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Add --version flag to print version #42

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Oct 19, 2024
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Add --version flag to print version #42

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16 changes: 13 additions & 3 deletions check_interfaces.c
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,7 @@ returncode_t print_output(struct configuration_struct *config, struct ifStruct *
long double starttime, struct ifStruct *interfaces, String *out, char **if_vars,
unsigned int number_of_matched_interfaces, struct timeval *tv, int uptime,
int ifNumber);
void print_version(void);

int main(int argc, char *argv[]) {
netsnmp_session session, *ss;
Expand Down Expand Up @@ -1270,9 +1271,7 @@ bool fetch_interface_names(struct configuration_struct* config, char **oid_names
return true;
}

enum {
PORT_OPTION = CHAR_MAX + 1
};
enum { PORT_OPTION = CHAR_MAX + 1, VERSION_OPTION = CHAR_MAX + 2 };

void parse_and_check_commandline(int argc, char **argv,
struct configuration_struct *config) {
Expand Down Expand Up @@ -1315,6 +1314,7 @@ void parse_and_check_commandline(int argc, char **argv,
{"sleep", required_argument, NULL, 3},
{"retries", required_argument, NULL, 4},
{"max-repetitions", required_argument, NULL, 5},
{"version", no_argument, NULL, VERSION_OPTION},
{NULL, 0, NULL, 0}};

while ((opt = getopt_long(argc, argv,
Expand Down Expand Up @@ -1415,6 +1415,8 @@ void parse_and_check_commandline(int argc, char **argv,
case 5:
config->pdu_max_repetitions = strtol(optarg, NULL, 10);
break;
case VERSION_OPTION:
print_version();
case '?':
default:
exit(usage(progname));
Expand Down Expand Up @@ -1478,6 +1480,13 @@ void parse_and_check_commandline(int argc, char **argv,
setenv("MIBS", "", 1);
}

void print_version(void) {
#ifdef PACKAGE_VERSION
puts(PACKAGE_VERSION);
#endif // PACKAGE_VERSION
exit(0);
}

int usage(char *progname) {
int i;
printf(
Expand Down Expand Up @@ -1532,6 +1541,7 @@ int usage(char *progname) {
printf(" --max-repetitions\t\tsee "
"<http://www.net-snmp.org/docs/man/snmpbulkwalk.html>\n");
printf(" --port\t\tPort (default 161)\n");
printf(" --version\t\tPrint program version\n");
printf("\n");
return 3;
}