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3a01367a9b
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221 lines
5.5 KiB
C
221 lines
5.5 KiB
C
/*
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* Copyright (c) 1993 Winning Strategies, Inc.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Winning Strategies, Inc.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <rpc/rpc.h>
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#include <rpcsvc/spray.h>
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#ifndef SPRAYOVERHEAD
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#define SPRAYOVERHEAD 86
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#endif
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static void usage(void);
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static void print_xferstats(unsigned int, int, double);
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/* spray buffer */
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static char spray_buffer[SPRAYMAX];
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/* RPC timeouts */
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static struct timeval NO_DEFAULT = { -1, -1 };
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static struct timeval ONE_WAY = { 0, 0 };
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static struct timeval TIMEOUT = { 25, 0 };
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int
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main(int argc, char *argv[])
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{
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spraycumul host_stats;
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sprayarr host_array;
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CLIENT *cl;
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int c;
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u_int i;
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u_int count = 0;
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int delay = 0;
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int length = 0;
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double xmit_time; /* time to receive data */
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while ((c = getopt(argc, argv, "c:d:l:")) != -1) {
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switch (c) {
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case 'c':
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count = atoi(optarg);
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break;
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case 'd':
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delay = atoi(optarg);
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break;
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case 'l':
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length = atoi(optarg);
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break;
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default:
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usage();
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/* NOTREACHED */
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 1) {
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usage();
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/* NOTREACHED */
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}
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/* Correct packet length. */
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if (length > SPRAYMAX) {
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length = SPRAYMAX;
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} else if (length < SPRAYOVERHEAD) {
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length = SPRAYOVERHEAD;
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} else {
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/* The RPC portion of the packet is a multiple of 32 bits. */
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length -= SPRAYOVERHEAD - 3;
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length &= ~3;
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length += SPRAYOVERHEAD;
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}
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/*
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* The default value of count is the number of packets required
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* to make the total stream size 100000 bytes.
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*/
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if (!count) {
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count = 100000 / length;
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}
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/* Initialize spray argument */
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host_array.sprayarr_len = length - SPRAYOVERHEAD;
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host_array.sprayarr_val = spray_buffer;
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/* create connection with server */
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cl = clnt_create(*argv, SPRAYPROG, SPRAYVERS, "udp");
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if (cl == NULL)
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errx(1, "%s", clnt_spcreateerror(""));
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/*
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* For some strange reason, RPC 4.0 sets the default timeout,
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* thus timeouts specified in clnt_call() are always ignored.
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*
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* The following (undocumented) hack resets the internal state
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* of the client handle.
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*/
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clnt_control(cl, CLSET_TIMEOUT, &NO_DEFAULT);
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/* Clear server statistics */
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if (clnt_call(cl, SPRAYPROC_CLEAR, (xdrproc_t)xdr_void, NULL,
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(xdrproc_t)xdr_void, NULL, TIMEOUT) != RPC_SUCCESS)
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errx(1, "%s", clnt_sperror(cl, ""));
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/* Spray server with packets */
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printf ("sending %u packets of lnth %d to %s ...", count, length,
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*argv);
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fflush (stdout);
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for (i = 0; i < count; i++) {
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clnt_call(cl, SPRAYPROC_SPRAY, (xdrproc_t)xdr_sprayarr,
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&host_array, (xdrproc_t)xdr_void, NULL, ONE_WAY);
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if (delay) {
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usleep(delay);
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}
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}
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/* Collect statistics from server */
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if (clnt_call(cl, SPRAYPROC_GET, (xdrproc_t)xdr_void, NULL,
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(xdrproc_t)xdr_spraycumul, &host_stats, TIMEOUT) != RPC_SUCCESS)
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errx(1, "%s", clnt_sperror(cl, ""));
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xmit_time = host_stats.clock.sec +
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(host_stats.clock.usec / 1000000.0);
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printf ("\n\tin %.2f seconds elapsed time\n", xmit_time);
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/* report dropped packets */
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if (host_stats.counter != count) {
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int packets_dropped = count - host_stats.counter;
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printf("\t%d packets (%.2f%%) dropped\n",
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packets_dropped,
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100.0 * packets_dropped / count );
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} else {
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printf("\tno packets dropped\n");
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}
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printf("Sent:");
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print_xferstats(count, length, xmit_time);
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printf("Rcvd:");
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print_xferstats(host_stats.counter, length, xmit_time);
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exit (0);
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}
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static void
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print_xferstats(u_int packets, int packetlen, double xfertime)
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{
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int datalen;
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double pps; /* packets per second */
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double bps; /* bytes per second */
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datalen = packets * packetlen;
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pps = packets / xfertime;
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bps = datalen / xfertime;
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printf("\t%.0f packets/sec, ", pps);
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if (bps >= 1024)
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printf ("%.1fK ", bps / 1024);
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else
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printf ("%.0f ", bps);
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printf("bytes/sec\n");
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}
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static void
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usage(void)
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{
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fprintf(stderr,
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"usage: spray [-c count] [-l length] [-d delay] host\n");
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exit(1);
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}
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