[daemon startup] Add --dry-run/-C argument to daemons, to check config file syntax

2006-10-04 Oliver Hookins <ohookins@gmail.com>

	* bgpd/bgp_main.c: Add configuration check option, with
	'-C' rather than '-c' for consistency between daemons.
	* isisd/isis_main.c: ditto
	* ospf6d/ospf6_main.c: ditto
	* ospfd/ospf_main.c: ditto
	* ripngd/ripng_main.c: ditto
	* vtysh/vtysh_main.c: ditto
	* ripd/rip_main.c: Change the config check option to
	'-C' and tidy up the code.
	* zebra/main.c: ditto

2006-10-04 Stergiakis Alexandros <astergiakis@antcor.com>

	* ripd/rip_main.c: This trivial patch introduces a new
	  command-line option '-c', which instructs zebra/ripd
	  to check its configuration file for validity,	print
	  any error message, and then exit. This is useful when
	  the configuration file is edited by hand or otherwise,
	  and you simply want to validate it without any other
	  effect.
	* zebra/main.c: ditto

1 files changed, 11 insertions, 1 deletions

diff --git a/bgpd/bgp_main.c b/bgpd/bgp_main.c
index 0baae3bf..ecfe62ef 100644
--- a/bgpd/bgp_main.c
+++ b/bgpd/bgp_main.c
@@ -50,6 +50,7 @@ struct option longopts[] =
   { "user",        required_argument, NULL, 'u'},
   { "group",       required_argument, NULL, 'g'},
   { "version",     no_argument,       NULL, 'v'},
+  { "dryrun",      no_argument,       NULL, 'C'},
   { "help",        no_argument,       NULL, 'h'},
   { 0 }
 };
@@ -141,6 +142,7 @@ redistribution between different routing protocols.\n\n\
 -u, --user         User to run as\n\
 -g, --group        Group to run as\n\
 -v, --version      Print program version\n\
+-C, --dryrun       Check configuration for validity and exit\n\
 -h, --help         Display this help and exit\n\
 \n\
 Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS);
@@ -196,6 +198,7 @@ main (int argc, char **argv)
   char *p;
   int opt;
   int daemon_mode = 0;
+  int dryrun = 0;
   char *progname;
   struct thread thread;
 
@@ -214,7 +217,7 @@ main (int argc, char **argv)
   /* Command line argument treatment. */
   while (1) 
     {
-      opt = getopt_long (argc, argv, "df:i:hp:A:P:rnu:g:v", longopts, 0);
+      opt = getopt_long (argc, argv, "df:i:hp:A:P:rnu:g:vC", longopts, 0);
     
       if (opt == EOF)
 	break;
@@ -265,6 +268,9 @@ main (int argc, char **argv)
 	  print_version (progname);
 	  exit (0);
 	  break;
+	case 'C':
+	  dryrun = 1;
+	  break;
 	case 'h':
 	  usage (progname, 0);
 	  break;
@@ -294,6 +300,10 @@ main (int argc, char **argv)
   /* Parse config file. */
   vty_read_config (config_file, config_default);
 
+  /* Start execution only if not in dry-run mode */
+  if(dryrun)
+    return(0);
+  
   /* Turn into daemon if daemon_mode is set. */
   if (daemon_mode)
     daemon (0, 0);