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/*
* libEtPan! -- a mail stuff library
*
* Copyright (C) 2001, 2002 - DINH Viet Hoa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the libEtPan! project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* $Id$
*/
#include "connect.h"
#include <sys/types.h>
#include <string.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <unistd.h>
uint16_t mail_get_service_port(const char * name, char * protocol)
{
struct servent * service;
service = getservbyname(name, protocol);
if (service == NULL)
return 0;
return service->s_port;
}
int mail_tcp_connect(const char * server, uint16_t port)
{
struct hostent * remotehost;
struct sockaddr_in sa;
int s;
int r;
s = socket(PF_INET, SOCK_STREAM, 0);
if (s == -1)
goto err;
remotehost = gethostbyname(server);
if (remotehost == NULL)
goto close_socket;
sa.sin_family = AF_INET;
sa.sin_port = htons(port);
memcpy(&sa.sin_addr, remotehost->h_addr, remotehost->h_length);
r = connect(s, (struct sockaddr *) &sa, sizeof(struct sockaddr_in));
if (r == -1)
goto close_socket;
return s;
close_socket:
close(s);
err:
return -1;
}
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