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hnbgw: add cmdline arg parsing with default options 

Default options taken from osmo-nitb:

    -h --help                  This text.
    -d option --debug=DHNBAP:DSUA:DRUA:DRANAP:DMAIN  Enable debugging.
    -D --daemonize             Fork the process into a background daemon.
    -s --disable-color
    -T --timestamp             Prefix every log line with a timestamp.
    -V --version               Print the version of OsmoHNBGW.
    -e --log-level number      Set a global loglevel.

Change-Id: I931cee01c605c1b507c16041ada226cf963ea433
This commit is contained in:
Neels Hofmeyr 2016-08-17 13:53:18 +02:00
parent 4c45d2b9fd
commit 4d675a7df9
1 changed files with 81 additions and 3 deletions
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84
src/hnbgw.c
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@ -326,8 +326,6 @@ static struct vty_app_info vty_info = {
.version = "0",
};
static int daemonize = 0;
static void vty_dump_hnb_info(struct vty *vty, struct hnb_context *hnb)
{
struct hnbgw_context_map *map;
@ -388,6 +386,83 @@ static void hnbgw_vty_init(void)
logging_vty_add_cmds(&hnbgw_log_info);
}
static struct {
int daemonize;
} hnbgw_cmdline_config = {
0
};
static void print_usage()
{
printf("Usage: osmo-hnbgw\n");
}
static void print_help()
{
printf(" -h --help This text.\n");
printf(" -d option --debug=DHNBAP:DSUA:DRUA:DRANAP:DMAIN Enable debugging.\n");
printf(" -D --daemonize Fork the process into a background daemon.\n");
printf(" -s --disable-color\n");
printf(" -T --timestamp Prefix every log line with a timestamp.\n");
printf(" -V --version Print the version of OsmoHNBGW.\n");
printf(" -e --log-level number Set a global loglevel.\n");
}
static void handle_options(int argc, char **argv)
{
while (1) {
int option_index = 0, c;
static struct option long_options[] = {
{"help", 0, 0, 'h'},
{"debug", 1, 0, 'd'},
{"daemonize", 0, 0, 'D'},
{"disable-color", 0, 0, 's'},
{"timestamp", 0, 0, 'T'},
{"version", 0, 0, 'V' },
{"log-level", 1, 0, 'e'},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hd:DsTVe:",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'h':
print_usage();
print_help();
exit(0);
case 's':
log_set_use_color(osmo_stderr_target, 0);
break;
case 'd':
log_parse_category_mask(osmo_stderr_target, optarg);
break;
case 'D':
hnbgw_cmdline_config.daemonize = 1;
break;
case 'T':
log_set_print_timestamp(osmo_stderr_target, 1);
break;
case 'e':
log_set_log_level(osmo_stderr_target, atoi(optarg));
break;
case 'V':
print_version(1);
exit(0);
break;
default:
/* catch unknown options *as well as* missing arguments. */
fprintf(stderr, "Error in command line options. Exiting.\n");
exit(-1);
break;
}
}
}
int main(int argc, char **argv)
{
struct osmo_sccp_user *sua_user;
@ -410,6 +485,9 @@ int main(int argc, char **argv)
hnbgw_vty_init();
/* Handle options after vty_init(), for --version */
handle_options(argc, argv);
/* NOTE: if we add a config file, read the config before
* fetching the telnet address with vty_get_bind_addr() */
LOGP(DMAIN, LOGL_NOTICE, "VTY at %s %d\n",
@ -443,7 +521,7 @@ int main(int argc, char **argv)
}
g_hnb_gw->iuh = srv;
if (daemonize) {
if (hnbgw_cmdline_config.daemonize) {
rc = osmo_daemonize();
if (rc < 0) {
perror("Error during daemonize");