2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 static char sccsid[] = "@(#)util.c 8.3 (Berkeley) 4/28/95";
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #include <sys/param.h>
47 #include <sys/socket.h>
62 #include "pathnames.h"
64 static void find_idle_and_ttywrite(WHERE *);
65 static void userinfo(PERSON *, struct passwd *);
66 static WHERE *walloc(PERSON *);
69 match(struct passwd *pw, const char *user)
74 if (!strcasecmp(pw->pw_name, user))
79 * Why do we skip asterisks!?!?
81 (void)strncpy(p = tbuf, pw->pw_gecos, sizeof(tbuf));
82 tbuf[sizeof(tbuf) - 1] = '\0';
86 /* Ampersands get replaced by the login name. */
87 if ((p = strtok(p, ",")) == NULL)
90 for (t = name; t < &name[sizeof(name) - 1] && (*t = *p) != '\0'; ++p) {
92 (void)strncpy(t, pw->pw_name,
93 sizeof(name) - (t - name));
94 name[sizeof(name) - 1] = '\0';
95 while (t < &name[sizeof(name) - 1] && *++t)
102 for (t = name; (p = strtok(t, "\t ")) != NULL; t = NULL)
103 if (!strcasecmp(p, user))
109 enter_lastlog(PERSON *pn)
112 struct utmpx *ut = NULL;
115 if (setutxdb(UTXDB_LASTLOGIN, NULL) == 0)
116 ut = getutxuser(pn->name);
117 if ((w = pn->whead) == NULL)
119 else if (ut != NULL && ut->ut_type == USER_PROCESS) {
120 /* if last login is earlier than some current login */
121 for (; !doit && w != NULL; w = w->next)
122 if (w->info == LOGGEDIN &&
123 w->loginat < ut->ut_tv.tv_sec)
126 * and if it's not any of the current logins
127 * can't use time comparison because there may be a small
128 * discrepancy since login calls time() twice
130 for (w = pn->whead; doit && w != NULL; w = w->next)
131 if (w->info == LOGGEDIN &&
132 strcmp(w->tty, ut->ut_line) == 0)
135 if (ut != NULL && doit) {
138 strcpy(w->tty, ut->ut_line);
139 strcpy(w->host, ut->ut_host);
140 w->loginat = ut->ut_tv.tv_sec;
146 enter_where(struct utmpx *ut, PERSON *pn)
152 strcpy(w->tty, ut->ut_line);
153 strcpy(w->host, ut->ut_host);
154 w->loginat = ut->ut_tv.tv_sec;
155 find_idle_and_ttywrite(w);
159 enter_person(struct passwd *pw)
165 (db = dbopen(NULL, O_RDWR, 0, DB_BTREE, NULL)) == NULL)
168 key.data = pw->pw_name;
169 key.size = strlen(pw->pw_name);
171 switch ((*db->get)(db, &key, &data, 0)) {
173 memmove(&pn, data.data, sizeof pn);
185 data.size = sizeof(PERSON *);
187 if ((*db->put)(db, &key, &data, 0))
194 find_person(char *name)
204 if ((pw = getpwnam(name)) && hide(pw))
208 key.size = strlen(name);
210 if ((*db->get)(db, &key, &data, 0))
212 memmove(&p, data.data, sizeof p);
221 if ((p = malloc(sizeof(PERSON))) == NULL)
231 if ((w = malloc(sizeof(WHERE))) == NULL)
233 if (pn->whead == NULL)
234 pn->whead = pn->wtail = w;
248 static char pbuf[20];
250 /* don't touch anything if the user has their own formatting */
251 for (p = num; *p; ++p)
257 case 11: /* +0-123-456-7890 */
262 case 10: /* 012-345-6789 */
268 case 7: /* 012-3456 */
273 case 5: /* x0-1234 */
293 find_idle_and_ttywrite(WHERE *w)
299 (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", _PATH_DEV, w->tty);
301 error = stat(tbuf, &sb);
302 if (error < 0 && errno == ENOENT) {
304 * The terminal listed is not actually a terminal (i.e.,
305 * ":0"). This is a failure, so we'll skip printing
306 * out the idle time, which is non-ideal but better
307 * than a bogus warning and idle time.
311 } else if (error < 0) {
316 touched = sb.st_atime;
317 if (touched < w->loginat) {
318 /* tty untouched since before login */
319 touched = w->loginat;
321 w->idletime = now < touched ? 0 : now - touched;
323 #define TALKABLE 0220 /* tty is writable if 220 mode */
324 w->writable = ((sb.st_mode & TALKABLE) == TALKABLE);
328 userinfo(PERSON *pn, struct passwd *pw)
331 char *bp, name[1024];
334 pn->realname = pn->office = pn->officephone = pn->homephone = NULL;
336 pn->uid = pw->pw_uid;
337 if ((pn->name = strdup(pw->pw_name)) == NULL)
338 err(1, "strdup failed");
339 if ((pn->dir = strdup(pw->pw_dir)) == NULL)
340 err(1, "strdup failed");
341 if ((pn->shell = strdup(pw->pw_shell)) == NULL)
342 err(1, "strdup failed");
344 /* why do we skip asterisks!?!? */
345 (void)strncpy(bp = tbuf, pw->pw_gecos, sizeof(tbuf));
346 tbuf[sizeof(tbuf) - 1] = '\0';
350 /* ampersands get replaced by the login name */
351 if (!(p = strsep(&bp, ",")))
353 for (t = name; t < &name[sizeof(name) - 1] && (*t = *p) != '\0'; ++p) {
355 (void)strncpy(t, pw->pw_name,
356 sizeof(name) - (t - name));
357 name[sizeof(name) - 1] = '\0';
360 while (t < &name[sizeof(name) - 1] && *++t)
367 if ((pn->realname = strdup(name)) == NULL)
368 err(1, "strdup failed");
369 pn->office = ((p = strsep(&bp, ",")) && *p) ?
371 pn->officephone = ((p = strsep(&bp, ",")) && *p) ?
373 pn->homephone = ((p = strsep(&bp, ",")) && *p) ?
375 (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", _PATH_MAILDIR, pw->pw_name);
376 pn->mailrecv = -1; /* -1 == not_valid */
377 if (stat(tbuf, &sb) < 0) {
378 if (errno != ENOENT) {
382 } else if (sb.st_size != 0) {
383 pn->mailrecv = sb.st_mtime;
384 pn->mailread = sb.st_atime;
389 * Is this user hiding from finger?
390 * If ~<user>/.nofinger exists, return 1 (hide), else return 0 (nohide).
391 * Nobody can hide from root.
395 hide(struct passwd *pw)
398 char buf[MAXPATHLEN];
400 if (invoker_root || !pw->pw_dir)
403 snprintf(buf, sizeof(buf), "%s/%s", pw->pw_dir, _PATH_NOFINGER);
405 if (stat(buf, &st) == 0)