87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
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/*-
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* Copyright (c) 2015 George V. Neville-Neil
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#define PORT 6969 /* Default port */
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#define RECV_LIMIT 64 /* When do we move listen to 0? */
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void usage(void);
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void usage()
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{
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err(EX_USAGE, "connect [-p port]\n");
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}
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int main(int argc, char **argv)
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{
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int ch, cli_sock, count = 0;
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int port = PORT;
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struct sockaddr_in remoteaddr;
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while ((ch = getopt(argc, argv, "p:")) != -1) {
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switch (ch) {
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case 'p':
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port = atoi(optarg);
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break;
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case 'h':
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default:
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usage();
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}
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}
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bzero(&remoteaddr, sizeof(remoteaddr));
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remoteaddr.sin_len = sizeof(remoteaddr);
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remoteaddr.sin_family = AF_INET;
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remoteaddr.sin_port = htons(port);
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remoteaddr.sin_addr.s_addr = INADDR_ANY;
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cli_sock = socket(AF_INET, SOCK_STREAM, 0);
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while ((cli_sock = connect(cli_sock, (struct sockaddr *)&remoteaddr,
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sizeof(remoteaddr))) >= 0) {
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count++;
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close(cli_sock);
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cli_sock = socket(AF_INET, SOCK_STREAM, 0);
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}
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printf("Exiting at %d with errno %d\n", count, errno);
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}
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