diff options
Diffstat (limited to 'programs/daytime_server.c')
| -rw-r--r-- | programs/daytime_server.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/programs/daytime_server.c b/programs/daytime_server.c new file mode 100644 index 00000000..cab27554 --- /dev/null +++ b/programs/daytime_server.c @@ -0,0 +1,140 @@ +/* + * 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 [local_encaps_port] [remote_encaps_port] + * + * Example + * Server: $ ./daytime_server 11111 22222 + * Client: $ ./client 127.0.0.1 13 0 22222 11111 + */ + +#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 PORT 13 +#define DAYTIME_PPID 40 +#define SLEEP 1 + +int +main(int argc, char *argv[]) +{ + struct socket *sock, *conn_sock; + struct sockaddr_in addr; + struct sctp_udpencaps encaps; + socklen_t addr_len; + char buffer[80]; + time_t now; + struct sctp_sndinfo sndinfo; + + 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"); + } + 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"); + } + while (1) { + addr_len = 0; + if ((conn_sock = usrsctp_accept(sock, NULL, &addr_len)) == NULL) { + continue; + } + 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; + if (usrsctp_sendv(conn_sock, buffer, strlen(buffer), NULL, 0, (void *)&sndinfo, + (socklen_t)sizeof(struct sctp_sndinfo), SCTP_SENDV_SNDINFO, 0) < 0) { + perror("usrsctp_sendv"); + } + usrsctp_close(conn_sock); + } + usrsctp_close(sock); + while (usrsctp_finish() != 0) { +#ifdef _WIN32 + Sleep(SLEEP * 1000); +#else + sleep(SLEEP); +#endif + } + return (0); +} |