Commit | Line | Data |
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22e155fc | 1 | /* |
38c299b1 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[] = | |
38c299b1 | 20 | "@(#) Copyright (c) 1983 The Regents of the University of California.\n\ |
22e155fc | 21 | All rights reserved.\n"; |
38c299b1 | 22 | #endif /* not lint */ |
22e155fc | 23 | |
2b2bf619 | 24 | #ifndef lint |
435e8dff | 25 | static char sccsid[] = "@(#)rwho.c 5.4 (Berkeley) %G%"; |
38c299b1 | 26 | #endif /* not lint */ |
2b2bf619 | 27 | |
ed0072ae | 28 | #include <sys/param.h> |
7123e2dc | 29 | #include <sys/dir.h> |
38c299b1 | 30 | #include <sys/file.h> |
5a7285fa | 31 | #include <protocols/rwhod.h> |
38c299b1 | 32 | #include <stdio.h> |
2b2bf619 | 33 | |
49722e0d | 34 | DIR *dirp; |
2b2bf619 BJ |
35 | |
36 | struct whod wd; | |
37 | int utmpcmp(); | |
38 | #define NUSERS 1000 | |
39 | struct myutmp { | |
38c299b1 | 40 | char myhost[MAXHOSTNAMELEN]; |
2b2bf619 | 41 | int myidle; |
26bcbdcb | 42 | struct outmp myutmp; |
2b2bf619 BJ |
43 | } myutmp[NUSERS]; |
44 | int nusers; | |
45 | ||
46 | #define WHDRSIZE (sizeof (wd) - sizeof (wd.wd_we)) | |
5b93ecb3 MK |
47 | /* |
48 | * this macro should be shared with ruptime. | |
49 | */ | |
50 | #define down(w,now) ((now) - (w)->wd_recvtime > 11 * 60) | |
2b2bf619 BJ |
51 | |
52 | char *ctime(), *strcpy(); | |
38c299b1 | 53 | time_t now; |
2b2bf619 BJ |
54 | int aflg; |
55 | ||
56 | main(argc, argv) | |
57 | int argc; | |
58 | char **argv; | |
59 | { | |
38c299b1 KB |
60 | extern char *optarg; |
61 | extern int optind; | |
62 | int ch; | |
2b2bf619 BJ |
63 | struct direct *dp; |
64 | int cc, width; | |
65 | register struct whod *w = &wd; | |
66 | register struct whoent *we; | |
67 | register struct myutmp *mp; | |
68 | int f, n, i; | |
38c299b1 | 69 | time_t time(); |
2b2bf619 | 70 | |
38c299b1 KB |
71 | while ((ch = getopt(argc, argv, "a")) != EOF) |
72 | switch((char)ch) { | |
73 | case 'a': | |
74 | aflg = 1; | |
75 | break; | |
76 | case '?': | |
77 | default: | |
78 | fprintf(stderr, "usage: rwho [-a]\n"); | |
79 | exit(1); | |
80 | } | |
435e8dff KB |
81 | if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL) { |
82 | perror(_PATH_RWHODIR); | |
2b2bf619 BJ |
83 | exit(1); |
84 | } | |
85 | mp = myutmp; | |
38c299b1 | 86 | (void)time(&now); |
49722e0d | 87 | while (dp = readdir(dirp)) { |
38c299b1 | 88 | if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5)) |
2b2bf619 | 89 | continue; |
38c299b1 | 90 | f = open(dp->d_name, O_RDONLY); |
2b2bf619 BJ |
91 | if (f < 0) |
92 | continue; | |
93 | cc = read(f, (char *)&wd, sizeof (struct whod)); | |
94 | if (cc < WHDRSIZE) { | |
95 | (void) close(f); | |
96 | continue; | |
97 | } | |
5b93ecb3 | 98 | if (down(w,now)) { |
2b2bf619 BJ |
99 | (void) close(f); |
100 | continue; | |
101 | } | |
102 | cc -= WHDRSIZE; | |
103 | we = w->wd_we; | |
104 | for (n = cc / sizeof (struct whoent); n > 0; n--) { | |
105 | if (aflg == 0 && we->we_idle >= 60*60) { | |
106 | we++; | |
107 | continue; | |
108 | } | |
109 | if (nusers >= NUSERS) { | |
110 | printf("too many users\n"); | |
111 | exit(1); | |
112 | } | |
113 | mp->myutmp = we->we_utmp; mp->myidle = we->we_idle; | |
114 | (void) strcpy(mp->myhost, w->wd_hostname); | |
115 | nusers++; we++; mp++; | |
116 | } | |
117 | (void) close(f); | |
118 | } | |
119 | qsort((char *)myutmp, nusers, sizeof (struct myutmp), utmpcmp); | |
120 | mp = myutmp; | |
121 | width = 0; | |
122 | for (i = 0; i < nusers; i++) { | |
26bcbdcb | 123 | int j = strlen(mp->myhost) + 1 + strlen(mp->myutmp.out_line); |
2b2bf619 BJ |
124 | if (j > width) |
125 | width = j; | |
126 | mp++; | |
127 | } | |
128 | mp = myutmp; | |
129 | for (i = 0; i < nusers; i++) { | |
2269668b | 130 | char buf[BUFSIZ]; |
5b93ecb3 | 131 | (void)sprintf(buf, "%s:%s", mp->myhost, mp->myutmp.out_line); |
2b2bf619 | 132 | printf("%-8.8s %-*s %.12s", |
26bcbdcb | 133 | mp->myutmp.out_name, |
2b2bf619 BJ |
134 | width, |
135 | buf, | |
26bcbdcb | 136 | ctime((time_t *)&mp->myutmp.out_time)+4); |
2b2bf619 BJ |
137 | mp->myidle /= 60; |
138 | if (mp->myidle) { | |
139 | if (aflg) { | |
140 | if (mp->myidle >= 100*60) | |
141 | mp->myidle = 100*60 - 1; | |
142 | if (mp->myidle >= 60) | |
143 | printf(" %2d", mp->myidle / 60); | |
144 | else | |
145 | printf(" "); | |
146 | } else | |
147 | printf(" "); | |
148 | printf(":%02d", mp->myidle % 60); | |
149 | } | |
150 | printf("\n"); | |
151 | mp++; | |
152 | } | |
153 | exit(0); | |
154 | } | |
155 | ||
156 | utmpcmp(u1, u2) | |
157 | struct myutmp *u1, *u2; | |
158 | { | |
159 | int rc; | |
160 | ||
26bcbdcb | 161 | rc = strncmp(u1->myutmp.out_name, u2->myutmp.out_name, 8); |
2b2bf619 BJ |
162 | if (rc) |
163 | return (rc); | |
164 | rc = strncmp(u1->myhost, u2->myhost, 8); | |
165 | if (rc) | |
166 | return (rc); | |
26bcbdcb | 167 | return (strncmp(u1->myutmp.out_line, u2->myutmp.out_line, 8)); |
2b2bf619 | 168 | } |