From 67a3c833af95b4a5da54b73ce8e3a027121d2305 Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@osmocom.org>
Date: Tue, 23 Feb 2021 17:07:03 +0100
Subject: [PATCH] main: add --vty-ref-mode, use vty_dump_xml_ref_mode()

Change-Id: I966715ab2a430497bbccf26c50aef72d0901997f
Depends: Ie2022a7f9e167e5ceacf15350c037dd43768ff40
Related: OS#5041
---
 ggsn/ggsn_main.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/ggsn/ggsn_main.c b/ggsn/ggsn_main.c
index d19b359..88c3f68 100644
--- a/ggsn/ggsn_main.c
+++ b/ggsn/ggsn_main.c
@@ -107,17 +107,49 @@ static void print_help()
 		"  -c --config-file	filename The config file to use\n"
 		"  -V --version		Print the version of OsmoGGSN\n"
 		);
+
+	printf("\nVTY reference generation:\n");
+	printf("     --vty-ref-mode MODE        VTY reference generation mode (e.g. 'expert').\n");
+	printf("     --vty-ref-xml              Generate the VTY reference XML output and exit.\n");
+}
+
+static void handle_long_options(const char *prog_name, const int long_option)
+{
+	static int vty_ref_mode = VTY_REF_GEN_MODE_DEFAULT;
+
+	switch (long_option) {
+	case 1:
+		vty_ref_mode = get_string_value(vty_ref_gen_mode_names, optarg);
+		if (vty_ref_mode < 0) {
+			fprintf(stderr, "%s: Unknown VTY reference generation "
+				"mode '%s'\n", prog_name, optarg);
+			exit(2);
+		}
+		break;
+	case 2:
+		fprintf(stderr, "Generating the VTY reference in mode '%s' (%s)\n",
+			get_value_string(vty_ref_gen_mode_names, vty_ref_mode),
+			get_value_string(vty_ref_gen_mode_desc, vty_ref_mode));
+		vty_dump_xml_ref_mode(stdout, (enum vty_ref_gen_mode) vty_ref_mode);
+		exit(0);
+	default:
+		fprintf(stderr, "%s: error parsing cmdline options\n", prog_name);
+		exit(2);
+	}
 }
 
 static void handle_options(int argc, char **argv)
 {
 	while (1) {
 		int option_index = 0, c;
+		static int long_option = 0;
 		static struct option long_options[] = {
 			{ "help", 0, 0, 'h' },
 			{ "daemonize", 0, 0, 'D' },
 			{ "config-file", 1, 0, 'c' },
 			{ "version", 0, 0, 'V' },
+			{ "vty-ref-mode", 1, &long_option, 1 },
+			{ "vty-ref-xml", 0, &long_option, 2 },
 			{ 0, 0, 0, 0 }
 		};
 
@@ -126,6 +158,9 @@ static void handle_options(int argc, char **argv)
 			break;
 
 		switch (c) {
+		case 0:
+			handle_long_options(argv[0], long_option);
+			break;
 		case 'h':
 			print_usage();
 			print_help();