pespin has submitted this change. (
https://gerrit.osmocom.org/c/osmo-uecups/+/27746 )
Change subject: Add optarg support
......................................................................
Add optarg support
Change-Id: I88c95c27d20f1da8dc2ce967197b58c876b42c59
---
M daemon/main.c
1 file changed, 96 insertions(+), 0 deletions(-)
Approvals:
Jenkins Builder: Verified
fixeria: Looks good to me, but someone else must approve
daniel: Looks good to me, approved
diff --git a/daemon/main.c b/daemon/main.c
index 014e28a..9f1885f 100644
--- a/daemon/main.c
+++ b/daemon/main.c
@@ -1,4 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
+#define _GNU_SOURCE
+#include <getopt.h>
#include <unistd.h>
#include <stdint.h>
#include <stdbool.h>
@@ -752,6 +754,98 @@
.num_cat = ARRAY_SIZE(log_categories),
};
+static void print_help()
+{
+ printf("Some useful options:\n");
+ printf(" -h --help is printing this text.\n");
+ printf(" -c --config-file filename The config file to use.\n");
+ printf(" -s --disable-color\n");
+ printf(" -D --daemonize Fork the process into a background daemon\n");
+ printf(" -V --version Print the version number\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'},
+ {"config-file", 1, 0, 'c'},
+ {"daemonize", 0, 0, 'D'},
+ {"version", 0, 0, 'V'},
+ {"disable-color", 0, 0, 's'},
+ {"vty-ref-mode", 1, &long_option, 1},
+ {"vty-ref-xml", 0, &long_option, 2},
+ {0, 0, 0, 0},
+ };
+
+ c = getopt_long(argc, argv, "hc:sVD", long_options,
&option_index);
+
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case 'h':
+ print_help();
+ exit(0);
+ break;
+ case 0:
+ handle_long_options(argv[0], long_option);
+ break;
+ case 'c':
+ g_config_file = talloc_strdup(g_tall_ctx, optarg);
+ break;
+ case 's':
+ log_set_use_color(osmo_stderr_target, 0);
+ break;
+ case 'V':
+ print_version(1);
+ exit(0);
+ break;
+ case 'D':
+ g_daemonize = 1;
+ break;
+ default:
+ /* ignore */
+ break;
+ };
+ }
+ if (argc > optind) {
+ fprintf(stderr, "Unsupported positional arguments on command
line\n");
+ exit(2);
+ }
+}
+
int main(int argc, char **argv)
{
int rc;
@@ -775,6 +869,8 @@
rate_ctr_init(g_tall_ctx);
gtpud_vty_init();
+ handle_options(argc, argv);
+
init_netns();
rc = vty_read_config_file(g_config_file, NULL);
--
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Gerrit-Project: osmo-uecups
Gerrit-Branch: master
Gerrit-Change-Id: I88c95c27d20f1da8dc2ce967197b58c876b42c59
Gerrit-Change-Number: 27746
Gerrit-PatchSet: 2
Gerrit-Owner: pespin <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <[email protected]>
Gerrit-Reviewer: fixeria <[email protected]>
Gerrit-Reviewer: osmith <[email protected]>
Gerrit-Reviewer: pespin <[email protected]>
Gerrit-MessageType: merged
