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1 | /* |
2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. | |
3 | * | |
4 | * @APPLE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights | |
7 | * Reserved. This file contains Original Code and/or Modifications of | |
8 | * Original Code as defined in and that are subject to the Apple Public | |
9 | * Source License Version 1.0 (the 'License'). You may not use this file | |
10 | * except in compliance with the License. Please obtain a copy of the | |
11 | * License at http://www.apple.com/publicsource and read it before using | |
12 | * this file. | |
13 | * | |
14 | * The Original Code and all software distributed under the License are | |
15 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
19 | * License for the specific language governing rights and limitations | |
20 | * under the License." | |
21 | * | |
22 | * @APPLE_LICENSE_HEADER_END@ | |
23 | */ | |
24 | /* | |
25 | * Copyright (c) 1993 Winning Strategies, Inc. | |
26 | * All rights reserved. | |
27 | * | |
28 | * Redistribution and use in source and binary forms, with or without | |
29 | * modification, are permitted provided that the following conditions | |
30 | * are met: | |
31 | * 1. Redistributions of source code must retain the above copyright | |
32 | * notice, this list of conditions and the following disclaimer. | |
33 | * 2. Redistributions in binary form must reproduce the above copyright | |
34 | * notice, this list of conditions and the following disclaimer in the | |
35 | * documentation and/or other materials provided with the distribution. | |
36 | * 3. All advertising materials mentioning features or use of this software | |
37 | * must display the following acknowledgement: | |
38 | * This product includes software developed by Winning Strategies, Inc. | |
39 | * 4. The name of the author may not be used to endorse or promote products | |
40 | * derived from this software without specific prior written permission | |
41 | * | |
42 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
43 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
44 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
45 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
46 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
47 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
48 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
49 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
50 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
51 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
52 | * | |
53 | * $Id: spray.c,v 1.1.1.1 1999/05/02 03:58:27 wsanchez Exp $ | |
54 | */ | |
55 | ||
56 | #include <stdio.h> | |
57 | #include <stdlib.h> | |
58 | #include <unistd.h> | |
59 | ||
60 | #include <rpc/rpc.h> | |
61 | #include <rpcsvc/spray.h> | |
62 | ||
63 | #ifndef SPRAYOVERHEAD | |
64 | #define SPRAYOVERHEAD 86 | |
65 | #endif | |
66 | ||
67 | void usage (); | |
68 | void print_xferstats (); | |
69 | ||
70 | /* spray buffer */ | |
71 | char spray_buffer[SPRAYMAX]; | |
72 | ||
73 | /* RPC timeouts */ | |
74 | struct timeval NO_DEFAULT = { -1, -1 }; | |
75 | struct timeval ONE_WAY = { 0, 0 }; | |
76 | struct timeval TIMEOUT = { 25, 0 }; | |
77 | ||
78 | int | |
79 | main(argc, argv) | |
80 | int argc; | |
81 | char **argv; | |
82 | { | |
83 | char *progname; | |
84 | spraycumul host_stats; | |
85 | sprayarr host_array; | |
86 | CLIENT *cl; | |
87 | int c; | |
88 | int i; | |
89 | int count = 0; | |
90 | int delay = 0; | |
91 | int length = 0; | |
92 | double xmit_time; /* time to receive data */ | |
93 | ||
94 | progname = *argv; | |
95 | while ((c = getopt(argc, argv, "c:d:l:")) != -1) { | |
96 | switch (c) { | |
97 | case 'c': | |
98 | count = atoi(optarg); | |
99 | break; | |
100 | case 'd': | |
101 | delay = atoi(optarg); | |
102 | break; | |
103 | case 'l': | |
104 | length = atoi(optarg); | |
105 | break; | |
106 | default: | |
107 | usage(); | |
108 | /* NOTREACHED */ | |
109 | } | |
110 | } | |
111 | argc -= optind; | |
112 | argv += optind; | |
113 | ||
114 | if (argc != 1) { | |
115 | usage(); | |
116 | /* NOTREACHED */ | |
117 | } | |
118 | ||
119 | ||
120 | /* Correct packet length. */ | |
121 | if (length > SPRAYMAX) { | |
122 | length = SPRAYMAX; | |
123 | } else if (length < SPRAYOVERHEAD) { | |
124 | length = SPRAYOVERHEAD; | |
125 | } else { | |
126 | /* The RPC portion of the packet is a multiple of 32 bits. */ | |
127 | length -= SPRAYOVERHEAD - 3; | |
128 | length &= ~3; | |
129 | length += SPRAYOVERHEAD; | |
130 | } | |
131 | ||
132 | ||
133 | /* | |
134 | * The default value of count is the number of packets required | |
135 | * to make the total stream size 100000 bytes. | |
136 | */ | |
137 | if (!count) { | |
138 | count = 100000 / length; | |
139 | } | |
140 | ||
141 | /* Initialize spray argument */ | |
142 | host_array.sprayarr_len = length - SPRAYOVERHEAD; | |
143 | host_array.sprayarr_val = spray_buffer; | |
144 | ||
145 | ||
146 | /* create connection with server */ | |
147 | cl = clnt_create(*argv, SPRAYPROG, SPRAYVERS, "udp"); | |
148 | if (cl == NULL) { | |
149 | clnt_pcreateerror(progname); | |
150 | exit(1); | |
151 | } | |
152 | ||
153 | ||
154 | /* | |
155 | * For some strange reason, RPC 4.0 sets the default timeout, | |
156 | * thus timeouts specified in clnt_call() are always ignored. | |
157 | * | |
158 | * The following (undocumented) hack resets the internal state | |
159 | * of the client handle. | |
160 | */ | |
161 | clnt_control(cl, CLSET_TIMEOUT, &NO_DEFAULT); | |
162 | ||
163 | ||
164 | /* Clear server statistics */ | |
165 | if (clnt_call(cl, SPRAYPROC_CLEAR, xdr_void, NULL, xdr_void, NULL, TIMEOUT) != RPC_SUCCESS) { | |
166 | clnt_perror(cl, progname); | |
167 | exit(1); | |
168 | } | |
169 | ||
170 | ||
171 | /* Spray server with packets */ | |
172 | printf ("sending %d packets of lnth %d to %s ...", count, length, *argv); | |
173 | fflush (stdout); | |
174 | ||
175 | for (i = 0; i < count; i++) { | |
176 | clnt_call(cl, SPRAYPROC_SPRAY, xdr_sprayarr, &host_array, xdr_void, NULL, ONE_WAY); | |
177 | ||
178 | if (delay) { | |
179 | usleep(delay); | |
180 | } | |
181 | } | |
182 | ||
183 | ||
184 | /* Collect statistics from server */ | |
185 | if (clnt_call(cl, SPRAYPROC_GET, xdr_void, NULL, xdr_spraycumul, &host_stats, TIMEOUT) != RPC_SUCCESS) { | |
186 | clnt_perror(cl, progname); | |
187 | exit(1); | |
188 | } | |
189 | ||
190 | xmit_time = host_stats.clock.sec + | |
191 | (host_stats.clock.usec / 1000000.0); | |
192 | ||
193 | printf ("\n\tin %.2f seconds elapsed time\n", xmit_time); | |
194 | ||
195 | ||
196 | /* report dropped packets */ | |
197 | if (host_stats.counter != count) { | |
198 | int packets_dropped = count - host_stats.counter; | |
199 | ||
200 | printf("\t%d packets (%.2f%%) dropped\n", | |
201 | packets_dropped, | |
202 | 100.0 * packets_dropped / count ); | |
203 | } else { | |
204 | printf("\tno packets dropped\n"); | |
205 | } | |
206 | ||
207 | printf("Sent:"); | |
208 | print_xferstats(count, length, xmit_time); | |
209 | ||
210 | printf("Rcvd:"); | |
211 | print_xferstats(host_stats.counter, length, xmit_time); | |
212 | ||
213 | exit (0); | |
214 | } | |
215 | ||
216 | ||
217 | void | |
218 | print_xferstats(packets, packetlen, xfertime) | |
219 | int packets; | |
220 | int packetlen; | |
221 | double xfertime; | |
222 | { | |
223 | int datalen; | |
224 | double pps; /* packets per second */ | |
225 | double bps; /* bytes per second */ | |
226 | ||
227 | datalen = packets * packetlen; | |
228 | pps = packets / xfertime; | |
229 | bps = datalen / xfertime; | |
230 | ||
231 | printf("\t%.0f packets/sec, ", pps); | |
232 | ||
233 | if (bps >= 1024) | |
234 | printf ("%.1fK ", bps / 1024); | |
235 | else | |
236 | printf ("%.0f ", bps); | |
237 | ||
238 | printf("bytes/sec\n"); | |
239 | } | |
240 | ||
241 | ||
242 | void | |
243 | usage () | |
244 | { | |
245 | fprintf(stderr, "usage: spray [-c count] [-l length] [-d delay] host\n"); | |
246 | exit(1); | |
247 | } |