new md5sum for modified MD5.xs file

[p5sagit/p5-mst-13.2.git] / doio.c

diff --git a/doio.c b/doio.c
index dd840f6..448b9b3 100644 (file)
--- a/doio.c
+++ b/doio.c
@@ -143,7 +143,14 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
        if (num_svs != 0) {
             Perl_croak(aTHX_ "panic: sysopen with multiple args");
        }
-       if (rawmode & (O_WRONLY|O_RDWR|O_APPEND|O_CREAT|O_TRUNC))
+       if (rawmode & (O_WRONLY|O_RDWR|O_CREAT
+#ifdef O_APPEND        /* Not fully portable. */
+                      |O_APPEND
+#endif
+#ifdef O_TRUNC /* Not fully portable. */
+                      |O_TRUNC
+#endif
+                      ))
            TAINT_PROPER("sysopen");
        mode[ix++] = '#'; /* Marker to openn to use numeric "sysopen" */
 
@@ -225,7 +232,8 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
            len  = tend-type;
        }
        IoTYPE(io) = *type;
-       if ((*type == IoTYPE_RDWR) && ((!num_svs || tend > type+1 && tend[-1] != IoTYPE_PIPE))) { /* scary */
+       if ((*type == IoTYPE_RDWR) && /* scary */
+           ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) {
            mode[1] = *type++;
            writing = 1;
        }
@@ -1003,7 +1011,7 @@ Perl_do_eof(pTHX_ GV *gv)
 Off_t
 Perl_do_tell(pTHX_ GV *gv)
 {
-    register IO *io;
+    register IO *io = 0;
     register PerlIO *fp;
 
     if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
@@ -1022,7 +1030,7 @@ Perl_do_tell(pTHX_ GV *gv)
 bool
 Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence)
 {
-    register IO *io;
+    register IO *io = 0;
     register PerlIO *fp;
 
     if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) {
@@ -1041,7 +1049,7 @@ Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence)
 Off_t
 Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence)
 {
-    register IO *io;
+    register IO *io = 0;
     register PerlIO *fp;
 
     if (gv && (io = GvIO(gv)) && (fp = IoIFP(io)))
@@ -1324,7 +1332,7 @@ Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp,
     Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system");
 #else
     register char **a;
-    char *tmps;
+    char *tmps = Nullch;
     STRLEN n_a;
 
     if (sp > mark) {
@@ -1667,20 +1675,31 @@ nothing in the core.
            } utbuf;
 #endif
 
+           SV* accessed = *++mark;
+           SV* modified = *++mark;
+           void * utbufp = &utbuf;
+
+           /* be like C, and if both times are undefined, let the C
+              library figure out what to do.  This usually means
+              "current time" */
+
+           if ( accessed == &PL_sv_undef && modified == &PL_sv_undef )
+             utbufp = NULL;
+           
            Zero(&utbuf, sizeof utbuf, char);
 #ifdef BIG_TIME
-           utbuf.actime = (Time_t)SvNVx(*++mark);      /* time accessed */
-           utbuf.modtime = (Time_t)SvNVx(*++mark);     /* time modified */
+           utbuf.actime = (Time_t)SvNVx(accessed);     /* time accessed */
+           utbuf.modtime = (Time_t)SvNVx(modified);    /* time modified */
 #else
-           utbuf.actime = (Time_t)SvIVx(*++mark);      /* time accessed */
-           utbuf.modtime = (Time_t)SvIVx(*++mark);     /* time modified */
+           utbuf.actime = (Time_t)SvIVx(accessed);     /* time accessed */
+           utbuf.modtime = (Time_t)SvIVx(modified);    /* time modified */
 #endif
            APPLY_TAINT_PROPER();
            tot = sp - mark;
            while (++mark <= sp) {
                char *name = SvPVx(*mark, n_a);
                APPLY_TAINT_PROPER();
-               if (PerlLIO_utime(name, &utbuf))
+               if (PerlLIO_utime(name, utbufp))
                    tot--;
            }
        }