2 * Copyright (c) 1983, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#) Copyright (c) 1983, 1993, 1994 The Regents of the University of California. All rights reserved.
34 * @(#)ruptime.c 8.2 (Berkeley) 4/5/94
35 * $FreeBSD: src/usr.bin/ruptime/ruptime.c,v 1.12.2.1 2000/06/30 09:45:00 ps Exp $
36 * $DragonFly: src/usr.bin/ruptime/ruptime.c,v 1.8 2005/01/05 00:33:50 cpressey Exp $
39 #include <sys/param.h>
41 #include <protocols/rwhod.h>
58 #define LEFTEARTH(h) (now - (h)->hs_wd->wd_recvtime > 4*24*60*60)
59 #define ISDOWN(h) (now - (h)->hs_wd->wd_recvtime > 11 * 60)
60 #define WHDRSIZE (sizeof (awhod) - sizeof (awhod.wd_we))
66 int hscmp(const void *, const void *);
67 char *interval(time_t, const char *);
68 int lcmp(const void *, const void *);
70 int tcmp(const void *, const void *);
71 int ucmp(const void *, const void *);
75 main(int argc, char *argv[])
78 struct hs *hsp = NULL;
83 int aflg, ch, fd, maxloadav;
84 char buf[sizeof(struct whod)];
85 int (*cmp)(const void *, const void *);
90 while ((ch = getopt(argc, argv, "alrut")) != -1)
116 if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL)
117 err(1, "%s", _PATH_RWHODIR);
120 for (nhosts = hspace = 0; (dp = readdir(dirp)) != NULL;) {
121 if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5))
123 if ((fd = open(dp->d_name, O_RDONLY, 0)) < 0) {
124 warn("%s", dp->d_name);
127 cc = read(fd, buf, sizeof(struct whod));
132 if (nhosts == hspace) {
134 realloc(hs, (hspace += 40) * sizeof(*hs))) == NULL)
139 if ((hsp->hs_wd = malloc((size_t)WHDRSIZE)) == NULL)
141 memmove(hsp->hs_wd, buf, (size_t)WHDRSIZE);
143 for (wd = (struct whod *)buf, i = 0; i < 2; ++i)
144 if (wd->wd_loadav[i] > maxloadav)
145 maxloadav = wd->wd_loadav[i];
147 for (hsp->hs_nusers = 0,
148 we = (struct whoent *)(buf + cc); --we >= wd->wd_we;)
149 if (aflg || we->we_idle < 3600)
155 errx(1, "no hosts in %s", _PATH_RWHODIR);
158 qsort(hs, nhosts, sizeof(hs[0]), cmp);
159 for (i = 0; i < nhosts; i++) {
164 (void)printf("%-12.12s%s\n", hsp->hs_wd->wd_hostname,
165 interval(now - hsp->hs_wd->wd_recvtime, "down"));
169 "%-12.12s%s, %4d user%s load %*.2f, %*.2f, %*.2f\n",
170 hsp->hs_wd->wd_hostname,
171 interval((time_t)hsp->hs_wd->wd_sendtime -
172 (time_t)hsp->hs_wd->wd_boottime, " up"),
174 hsp->hs_nusers == 1 ? ", " : "s,",
175 maxloadav >= 1000 ? 5 : 4,
176 hsp->hs_wd->wd_loadav[0] / 100.0,
177 maxloadav >= 1000 ? 5 : 4,
178 hsp->hs_wd->wd_loadav[1] / 100.0,
179 maxloadav >= 1000 ? 5 : 4,
180 hsp->hs_wd->wd_loadav[2] / 100.0);
186 interval(time_t tval, const char *updown)
188 static char resbuf[32];
189 int days, hours, minutes;
192 (void)snprintf(resbuf, sizeof(resbuf), " %s ??:??", updown);
195 /* round to minutes. */
196 minutes = (tval + (60 - 1)) / 60;
197 hours = minutes / 60;
202 (void)snprintf(resbuf, sizeof(resbuf),
203 "%s %3d+%02d:%02d", updown, days, hours, minutes);
205 (void)snprintf(resbuf, sizeof(resbuf),
206 "%s %2d:%02d", updown, hours, minutes);
210 #define HS(a) ((const struct hs *)(a))
212 /* Alphabetical comparison. */
214 hscmp(const void *a1, const void *a2)
217 strcmp(HS(a1)->hs_wd->wd_hostname, HS(a2)->hs_wd->wd_hostname));
220 /* Load average comparison. */
222 lcmp(const void *a1, const void *a2)
226 return (tcmp(a1, a2));
229 else if (ISDOWN(HS(a2)))
233 (HS(a2)->hs_wd->wd_loadav[0] - HS(a1)->hs_wd->wd_loadav[0]));
236 /* Number of users comparison. */
238 ucmp(const void *a1, const void *a2)
242 return (tcmp(a1, a2));
245 else if (ISDOWN(HS(a2)))
248 return (rflg * (HS(a2)->hs_nusers - HS(a1)->hs_nusers));
251 /* Uptime comparison. */
253 tcmp(const void *a1, const void *a2)
256 (ISDOWN(HS(a2)) ? HS(a2)->hs_wd->wd_recvtime - now
257 : HS(a2)->hs_wd->wd_sendtime - HS(a2)->hs_wd->wd_boottime)
259 (ISDOWN(HS(a1)) ? HS(a1)->hs_wd->wd_recvtime - now
260 : HS(a1)->hs_wd->wd_sendtime - HS(a1)->hs_wd->wd_boottime)
267 (void)fprintf(stderr, "usage: ruptime [-alrut]\n");