![[BACK]](/icons/back.gif){kind=icon}
Return to rwho.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / rwho|
Return to rwho.c CVS log | Up to [local] / src / usr.bin / rwho |
1.2 ! deraadt 1: /* $OpenBSD$ */
! 2:
1.1 deraadt 3: /*
4: * Copyright (c) 1983 The Regents of the University of California.
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by the University of
18: * California, Berkeley and its contributors.
19: * 4. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
36: #ifndef lint
37: char copyright[] =
38: "@(#) Copyright (c) 1983 The Regents of the University of California.\n\
39: All rights reserved.\n";
40: #endif /* not lint */
41:
42: #ifndef lint
43: /*static char sccsid[] = "from: @(#)rwho.c 5.5 (Berkeley) 6/1/90";*/
1.2 ! deraadt 44: static char rcsid[] = "$OpenBSD: rwho.c,v 1.1.1.1 1995/10/18 08:46:04 deraadt Exp $";
1.1 deraadt 45: #endif /* not lint */
46:
47: #include <sys/param.h>
48: #include <sys/file.h>
49: #include <dirent.h>
50: #include <protocols/rwhod.h>
51: #include <stdio.h>
52: #include <string.h>
53:
54: DIR *dirp;
55:
56: struct whod wd;
57: int utmpcmp();
58: #define NUSERS 1000
59: struct myutmp {
60: char myhost[MAXHOSTNAMELEN];
61: int myidle;
62: struct outmp myutmp;
63: } myutmp[NUSERS];
64: int nusers;
65:
66: #define WHDRSIZE (sizeof (wd) - sizeof (wd.wd_we))
67: /*
68: * this macro should be shared with ruptime.
69: */
70: #define down(w,now) ((now) - (w)->wd_recvtime > 11 * 60)
71:
72: char *ctime(), *strcpy();
73: time_t now;
74: int aflg;
75:
76: main(argc, argv)
77: int argc;
78: char **argv;
79: {
80: extern char *optarg;
81: extern int optind;
82: int ch;
83: struct dirent *dp;
84: int cc, width;
85: register struct whod *w = &wd;
86: register struct whoent *we;
87: register struct myutmp *mp;
88: int f, n, i;
89: time_t time();
90:
91: while ((ch = getopt(argc, argv, "a")) != EOF)
92: switch((char)ch) {
93: case 'a':
94: aflg = 1;
95: break;
96: case '?':
97: default:
98: fprintf(stderr, "usage: rwho [-a]\n");
99: exit(1);
100: }
101: if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL) {
102: perror(_PATH_RWHODIR);
103: exit(1);
104: }
105: mp = myutmp;
106: (void)time(&now);
107: while (dp = readdir(dirp)) {
108: if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5))
109: continue;
110: f = open(dp->d_name, O_RDONLY);
111: if (f < 0)
112: continue;
113: cc = read(f, (char *)&wd, sizeof (struct whod));
114: if (cc < WHDRSIZE) {
115: (void) close(f);
116: continue;
117: }
118: if (down(w,now)) {
119: (void) close(f);
120: continue;
121: }
122: cc -= WHDRSIZE;
123: we = w->wd_we;
124: for (n = cc / sizeof (struct whoent); n > 0; n--) {
125: if (aflg == 0 && we->we_idle >= 60*60) {
126: we++;
127: continue;
128: }
129: if (nusers >= NUSERS) {
130: printf("too many users\n");
131: exit(1);
132: }
133: mp->myutmp = we->we_utmp; mp->myidle = we->we_idle;
134: (void) strcpy(mp->myhost, w->wd_hostname);
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)sprintf(buf, "%s:%s", mp->myhost, mp->myutmp.out_line);
152: printf("%-8.8s %-*s %.12s",
153: mp->myutmp.out_name,
154: width,
155: buf,
156: ctime((time_t *)&mp->myutmp.out_time)+4);
157: mp->myidle /= 60;
158: if (mp->myidle) {
159: if (aflg) {
160: if (mp->myidle >= 100*60)
161: mp->myidle = 100*60 - 1;
162: if (mp->myidle >= 60)
163: printf(" %2d", mp->myidle / 60);
164: else
165: printf(" ");
166: } else
167: printf(" ");
168: printf(":%02d", mp->myidle % 60);
169: }
170: printf("\n");
171: mp++;
172: }
173: exit(0);
174: }
175:
176: utmpcmp(u1, u2)
177: struct myutmp *u1, *u2;
178: {
179: int rc;
180:
181: rc = strncmp(u1->myutmp.out_name, u2->myutmp.out_name, 8);
182: if (rc)
183: return (rc);
184: rc = strncmp(u1->myhost, u2->myhost, 8);
185: if (rc)
186: return (rc);
187: return (strncmp(u1->myutmp.out_line, u2->myutmp.out_line, 8));
188: }