2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 static const char copyright[] =
32 "@(#) Copyright (c) 1983, 1993\n\
33 The Regents of the University of California. All rights reserved.\n";
38 static char sccsid[] = "@(#)rwho.c 8.1 (Berkeley) 6/6/93";
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD$");
45 #include <sys/param.h>
48 #include <protocols/rwhod.h>
66 char myhost[sizeof(wd.wd_hostname)];
72 #define WHDRSIZE (ssize_t)(sizeof (wd) - sizeof (wd.wd_we))
74 * this macro should be shared with ruptime.
76 #define down(w,now) ((now) - (w)->wd_recvtime > 11 * 60)
81 static void usage(void);
82 int utmpcmp(const void *, const void *);
85 main(int argc, char *argv[])
91 register struct whod *w = &wd;
92 register struct whoent *we;
93 register struct myutmp *mp;
97 (void) setlocale(LC_TIME, "");
98 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
100 while ((ch = getopt(argc, argv, "a")) != -1)
115 if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL)
116 err(1, "%s", _PATH_RWHODIR);
119 while ((dp = readdir(dirp))) {
120 if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5))
122 f = open(dp->d_name, O_RDONLY);
125 cc = read(f, (char *)&wd, sizeof (struct whod));
136 for (n = cc / sizeof (struct whoent); n > 0; n--) {
137 if (aflg == 0 && we->we_idle >= 60*60) {
141 if (nusers >= NUSERS)
142 errx(1, "too many users");
143 mp->myutmp = we->we_utmp; mp->myidle = we->we_idle;
144 (void) strcpy(mp->myhost, w->wd_hostname);
145 nusers++; we++; mp++;
149 qsort((char *)myutmp, nusers, sizeof (struct myutmp), utmpcmp);
152 for (i = 0; i < nusers; i++) {
153 /* append one for the blank and use 8 for the out_line */
154 int j = strlen(mp->myhost) + 1 + sizeof(mp->myutmp.out_line);
160 for (i = 0; i < nusers; i++) {
161 char buf[BUFSIZ], cbuf[80];
162 time_t t = _int_to_time(mp->myutmp.out_time);
164 strftime(cbuf, sizeof(cbuf),
165 d_first ? "%e %b %R" : "%b %e %R",
167 (void)sprintf(buf, "%s:%-.*s", mp->myhost,
168 (int)sizeof(mp->myutmp.out_line), mp->myutmp.out_line);
169 printf("%-*.*s %-*s %s",
170 (int)sizeof(mp->myutmp.out_name),
171 (int)sizeof(mp->myutmp.out_name),
179 if (mp->myidle >= 100*60)
180 mp->myidle = 100*60 - 1;
181 if (mp->myidle >= 60)
182 printf(" %2d", mp->myidle / 60);
187 printf(":%02d", mp->myidle % 60);
199 fprintf(stderr, "usage: rwho [-a]\n");
203 #define MYUTMP(a) ((const struct myutmp *)(a))
206 utmpcmp(const void *u1, const void *u2)
210 rc = strncmp(MYUTMP(u1)->myutmp.out_name, MYUTMP(u2)->myutmp.out_name,
211 sizeof(MYUTMP(u2)->myutmp.out_name));
214 rc = strcmp(MYUTMP(u1)->myhost, MYUTMP(u2)->myhost);
217 return (strncmp(MYUTMP(u1)->myutmp.out_line, MYUTMP(u2)->myutmp.out_line,
218 sizeof(MYUTMP(u2)->myutmp.out_line)));