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/**********************************************************
* tcpip.c
*
* Copyright 2004, Stefan Siegl <stesie@brokenpipe.de>, Germany
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Publice License,
* version 2 or any later. The license is contained in the COPYING
* file that comes with the cvsfs distribution.
*
* speak tcp/ip protocol, aka connect to tcp/ip sockets
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include "tcpip.h"
/* tcpip_connect
*
* try to connect to the specified tcp/ip socket, wrap to stdio.h's FILE*
* structure and turn on line buffering
*/
FILE *
tcpip_connect(const char *hostname, int port)
{
int sockfd;
struct sockaddr_in addr;
struct in_addr inaddr;
struct hostent *host;
FILE *handle;
const char err_connect[] = PACKAGE ": unable to connect to cvs host";
if(inet_aton(hostname, &inaddr))
host = gethostbyaddr((char *) &inaddr, sizeof(inaddr), AF_INET);
else
host = gethostbyname(hostname);
if(! host)
{
herror(err_connect);
return NULL;
}
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
memcpy(&addr.sin_addr, host->h_addr_list[0], sizeof(addr.sin_addr));
if((sockfd = socket(PF_INET, SOCK_STREAM, 0)) < 0)
{
perror(err_connect);
return NULL;
}
if(connect(sockfd, (struct sockaddr *) &addr, sizeof(addr)))
{
perror(err_connect);
return NULL;
}
handle = fdopen(sockfd, "r+");
if(! handle)
{
perror(err_connect);
close(sockfd);
return NULL;
}
if(setvbuf(handle, NULL, _IOLBF, 0))
{
perror(err_connect);
fclose(handle);
return NULL;
}
return handle;
}
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