Double check that we have a dirhandle.

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

diff --git a/mg.c b/mg.c
index aee2790..884e0fa 100644 (file)
--- a/mg.c
+++ b/mg.c
@@ -614,7 +614,7 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
            {
                i = t1 - s1;
                s = rx->subbeg + s1;
-                if (!rx->subbeg)
+               if (!rx->subbeg)
                    break;
 
              getrx:
@@ -1999,6 +1999,30 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
        break;
 #ifndef MACOS_TRADITIONAL
     case '0':
+#ifdef HAS_SETPROCTITLE
+       /* The BSDs don't show the argv[] in ps(1) output, they
+        * show a string from the process struct and provide
+        * the setproctitle() routine to manipulate that. */
+       {
+           s = SvPV(sv, len);
+#   if __FreeBSD_version >= 410001
+           /* The leading "-" removes the "perl: " prefix,
+            * but not the "(perl) suffix from the ps(1)
+            * output, because that's what ps(1) shows if the
+            * argv[] is modified. */
+           setproctitle("-%s", s, len + 1);
+#   else       /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */
+           /* This doesn't really work if you assume that
+            * $0 = 'foobar'; will wipe out 'perl' from the $0
+            * because in ps(1) output the result will be like
+            * sprintf("perl: %s (perl)", s)
+            * I guess this is a security feature:
+            * one (a user process) cannot get rid of the original name.
+            * --jhi */
+           setproctitle("%s", s);
+#   endif
+       }
+#endif
        if (!PL_origalen) {
            s = PL_origargv[0];
            s += strlen(s);