ash: fix segfault in ash.
patch by walter harms <wharms@bfs.de>
diff --git a/shell/ash.c b/shell/ash.c
index 1260d5e..a34c871 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -3042,6 +3042,7 @@
for (redir = n ; redir ; redir = redir->nfile.next) {
struct arglist fn;
+ memset(&fn, 0, sizeof(struct arglist));
fn.lastp = &fn.list;
switch (redir->type) {
case NFROMTO:
@@ -3056,7 +3057,10 @@
case NTOFD:
if (redir->ndup.vname) {
expandarg(redir->ndup.vname, &fn, EXP_FULL | EXP_TILDE);
- fixredir(redir, fn.list->text, 1);
+ if (fn.list != NULL)
+ fixredir(redir, fn.list->text, 1);
+ else
+ sh_error("redir error");
}
break;
}