147 lines
5.1 KiB
C
147 lines
5.1 KiB
C
/****************************************************************************
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* examples/udpblaster/udpblaster_host.c
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "config.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include "udpblaster.h"
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/****************************************************************************
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* main
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****************************************************************************/
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int main(int argc, char **argv, char **envp)
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{
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#ifdef CONFIG_EXAMPLES_UDPBLASTER_IPv4
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struct sockaddr_in target;
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#else
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struct sockaddr_in6 target;
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#endif
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socklen_t addrlen;
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size_t sendsize;
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unsigned long delay;
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int npackets;
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int ndots;
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int sockfd;
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int ret;
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#ifdef CONFIG_EXAMPLES_UDPBLASTER_IPv4
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target.sin_family = AF_INET;
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target.sin_port = HTONS(UDPBLASTER_TARGET_PORTNO);
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target.sin_addr.s_addr = HTONL(CONFIG_EXAMPLES_UDPBLASTER_TARGETIP);
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addrlen = sizeof(struct sockaddr_in);
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sockfd = socket(PF_INET, SOCK_DGRAM, 0);
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if (sockfd < 0)
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{
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fprintf(stderr, "ERROR: socket() failed: %d\n", errno);
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return 1;
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}
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#else
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target.sin6_family = AF_INET6;
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target.sin6_port = HTONS(UDPBLASTER_TARGET_PORTNO);
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target.sin6_addr.s6_addr16[0] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_1);
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target.sin6_addr.s6_addr16[1] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_2);
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target.sin6_addr.s6_addr16[2] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_3);
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target.sin6_addr.s6_addr16[3] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_4);
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target.sin6_addr.s6_addr16[4] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_5);
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target.sin6_addr.s6_addr16[5] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_6);
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target.sin6_addr.s6_addr16[6] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_7);
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target.sin6_addr.s6_addr16[7] = HTONS(CONFIG_EXAMPLES_UDPBLASTER_TARGETIPv6_8);
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addrlen = sizeof(struct sockaddr_in6);
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sockfd = socket(PF_INET6, SOCK_DGRAM, 0);
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if (sockfd < 0)
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{
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fprintf(stderr, "ERROR: socket() failed: %d\n", errno);
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return 1;
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}
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#endif
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/* bytes/packet = UDPBLASTER_SENDSIZE
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* bits/sec = CONFIG_EXAMPLES_UDPBLASTER_HOSTRATE
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* bytes/sec = CONFIG_EXAMPLES_UDPBLASTER_HOSTRATE / 8
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* packets/sec = (bytes/sec) / (bytes/packet)
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* = CONFIG_EXAMPLES_UDPBLASTER_HOSTRATE / UDPBLASTER_SENDSIZE / 8
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* delay = microseconds/packet
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* = (1000000 * UDPBLASTER_SENDSIZE) / CONFIG_EXAMPLES_UDPBLASTER_HOSTRATE / 8
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* = (125000 * UDPBLASTER_SENDSIZE) / CONFIG_EXAMPLES_UDPBLASTER_HOSTRATE
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*/
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sendsize = UDPBLASTER_SENDSIZE;
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delay = (125000 * sendsize) / CONFIG_EXAMPLES_UDPBLASTER_HOSTRATE;
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npackets = 0;
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ndots = 0;
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for (;;)
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{
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ret = sendto(sockfd, g_udpblaster_text, sendsize, 0,
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(struct sockaddr *)&target, addrlen);
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if (ret < 0)
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{
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fprintf(stderr, "ERROR: sendto() failed: %d\n", errno);
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return 1;
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}
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if (++npackets >= 10)
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{
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putchar('.');
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npackets = 0;
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if (++ndots >= 50)
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{
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putchar('\n');
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ndots = 0;
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}
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}
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usleep(delay);
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}
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return 0; /* Won't get here */
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}
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