From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Wed,  4 Feb 2009 20:15:54 -0800
Message-ID: <dd6fe68a0902042015k395267cs2970d14face611dc@mail.gmail.com>
Subject: Re: [9fans] sed crash
From: Russ Cox <rsc@swtch.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Sed is fixed in plan9port.

$ hg diff sed.c
diff -r 478b53880a80 src/cmd/sed.c
--- a/src/cmd/sed.c	Wed Feb 04 20:12:48 2009 -0800
+++ b/src/cmd/sed.c	Wed Feb 04 20:13:08 2009 -0800
@@ -994,7 +994,7 @@
 		return 0;
 	subexp[0].s.rsp = buf;
 	subexp[0].e.rep = 0;
-	if (rregexec(pattern, linebuf, subexp, MAXSUB)) {
+	if (rregexec(pattern, linebuf, subexp, MAXSUB) > 0) {
 		loc1 = subexp[0].s.rsp;
 		loc2 = subexp[0].e.rep;
 		return 1;
$

http://hg.pdos.csail.mit.edu/hg/plan9/rev/0bf86c524c9b