Found the same issue during testing of the autoconf script from
smartmontools with various shells. With posh, the script returned a few
bogus results.
The problem occurs when a quote string precedes the wildcard. The
wildcard is also interpreted as quoted then:
$ posh -c 'case "foo" in "fo"*) echo OK;; *) echo FAIL; esac'
FAIL
$ posh -c 'case "fo*" in "fo"*) echo OK;; *) echo FAIL; esac'
OK
$ posh -c 'case "foo" in *"oo") echo OK;; *) echo FAIL; esac'
OK
$ posh -c 'case "foo" in fo*) echo OK;; *) echo FAIL; esac'
OK
Examining the source, I found
case CQUOTE:
quote = st->quote; /* XXX correct? */
continue;
Actually this isn't correct, because st->quote may refer to
st_head.quote which is not initialized. The attached patch fixes the
issue for the above cases. It may be necessary to also init other fields
of std_head. There may also be a nesting problem with the 'st' chain.
Regards,
Christian
2014-07-07 Christian Franke <fra...@computer.org>
* eval.c (expand): Fix missing initialization of st_head.quote.
(Closes #636601 ?)
diff -rup posh-0.12.3.orig/eval.c posh-0.12.3/eval.c
--- posh-0.12.3.orig/eval.c 2012-11-01 15:33:25.000000000 +0100
+++ posh-0.12.3/eval.c 2014-07-07 21:16:41.012243600 +0200
@@ -201,6 +201,7 @@ expand(const char *cp, /* input word */
make_magic = 0;
word = (f&DOBLANK) ? IFS_WS : IFS_WORD;
st_head.next = NULL;
+ st_head.quote = 0;
st = &st_head;
while (1) {
