-/* $Header: util.c,v 3.0.1.4 90/03/01 10:26:48 lwall Locked $
+/* util.c
*
- * Copyright (c) 1989, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
- * You may distribute under the terms of the GNU General Public License
- * as specified in the README file that comes with the perl 3.0 kit.
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
*
- * $Log: util.c,v $
- * Revision 3.0.1.4 90/03/01 10:26:48 lwall
- * patch9: fbminstr() called instr() rather than ninstr()
- * patch9: nested evals clobbered their longjmp environment
- * patch9: piped opens returned undefined rather than 0 in child
- * patch9: the x operator is now up to 10 times faster
- *
- * Revision 3.0.1.3 89/12/21 20:27:41 lwall
- * patch7: errno may now be a macro with an lvalue
- *
- * Revision 3.0.1.2 89/11/17 15:46:35 lwall
- * patch5: BZERO separate from BCOPY now
- * patch5: byteorder now is a hex value
- *
- * Revision 3.0.1.1 89/11/11 05:06:13 lwall
- * patch2: made dup2 a little better
- *
- * Revision 3.0 89/10/18 15:32:43 lwall
- * 3.0 baseline
- *
+ */
+
+/*
+ * "Very useful, no doubt, that was to Saruman; yet it seems that he was
+ * not content." --Gandalf
*/
#include "EXTERN.h"
#include "perl.h"
+
+#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
#include <signal.h>
+#endif
+
+#ifndef SIG_ERR
+# define SIG_ERR ((Sighandler_t) -1)
+#endif
+
+/* XXX If this causes problems, set i_unistd=undef in the hint file. */
+#ifdef I_UNISTD
+# include <unistd.h>
+#endif
#ifdef I_VFORK
# include <vfork.h>
#endif
-#ifdef I_VARARGS
-# include <varargs.h>
+/* Put this after #includes because fork and vfork prototypes may
+ conflict.
+*/
+#ifndef HAS_VFORK
+# define vfork fork
#endif
-#define FLUSH
+#ifdef I_FCNTL
+# include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+# include <sys/file.h>
+#endif
-static char nomem[] = "Out of memory!\n";
+#ifdef I_SYS_WAIT
+# include <sys/wait.h>
+#endif
-/* paranoid version of malloc */
+#define FLUSH
-#ifdef DEBUGGING
-static int an = 0;
+#ifdef LEAKTEST
+static void xstat _((void));
#endif
+#ifndef MYMALLOC
+
+/* paranoid version of malloc */
+
/* NOTE: Do not call the next three routines directly. Use the macros
* in handy.h, so that we can easily redefine everything to do tracking of
* allocated hunks back to the original New to track down any memory leaks.
+ * XXX This advice seems to be widely ignored :-( --AD August 1996.
*/
-char *
+Malloc_t
safemalloc(size)
MEM_SIZE size;
{
- char *ptr;
- char *malloc();
-
- ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
+ Malloc_t ptr;
+#ifdef HAS_64K_LIMIT
+ if (size > 0xffff) {
+ PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH;
+ my_exit(1);
+ }
+#endif /* HAS_64K_LIMIT */
#ifdef DEBUGGING
-# ifndef I286
- if (debug & 128)
- fprintf(stderr,"0x%x: (%05d) malloc %d bytes\n",ptr,an++,size);
-# else
- if (debug & 128)
- fprintf(stderr,"0x%lx: (%05d) malloc %d bytes\n",ptr,an++,size);
-# endif
+ if ((long)size < 0)
+ croak("panic: malloc");
+#endif
+ ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
+#if !(defined(I286) || defined(atarist))
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
+#else
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
#endif
if (ptr != Nullch)
return ptr;
+ else if (nomemok)
+ return Nullch;
else {
- fputs(nomem,stdout) FLUSH;
- exit(1);
+ PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
+ my_exit(1);
}
/*NOTREACHED*/
-#ifdef lint
- return ptr;
-#endif
}
/* paranoid version of realloc */
-char *
+Malloc_t
saferealloc(where,size)
-char *where;
+Malloc_t where;
MEM_SIZE size;
{
- char *ptr;
- char *realloc();
-
+ Malloc_t ptr;
+#if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
+ Malloc_t realloc();
+#endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */
+
+#ifdef HAS_64K_LIMIT
+ if (size > 0xffff) {
+ PerlIO_printf(PerlIO_stderr(),
+ "Reallocation too large: %lx\n", size) FLUSH;
+ my_exit(1);
+ }
+#endif /* HAS_64K_LIMIT */
if (!where)
- fatal("Null realloc");
- ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */
+ croak("Null realloc");
#ifdef DEBUGGING
-# ifndef I286
- if (debug & 128) {
- fprintf(stderr,"0x%x: (%05d) rfree\n",where,an++);
- fprintf(stderr,"0x%x: (%05d) realloc %d bytes\n",ptr,an++,size);
- }
-# else
- if (debug & 128) {
- fprintf(stderr,"0x%lx: (%05d) rfree\n",where,an++);
- fprintf(stderr,"0x%lx: (%05d) realloc %d bytes\n",ptr,an++,size);
- }
-# endif
+ if ((long)size < 0)
+ croak("panic: realloc");
+#endif
+ ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */
+
+#if !(defined(I286) || defined(atarist))
+ DEBUG_m( {
+ PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++);
+ PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
+ } )
+#else
+ DEBUG_m( {
+ PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++);
+ PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
+ } )
#endif
+
if (ptr != Nullch)
return ptr;
+ else if (nomemok)
+ return Nullch;
else {
- fputs(nomem,stdout) FLUSH;
- exit(1);
+ PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
+ my_exit(1);
}
/*NOTREACHED*/
-#ifdef lint
- return ptr;
-#endif
}
/* safe version of free */
-void
+Free_t
safefree(where)
-char *where;
+Malloc_t where;
{
-#ifdef DEBUGGING
-# ifndef I286
- if (debug & 128)
- fprintf(stderr,"0x%x: (%05d) free\n",where,an++);
-# else
- if (debug & 128)
- fprintf(stderr,"0x%lx: (%05d) free\n",where,an++);
-# endif
+#if !(defined(I286) || defined(atarist))
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
+#else
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
#endif
if (where) {
+ /*SUPPRESS 701*/
free(where);
}
}
+/* safe version of calloc */
+
+Malloc_t
+safecalloc(count, size)
+MEM_SIZE count;
+MEM_SIZE size;
+{
+ Malloc_t ptr;
+
+#ifdef HAS_64K_LIMIT
+ if (size * count > 0xffff) {
+ PerlIO_printf(PerlIO_stderr(),
+ "Allocation too large: %lx\n", size * count) FLUSH;
+ my_exit(1);
+ }
+#endif /* HAS_64K_LIMIT */
+#ifdef DEBUGGING
+ if ((long)size < 0 || (long)count < 0)
+ croak("panic: calloc");
+#endif
+ size *= count;
+ ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
+#if !(defined(I286) || defined(atarist))
+ DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
+#else
+ DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
+#endif
+ if (ptr != Nullch) {
+ memset((void*)ptr, 0, size);
+ return ptr;
+ }
+ else if (nomemok)
+ return Nullch;
+ else {
+ PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
+ my_exit(1);
+ }
+ /*NOTREACHED*/
+}
+
+#endif /* !MYMALLOC */
+
#ifdef LEAKTEST
#define ALIGN sizeof(long)
-char *
+Malloc_t
safexmalloc(x,size)
-int x;
+I32 x;
MEM_SIZE size;
{
- register char *where;
+ register Malloc_t where;
where = safemalloc(size + ALIGN);
xcount[x]++;
return where + ALIGN;
}
-char *
+Malloc_t
safexrealloc(where,size)
-char *where;
+Malloc_t where;
MEM_SIZE size;
{
- return saferealloc(where - ALIGN, size + ALIGN) + ALIGN;
+ register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
+ return new + ALIGN;
}
void
safexfree(where)
-char *where;
+Malloc_t where;
{
- int x;
+ I32 x;
if (!where)
return;
safefree(where);
}
+Malloc_t
+safexcalloc(x,count,size)
+I32 x;
+MEM_SIZE count;
+MEM_SIZE size;
+{
+ register Malloc_t where;
+
+ where = safexmalloc(x, size * count + ALIGN);
+ xcount[x]++;
+ memset((void*)where + ALIGN, 0, size * count);
+ where[0] = x % 100;
+ where[1] = x / 100;
+ return where + ALIGN;
+}
+
+static void
xstat()
{
- register int i;
+ register I32 i;
for (i = 0; i < MAXXCOUNT; i++) {
- if (xcount[i] != lastxcount[i]) {
- fprintf(stderr,"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
+ if (xcount[i] > lastxcount[i]) {
+ PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
lastxcount[i] = xcount[i];
}
}
#endif /* LEAKTEST */
-/* copy a string up to some (non-backslashed) delimiter, if any */
+/* copy a string up to some (non-backslashed) delimiter, if any;
+ If the delimiter is ';', then do not consider backslashes -
+ used only for PATH on DOSISH systems. */
char *
-cpytill(to,from,fromend,delim,retlen)
-register char *to, *from;
+delimcpy(to, toend, from, fromend, delim, retlen)
+register char *to;
+register char *toend;
+register char *from;
register char *fromend;
register int delim;
-int *retlen;
+I32 *retlen;
{
- char *origto = to;
-
- for (; from < fromend; from++,to++) {
- if (*from == '\\') {
+ register I32 tolen;
+ for (tolen = 0; from < fromend; from++, tolen++) {
+ if (*from == '\\' && delim != ';') {
if (from[1] == delim)
from++;
- else if (from[1] == '\\')
- *to++ = *from++;
+ else {
+ if (to < toend)
+ *to++ = *from;
+ tolen++;
+ from++;
+ }
}
else if (*from == delim)
break;
- *to = *from;
+ if (to < toend)
+ *to++ = *from;
}
- *to = '\0';
- *retlen = to - origto;
+ if (to < toend)
+ *to = '\0';
+ *retlen = tolen;
return from;
}
register char *little;
{
register char *s, *x;
- register int first;
+ register I32 first;
if (!little)
return big;
char *lend;
{
register char *s, *x;
- register int first = *little;
+ register I32 first = *little;
register char *littleend = lend;
- if (!first && little > littleend)
+ if (!first && little >= littleend)
return big;
+ if (bigend - big < littleend - little)
+ return Nullch;
bigend -= littleend - little++;
while (big <= bigend) {
if (*big++ != first)
{
register char *bigbeg;
register char *s, *x;
- register int first = *little;
+ register I32 first = *little;
register char *littleend = lend;
- if (!first && little > littleend)
+ if (!first && little >= littleend)
return bigend;
bigbeg = big;
big = bigend - (littleend - little++);
return Nullch;
}
-unsigned char fold[] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 9, 10, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23,
- 24, 25, 26, 27, 28, 29, 30, 31,
- 32, 33, 34, 35, 36, 37, 38, 39,
- 40, 41, 42, 43, 44, 45, 46, 47,
- 48, 49, 50, 51, 52, 53, 54, 55,
- 56, 57, 58, 59, 60, 61, 62, 63,
- 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
- 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
- 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
- 'x', 'y', 'z', 91, 92, 93, 94, 95,
- 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
- 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
- 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
- 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
- 128, 129, 130, 131, 132, 133, 134, 135,
- 136, 137, 138, 139, 140, 141, 142, 143,
- 144, 145, 146, 147, 148, 149, 150, 151,
- 152, 153, 154, 155, 156, 157, 158, 159,
- 160, 161, 162, 163, 164, 165, 166, 167,
- 168, 169, 170, 171, 172, 173, 174, 175,
- 176, 177, 178, 179, 180, 181, 182, 183,
- 184, 185, 186, 187, 188, 189, 190, 191,
- 192, 193, 194, 195, 196, 197, 198, 199,
- 200, 201, 202, 203, 204, 205, 206, 207,
- 208, 209, 210, 211, 212, 213, 214, 215,
- 216, 217, 218, 219, 220, 221, 222, 223,
- 224, 225, 226, 227, 228, 229, 230, 231,
- 232, 233, 234, 235, 236, 237, 238, 239,
- 240, 241, 242, 243, 244, 245, 246, 247,
- 248, 249, 250, 251, 252, 253, 254, 255
-};
-
-static unsigned char freq[] = {
- 1, 2, 84, 151, 154, 155, 156, 157,
- 165, 246, 250, 3, 158, 7, 18, 29,
- 40, 51, 62, 73, 85, 96, 107, 118,
- 129, 140, 147, 148, 149, 150, 152, 153,
- 255, 182, 224, 205, 174, 176, 180, 217,
- 233, 232, 236, 187, 235, 228, 234, 226,
- 222, 219, 211, 195, 188, 193, 185, 184,
- 191, 183, 201, 229, 181, 220, 194, 162,
- 163, 208, 186, 202, 200, 218, 198, 179,
- 178, 214, 166, 170, 207, 199, 209, 206,
- 204, 160, 212, 216, 215, 192, 175, 173,
- 243, 172, 161, 190, 203, 189, 164, 230,
- 167, 248, 227, 244, 242, 255, 241, 231,
- 240, 253, 169, 210, 245, 237, 249, 247,
- 239, 168, 252, 251, 254, 238, 223, 221,
- 213, 225, 177, 197, 171, 196, 159, 4,
- 5, 6, 8, 9, 10, 11, 12, 13,
- 14, 15, 16, 17, 19, 20, 21, 22,
- 23, 24, 25, 26, 27, 28, 30, 31,
- 32, 33, 34, 35, 36, 37, 38, 39,
- 41, 42, 43, 44, 45, 46, 47, 48,
- 49, 50, 52, 53, 54, 55, 56, 57,
- 58, 59, 60, 61, 63, 64, 65, 66,
- 67, 68, 69, 70, 71, 72, 74, 75,
- 76, 77, 78, 79, 80, 81, 82, 83,
- 86, 87, 88, 89, 90, 91, 92, 93,
- 94, 95, 97, 98, 99, 100, 101, 102,
- 103, 104, 105, 106, 108, 109, 110, 111,
- 112, 113, 114, 115, 116, 117, 119, 120,
- 121, 122, 123, 124, 125, 126, 127, 128,
- 130, 131, 132, 133, 134, 135, 136, 137,
- 138, 139, 141, 142, 143, 144, 145, 146
-};
+/*
+ * Set up for a new ctype locale.
+ */
+void
+perl_new_ctype(newctype)
+ char *newctype;
+{
+#ifdef USE_LOCALE_CTYPE
+
+ int i;
+
+ for (i = 0; i < 256; i++) {
+ if (isUPPER_LC(i))
+ fold_locale[i] = toLOWER_LC(i);
+ else if (isLOWER_LC(i))
+ fold_locale[i] = toUPPER_LC(i);
+ else
+ fold_locale[i] = i;
+ }
+
+#endif /* USE_LOCALE_CTYPE */
+}
+
+/*
+ * Set up for a new collation locale.
+ */
+void
+perl_new_collate(newcoll)
+ char *newcoll;
+{
+#ifdef USE_LOCALE_COLLATE
+
+ if (! newcoll) {
+ if (collation_name) {
+ ++collation_ix;
+ Safefree(collation_name);
+ collation_name = NULL;
+ collation_standard = TRUE;
+ collxfrm_base = 0;
+ collxfrm_mult = 2;
+ }
+ return;
+ }
+
+ if (! collation_name || strNE(collation_name, newcoll)) {
+ ++collation_ix;
+ Safefree(collation_name);
+ collation_name = savepv(newcoll);
+ collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX"));
+
+ {
+ /* 2: at most so many chars ('a', 'b'). */
+ /* 50: surely no system expands a char more. */
+#define XFRMBUFSIZE (2 * 50)
+ char xbuf[XFRMBUFSIZE];
+ Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE);
+ Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
+ SSize_t mult = fb - fa;
+ if (mult < 1)
+ croak("strxfrm() gets absurd");
+ collxfrm_base = (fa > mult) ? (fa - mult) : 0;
+ collxfrm_mult = mult;
+ }
+ }
+
+#endif /* USE_LOCALE_COLLATE */
+}
+
+/*
+ * Set up for a new numeric locale.
+ */
+void
+perl_new_numeric(newnum)
+ char *newnum;
+{
+#ifdef USE_LOCALE_NUMERIC
+
+ if (! newnum) {
+ if (numeric_name) {
+ Safefree(numeric_name);
+ numeric_name = NULL;
+ numeric_standard = TRUE;
+ numeric_local = TRUE;
+ }
+ return;
+ }
+
+ if (! numeric_name || strNE(numeric_name, newnum)) {
+ Safefree(numeric_name);
+ numeric_name = savepv(newnum);
+ numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX"));
+ numeric_local = TRUE;
+ }
+
+#endif /* USE_LOCALE_NUMERIC */
+}
+
+void
+perl_set_numeric_standard()
+{
+#ifdef USE_LOCALE_NUMERIC
+
+ if (! numeric_standard) {
+ setlocale(LC_NUMERIC, "C");
+ numeric_standard = TRUE;
+ numeric_local = FALSE;
+ }
+
+#endif /* USE_LOCALE_NUMERIC */
+}
+
+void
+perl_set_numeric_local()
+{
+#ifdef USE_LOCALE_NUMERIC
+
+ if (! numeric_local) {
+ setlocale(LC_NUMERIC, numeric_name);
+ numeric_standard = FALSE;
+ numeric_local = TRUE;
+ }
+
+#endif /* USE_LOCALE_NUMERIC */
+}
+
+
+/*
+ * Initialize locale awareness.
+ */
+int
+perl_init_i18nl10n(printwarn)
+ int printwarn;
+{
+ int ok = 1;
+ /* returns
+ * 1 = set ok or not applicable,
+ * 0 = fallback to C locale,
+ * -1 = fallback to C locale failed
+ */
+
+#ifdef USE_LOCALE
+
+#ifdef USE_LOCALE_CTYPE
+ char *curctype = NULL;
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ char *curcoll = NULL;
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ char *curnum = NULL;
+#endif /* USE_LOCALE_NUMERIC */
+ char *lc_all = getenv("LC_ALL");
+ char *lang = getenv("LANG");
+ bool setlocale_failure = FALSE;
+
+#ifdef LOCALE_ENVIRON_REQUIRED
+
+ /*
+ * Ultrix setlocale(..., "") fails if there are no environment
+ * variables from which to get a locale name.
+ */
+
+ bool done = FALSE;
+
+#ifdef LC_ALL
+ if (lang) {
+ if (setlocale(LC_ALL, ""))
+ done = TRUE;
+ else
+ setlocale_failure = TRUE;
+ }
+ if (!setlocale_failure)
+#endif /* LC_ALL */
+ {
+#ifdef USE_LOCALE_CTYPE
+ if (! (curctype = setlocale(LC_CTYPE,
+ (!done && (lang || getenv("LC_CTYPE")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ if (! (curcoll = setlocale(LC_COLLATE,
+ (!done && (lang || getenv("LC_COLLATE")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ if (! (curnum = setlocale(LC_NUMERIC,
+ (!done && (lang || getenv("LC_NUMERIC")))
+ ? "" : Nullch)))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_NUMERIC */
+ }
+
+#else /* !LOCALE_ENVIRON_REQUIRED */
+
+#ifdef LC_ALL
+
+ if (! setlocale(LC_ALL, ""))
+ setlocale_failure = TRUE;
+ else {
+#ifdef USE_LOCALE_CTYPE
+ curctype = setlocale(LC_CTYPE, Nullch);
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ curcoll = setlocale(LC_COLLATE, Nullch);
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ curnum = setlocale(LC_NUMERIC, Nullch);
+#endif /* USE_LOCALE_NUMERIC */
+ }
+
+#else /* !LC_ALL */
+
+#ifdef USE_LOCALE_CTYPE
+ if (! (curctype = setlocale(LC_CTYPE, "")))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ if (! (curcoll = setlocale(LC_COLLATE, "")))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ if (! (curnum = setlocale(LC_NUMERIC, "")))
+ setlocale_failure = TRUE;
+#endif /* USE_LOCALE_NUMERIC */
+
+#endif /* LC_ALL */
+
+#endif /* !LOCALE_ENVIRON_REQUIRED */
+
+ if (setlocale_failure) {
+ char *p;
+ bool locwarn = (printwarn > 1 ||
+ printwarn &&
+ (!(p = getenv("PERL_BADLANG")) || atoi(p)));
+
+ if (locwarn) {
+#ifdef LC_ALL
+
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Setting locale failed.\n");
+
+#else /* !LC_ALL */
+
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Setting locale failed for the categories:\n\t");
+#ifdef USE_LOCALE_CTYPE
+ if (! curctype)
+ PerlIO_printf(PerlIO_stderr(), "LC_CTYPE ");
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ if (! curcoll)
+ PerlIO_printf(PerlIO_stderr(), "LC_COLLATE ");
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ if (! curnum)
+ PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC ");
+#endif /* USE_LOCALE_NUMERIC */
+ PerlIO_printf(PerlIO_stderr(), "\n");
+
+#endif /* LC_ALL */
+
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Please check that your locale settings:\n");
+
+ PerlIO_printf(PerlIO_stderr(),
+ "\tLC_ALL = %c%s%c,\n",
+ lc_all ? '"' : '(',
+ lc_all ? lc_all : "unset",
+ lc_all ? '"' : ')');
+
+ {
+ char **e;
+ for (e = environ; *e; e++) {
+ if (strnEQ(*e, "LC_", 3)
+ && strnNE(*e, "LC_ALL=", 7)
+ && (p = strchr(*e, '=')))
+ PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n",
+ (p - *e), *e, p + 1);
+ }
+ }
+
+ PerlIO_printf(PerlIO_stderr(),
+ "\tLANG = %c%s%c\n",
+ lang ? '"' : '(',
+ lang ? lang : "unset",
+ lang ? '"' : ')');
+
+ PerlIO_printf(PerlIO_stderr(),
+ " are supported and installed on your system.\n");
+ }
+
+#ifdef LC_ALL
+
+ if (setlocale(LC_ALL, "C")) {
+ if (locwarn)
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Falling back to the standard locale (\"C\").\n");
+ ok = 0;
+ }
+ else {
+ if (locwarn)
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Failed to fall back to the standard locale (\"C\").\n");
+ ok = -1;
+ }
+
+#else /* ! LC_ALL */
+
+ if (0
+#ifdef USE_LOCALE_CTYPE
+ || !(curctype || setlocale(LC_CTYPE, "C"))
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ || !(curcoll || setlocale(LC_COLLATE, "C"))
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ || !(curnum || setlocale(LC_NUMERIC, "C"))
+#endif /* USE_LOCALE_NUMERIC */
+ )
+ {
+ if (locwarn)
+ PerlIO_printf(PerlIO_stderr(),
+ "perl: warning: Cannot fall back to the standard locale (\"C\").\n");
+ ok = -1;
+ }
+
+#endif /* ! LC_ALL */
+
+#ifdef USE_LOCALE_CTYPE
+ curctype = setlocale(LC_CTYPE, Nullch);
+#endif /* USE_LOCALE_CTYPE */
+#ifdef USE_LOCALE_COLLATE
+ curcoll = setlocale(LC_COLLATE, Nullch);
+#endif /* USE_LOCALE_COLLATE */
+#ifdef USE_LOCALE_NUMERIC
+ curnum = setlocale(LC_NUMERIC, Nullch);
+#endif /* USE_LOCALE_NUMERIC */
+ }
+
+#ifdef USE_LOCALE_CTYPE
+ perl_new_ctype(curctype);
+#endif /* USE_LOCALE_CTYPE */
+
+#ifdef USE_LOCALE_COLLATE
+ perl_new_collate(curcoll);
+#endif /* USE_LOCALE_COLLATE */
+
+#ifdef USE_LOCALE_NUMERIC
+ perl_new_numeric(curnum);
+#endif /* USE_LOCALE_NUMERIC */
+
+#endif /* USE_LOCALE */
+
+ return ok;
+}
+
+/* Backwards compatibility. */
+int
+perl_init_i18nl14n(printwarn)
+ int printwarn;
+{
+ return perl_init_i18nl10n(printwarn);
+}
+
+#ifdef USE_LOCALE_COLLATE
+
+/*
+ * mem_collxfrm() is a bit like strxfrm() but with two important
+ * differences. First, it handles embedded NULs. Second, it allocates
+ * a bit more memory than needed for the transformed data itself.
+ * The real transformed data begins at offset sizeof(collationix).
+ * Please see sv_collxfrm() to see how this is used.
+ */
+char *
+mem_collxfrm(s, len, xlen)
+ const char *s;
+ STRLEN len;
+ STRLEN *xlen;
+{
+ char *xbuf;
+ STRLEN xalloc, xin, xout;
+
+ /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */
+ /* the +1 is for the terminating NUL. */
+
+ xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1;
+ New(171, xbuf, xalloc, char);
+ if (! xbuf)
+ goto bad;
+
+ *(U32*)xbuf = collation_ix;
+ xout = sizeof(collation_ix);
+ for (xin = 0; xin < len; ) {
+ SSize_t xused;
+
+ for (;;) {
+ xused = strxfrm(xbuf + xout, s + xin, xalloc - xout);
+ if (xused == -1)
+ goto bad;
+ if (xused < xalloc - xout)
+ break;
+ xalloc = (2 * xalloc) + 1;
+ Renew(xbuf, xalloc, char);
+ if (! xbuf)
+ goto bad;
+ }
+
+ xin += strlen(s + xin) + 1;
+ xout += xused;
+
+ /* Embedded NULs are understood but silently skipped
+ * because they make no sense in locale collation. */
+ }
+
+ xbuf[xout] = '\0';
+ *xlen = xout - sizeof(collation_ix);
+ return xbuf;
+
+ bad:
+ Safefree(xbuf);
+ *xlen = 0;
+ return NULL;
+}
+
+#endif /* USE_LOCALE_COLLATE */
void
-fbmcompile(str, iflag)
-STR *str;
-int iflag;
+fbm_compile(sv)
+SV *sv;
{
register unsigned char *s;
register unsigned char *table;
- register int i;
- register int len = str->str_cur;
- int rarest = 0;
- int frequency = 256;
-
- str_grow(str,len+258);
-#ifndef lint
- table = (unsigned char*)(str->str_ptr + len + 1);
-#else
- table = Null(unsigned char*);
-#endif
+ register U32 i;
+ register U32 len = SvCUR(sv);
+ I32 rarest = 0;
+ U32 frequency = 256;
+
+ if (len > 255)
+ return; /* can't have offsets that big */
+ Sv_Grow(sv,len+258);
+ table = (unsigned char*)(SvPVX(sv) + len + 1);
s = table - 2;
for (i = 0; i < 256; i++) {
table[i] = len;
}
i = 0;
-#ifndef lint
- while (s >= (unsigned char*)(str->str_ptr))
-#endif
+ while (s >= (unsigned char*)(SvPVX(sv)))
{
- if (table[*s] == len) {
-#ifndef pdp11
- if (iflag)
- table[*s] = table[fold[*s]] = i;
-#else
- if (iflag) {
- int j;
- j = fold[*s];
- table[j] = i;
- table[*s] = i;
- }
-#endif /* pdp11 */
- else
- table[*s] = i;
- }
+ if (table[*s] == len)
+ table[*s] = i;
s--,i++;
}
- str->str_pok |= SP_FBM; /* deep magic */
-
-#ifndef lint
- s = (unsigned char*)(str->str_ptr); /* deeper magic */
-#else
- s = Null(unsigned char*);
-#endif
- if (iflag) {
- register int tmp, foldtmp;
- str->str_pok |= SP_CASEFOLD;
- for (i = 0; i < len; i++) {
- tmp=freq[s[i]];
- foldtmp=freq[fold[s[i]]];
- if (tmp < frequency && foldtmp < frequency) {
- rarest = i;
- /* choose most frequent among the two */
- frequency = (tmp > foldtmp) ? tmp : foldtmp;
- }
- }
- }
- else {
- for (i = 0; i < len; i++) {
- if (freq[s[i]] < frequency) {
- rarest = i;
- frequency = freq[s[i]];
- }
+ sv_upgrade(sv, SVt_PVBM);
+ sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
+ SvVALID_on(sv);
+
+ s = (unsigned char*)(SvPVX(sv)); /* deeper magic */
+ for (i = 0; i < len; i++) {
+ if (freq[s[i]] < frequency) {
+ rarest = i;
+ frequency = freq[s[i]];
}
}
- str->str_rare = s[rarest];
- str->str_state = rarest;
-#ifdef DEBUGGING
- if (debug & 512)
- fprintf(stderr,"rarest char %c at %d\n",str->str_rare, str->str_state);
-#endif
+ BmRARE(sv) = s[rarest];
+ BmPREVIOUS(sv) = rarest;
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
}
char *
-fbminstr(big, bigend, littlestr)
+fbm_instr(big, bigend, littlestr)
unsigned char *big;
register unsigned char *bigend;
-STR *littlestr;
+SV *littlestr;
{
register unsigned char *s;
- register int tmp;
- register int littlelen;
+ register I32 tmp;
+ register I32 littlelen;
register unsigned char *little;
register unsigned char *table;
register unsigned char *olds;
register unsigned char *oldlittle;
-#ifndef lint
- if (!(littlestr->str_pok & SP_FBM))
- return ninstr((char*)big,(char*)bigend,
- littlestr->str_ptr, littlestr->str_ptr + littlestr->str_cur);
-#endif
+ if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
+ STRLEN len;
+ char *l = SvPV(littlestr,len);
+ if (!len)
+ return (char*)big;
+ return ninstr((char*)big,(char*)bigend, l, l + len);
+ }
- littlelen = littlestr->str_cur;
-#ifndef lint
- if (littlestr->str_pok & SP_TAIL && !multiline) { /* tail anchored? */
- little = (unsigned char*)littlestr->str_ptr;
- if (littlestr->str_pok & SP_CASEFOLD) { /* oops, fake it */
- big = bigend - littlelen; /* just start near end */
- if (bigend[-1] == '\n' && little[littlelen-1] != '\n')
- big--;
- }
- else {
- s = bigend - littlelen;
- if (*s == *little && bcmp(s,little,littlelen)==0)
- return (char*)s; /* how sweet it is */
- else if (bigend[-1] == '\n' && little[littlelen-1] != '\n') {
- s--;
- if (*s == *little && bcmp(s,little,littlelen)==0)
- return (char*)s;
- }
+ littlelen = SvCUR(littlestr);
+ if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */
+ if (littlelen > bigend - big)
return Nullch;
+ little = (unsigned char*)SvPVX(littlestr);
+ s = bigend - littlelen;
+ if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
+ return (char*)s; /* how sweet it is */
+ else if (bigend[-1] == '\n' && little[littlelen-1] != '\n'
+ && s > big) {
+ s--;
+ if (*s == *little && memEQ((char*)s,(char*)little,littlelen))
+ return (char*)s;
}
+ return Nullch;
}
- table = (unsigned char*)(littlestr->str_ptr + littlelen + 1);
-#else
- table = Null(unsigned char*);
-#endif
- s = big + --littlelen;
+ table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1);
+ if (--littlelen >= bigend - big)
+ return Nullch;
+ s = big + littlelen;
oldlittle = little = table - 2;
- if (littlestr->str_pok & SP_CASEFOLD) { /* case insensitive? */
- while (s < bigend) {
- top1:
- if (tmp = table[*s]) {
+ if (s < bigend) {
+ top2:
+ /*SUPPRESS 560*/
+ if (tmp = table[*s]) {
+#ifdef POINTERRIGOR
+ if (bigend - s > tmp) {
s += tmp;
+ goto top2;
}
- else {
- tmp = littlelen; /* less expensive than calling strncmp() */
- olds = s;
- while (tmp--) {
- if (*--s == *--little || fold[*s] == *little)
- continue;
- s = olds + 1; /* here we pay the price for failure */
- little = oldlittle;
- if (s < bigend) /* fake up continue to outer loop */
- goto top1;
- return Nullch;
- }
-#ifndef lint
- return (char *)s;
+#else
+ if ((s += tmp) < bigend)
+ goto top2;
#endif
- }
+ return Nullch;
}
- }
- else {
- while (s < bigend) {
- top2:
- if (tmp = table[*s]) {
- s += tmp;
- }
- else {
- tmp = littlelen; /* less expensive than calling strncmp() */
- olds = s;
- while (tmp--) {
- if (*--s == *--little)
- continue;
- s = olds + 1; /* here we pay the price for failure */
- little = oldlittle;
- if (s < bigend) /* fake up continue to outer loop */
- goto top2;
- return Nullch;
- }
-#ifndef lint
- return (char *)s;
-#endif
+ else {
+ tmp = littlelen; /* less expensive than calling strncmp() */
+ olds = s;
+ while (tmp--) {
+ if (*--s == *--little)
+ continue;
+ s = olds + 1; /* here we pay the price for failure */
+ little = oldlittle;
+ if (s < bigend) /* fake up continue to outer loop */
+ goto top2;
+ return Nullch;
}
+ return (char *)s;
}
}
return Nullch;
char *
screaminstr(bigstr, littlestr)
-STR *bigstr;
-STR *littlestr;
+SV *bigstr;
+SV *littlestr;
{
register unsigned char *s, *x;
register unsigned char *big;
- register int pos;
- register int previous;
- register int first;
+ register I32 pos;
+ register I32 previous;
+ register I32 first;
register unsigned char *little;
register unsigned char *bigend;
register unsigned char *littleend;
- if ((pos = screamfirst[littlestr->str_rare]) < 0)
+ if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
return Nullch;
-#ifndef lint
- little = (unsigned char *)(littlestr->str_ptr);
-#else
- little = Null(unsigned char *);
-#endif
- littleend = little + littlestr->str_cur;
+ little = (unsigned char *)(SvPVX(littlestr));
+ littleend = little + SvCUR(littlestr);
first = *little++;
- previous = littlestr->str_state;
-#ifndef lint
- big = (unsigned char *)(bigstr->str_ptr);
-#else
- big = Null(unsigned char*);
-#endif
- bigend = big + bigstr->str_cur;
- big -= previous;
+ previous = BmPREVIOUS(littlestr);
+ big = (unsigned char *)(SvPVX(bigstr));
+ bigend = big + SvCUR(bigstr);
while (pos < previous) {
-#ifndef lint
if (!(pos += screamnext[pos]))
-#endif
return Nullch;
}
- if (littlestr->str_pok & SP_CASEFOLD) { /* case insignificant? */
- do {
- if (big[pos] != first && big[pos] != fold[first])
- continue;
- for (x=big+pos+1,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
- if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) {
- s--;
- break;
- }
- }
- if (s == littleend)
-#ifndef lint
- return (char *)(big+pos);
-#else
+#ifdef POINTERRIGOR
+ do {
+ if (big[pos-previous] != first)
+ continue;
+ for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
+ if (x >= bigend)
return Nullch;
-#endif
- } while (
-#ifndef lint
- pos += screamnext[pos] /* does this goof up anywhere? */
-#else
- pos += screamnext[0]
-#endif
- );
- }
- else {
- do {
- if (big[pos] != first)
- continue;
- for (x=big+pos+1,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
- if (*s++ != *x++) {
- s--;
- break;
- }
+ if (*s++ != *x++) {
+ s--;
+ break;
}
- if (s == littleend)
-#ifndef lint
- return (char *)(big+pos);
-#else
+ }
+ if (s == littleend)
+ return (char *)(big+pos-previous);
+ } while ( pos += screamnext[pos] );
+#else /* !POINTERRIGOR */
+ big -= previous;
+ do {
+ if (big[pos] != first)
+ continue;
+ for (x=big+pos+1,s=little; s < littleend; /**/ ) {
+ if (x >= bigend)
return Nullch;
-#endif
- } while (
-#ifndef lint
- pos += screamnext[pos]
-#else
- pos += screamnext[0]
-#endif
- );
- }
+ if (*s++ != *x++) {
+ s--;
+ break;
+ }
+ }
+ if (s == littleend)
+ return (char *)(big+pos);
+ } while ( pos += screamnext[pos] );
+#endif /* POINTERRIGOR */
return Nullch;
}
+I32
+ibcmp(s1, s2, len)
+char *s1, *s2;
+register I32 len;
+{
+ register U8 *a = (U8 *)s1;
+ register U8 *b = (U8 *)s2;
+ while (len--) {
+ if (*a != *b && *a != fold[*b])
+ return 1;
+ a++,b++;
+ }
+ return 0;
+}
+
+I32
+ibcmp_locale(s1, s2, len)
+char *s1, *s2;
+register I32 len;
+{
+ register U8 *a = (U8 *)s1;
+ register U8 *b = (U8 *)s2;
+ while (len--) {
+ if (*a != *b && *a != fold_locale[*b])
+ return 1;
+ a++,b++;
+ }
+ return 0;
+}
+
/* copy a string to a safe spot */
char *
-savestr(str)
-char *str;
+savepv(sv)
+char *sv;
{
register char *newaddr;
- New(902,newaddr,strlen(str)+1,char);
- (void)strcpy(newaddr,str);
+ New(902,newaddr,strlen(sv)+1,char);
+ (void)strcpy(newaddr,sv);
return newaddr;
}
/* same thing but with a known length */
char *
-nsavestr(str, len)
-char *str;
-register int len;
+savepvn(sv, len)
+char *sv;
+register I32 len;
{
register char *newaddr;
New(903,newaddr,len+1,char);
- (void)bcopy(str,newaddr,len); /* might not be null terminated */
+ Copy(sv,newaddr,len,char); /* might not be null terminated */
newaddr[len] = '\0'; /* is now */
return newaddr;
}
-/* grow a static string to at least a certain length */
+/* the SV for form() and mess() is not kept in an arena */
-void
-growstr(strptr,curlen,newlen)
-char **strptr;
-int *curlen;
-int newlen;
-{
- if (newlen > *curlen) { /* need more room? */
- if (*curlen)
- Renew(*strptr,newlen,char);
- else
- New(905,*strptr,newlen,char);
- *curlen = newlen;
- }
+static SV *
+mess_alloc()
+{
+ SV *sv;
+ XPVMG *any;
+
+ /* Create as PVMG now, to avoid any upgrading later */
+ New(905, sv, 1, SV);
+ Newz(905, any, 1, XPVMG);
+ SvFLAGS(sv) = SVt_PVMG;
+ SvANY(sv) = (void*)any;
+ SvREFCNT(sv) = 1 << 30; /* practically infinite */
+ return sv;
}
-#ifndef VARARGS
-/*VARARGS1*/
-mess(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+#ifdef I_STDARG
+char *
+form(const char* pat, ...)
+#else
+/*VARARGS0*/
+char *
+form(pat, va_alist)
+ const char *pat;
+ va_dcl
+#endif
{
- char *s;
-
- s = buf;
- (void)sprintf(s,pat,a1,a2,a3,a4);
- s += strlen(s);
- if (s[-1] != '\n') {
- if (line) {
- (void)sprintf(s," at %s line %ld",
- in_eval?filename:origfilename, (long)line);
- s += strlen(s);
- }
- if (last_in_stab &&
- stab_io(last_in_stab) &&
- stab_io(last_in_stab)->lines ) {
- (void)sprintf(s,", <%s> line %ld",
- last_in_stab == argvstab ? "" : stab_name(last_in_stab),
- (long)stab_io(last_in_stab)->lines);
- s += strlen(s);
- }
- (void)strcpy(s,".\n");
- }
+ va_list args;
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
+ va_start(args);
+#endif
+ if (!mess_sv)
+ mess_sv = mess_alloc();
+ sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
+ va_end(args);
+ return SvPVX(mess_sv);
}
-/*VARARGS1*/
-fatal(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+char *
+mess(pat, args)
+ const char *pat;
+ va_list *args;
{
- extern FILE *e_fp;
- extern char *e_tmpname;
- char *tmps;
-
- mess(pat,a1,a2,a3,a4);
- if (in_eval) {
- str_set(stab_val(stabent("@",TRUE)),buf);
- tmps = "_EVAL_";
- while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
- strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
-#ifdef DEBUGGING
- if (debug & 4) {
- deb("(Skipping label #%d %s)\n",loop_ptr,
- loop_stack[loop_ptr].loop_label);
- }
-#endif
- loop_ptr--;
- }
-#ifdef DEBUGGING
- if (debug & 4) {
- deb("(Found label #%d %s)\n",loop_ptr,
- loop_stack[loop_ptr].loop_label);
- }
-#endif
- if (loop_ptr < 0) {
- in_eval = 0;
- fatal("Bad label: %s", tmps);
+ SV *sv;
+ static char dgd[] = " during global destruction.\n";
+
+ if (!mess_sv)
+ mess_sv = mess_alloc();
+ sv = mess_sv;
+ sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
+ if (dirty)
+ sv_catpv(sv, dgd);
+ else {
+ if (curcop->cop_line)
+ sv_catpvf(sv, " at %_ line %ld",
+ GvSV(curcop->cop_filegv), (long)curcop->cop_line);
+ if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) {
+ bool line_mode = (RsSIMPLE(rs) &&
+ SvLEN(rs) == 1 && *SvPVX(rs) == '\n');
+ sv_catpvf(sv, ", <%s> %s %ld",
+ last_in_gv == argvgv ? "" : GvNAME(last_in_gv),
+ line_mode ? "line" : "chunk",
+ (long)IoLINES(GvIOp(last_in_gv)));
+ }
+ sv_catpv(sv, ".\n");
}
- longjmp(loop_stack[loop_ptr].loop_env, 1);
}
- fputs(buf,stderr);
- (void)fflush(stderr);
- if (e_fp)
- (void)UNLINK(e_tmpname);
- statusvalue >>= 8;
- exit(errno?errno:(statusvalue?statusvalue:255));
+ return SvPVX(sv);
}
-/*VARARGS1*/
-warn(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
-{
- mess(pat,a1,a2,a3,a4);
- fputs(buf,stderr);
-#ifdef LEAKTEST
-#ifdef DEBUGGING
- if (debug & 4096)
- xstat();
-#endif
-#endif
- (void)fflush(stderr);
-}
+#ifdef I_STDARG
+OP *
+die(const char* pat, ...)
#else
/*VARARGS0*/
-mess(args)
-va_list args;
-{
- char *pat;
- char *s;
-#ifdef CHARVSPRINTF
- char *vsprintf();
-#else
- int vsprintf();
+OP *
+die(pat, va_alist)
+ const char *pat;
+ va_dcl
#endif
+{
+ va_list args;
+ char *message;
+ I32 oldrunlevel = runlevel;
+ int was_in_eval = in_eval;
+ HV *stash;
+ GV *gv;
+ CV *cv;
+
+ /* We have to switch back to mainstack or die_where may try to pop
+ * the eval block from the wrong stack if die is being called from a
+ * signal handler. - dkindred@cs.cmu.edu */
+ if (curstack != mainstack) {
+ dSP;
+ SWITCHSTACK(curstack, mainstack);
+ }
- s = buf;
-#ifdef lint
- pat = Nullch;
+#ifdef I_STDARG
+ va_start(args, pat);
#else
- pat = va_arg(args, char *);
+ va_start(args);
#endif
- (void) vsprintf(s,pat,args);
+ message = mess(pat, &args);
+ va_end(args);
- s += strlen(s);
- if (s[-1] != '\n') {
- if (line) {
- (void)sprintf(s," at %s line %ld",
- in_eval?filename:origfilename, (long)line);
- s += strlen(s);
- }
- if (last_in_stab &&
- stab_io(last_in_stab) &&
- stab_io(last_in_stab)->lines ) {
- (void)sprintf(s,", <%s> line %ld",
- last_in_stab == argvstab ? "" : last_in_stab->str_magic->str_ptr,
- (long)stab_io(last_in_stab)->lines);
- s += strlen(s);
+ if (diehook) {
+ /* sv_2cv might call croak() */
+ SV *olddiehook = diehook;
+ ENTER;
+ SAVESPTR(diehook);
+ diehook = Nullsv;
+ cv = sv_2cv(olddiehook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
+ dSP;
+ SV *msg;
+
+ ENTER;
+ msg = newSVpv(message, 0);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+
+ PUSHMARK(sp);
+ XPUSHs(msg);
+ PUTBACK;
+ perl_call_sv((SV*)cv, G_DISCARD);
+
+ LEAVE;
}
- (void)strcpy(s,".\n");
}
+
+ restartop = die_where(message);
+ if ((!restartop && was_in_eval) || oldrunlevel > 1)
+ JMPENV_JUMP(3);
+ return restartop;
}
+#ifdef I_STDARG
+void
+croak(const char* pat, ...)
+#else
/*VARARGS0*/
-fatal(va_alist)
-va_dcl
+void
+croak(pat, va_alist)
+ char *pat;
+ va_dcl
+#endif
{
va_list args;
- extern FILE *e_fp;
- extern char *e_tmpname;
- char *tmps;
+ char *message;
+ HV *stash;
+ GV *gv;
+ CV *cv;
-#ifndef lint
- va_start(args);
+#ifdef I_STDARG
+ va_start(args, pat);
#else
- args = 0;
+ va_start(args);
#endif
- mess(args);
+ message = mess(pat, &args);
va_end(args);
- if (in_eval) {
- str_set(stab_val(stabent("@",TRUE)),buf);
- tmps = "_EVAL_";
- while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
- strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
-#ifdef DEBUGGING
- if (debug & 4) {
- deb("(Skipping label #%d %s)\n",loop_ptr,
- loop_stack[loop_ptr].loop_label);
- }
-#endif
- loop_ptr--;
- }
-#ifdef DEBUGGING
- if (debug & 4) {
- deb("(Found label #%d %s)\n",loop_ptr,
- loop_stack[loop_ptr].loop_label);
- }
-#endif
- if (loop_ptr < 0) {
- in_eval = 0;
- fatal("Bad label: %s", tmps);
+ if (diehook) {
+ /* sv_2cv might call croak() */
+ SV *olddiehook = diehook;
+ ENTER;
+ SAVESPTR(diehook);
+ diehook = Nullsv;
+ cv = sv_2cv(olddiehook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
+ dSP;
+ SV *msg;
+
+ ENTER;
+ msg = newSVpv(message, 0);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+
+ PUSHMARK(sp);
+ XPUSHs(msg);
+ PUTBACK;
+ perl_call_sv((SV*)cv, G_DISCARD);
+
+ LEAVE;
}
- longjmp(loop_stack[loop_ptr].loop_env, 1);
}
- fputs(buf,stderr);
- (void)fflush(stderr);
- if (e_fp)
- (void)UNLINK(e_tmpname);
- statusvalue >>= 8;
- exit((int)(errno?errno:(statusvalue?statusvalue:255)));
+ if (in_eval) {
+ restartop = die_where(message);
+ JMPENV_JUMP(3);
+ }
+ PerlIO_puts(PerlIO_stderr(),message);
+ (void)PerlIO_flush(PerlIO_stderr());
+ my_failure_exit();
}
+void
+#ifdef I_STDARG
+warn(const char* pat,...)
+#else
/*VARARGS0*/
-warn(va_alist)
-va_dcl
+warn(pat,va_alist)
+ const char *pat;
+ va_dcl
+#endif
{
va_list args;
+ char *message;
+ HV *stash;
+ GV *gv;
+ CV *cv;
-#ifndef lint
- va_start(args);
+#ifdef I_STDARG
+ va_start(args, pat);
#else
- args = 0;
+ va_start(args);
#endif
- mess(args);
+ message = mess(pat, &args);
va_end(args);
- fputs(buf,stderr);
+ if (warnhook) {
+ /* sv_2cv might call warn() */
+ SV *oldwarnhook = warnhook;
+ ENTER;
+ SAVESPTR(warnhook);
+ warnhook = Nullsv;
+ cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
+ dSP;
+ SV *msg;
+
+ ENTER;
+ msg = newSVpv(message, 0);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
+
+ PUSHMARK(sp);
+ XPUSHs(msg);
+ PUTBACK;
+ perl_call_sv((SV*)cv, G_DISCARD);
+
+ LEAVE;
+ return;
+ }
+ }
+ PerlIO_puts(PerlIO_stderr(),message);
#ifdef LEAKTEST
-#ifdef DEBUGGING
- if (debug & 4096)
- xstat();
-#endif
+ DEBUG_L(xstat());
#endif
- (void)fflush(stderr);
+ (void)PerlIO_flush(PerlIO_stderr());
}
-#endif
-
-static bool firstsetenv = TRUE;
-extern char **environ;
+#ifndef VMS /* VMS' my_setenv() is in VMS.c */
+#ifndef WIN32
void
-setenv(nam,val)
+my_setenv(nam,val)
char *nam, *val;
{
- register int i=envix(nam); /* where does it go? */
-
+ register I32 i=setenv_getix(nam); /* where does it go? */
+
+ if (environ == origenviron) { /* need we copy environment? */
+ I32 j;
+ I32 max;
+ char **tmpenv;
+
+ /*SUPPRESS 530*/
+ for (max = i; environ[max]; max++) ;
+ New(901,tmpenv, max+2, char*);
+ for (j=0; j<max; j++) /* copy environment */
+ tmpenv[j] = savepv(environ[j]);
+ tmpenv[max] = Nullch;
+ environ = tmpenv; /* tell exec where it is now */
+ }
if (!val) {
+ Safefree(environ[i]);
while (environ[i]) {
environ[i] = environ[i+1];
i++;
return;
}
if (!environ[i]) { /* does not exist yet */
- if (firstsetenv) { /* need we copy environment? */
- int j;
- char **tmpenv;
-
- New(901,tmpenv, i+2, char*);
- firstsetenv = FALSE;
- for (j=0; j<i; j++) /* copy environment */
- tmpenv[j] = environ[j];
- environ = tmpenv; /* tell exec where it is now */
- }
- else
- Renew(environ, i+2, char*); /* just expand it a bit */
+ Renew(environ, i+2, char*); /* just expand it a bit */
environ[i+1] = Nullch; /* make sure it's null terminated */
}
+ else
+ Safefree(environ[i]);
New(904, environ[i], strlen(nam) + strlen(val) + 2, char);
- /* this may or may not be in */
- /* the old environ structure */
+#ifndef MSDOS
(void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */
+#else
+ /* MS-DOS requires environment variable names to be in uppercase */
+ /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but
+ * some utilities and applications may break because they only look
+ * for upper case strings. (Fixed strupr() bug here.)]
+ */
+ strcpy(environ[i],nam); strupr(environ[i]);
+ (void)sprintf(environ[i] + strlen(nam),"=%s",val);
+#endif /* MSDOS */
}
-int
-envix(nam)
+#else /* if WIN32 */
+
+void
+my_setenv(nam,val)
+char *nam, *val;
+{
+
+#ifdef USE_WIN32_RTL_ENV
+
+ register char *envstr;
+ STRLEN namlen = strlen(nam);
+ STRLEN vallen;
+ char *oldstr = environ[setenv_getix(nam)];
+
+ /* putenv() has totally broken semantics in both the Borland
+ * and Microsoft CRTLs. They either store the passed pointer in
+ * the environment without making a copy, or make a copy and don't
+ * free it. And on top of that, they dont free() old entries that
+ * are being replaced/deleted. This means the caller must
+ * free any old entries somehow, or we end up with a memory
+ * leak every time my_setenv() is called. One might think
+ * one could directly manipulate environ[], like the UNIX code
+ * above, but direct changes to environ are not allowed when
+ * calling putenv(), since the RTLs maintain an internal
+ * *copy* of environ[]. Bad, bad, *bad* stink.
+ * GSAR 97-06-07
+ */
+
+ if (!val) {
+ if (!oldstr)
+ return;
+ val = "";
+ vallen = 0;
+ }
+ else
+ vallen = strlen(val);
+ New(904, envstr, namlen + vallen + 3, char);
+ (void)sprintf(envstr,"%s=%s",nam,val);
+ (void)putenv(envstr);
+ if (oldstr)
+ Safefree(oldstr);
+#ifdef _MSC_VER
+ Safefree(envstr); /* MSVCRT leaks without this */
+#endif
+
+#else /* !USE_WIN32_RTL_ENV */
+
+ /* The sane way to deal with the environment.
+ * Has these advantages over putenv() & co.:
+ * * enables us to store a truly empty value in the
+ * environment (like in UNIX).
+ * * we don't have to deal with RTL globals, bugs and leaks.
+ * * Much faster.
+ * Why you may want to enable USE_WIN32_RTL_ENV:
+ * * environ[] and RTL functions will not reflect changes,
+ * which might be an issue if extensions want to access
+ * the env. via RTL. This cuts both ways, since RTL will
+ * not see changes made by extensions that call the Win32
+ * functions directly, either.
+ * GSAR 97-06-07
+ */
+ SetEnvironmentVariable(nam,val);
+
+#endif
+}
+
+#endif /* WIN32 */
+
+I32
+setenv_getix(nam)
char *nam;
{
- register int i, len = strlen(nam);
+ register I32 i, len = strlen(nam);
for (i = 0; environ[i]; i++) {
- if (strnEQ(environ[i],nam,len) && environ[i][len] == '=')
+ if (
+#ifdef WIN32
+ strnicmp(environ[i],nam,len) == 0
+#else
+ strnEQ(environ[i],nam,len)
+#endif
+ && environ[i][len] == '=')
break; /* strnEQ must come first to avoid */
} /* potential SEGV's */
return i;
}
-#ifdef EUNICE
+#endif /* !VMS */
+
+#ifdef UNLINK_ALL_VERSIONS
+I32
unlnk(f) /* unlink all versions of a file */
char *f;
{
- int i;
+ I32 i;
for (i = 0; unlink(f) >= 0; i++) ;
return i ? 0 : -1;
}
#endif
-#ifndef MEMCPY
-#ifndef BCOPY
+#if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
char *
-bcopy(from,to,len)
+my_bcopy(from,to,len)
register char *from;
register char *to;
-register int len;
+register I32 len;
{
char *retval = to;
+ if (from - to >= 0) {
+ while (len--)
+ *to++ = *from++;
+ }
+ else {
+ to += len;
+ from += len;
+ while (len--)
+ *(--to) = *(--from);
+ }
+ return retval;
+}
+#endif
+
+#ifndef HAS_MEMSET
+void *
+my_memset(loc,ch,len)
+register char *loc;
+register I32 ch;
+register I32 len;
+{
+ char *retval = loc;
+
while (len--)
- *to++ = *from++;
+ *loc++ = ch;
return retval;
}
#endif
-#ifndef BZERO
+#if !defined(HAS_BZERO) && !defined(HAS_MEMSET)
char *
-bzero(loc,len)
+my_bzero(loc,len)
register char *loc;
-register int len;
+register I32 len;
{
char *retval = loc;
return retval;
}
#endif
-#endif
-#ifdef VARARGS
-#ifndef VPRINTF
+#if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP)
+I32
+my_memcmp(s1,s2,len)
+char *s1;
+char *s2;
+register I32 len;
+{
+ register U8 *a = (U8 *)s1;
+ register U8 *b = (U8 *)s2;
+ register I32 tmp;
+
+ while (len--) {
+ if (tmp = *a++ - *b++)
+ return tmp;
+ }
+ return 0;
+}
+#endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */
+
+#if defined(I_STDARG) || defined(I_VARARGS)
+#ifndef HAS_VPRINTF
-#ifdef CHARVSPRINTF
+#ifdef USE_CHAR_VSPRINTF
char *
#else
int
#endif
vsprintf(dest, pat, args)
-char *dest, *pat, *args;
+char *dest;
+const char *pat;
+char *args;
{
FILE fakebuf;
fakebuf._ptr = dest;
fakebuf._cnt = 32767;
+#ifndef _IOSTRG
+#define _IOSTRG 0
+#endif
fakebuf._flag = _IOWRT|_IOSTRG;
_doprnt(pat, args, &fakebuf); /* what a kludge */
(void)putc('\0', &fakebuf);
-#ifdef CHARVSPRINTF
+#ifdef USE_CHAR_VSPRINTF
return(dest);
#else
return 0; /* perl doesn't use return value */
#endif
}
-#ifdef DEBUGGING
-int
-vfprintf(fd, pat, args)
-FILE *fd;
-char *pat, *args;
-{
- _doprnt(pat, args, fd);
- return 0; /* wrong, but perl doesn't use the return value */
-}
-#endif
-#endif /* VPRINTF */
-#endif /* VARARGS */
+#endif /* HAS_VPRINTF */
+#endif /* I_VARARGS || I_STDARGS */
#ifdef MYSWAP
#if BYTEORDER != 0x4321
short
+#ifndef CAN_PROTOTYPE
my_swap(s)
short s;
+#else
+my_swap(short s)
+#endif
{
#if (BYTEORDER & 1) == 0
short result;
}
long
-htonl(l)
+#ifndef CAN_PROTOTYPE
+my_htonl(l)
register long l;
+#else
+my_htonl(long l)
+#endif
{
union {
long result;
return u.result;
#else
#if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
- fatal("Unknown BYTEORDER\n");
+ croak("Unknown BYTEORDER\n");
#else
- register int o;
- register int s;
+ register I32 o;
+ register I32 s;
for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) {
u.c[o & 0xf] = (l >> s) & 255;
}
long
-ntohl(l)
+#ifndef CAN_PROTOTYPE
+my_ntohl(l)
register long l;
+#else
+my_ntohl(long l)
+#endif
{
union {
long l;
return u.l;
#else
#if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf)
- fatal("Unknown BYTEORDER\n");
+ croak("Unknown BYTEORDER\n");
#else
- register int o;
- register int s;
+ register I32 o;
+ register I32 s;
u.l = l;
l = 0;
}
#endif /* BYTEORDER != 0x4321 */
-#endif /* HTONS */
+#endif /* MYSWAP */
+
+/*
+ * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
+ * If these functions are defined,
+ * the BYTEORDER is neither 0x1234 nor 0x4321.
+ * However, this is not assumed.
+ * -DWS
+ */
+
+#define HTOV(name,type) \
+ type \
+ name (n) \
+ register type n; \
+ { \
+ union { \
+ type value; \
+ char c[sizeof(type)]; \
+ } u; \
+ register I32 i; \
+ register I32 s; \
+ for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
+ u.c[i] = (n >> s) & 0xFF; \
+ } \
+ return u.value; \
+ }
+
+#define VTOH(name,type) \
+ type \
+ name (n) \
+ register type n; \
+ { \
+ union { \
+ type value; \
+ char c[sizeof(type)]; \
+ } u; \
+ register I32 i; \
+ register I32 s; \
+ u.value = n; \
+ n = 0; \
+ for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \
+ n += (u.c[i] & 0xFF) << s; \
+ } \
+ return n; \
+ }
+
+#if defined(HAS_HTOVS) && !defined(htovs)
+HTOV(htovs,short)
+#endif
+#if defined(HAS_HTOVL) && !defined(htovl)
+HTOV(htovl,long)
+#endif
+#if defined(HAS_VTOHS) && !defined(vtohs)
+VTOH(vtohs,short)
+#endif
+#if defined(HAS_VTOHL) && !defined(vtohl)
+VTOH(vtohl,long)
+#endif
-FILE *
-mypopen(cmd,mode)
+ /* VMS' my_popen() is in VMS.c, same with OS/2. */
+#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
+PerlIO *
+my_popen(cmd,mode)
char *cmd;
char *mode;
{
int p[2];
- register int this, that;
- register int pid;
- STR *str;
- int doexec = strNE(cmd,"-");
-
+ register I32 this, that;
+ register I32 pid;
+ SV *sv;
+ I32 doexec = strNE(cmd,"-");
+
+#ifdef OS2
+ if (doexec) {
+ return my_syspopen(cmd,mode);
+ }
+#endif
if (pipe(p) < 0)
return Nullfp;
this = (*mode == 'w');
that = !this;
+ if (doexec && tainting) {
+ taint_env();
+ taint_proper("Insecure %s%s", "EXEC");
+ }
while ((pid = (doexec?vfork():fork())) < 0) {
if (errno != EAGAIN) {
close(p[this]);
if (!doexec)
- fatal("Can't fork");
+ croak("Can't fork");
return Nullfp;
}
sleep(5);
}
if (pid == 0) {
+ GV* tmpgv;
+
#define THIS that
#define THAT this
close(p[THAT]);
close(p[THIS]);
}
if (doexec) {
-#if !defined(FCNTL) || !defined(F_SETFD)
+#if !defined(HAS_FCNTL) || !defined(F_SETFD)
int fd;
#ifndef NOFILE
#define NOFILE 20
#endif
- for (fd = 3; fd < NOFILE; fd++)
+ for (fd = maxsysfd + 1; fd < NOFILE; fd++)
close(fd);
#endif
do_exec(cmd); /* may or may not use the shell */
_exit(1);
}
- if (tmpstab = stabent("$",allstabs))
- str_numset(STAB_STR(tmpstab),(double)getpid());
+ /*SUPPRESS 560*/
+ if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
+ sv_setiv(GvSV(tmpgv), (IV)getpid());
forkprocess = 0;
+ hv_clear(pidstatus); /* we have no children */
return Nullfp;
#undef THIS
#undef THAT
}
+ do_execfree(); /* free any memory malloced by child on vfork */
close(p[that]);
- str = afetch(pidstatary,p[this],TRUE);
- str_numset(str,(double)pid);
- str->str_cur = 0;
+ if (p[that] < p[this]) {
+ dup2(p[this], p[that]);
+ close(p[this]);
+ p[this] = p[that];
+ }
+ sv = *av_fetch(fdpid,p[this],TRUE);
+ (void)SvUPGRADE(sv,SVt_IV);
+ SvIVX(sv) = pid;
forkprocess = pid;
- return fdopen(p[this], mode);
+ return PerlIO_fdopen(p[this], mode);
}
+#else
+#if defined(atarist) || defined(DJGPP)
+FILE *popen();
+PerlIO *
+my_popen(cmd,mode)
+char *cmd;
+char *mode;
+{
+ /* Needs work for PerlIO ! */
+ /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */
+ return popen(PerlIO_exportFILE(cmd, 0), mode);
+}
+#endif
-#ifdef NOTDEF
-dumpfds(s)
+#endif /* !DOSISH */
+
+#ifdef DUMP_FDS
+dump_fds(s)
char *s;
{
int fd;
struct stat tmpstatbuf;
- fprintf(stderr,"%s", s);
+ PerlIO_printf(PerlIO_stderr(),"%s", s);
for (fd = 0; fd < 32; fd++) {
- if (fstat(fd,&tmpstatbuf) >= 0)
- fprintf(stderr," %d",fd);
+ if (Fstat(fd,&tmpstatbuf) >= 0)
+ PerlIO_printf(PerlIO_stderr()," %d",fd);
}
- fprintf(stderr,"\n");
+ PerlIO_printf(PerlIO_stderr(),"\n");
}
#endif
-#ifndef DUP2
+#ifndef HAS_DUP2
+int
dup2(oldfd,newfd)
int oldfd;
int newfd;
{
- int fdtmp[10];
- int fdx = 0;
+#if defined(HAS_FCNTL) && defined(F_DUPFD)
+ if (oldfd == newfd)
+ return oldfd;
+ close(newfd);
+ return fcntl(oldfd, F_DUPFD, newfd);
+#else
+#define DUP2_MAX_FDS 256
+ int fdtmp[DUP2_MAX_FDS];
+ I32 fdx = 0;
int fd;
+ if (oldfd == newfd)
+ return oldfd;
close(newfd);
- while ((fd = dup(oldfd)) != newfd) /* good enough for low fd's */
+ /* good enough for low fd's... */
+ while ((fd = dup(oldfd)) != newfd && fd >= 0) {
+ if (fdx >= DUP2_MAX_FDS) {
+ close(fd);
+ fd = -1;
+ break;
+ }
fdtmp[fdx++] = fd;
+ }
while (fdx > 0)
close(fdtmp[--fdx]);
+ return fd;
+#endif
}
#endif
+
+#ifdef HAS_SIGACTION
+
+Sighandler_t
+rsignal(signo, handler)
+int signo;
+Sighandler_t handler;
+{
+ struct sigaction act, oact;
+
+ act.sa_handler = handler;
+ sigemptyset(&act.sa_mask);
+ act.sa_flags = 0;
+#ifdef SA_RESTART
+ act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
+#endif
+ if (sigaction(signo, &act, &oact) == -1)
+ return SIG_ERR;
+ else
+ return oact.sa_handler;
+}
+
+Sighandler_t
+rsignal_state(signo)
+int signo;
+{
+ struct sigaction oact;
+
+ if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1)
+ return SIG_ERR;
+ else
+ return oact.sa_handler;
+}
+
int
-mypclose(ptr)
-FILE *ptr;
+rsignal_save(signo, handler, save)
+int signo;
+Sighandler_t handler;
+Sigsave_t *save;
{
- register int result;
-#ifdef VOIDSIG
- void (*hstat)(), (*istat)(), (*qstat)();
-#else
- int (*hstat)(), (*istat)(), (*qstat)();
+ struct sigaction act;
+
+ act.sa_handler = handler;
+ sigemptyset(&act.sa_mask);
+ act.sa_flags = 0;
+#ifdef SA_RESTART
+ act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
#endif
+ return sigaction(signo, &act, save);
+}
+
+int
+rsignal_restore(signo, save)
+int signo;
+Sigsave_t *save;
+{
+ return sigaction(signo, save, (struct sigaction *)NULL);
+}
+
+#else /* !HAS_SIGACTION */
+
+Sighandler_t
+rsignal(signo, handler)
+int signo;
+Sighandler_t handler;
+{
+ return signal(signo, handler);
+}
+
+static int sig_trapped;
+
+static
+Signal_t
+sig_trap(signo)
+int signo;
+{
+ sig_trapped++;
+}
+
+Sighandler_t
+rsignal_state(signo)
+int signo;
+{
+ Sighandler_t oldsig;
+
+ sig_trapped = 0;
+ oldsig = signal(signo, sig_trap);
+ signal(signo, oldsig);
+ if (sig_trapped)
+ kill(getpid(), signo);
+ return oldsig;
+}
+
+int
+rsignal_save(signo, handler, save)
+int signo;
+Sighandler_t handler;
+Sigsave_t *save;
+{
+ *save = signal(signo, handler);
+ return (*save == SIG_ERR) ? -1 : 0;
+}
+
+int
+rsignal_restore(signo, save)
+int signo;
+Sigsave_t *save;
+{
+ return (signal(signo, *save) == SIG_ERR) ? -1 : 0;
+}
+
+#endif /* !HAS_SIGACTION */
+
+ /* VMS' my_pclose() is in VMS.c; same with OS/2 */
+#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
+I32
+my_pclose(ptr)
+PerlIO *ptr;
+{
+ Sigsave_t hstat, istat, qstat;
int status;
- STR *str;
- register int pid;
+ SV **svp;
+ int pid;
+ bool close_failed;
+ int saved_errno;
+#ifdef VMS
+ int saved_vaxc_errno;
+#endif
+
+ svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE);
+ pid = (int)SvIVX(*svp);
+ SvREFCNT_dec(*svp);
+ *svp = &sv_undef;
+#ifdef OS2
+ if (pid == -1) { /* Opened by popen. */
+ return my_syspclose(ptr);
+ }
+#endif
+ if ((close_failed = (PerlIO_close(ptr) == EOF))) {
+ saved_errno = errno;
+#ifdef VMS
+ saved_vaxc_errno = vaxc$errno;
+#endif
+ }
+#ifdef UTS
+ if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */
+#endif
+ rsignal_save(SIGHUP, SIG_IGN, &hstat);
+ rsignal_save(SIGINT, SIG_IGN, &istat);
+ rsignal_save(SIGQUIT, SIG_IGN, &qstat);
+ do {
+ pid = wait4pid(pid, &status, 0);
+ } while (pid == -1 && errno == EINTR);
+ rsignal_restore(SIGHUP, &hstat);
+ rsignal_restore(SIGINT, &istat);
+ rsignal_restore(SIGQUIT, &qstat);
+ if (close_failed) {
+ SETERRNO(saved_errno, saved_vaxc_errno);
+ return -1;
+ }
+ return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status));
+}
+#endif /* !DOSISH */
+
+#if !defined(DOSISH) || defined(OS2)
+I32
+wait4pid(pid,statusp,flags)
+int pid;
+int *statusp;
+int flags;
+{
+ SV *sv;
+ SV** svp;
+ char spid[TYPE_CHARS(int)];
- str = afetch(pidstatary,fileno(ptr),TRUE);
- fclose(ptr);
- pid = (int)str_gnum(str);
if (!pid)
return -1;
- hstat = signal(SIGHUP, SIG_IGN);
- istat = signal(SIGINT, SIG_IGN);
- qstat = signal(SIGQUIT, SIG_IGN);
-#ifdef WAIT4
- if (wait4(pid,&status,0,Null(struct rusage *)) < 0)
- status = -1;
-#else
- if (pid < 0) /* already exited? */
- status = str->str_cur;
+ if (pid > 0) {
+ sprintf(spid, "%d", pid);
+ svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE);
+ if (svp && *svp != &sv_undef) {
+ *statusp = SvIVX(*svp);
+ (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
+ return pid;
+ }
+ }
else {
- while ((result = wait(&status)) != pid && result >= 0)
- pidgone(result,status);
- if (result < 0)
- status = -1;
+ HE *entry;
+
+ hv_iterinit(pidstatus);
+ if (entry = hv_iternext(pidstatus)) {
+ pid = atoi(hv_iterkey(entry,(I32*)statusp));
+ sv = hv_iterval(pidstatus,entry);
+ *statusp = SvIVX(sv);
+ sprintf(spid, "%d", pid);
+ (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
+ return pid;
+ }
+ }
+#ifdef HAS_WAITPID
+ return waitpid(pid,statusp,flags);
+#else
+#ifdef HAS_WAIT4
+ return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+#else
+ {
+ I32 result;
+ if (flags)
+ croak("Can't do waitpid with flags");
+ else {
+ while ((result = wait(statusp)) != pid && pid > 0 && result >= 0)
+ pidgone(result,*statusp);
+ if (result < 0)
+ *statusp = -1;
+ }
+ return result;
}
#endif
- signal(SIGHUP, hstat);
- signal(SIGINT, istat);
- signal(SIGQUIT, qstat);
- str_numset(str,0.0);
- return(status);
+#endif
}
+#endif /* !DOSISH */
+void
+/*SUPPRESS 590*/
pidgone(pid,status)
int pid;
int status;
{
-#ifdef WAIT4
+ register SV *sv;
+ char spid[TYPE_CHARS(int)];
+
+ sprintf(spid, "%d", pid);
+ sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE);
+ (void)SvUPGRADE(sv,SVt_IV);
+ SvIVX(sv) = status;
return;
-#else
- register int count;
- register STR *str;
-
- for (count = pidstatary->ary_fill; count >= 0; --count) {
- if ((str = afetch(pidstatary,count,FALSE)) &&
- ((int)str->str_u.str_nval) == pid) {
- str_numset(str, -str->str_u.str_nval);
- str->str_cur = status;
- return;
- }
- }
-#endif
}
-#ifndef MEMCMP
-memcmp(s1,s2,len)
-register unsigned char *s1;
-register unsigned char *s2;
-register int len;
+#if defined(atarist) || defined(OS2) || defined(DJGPP)
+int pclose();
+#ifdef HAS_FORK
+int /* Cannot prototype with I32
+ in os2ish.h. */
+my_syspclose(ptr)
+#else
+I32
+my_pclose(ptr)
+#endif
+PerlIO *ptr;
{
- register int tmp;
-
- while (len--) {
- if (tmp = *s1++ - *s2++)
- return tmp;
- }
- return 0;
+ /* Needs work for PerlIO ! */
+ FILE *f = PerlIO_findFILE(ptr);
+ I32 result = pclose(f);
+ PerlIO_releaseFILE(ptr,f);
+ return result;
}
-#endif /* MEMCMP */
+#endif
void
repeatcpy(to,from,len,count)
register char *to;
register char *from;
-int len;
-register int count;
+I32 len;
+register I32 count;
{
- register int todo;
+ register I32 todo;
register char *frombase = from;
if (len == 1) {
from = frombase;
}
}
+
+#ifndef CASTNEGFLOAT
+U32
+cast_ulong(f)
+double f;
+{
+ long along;
+
+#if CASTFLAGS & 2
+# define BIGDOUBLE 2147483648.0
+ if (f >= BIGDOUBLE)
+ return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000;
+#endif
+ if (f >= 0.0)
+ return (unsigned long)f;
+ along = (long)f;
+ return (unsigned long)along;
+}
+# undef BIGDOUBLE
+#endif
+
+#ifndef CASTI32
+
+/* Unfortunately, on some systems the cast_uv() function doesn't
+ work with the system-supplied definition of ULONG_MAX. The
+ comparison (f >= ULONG_MAX) always comes out true. It must be a
+ problem with the compiler constant folding.
+
+ In any case, this workaround should be fine on any two's complement
+ system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your
+ ccflags.
+ --Andy Dougherty <doughera@lafcol.lafayette.edu>
+*/
+
+/* Code modified to prefer proper named type ranges, I32, IV, or UV, instead
+ of LONG_(MIN/MAX).
+ -- Kenneth Albanowski <kjahds@kjahds.com>
+*/
+
+#ifndef MY_UV_MAX
+# define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1)
+#endif
+
+I32
+cast_i32(f)
+double f;
+{
+ if (f >= I32_MAX)
+ return (I32) I32_MAX;
+ if (f <= I32_MIN)
+ return (I32) I32_MIN;
+ return (I32) f;
+}
+
+IV
+cast_iv(f)
+double f;
+{
+ if (f >= IV_MAX)
+ return (IV) IV_MAX;
+ if (f <= IV_MIN)
+ return (IV) IV_MIN;
+ return (IV) f;
+}
+
+UV
+cast_uv(f)
+double f;
+{
+ if (f >= MY_UV_MAX)
+ return (UV) MY_UV_MAX;
+ return (UV) f;
+}
+
+#endif
+
+#ifndef HAS_RENAME
+I32
+same_dirent(a,b)
+char *a;
+char *b;
+{
+ char *fa = strrchr(a,'/');
+ char *fb = strrchr(b,'/');
+ struct stat tmpstatbuf1;
+ struct stat tmpstatbuf2;
+ SV *tmpsv = sv_newmortal();
+
+ if (fa)
+ fa++;
+ else
+ fa = a;
+ if (fb)
+ fb++;
+ else
+ fb = b;
+ if (strNE(a,b))
+ return FALSE;
+ if (fa == a)
+ sv_setpv(tmpsv, ".");
+ else
+ sv_setpvn(tmpsv, a, fa - a);
+ if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0)
+ return FALSE;
+ if (fb == b)
+ sv_setpv(tmpsv, ".");
+ else
+ sv_setpvn(tmpsv, b, fb - b);
+ if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0)
+ return FALSE;
+ return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev &&
+ tmpstatbuf1.st_ino == tmpstatbuf2.st_ino;
+}
+#endif /* !HAS_RENAME */
+
+UV
+scan_oct(start, len, retlen)
+char *start;
+I32 len;
+I32 *retlen;
+{
+ register char *s = start;
+ register UV retval = 0;
+ bool overflowed = FALSE;
+
+ while (len && *s >= '0' && *s <= '7') {
+ register UV n = retval << 3;
+ if (!overflowed && (n >> 3) != retval) {
+ warn("Integer overflow in octal number");
+ overflowed = TRUE;
+ }
+ retval = n | (*s++ - '0');
+ len--;
+ }
+ if (dowarn && len && (*s == '8' || *s == '9'))
+ warn("Illegal octal digit ignored");
+ *retlen = s - start;
+ return retval;
+}
+
+UV
+scan_hex(start, len, retlen)
+char *start;
+I32 len;
+I32 *retlen;
+{
+ register char *s = start;
+ register UV retval = 0;
+ bool overflowed = FALSE;
+ char *tmp;
+
+ while (len-- && *s && (tmp = strchr(hexdigit, *s))) {
+ register UV n = retval << 4;
+ if (!overflowed && (n >> 4) != retval) {
+ warn("Integer overflow in hex number");
+ overflowed = TRUE;
+ }
+ retval = n | (tmp - hexdigit) & 15;
+ s++;
+ }
+ *retlen = s - start;
+ return retval;
+}
+
+
+#ifdef HUGE_VAL
+/*
+ * This hack is to force load of "huge" support from libm.a
+ * So it is in perl for (say) POSIX to use.
+ * Needed for SunOS with Sun's 'acc' for example.
+ */
+double
+Perl_huge()
+{
+ return HUGE_VAL;
+}
+#endif
projects / p5sagit/p5-mst-13.2.git / blobdiff