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authorDenys Vlasenko <vda.linux@googlemail.com>2016-11-04 20:14:04 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2016-11-04 20:14:04 +0100
commitaeaee43d5a4fc95405cc2047227d096b1ada55b6 (patch)
tree3b98a3650e486dde735a4e24a367d3622a985e13 /shell
parent30bfcf612b0862e4dd98d923eabb308b54012d24 (diff)
downloadbusybox-aeaee43d5a4fc95405cc2047227d096b1ada55b6.tar.gz
hush: case logic for setting $? was still wrong
Resetting to 0 should happen in "esac". Matched branch must still see previous $?. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
-rw-r--r--shell/hush.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 4c2ed6cea..0bc67ecc9 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -7874,14 +7874,14 @@ static int run_list(struct pipe *pi)
#endif
#if ENABLE_HUSH_CASE
if (rword == RES_CASE) {
- /* Case which does not match and execute anything still sets $? to 0 */
- G.last_exitcode = rcode = EXIT_SUCCESS;
+ debug_printf_exec("CASE cond_code:%d\n", cond_code);
case_word = expand_strvec_to_string(pi->cmds->argv);
continue;
}
if (rword == RES_MATCH) {
char **argv;
+ debug_printf_exec("MATCH cond_code:%d\n", cond_code);
if (!case_word) /* "case ... matched_word) ... WORD)": we executed selected branch, stop */
break;
/* all prev words didn't match, does this one match? */
@@ -7892,8 +7892,8 @@ static int run_list(struct pipe *pi)
cond_code = (fnmatch(pattern, case_word, /*flags:*/ 0) != 0);
free(pattern);
if (cond_code == 0) { /* match! we will execute this branch */
- free(case_word); /* make future "word)" stop */
- case_word = NULL;
+ free(case_word);
+ case_word = NULL; /* make future "word)" stop */
break;
}
argv++;
@@ -7901,9 +7901,17 @@ static int run_list(struct pipe *pi)
continue;
}
if (rword == RES_CASE_BODY) { /* inside of a case branch */
+ debug_printf_exec("CASE_BODY cond_code:%d\n", cond_code);
if (cond_code != 0)
continue; /* not matched yet, skip this pipe */
}
+ if (rword == RES_ESAC) {
+ debug_printf_exec("ESAC cond_code:%d\n", cond_code);
+ if (case_word) {
+ /* "case" did not match anything: still set $? (to 0) */
+ G.last_exitcode = rcode = EXIT_SUCCESS;
+ }
+ }
#endif
/* Just pressing <enter> in shell should check for jobs.
* OTOH, in non-interactive shell this is useless