3 * Copyright (c) 1991-1994, Larry Wall
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.
11 * "Very useful, no doubt, that was to Saruman; yet it seems that he was
12 * not content." --Gandalf
18 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
22 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
31 /* Put this after #includes because fork and vfork prototypes may
42 # include <sys/file.h>
46 # include <sys/wait.h>
52 static void xstat _((void));
57 /* paranoid version of malloc */
59 /* NOTE: Do not call the next three routines directly. Use the macros
60 * in handy.h, so that we can easily redefine everything to do tracking of
61 * allocated hunks back to the original New to track down any memory leaks.
62 * XXX This advice seems to be widely ignored :-( --AD August 1996.
72 PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH;
75 #endif /* HAS_64K_LIMIT */
78 croak("panic: malloc");
80 ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
81 #if !(defined(I286) || defined(atarist))
82 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
84 DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
91 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
97 /* paranoid version of realloc */
100 saferealloc(where,size)
105 #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
107 #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */
111 PerlIO_printf(PerlIO_stderr(), "Reallocation too large: %lx\n", size) FLUSH;
114 #endif /* HAS_64K_LIMIT */
116 croak("Null realloc");
119 croak("panic: realloc");
121 ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */
123 #if !(defined(I286) || defined(atarist))
125 PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++);
126 PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
130 PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++);
131 PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
140 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
146 /* safe version of free */
152 #if !(defined(I286) || defined(atarist))
153 DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
155 DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
163 /* safe version of calloc */
166 safecalloc(count, size)
173 if (size * count > 0xffff) {
174 PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size * count) FLUSH;
177 #endif /* HAS_64K_LIMIT */
179 if ((long)size < 0 || (long)count < 0)
180 croak("panic: calloc");
182 #if !(defined(I286) || defined(atarist))
183 DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
185 DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
188 ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
190 memset((void*)ptr, 0, size);
196 PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
202 #endif /* !MYMALLOC */
206 #define ALIGN sizeof(long)
213 register Malloc_t where;
215 where = safemalloc(size + ALIGN);
219 return where + ALIGN;
223 safexrealloc(where,size)
227 register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
240 x = where[0] + 100 * where[1];
246 safexcalloc(x,count,size)
251 register Malloc_t where;
253 where = safexmalloc(x, size * count + ALIGN);
255 memset((void*)where + ALIGN, 0, size * count);
258 return where + ALIGN;
266 for (i = 0; i < MAXXCOUNT; i++) {
267 if (xcount[i] > lastxcount[i]) {
268 PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
269 lastxcount[i] = xcount[i];
274 #endif /* LEAKTEST */
276 /* copy a string up to some (non-backslashed) delimiter, if any */
279 cpytill(to,from,fromend,delim,retlen)
282 register char *fromend;
288 for (; from < fromend; from++,to++) {
290 if (from[1] == delim)
292 else if (from[1] == '\\')
295 else if (*from == delim)
300 *retlen = to - origto;
304 /* return ptr to little string in big string, NULL if not found */
305 /* This routine was donated by Corey Satten. */
310 register char *little;
312 register char *s, *x;
323 for (x=big,s=little; *s; /**/ ) {
337 /* same as instr but allow embedded nulls */
340 ninstr(big, bigend, little, lend)
342 register char *bigend;
346 register char *s, *x;
347 register I32 first = *little;
348 register char *littleend = lend;
350 if (!first && little >= littleend)
352 if (bigend - big < littleend - little)
354 bigend -= littleend - little++;
355 while (big <= bigend) {
358 for (x=big,s=little; s < littleend; /**/ ) {
370 /* reverse of the above--find last substring */
373 rninstr(big, bigend, little, lend)
379 register char *bigbeg;
380 register char *s, *x;
381 register I32 first = *little;
382 register char *littleend = lend;
384 if (!first && little >= littleend)
387 big = bigend - (littleend - little++);
388 while (big >= bigbeg) {
391 for (x=big+2,s=little; s < littleend; /**/ ) {
406 * Set up for a new ctype locale.
409 perl_new_ctype(newctype)
414 for (i = 0; i < 256; i++) {
416 fold_locale[i] = toLOWER_LC(i);
417 else if (isLOWER_LC(i))
418 fold_locale[i] = toUPPER_LC(i);
424 #endif /* LC_CTYPE */
429 * Set up for a new collation locale.
432 perl_new_collate(newcoll)
436 if (collation_name) {
438 Safefree(collation_name);
439 collation_name = NULL;
440 collation_standard = TRUE;
444 #endif /* HAS_STRXFRM */
449 if (! collation_name || strNE(collation_name, newcoll)) {
451 Safefree(collation_name);
452 collation_name = savepv(newcoll);
453 collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
457 /* 2: at most so many chars ('a', 'b'). */
458 /* 50: surely no system expands a char more. */
459 #define XFRMBUFSIZE (2 * 50)
460 char xbuf[XFRMBUFSIZE];
461 Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE);
462 Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
463 SSize_t mult = fb - fa;
465 croak("strxfrm() gets absurd");
466 collxfrm_base = (fa > mult) ? (fa - mult) : 0;
467 collxfrm_mult = mult;
469 #endif /* HAS_STRXFRM */
473 #endif /* LC_COLLATE */
478 * Set up for a new numeric locale.
481 perl_new_numeric(newnum)
486 Safefree(numeric_name);
488 numeric_standard = TRUE;
489 numeric_local = TRUE;
494 if (! numeric_name || strNE(numeric_name, newnum)) {
495 Safefree(numeric_name);
496 numeric_name = savepv(newnum);
497 numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
498 numeric_local = TRUE;
503 perl_numeric_standard()
505 if (! numeric_standard) {
506 setlocale(LC_NUMERIC, "C");
507 numeric_standard = TRUE;
508 numeric_local = FALSE;
515 if (! numeric_local) {
516 setlocale(LC_NUMERIC, numeric_name);
517 numeric_standard = FALSE;
518 numeric_local = TRUE;
522 #endif /* LC_NUMERIC */
524 /* Initialize locale awareness */
526 perl_init_i18nl10n(printwarn)
531 * 1 = set ok or not applicable,
532 * 0 = fallback to C locale,
533 * -1 = fallback to C locale failed
538 char *lc_all = getenv("LC_ALL");
539 char *lang = getenv("LANG");
541 char *lc_ctype = getenv("LC_CTYPE");
542 char *curctype = NULL;
543 #endif /* LC_CTYPE */
545 char *lc_collate = getenv("LC_COLLATE");
546 char *curcoll = NULL;
547 #endif /* LC_COLLATE */
549 char *lc_numeric = getenv("LC_NUMERIC");
551 #endif /* LC_NUMERIC */
552 bool setlocale_failure = FALSE;
557 if (! setlocale(LC_ALL, ""))
558 setlocale_failure = TRUE;
564 if (! (curctype = setlocale(LC_CTYPE, subloc)))
565 setlocale_failure = TRUE;
566 #endif /* LC_CTYPE */
568 if (! (curcoll = setlocale(LC_COLLATE, subloc)))
569 setlocale_failure = TRUE;
570 #endif /* LC_COLLATE */
572 if (! (curnum = setlocale(LC_NUMERIC, subloc)))
573 setlocale_failure = TRUE;
574 #endif /* LC_NUMERIC */
576 if (setlocale_failure && (lc_all || lang)) {
581 (!(perl_badlang = getenv("PERL_BADLANG")) || atoi(perl_badlang))) {
583 PerlIO_printf(PerlIO_stderr(),
584 "perl: warning: Setting locale failed for the categories:\n\t");
587 PerlIO_printf(PerlIO_stderr(), "LC_CTYPE ");
588 #endif /* LC_CTYPE */
591 PerlIO_printf(PerlIO_stderr(), "LC_COLLATE ");
592 #endif /* LC_COLLATE */
595 PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC ");
596 #endif /* LC_NUMERIC */
597 PerlIO_printf(PerlIO_stderr(), "\n");
599 PerlIO_printf(PerlIO_stderr(),
600 "perl: warning: Please check that your locale settings:\n");
602 PerlIO_printf(PerlIO_stderr(),
603 "\tLC_ALL = %c%s%c,\n",
605 lc_all ? lc_all : "unset",
609 PerlIO_printf(PerlIO_stderr(),
610 "\tLC_CTYPE = %c%s%c,\n",
611 lc_ctype ? '"' : '(',
612 lc_ctype ? lc_ctype : "unset",
613 lc_ctype ? '"' : ')');
614 #endif /* LC_CTYPE */
617 PerlIO_printf(PerlIO_stderr(),
618 "\tLC_COLLATE = %c%s%c,\n",
619 lc_collate ? '"' : '(',
620 lc_collate ? lc_collate : "unset",
621 lc_collate ? '"' : ')');
622 #endif /* LC_COLLATE */
625 PerlIO_printf(PerlIO_stderr(),
626 "\tLC_NUMERIC = %c%s%c,\n",
627 lc_numeric ? '"' : '(',
628 lc_numeric ? lc_numeric : "unset",
629 lc_numeric ? '"' : ')');
630 #endif /* LC_NUMERIC */
631 PerlIO_printf(PerlIO_stderr(),
634 lang ? lang : "unset",
637 PerlIO_printf(PerlIO_stderr(),
638 " are supported and installed on your system.\n");
644 if (setlocale_failure) {
645 PerlIO_printf(PerlIO_stderr(),
646 "perl: warning: Falling back to the \"C\" locale.\n");
647 if (setlocale(LC_ALL, "C")) {
650 #endif /* LC_CTYPE */
653 #endif /* LC_COLLATE */
656 #endif /* LC_NUMERIC */
659 PerlIO_printf(PerlIO_stderr(),
660 "perl: warning: Failed to fall back to the \"C\" locale.\n");
665 PerlIO_printf(PerlIO_stderr(),
666 "perl: warning: Cannot fall back to the \"C\" locale.\n");
667 #endif /* ! LC_ALL */
671 perl_new_ctype(curctype);
672 #endif /* LC_NUMERIC */
675 perl_new_collate(curcoll);
676 #endif /* LC_NUMERIC */
679 perl_new_numeric(curnum);
680 #endif /* LC_NUMERIC */
682 #endif /* #if defined(HAS_SETLOCALE) */
687 /* Backwards compatibility. */
689 perl_init_i18nl14n(printwarn)
692 perl_init_i18nl10n(printwarn);
698 * mem_collxfrm() is a bit like strxfrm() but with two important
699 * differences. First, it handles embedded NULs. Second, it allocates
700 * a bit more memory than needed for the transformed data itself.
701 * The real transformed data begins at offset sizeof(collationix).
702 * Please see sv_collxfrm() to see how this is used.
705 mem_collxfrm(s, len, xlen)
711 STRLEN xalloc, xin, xout;
713 /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */
714 /* the +1 is for the terminating NUL. */
716 xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1;
717 New(171, xbuf, xalloc, char);
721 *(U32*)xbuf = collation_ix;
722 xout = sizeof(collation_ix);
723 for (xin = 0; xin < len; ) {
727 xused = strxfrm(xbuf + xout, s + xin, xalloc - xout);
730 if (xused < xalloc - xout)
732 xalloc = (2 * xalloc) + 1;
733 Renew(xbuf, xalloc, char);
738 xin += strlen(s + xin) + 1;
741 /* Embedded NULs are understood but silently skipped
742 * because they make no sense in locale collation. */
746 *xlen = xout - sizeof(collation_ix);
755 #endif /* HAS_STRXFRM */
761 register unsigned char *s;
762 register unsigned char *table;
764 register U32 len = SvCUR(sv);
769 return; /* can't have offsets that big */
771 table = (unsigned char*)(SvPVX(sv) + len + 1);
773 for (i = 0; i < 256; i++) {
777 while (s >= (unsigned char*)(SvPVX(sv)))
779 if (table[*s] == len)
783 sv_upgrade(sv, SVt_PVBM);
784 sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
787 s = (unsigned char*)(SvPVX(sv)); /* deeper magic */
788 for (i = 0; i < len; i++) {
789 if (freq[s[i]] < frequency) {
791 frequency = freq[s[i]];
794 BmRARE(sv) = s[rarest];
795 BmPREVIOUS(sv) = rarest;
796 DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
800 fbm_instr(big, bigend, littlestr)
802 register unsigned char *bigend;
805 register unsigned char *s;
807 register I32 littlelen;
808 register unsigned char *little;
809 register unsigned char *table;
810 register unsigned char *olds;
811 register unsigned char *oldlittle;
813 if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
815 char *l = SvPV(littlestr,len);
818 return ninstr((char*)big,(char*)bigend, l, l + len);
821 littlelen = SvCUR(littlestr);
822 if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
823 if (littlelen > bigend - big)
825 little = (unsigned char*)SvPVX(littlestr);
826 s = bigend - littlelen;
827 if (*s == *little && memcmp((char*)s,(char*)little,littlelen)==0)
828 return (char*)s; /* how sweet it is */
829 else if (bigend[-1] == '\n' && little[littlelen-1] != '\n'
832 if (*s == *little && memcmp((char*)s,(char*)little,littlelen)==0)
837 table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1);
838 if (--littlelen >= bigend - big)
841 oldlittle = little = table - 2;
845 if (tmp = table[*s]) {
847 if (bigend - s > tmp) {
852 if ((s += tmp) < bigend)
858 tmp = littlelen; /* less expensive than calling strncmp() */
861 if (*--s == *--little)
863 s = olds + 1; /* here we pay the price for failure */
865 if (s < bigend) /* fake up continue to outer loop */
876 screaminstr(bigstr, littlestr)
880 register unsigned char *s, *x;
881 register unsigned char *big;
883 register I32 previous;
885 register unsigned char *little;
886 register unsigned char *bigend;
887 register unsigned char *littleend;
889 if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
891 little = (unsigned char *)(SvPVX(littlestr));
892 littleend = little + SvCUR(littlestr);
894 previous = BmPREVIOUS(littlestr);
895 big = (unsigned char *)(SvPVX(bigstr));
896 bigend = big + SvCUR(bigstr);
897 while (pos < previous) {
898 if (!(pos += screamnext[pos]))
903 if (big[pos-previous] != first)
905 for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
914 return (char *)(big+pos-previous);
915 } while ( pos += screamnext[pos] );
916 #else /* !POINTERRIGOR */
919 if (big[pos] != first)
921 for (x=big+pos+1,s=little; s < littleend; /**/ ) {
930 return (char *)(big+pos);
931 } while ( pos += screamnext[pos] );
932 #endif /* POINTERRIGOR */
941 register U8 *a = (U8 *)s1;
942 register U8 *b = (U8 *)s2;
944 if (*a != *b && *a != fold[*b])
952 ibcmp_locale(s1, s2, len)
956 register U8 *a = (U8 *)s1;
957 register U8 *b = (U8 *)s2;
959 if (*a != *b && *a != fold_locale[*b])
966 /* copy a string to a safe spot */
972 register char *newaddr;
974 New(902,newaddr,strlen(sv)+1,char);
975 (void)strcpy(newaddr,sv);
979 /* same thing but with a known length */
986 register char *newaddr;
988 New(903,newaddr,len+1,char);
989 Copy(sv,newaddr,len,char); /* might not be null terminated */
990 newaddr[len] = '\0'; /* is now */
994 #if !defined(I_STDARG) && !defined(I_VARARGS)
997 * Fallback on the old hackers way of doing varargs
1002 mess(pat,a1,a2,a3,a4)
1004 long a1, a2, a3, a4;
1008 I32 usermess = strEQ(pat,"%s");
1013 tmpstr = sv_newmortal();
1014 sv_setpv(tmpstr, (char*)a1);
1015 *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1];
1018 (void)sprintf(s,pat,a1,a2,a3,a4);
1022 if (s[-1] != '\n') {
1024 strcpy(s, " during global destruction.\n");
1026 if (curcop->cop_line) {
1027 (void)sprintf(s," at %s line %ld",
1028 SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line);
1031 if (GvIO(last_in_gv) &&
1032 IoLINES(GvIOp(last_in_gv)) ) {
1033 (void)sprintf(s,", <%s> %s %ld",
1034 last_in_gv == argvgv ? "" : GvENAME(last_in_gv),
1035 strEQ(rs,"\n") ? "line" : "chunk",
1036 (long)IoLINES(GvIOp(last_in_gv)));
1039 (void)strcpy(s,".\n");
1043 sv_catpv(tmpstr,buf+1);
1046 if (s - s_start >= sizeof(buf)) { /* Ooops! */
1048 PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr));
1050 PerlIO_puts(PerlIO_stderr(), buf);
1051 PerlIO_puts(PerlIO_stderr(),"panic: message overflow - memory corrupted!\n");
1055 return SvPVX(tmpstr);
1061 void croak(pat,a1,a2,a3,a4)
1063 long a1, a2, a3, a4;
1071 message = mess(pat,a1,a2,a3,a4);
1073 SV *olddiehook = diehook;
1074 diehook = Nullsv; /* sv_2cv might call croak() */
1075 cv = sv_2cv(olddiehook, &stash, &gv, 0);
1076 diehook = olddiehook;
1077 if (cv && !CvDEPTH(cv)) {
1082 PUSHs(sv_2mortal(newSVpv(message,0)));
1084 perl_call_sv((SV*)cv, G_DISCARD);
1088 restartop = die_where(message);
1089 Siglongjmp(top_env, 3);
1091 PerlIO_puts(PerlIO_stderr(),message);
1092 (void)PerlIO_flush(PerlIO_stderr());
1098 (void)UNLINK(e_tmpname);
1099 Safefree(e_tmpname);
1102 statusvalue = SHIFTSTATUS(statusvalue);
1104 my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT);
1106 my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
1111 void warn(pat,a1,a2,a3,a4)
1113 long a1, a2, a3, a4;
1121 message = mess(pat,a1,a2,a3,a4);
1123 SV *oldwarnhook = warnhook;
1124 warnhook = Nullsv; /* sv_2cv might end up calling warn() */
1125 cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
1126 warnhook = oldwarnhook;
1127 if (cv && !CvDEPTH(cv)) {
1132 PUSHs(sv_2mortal(newSVpv(message,0)));
1134 perl_call_sv((SV*)cv, G_DISCARD);
1138 PerlIO_puts(PerlIO_stderr(),message);
1142 (void)PerlIO_flush(PerlIO_stderr());
1145 #else /* !defined(I_STDARG) && !defined(I_VARARGS) */
1149 mess(char *pat, va_list *args)
1163 #ifdef USE_CHAR_VSPRINTF
1171 usermess = strEQ(pat, "%s");
1173 tmpstr = sv_newmortal();
1174 sv_setpv(tmpstr, va_arg(*args, char *));
1175 *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1];
1178 (void) vsprintf(s,pat,*args);
1183 if (s[-1] != '\n') {
1185 strcpy(s, " during global destruction.\n");
1187 if (curcop->cop_line) {
1188 (void)sprintf(s," at %s line %ld",
1189 SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line);
1192 if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) {
1193 bool line_mode = (RsSIMPLE(rs) &&
1194 SvLEN(rs) == 1 && *SvPVX(rs) == '\n');
1195 (void)sprintf(s,", <%s> %s %ld",
1196 last_in_gv == argvgv ? "" : GvNAME(last_in_gv),
1197 line_mode ? "line" : "chunk",
1198 (long)IoLINES(GvIOp(last_in_gv)));
1201 (void)strcpy(s,".\n");
1205 sv_catpv(tmpstr,buf+1);
1208 if (s - s_start >= sizeof(buf)) { /* Ooops! */
1210 PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr));
1212 PerlIO_puts(PerlIO_stderr(), buf);
1213 PerlIO_puts(PerlIO_stderr(), "panic: message overflow - memory corrupted!\n");
1217 return SvPVX(tmpstr);
1224 croak(char* pat, ...)
1228 croak(pat, va_alist)
1240 va_start(args, pat);
1244 message = mess(pat, &args);
1247 SV *olddiehook = diehook;
1248 diehook = Nullsv; /* sv_2cv might call croak() */
1249 cv = sv_2cv(olddiehook, &stash, &gv, 0);
1250 diehook = olddiehook;
1251 if (cv && !CvDEPTH(cv)) {
1256 PUSHs(sv_2mortal(newSVpv(message,0)));
1258 perl_call_sv((SV*)cv, G_DISCARD);
1262 restartop = die_where(message);
1263 Siglongjmp(top_env, 3);
1265 PerlIO_puts(PerlIO_stderr(),message);
1266 (void)PerlIO_flush(PerlIO_stderr());
1272 (void)UNLINK(e_tmpname);
1273 Safefree(e_tmpname);
1276 statusvalue = SHIFTSTATUS(statusvalue);
1278 my_exit((U32)(vaxc$errno?vaxc$errno:(statusvalue?statusvalue:44)));
1280 my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
1301 va_start(args, pat);
1305 message = mess(pat, &args);
1309 SV *oldwarnhook = warnhook;
1310 warnhook = Nullsv; /* sv_2cv might end up calling warn() */
1311 cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
1312 warnhook = oldwarnhook;
1313 if (cv && !CvDEPTH(cv)) {
1318 PUSHs(sv_2mortal(newSVpv(message,0)));
1320 perl_call_sv((SV*)cv, G_DISCARD);
1324 PerlIO_puts(PerlIO_stderr(),message);
1328 (void)PerlIO_flush(PerlIO_stderr());
1330 #endif /* !defined(I_STDARG) && !defined(I_VARARGS) */
1332 #ifndef VMS /* VMS' my_setenv() is in VMS.c */
1337 register I32 i=setenv_getix(nam); /* where does it go? */
1339 if (environ == origenviron) { /* need we copy environment? */
1345 for (max = i; environ[max]; max++) ;
1346 New(901,tmpenv, max+2, char*);
1347 for (j=0; j<max; j++) /* copy environment */
1348 tmpenv[j] = savepv(environ[j]);
1349 tmpenv[max] = Nullch;
1350 environ = tmpenv; /* tell exec where it is now */
1353 while (environ[i]) {
1354 environ[i] = environ[i+1];
1359 if (!environ[i]) { /* does not exist yet */
1360 Renew(environ, i+2, char*); /* just expand it a bit */
1361 environ[i+1] = Nullch; /* make sure it's null terminated */
1364 Safefree(environ[i]);
1365 New(904, environ[i], strlen(nam) + strlen(val) + 2, char);
1367 (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
1369 /* MS-DOS requires environment variable names to be in uppercase */
1370 /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but
1371 * some utilities and applications may break because they only look
1372 * for upper case strings. (Fixed strupr() bug here.)]
1374 strcpy(environ[i],nam); strupr(environ[i]);
1375 (void)sprintf(environ[i] + strlen(nam),"=%s",val);
1383 register I32 i, len = strlen(nam);
1385 for (i = 0; environ[i]; i++) {
1386 if (strnEQ(environ[i],nam,len) && environ[i][len] == '=')
1387 break; /* strnEQ must come first to avoid */
1388 } /* potential SEGV's */
1393 #ifdef UNLINK_ALL_VERSIONS
1395 unlnk(f) /* unlink all versions of a file */
1400 for (i = 0; unlink(f) >= 0; i++) ;
1405 #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
1407 my_bcopy(from,to,len)
1408 register char *from;
1414 if (from - to >= 0) {
1422 *(--to) = *(--from);
1428 #if !defined(HAS_BZERO) && !defined(HAS_MEMSET)
1444 my_memcmp(s1,s2,len)
1445 register unsigned char *s1;
1446 register unsigned char *s2;
1452 if (tmp = *s1++ - *s2++)
1457 #endif /* HAS_MEMCMP */
1459 #if defined(I_STDARG) || defined(I_VARARGS)
1462 #ifdef USE_CHAR_VSPRINTF
1467 vsprintf(dest, pat, args)
1468 char *dest, *pat, *args;
1472 fakebuf._ptr = dest;
1473 fakebuf._cnt = 32767;
1477 fakebuf._flag = _IOWRT|_IOSTRG;
1478 _doprnt(pat, args, &fakebuf); /* what a kludge */
1479 (void)putc('\0', &fakebuf);
1480 #ifdef USE_CHAR_VSPRINTF
1483 return 0; /* perl doesn't use return value */
1487 #endif /* HAS_VPRINTF */
1488 #endif /* I_VARARGS || I_STDARGS */
1491 #if BYTEORDER != 0x4321
1493 #ifndef CAN_PROTOTYPE
1500 #if (BYTEORDER & 1) == 0
1503 result = ((s & 255) << 8) + ((s >> 8) & 255);
1511 #ifndef CAN_PROTOTYPE
1520 char c[sizeof(long)];
1523 #if BYTEORDER == 0x1234
1524 u.c[0] = (l >> 24) & 255;
1525 u.c[1] = (l >> 16) & 255;
1526 u.c[2] = (l >> 8) & 255;
1530 #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
1531 croak("Unknown BYTEORDER\n");
1536 for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) {
1537 u.c[o & 0xf] = (l >> s) & 255;
1545 #ifndef CAN_PROTOTYPE
1554 char c[sizeof(long)];
1557 #if BYTEORDER == 0x1234
1558 u.c[0] = (l >> 24) & 255;
1559 u.c[1] = (l >> 16) & 255;
1560 u.c[2] = (l >> 8) & 255;
1564 #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
1565 croak("Unknown BYTEORDER\n");
1572 for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) {
1573 l |= (u.c[o & 0xf] & 255) << s;
1580 #endif /* BYTEORDER != 0x4321 */
1584 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1585 * If these functions are defined,
1586 * the BYTEORDER is neither 0x1234 nor 0x4321.
1587 * However, this is not assumed.
1591 #define HTOV(name,type) \
1598 char c[sizeof(type)]; \
1602 for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
1603 u.c[i] = (n >> s) & 0xFF; \
1608 #define VTOH(name,type) \
1615 char c[sizeof(type)]; \
1621 for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
1622 n += (u.c[i] & 0xFF) << s; \
1627 #if defined(HAS_HTOVS) && !defined(htovs)
1630 #if defined(HAS_HTOVL) && !defined(htovl)
1633 #if defined(HAS_VTOHS) && !defined(vtohs)
1636 #if defined(HAS_VTOHL) && !defined(vtohl)
1640 #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) \
1641 && !defined(VMS) /* VMS' my_popen() is in VMS.c, same with OS/2. */
1648 register I32 this, that;
1660 return my_syspopen(cmd,mode);
1665 this = (*mode == 'w');
1667 if (doexec && tainting) {
1669 taint_proper("Insecure %s%s", "EXEC");
1671 while ((pid = (doexec?vfork():fork())) < 0) {
1672 if (errno != EAGAIN) {
1675 croak("Can't fork");
1686 if (p[THIS] != (*mode == 'r')) {
1687 dup2(p[THIS], *mode == 'r');
1691 #if !defined(HAS_FCNTL) || !defined(F_SETFD)
1697 for (fd = maxsysfd + 1; fd < NOFILE; fd++)
1700 do_exec(cmd); /* may or may not use the shell */
1704 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
1705 sv_setiv(GvSV(tmpgv),(I32)getpid());
1707 hv_clear(pidstatus); /* we have no children */
1712 do_execfree(); /* free any memory malloced by child on vfork */
1714 if (p[that] < p[this]) {
1715 dup2(p[this], p[that]);
1719 sv = *av_fetch(fdpid,p[this],TRUE);
1720 (void)SvUPGRADE(sv,SVt_IV);
1723 return PerlIO_fdopen(p[this], mode);
1726 #if defined(atarist) || defined(DJGPP)
1733 /* Needs work for PerlIO ! */
1734 /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */
1735 return popen(PerlIO_exportFILE(cmd, 0), mode);
1739 #endif /* !DOSISH */
1746 struct stat tmpstatbuf;
1748 PerlIO_printf(PerlIO_stderr(),"%s", s);
1749 for (fd = 0; fd < 32; fd++) {
1750 if (Fstat(fd,&tmpstatbuf) >= 0)
1751 PerlIO_printf(PerlIO_stderr()," %d",fd);
1753 PerlIO_printf(PerlIO_stderr(),"\n");
1763 #if defined(HAS_FCNTL) && defined(F_DUPFD)
1767 return fcntl(oldfd, F_DUPFD, newfd);
1776 while ((fd = dup(oldfd)) != newfd && fd >= 0) /* good enough for low fd's */
1779 close(fdtmp[--fdx]);
1786 #ifdef HAS_SIGACTION
1789 rsignal(signo, handler)
1791 Sighandler_t handler;
1793 struct sigaction act, oact;
1795 act.sa_handler = handler;
1796 sigemptyset(&act.sa_mask);
1799 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
1801 if (sigaction(signo, &act, &oact) == -1)
1804 return(oact.sa_handler);
1808 rsignal_state(signo)
1811 struct sigaction oact;
1813 if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1)
1816 return oact.sa_handler;
1820 rsignal_save(signo, handler, save)
1822 Sighandler_t handler;
1825 struct sigaction act;
1827 act.sa_handler = handler;
1828 sigemptyset(&act.sa_mask);
1831 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
1833 return sigaction(signo, &act, save);
1837 rsignal_restore(signo, save)
1841 return sigaction(signo, save, (struct sigaction *)NULL);
1844 #else /* !HAS_SIGACTION */
1847 rsignal(signo, handler)
1849 Sighandler_t handler;
1851 return signal(signo, handler);
1854 static int sig_trapped;
1865 rsignal_state(signo)
1868 Sighandler_t oldsig;
1871 oldsig = signal(signo, sig_trap);
1872 signal(signo, oldsig);
1874 kill(getpid(), signo);
1879 rsignal_save(signo, handler, save)
1881 Sighandler_t handler;
1884 *save = signal(signo, handler);
1885 return (*save == SIG_ERR) ? -1 : 0;
1889 rsignalrestore(signo, save)
1893 return (signal(signo, *save) == SIG_ERR) ? -1 : 0;
1896 #endif /* !HAS_SIGACTION */
1899 #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) \
1900 && !defined(VMS) /* VMS' my_popen() is in VMS.c */
1905 Sigsave_t hstat, istat, qstat;
1910 svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE);
1911 pid = (int)SvIVX(*svp);
1915 if (pid == -1) { /* Opened by popen. */
1916 return my_syspclose(ptr);
1921 if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */
1923 rsignal_save(SIGHUP, SIG_IGN, &hstat);
1924 rsignal_save(SIGINT, SIG_IGN, &istat);
1925 rsignal_save(SIGQUIT, SIG_IGN, &qstat);
1927 pid = wait4pid(pid, &status, 0);
1928 } while (pid == -1 && errno == EINTR);
1929 rsignal_restore(SIGHUP, &hstat);
1930 rsignal_restore(SIGINT, &istat);
1931 rsignal_restore(SIGQUIT, &qstat);
1932 return(pid < 0 ? pid : status);
1934 #endif /* !DOSISH */
1936 #if !defined(DOSISH) || defined(OS2)
1938 wait4pid(pid,statusp,flags)
1950 sprintf(spid, "%d", pid);
1951 svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE);
1952 if (svp && *svp != &sv_undef) {
1953 *statusp = SvIVX(*svp);
1954 (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
1961 hv_iterinit(pidstatus);
1962 if (entry = hv_iternext(pidstatus)) {
1963 pid = atoi(hv_iterkey(entry,(I32*)statusp));
1964 sv = hv_iterval(pidstatus,entry);
1965 *statusp = SvIVX(sv);
1966 sprintf(spid, "%d", pid);
1967 (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
1972 return waitpid(pid,statusp,flags);
1975 return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
1980 croak("Can't do waitpid with flags");
1982 while ((result = wait(statusp)) != pid && pid > 0 && result >= 0)
1983 pidgone(result,*statusp);
1992 #endif /* !DOSISH */
2003 sprintf(spid, "%d", pid);
2004 sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE);
2005 (void)SvUPGRADE(sv,SVt_IV);
2010 #if defined(atarist) || defined(OS2) || defined(DJGPP)
2013 int /* Cannot prototype with I32
2022 /* Needs work for PerlIO ! */
2023 FILE *f = PerlIO_findFILE(ptr);
2024 I32 result = pclose(f);
2025 PerlIO_releaseFILE(ptr,f);
2031 repeatcpy(to,from,len,count)
2033 register char *from;
2038 register char *frombase = from;
2046 while (count-- > 0) {
2047 for (todo = len; todo > 0; todo--) {
2054 #ifndef CASTNEGFLOAT
2062 # define BIGDOUBLE 2147483648.0
2064 return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000;
2067 return (unsigned long)f;
2069 return (unsigned long)along;
2076 /* Unfortunately, on some systems the cast_uv() function doesn't
2077 work with the system-supplied definition of ULONG_MAX. The
2078 comparison (f >= ULONG_MAX) always comes out true. It must be a
2079 problem with the compiler constant folding.
2081 In any case, this workaround should be fine on any two's complement
2082 system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your
2084 --Andy Dougherty <doughera@lafcol.lafayette.edu>
2087 /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead
2089 -- Kenneth Albanowski <kjahds@kjahds.com>
2093 # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1)
2101 return (I32) I32_MAX;
2103 return (I32) I32_MIN;
2123 return (UV) MY_UV_MAX;
2135 char *fa = strrchr(a,'/');
2136 char *fb = strrchr(b,'/');
2137 struct stat tmpstatbuf1;
2138 struct stat tmpstatbuf2;
2140 #define MAXPATHLEN 1024
2142 char tmpbuf[MAXPATHLEN+1];
2157 strncpy(tmpbuf, a, fa - a);
2158 if (Stat(tmpbuf, &tmpstatbuf1) < 0)
2163 strncpy(tmpbuf, b, fb - b);
2164 if (Stat(tmpbuf, &tmpstatbuf2) < 0)
2166 return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev &&
2167 tmpstatbuf1.st_ino == tmpstatbuf2.st_ino;
2169 #endif /* !HAS_RENAME */
2172 scan_oct(start, len, retlen)
2177 register char *s = start;
2178 register UV retval = 0;
2179 bool overflowed = FALSE;
2181 while (len && *s >= '0' && *s <= '7') {
2182 register UV n = retval << 3;
2183 if (!overflowed && (n >> 3) != retval) {
2184 warn("Integer overflow in octal number");
2187 retval = n | (*s++ - '0');
2190 if (dowarn && len && (*s == '8' || *s == '9'))
2191 warn("Illegal octal digit ignored");
2192 *retlen = s - start;
2197 scan_hex(start, len, retlen)
2202 register char *s = start;
2203 register UV retval = 0;
2204 bool overflowed = FALSE;
2207 while (len-- && *s && (tmp = strchr(hexdigit, *s))) {
2208 register UV n = retval << 4;
2209 if (!overflowed && (n >> 4) != retval) {
2210 warn("Integer overflow in hex number");
2213 retval = n | (tmp - hexdigit) & 15;
2216 *retlen = s - start;
2223 * This hack is to force load of "huge" support from libm.a
2224 * So it is in perl for (say) POSIX to use.
2225 * Needed for SunOS with Sun's 'acc' for example.