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Re: [nicolas.george@xxxxxx: Bug#187259: Zsh: segmentation fault with vared]

Clint Adams wrote:
> ----- Forwarded message from Nicolas George <nicolas.george@xxxxxx> -----
> Date: Wed, 2 Apr 2003 13:24:50 +0200
> From: Nicolas George <nicolas.george@xxxxxx>
> To: submit@xxxxxxxxxxxxxxx
> Subject: Bug#187259: Zsh: segmentation fault with vared
> Package: zsh
> Version: 4.0.6-30
> cigaes@ssecem ~ $ zsh
> cigaes@ssecem ~ $ l=(); vared l
> zsh: segmentation fault  zsh

I think this is the most consistent fix, but if anyone else thinks all
the undocumented calls to the undocumented sepjoin interface require a
non-zalloc'd value in the special case where the array is NULL I can
rethink.  (In case you are in any doubt this is expecting the answer

Index: Src/utils.c
RCS file: /cvsroot/zsh/zsh/Src/utils.c,v
retrieving revision 1.49
diff -u -r1.49 utils.c
--- Src/utils.c	2 May 2003 10:25:33 -0000	1.49
+++ Src/utils.c	12 May 2003 11:20:14 -0000
@@ -2050,7 +2050,7 @@
     char sepbuf[3];
     if (!*s)
-	return "";
+	return heap ? "" : ztrdup("");
     if (!sep) {
 	sep = sepbuf;
 	sepbuf[0] = *ifs;

Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070

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