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-rw-r--r--plugins/check_udp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/plugins/check_udp.c b/plugins/check_udp.c
index 8626f8c4..4074d948 100644
--- a/plugins/check_udp.c
+++ b/plugins/check_udp.c
@@ -161,6 +161,9 @@ process_arguments (int argc, char **argv)
c = getopt (argc, argv, "+hVvH:e:s:c:w:t:p:");
#endif
+ if (c == -1 || c == EOF || c == 1)
+ break;
+
switch (c) {
case '?': /* print short usage statement if args not parsable */
printf ("%s: Unknown argument: %s\n\n", progname, optarg);
@@ -212,7 +215,7 @@ process_arguments (int argc, char **argv)
}
c = optind;
- if (server_address == NULL && argv[c]) {
+ if (server_address == NULL && c < argc && argv[c]) {
if (is_host (argv[c]) == FALSE)
usage ("Invalid host name/address\n");
server_address = argv[c++];