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/*
* Guillaume Cottenceau (gc)
*
* Copyright 2000 Mandriva
*
* This software may be freely redistributed under the terms of the GNU
* public license.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* Portions from Erik Troan (ewt@redhat.com)
*
* Copyright 1996 Red Hat Software
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <netdb.h>
#include <sys/socket.h>
#include <resolv.h>
#include "network.h"
#include "log.h"
#include "dns.h"
int mygethostbyname(char * name, struct in_addr * addr)
{
struct addrinfo hints, *res, *p;
int status;
char ipstr[INET6_ADDRSTRLEN];
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_INET; //AF_UNSPEC for both IPv4 & IPv6
hints.ai_socktype = SOCK_STREAM;
/* prevent from timeouts */
if (_res.nscount == 0)
return -1;
if ((status = getaddrinfo(name, NULL, &hints, &res)) != 0) {
log_message("getaddrinfo: %s\n", gai_strerror(status));
return -1;
}
for (p = res;p != NULL; p = p->ai_next) {
void *tmp_addr;
struct sockaddr_in *ipv = (struct sockaddr_in *)p->ai_addr;
tmp_addr = &(ipv->sin_addr);
/* convert the IP to a string: */
inet_ntop(p->ai_family, addr, ipstr, sizeof ipstr);
memcpy(addr, tmp_addr, sizeof(*addr));
log_message("is-at: %s\n", inet_ntoa(*addr));
}
freeaddrinfo(res); // free the linked list
return 0;
}
char * mygethostbyaddr(char * ipnum)
{
struct sockaddr_in sa;
char hbuf[NI_MAXHOST];
/* prevent from timeouts */
if (_res.nscount == 0)
return NULL;
memset(&sa, 0, sizeof sa);
sa.sin_family = AF_INET;
if (inet_pton(AF_INET, ipnum, &sa.sin_addr) != 1)
return NULL;
if (getnameinfo((struct sockaddr*)&sa, sizeof(sa), hbuf, sizeof(hbuf), NULL, 0, 0 |NI_NAMEREQD) == 0) //NI_NUMERICHOST NI_NAMEREQD
return strdup(hbuf);
else return NULL;
}
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