diff options
Diffstat (limited to 'usr.sbin/spray/spray.c')
| -rw-r--r-- | usr.sbin/spray/spray.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/usr.sbin/spray/spray.c b/usr.sbin/spray/spray.c new file mode 100644 index 0000000..69691d1 --- /dev/null +++ b/usr.sbin/spray/spray.c @@ -0,0 +1,220 @@ +/* + * Copyright (c) 1993 Winning Strategies, Inc. + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Winning Strategies, Inc. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +#ifndef lint +static const char rcsid[] = + "$FreeBSD$"; +#endif /* not lint */ + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <rpc/rpc.h> +#include <rpcsvc/spray.h> + +#ifndef SPRAYOVERHEAD +#define SPRAYOVERHEAD 86 +#endif + +static void usage(void); +static void print_xferstats(unsigned int, int, double); + +/* spray buffer */ +static char spray_buffer[SPRAYMAX]; + +/* RPC timeouts */ +static struct timeval NO_DEFAULT = { -1, -1 }; +static struct timeval ONE_WAY = { 0, 0 }; +static struct timeval TIMEOUT = { 25, 0 }; + +int +main(int argc, char *argv[]) +{ + spraycumul host_stats; + sprayarr host_array; + CLIENT *cl; + int c; + u_int i; + u_int count = 0; + int delay = 0; + int length = 0; + double xmit_time; /* time to receive data */ + + while ((c = getopt(argc, argv, "c:d:l:")) != -1) { + switch (c) { + case 'c': + count = atoi(optarg); + break; + case 'd': + delay = atoi(optarg); + break; + case 'l': + length = atoi(optarg); + break; + default: + usage(); + /* NOTREACHED */ + } + } + argc -= optind; + argv += optind; + + if (argc != 1) { + usage(); + /* NOTREACHED */ + } + + + /* Correct packet length. */ + if (length > SPRAYMAX) { + length = SPRAYMAX; + } else if (length < SPRAYOVERHEAD) { + length = SPRAYOVERHEAD; + } else { + /* The RPC portion of the packet is a multiple of 32 bits. */ + length -= SPRAYOVERHEAD - 3; + length &= ~3; + length += SPRAYOVERHEAD; + } + + + /* + * The default value of count is the number of packets required + * to make the total stream size 100000 bytes. + */ + if (!count) { + count = 100000 / length; + } + + /* Initialize spray argument */ + host_array.sprayarr_len = length - SPRAYOVERHEAD; + host_array.sprayarr_val = spray_buffer; + + + /* create connection with server */ + cl = clnt_create(*argv, SPRAYPROG, SPRAYVERS, "udp"); + if (cl == NULL) + errx(1, "%s", clnt_spcreateerror("")); + + + /* + * For some strange reason, RPC 4.0 sets the default timeout, + * thus timeouts specified in clnt_call() are always ignored. + * + * The following (undocumented) hack resets the internal state + * of the client handle. + */ + clnt_control(cl, CLSET_TIMEOUT, &NO_DEFAULT); + + + /* Clear server statistics */ + if (clnt_call(cl, SPRAYPROC_CLEAR, (xdrproc_t)xdr_void, NULL, + (xdrproc_t)xdr_void, NULL, TIMEOUT) != RPC_SUCCESS) + errx(1, "%s", clnt_sperror(cl, "")); + + + /* Spray server with packets */ + printf ("sending %u packets of lnth %d to %s ...", count, length, + *argv); + fflush (stdout); + + for (i = 0; i < count; i++) { + clnt_call(cl, SPRAYPROC_SPRAY, (xdrproc_t)xdr_sprayarr, + &host_array, (xdrproc_t)xdr_void, NULL, ONE_WAY); + + if (delay) { + usleep(delay); + } + } + + + /* Collect statistics from server */ + if (clnt_call(cl, SPRAYPROC_GET, (xdrproc_t)xdr_void, NULL, + (xdrproc_t)xdr_spraycumul, &host_stats, TIMEOUT) != RPC_SUCCESS) + errx(1, "%s", clnt_sperror(cl, "")); + + xmit_time = host_stats.clock.sec + + (host_stats.clock.usec / 1000000.0); + + printf ("\n\tin %.2f seconds elapsed time\n", xmit_time); + + + /* report dropped packets */ + if (host_stats.counter != count) { + int packets_dropped = count - host_stats.counter; + + printf("\t%d packets (%.2f%%) dropped\n", + packets_dropped, + 100.0 * packets_dropped / count ); + } else { + printf("\tno packets dropped\n"); + } + + printf("Sent:"); + print_xferstats(count, length, xmit_time); + + printf("Rcvd:"); + print_xferstats(host_stats.counter, length, xmit_time); + + exit (0); +} + + +static void +print_xferstats(u_int packets, int packetlen, double xfertime) +{ + int datalen; + double pps; /* packets per second */ + double bps; /* bytes per second */ + + datalen = packets * packetlen; + pps = packets / xfertime; + bps = datalen / xfertime; + + printf("\t%.0f packets/sec, ", pps); + + if (bps >= 1024) + printf ("%.1fK ", bps / 1024); + else + printf ("%.0f ", bps); + + printf("bytes/sec\n"); +} + + +static void +usage(void) +{ + fprintf(stderr, + "usage: spray [-c count] [-l length] [-d delay] host\n"); + exit(1); +} |
