* [PATCH iproute2] ss: return -1 if an unrecognized option was given
@ 2015-10-15 19:01 Phil Sutter
2015-10-19 4:45 ` Stephen Hemminger
0 siblings, 1 reply; 2+ messages in thread
From: Phil Sutter @ 2015-10-15 19:01 UTC (permalink / raw)
To: Stephen Hemminger; +Cc: netdev
When getopt_long encounters an option which has not been registered, it
returns '?'. React upon that and call usage() instead of help() so ss
returns with a non-zero exit status.
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
misc/ss.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/misc/ss.c b/misc/ss.c
index eca4aa3..a9ae85e 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -3770,8 +3770,8 @@ int main(int argc, char *argv[])
exit(1);
break;
case 'h':
- case '?':
help();
+ case '?':
default:
usage();
}
--
2.5.0
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