64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
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* $smu-mark$
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* $name: resolve.c$
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* $author: Salvatore Sanfilippo <antirez@invece.org>$
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* $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$
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* $license: This software is under GPL version 2 of license$
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* $date: Fri Nov 5 11:55:49 MET 1999$
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* $rev: 8$
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*/
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#include <stdlib.h>
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#include <sys/types.h>
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#include <netdb.h>
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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 <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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void resolve (struct sockaddr * addr, char *hostname)
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{
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struct sockaddr_in *address;
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struct hostent *host;
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address = (struct sockaddr_in *)addr;
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memset(address, 0, sizeof(struct sockaddr_in));
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address->sin_family = AF_INET;
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address->sin_addr.s_addr = inet_addr(hostname);
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if ( (int)address->sin_addr.s_addr == -1) {
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host = gethostbyname(hostname);
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if (host) {
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memcpy(&address->sin_addr, host->h_addr,
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host->h_length);
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} else {
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perror("[resolve] Could not resolve address");
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exit(1);
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}
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}
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}
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void resolve6 (struct sockaddr * addr, char *hostname)
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{
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struct sockaddr_in6 *address;
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struct hostent *host;
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address = (struct sockaddr_in6 *)addr;
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memset(address, 0, sizeof(struct sockaddr_in6));
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address->sin6_family = AF_INET6;
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if(inet_pton(AF_INET6, hostname, &address->sin6_addr) < 1) {
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host = gethostbyname2(hostname, AF_INET6);
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if (host) {
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memcpy(&address->sin6_addr, host->h_addr,
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host->h_length);
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} else {
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herror("[resolve] Could not resolve address");
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exit(1);
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}
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}
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}
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