,type) \
1671 type \
1672 name (n) \
1673 register type n; \
1674 { \
1675 union { \
1676 type value; \
1677 char c[sizeof(type)]; \
1678 } u; \
79072805
LW
1679 register I32 i; \
1680 register I32 s; \
988174c1
LW
1681 u.value = n; \
1682 n = 0; \
1683 for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
1684 n += (u.c[i] & 0xFF) << s; \
1685 } \
1686 return n; \
1687 }
1688
1689#if defined(HAS_HTOVS) && !defined(htovs)
1690HTOV(htovs,short)
1691#endif
1692#if defined(HAS_HTOVL) && !defined(htovl)
1693HTOV(htovl,long)
1694#endif
1695#if defined(HAS_VTOHS) && !defined(vtohs)
1696VTOH(vtohs,short)
1697#endif
1698#if defined(HAS_VTOHL) && !defined(vtohl)
1699VTOH(vtohl,long)
1700#endif
a687059c 1701
5f05dabc
PP
1702 /* VMS' my_popen() is in VMS.c, same with OS/2. */
1703#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
760ac839 1704PerlIO *
79072805 1705my_popen(cmd,mode)
a687059c
LW
1706char *cmd;
1707char *mode;
1708{
1709 int p[2];
79072805
LW
1710 register I32 this, that;
1711 register I32 pid;
1712 SV *sv;
1738f5c4 1713 I32 doexec = strNE(cmd,"-");
a687059c 1714
ddcf38b7
IZ
1715#ifdef OS2
1716 if (doexec) {
1717 return my_syspopen(cmd,mode);
1718 }
1719#endif
a687059c
LW
1720 if (pipe(p) < 0)
1721 return Nullfp;
1722 this = (*mode == 'w');
1723 that = !this;
bbce6d69
PP
1724 if (doexec && tainting) {
1725 taint_env();
1726 taint_proper("Insecure %s%s", "EXEC");
d48672a2 1727 }
a687059c
LW
1728 while ((pid = (doexec?vfork():fork())) < 0) {
1729 if (errno != EAGAIN) {
1730 close(p[this]);
1731 if (!doexec)
463ee0b2 1732 croak("Can't fork");
a687059c
LW
1733 return Nullfp;
1734 }
1735 sleep(5);
1736 }
1737 if (pid == 0) {
79072805
LW
1738 GV* tmpgv;
1739
a687059c
LW
1740#define THIS that
1741#define THAT this
1742 close(p[THAT]);
1743 if (p[THIS] != (*mode == 'r')) {
1744 dup2(p[THIS], *mode == 'r');
1745 close(p[THIS]);
1746 }
1747 if (doexec) {
a0d0e21e 1748#if !defined(HAS_FCNTL) || !defined(F_SETFD)
ae986130
LW
1749 int fd;
1750
1751#ifndef NOFILE
1752#define NOFILE 20
1753#endif
d48672a2 1754 for (fd = maxsysfd + 1; fd < NOFILE; fd++)
ae986130
LW
1755 close(fd);
1756#endif
a687059c
LW
1757 do_exec(cmd); /* may or may not use the shell */
1758 _exit(1);
1759 }
de3bb511 1760 /*SUPPRESS 560*/
85e6fe83 1761 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
1e422769 1762 sv_setiv(GvSV(tmpgv), (IV)getpid());
9f68db38 1763 forkprocess = 0;
463ee0b2 1764 hv_clear(pidstatus); /* we have no children */
a687059c
LW
1765 return Nullfp;
1766#undef THIS
1767#undef THAT
1768 }
62b28dd9 1769 do_execfree(); /* free any memory malloced by child on vfork */
a687059c 1770 close(p[that]);
62b28dd9
LW
1771 if (p[that] < p[this]) {
1772 dup2(p[this], p[that]);
1773 close(p[this]);
1774 p[this] = p[that];
1775 }
79072805 1776 sv = *av_fetch(fdpid,p[this],TRUE);
a0d0e21e 1777 (void)SvUPGRADE(sv,SVt_IV);
463ee0b2 1778 SvIVX(sv) = pid;
a687059c 1779 forkprocess = pid;
760ac839 1780 return PerlIO_fdopen(p[this], mode);
a687059c 1781}
7c0587c8 1782#else
55497cff 1783#if defined(atarist) || defined(DJGPP)
7c0587c8 1784FILE *popen();
760ac839 1785PerlIO *
79072805 1786my_popen(cmd,mode)
7c0587c8
LW
1787char *cmd;
1788char *mode;
1789{
760ac839 1790 /* Needs work for PerlIO ! */
55497cff
PP
1791 /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */
1792 return popen(PerlIO_exportFILE(cmd, 0), mode);
7c0587c8
LW
1793}
1794#endif
1795
1796#endif /* !DOSISH */
a687059c 1797
748a9306 1798#ifdef DUMP_FDS
79072805 1799dump_fds(s)
ae986130
LW
1800char *s;
1801{
1802 int fd;
1803 struct stat tmpstatbuf;
1804
760ac839 1805 PerlIO_printf(PerlIO_stderr(),"%s", s);
ae986130 1806 for (fd = 0; fd < 32; fd++) {
a0d0e21e 1807 if (Fstat(fd,&tmpstatbuf) >= 0)
760ac839 1808 PerlIO_printf(PerlIO_stderr()," %d",fd);
ae986130 1809 }
760ac839 1810 PerlIO_printf(PerlIO_stderr(),"\n");
ae986130
LW
1811}
1812#endif
1813
fe14fcc3 1814#ifndef HAS_DUP2
fec02dd3 1815int
a687059c
LW
1816dup2(oldfd,newfd)
1817int oldfd;
1818int newfd;
1819{
a0d0e21e 1820#if defined(HAS_FCNTL) && defined(F_DUPFD)
fec02dd3
AD
1821 if (oldfd == newfd)
1822 return oldfd;
62b28dd9 1823 close(newfd);
fec02dd3 1824 return fcntl(oldfd, F_DUPFD, newfd);
62b28dd9 1825#else
fc36a67e
PP
1826#define DUP2_MAX_FDS 256
1827 int fdtmp[DUP2_MAX_FDS];
79072805 1828 I32 fdx = 0;
ae986130
LW
1829 int fd;
1830
fe14fcc3 1831 if (oldfd == newfd)
fec02dd3 1832 return oldfd;
a687059c 1833 close(newfd);
fc36a67e
PP
1834 /* good enough for low fd's... */
1835 while ((fd = dup(oldfd)) != newfd && fd >= 0) {
1836 if (fdx >= DUP2_MAX_FDS) {
1837 close(fd);
1838 fd = -1;
1839 break;
1840 }
ae986130 1841 fdtmp[fdx++] = fd;
fc36a67e 1842 }
ae986130
LW
1843 while (fdx > 0)
1844 close(fdtmp[--fdx]);
fec02dd3 1845 return fd;
62b28dd9 1846#endif
a687059c
LW
1847}
1848#endif
1849
ff68c719
PP
1850
1851#ifdef HAS_SIGACTION
1852
1853Sighandler_t
1854rsignal(signo, handler)
1855int signo;
1856Sighandler_t handler;
1857{
1858 struct sigaction act, oact;
1859
1860 act.sa_handler = handler;
1861 sigemptyset(&act.sa_mask);
1862 act.sa_flags = 0;
1863#ifdef SA_RESTART
1864 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
1865#endif
1866 if (sigaction(signo, &act, &oact) == -1)
36477c24 1867 return SIG_ERR;
ff68c719 1868 else
36477c24 1869 return oact.sa_handler;
ff68c719
PP
1870}
1871
1872Sighandler_t
1873rsignal_state(signo)
1874int signo;
1875{
1876 struct sigaction oact;
1877
1878 if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1)
1879 return SIG_ERR;
1880 else
1881 return oact.sa_handler;
1882}
1883
1884int
1885rsignal_save(signo, handler, save)
1886int signo;
1887Sighandler_t handler;
1888Sigsave_t *save;
1889{
1890 struct sigaction act;
1891
1892 act.sa_handler = handler;
1893 sigemptyset(&act.sa_mask);
1894 act.sa_flags = 0;
1895#ifdef SA_RESTART
1896 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
1897#endif
1898 return sigaction(signo, &act, save);
1899}
1900
1901int
1902rsignal_restore(signo, save)
1903int signo;
1904Sigsave_t *save;
1905{
1906 return sigaction(signo, save, (struct sigaction *)NULL);
1907}
1908
1909#else /* !HAS_SIGACTION */
1910
1911Sighandler_t
1912rsignal(signo, handler)
1913int signo;
1914Sighandler_t handler;
1915{
1916 return signal(signo, handler);
1917}
1918
1919static int sig_trapped;
1920
1921static
1922Signal_t
1923sig_trap(signo)
1924int signo;
1925{
1926 sig_trapped++;
1927}
1928
1929Sighandler_t
1930rsignal_state(signo)
1931int signo;
1932{
1933 Sighandler_t oldsig;
1934
1935 sig_trapped = 0;
1936 oldsig = signal(signo, sig_trap);
1937 signal(signo, oldsig);
1938 if (sig_trapped)
1939 kill(getpid(), signo);
1940 return oldsig;
1941}
1942
1943int
1944rsignal_save(signo, handler, save)
1945int signo;
1946Sighandler_t handler;
1947Sigsave_t *save;
1948{
1949 *save = signal(signo, handler);
1950 return (*save == SIG_ERR) ? -1 : 0;
1951}
1952
1953int
36477c24 1954rsignal_restore(signo, save)
ff68c719
PP
1955int signo;
1956Sigsave_t *save;
1957{
1958 return (signal(signo, *save) == SIG_ERR) ? -1 : 0;
1959}
1960
1961#endif /* !HAS_SIGACTION */
1962
5f05dabc
PP
1963 /* VMS' my_pclose() is in VMS.c; same with OS/2 */
1964#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
79072805
LW
1965I32
1966my_pclose(ptr)
760ac839 1967PerlIO *ptr;
a687059c 1968{
ff68c719 1969 Sigsave_t hstat, istat, qstat;
a687059c 1970 int status;
a0d0e21e 1971 SV **svp;
20188a90 1972 int pid;
03136e13
CS
1973 bool close_failed;
1974 int saved_errno;
1975#ifdef VMS
1976 int saved_vaxc_errno;
1977#endif
a687059c 1978
760ac839 1979 svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE);
748a9306 1980 pid = (int)SvIVX(*svp);
a0d0e21e
LW
1981 SvREFCNT_dec(*svp);
1982 *svp = &sv_undef;
ddcf38b7
IZ
1983#ifdef OS2
1984 if (pid == -1) { /* Opened by popen. */
1985 return my_syspclose(ptr);
1986 }
1987#endif
03136e13
CS
1988 if ((close_failed = (PerlIO_close(ptr) == EOF))) {
1989 saved_errno = errno;
1990#ifdef VMS
1991 saved_vaxc_errno = vaxc$errno;
1992#endif
1993 }
7c0587c8
LW
1994#ifdef UTS
1995 if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */
1996#endif
ff68c719
PP
1997 rsignal_save(SIGHUP, SIG_IGN, &hstat);
1998 rsignal_save(SIGINT, SIG_IGN, &istat);
1999 rsignal_save(SIGQUIT, SIG_IGN, &qstat);
748a9306
LW
2000 do {
2001 pid = wait4pid(pid, &status, 0);
2002 } while (pid == -1 && errno == EINTR);
ff68c719
PP
2003 rsignal_restore(SIGHUP, &hstat);
2004 rsignal_restore(SIGINT, &istat);
2005 rsignal_restore(SIGQUIT, &qstat);
03136e13
CS
2006 if (close_failed) {
2007 SETERRNO(saved_errno, saved_vaxc_errno);
2008 return -1;
2009 }
2010 return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status));
20188a90 2011}
4633a7c4
LW
2012#endif /* !DOSISH */
2013
2014#if !defined(DOSISH) || defined(OS2)
79072805 2015I32
20188a90
LW
2016wait4pid(pid,statusp,flags)
2017int pid;
2018int *statusp;
2019int flags;
2020{
79072805
LW
2021 SV *sv;
2022 SV** svp;
fc36a67e 2023 char spid[TYPE_CHARS(int)];
20188a90
LW
2024
2025 if (!pid)
2026 return -1;
20188a90
LW
2027 if (pid > 0) {
2028 sprintf(spid, "%d", pid);
79072805
LW
2029 svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE);
2030 if (svp && *svp != &sv_undef) {
463ee0b2 2031 *statusp = SvIVX(*svp);
748a9306 2032 (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
20188a90
LW
2033 return pid;
2034 }
2035 }
2036 else {
79072805 2037 HE *entry;
20188a90 2038
79072805
LW
2039 hv_iterinit(pidstatus);
2040 if (entry = hv_iternext(pidstatus)) {
a0d0e21e 2041 pid = atoi(hv_iterkey(entry,(I32*)statusp));
79072805 2042 sv = hv_iterval(pidstatus,entry);
463ee0b2 2043 *statusp = SvIVX(sv);
20188a90 2044 sprintf(spid, "%d", pid);
748a9306 2045 (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
20188a90
LW
2046 return pid;
2047 }
2048 }
79072805
LW
2049#ifdef HAS_WAITPID
2050 return waitpid(pid,statusp,flags);
2051#else
a0d0e21e
LW
2052#ifdef HAS_WAIT4
2053 return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
2054#else
2055 {
2056 I32 result;
2057 if (flags)
2058 croak("Can't do waitpid with flags");
2059 else {
2060 while ((result = wait(statusp)) != pid && pid > 0 && result >= 0)
2061 pidgone(result,*statusp);
2062 if (result < 0)
2063 *statusp = -1;
2064 }
2065 return result;
a687059c
LW
2066 }
2067#endif
20188a90 2068#endif
a687059c 2069}
7c0587c8 2070#endif /* !DOSISH */
a687059c 2071
7c0587c8 2072void
de3bb511 2073/*SUPPRESS 590*/
a687059c
LW
2074pidgone(pid,status)
2075int pid;
2076int status;
2077{
79072805 2078 register SV *sv;
fc36a67e 2079 char spid[TYPE_CHARS(int)];
a687059c 2080
20188a90 2081 sprintf(spid, "%d", pid);
79072805 2082 sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE);
a0d0e21e 2083 (void)SvUPGRADE(sv,SVt_IV);
463ee0b2 2084 SvIVX(sv) = status;
20188a90 2085 return;
a687059c
LW
2086}
2087
55497cff 2088#if defined(atarist) || defined(OS2) || defined(DJGPP)
7c0587c8 2089int pclose();
ddcf38b7
IZ
2090#ifdef HAS_FORK
2091int /* Cannot prototype with I32
2092 in os2ish.h. */
2093my_syspclose(ptr)
2094#else
79072805
LW
2095I32
2096my_pclose(ptr)
ddcf38b7 2097#endif
760ac839 2098PerlIO *ptr;
a687059c 2099{
760ac839
LW
2100 /* Needs work for PerlIO ! */
2101 FILE *f = PerlIO_findFILE(ptr);
2102 I32 result = pclose(f);
2103 PerlIO_releaseFILE(ptr,f);
2104 return result;
a687059c 2105}
7c0587c8 2106#endif
9f68db38
LW
2107
2108void
2109repeatcpy(to,from,len,count)
2110register char *to;
2111register char *from;
79072805
LW
2112I32 len;
2113register I32 count;
9f68db38 2114{
79072805 2115 register I32 todo;
9f68db38
LW
2116 register char *frombase = from;
2117
2118 if (len == 1) {
2119 todo = *from;
2120 while (count-- > 0)
2121 *to++ = todo;
2122 return;
2123 }
2124 while (count-- > 0) {
2125 for (todo = len; todo > 0; todo--) {
2126 *to++ = *from++;
2127 }
2128 from = frombase;
2129 }
2130}
0f85fab0
LW
2131
2132#ifndef CASTNEGFLOAT
463ee0b2 2133U32
79072805 2134cast_ulong(f)
0f85fab0
LW
2135double f;
2136{
2137 long along;
2138
27e2fb84 2139#if CASTFLAGS & 2
34de22dd
LW
2140# define BIGDOUBLE 2147483648.0
2141 if (f >= BIGDOUBLE)
2142 return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000;
2143#endif
0f85fab0
LW
2144 if (f >= 0.0)
2145 return (unsigned long)f;
2146 along = (long)f;
2147 return (unsigned long)along;
2148}
ed6116ce
LW
2149# undef BIGDOUBLE
2150#endif
2151
2152#ifndef CASTI32
5d94fbed 2153
5d94fbed
AD
2154/* Unfortunately, on some systems the cast_uv() function doesn't
2155 work with the system-supplied definition of ULONG_MAX. The
2156 comparison (f >= ULONG_MAX) always comes out true. It must be a
2157 problem with the compiler constant folding.
2158
2159 In any case, this workaround should be fine on any two's complement
2160 system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your
2161 ccflags.
2162 --Andy Dougherty <doughera@lafcol.lafayette.edu>
2163*/
1eb770ff
PP
2164
2165/* Code modified to prefer proper named type ranges, I32, IV, or UV, instead
2166 of LONG_(MIN/MAX).
2167 -- Kenneth Albanowski <kjahds@kjahds.com>
2168*/
2169
20cec16a
PP
2170#ifndef MY_UV_MAX
2171# define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1)
5d94fbed
AD
2172#endif
2173
ed6116ce
LW
2174I32
2175cast_i32(f)
2176double f;
2177{
20cec16a
PP
2178 if (f >= I32_MAX)
2179 return (I32) I32_MAX;
2180 if (f <= I32_MIN)
2181 return (I32) I32_MIN;
ed6116ce
LW
2182 return (I32) f;
2183}
a0d0e21e
LW
2184
2185IV
2186cast_iv(f)
2187double f;
2188{
20cec16a
PP
2189 if (f >= IV_MAX)
2190 return (IV) IV_MAX;
2191 if (f <= IV_MIN)
2192 return (IV) IV_MIN;
a0d0e21e
LW
2193 return (IV) f;
2194}
5d94fbed
AD
2195
2196UV
2197cast_uv(f)
2198double f;
2199{
20cec16a
PP
2200 if (f >= MY_UV_MAX)
2201 return (UV) MY_UV_MAX;
5d94fbed
AD
2202 return (UV) f;
2203}
2204
0f85fab0 2205#endif
62b28dd9 2206
fe14fcc3 2207#ifndef HAS_RENAME
79072805 2208I32
62b28dd9
LW
2209same_dirent(a,b)
2210char *a;
2211char *b;
2212{
93a17b20
LW
2213 char *fa = strrchr(a,'/');
2214 char *fb = strrchr(b,'/');
62b28dd9
LW
2215 struct stat tmpstatbuf1;
2216 struct stat tmpstatbuf2;
46fc3d4c 2217 SV *tmpsv = sv_newmortal();
62b28dd9
LW
2218
2219 if (fa)
2220 fa++;
2221 else
2222 fa = a;
2223 if (fb)
2224 fb++;
2225 else
2226 fb = b;
2227 if (strNE(a,b))
2228 return FALSE;
2229 if (fa == a)
46fc3d4c 2230 sv_setpv(tmpsv, ".");
62b28dd9 2231 else
46fc3d4c
PP
2232 sv_setpvn(tmpsv, a, fa - a);
2233 if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0)
62b28dd9
LW
2234 return FALSE;
2235 if (fb == b)
46fc3d4c 2236 sv_setpv(tmpsv, ".");
62b28dd9 2237 else
46fc3d4c
PP
2238 sv_setpvn(tmpsv, b, fb - b);
2239 if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0)
62b28dd9
LW
2240 return FALSE;
2241 return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev &&
2242 tmpstatbuf1.st_ino == tmpstatbuf2.st_ino;
2243}
fe14fcc3
LW
2244#endif /* !HAS_RENAME */
2245
55497cff 2246UV
79072805 2247scan_oct(start, len, retlen)
fe14fcc3 2248char *start;
79072805
LW
2249I32 len;
2250I32 *retlen;
fe14fcc3
LW
2251{
2252 register char *s = start;
55497cff
PP
2253 register UV retval = 0;
2254 bool overflowed = FALSE;
fe14fcc3 2255
748a9306 2256 while (len && *s >= '0' && *s <= '7') {
55497cff
PP
2257 register UV n = retval << 3;
2258 if (!overflowed && (n >> 3) != retval) {
2259 warn("Integer overflow in octal number");
2260 overflowed = TRUE;
2261 }
2262 retval = n | (*s++ - '0');
748a9306 2263 len--;
fe14fcc3 2264 }
748a9306
LW
2265 if (dowarn && len && (*s == '8' || *s == '9'))
2266 warn("Illegal octal digit ignored");
fe14fcc3
LW
2267 *retlen = s - start;
2268 return retval;
2269}
2270
71be2cbc 2271UV
79072805 2272scan_hex(start, len, retlen)
fe14fcc3 2273char *start;
79072805
LW
2274I32 len;
2275I32 *retlen;
fe14fcc3
LW
2276{
2277 register char *s = start;
55497cff
PP
2278 register UV retval = 0;
2279 bool overflowed = FALSE;
fe14fcc3
LW
2280 char *tmp;
2281
93a17b20 2282 while (len-- && *s && (tmp = strchr(hexdigit, *s))) {
55497cff
PP
2283 register UV n = retval << 4;
2284 if (!overflowed && (n >> 4) != retval) {
2285 warn("Integer overflow in hex number");
2286 overflowed = TRUE;
2287 }
2288 retval = n | (tmp - hexdigit) & 15;
fe14fcc3
LW
2289 s++;
2290 }
2291 *retlen = s - start;
2292 return retval;
2293}
760ac839 2294
11343788
MB
2295#ifdef USE_THREADS
2296#ifdef OLD_PTHREADS_API
2297struct thread *
2298getTHR _((void))
2299{
2300 pthread_addr_t t;
2301
2302 if (pthread_getspecific(thr_key, &t))
2303 croak("panic: pthread_getspecific");
2304 return (struct thread *) t;
2305}
2306#endif /* OLD_PTHREADS_API */
f93b4edd
MB
2307
2308MAGIC *
2309condpair_magic(sv)
2310SV *sv;
2311{
2312 MAGIC *mg;
2313
2314 SvUPGRADE(sv, SVt_PVMG);
2315 mg = mg_find(sv, 'm');
2316 if (!mg) {
2317 condpair_t *cp;
2318
2319 New(53, cp, 1, condpair_t);
2320 MUTEX_INIT(&cp->mutex);
2321 COND_INIT(&cp->owner_cond);
2322 COND_INIT(&cp->cond);
2323 cp->owner = 0;
2324 MUTEX_LOCK(&sv_mutex);
2325 mg = mg_find(sv, 'm');
2326 if (mg) {
2327 /* someone else beat us to initialising it */
2328 MUTEX_UNLOCK(&sv_mutex);
2329 MUTEX_DESTROY(&cp->mutex);
2330 COND_DESTROY(&cp->owner_cond);
2331 COND_DESTROY(&cp->cond);
2332 Safefree(cp);
2333 }
2334 else {
2335 sv_magic(sv, Nullsv, 'm', 0, 0);
2336 mg = SvMAGIC(sv);
2337 mg->mg_ptr = (char *)cp;
2338 mg->mg_len = sizeof(cp);
2339 MUTEX_UNLOCK(&sv_mutex);
2340 }
2341 }
2342 return mg;
2343}
11343788 2344#endif /* USE_THREADS */
760ac839
LW
2345
2346#ifdef HUGE_VAL
2347/*
2348 * This hack is to force load of "huge" support from libm.a
2349 * So it is in perl for (say) POSIX to use.
2350 * Needed for SunOS with Sun's 'acc' for example.
2351 */
2352double
2353Perl_huge()
2354{
2355 return HUGE_VAL;
2356}
2357#endif