Running:
> $ zsh -fc ': ${${(PAA)p[foo]}::=x}'` in current zsh versions causes:
>
> [1] 4441 segmentation fault (core dumped) zsh -fc ': ${${(PAA)p[foo]}::=x}'
Also happens when testing with machabot:
> 19:42 <jp> > : ${${(PAA)p[foo]}::=x}
> 19:42 <machabot> jp: zsh[248]: segfault at 0 ip b7dfcda3 sp bfeb9ebc
> error 4 in libc-2.13.so[b7d84000+149000]
Add a simple `dupstring(s)` fallback.
Signed-off-by: Joey Pabalinas <joeypabalinas@xxxxxxxxx>
Requested-by: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Src/subst.c b/Src/subst.c
index d027e3d83cadc631a7..a265a187e8730868a9 100644
--- a/Src/subst.c
+++ b/Src/subst.c
@@ -2430,7 +2430,7 @@ paramsubst(LinkList l, LinkNode n, char **str, int qt, int pf_flags,
val = aval[0];
isarr = 0;
}
- s = dyncat(val, s);
+ s = val ? dyncat(val, s) : dupstring(s);
/* Now behave po-faced as if it was always like that... */
subexp = 0;
/*
--
2.16.0
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