mirror of
https://github.com/Mathewnd/Astral.git
synced 2026-10-27 20:58:22 +00:00
Matheus
39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
#define _GNU_SOURCE
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <ifaddrs.h>
|
|
#include <arpa/inet.h>
|
|
#include <net/if.h>
|
|
|
|
static void print_error(const char *msg, const int error) {
|
|
fprintf(stderr, "%s: %s: %s\n", program_invocation_short_name, msg, strerror(error));
|
|
}
|
|
|
|
int main(const int argc, const char *argv[]) {
|
|
struct ifaddrs *ifaddrs;
|
|
if (getifaddrs(&ifaddrs)) {
|
|
print_error("getifaddrs", errno);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
for (struct ifaddrs *ifaddr = ifaddrs; ifaddr; ifaddr = ifaddr->ifa_next) {
|
|
if (ifaddr->ifa_addr->sa_family != AF_INET)
|
|
continue;
|
|
|
|
printf("%s: flags: 0x%x%s%s%s\n",
|
|
ifaddr->ifa_name, ifaddr->ifa_flags,
|
|
ifaddr->ifa_flags & IFF_UP ? " UP" : "",
|
|
ifaddr->ifa_flags & IFF_LOOPBACK ? " LOOPBACK" : "",
|
|
ifaddr->ifa_flags & IFF_RUNNING ? " RUNNING" : "");
|
|
printf("%s: address: %s\n", ifaddr->ifa_name, ifaddr->ifa_addr ? inet_ntoa(((struct sockaddr_in *)ifaddr->ifa_addr)->sin_addr) : "?");
|
|
printf("%s: mask: %s\n", ifaddr->ifa_name, ifaddr->ifa_netmask ? inet_ntoa(((struct sockaddr_in *)ifaddr->ifa_netmask)->sin_addr) : "?");
|
|
printf("%s: broadcast: %s\n", ifaddr->ifa_name, ifaddr->ifa_broadaddr ? inet_ntoa(((struct sockaddr_in *)ifaddr->ifa_broadaddr)->sin_addr) : "?");
|
|
}
|
|
|
|
freeifaddrs(ifaddrs);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|