2 * Copyright (c) 2011, Olivier MATZ <zer0@droids-corp.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the University of California, Berkeley nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 #include <netinet/in.h>
38 #include <arpa/inet.h>
42 #include <cmdline_rdline.h>
43 #include <cmdline_parse.h>
44 #include <cmdline_socket.h>
49 static struct sockaddr addr;
50 static uint16_t port = 1234;
52 extern cmdline_parse_ctx_t main_ctx[];
55 evt_server_input(int s, short event, void *arg)
57 struct cmdline *cl = arg;
58 struct event *evt = cl->opaque;
62 n = read(s, buf, sizeof(buf));
70 if (cmdline_in(cl, buf, n) < 0) {
79 evt_server_new_connection(int s, short event, void *arg)
84 /* create a new cmdline instance for this connection */
85 cl = cmdline_accept(main_ctx, "example> ", s);
87 /* allocate a new event for this incomming connection */
88 evt = malloc(sizeof(struct event));
95 event_set(evt, cl->s_in, EV_READ | EV_PERSIST, evt_server_input, cl);
100 usage(const char *prgname)
102 printf("%s [-a ADDRESS] [-p PORT]\n"
104 "Start a command line server on a TCP listen socket. This example\n"
105 "uses the libevent to support several simultaneous connections.\n"
106 "The default behaviour is to listen on 0.0.0.0:1234\n"
108 " -a ADDR: IPv4 or IPv6 local address to listen on (default\n"
110 " -p PORT: port to listen on (default is 1234).\n",
114 /* Parse the argument given in the command line of the application */
116 parse_args(int argc, char **argv)
121 char *prgname = argv[0];
123 static struct option lgopts[] = {
129 while ((opt = getopt_long(argc, argvopt, "a:p:",
130 lgopts, &option_index)) != EOF) {
135 if (strchr(optarg, '.') != NULL) {
136 struct sockaddr_in *sin =
137 (struct sockaddr_in *)&addr;
138 addr.sa_family = AF_INET;
139 ret = inet_pton(AF_INET, optarg,
143 struct sockaddr_in6 *sin6 =
144 (struct sockaddr_in6 *)&addr;
145 addr.sa_family = AF_INET6;
146 ret = inet_pton(AF_INET6, optarg,
151 printf("Bad address\n");
158 port = strtoul(optarg, &end, 0);
159 if ((optarg[0] == '\0') ||
162 printf("Invalid port\n");
171 /* if (!strcmp(lgopts[option_index].name, "option")) */
180 if (argc != optind) {
181 printf("Invalid argument\n");
191 int main(int argc, char **argv)
193 struct sockaddr_in *sin = (struct sockaddr_in *)&addr;
194 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&addr;
195 struct event listen_evt;
198 if (parse_args(argc, argv) < 0)
201 printf("Listening on port %d\n", port);
203 /* initializa libevent */
206 /* open a tcp server on specified port */
207 if (addr.sa_family == AF_INET)
208 s = cmdline_tcpv4_listen(sin->sin_addr.s_addr, port);
210 s = cmdline_tcpv6_listen(sin6->sin6_addr, port);
211 event_set(&listen_evt, s, EV_READ | EV_PERSIST,
212 evt_server_new_connection, NULL);
213 event_add(&listen_evt, NULL);
215 /* libevent main loop */