Add option for config file path

1 files changed, 4 insertions, 1 deletions

diff --git a/src/isdn/main.c b/src/isdn/main.c
index e49a287..99f5505 100644
--- a/src/isdn/main.c
+++ b/src/isdn/main.c
@@ -65,6 +65,9 @@ static void print_help()
 	/*      -                                                                             - */
 	printf(" -h --help\n");
 	printf("        This help\n");
+	printf(" --config [~/]<path to config file>\n");
+	printf("        Give a config file to use. If it starts with '~/', path is at home dir.\n");
+	printf("        Each line in config file is one option, '-' or '--' must not be given!\n");
 	printf(" -v --verbose <level> | <level>,<category>[,<category>[,...]] | list\n");
 	printf("        Use 'list' to get a list of all levels and categories\n");
 	printf("        Verbose level: digit of debug level (default = '%d')\n", debuglevel);
@@ -308,7 +311,7 @@ int main(int argc, char *argv[])
 
         /* handle options / config file */
 	add_options();
-	rc = options_config_file("~/.osmocom/isdn/isdn.conf", handle_options);
+	rc = options_config_file(argc, argv, "~/.osmocom/isdn/isdn.conf", handle_options);
 	if (rc < 0)
 		return 0;
 	argi = options_command_line(argc, argv, handle_options);