X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=util.c;h=623c44cf8169f11d75415b8407f8a1d9ef20a382;hb=739c8b3a364622b7992851a224b3e6424e7e3b03;hp=35d54c350ae7c680346e2c9af90a868ea7525090;hpb=2035c5e8eb03b194190a7ef87630a0e4cc7c6251;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/util.c b/util.c
index 35d54c3..623c44c 100644
--- a/util.c
+++ b/util.c
@@ -752,7 +752,7 @@ Perl_fbm_instr(pTHX_ unsigned char *big, register unsigned char *bigend, SV *lit
 
 /* start_shift, end_shift are positive quantities which give offsets
    of ends of some substring of bigstr.
-   If `last' we want the last occurence.
+   If `last' we want the last occurrence.
    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.
@@ -1594,6 +1594,11 @@ Perl_vwarner(pTHX_ U32  err, const char* pat, va_list* args)
 void
 Perl_my_setenv(pTHX_ char *nam, char *val)
 {
+#ifdef USE_ITHREADS
+  /* only parent thread can modify process environment */
+  if (PL_curinterp == aTHX)
+#endif
+  {
 #ifndef PERL_USE_SAFE_PUTENV
     /* most putenv()s leak, so we manipulate environ directly */
     register I32 i=setenv_getix(nam);		/* where does it go? */
@@ -1652,6 +1657,7 @@ Perl_my_setenv(pTHX_ char *nam, char *val)
     (void)putenv(new_env);
 #   endif /* __CYGWIN__ */
 #endif  /* PERL_USE_SAFE_PUTENV */
+  }
 }
 
 #else /* WIN32 || NETWARE */
@@ -2090,6 +2096,7 @@ Perl_my_popen(pTHX_ char *cmd, char *mode)
     while ((pid = PerlProc_fork()) < 0) {
 	if (errno != EAGAIN) {
 	    PerlLIO_close(p[This]);
+	    PerlLIO_close(p[that]);
 	    if (did_pipes) {
 		PerlLIO_close(pp[0]);
 		PerlLIO_close(pp[1]);
@@ -2107,7 +2114,6 @@ Perl_my_popen(pTHX_ char *cmd, char *mode)
 #undef THAT
 #define THIS that
 #define THAT This
-	PerlLIO_close(p[THAT]);
 	if (did_pipes) {
 	    PerlLIO_close(pp[0]);
 #if defined(HAS_FCNTL) && defined(F_SETFD)
@@ -2117,7 +2123,11 @@ Perl_my_popen(pTHX_ char *cmd, char *mode)
 	if (p[THIS] != (*mode == 'r')) {
 	    PerlLIO_dup2(p[THIS], *mode == 'r');
 	    PerlLIO_close(p[THIS]);
+	    if (p[THAT] != (*mode == 'r'))	/* if dup2() didn't close it */
+		PerlLIO_close(p[THAT]);
 	}
+	else
+	    PerlLIO_close(p[THAT]);
 #ifndef OS2
 	if (doexec) {
 #if !defined(HAS_FCNTL) || !defined(F_SETFD)
@@ -2151,8 +2161,7 @@ Perl_my_popen(pTHX_ char *cmd, char *mode)
 #undef THIS
 #undef THAT
     }
-    do_execfree();	/* free any memory malloced by child on fork */
-    PerlLIO_close(p[that]);
+    do_execfree();	/* free any memory malloced by child on vfork */
     if (did_pipes)
 	PerlLIO_close(pp[1]);
     if (p[that] < p[This]) {
@@ -2160,6 +2169,9 @@ Perl_my_popen(pTHX_ char *cmd, char *mode)
 	PerlLIO_close(p[This]);
 	p[This] = p[that];
     }
+    else
+	PerlLIO_close(p[that]);
+
     LOCK_FDPID_MUTEX;
     sv = *av_fetch(PL_fdpid,p[This],TRUE);
     UNLOCK_FDPID_MUTEX;
@@ -3109,7 +3121,7 @@ Perl_new_struct_thread(pTHX_ struct perl_thread *t)
     SvCUR_set(sv, sizeof(struct perl_thread));
     thr = (Thread) SvPVX(sv);
 #ifdef DEBUGGING
-    memset(thr, 0xab, sizeof(struct perl_thread));
+    Poison(thr, 1, struct perl_thread);
     PL_markstack = 0;
     PL_scopestack = 0;
     PL_savestack = 0;
@@ -3379,6 +3391,7 @@ Perl_my_fflush_all(pTHX)
     return PerlIO_flush(NULL);
 #else
 # if defined(HAS__FWALK)
+    extern int fflush(FILE *);
     /* undocumented, unprototyped, but very useful BSDism */
     extern void _fwalk(int (*)(FILE *));
     _fwalk(&fflush);
@@ -3446,10 +3459,7 @@ Perl_report_evil_fh(pTHX_ GV *gv, IO *io, I32 op)
     }
 
     if (gv && isGV(gv)) {
-	SV *sv = sv_newmortal();
-	gv_efullname4(sv, gv, Nullch, FALSE);
-        if (SvOK(sv))
-            name = SvPVX(sv);
+	name = GvENAME(gv);
     }
 
     if (op == OP_phoney_OUTPUT_ONLY || op == OP_phoney_INPUT_ONLY) {
@@ -4210,7 +4220,7 @@ S_socketpair_udp (int fd[2]) {
 }
 #endif /*  EMULATE_SOCKETPAIR_UDP */
 
-#if !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET) && defined(AF_INET) && defined(PF_INET) 
+#if !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET) && defined(AF_INET) && defined(PF_INET)
 int
 Perl_my_socketpair (int family, int type, int protocol, int fd[2]) {
     /* Stevens says that family must be AF_LOCAL, protocol 0.