| author | Markus Bröker <mbroeker@largo.dyndns.tv> |
| Sat, 13 Nov 2010 04:05:14 +0100 | |
| changeset 153 | b223089872b6 |
| parent 77 | 49e0babccb23 |
| child 154 | 142730cfecee |
| permissions | -rw-r--r-- |
| 0 | 1 |
/** |
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* dnsresolve.c |
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standard tags for git projects
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* Copyright (C) 2008 Markus Broeker |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <arpa/inet.h> |
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#include <netdb.h> |
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int main (int argc, char **argv) |
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{
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struct addrinfo hints; |
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struct addrinfo *result, *rp; |
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typo in min2time format string
Markus Bröker <mbroeker@largo.dyndns.tv>
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void *addr = NULL; |
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char ip[INET6_ADDRSTRLEN]; |
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if (argc != 2) {
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Lazy BNF / EBNF Help Messages
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fprintf (stderr, "Usage: %s <hostname>\n", argv[0]); |
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Policy Inonsistency on many files
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return EXIT_FAILURE; |
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} |
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memset (&hints, 0, sizeof (hints)); |
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hints.ai_family = AF_UNSPEC; |
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hints.ai_socktype = SOCK_STREAM; |
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if (getaddrinfo (argv[1], NULL, &hints, &result) != 0) {
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perror ("getaddrinfo");
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return EXIT_FAILURE; |
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} |
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for (rp = result; rp != NULL; rp = rp->ai_next) {
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if (rp->ai_family == AF_INET6) {
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struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)rp->ai_addr; |
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addr = &(ipv6->sin6_addr); |
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} else if (rp->ai_family == AF_INET) {
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struct sockaddr_in *ipv4 = (struct sockaddr_in *)rp->ai_addr; |
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addr = &(ipv4->sin_addr); |
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} |
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if (addr != NULL) {
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if (inet_ntop (rp->ai_family, addr, ip, sizeof (ip)) != NULL) |
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printf ("%s: %s\n", argv[1], ip);
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} |
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} |
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if (result != NULL) |
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freeaddrinfo (result); |
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We use return EXIT_SUCCESS instead of return 0
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return EXIT_SUCCESS; |
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} |