diff options
Diffstat (limited to 'package/resolveip/src/resolveip.c')
-rw-r--r-- | package/resolveip/src/resolveip.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/package/resolveip/src/resolveip.c b/package/resolveip/src/resolveip.c deleted file mode 100644 index 310f35f..0000000 --- a/package/resolveip/src/resolveip.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Based on code found at https://dev.openwrt.org/ticket/4876 . - * Extended by Jo-Philipp Wich <jow@openwrt.org> for use in OpenWrt. - * - * You may use this program under the terms of the GPLv2 license. - */ - -#include <string.h> -#include <stdio.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <netdb.h> -#include <arpa/inet.h> -#include <netinet/in.h> -#include <stdlib.h> -#include <unistd.h> -#include <signal.h> - - -static void abort_query(int sig) -{ - exit(1); -} - -static void show_usage(void) -{ - printf("Usage:\n"); - printf(" resolveip -h\n"); - printf(" resolveip [-t timeout] hostname\n"); - printf(" resolveip -4 [-t timeout] hostname\n"); - printf(" resolveip -6 [-t timeout] hostname\n"); - exit(255); -} - -int main(int argc, char **argv) -{ - int timeout = 3; - char opt; - char ipaddr[INET6_ADDRSTRLEN]; - void *addr; - struct addrinfo *res, *rp; - struct sigaction sa = { .sa_handler = &abort_query }; - struct addrinfo hints = { - .ai_family = AF_UNSPEC, - .ai_socktype = SOCK_STREAM, - .ai_protocol = IPPROTO_TCP, - .ai_flags = 0 - }; - - while ((opt = getopt(argc, argv, "46t:h")) > -1) - { - switch (opt) - { - case '4': - hints.ai_family = AF_INET; - break; - - case '6': - hints.ai_family = AF_INET6; - break; - - case 't': - timeout = atoi(optarg); - if (timeout <= 0) - show_usage(); - break; - - case 'h': - show_usage(); - break; - } - } - - if (!argv[optind]) - show_usage(); - - sigaction(SIGALRM, &sa, NULL); - alarm(timeout); - - if (getaddrinfo(argv[optind], NULL, &hints, &res)) - exit(2); - - for (rp = res; rp != NULL; rp = rp->ai_next) - { - addr = (rp->ai_family == AF_INET) - ? (void *)&((struct sockaddr_in *)rp->ai_addr)->sin_addr - : (void *)&((struct sockaddr_in6 *)rp->ai_addr)->sin6_addr - ; - - if (!inet_ntop(rp->ai_family, addr, ipaddr, INET6_ADDRSTRLEN - 1)) - exit(3); - - printf("%s\n", ipaddr); - } - - freeaddrinfo(res); - exit(0); -} |