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 #include <sys/param.h>
41
42 #include <dirent.h>
43 #include <fcntl.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <strings.h>
47 #include <time.h>
48 #include <unistd.h>
49
50 #include <protocols/rwhod.h>
51
52 static DIR *dirp;
53
54 static struct whod wd;
55 #define NUSERS 1000
56 static struct myutmp {
57 char myhost[32];
58 int myidle;
59 struct outmp myutmp;
60 } myutmp[NUSERS];
61 static int utmpcmp(const void *, const void *);
62 static int nusers;
63
64 #define WHDRSIZE (sizeof (wd) - sizeof (wd.wd_we))
65 #define RWHODIR "/var/spool/rwho"
66 /*
67 * this macro should be shared with ruptime.
68 */
69 #define down(w, now) ((now) - (w)->wd_recvtime > 11 * 60)
70
71 static time_t now;
72 static int aflg = 0;
73
74 int
main(int argc,char ** argv)75 main(int argc, char **argv)
76 {
77 struct dirent *dp;
78 int cc, width;
79 register struct whod *w = &wd;
80 register struct whoent *we;
81 register struct myutmp *mp;
82 int f, n, i;
83
84 argc--, argv++;
85 again:
86 if (argc > 0 && strcmp(argv[0], "-a") == 0) {
87 argc--, argv++;
88 aflg++;
89 goto again;
90 }
91 (void) time(&now);
92 if (chdir(RWHODIR) < 0) {
93 perror(RWHODIR);
94 return (EXIT_FAILURE);
95 }
96 dirp = opendir(".");
97 if (dirp == NULL) {
98 perror(RWHODIR);
99 return (EXIT_FAILURE);
100 }
101 mp = myutmp;
102 while (dp = readdir(dirp)) {
103 if (dp->d_ino == 0)
104 continue;
105 if (strncmp(dp->d_name, "whod.", 5))
106 continue;
107 f = open(dp->d_name, 0);
108 if (f < 0)
109 continue;
110 cc = read(f, (char *)&wd, sizeof (struct whod));
111 if (cc < WHDRSIZE) {
112 (void) close(f);
113 continue;
114 }
115 if (down(w, now)) {
116 (void) close(f);
117 continue;
118 }
119 cc -= WHDRSIZE;
120 we = w->wd_we;
121 for (n = cc / sizeof (struct whoent); n > 0; n--) {
122 if (aflg == 0 && we->we_idle >= 60*60) {
123 we++;
124 continue;
125 }
126 if (nusers >= NUSERS) {
127 (void) printf("too many users\n");
128 return (EXIT_FAILURE);
129 }
130 mp->myutmp = we->we_utmp; mp->myidle = we->we_idle;
131 (void) strncpy(mp->myhost, w->wd_hostname,
132 sizeof (mp->myhost));
133 nusers++; we++; mp++;
134 }
135 (void) close(f);
136 }
137 qsort((char *)myutmp, nusers, sizeof (struct myutmp), utmpcmp);
138 mp = myutmp;
139 width = 0;
140 for (i = 0; i < nusers; i++) {
141 int j = strlen(mp->myhost) + 1 + strlen(mp->myutmp.out_line);
142 if (j > width)
143 width = j;
144 mp++;
145 }
146 mp = myutmp;
147 for (i = 0; i < nusers; i++) {
148 char buf[BUFSIZ];
149 (void) snprintf(buf, BUFSIZ, "%.*s:%.*s",
150 sizeof (mp->myhost), mp->myhost,
151 sizeof (mp->myutmp.out_line), mp->myutmp.out_line);
152 (void) printf("%-8.*s %-*s %.12s",
153 sizeof (mp->myutmp.out_name), mp->myutmp.out_name,
154 width, buf,
155 ctime((time_t *)&mp->myutmp.out_time) + 4);
156 mp->myidle /= 60;
157 if (mp->myidle) {
158 if (aflg) {
159 if (mp->myidle >= 100*60)
160 mp->myidle = 100*60 - 1;
161 if (mp->myidle >= 60)
162 (void) printf(" %2d", mp->myidle / 60);
163 else
164 (void) fputs(" ", stdout);
165 } else
166 (void) printf(" ");
167 (void) printf(":%02d", mp->myidle % 60);
168 }
169 (void) puts("");
170 mp++;
171 }
172 return (EXIT_SUCCESS);
173 }
174
175 static int
utmpcmp(const void * p1,const void * p2)176 utmpcmp(const void *p1, const void *p2)
177 {
178 const struct myutmp *u1 = p1, *u2 = p2;
179 int rc;
180
181 rc = strncmp(u1->myutmp.out_name, u2->myutmp.out_name,
182 sizeof (u1->myutmp.out_name));
183 if (rc != 0)
184 return (rc);
185 rc = strncmp(u1->myhost, u2->myhost, sizeof (u1->myhost));
186 if (rc != 0)
187 return (rc);
188 return (strncmp(u1->myutmp.out_line, u2->myutmp.out_line,
189 sizeof (u1->myutmp.out_line)));
190 }
191