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/*
* $Id$
*
* XMPP Module
* This file is part of Kamailio, a free SIP server.
*
* Copyright (C) 2006 Voice Sistem S.R.L.
*
* Kamailio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* Kamailio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author: Andreea Spirea
*
*/
/*! \file
* \brief Kamailio XMPP module
* \ingroup xmpp
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include "../../sr_module.h"
int net_listen(char *server, int port)
{
int fd;
struct sockaddr_in sin;
int on = 1;
memset(&sin, 0, sizeof(struct sockaddr_in));
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
if (!inet_aton(server, &sin.sin_addr)) {
struct hostent *host;
LM_DBG("resolving %s...\n", server);
if (!(host = gethostbyname(server))) {
LM_ERR("resolving %s failed (%s).\n", server,
hstrerror(h_errno));
return -1;
}
memcpy(&sin.sin_addr, host->h_addr_list[0], host->h_length);
}
if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
LM_ERR("socket() failed: %s\n", strerror(errno));
return -1;
}
LM_DBG("listening on %s:%d\n", inet_ntoa(sin.sin_addr), port);
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0) {
LM_WARN("setsockopt(SO_REUSEADDR) failed: %s\n",strerror(errno));
}
if (bind(fd, (struct sockaddr *) &sin, sizeof(struct sockaddr_in)) < 0) {
LM_ERR("bind() failed: %s\n", strerror(errno));
close(fd);
return -1;
}
if (listen(fd, 1) < 0) {
LM_ERR("listen() failed: %s\n", strerror(errno));
close(fd);
return -1;
}
return fd;
}
int net_connect(char *server, int port)
{
int fd;
struct sockaddr_in sin;
memset(&sin, 0, sizeof(struct sockaddr_in));
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
if (!inet_aton(server, &sin.sin_addr)) {
struct hostent *host;
LM_DBG("resolving %s...\n", server);
if (!(host = gethostbyname(server))) {
LM_ERR("resolving %s failed (%s).\n", server,
hstrerror(h_errno));
return -1;
}
memcpy(&sin.sin_addr, host->h_addr_list[0], host->h_length);
}
if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
LM_ERR("socket() failed: %s\n", strerror(errno));
return -1;
}
LM_DBG("connecting to %s:%d...\n", inet_ntoa(sin.sin_addr), port);
if (connect(fd, (struct sockaddr *) &sin, sizeof(struct sockaddr_in)) < 0) {
LM_ERR("connect() failed: %s\n", strerror(errno));
close(fd);
return -1;
}
LM_DBG("connected to %s:%d...\n", inet_ntoa(sin.sin_addr), port);
return fd;
}
int net_send(int fd, const char *buf, int len)
{
const char *p = buf;
int res;
do {
res = send(fd, p, len, 0);
if (res <= 0)
return res;
len -= res;
p += res;
} while (len);
return (p - buf);
}
int net_printf(int fd, char *format, ...)
{
va_list args;
char buf[4096];
va_start(args, format);
vsnprintf(buf, sizeof(buf) - 1, format, args);
va_end(args);
LM_DBG("net_printf: [%s]\n", buf);
return net_send(fd, buf, strlen(buf));
}
char *net_read_static(int fd)
{
static char buf[4096];
int res;
res = recv(fd, buf, sizeof(buf) - 1, 0);
if (res < 0) {
LM_ERR("recv() failed: %s\n", strerror(errno));
return NULL;
}
if (!res)
return NULL;
buf[res] = 0;
return buf;
}
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