fb212f2
Index: perlio.c
fb212f2
===================================================================
fb212f2
--- perlio.c	(revision 4342)
fb212f2
+++ perlio.c	(revision 4346)
fb212f2
@@ -454,7 +454,7 @@
fb212f2
     va_list ap;
fb212f2
     dSYS;
fb212f2
     va_start(ap, fmt);
fb212f2
-    if (!dbg) {
fb212f2
+    if (!dbg && !PL_tainting && PL_uid == PL_euid && PL_gid == PL_egid) {
fb212f2
 	char *s = PerlEnv_getenv("PERLIO_DEBUG");
fb212f2
 	if (s && *s)
fb212f2
 	    dbg = PerlLIO_open3(s, O_WRONLY | O_CREAT | O_APPEND, 0666);
fb212f2
@@ -471,7 +471,7 @@
fb212f2
 	s = CopFILE(PL_curcop);
fb212f2
 	if (!s)
fb212f2
 	    s = "(none)";
fb212f2
-	sprintf(buffer, "%s:%" IVdf " ", s, (IV) CopLINE(PL_curcop));
fb212f2
+	sprintf(buffer, "%.40s:%" IVdf " ", s, (IV) CopLINE(PL_curcop));
fb212f2
 	len = strlen(buffer);
fb212f2
 	vsprintf(buffer+len, fmt, ap);
fb212f2
 	PerlLIO_write(dbg, buffer, strlen(buffer));