1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
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 #ifndef lint
34 static const char rcsid[] =
35 "$FreeBSD$";
36 #endif /* not lint */
37
38 #include <err.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <unistd.h>
42
43 #include <rpc/rpc.h>
44 #include <rpcsvc/spray.h>
45
46 #ifndef SPRAYOVERHEAD
47 #define SPRAYOVERHEAD 86
48 #endif
49
50 static void usage(void);
51 static void print_xferstats(unsigned int, int, double);
52
53 /* spray buffer */
54 static char spray_buffer[SPRAYMAX];
55
56 /* RPC timeouts */
57 static struct timeval NO_DEFAULT = { -1, -1 };
58 static struct timeval ONE_WAY = { 0, 0 };
59 static struct timeval TIMEOUT = { 25, 0 };
60
61 int
main(int argc,char * argv[])62 main(int argc, char *argv[])
63 {
64 spraycumul host_stats;
65 sprayarr host_array;
66 CLIENT *cl;
67 int c;
68 u_int i;
69 u_int count = 0;
70 int delay = 0;
71 int length = 0;
72 double xmit_time; /* time to receive data */
73
74 while ((c = getopt(argc, argv, "c:d:l:")) != -1) {
75 switch (c) {
76 case 'c':
77 count = atoi(optarg);
78 break;
79 case 'd':
80 delay = atoi(optarg);
81 break;
82 case 'l':
83 length = atoi(optarg);
84 break;
85 default:
86 usage();
87 /* NOTREACHED */
88 }
89 }
90 argc -= optind;
91 argv += optind;
92
93 if (argc != 1) {
94 usage();
95 /* NOTREACHED */
96 }
97
98
99 /* Correct packet length. */
100 if (length > SPRAYMAX) {
101 length = SPRAYMAX;
102 } else if (length < SPRAYOVERHEAD) {
103 length = SPRAYOVERHEAD;
104 } else {
105 /* The RPC portion of the packet is a multiple of 32 bits. */
106 length -= SPRAYOVERHEAD - 3;
107 length &= ~3;
108 length += SPRAYOVERHEAD;
109 }
110
111
112 /*
113 * The default value of count is the number of packets required
114 * to make the total stream size 100000 bytes.
115 */
116 if (!count) {
117 count = 100000 / length;
118 }
119
120 /* Initialize spray argument */
121 host_array.sprayarr_len = length - SPRAYOVERHEAD;
122 host_array.sprayarr_val = spray_buffer;
123
124
125 /* create connection with server */
126 cl = clnt_create(*argv, SPRAYPROG, SPRAYVERS, "udp");
127 if (cl == NULL)
128 errx(1, "%s", clnt_spcreateerror(""));
129
130
131 /*
132 * For some strange reason, RPC 4.0 sets the default timeout,
133 * thus timeouts specified in clnt_call() are always ignored.
134 *
135 * The following (undocumented) hack resets the internal state
136 * of the client handle.
137 */
138 clnt_control(cl, CLSET_TIMEOUT, &NO_DEFAULT);
139
140
141 /* Clear server statistics */
142 if (clnt_call(cl, SPRAYPROC_CLEAR, (xdrproc_t)xdr_void, NULL,
143 (xdrproc_t)xdr_void, NULL, TIMEOUT) != RPC_SUCCESS)
144 errx(1, "%s", clnt_sperror(cl, ""));
145
146
147 /* Spray server with packets */
148 printf ("sending %u packets of length %d to %s ...", count, length,
149 *argv);
150 fflush (stdout);
151
152 for (i = 0; i < count; i++) {
153 clnt_call(cl, SPRAYPROC_SPRAY, (xdrproc_t)xdr_sprayarr,
154 &host_array, (xdrproc_t)xdr_void, NULL, ONE_WAY);
155
156 if (delay) {
157 usleep(delay);
158 }
159 }
160
161
162 /* Collect statistics from server */
163 if (clnt_call(cl, SPRAYPROC_GET, (xdrproc_t)xdr_void, NULL,
164 (xdrproc_t)xdr_spraycumul, &host_stats, TIMEOUT) != RPC_SUCCESS)
165 errx(1, "%s", clnt_sperror(cl, ""));
166
167 xmit_time = host_stats.clock.sec +
168 (host_stats.clock.usec / 1000000.0);
169
170 printf ("\n\tin %.2f seconds elapsed time\n", xmit_time);
171
172
173 /* report dropped packets */
174 if (host_stats.counter != count) {
175 int packets_dropped = count - host_stats.counter;
176
177 printf("\t%d packets (%.2f%%) dropped\n",
178 packets_dropped,
179 100.0 * packets_dropped / count );
180 } else {
181 printf("\tno packets dropped\n");
182 }
183
184 printf("Sent:");
185 print_xferstats(count, length, xmit_time);
186
187 printf("Rcvd:");
188 print_xferstats(host_stats.counter, length, xmit_time);
189
190 exit (0);
191 }
192
193
194 static void
print_xferstats(u_int packets,int packetlen,double xfertime)195 print_xferstats(u_int packets, int packetlen, double xfertime)
196 {
197 int datalen;
198 double pps; /* packets per second */
199 double bps; /* bytes per second */
200
201 datalen = packets * packetlen;
202 pps = packets / xfertime;
203 bps = datalen / xfertime;
204
205 printf("\t%.0f packets/sec, ", pps);
206
207 if (bps >= 1024)
208 printf ("%.1fK ", bps / 1024);
209 else
210 printf ("%.0f ", bps);
211
212 printf("bytes/sec\n");
213 }
214
215
216 static void
usage(void)217 usage(void)
218 {
219 fprintf(stderr,
220 "usage: spray [-c count] [-l length] [-d delay] host\n");
221 exit(1);
222 }
223