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Diffstat (limited to 'zebra/main.c')
-rw-r--r--zebra/main.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/zebra/main.c b/zebra/main.c
index dbe1b537..ed45bd13 100644
--- a/zebra/main.c
+++ b/zebra/main.c
@@ -76,6 +76,7 @@ struct option longopts[] =
{ "vty_addr", required_argument, NULL, 'A'},
{ "vty_port", required_argument, NULL, 'P'},
{ "retain", no_argument, NULL, 'r'},
+ { "dryrun", no_argument, NULL, 'C'},
#ifdef HAVE_NETLINK
{ "nl-bufsize", required_argument, NULL, 's'},
#endif /* HAVE_NETLINK */
@@ -131,6 +132,7 @@ usage (char *progname, int status)
"-k, --keep_kernel Don't delete old routes which installed by "\
"zebra.\n"\
"-l, --log_mode Set verbose log mode flag\n"\
+ "-C, --dryrun Check configuration for validity and exit\n"\
"-A, --vty_addr Set vty's bind address\n"\
"-P, --vty_port Set vty's port number\n"\
"-r, --retain When program terminates, retain added route "\
@@ -208,6 +210,7 @@ main (int argc, char **argv)
char *p;
char *vty_addr = NULL;
int vty_port = ZEBRA_VTY_PORT;
+ int dryrun = 0;
int batch_mode = 0;
int daemon_mode = 0;
char *config_file = NULL;
@@ -228,9 +231,9 @@ main (int argc, char **argv)
int opt;
#ifdef HAVE_NETLINK
- opt = getopt_long (argc, argv, "bdklf:i:hA:P:ru:g:vs:", longopts, 0);
+ opt = getopt_long (argc, argv, "bdklf:i:hA:P:ru:g:vs:C", longopts, 0);
#else
- opt = getopt_long (argc, argv, "bdklf:i:hA:P:ru:g:v", longopts, 0);
+ opt = getopt_long (argc, argv, "bdklf:i:hA:P:ru:g:vC", longopts, 0);
#endif /* HAVE_NETLINK */
if (opt == EOF)
@@ -248,6 +251,9 @@ main (int argc, char **argv)
case 'k':
keep_kernel_mode = 1;
break;
+ case 'C':
+ dryrun = 1;
+ break;
case 'l':
/* log_mode = 1; */
break;
@@ -345,6 +351,10 @@ main (int argc, char **argv)
/* Configuration file read*/
vty_read_config (config_file, config_default);
+ /* Don't start execution if we are in dry-run mode */
+ if (dryrun)
+ return(0);
+
/* Clean up rib. */
rib_weed_tables ();