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authorPablo Neira Ayuso <pablo@netfilter.org>2008-08-12 18:08:07 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2008-08-12 18:08:07 +0200
commitb18a146363f170afa420af04f80d2a91c38f11a3 (patch)
treea007bc8278006c22baf49155be2596baec698dd2 /src
parente50e3a5b0f426571d6feb16800b991779aab6d8e (diff)
cli: check for missing arguments in getopt_long
From: Pablo Neira Ayuso <pablo@netfilter.org> If getopt_long returns '?', show an error telling that some arguments are missing. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src')
-rw-r--r--src/conntrack.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/src/conntrack.c b/src/conntrack.c
index ab3da8a..c126557 100644
--- a/src/conntrack.c
+++ b/src/conntrack.c
@@ -934,6 +934,9 @@ int main(int argc, char *argv[])
register_icmp();
register_icmpv6();
+ /* disable explicit missing arguments error output from getopt_long */
+ opterr = 0;
+
while ((c = getopt_long(argc, argv, "L::I::U::D::G::E::F::hVs:d:r:q:"
"p:t:u:e:a:z[:]:{:}:m:i:f:o:n::"
"g::c:b:",
@@ -1076,18 +1079,21 @@ int main(int argc, char *argv[])
socketbuffersize = atol(optarg);
options |= CT_OPT_BUFFERSIZE;
break;
+ case '?':
+ if (optopt)
+ exit_error(PARAMETER_PROBLEM,
+ "option `%s' requires an "
+ "argument", argv[optind-1]);
+ else
+ exit_error(PARAMETER_PROBLEM,
+ "unknown option `%s'",
+ argv[optind-1]);
+ break;
default:
if (h && h->parse_opts
&&!h->parse_opts(c - h->option_offset, obj,
exptuple, mask, &l4flags))
exit_error(PARAMETER_PROBLEM, "parse error");
-
- /* Unknown argument... */
- if (!h) {
- usage(argv[0]);
- exit_error(PARAMETER_PROBLEM,
- "Missing arguments...");
- }
break;
}
}