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/*
* Copyright (C) 2012-2013 Michael Tuexen
*
* 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 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 PROJECT 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 PROJECT 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.
*/
/*
* Usage: daytime_server_upcall [local_encaps_port] [remote_encaps_port]
*/
#ifdef _WIN32
#define _CRT_SECURE_NO_WARNINGS
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/types.h>
#include <time.h>
#ifndef _WIN32
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
#include <usrsctp.h>
#include "programs_helper.h"
#define DAYTIME_PPID 40
#define PORT 13
static void
handle_accept(struct socket *sock, void *data, int flags)
{
struct socket *conn_sock;
char buffer[80];
time_t now;
socklen_t addr_len = 0;
struct sctp_sndinfo sndinfo;
if (((conn_sock = usrsctp_accept(sock, NULL, &addr_len)) == NULL)
&& (errno != EINPROGRESS)) {
perror("usrsctp_accept");
return;
}
time(&now);
#ifdef _WIN32
if (_snprintf(buffer, sizeof(buffer), "%s", ctime(&now)) < 0) {
#else
if (snprintf(buffer, sizeof(buffer), "%s", ctime(&now)) < 0) {
#endif
buffer[0] = '\0';
}
sndinfo.snd_sid = 0;
sndinfo.snd_flags = 0;
sndinfo.snd_ppid = htonl(DAYTIME_PPID);
sndinfo.snd_context = 0;
sndinfo.snd_assoc_id = 0;
usrsctp_sendv(conn_sock, buffer, strlen(buffer), NULL, 0, (void *)&sndinfo,
(socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0);
usrsctp_close(conn_sock);
}
int
main(int argc, char *argv[])
{
struct socket *sock;
struct sockaddr_in addr;
struct sctp_udpencaps encaps;
if (argc > 1) {
usrsctp_init(atoi(argv[1]), NULL, debug_printf_stack);
} else {
usrsctp_init(9899, NULL, debug_printf_stack);
}
#ifdef SCTP_DEBUG
usrsctp_sysctl_set_sctp_debug_on(SCTP_DEBUG_NONE);
#endif
usrsctp_sysctl_set_sctp_blackhole(2);
usrsctp_sysctl_set_sctp_no_csum_on_loopback(0);
if ((sock = usrsctp_socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP, NULL, NULL, 0, NULL)) == NULL) {
perror("usrsctp_socket");
}
usrsctp_set_non_blocking(sock, 1);
if (argc > 2) {
memset(&encaps, 0, sizeof(struct sctp_udpencaps));
encaps.sue_address.ss_family = AF_INET;
encaps.sue_port = htons(atoi(argv[2]));
if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_REMOTE_UDP_ENCAPS_PORT, (const void*)&encaps, (socklen_t)sizeof(struct sctp_udpencaps)) < 0) {
perror("setsockopt");
}
}
memset((void *)&addr, 0, sizeof(struct sockaddr_in));
#ifdef HAVE_SIN_LEN
addr.sin_len = sizeof(struct sockaddr_in);
#endif
addr.sin_family = AF_INET;
addr.sin_port = htons(PORT);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (usrsctp_bind(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_in)) < 0) {
perror("usrsctp_bind");
}
if (usrsctp_listen(sock, 1) < 0) {
perror("usrsctp_listen");
}
usrsctp_set_upcall(sock, handle_accept, NULL);
while (1) {
#ifdef _WIN32
Sleep(1*1000);
#else
sleep(1);
#endif
}
usrsctp_close(sock);
while (usrsctp_finish() != 0) {
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
return (0);
}
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