1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 #pragma ident "%Z%%M% %I% %E% SMI"
41
42 #include <sys/param.h>
43
44 #include <dirent.h>
45 #include <fcntl.h>
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <strings.h>
49 #include <time.h>
50 #include <unistd.h>
51
52 #include <protocols/rwhod.h>
53
54 static DIR *dirp;
55
56 static struct whod wd;
57 #define NUSERS 1000
58 static struct myutmp {
59 char myhost[32];
60 int myidle;
61 struct outmp myutmp;
62 } myutmp[NUSERS];
63 static int utmpcmp(const void *, const void *);
64 static int nusers;
65
66 #define WHDRSIZE (sizeof (wd) - sizeof (wd.wd_we))
67 #define RWHODIR "/var/spool/rwho"
68 /*
69 * this macro should be shared with ruptime.
70 */
71 #define down(w, now) ((now) - (w)->wd_recvtime > 11 * 60)
72
73 static time_t now;
74 static int aflg = 0;
75
76 int
77 main(int argc, char **argv)
78 {
79 struct dirent *dp;
80 int cc, width;
81 register struct whod *w = &wd;
82 register struct whoent *we;
83 register struct myutmp *mp;
84 int f, n, i;
85
86 argc--, argv++;
87 again:
88 if (argc > 0 && strcmp(argv[0], "-a") == 0) {
89 argc--, argv++;
90 aflg++;
91 goto again;
92 }
93 (void) time(&now);
94 if (chdir(RWHODIR) < 0) {
95 perror(RWHODIR);
96 return (EXIT_FAILURE);
97 }
98 dirp = opendir(".");
99 if (dirp == NULL) {
100 perror(RWHODIR);
101 return (EXIT_FAILURE);
102 }
103 mp = myutmp;
104 while (dp = readdir(dirp)) {
105 if (dp->d_ino == 0)
106 continue;
107 if (strncmp(dp->d_name, "whod.", 5))
108 continue;
109 f = open(dp->d_name, 0);
110 if (f < 0)
111 continue;
112 cc = read(f, (char *)&wd, sizeof (struct whod));
113 if (cc < WHDRSIZE) {
114 (void) close(f);
115 continue;
116 }
117 if (down(w, now)) {
118 (void) close(f);
119 continue;
120 }
121 cc -= WHDRSIZE;
122 we = w->wd_we;
123 for (n = cc / sizeof (struct whoent); n > 0; n--) {
124 if (aflg == 0 && we->we_idle >= 60*60) {
125 we++;
126 continue;
127 }
128 if (nusers >= NUSERS) {
129 (void) printf("too many users\n");
130 return (EXIT_FAILURE);
131 }
132 mp->myutmp = we->we_utmp; mp->myidle = we->we_idle;
133 (void) strncpy(mp->myhost, w->wd_hostname,
134 sizeof (mp->myhost));
135 nusers++; we++; mp++;
136 }
137 (void) close(f);
138 }
139 qsort((char *)myutmp, nusers, sizeof (struct myutmp), utmpcmp);
140 mp = myutmp;
141 width = 0;
142 for (i = 0; i < nusers; i++) {
143 int j = strlen(mp->myhost) + 1 + strlen(mp->myutmp.out_line);
144 if (j > width)
145 width = j;
146 mp++;
147 }
148 mp = myutmp;
149 for (i = 0; i < nusers; i++) {
150 char buf[BUFSIZ];
151 (void) snprintf(buf, BUFSIZ, "%.*s:%.*s",
152 sizeof (mp->myhost), mp->myhost,
153 sizeof (mp->myutmp.out_line), mp->myutmp.out_line);
154 (void) printf("%-8.*s %-*s %.12s",
155 sizeof (mp->myutmp.out_name), mp->myutmp.out_name,
156 width, buf,
157 ctime((time_t *)&mp->myutmp.out_time) + 4);
158 mp->myidle /= 60;
159 if (mp->myidle) {
160 if (aflg) {
161 if (mp->myidle >= 100*60)
162 mp->myidle = 100*60 - 1;
163 if (mp->myidle >= 60)
164 (void) printf(" %2d", mp->myidle / 60);
165 else
166 (void) fputs(" ", stdout);
167 } else
168 (void) printf(" ");
169 (void) printf(":%02d", mp->myidle % 60);
170 }
171 (void) puts("");
172 mp++;
173 }
174 return (EXIT_SUCCESS);
175 }
176
177 static int
178 utmpcmp(const void *p1, const void *p2)
179 {
180 const struct myutmp *u1 = p1, *u2 = p2;
181 int rc;
182
183 rc = strncmp(u1->myutmp.out_name, u2->myutmp.out_name,
184 sizeof (u1->myutmp.out_name));
185 if (rc != 0)
186 return (rc);
187 rc = strncmp(u1->myhost, u2->myhost, sizeof (u1->myhost));
188 if (rc != 0)
189 return (rc);
190 return (strncmp(u1->myutmp.out_line, u2->myutmp.out_line,
191 sizeof (u1->myutmp.out_line)));
192 }