cifs.upcall: switch to getopt_long

...to allow long option names.

Signed-off-by: Jeff Layton <jlayton@redhat.com>

diff --git a/client/cifs.upcall.c b/client/cifs.upcall.c
index c89df9cf63cdaed14d1333bf1425a3b97fe20256..f06d563959b9806690cac7b76e631030a54313a6 100644 (file)
--- a/client/cifs.upcall.c
+++ b/client/cifs.upcall.c
@@ -27,6 +27,7 @@ create dns_resolver * * /usr/local/sbin/cifs.upcall %k
 
 #include "includes.h"
 #include <keyutils.h>
+#include <getopt.h>
 
 #include "cifs_spnego.h"
 
@@ -357,6 +358,11 @@ usage(void)
        fprintf(stderr, "Usage: %s [-v] key_serial\n", prog);
 }
 
+const struct option long_options[] = {
+       { "version",    0, NULL, 'v' },
+       { NULL,         0, NULL, 0 }
+};
+
 int main(const int argc, char *const argv[])
 {
        struct cifs_spnego_msg *keydata = NULL;
@@ -374,7 +380,7 @@ int main(const int argc, char *const argv[])
 
        openlog(prog, 0, LOG_DAEMON);
 
-       while ((c = getopt(argc, argv, "cv")) != -1) {
+       while ((c = getopt_long(argc, argv, "cv", long_options, NULL)) != -1) {
                switch (c) {
                case 'c':
                        /* legacy option -- skip it */