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-rw-r--r--programs/client.c297
1 files changed, 297 insertions, 0 deletions
diff --git a/programs/client.c b/programs/client.c
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+/*
+ * Copyright (C) 2011-2013 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: client remote_addr remote_port [local_port] [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>
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+#ifndef _WIN32
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#else
+#include <io.h>
+#endif
+#include <usrsctp.h>
+#include "programs_helper.h"
+
+int done = 0;
+
+#ifdef _WIN32
+typedef char* caddr_t;
+#endif
+
+
+
+static int
+receive_cb(struct socket *sock, union sctp_sockstore addr, void *data,
+ size_t datalen, struct sctp_rcvinfo rcv, int flags, void *ulp_info)
+{
+ if (data == NULL) {
+ done = 1;
+ usrsctp_close(sock);
+ } else {
+ if (flags & MSG_NOTIFICATION) {
+ handle_notification((union sctp_notification *)data, datalen);
+ } else {
+#ifdef _WIN32
+ _write(_fileno(stdout), data, (unsigned int)datalen);
+#else
+ if (write(fileno(stdout), data, datalen) < 0) {
+ perror("write");
+ }
+#endif
+ }
+ free(data);
+ }
+ return (1);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct socket *sock;
+ struct sockaddr *addr, *addrs;
+ struct sockaddr_in addr4;
+ struct sockaddr_in6 addr6;
+ struct sctp_udpencaps encaps;
+ struct sctpstat stat;
+ struct sctp_event event;
+ uint16_t event_types[] = {SCTP_ASSOC_CHANGE,
+ SCTP_PEER_ADDR_CHANGE,
+ SCTP_SEND_FAILED_EVENT};
+ char buffer[80];
+ unsigned int i;
+ int n;
+
+ if (argc < 3) {
+ printf("%s", "Usage: client remote_addr remote_port local_port local_encaps_port remote_encaps_port\n");
+ return (-1);
+ }
+ if (argc > 4) {
+ usrsctp_init(atoi(argv[4]), 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_INET6, SOCK_STREAM, IPPROTO_SCTP, receive_cb, NULL, 0, NULL)) == NULL) {
+ perror("usrsctp_socket");
+ }
+ memset(&event, 0, sizeof(event));
+ event.se_assoc_id = SCTP_ALL_ASSOC;
+ event.se_on = 1;
+ for (i = 0; i < sizeof(event_types)/sizeof(uint16_t); i++) {
+ event.se_type = event_types[i];
+ if (usrsctp_setsockopt(sock, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(event)) < 0) {
+ perror("setsockopt SCTP_EVENT");
+ }
+ }
+ if (argc > 3) {
+ memset((void *)&addr6, 0, sizeof(struct sockaddr_in6));
+#ifdef HAVE_SIN6_LEN
+ addr6.sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ addr6.sin6_family = AF_INET6;
+ addr6.sin6_port = htons(atoi(argv[3]));
+ addr6.sin6_addr = in6addr_any;
+ if (usrsctp_bind(sock, (struct sockaddr *)&addr6, sizeof(struct sockaddr_in6)) < 0) {
+ perror("bind");
+ }
+ }
+ if (argc > 5) {
+ memset(&encaps, 0, sizeof(struct sctp_udpencaps));
+ encaps.sue_address.ss_family = AF_INET6;
+ encaps.sue_port = htons(atoi(argv[5]));
+ 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 *)&addr4, 0, sizeof(struct sockaddr_in));
+ memset((void *)&addr6, 0, sizeof(struct sockaddr_in6));
+#ifdef HAVE_SIN_LEN
+ addr4.sin_len = sizeof(struct sockaddr_in);
+#endif
+#ifdef HAVE_SIN6_LEN
+ addr6.sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ addr4.sin_family = AF_INET;
+ addr6.sin6_family = AF_INET6;
+ addr4.sin_port = htons(atoi(argv[2]));
+ addr6.sin6_port = htons(atoi(argv[2]));
+ if (inet_pton(AF_INET6, argv[1], &addr6.sin6_addr) == 1) {
+ if (usrsctp_connect(sock, (struct sockaddr *)&addr6, sizeof(struct sockaddr_in6)) < 0) {
+ perror("usrsctp_connect");
+ }
+ } else if (inet_pton(AF_INET, argv[1], &addr4.sin_addr) == 1) {
+ if (usrsctp_connect(sock, (struct sockaddr *)&addr4, sizeof(struct sockaddr_in)) < 0) {
+ perror("usrsctp_connect");
+ }
+ } else {
+ printf("Illegal destination address.\n");
+ }
+ if ((n = usrsctp_getladdrs(sock, 0, &addrs)) < 0) {
+ perror("usrsctp_getladdrs");
+ } else {
+ addr = addrs;
+ printf("Local addresses: ");
+ for (i = 0; i < (unsigned int)n; i++) {
+ if (i > 0) {
+ printf("%s", ", ");
+ }
+ switch (addr->sa_family) {
+ case AF_INET:
+ {
+ struct sockaddr_in *sin;
+ char buf[INET_ADDRSTRLEN];
+ const char *name;
+
+ sin = (struct sockaddr_in *)addr;
+ name = inet_ntop(AF_INET, &sin->sin_addr, buf, INET_ADDRSTRLEN);
+ printf("%s", name);
+#ifndef HAVE_SA_LEN
+ addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
+#endif
+ break;
+ }
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *sin6;
+ char buf[INET6_ADDRSTRLEN];
+ const char *name;
+
+ sin6 = (struct sockaddr_in6 *)addr;
+ name = inet_ntop(AF_INET6, &sin6->sin6_addr, buf, INET6_ADDRSTRLEN);
+ printf("%s", name);
+#ifndef HAVE_SA_LEN
+ addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
+#endif
+ break;
+ }
+ default:
+ break;
+ }
+#ifdef HAVE_SA_LEN
+ addr = (struct sockaddr *)((caddr_t)addr + addr->sa_len);
+#endif
+ }
+ printf(".\n");
+ usrsctp_freeladdrs(addrs);
+ }
+ if ((n = usrsctp_getpaddrs(sock, 0, &addrs)) < 0) {
+ perror("usrsctp_getpaddrs");
+ } else {
+ addr = addrs;
+ printf("Peer addresses: ");
+ for (i = 0; i < (unsigned int)n; i++) {
+ if (i > 0) {
+ printf("%s", ", ");
+ }
+ switch (addr->sa_family) {
+ case AF_INET:
+ {
+ struct sockaddr_in *sin;
+ char buf[INET_ADDRSTRLEN];
+ const char *name;
+
+ sin = (struct sockaddr_in *)addr;
+ name = inet_ntop(AF_INET, &sin->sin_addr, buf, INET_ADDRSTRLEN);
+ printf("%s", name);
+#ifndef HAVE_SA_LEN
+ addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
+#endif
+ break;
+ }
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *sin6;
+ char buf[INET6_ADDRSTRLEN];
+ const char *name;
+
+ sin6 = (struct sockaddr_in6 *)addr;
+ name = inet_ntop(AF_INET6, &sin6->sin6_addr, buf, INET6_ADDRSTRLEN);
+ printf("%s", name);
+#ifndef HAVE_SA_LEN
+ addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
+#endif
+ break;
+ }
+ default:
+ break;
+ }
+#ifdef HAVE_SA_LEN
+ addr = (struct sockaddr *)((caddr_t)addr + addr->sa_len);
+#endif
+ }
+ printf(".\n");
+ usrsctp_freepaddrs(addrs);
+ }
+ while ((fgets(buffer, sizeof(buffer), stdin) != NULL) && !done) {
+ usrsctp_sendv(sock, buffer, strlen(buffer), NULL, 0, NULL, 0, SCTP_SENDV_NOINFO, 0);
+ }
+ if (!done) {
+ if (usrsctp_shutdown(sock, SHUT_WR) < 0) {
+ perror("usrsctp_shutdown");
+ }
+ }
+ while (!done) {
+#ifdef _WIN32
+ Sleep(1 * 1000);
+#else
+ sleep(1);
+#endif
+ }
+ usrsctp_get_stat(&stat);
+ printf("Number of packets (sent/received): (%u/%u).\n",
+ stat.sctps_outpackets, stat.sctps_inpackets);
+ while (usrsctp_finish() != 0) {
+#ifdef _WIN32
+ Sleep(1 * 1000);
+#else
+ sleep(1);
+#endif
+ }
+ return(0);
+}
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