-/* $RCSfile: util.c,v $$Revision: 4.1 $$Date: 92/08/07 18:29:00 $
+/* util.c
*
- * Copyright (c) 1991, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
* 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 4.1 92/08/07 18:29:00 lwall
- *
- * Revision 4.0.1.6 92/06/11 21:18:47 lwall
- * patch34: boneheaded typo in my_bcopy()
- *
- * Revision 4.0.1.5 92/06/08 16:08:37 lwall
- * patch20: removed implicit int declarations on functions
- * patch20: Perl now distinguishes overlapped copies from non-overlapped
- * patch20: fixed confusion between a *var's real name and its effective name
- * patch20: bcopy() and memcpy() now tested for overlap safety
- * patch20: added Atari ST portability
- *
- * Revision 4.0.1.4 91/11/11 16:48:54 lwall
- * patch19: study was busted by 4.018
- * patch19: added little-endian pack/unpack options
- *
- * Revision 4.0.1.3 91/11/05 19:18:26 lwall
- * patch11: safe malloc code now integrated into Perl's malloc when possible
- * patch11: strchr("little", "longer string") could visit faraway places
- * patch11: warn '-' x 10000 dumped core
- * patch11: forked exec on non-existent program now issues a warning
- *
- * Revision 4.0.1.2 91/06/07 12:10:42 lwall
- * patch4: new copyright notice
- * patch4: made some allowances for "semi-standard" C
- * patch4: strchr() could blow up searching for null string
- * patch4: taintchecks could improperly modify parent in vfork()
- * patch4: exec would close files even if you cleared close-on-exec flag
- *
- * Revision 4.0.1.1 91/04/12 09:19:25 lwall
- * patch1: random cleanup in cpp namespace
- *
- * Revision 4.0 91/03/20 01:56:39 lwall
- * 4.0 baseline.
- *
*/
-/*SUPPRESS 112*/
+
+/*
+ * "Very useful, no doubt, that was to Saruman; yet it seems that he was
+ * not content." --Gandalf
+ */
#include "EXTERN.h"
#include "perl.h"
#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
#ifdef I_FCNTL
# include <sys/file.h>
#endif
+#ifdef I_SYS_WAIT
+# include <sys/wait.h>
+#endif
+
#define FLUSH
-#ifndef safemalloc
+#ifdef LEAKTEST
+static void xstat _((void));
+#endif
+
+#ifdef USE_THREADS
+static U32 threadnum = 0;
+#endif /* USE_THREADS */
+
+#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 *
-safemalloc(size)
-#ifdef MSDOS
-unsigned long size;
-#else
-MEM_SIZE size;
-#endif /* MSDOS */
+Malloc_t
+safemalloc(MEM_SIZE size)
{
- char *ptr;
-#ifndef STANDARD_C
- char *malloc();
-#endif /* ! STANDARD_C */
-
-#ifdef MSDOS
+ Malloc_t ptr;
+#ifdef HAS_64K_LIMIT
if (size > 0xffff) {
- fprintf(stderr, "Allocation too large: %lx\n", size) FLUSH;
+ PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH;
my_exit(1);
}
-#endif /* MSDOS */
+#endif /* HAS_64K_LIMIT */
#ifdef DEBUGGING
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(fprintf(stderr,"0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
#else
- DEBUG_m(fprintf(stderr,"0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size));
+ 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(no_mem,stderr) FLUSH;
+ PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
/* paranoid version of realloc */
-char *
-saferealloc(where,size)
-char *where;
-#ifndef MSDOS
-MEM_SIZE size;
-#else
-unsigned long size;
-#endif /* MSDOS */
+Malloc_t
+saferealloc(Malloc_t where,MEM_SIZE size)
{
- char *ptr;
-#ifndef STANDARD_C
- char *realloc();
-#endif /* ! STANDARD_C */
-
-#ifdef MSDOS
- if (size > 0xffff) {
- fprintf(stderr, "Reallocation too large: %lx\n", size) FLUSH;
- my_exit(1);
- }
-#endif /* MSDOS */
+ 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)
croak("Null realloc");
#ifdef DEBUGGING
#if !(defined(I286) || defined(atarist))
DEBUG_m( {
- fprintf(stderr,"0x%x: (%05d) rfree\n",where,an++);
- fprintf(stderr,"0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
+ 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( {
- fprintf(stderr,"0x%lx: (%05d) rfree\n",where,an++);
- fprintf(stderr,"0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size);
+ 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
else if (nomemok)
return Nullch;
else {
- fputs(no_mem,stderr) FLUSH;
+ PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
/* safe version of free */
-void
-safefree(where)
-char *where;
+Free_t
+safefree(Malloc_t where)
{
#if !(defined(I286) || defined(atarist))
- DEBUG_m( fprintf(stderr,"0x%x: (%05d) free\n",where,an++));
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,an++));
#else
- DEBUG_m( fprintf(stderr,"0x%lx: (%05d) free\n",where,an++));
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,an++));
#endif
if (where) {
/*SUPPRESS 701*/
}
}
-#endif /* !safemalloc */
+/* safe version of calloc */
+
+Malloc_t
+safecalloc(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(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
+#else
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "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);
+ return Nullch;
+ }
+ /*NOTREACHED*/
+}
+
+#endif /* !MYMALLOC */
#ifdef LEAKTEST
#define ALIGN sizeof(long)
-char *
-safexmalloc(x,size)
-I32 x;
-MEM_SIZE size;
+Malloc_t
+safexmalloc(I32 x, MEM_SIZE size)
{
- register char *where;
+ register Malloc_t where;
where = safemalloc(size + ALIGN);
xcount[x]++;
return where + ALIGN;
}
-char *
-safexrealloc(where,size)
-char *where;
-MEM_SIZE size;
+Malloc_t
+safexrealloc(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;
+safexfree(Malloc_t where)
{
I32 x;
safefree(where);
}
+Malloc_t
+safexcalloc(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()
+xstat(void)
{
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]);
+ PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]);
lastxcount[i] = xcount[i];
}
}
/* copy a string up to some (non-backslashed) delimiter, if any */
char *
-cpytill(to,from,fromend,delim,retlen)
-register char *to;
-register char *from;
-register char *fromend;
-register I32 delim;
-I32 *retlen;
+delimcpy(register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen)
{
- char *origto = to;
-
- for (; from < fromend; from++,to++) {
+ register I32 tolen;
+ for (tolen = 0; from < fromend; from++, tolen++) {
if (*from == '\\') {
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;
}
/* This routine was donated by Corey Satten. */
char *
-instr(big, little)
-register char *big;
-register char *little;
+instr(register char *big, register char *little)
{
register char *s, *x;
register I32 first;
/* same as instr but allow embedded nulls */
char *
-ninstr(big, bigend, little, lend)
-register char *big;
-register char *bigend;
-char *little;
-char *lend;
+ninstr(register char *big, register char *bigend, char *little, char *lend)
{
register char *s, *x;
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;
/* reverse of the above--find last substring */
char *
-rninstr(big, bigend, little, lend)
-register char *big;
-char *bigend;
-char *little;
-char *lend;
+rninstr(register char *big, char *bigend, char *little, char *lend)
{
register char *bigbeg;
register char *s, *x;
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;
}
+/*
+ * Set up for a new ctype locale.
+ */
+void
+perl_new_ctype(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(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(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(void)
+{
+#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(void)
+{
+#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(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",
+ (int)(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(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(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
-fbm_compile(sv, iflag)
-SV *sv;
-I32 iflag;
+fbm_compile(SV *sv)
{
register unsigned char *s;
register unsigned char *table;
I32 rarest = 0;
U32 frequency = 256;
+ sv_upgrade(sv, SVt_PVBM);
+ if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */
+ return; /* can't have offsets that big */
Sv_Grow(sv,len+258);
table = (unsigned char*)(SvPVX(sv) + len + 1);
s = table - 2;
i = 0;
while (s >= (unsigned char*)(SvPVX(sv)))
{
- if (table[*s] == len) {
-#ifndef pdp11
- if (iflag)
- table[*s] = table[fold[*s]] = i;
-#else
- if (iflag) {
- I32 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++;
}
- sv_upgrade(sv, SVt_PVBM);
- sv_magic(sv, 0, 'B', 0, 0); /* deep magic */
+ sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
SvVALID_on(sv);
s = (unsigned char*)(SvPVX(sv)); /* deeper magic */
- if (iflag) {
- register U32 tmp, foldtmp;
- SvCASEFOLD_on(sv);
- 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]];
- }
+ for (i = 0; i < len; i++) {
+ if (freq[s[i]] < frequency) {
+ rarest = i;
+ frequency = freq[s[i]];
}
}
BmRARE(sv) = s[rarest];
BmPREVIOUS(sv) = rarest;
- DEBUG_r(fprintf(stderr,"rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv)));
}
char *
-fbm_instr(big, bigend, littlestr)
-unsigned char *big;
-register unsigned char *bigend;
-SV *littlestr;
+fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr)
{
register unsigned char *s;
register I32 tmp;
register unsigned char *oldlittle;
if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
- if (!SvPOK(littlestr) || !SvPVX(littlestr))
+ STRLEN len;
+ char *l = SvPV(littlestr,len);
+ if (!len) {
+ if (SvTAIL(littlestr)) {
+ if (bigend > big && bigend[-1] == '\n')
+ return (char *)(bigend - 1);
+ else
+ return (char *) bigend;
+ }
return (char*)big;
- return ninstr((char*)big,(char*)bigend,
- SvPVX(littlestr), SvPVX(littlestr) + SvCUR(littlestr));
+ }
+ return ninstr((char*)big,(char*)bigend, l, l + len);
}
littlelen = SvCUR(littlestr);
if (littlelen > bigend - big)
return Nullch;
little = (unsigned char*)SvPVX(littlestr);
- if (SvCASEFOLD(littlestr)) { /* 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 > big) {
- s--;
- if (*s == *little && bcmp(s,little,littlelen)==0)
- return (char*)s;
- }
- return Nullch;
+ 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*)(SvPVX(littlestr) + littlelen + 1);
if (--littlelen >= bigend - big)
return Nullch;
s = big + littlelen;
oldlittle = little = table - 2;
- if (SvCASEFOLD(littlestr)) { /* case insensitive? */
- if (s < bigend) {
- top1:
- /*SUPPRESS 560*/
- if (tmp = table[*s]) {
+ if (s < bigend) {
+ top2:
+ /*SUPPRESS 560*/
+ if (tmp = table[*s]) {
#ifdef POINTERRIGOR
- if (bigend - s > tmp) {
- s += tmp;
- goto top1;
- }
+ if (bigend - s > tmp) {
+ s += tmp;
+ goto top2;
+ }
#else
- if ((s += tmp) < bigend)
- goto top1;
+ if ((s += tmp) < bigend)
+ goto top2;
#endif
- return Nullch;
- }
- 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;
- }
- return (char *)s;
- }
+ return Nullch;
}
- }
- else {
- if (s < bigend) {
- top2:
- /*SUPPRESS 560*/
- if (tmp = table[*s]) {
-#ifdef POINTERRIGOR
- if (bigend - s > tmp) {
- s += tmp;
- goto top2;
- }
-#else
- if ((s += tmp) < bigend)
+ else {
+ tmp = littlelen; /* less expensive than calling strncmp() */
+ olds = s;
+ while (tmp--) {
+ if (*--s == *--little)
+ continue;
+ differ:
+ s = olds + 1; /* here we pay the price for failure */
+ little = oldlittle;
+ if (s < bigend) /* fake up continue to outer loop */
goto top2;
-#endif
return Nullch;
}
- 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;
- }
+ if (SvTAIL(littlestr) /* automatically multiline */
+ && olds + 1 != bigend
+ && olds[1] != '\n')
+ goto differ;
+ return (char *)s;
}
}
return Nullch;
}
+/* start_shift, end_shift are positive quantities which give offsets
+ of ends of some substring of bigstr.
+ If `last' we want the last occurence.
+ old_posp is the way of communication between consequent calls if
+ the next call needs to find the .
+ The initial *old_posp should be -1.
+ Note that we do not take into account SvTAIL, so it may give wrong
+ positives if _ALL flag is set.
+ */
+
char *
-screaminstr(bigstr, littlestr)
-SV *bigstr;
-SV *littlestr;
+screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last)
{
register unsigned char *s, *x;
register unsigned char *big;
register I32 previous;
register I32 first;
register unsigned char *little;
- register unsigned char *bigend;
+ register I32 stop_pos;
register unsigned char *littleend;
+ I32 found = 0;
- if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
+ if (*old_posp == -1
+ ? (pos = screamfirst[BmRARE(littlestr)]) < 0
+ : (((pos = *old_posp), pos += screamnext[pos]) == 0))
return Nullch;
little = (unsigned char *)(SvPVX(littlestr));
littleend = little + SvCUR(littlestr);
first = *little++;
+ /* The value of pos we can start at: */
previous = BmPREVIOUS(littlestr);
big = (unsigned char *)(SvPVX(bigstr));
- bigend = big + SvCUR(bigstr);
- while (pos < previous) {
+ /* The value of pos we can stop at: */
+ stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous);
+ if (previous + start_shift > stop_pos) return Nullch;
+ while (pos < previous + start_shift) {
if (!(pos += screamnext[pos]))
return Nullch;
}
#ifdef POINTERRIGOR
- if (SvCASEFOLD(littlestr)) { /* case insignificant? */
- do {
- if (big[pos-previous] != first && big[pos-previous] != fold[first])
- continue;
- for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
- if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) {
- s--;
- break;
- }
- }
- if (s == littleend)
- return (char *)(big+pos-previous);
- } while (
- pos += screamnext[pos] /* does this goof up anywhere? */
- );
- }
- else {
- do {
- if (big[pos-previous] != first)
- continue;
- for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
- if (*s++ != *x++) {
- s--;
- break;
- }
+ do {
+ if (pos >= stop_pos) return Nullch;
+ if (big[pos-previous] != first)
+ continue;
+ for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
+ if (*s++ != *x++) {
+ s--;
+ break;
}
- if (s == littleend)
- return (char *)(big+pos-previous);
- } while ( pos += screamnext[pos] );
- }
+ }
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos-previous);
+ found = 1;
+ }
+ } while ( pos += screamnext[pos] );
+ return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch;
#else /* !POINTERRIGOR */
big -= previous;
- if (SvCASEFOLD(littlestr)) { /* 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)
- return (char *)(big+pos);
- } while (
- pos += screamnext[pos] /* does this goof up anywhere? */
- );
- }
- 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;
- }
+ do {
+ if (pos >= stop_pos) return Nullch;
+ if (big[pos] != first)
+ continue;
+ for (x=big+pos+1,s=little; s < littleend; /**/ ) {
+ if (*s++ != *x++) {
+ s--;
+ break;
}
- if (s == littleend)
- return (char *)(big+pos);
- } while (
- pos += screamnext[pos]
- );
- }
+ }
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos);
+ found = 1;
+ }
+ } while ( pos += screamnext[pos] );
+ return (last && found) ? (char *)(big+(*old_posp)) : Nullch;
#endif /* POINTERRIGOR */
- return Nullch;
}
I32
-ibcmp(a,b,len)
-register char *a;
-register char *b;
-register I32 len;
+ibcmp(char *s1, char *s2, register I32 len)
{
+ register U8 *a = (U8 *)s1;
+ register U8 *b = (U8 *)s2;
while (len--) {
- if (*a == *b) {
- a++,b++;
- continue;
- }
- if (fold[*a++] == *b++)
- continue;
- return 1;
+ if (*a != *b && *a != fold[*b])
+ return 1;
+ a++,b++;
+ }
+ return 0;
+}
+
+I32
+ibcmp_locale(char *s1, char *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(sv)
-char *sv;
+savepv(char *sv)
{
register char *newaddr;
/* same thing but with a known length */
char *
-nsavestr(sv, len)
-char *sv;
-register I32 len;
+savepvn(char *sv, register I32 len)
{
register char *newaddr;
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
-pv_grow(strptr,curlen,newlen)
-char **strptr;
-I32 *curlen;
-I32 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(void)
+{
+ 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 I_VARARGS
-/*VARARGS1*/
+#ifdef I_STDARG
+char *
+form(const char* pat, ...)
+#else
+/*VARARGS0*/
char *
-mess(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+form(pat, va_alist)
+ const char *pat;
+ va_dcl
+#endif
{
- char *s;
- I32 usermess = strEQ(pat,"%s");
- SV *tmpstr;
-
- s = buf;
- if (usermess) {
- tmpstr = sv_mortalcopy(&sv_undef);
- sv_setpv(tmpstr, (char*)a1);
- *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1];
- }
- else {
- (void)sprintf(s,pat,a1,a2,a3,a4);
- s += strlen(s);
- }
-
- if (s[-1] != '\n') {
- if (curcop->cop_line) {
- (void)sprintf(s," at %s line %ld",
- SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line);
- s += strlen(s);
- }
- if (last_in_gv &&
- GvIO(last_in_gv) &&
- GvIO(last_in_gv)->lines ) {
- (void)sprintf(s,", <%s> %s %ld",
- last_in_gv == argvgv ? "" : GvENAME(last_in_gv),
- strEQ(rs,"\n") ? "line" : "chunk",
- (long)GvIO(last_in_gv)->lines);
- s += strlen(s);
- }
- (void)strcpy(s,".\n");
- if (usermess)
- sv_catpv(tmpstr,buf+1);
- }
- if (usermess)
- return SvPVX(tmpstr);
- else
- return buf;
+ 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*/
-void croak(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
+char *
+mess(const char *pat, va_list *args)
{
- char *tmps;
- char *message;
-
- message = mess(pat,a1,a2,a3,a4);
- fputs(message,stderr);
- (void)fflush(stderr);
- if (e_fp)
- (void)UNLINK(e_tmpname);
- statusvalue >>= 8;
- my_exit((I32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
+ 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') {
+ dTHR;
+ 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");
+ }
+ }
+ return SvPVX(sv);
}
-/*VARARGS1*/
-void warn(pat,a1,a2,a3,a4)
-char *pat;
-long a1, a2, a3, a4;
-{
- char *message;
-
- message = mess(pat,a1,a2,a3,a4);
- fputs(message,stderr);
-#ifdef LEAKTEST
- DEBUG_L(xstat());
-#endif
- (void)fflush(stderr);
-}
+#ifdef I_STDARG
+OP *
+die(const char* pat, ...)
#else
/*VARARGS0*/
-char *
-mess(args)
-va_list args;
+OP *
+die(pat, va_alist)
+ const char *pat;
+ va_dcl
+#endif
{
- char *pat;
- char *s;
- SV *tmpstr;
- I32 usermess;
-#ifndef HAS_VPRINTF
-#ifdef CHARVSPRINTF
- char *vsprintf();
+ dTHR;
+ va_list args;
+ char *message;
+ int was_in_eval = in_eval;
+ HV *stash;
+ GV *gv;
+ CV *cv;
+
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: curstack = %p, mainstack = %p\n",
+ thr, curstack, mainstack));
+#endif /* USE_THREADS */
+ /* 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);
+ }
+
+#ifdef I_STDARG
+ va_start(args, pat);
#else
- I32 vsprintf();
-#endif
+ va_start(args);
#endif
+ message = mess(pat, &args);
+ va_end(args);
- pat = va_arg(args, char *);
- s = buf;
- usermess = strEQ(pat, "%s");
- if (usermess) {
- tmpstr = sv_mortalcopy(&sv_undef);
- sv_setpv(tmpstr, va_arg(args, char *));
- *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1];
- }
- else {
- (void) vsprintf(s,pat,args);
- s += strlen(s);
- }
-
- if (s[-1] != '\n') {
- if (curcop->cop_line) {
- (void)sprintf(s," at %s line %ld",
- SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line);
- s += strlen(s);
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: message = %s\ndiehook = %p\n",
+ thr, message, diehook));
+#endif /* USE_THREADS */
+ 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;
}
- if (last_in_gv &&
- GvIO(last_in_gv) &&
- GvIO(last_in_gv)->lines ) {
- (void)sprintf(s,", <%s> %s %ld",
- last_in_gv == argvgv ? "" : GvNAME(last_in_gv),
- strEQ(rs,"\n") ? "line" : "chunk",
- (long)GvIO(last_in_gv)->lines);
- s += strlen(s);
- }
- (void)strcpy(s,".\n");
- if (usermess)
- sv_catpv(tmpstr,buf+1);
}
- if (usermess)
- return SvPVX(tmpstr);
- else
- return buf;
+ restartop = die_where(message);
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n",
+ thr, restartop, was_in_eval, top_env));
+#endif /* USE_THREADS */
+ if ((!restartop && was_in_eval) || top_env->je_prev)
+ JMPENV_JUMP(3);
+ return restartop;
}
-/*VARARGS0*/
+#ifdef I_STDARG
void
-#ifdef __STDC__
-croak(char* pat,...)
+croak(const char* pat, ...)
#else
-croak(va_alist)
-va_dcl
+/*VARARGS0*/
+void
+croak(pat, va_alist)
+ char *pat;
+ va_dcl
#endif
{
+ dTHR;
va_list args;
- char *tmps;
char *message;
+ HV *stash;
+ GV *gv;
+ CV *cv;
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
va_start(args);
- message = mess(args);
+#endif
+ message = mess(pat, &args);
va_end(args);
- if (restartop = die_where(message))
- longjmp(top_env, 3);
- fputs(message,stderr);
- (void)fflush(stderr);
- if (e_fp)
- (void)UNLINK(e_tmpname);
- statusvalue >>= 8;
- my_exit((I32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message));
+#endif /* USE_THREADS */
+ 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;
+ }
+ }
+ if (in_eval) {
+ restartop = die_where(message);
+ JMPENV_JUMP(3);
+ }
+ PerlIO_puts(PerlIO_stderr(),message);
+ (void)PerlIO_flush(PerlIO_stderr());
+ my_failure_exit();
}
-/*VARARGS0*/
-#ifdef __STDC__
-void warn(char* pat,...)
+void
+#ifdef I_STDARG
+warn(const char* pat,...)
#else
-void warn(va_alist)
-va_dcl
+/*VARARGS0*/
+warn(pat,va_alist)
+ const char *pat;
+ va_dcl
#endif
{
va_list args;
char *message;
+ HV *stash;
+ GV *gv;
+ CV *cv;
+#ifdef I_STDARG
+ va_start(args, pat);
+#else
va_start(args);
- message = mess(args);
+#endif
+ message = mess(pat, &args);
va_end(args);
- fputs(message,stderr);
+ if (warnhook) {
+ /* sv_2cv might call warn() */
+ dTHR;
+ 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
DEBUG_L(xstat());
#endif
- (void)fflush(stderr);
+ (void)PerlIO_flush(PerlIO_stderr());
}
-#endif
+#ifndef VMS /* VMS' my_setenv() is in VMS.c */
+#ifndef WIN32
void
-my_setenv(nam,val)
-char *nam, *val;
+my_setenv(char *nam, char *val)
{
register I32 i=setenv_getix(nam); /* where does it go? */
for (max = i; environ[max]; max++) ;
New(901,tmpenv, max+2, char*);
for (j=0; j<max; j++) /* copy environment */
- tmpenv[j] = savestr(environ[j]);
+ 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++;
#endif /* MSDOS */
}
+#else /* if WIN32 */
+
+void
+my_setenv(char *nam,char *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;
+setenv_getix(char *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;
}
#endif
-#if !defined(HAS_BCOPY) || !defined(SAFE_BCOPY)
+#if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
char *
-my_bcopy(from,to,len)
-register char *from;
-register char *to;
-register I32 len;
+my_bcopy(register char *from,register char *to,register I32 len)
{
char *retval = to;
}
#endif
+#ifndef HAS_MEMSET
+void *
+my_memset(loc,ch,len)
+register char *loc;
+register I32 ch;
+register I32 len;
+{
+ char *retval = loc;
+
+ while (len--)
+ *loc++ = ch;
+ return retval;
+}
+#endif
+
#if !defined(HAS_BZERO) && !defined(HAS_MEMSET)
char *
my_bzero(loc,len)
}
#endif
-#ifndef HAS_MEMCMP
+#if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP)
I32
my_memcmp(s1,s2,len)
-register unsigned char *s1;
-register unsigned char *s2;
+char *s1;
+char *s2;
register I32 len;
{
+ register U8 *a = (U8 *)s1;
+ register U8 *b = (U8 *)s2;
register I32 tmp;
while (len--) {
- if (tmp = *s1++ - *s2++)
+ if (tmp = *a++ - *b++)
return tmp;
}
return 0;
}
-#endif /* HAS_MEMCMP */
+#endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */
-#ifdef I_VARARGS
+#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._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
}
-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 /* HAS_VPRINTF */
-#endif /* I_VARARGS */
+#endif /* I_VARARGS || I_STDARGS */
-/*
- * I think my_swap(), htonl() and ntohl() have never been used.
- * perl.h contains last-chance references to my_swap(), my_htonl()
- * and my_ntohl(). I presume these are the intended functions;
- * but htonl() and ntohl() have the wrong names. There are no
- * functions my_htonl() and my_ntohl() defined anywhere.
- * -DWS
- */
#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;
}
long
-ntohl(l)
+#ifndef CAN_PROTOTYPE
+my_ntohl(l)
register long l;
+#else
+my_ntohl(long l)
+#endif
{
union {
long l;
VTOH(vtohl,long)
#endif
-#ifndef DOSISH
-FILE *
-my_popen(cmd,mode)
-char *cmd;
-char *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(char *cmd, char *mode)
{
int p[2];
- register I32 this, that;
+ 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 (tainting) {
- if (doexec) {
- taint_env();
- taint_proper("Insecure %s%s", "EXEC");
- }
+ 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]);
+ close(p[This]);
if (!doexec)
croak("Can't fork");
return Nullfp;
GV* tmpgv;
#define THIS that
-#define THAT this
+#define THAT This
close(p[THAT]);
if (p[THIS] != (*mode == 'r')) {
dup2(p[THIS], *mode == 'r');
close(p[THIS]);
}
if (doexec) {
-#if !defined(HAS_FCNTL) || !defined(FFt_SETFD)
+#if !defined(HAS_FCNTL) || !defined(F_SETFD)
int fd;
#ifndef NOFILE
close(fd);
#endif
do_exec(cmd); /* may or may not use the shell */
- warn("Can't exec \"%s\": %s", cmd, strerror(errno));
_exit(1);
}
/*SUPPRESS 560*/
- if (tmpgv = gv_fetchpv("$",TRUE))
- sv_setiv(GvSV(tmpgv),(I32)getpid());
+ if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
+ sv_setiv(GvSV(tmpgv), (IV)getpid());
forkprocess = 0;
hv_clear(pidstatus); /* we have no children */
return Nullfp;
}
do_execfree(); /* free any memory malloced by child on vfork */
close(p[that]);
- if (p[that] < p[this]) {
- dup2(p[this], p[that]);
- close(p[this]);
- p[this] = p[that];
+ if (p[that] < p[This]) {
+ dup2(p[This], p[that]);
+ close(p[This]);
+ p[This] = p[that];
}
- sv = *av_fetch(fdpid,p[this],TRUE);
- SvUPGRADE(sv,SVt_IV);
+ 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
-#ifdef atarist
+#if defined(atarist) || defined(DJGPP)
FILE *popen();
-FILE *
+PerlIO *
my_popen(cmd,mode)
char *cmd;
char *mode;
{
- return popen(cmd, mode);
+ /* Needs work for PerlIO ! */
+ /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */
+ return popen(PerlIO_exportFILE(cmd, 0), mode);
}
#endif
#endif /* !DOSISH */
-#ifdef NOTDEF
+#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 HAS_DUP2
+int
dup2(oldfd,newfd)
int oldfd;
int newfd;
{
-#if defined(HAS_FCNTL) && defined(FFt_DUPFD)
+#if defined(HAS_FCNTL) && defined(F_DUPFD)
+ if (oldfd == newfd)
+ return oldfd;
close(newfd);
- fcntl(oldfd, FFt_DUPFD, newfd);
+ return fcntl(oldfd, F_DUPFD, newfd);
#else
- int fdtmp[256];
+#define DUP2_MAX_FDS 256
+ int fdtmp[DUP2_MAX_FDS];
I32 fdx = 0;
int fd;
if (oldfd == newfd)
- return 0;
+ 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
-#ifndef DOSISH
-I32
-my_pclose(ptr)
-FILE *ptr;
+
+#ifdef HAS_SIGACTION
+
+Sighandler_t
+rsignal(int signo, Sighandler_t handler)
{
-#ifdef VOIDSIG
- void (*hstat)(), (*istat)(), (*qstat)();
-#else
- int (*hstat)(), (*istat)(), (*qstat)();
+ 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(int signo)
+{
+ struct sigaction oact;
+
+ if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1)
+ return SIG_ERR;
+ else
+ return oact.sa_handler;
+}
+
+int
+rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save)
+{
+ 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(int signo, Sigsave_t *save)
+{
+ return sigaction(signo, save, (struct sigaction *)NULL);
+}
+
+#else /* !HAS_SIGACTION */
+
+Sighandler_t
+rsignal(int signo, Sighandler_t handler)
+{
+ return signal(signo, handler);
+}
+
+static int sig_trapped;
+
+static
+Signal_t
+sig_trap(int signo)
+{
+ sig_trapped++;
+}
+
+Sighandler_t
+rsignal_state(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(int signo, Sighandler_t handler, Sigsave_t *save)
+{
+ *save = signal(signo, handler);
+ return (*save == SIG_ERR) ? -1 : 0;
+}
+
+int
+rsignal_restore(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(FILE *ptr)
+{
+ Sigsave_t hstat, istat, qstat;
int status;
- SV *sv;
+ SV **svp;
int pid;
+ bool close_failed;
+ int saved_errno;
+#ifdef VMS
+ int saved_vaxc_errno;
+#endif
- sv = *av_fetch(fdpid,fileno(ptr),TRUE);
- pid = SvIVX(sv);
- av_store(fdpid,fileno(ptr),Nullsv);
- fclose(ptr);
+ 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
- hstat = signal(SIGHUP, SIG_IGN);
- istat = signal(SIGINT, SIG_IGN);
- qstat = signal(SIGQUIT, SIG_IGN);
- pid = wait4pid(pid, &status, 0);
- signal(SIGHUP, hstat);
- signal(SIGINT, istat);
- signal(SIGQUIT, qstat);
- return(pid < 0 ? pid : status);
+ 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;
+wait4pid(int pid, int *statusp, int flags)
{
- I32 result;
SV *sv;
SV** svp;
- char spid[16];
+ char spid[TYPE_CHARS(int)];
if (!pid)
return -1;
svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE);
if (svp && *svp != &sv_undef) {
*statusp = SvIVX(*svp);
- hv_delete(pidstatus,spid,strlen(spid));
+ (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
return pid;
}
}
hv_iterinit(pidstatus);
if (entry = hv_iternext(pidstatus)) {
- pid = atoi(hv_iterkey(entry,statusp));
+ pid = atoi(hv_iterkey(entry,(I32*)statusp));
sv = hv_iterval(pidstatus,entry);
*statusp = SvIVX(sv);
sprintf(spid, "%d", pid);
- hv_delete(pidstatus,spid,strlen(spid));
+ (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD);
return pid;
}
}
-#ifdef HAS_WAIT4
- return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
-#else
#ifdef HAS_WAITPID
+# ifdef HAS_WAITPID_RUNTIME
+ if (!HAS_WAITPID_RUNTIME)
+ goto hard_way;
+# endif
return waitpid(pid,statusp,flags);
-#else
- 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
+#if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
+ return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+#endif
+#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
+ hard_way:
+ {
+ 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
}
#endif /* !DOSISH */
void
/*SUPPRESS 590*/
-pidgone(pid,status)
-int pid;
-int status;
+pidgone(int pid, int status)
{
register SV *sv;
- char spid[16];
+ char spid[TYPE_CHARS(int)];
sprintf(spid, "%d", pid);
sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE);
- SvUPGRADE(sv,SVt_IV);
+ (void)SvUPGRADE(sv,SVt_IV);
SvIVX(sv) = status;
return;
}
-#ifdef atarist
+#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)
-FILE *ptr;
+#endif
+PerlIO *ptr;
{
- return pclose(ptr);
+ /* Needs work for PerlIO ! */
+ FILE *f = PerlIO_findFILE(ptr);
+ I32 result = pclose(f);
+ PerlIO_releaseFILE(ptr,f);
+ return result;
}
#endif
void
-repeatcpy(to,from,len,count)
-register char *to;
-register char *from;
-I32 len;
-register I32 count;
+repeatcpy(register char *to, register char *from, I32 len, register I32 count)
{
register I32 todo;
register char *frombase = from;
#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;
{
-# define BIGDOUBLE 2147483648.0 /* Assume 32 bit int's ! */
-# define BIGNEGDOUBLE (-2147483648.0)
- if (f >= BIGDOUBLE)
- return (I32)fmod(f, BIGDOUBLE);
- if (f <= BIGNEGDOUBLE)
- return (I32)fmod(f, BIGNEGDOUBLE);
+ if (f >= I32_MAX)
+ return (I32) I32_MAX;
+ if (f <= I32_MIN)
+ return (I32) I32_MIN;
return (I32) f;
}
-# undef BIGDOUBLE
-# undef BIGNEGDOUBLE
+
+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
char *fb = strrchr(b,'/');
struct stat tmpstatbuf1;
struct stat tmpstatbuf2;
-#ifndef MAXPATHLEN
-#define MAXPATHLEN 1024
-#endif
- char tmpbuf[MAXPATHLEN+1];
+ SV *tmpsv = sv_newmortal();
if (fa)
fa++;
if (strNE(a,b))
return FALSE;
if (fa == a)
- strcpy(tmpbuf,".");
+ sv_setpv(tmpsv, ".");
else
- strncpy(tmpbuf, a, fa - a);
- if (stat(tmpbuf, &tmpstatbuf1) < 0)
+ sv_setpvn(tmpsv, a, fa - a);
+ if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0)
return FALSE;
if (fb == b)
- strcpy(tmpbuf,".");
+ sv_setpv(tmpsv, ".");
else
- strncpy(tmpbuf, b, fb - b);
- if (stat(tmpbuf, &tmpstatbuf2) < 0)
+ 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 */
-unsigned long
-scan_oct(start, len, retlen)
-char *start;
-I32 len;
-I32 *retlen;
+UV
+scan_oct(char *start, I32 len, I32 *retlen)
{
register char *s = start;
- register unsigned long retval = 0;
-
- while (len-- && *s >= '0' && *s <= '7') {
- retval <<= 3;
- retval |= *s++ - '0';
+ 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;
}
-unsigned long
-scan_hex(start, len, retlen)
-char *start;
-I32 len;
-I32 *retlen;
+UV
+scan_hex(char *start, I32 len, I32 *retlen)
{
register char *s = start;
- register unsigned long retval = 0;
+ register UV retval = 0;
+ bool overflowed = FALSE;
char *tmp;
- while (len-- && *s && (tmp = strchr(hexdigit, *s))) {
- retval <<= 4;
- retval |= (tmp - hexdigit) & 15;
+ while (len-- && *s && (tmp = strchr((char *) 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 USE_THREADS
+#ifdef FAKE_THREADS
+/* Very simplistic scheduler for now */
+void
+schedule(void)
+{
+ thr = thr->i.next_run;
+}
+
+void
+perl_cond_init(cp)
+perl_cond *cp;
+{
+ *cp = 0;
+}
+
+void
+perl_cond_signal(cp)
+perl_cond *cp;
+{
+ perl_thread t;
+ perl_cond cond = *cp;
+
+ if (!cond)
+ return;
+ t = cond->thread;
+ /* Insert t in the runnable queue just ahead of us */
+ t->i.next_run = thr->i.next_run;
+ thr->i.next_run->i.prev_run = t;
+ t->i.prev_run = thr;
+ thr->i.next_run = t;
+ thr->i.wait_queue = 0;
+ /* Remove from the wait queue */
+ *cp = cond->next;
+ Safefree(cond);
+}
+
+void
+perl_cond_broadcast(cp)
+perl_cond *cp;
+{
+ perl_thread t;
+ perl_cond cond, cond_next;
+
+ for (cond = *cp; cond; cond = cond_next) {
+ t = cond->thread;
+ /* Insert t in the runnable queue just ahead of us */
+ t->i.next_run = thr->i.next_run;
+ thr->i.next_run->i.prev_run = t;
+ t->i.prev_run = thr;
+ thr->i.next_run = t;
+ thr->i.wait_queue = 0;
+ /* Remove from the wait queue */
+ cond_next = cond->next;
+ Safefree(cond);
+ }
+ *cp = 0;
+}
+
+void
+perl_cond_wait(cp)
+perl_cond *cp;
+{
+ perl_cond cond;
+
+ if (thr->i.next_run == thr)
+ croak("panic: perl_cond_wait called by last runnable thread");
+
+ New(666, cond, 1, struct perl_wait_queue);
+ cond->thread = thr;
+ cond->next = *cp;
+ *cp = cond;
+ thr->i.wait_queue = cond;
+ /* Remove ourselves from runnable queue */
+ thr->i.next_run->i.prev_run = thr->i.prev_run;
+ thr->i.prev_run->i.next_run = thr->i.next_run;
+}
+#endif /* FAKE_THREADS */
+
+#ifdef OLD_PTHREADS_API
+struct thread *
+getTHR _((void))
+{
+ pthread_addr_t t;
+
+ if (pthread_getspecific(thr_key, &t))
+ croak("panic: pthread_getspecific");
+ return (struct thread *) t;
+}
+#endif /* OLD_PTHREADS_API */
+
+MAGIC *
+condpair_magic(SV *sv)
+{
+ MAGIC *mg;
+
+ SvUPGRADE(sv, SVt_PVMG);
+ mg = mg_find(sv, 'm');
+ if (!mg) {
+ condpair_t *cp;
+
+ New(53, cp, 1, condpair_t);
+ MUTEX_INIT(&cp->mutex);
+ COND_INIT(&cp->owner_cond);
+ COND_INIT(&cp->cond);
+ cp->owner = 0;
+ MUTEX_LOCK(&sv_mutex);
+ mg = mg_find(sv, 'm');
+ if (mg) {
+ /* someone else beat us to initialising it */
+ MUTEX_UNLOCK(&sv_mutex);
+ MUTEX_DESTROY(&cp->mutex);
+ COND_DESTROY(&cp->owner_cond);
+ COND_DESTROY(&cp->cond);
+ Safefree(cp);
+ }
+ else {
+ sv_magic(sv, Nullsv, 'm', 0, 0);
+ mg = SvMAGIC(sv);
+ mg->mg_ptr = (char *)cp;
+ mg->mg_len = sizeof(cp);
+ MUTEX_UNLOCK(&sv_mutex);
+ DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(),
+ "%p: condpair_magic %p\n", thr, sv));)
+ }
+ }
+ return mg;
+}
+
+/*
+ * Make a new perl thread structure using t as a prototype. Some of the
+ * fields for the new thread are copied from the prototype thread, t,
+ * so t should not be running in perl at the time this function is
+ * called. The use by ext/Thread/Thread.xs in core perl (where t is the
+ * thread calling new_struct_thread) clearly satisfies this constraint.
+ */
+struct thread *
+new_struct_thread(struct thread *t)
+{
+ struct thread *thr;
+ SV *sv;
+ SV **svp;
+ I32 i;
+
+ sv = newSVpv("", 0);
+ SvGROW(sv, sizeof(struct thread) + 1);
+ SvCUR_set(sv, sizeof(struct thread));
+ thr = (Thread) SvPVX(sv);
+ /* debug */
+ memset(thr, 0xab, sizeof(struct thread));
+ markstack = 0;
+ scopestack = 0;
+ savestack = 0;
+ retstack = 0;
+ dirty = 0;
+ localizing = 0;
+ /* end debug */
+
+ thr->oursv = sv;
+ init_stacks(ARGS);
+
+ curcop = &compiling;
+ thr->cvcache = newHV();
+ thr->threadsv = newAV();
+ thr->specific = newAV();
+ thr->errsv = newSVpv("", 0);
+ thr->errhv = newHV();
+ thr->flags = THRf_R_JOINABLE;
+ MUTEX_INIT(&thr->mutex);
+
+ curcop = t->Tcurcop; /* XXX As good a guess as any? */
+ defstash = t->Tdefstash; /* XXX maybe these should */
+ curstash = t->Tcurstash; /* always be set to main? */
+
+
+ /* top_env needs to be non-zero. It points to an area
+ in which longjmp() stuff is stored, as C callstack
+ info there at least is thread specific this has to
+ be per-thread. Otherwise a 'die' in a thread gives
+ that thread the C stack of last thread to do an eval {}!
+ See comments in scope.h
+ Initialize top entry (as in perl.c for main thread)
+ */
+ start_env.je_prev = NULL;
+ start_env.je_ret = -1;
+ start_env.je_mustcatch = TRUE;
+ top_env = &start_env;
+
+ in_eval = FALSE;
+ restartop = 0;
+
+ tainted = t->Ttainted;
+ curpm = t->Tcurpm; /* XXX No PMOP ref count */
+ nrs = newSVsv(t->Tnrs);
+ rs = newSVsv(t->Trs);
+ last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv);
+ ofslen = t->Tofslen;
+ ofs = savepvn(t->Tofs, ofslen);
+ defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv);
+ chopset = t->Tchopset;
+ formtarget = newSVsv(t->Tformtarget);
+ bodytarget = newSVsv(t->Tbodytarget);
+ toptarget = newSVsv(t->Ttoptarget);
+
+ /* Initialise all per-thread SVs that the template thread used */
+ svp = AvARRAY(t->threadsv);
+ for (i = 0; i <= AvFILL(t->threadsv); i++, svp++) {
+ if (*svp && *svp != &sv_undef) {
+ SV *sv = newSVsv(*svp);
+ av_store(thr->threadsv, i, sv);
+ sv_magic(sv, 0, 0, &threadsv_names[i], 1);
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr));
+ }
+ }
+
+ MUTEX_LOCK(&threads_mutex);
+ nthreads++;
+ thr->tid = ++threadnum;
+ thr->next = t->next;
+ thr->prev = t;
+ t->next = thr;
+ thr->next->prev = thr;
+ MUTEX_UNLOCK(&threads_mutex);
+
+#ifdef HAVE_THREAD_INTERN
+ init_thread_intern(thr);
+#endif /* HAVE_THREAD_INTERN */
+ return thr;
+}
+#endif /* USE_THREADS */
+
+#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(void)
+{
+ return HUGE_VAL;
+}
+#endif
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff