1/*
2 * Copyright (c) 1983, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef lint
31static const char copyright[] =
32"@(#) Copyright (c) 1983, 1993, 1994\n\
33 The Regents of the University of California. All rights reserved.\n";
34#endif /* not lint */
35
36#ifndef lint
37static const char sccsid[] = "@(#)ruptime.c 8.2 (Berkeley) 4/5/94";
38#endif /* not lint */
39
40#include <sys/cdefs.h>
| 1/*
2 * Copyright (c) 1983, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef lint
31static const char copyright[] =
32"@(#) Copyright (c) 1983, 1993, 1994\n\
33 The Regents of the University of California. All rights reserved.\n";
34#endif /* not lint */
35
36#ifndef lint
37static const char sccsid[] = "@(#)ruptime.c 8.2 (Berkeley) 4/5/94";
38#endif /* not lint */
39
40#include <sys/cdefs.h>
|
41__FBSDID("$FreeBSD: stable/11/usr.bin/ruptime/ruptime.c 331722 2018-03-29 02:50:57Z eadler $");
| 41__FBSDID("$FreeBSD: stable/11/usr.bin/ruptime/ruptime.c 359798 2020-04-11 07:37:10Z nyan $");
|
42
43#include <sys/param.h>
44
45#include <protocols/rwhod.h>
46
47#include <dirent.h>
48#include <err.h>
49#include <errno.h>
50#include <fcntl.h>
51#include <stdio.h>
52#include <stdlib.h>
53#include <string.h>
54#include <time.h>
55#include <unistd.h>
56
57static struct hs {
58 struct whod hs_wd;
59 int hs_nusers;
60} *hs;
61#define LEFTEARTH(h) (now - (h) > 4*24*60*60)
62#define ISDOWN(h) (now - (h)->hs_wd.wd_recvtime > 11 * 60)
63#define WHDRSIZE __offsetof(struct whod, wd_we)
64
65static size_t nhosts;
66static time_t now;
67static int rflg = 1;
68static DIR *dirp;
69
70static int hscmp(const void *, const void *);
71static char *interval(time_t, const char *);
| 42
43#include <sys/param.h>
44
45#include <protocols/rwhod.h>
46
47#include <dirent.h>
48#include <err.h>
49#include <errno.h>
50#include <fcntl.h>
51#include <stdio.h>
52#include <stdlib.h>
53#include <string.h>
54#include <time.h>
55#include <unistd.h>
56
57static struct hs {
58 struct whod hs_wd;
59 int hs_nusers;
60} *hs;
61#define LEFTEARTH(h) (now - (h) > 4*24*60*60)
62#define ISDOWN(h) (now - (h)->hs_wd.wd_recvtime > 11 * 60)
63#define WHDRSIZE __offsetof(struct whod, wd_we)
64
65static size_t nhosts;
66static time_t now;
67static int rflg = 1;
68static DIR *dirp;
69
70static int hscmp(const void *, const void *);
71static char *interval(time_t, const char *);
|
| 72static int iwidth(int);
|
72static int lcmp(const void *, const void *);
73static void ruptime(const char *, int, int (*)(const void *, const void *));
74static int tcmp(const void *, const void *);
75static int ucmp(const void *, const void *);
76static void usage(void);
77
78int
79main(int argc, char *argv[])
80{
81 int (*cmp)(const void *, const void *);
82 int aflg, ch;
83
84 aflg = 0;
85 cmp = hscmp;
86 while ((ch = getopt(argc, argv, "alrut")) != -1)
87 switch (ch) {
88 case 'a':
89 aflg = 1;
90 break;
91 case 'l':
92 cmp = lcmp;
93 break;
94 case 'r':
95 rflg = -1;
96 break;
97 case 't':
98 cmp = tcmp;
99 break;
100 case 'u':
101 cmp = ucmp;
102 break;
103 default:
104 usage();
105 }
106 argc -= optind;
107 argv += optind;
108
109 if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL)
110 err(1, "%s", _PATH_RWHODIR);
111
112 ruptime(*argv, aflg, cmp);
113 while (*argv++ != NULL) {
114 if (*argv == NULL)
115 break;
116 ruptime(*argv, aflg, cmp);
117 }
118 exit(0);
119}
120
121static char *
122interval(time_t tval, const char *updown)
123{
124 static char resbuf[32];
125 int days, hours, minutes;
126
127 if (tval < 0) {
128 (void)snprintf(resbuf, sizeof(resbuf), "%s ??:??", updown);
129 return (resbuf);
130 }
131 /* Round to minutes. */
132 minutes = (tval + (60 - 1)) / 60;
133 hours = minutes / 60;
134 minutes %= 60;
135 days = hours / 24;
136 hours %= 24;
137 if (days)
138 (void)snprintf(resbuf, sizeof(resbuf),
139 "%s %4d+%02d:%02d", updown, days, hours, minutes);
140 else
141 (void)snprintf(resbuf, sizeof(resbuf),
142 "%s %2d:%02d", updown, hours, minutes);
143 return (resbuf);
144}
145
| 73static int lcmp(const void *, const void *);
74static void ruptime(const char *, int, int (*)(const void *, const void *));
75static int tcmp(const void *, const void *);
76static int ucmp(const void *, const void *);
77static void usage(void);
78
79int
80main(int argc, char *argv[])
81{
82 int (*cmp)(const void *, const void *);
83 int aflg, ch;
84
85 aflg = 0;
86 cmp = hscmp;
87 while ((ch = getopt(argc, argv, "alrut")) != -1)
88 switch (ch) {
89 case 'a':
90 aflg = 1;
91 break;
92 case 'l':
93 cmp = lcmp;
94 break;
95 case 'r':
96 rflg = -1;
97 break;
98 case 't':
99 cmp = tcmp;
100 break;
101 case 'u':
102 cmp = ucmp;
103 break;
104 default:
105 usage();
106 }
107 argc -= optind;
108 argv += optind;
109
110 if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL)
111 err(1, "%s", _PATH_RWHODIR);
112
113 ruptime(*argv, aflg, cmp);
114 while (*argv++ != NULL) {
115 if (*argv == NULL)
116 break;
117 ruptime(*argv, aflg, cmp);
118 }
119 exit(0);
120}
121
122static char *
123interval(time_t tval, const char *updown)
124{
125 static char resbuf[32];
126 int days, hours, minutes;
127
128 if (tval < 0) {
129 (void)snprintf(resbuf, sizeof(resbuf), "%s ??:??", updown);
130 return (resbuf);
131 }
132 /* Round to minutes. */
133 minutes = (tval + (60 - 1)) / 60;
134 hours = minutes / 60;
135 minutes %= 60;
136 days = hours / 24;
137 hours %= 24;
138 if (days)
139 (void)snprintf(resbuf, sizeof(resbuf),
140 "%s %4d+%02d:%02d", updown, days, hours, minutes);
141 else
142 (void)snprintf(resbuf, sizeof(resbuf),
143 "%s %2d:%02d", updown, hours, minutes);
144 return (resbuf);
145}
146
|
| 147/* Width to print a small nonnegative integer. */
148static int
149iwidth(int w)
150{
151 if (w < 10)
152 return (1);
153 if (w < 100)
154 return (2);
155 if (w < 1000)
156 return (3);
157 if (w < 10000)
158 return (4);
159 return (5);
160}
161
|
146#define HS(a) ((const struct hs *)(a))
147
148/* Alphabetical comparison. */
149static int
150hscmp(const void *a1, const void *a2)
151{
152 return (rflg *
153 strcmp(HS(a1)->hs_wd.wd_hostname, HS(a2)->hs_wd.wd_hostname));
154}
155
156/* Load average comparison. */
157static int
158lcmp(const void *a1, const void *a2)
159{
160 if (ISDOWN(HS(a1)))
161 if (ISDOWN(HS(a2)))
162 return (tcmp(a1, a2));
163 else
164 return (rflg);
165 else if (ISDOWN(HS(a2)))
166 return (-rflg);
167 else
168 return (rflg *
169 (HS(a2)->hs_wd.wd_loadav[0] - HS(a1)->hs_wd.wd_loadav[0]));
170}
171
172static void
173ruptime(const char *host, int aflg, int (*cmp)(const void *, const void *))
174{
175 struct hs *hsp;
176 struct whod *wd;
177 struct whoent *we;
178 struct dirent *dp;
| 162#define HS(a) ((const struct hs *)(a))
163
164/* Alphabetical comparison. */
165static int
166hscmp(const void *a1, const void *a2)
167{
168 return (rflg *
169 strcmp(HS(a1)->hs_wd.wd_hostname, HS(a2)->hs_wd.wd_hostname));
170}
171
172/* Load average comparison. */
173static int
174lcmp(const void *a1, const void *a2)
175{
176 if (ISDOWN(HS(a1)))
177 if (ISDOWN(HS(a2)))
178 return (tcmp(a1, a2));
179 else
180 return (rflg);
181 else if (ISDOWN(HS(a2)))
182 return (-rflg);
183 else
184 return (rflg *
185 (HS(a2)->hs_wd.wd_loadav[0] - HS(a1)->hs_wd.wd_loadav[0]));
186}
187
188static void
189ruptime(const char *host, int aflg, int (*cmp)(const void *, const void *))
190{
191 struct hs *hsp;
192 struct whod *wd;
193 struct whoent *we;
194 struct dirent *dp;
|
179 const char *hostname;
180 int fd, i, maxloadav;
| 195 int fd, hostnamewidth, i, loadavwidth[3], userswidth, w;
|
181 size_t hspace;
182 ssize_t cc;
183
184 rewinddir(dirp);
185 hsp = NULL;
| 196 size_t hspace;
197 ssize_t cc;
198
199 rewinddir(dirp);
200 hsp = NULL;
|
186 maxloadav = -1;
| 201 hostnamewidth = 0;
202 loadavwidth[0] = 4;
203 loadavwidth[1] = 4;
204 loadavwidth[2] = 4;
205 userswidth = 1;
|
187 (void)time(&now);
188 for (nhosts = hspace = 0; (dp = readdir(dirp)) != NULL;) {
189 if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5) != 0)
190 continue;
191 if ((fd = open(dp->d_name, O_RDONLY, 0)) < 0) {
192 warn("%s", dp->d_name);
193 continue;
194 }
195
196 if (nhosts == hspace) {
197 if ((hs =
198 realloc(hs, (hspace += 40) * sizeof(*hs))) == NULL)
199 err(1, NULL);
200 hsp = hs + nhosts;
201 }
202
203 wd = &hsp->hs_wd;
204 cc = read(fd, wd, sizeof(*wd));
205 (void)close(fd);
206 if (cc < (ssize_t)WHDRSIZE)
207 continue;
208
| 206 (void)time(&now);
207 for (nhosts = hspace = 0; (dp = readdir(dirp)) != NULL;) {
208 if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5) != 0)
209 continue;
210 if ((fd = open(dp->d_name, O_RDONLY, 0)) < 0) {
211 warn("%s", dp->d_name);
212 continue;
213 }
214
215 if (nhosts == hspace) {
216 if ((hs =
217 realloc(hs, (hspace += 40) * sizeof(*hs))) == NULL)
218 err(1, NULL);
219 hsp = hs + nhosts;
220 }
221
222 wd = &hsp->hs_wd;
223 cc = read(fd, wd, sizeof(*wd));
224 (void)close(fd);
225 if (cc < (ssize_t)WHDRSIZE)
226 continue;
227
|
209 if (host != NULL) {
210 hostname = wd->wd_hostname;
211 if (strcasecmp(hostname, host) != 0)
212 continue;
213 }
| 228 if (host != NULL && strcasecmp(wd->wd_hostname, host) != 0)
229 continue;
|
214 if (LEFTEARTH(wd->wd_recvtime))
215 continue;
216
| 230 if (LEFTEARTH(wd->wd_recvtime))
231 continue;
232
|
217 for (i = 0; i < 2; i++)
218 if (wd->wd_loadav[i] > maxloadav)
219 maxloadav = wd->wd_loadav[i];
| 233 if (hostnamewidth < (int)strlen(wd->wd_hostname))
234 hostnamewidth = (int)strlen(wd->wd_hostname);
235 for (i = 0; i < 3; i++) {
236 w = iwidth(wd->wd_loadav[i] / 100) + 3;
237 if (loadavwidth[i] < w)
238 loadavwidth[i] = w;
239 }
|
220
221 for (hsp->hs_nusers = 0, we = &wd->wd_we[0];
222 (char *)(we + 1) <= (char *)wd + cc; we++)
223 if (aflg || we->we_idle < 3600)
224 ++hsp->hs_nusers;
| 240
241 for (hsp->hs_nusers = 0, we = &wd->wd_we[0];
242 (char *)(we + 1) <= (char *)wd + cc; we++)
243 if (aflg || we->we_idle < 3600)
244 ++hsp->hs_nusers;
|
| 245 if (userswidth < iwidth(hsp->hs_nusers))
246 userswidth = iwidth(hsp->hs_nusers);
|
225 ++hsp;
226 ++nhosts;
227 }
228 if (nhosts == 0) {
229 if (host == NULL)
230 errx(1, "no hosts in %s", _PATH_RWHODIR);
231 else
232 warnx("host %s not in %s", host, _PATH_RWHODIR);
233 }
234
235 qsort(hs, nhosts, sizeof(hs[0]), cmp);
| 247 ++hsp;
248 ++nhosts;
249 }
250 if (nhosts == 0) {
251 if (host == NULL)
252 errx(1, "no hosts in %s", _PATH_RWHODIR);
253 else
254 warnx("host %s not in %s", host, _PATH_RWHODIR);
255 }
256
257 qsort(hs, nhosts, sizeof(hs[0]), cmp);
|
| 258 w = userswidth + loadavwidth[0] + loadavwidth[1] + loadavwidth[2];
259 if (hostnamewidth + w > 41)
260 hostnamewidth = 41 - w; /* limit to 79 cols */
|
236 for (i = 0; i < (int)nhosts; i++) {
237 hsp = &hs[i];
238 wd = &hsp->hs_wd;
239 if (ISDOWN(hsp)) {
| 261 for (i = 0; i < (int)nhosts; i++) {
262 hsp = &hs[i];
263 wd = &hsp->hs_wd;
264 if (ISDOWN(hsp)) {
|
240 (void)printf("%-25.25s%s\n", wd->wd_hostname,
| 265 (void)printf("%-*.*s%s\n",
266 hostnamewidth, hostnamewidth, wd->wd_hostname,
|
241 interval(now - hsp->hs_wd.wd_recvtime, "down"));
242 continue;
243 }
244 (void)printf(
| 267 interval(now - hsp->hs_wd.wd_recvtime, "down"));
268 continue;
269 }
270 (void)printf(
|
245 "%-25.25s%s, %4d user%s load %*.2f, %*.2f, %*.2f\n",
246 wd->wd_hostname,
| 271 "%-*.*s %s, %*d user%s load %*.2f, %*.2f, %*.2f\n",
272 hostnamewidth, hostnamewidth, wd->wd_hostname,
|
247 interval((time_t)wd->wd_sendtime -
248 (time_t)wd->wd_boottime, " up"),
| 273 interval((time_t)wd->wd_sendtime -
274 (time_t)wd->wd_boottime, " up"),
|
249 hsp->hs_nusers,
| 275 userswidth, hsp->hs_nusers,
|
250 hsp->hs_nusers == 1 ? ", " : "s,",
| 276 hsp->hs_nusers == 1 ? ", " : "s,",
|
251 maxloadav >= 1000 ? 5 : 4,
252 wd->wd_loadav[0] / 100.0,
253 maxloadav >= 1000 ? 5 : 4,
254 wd->wd_loadav[1] / 100.0,
255 maxloadav >= 1000 ? 5 : 4,
256 wd->wd_loadav[2] / 100.0);
| 277 loadavwidth[0], wd->wd_loadav[0] / 100.0,
278 loadavwidth[1], wd->wd_loadav[1] / 100.0,
279 loadavwidth[2], wd->wd_loadav[2] / 100.0);
|
257 }
258 free(hs);
259 hs = NULL;
260}
261
262/* Number of users comparison. */
263static int
264ucmp(const void *a1, const void *a2)
265{
266 if (ISDOWN(HS(a1)))
267 if (ISDOWN(HS(a2)))
268 return (tcmp(a1, a2));
269 else
270 return (rflg);
271 else if (ISDOWN(HS(a2)))
272 return (-rflg);
273 else
274 return (rflg * (HS(a2)->hs_nusers - HS(a1)->hs_nusers));
275}
276
277/* Uptime comparison. */
278static int
279tcmp(const void *a1, const void *a2)
280{
281 return (rflg * (
282 (ISDOWN(HS(a2)) ? HS(a2)->hs_wd.wd_recvtime - now
283 : HS(a2)->hs_wd.wd_sendtime - HS(a2)->hs_wd.wd_boottime)
284 -
285 (ISDOWN(HS(a1)) ? HS(a1)->hs_wd.wd_recvtime - now
286 : HS(a1)->hs_wd.wd_sendtime - HS(a1)->hs_wd.wd_boottime)
287 ));
288}
289
290static void
291usage(void)
292{
293 (void)fprintf(stderr, "usage: ruptime [-alrtu] [host ...]\n");
294 exit(1);
295}
| 280 }
281 free(hs);
282 hs = NULL;
283}
284
285/* Number of users comparison. */
286static int
287ucmp(const void *a1, const void *a2)
288{
289 if (ISDOWN(HS(a1)))
290 if (ISDOWN(HS(a2)))
291 return (tcmp(a1, a2));
292 else
293 return (rflg);
294 else if (ISDOWN(HS(a2)))
295 return (-rflg);
296 else
297 return (rflg * (HS(a2)->hs_nusers - HS(a1)->hs_nusers));
298}
299
300/* Uptime comparison. */
301static int
302tcmp(const void *a1, const void *a2)
303{
304 return (rflg * (
305 (ISDOWN(HS(a2)) ? HS(a2)->hs_wd.wd_recvtime - now
306 : HS(a2)->hs_wd.wd_sendtime - HS(a2)->hs_wd.wd_boottime)
307 -
308 (ISDOWN(HS(a1)) ? HS(a1)->hs_wd.wd_recvtime - now
309 : HS(a1)->hs_wd.wd_sendtime - HS(a1)->hs_wd.wd_boottime)
310 ));
311}
312
313static void
314usage(void)
315{
316 (void)fprintf(stderr, "usage: ruptime [-alrtu] [host ...]\n");
317 exit(1);
318}
|