1 /* $NetBSD: spray.c,v 1.5 1997/10/17 13:39:12 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1993 Winning Strategies, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Winning Strategies, Inc. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 #ifndef lint 35 __RCSID("$NetBSD: spray.c,v 1.5 1997/10/17 13:39:12 lukem Exp $"); 36 #endif 37 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <unistd.h> 41 42 #include <rpc/rpc.h> 43 #include <rpcsvc/spray.h> 44 45 #ifndef SPRAYOVERHEAD 46 #define SPRAYOVERHEAD 86 47 #endif 48 49 int main __P((int, char **)); 50 void print_xferstats __P((int, int, double)); 51 void usage __P((void)); 52 53 /* spray buffer */ 54 char spray_buffer[SPRAYMAX]; 55 56 /* RPC timeouts */ 57 struct timeval NO_DEFAULT = { -1, -1 }; 58 struct timeval ONE_WAY = { 0, 0 }; 59 struct timeval TIMEOUT = { 25, 0 }; 60 61 int 62 main(argc, argv) 63 int argc; 64 char **argv; 65 { 66 char *progname; 67 spraycumul host_stats; 68 sprayarr host_array; 69 CLIENT *cl; 70 int c; 71 int i; 72 int count = 0; 73 int delay = 0; 74 int length = 0; 75 double xmit_time; /* time to receive data */ 76 77 progname = *argv; 78 while ((c = getopt(argc, argv, "c:d:l:")) != -1) { 79 switch (c) { 80 case 'c': 81 count = atoi(optarg); 82 break; 83 case 'd': 84 delay = atoi(optarg); 85 break; 86 case 'l': 87 length = atoi(optarg); 88 break; 89 default: 90 usage(); 91 /* NOTREACHED */ 92 } 93 } 94 argc -= optind; 95 argv += optind; 96 97 if (argc != 1) { 98 usage(); 99 /* NOTREACHED */ 100 } 101 102 103 /* Correct packet length. */ 104 if (length > SPRAYMAX) { 105 length = SPRAYMAX; 106 } else if (length < SPRAYOVERHEAD) { 107 length = SPRAYOVERHEAD; 108 } else { 109 /* The RPC portion of the packet is a multiple of 32 bits. */ 110 length -= SPRAYOVERHEAD - 3; 111 length &= ~3; 112 length += SPRAYOVERHEAD; 113 } 114 115 116 /* 117 * The default value of count is the number of packets required 118 * to make the total stream size 100000 bytes. 119 */ 120 if (!count) { 121 count = 100000 / length; 122 } 123 124 /* Initialize spray argument */ 125 host_array.sprayarr_len = length - SPRAYOVERHEAD; 126 host_array.sprayarr_val = spray_buffer; 127 128 129 /* create connection with server */ 130 cl = clnt_create(*argv, SPRAYPROG, SPRAYVERS, "udp"); 131 if (cl == NULL) { 132 clnt_pcreateerror(progname); 133 exit(1); 134 } 135 136 137 /* 138 * For some strange reason, RPC 4.0 sets the default timeout, 139 * thus timeouts specified in clnt_call() are always ignored. 140 * 141 * The following (undocumented) hack resets the internal state 142 * of the client handle. 143 */ 144 clnt_control(cl, CLSET_TIMEOUT, (caddr_t)&NO_DEFAULT); 145 146 147 /* Clear server statistics */ 148 if (clnt_call(cl, SPRAYPROC_CLEAR, xdr_void, NULL, xdr_void, NULL, TIMEOUT) != RPC_SUCCESS) { 149 clnt_perror(cl, progname); 150 exit(1); 151 } 152 153 154 /* Spray server with packets */ 155 printf ("sending %d packets of lnth %d to %s ...", count, length, *argv); 156 fflush (stdout); 157 158 for (i = 0; i < count; i++) { 159 clnt_call(cl, SPRAYPROC_SPRAY, xdr_sprayarr, &host_array, xdr_void, NULL, ONE_WAY); 160 161 if (delay) { 162 usleep(delay); 163 } 164 } 165 166 167 /* Collect statistics from server */ 168 if (clnt_call(cl, SPRAYPROC_GET, xdr_void, NULL, xdr_spraycumul, &host_stats, TIMEOUT) != RPC_SUCCESS) { 169 clnt_perror(cl, progname); 170 exit(1); 171 } 172 173 xmit_time = host_stats.clock.sec + 174 (host_stats.clock.usec / 1000000.0); 175 176 printf ("\n\tin %.2f seconds elapsed time\n", xmit_time); 177 178 179 /* report dropped packets */ 180 if (host_stats.counter != count) { 181 int packets_dropped = count - host_stats.counter; 182 183 printf("\t%d packets (%.2f%%) dropped\n", 184 packets_dropped, 185 100.0 * packets_dropped / count ); 186 } else { 187 printf("\tno packets dropped\n"); 188 } 189 190 printf("Sent:"); 191 print_xferstats(count, length, xmit_time); 192 193 printf("Rcvd:"); 194 print_xferstats(host_stats.counter, length, xmit_time); 195 196 exit (0); 197 } 198 199 200 void 201 print_xferstats(packets, packetlen, xfertime) 202 int packets; 203 int packetlen; 204 double xfertime; 205 { 206 int datalen; 207 double pps; /* packets per second */ 208 double bps; /* bytes per second */ 209 210 datalen = packets * packetlen; 211 pps = packets / xfertime; 212 bps = datalen / xfertime; 213 214 printf("\t%.0f packets/sec, ", pps); 215 216 if (bps >= 1024) 217 printf ("%.1fK ", bps / 1024); 218 else 219 printf ("%.0f ", bps); 220 221 printf("bytes/sec\n"); 222 } 223 224 225 void 226 usage () 227 { 228 fprintf(stderr, "usage: spray [-c count] [-l length] [-d delay] host\n"); 229 exit(1); 230 } 231