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/*
* Copyright (C) 2012 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*
* $Id: connecttcp.c,v 1.3.2.2 2012/07/22 08:04:24 darren_r Exp $
*/
#include "ipf.h"
#include <ctype.h>
/*
* Format expected is one address per line, at the start of each line.
*/
int
connecttcp(char *server, int port)
{
struct sockaddr_in sin;
struct hostent *host;
int fd;
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(port & 65535);
if (ISDIGIT(*server)) {
if (inet_aton(server, &sin.sin_addr) == -1) {
return (-1);
}
} else {
host = gethostbyname(server);
if (host == NULL)
return (-1);
memcpy(&sin.sin_addr, host->h_addr_list[0],
sizeof(sin.sin_addr));
}
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd == -1)
return (-1);
if (connect(fd, (struct sockaddr *)&sin, sizeof(sin)) == -1) {
close(fd);
return (-1);
}
return (fd);
}
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