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22e155fc | 1 | /* |
e8dcae5f KB |
2 | * Copyright (c) 1983 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
6 | * provided that the above copyright notice and this paragraph are | |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
22e155fc DF |
16 | */ |
17 | ||
18 | #ifndef lint | |
19 | char copyright[] = | |
e8dcae5f | 20 | "@(#) Copyright (c) 1983 The Regents of the University of California.\n\ |
22e155fc | 21 | All rights reserved.\n"; |
e8dcae5f | 22 | #endif /* not lint */ |
22e155fc | 23 | |
be0e2d23 | 24 | #ifndef lint |
435e8dff | 25 | static char sccsid[] = "@(#)ruptime.c 5.6 (Berkeley) %G%"; |
e8dcae5f | 26 | #endif /* not lint */ |
be0e2d23 | 27 | |
ed0072ae | 28 | #include <sys/param.h> |
7123e2dc | 29 | #include <sys/dir.h> |
e8dcae5f | 30 | #include <sys/file.h> |
5a7285fa | 31 | #include <protocols/rwhod.h> |
e8dcae5f | 32 | #include <stdio.h> |
be0e2d23 BJ |
33 | |
34 | #define NHOSTS 100 | |
35 | int nhosts; | |
e8dcae5f | 36 | struct hs { |
be0e2d23 BJ |
37 | struct whod *hs_wd; |
38 | int hs_nusers; | |
39 | } hs[NHOSTS]; | |
40 | struct whod awhod; | |
be0e2d23 BJ |
41 | |
42 | #define WHDRSIZE (sizeof (awhod) - sizeof (awhod.wd_we)) | |
e8dcae5f | 43 | #define down(h) (now - (h)->hs_wd->wd_recvtime > 11 * 60) |
be0e2d23 | 44 | |
e8dcae5f KB |
45 | time_t now; |
46 | int rflg = 1; | |
47 | int hscmp(), ucmp(), lcmp(), tcmp(); | |
508c25be | 48 | |
be0e2d23 BJ |
49 | main(argc, argv) |
50 | int argc; | |
51 | char **argv; | |
52 | { | |
e8dcae5f KB |
53 | extern char *optarg; |
54 | extern int optind; | |
be0e2d23 BJ |
55 | register struct hs *hsp = hs; |
56 | register struct whod *wd; | |
57 | register struct whoent *we; | |
e8dcae5f KB |
58 | register DIR *dirp; |
59 | struct direct *dp; | |
60 | int aflg, cc, ch, f, i, maxloadav; | |
61 | char buf[sizeof(struct whod)]; | |
508c25be | 62 | int (*cmp)() = hscmp; |
e8dcae5f KB |
63 | time_t time(); |
64 | char *interval(), *malloc(); | |
65 | ||
66 | aflg = 0; | |
67 | maxloadav = -1; | |
68 | while ((ch = getopt(argc, argv, "alrut")) != EOF) | |
69 | switch((char)ch) { | |
70 | case 'a': | |
71 | aflg = 1; | |
72 | break; | |
73 | case 'l': | |
74 | cmp = lcmp; | |
75 | break; | |
76 | case 'r': | |
77 | rflg = -1; | |
78 | break; | |
79 | case 't': | |
80 | cmp = tcmp; | |
81 | break; | |
82 | case 'u': | |
83 | cmp = ucmp; | |
84 | break; | |
85 | default: | |
86 | fprintf(stderr, "usage: ruptime [-alrut]\n"); | |
87 | exit(1); | |
88 | } | |
be0e2d23 | 89 | |
435e8dff KB |
90 | if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL) { |
91 | perror(_PATH_RWHODIR); | |
be0e2d23 BJ |
92 | exit(1); |
93 | } | |
b9484359 | 94 | while (dp = readdir(dirp)) { |
e8dcae5f | 95 | if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5)) |
be0e2d23 BJ |
96 | continue; |
97 | if (nhosts == NHOSTS) { | |
e8dcae5f | 98 | fprintf(stderr, "ruptime: too many hosts\n"); |
be0e2d23 BJ |
99 | exit(1); |
100 | } | |
e8dcae5f | 101 | f = open(dp->d_name, O_RDONLY, 0); |
be0e2d23 | 102 | if (f > 0) { |
a39120ab | 103 | cc = read(f, buf, sizeof(struct whod)); |
be0e2d23 | 104 | if (cc >= WHDRSIZE) { |
e8dcae5f | 105 | /* NOSTRICT */ |
be0e2d23 BJ |
106 | hsp->hs_wd = (struct whod *)malloc(WHDRSIZE); |
107 | wd = (struct whod *)buf; | |
e8dcae5f | 108 | bcopy(wd, hsp->hs_wd, WHDRSIZE); |
be0e2d23 | 109 | hsp->hs_nusers = 0; |
acf8f1b2 BJ |
110 | for (i = 0; i < 2; i++) |
111 | if (wd->wd_loadav[i] > maxloadav) | |
112 | maxloadav = wd->wd_loadav[i]; | |
be0e2d23 BJ |
113 | we = (struct whoent *)(buf+cc); |
114 | while (--we >= wd->wd_we) | |
115 | if (aflg || we->we_idle < 3600) | |
116 | hsp->hs_nusers++; | |
117 | nhosts++; hsp++; | |
118 | } | |
e8dcae5f | 119 | (void)close(f); |
be0e2d23 | 120 | } |
be0e2d23 | 121 | } |
e8dcae5f KB |
122 | if (!nhosts) { |
123 | printf("ruptime: no hosts!?!\n"); | |
be0e2d23 BJ |
124 | exit(1); |
125 | } | |
e8dcae5f KB |
126 | qsort((char *)hs, nhosts, sizeof (hs[0]), cmp); |
127 | (void)time(&now); | |
be0e2d23 BJ |
128 | for (i = 0; i < nhosts; i++) { |
129 | hsp = &hs[i]; | |
508c25be | 130 | if (down(hsp)) { |
cad6a03e | 131 | printf("%-12.12s%s\n", hsp->hs_wd->wd_hostname, |
be0e2d23 BJ |
132 | interval(now - hsp->hs_wd->wd_recvtime, "down")); |
133 | continue; | |
134 | } | |
cad6a03e | 135 | printf("%-12.12s%s, %4d user%s load %*.2f, %*.2f, %*.2f\n", |
be0e2d23 BJ |
136 | hsp->hs_wd->wd_hostname, |
137 | interval(hsp->hs_wd->wd_sendtime - | |
de3b21e8 | 138 | hsp->hs_wd->wd_boottime, " up"), |
be0e2d23 BJ |
139 | hsp->hs_nusers, |
140 | hsp->hs_nusers == 1 ? ", " : "s,", | |
acf8f1b2 BJ |
141 | maxloadav >= 1000 ? 5 : 4, |
142 | hsp->hs_wd->wd_loadav[0] / 100.0, | |
143 | maxloadav >= 1000 ? 5 : 4, | |
144 | hsp->hs_wd->wd_loadav[1] / 100.0, | |
145 | maxloadav >= 1000 ? 5 : 4, | |
146 | hsp->hs_wd->wd_loadav[2] / 100.0); | |
be0e2d23 BJ |
147 | cfree(hsp->hs_wd); |
148 | } | |
149 | exit(0); | |
150 | } | |
151 | ||
152 | char * | |
e8dcae5f KB |
153 | interval(tval, updown) |
154 | time_t tval; | |
be0e2d23 BJ |
155 | char *updown; |
156 | { | |
157 | static char resbuf[32]; | |
158 | int days, hours, minutes; | |
159 | ||
e8dcae5f KB |
160 | if (tval < 0 || tval > 365*24*60*60) { |
161 | (void)sprintf(resbuf, " %s ??:??", updown); | |
162 | return(resbuf); | |
be0e2d23 | 163 | } |
e8dcae5f | 164 | minutes = (tval + 59) / 60; /* round to minutes */ |
be0e2d23 BJ |
165 | hours = minutes / 60; minutes %= 60; |
166 | days = hours / 24; hours %= 24; | |
167 | if (days) | |
e8dcae5f | 168 | (void)sprintf(resbuf, "%s %2d+%02d:%02d", |
be0e2d23 BJ |
169 | updown, days, hours, minutes); |
170 | else | |
e8dcae5f | 171 | (void)sprintf(resbuf, "%s %2d:%02d", |
be0e2d23 | 172 | updown, hours, minutes); |
e8dcae5f | 173 | return(resbuf); |
be0e2d23 BJ |
174 | } |
175 | ||
176 | hscmp(h1, h2) | |
177 | struct hs *h1, *h2; | |
178 | { | |
e8dcae5f | 179 | return(rflg * strcmp(h1->hs_wd->wd_hostname, h2->hs_wd->wd_hostname)); |
be0e2d23 | 180 | } |
508c25be EC |
181 | |
182 | /* | |
183 | * Compare according to load average. | |
184 | */ | |
185 | lcmp(h1, h2) | |
186 | struct hs *h1, *h2; | |
187 | { | |
508c25be EC |
188 | if (down(h1)) |
189 | if (down(h2)) | |
e8dcae5f | 190 | return(tcmp(h1, h2)); |
508c25be | 191 | else |
e8dcae5f | 192 | return(rflg); |
508c25be | 193 | else if (down(h2)) |
e8dcae5f | 194 | return(-rflg); |
508c25be | 195 | else |
e8dcae5f | 196 | return(rflg * |
44bbb118 | 197 | (h2->hs_wd->wd_loadav[0] - h1->hs_wd->wd_loadav[0])); |
508c25be EC |
198 | } |
199 | ||
200 | /* | |
201 | * Compare according to number of users. | |
202 | */ | |
203 | ucmp(h1, h2) | |
204 | struct hs *h1, *h2; | |
205 | { | |
508c25be EC |
206 | if (down(h1)) |
207 | if (down(h2)) | |
e8dcae5f | 208 | return(tcmp(h1, h2)); |
508c25be | 209 | else |
e8dcae5f | 210 | return(rflg); |
508c25be | 211 | else if (down(h2)) |
e8dcae5f | 212 | return(-rflg); |
508c25be | 213 | else |
e8dcae5f | 214 | return(rflg * (h2->hs_nusers - h1->hs_nusers)); |
508c25be EC |
215 | } |
216 | ||
217 | /* | |
218 | * Compare according to uptime. | |
219 | */ | |
220 | tcmp(h1, h2) | |
221 | struct hs *h1, *h2; | |
222 | { | |
e8dcae5f | 223 | return(rflg * ( |
508c25be | 224 | (down(h2) ? h2->hs_wd->wd_recvtime - now |
de3b21e8 | 225 | : h2->hs_wd->wd_sendtime - h2->hs_wd->wd_boottime) |
508c25be EC |
226 | - |
227 | (down(h1) ? h1->hs_wd->wd_recvtime - now | |
de3b21e8 | 228 | : h1->hs_wd->wd_sendtime - h1->hs_wd->wd_boottime) |
44bbb118 | 229 | )); |
508c25be | 230 | } |