419 lines
9.4 KiB
C
419 lines
9.4 KiB
C
/*
|
|
* Copyright (c) 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)util.c 8.3 (Berkeley) 4/28/95";
|
|
#else
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <db.h>
|
|
#include <err.h>
|
|
#include <pwd.h>
|
|
#include <utmp.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <paths.h>
|
|
#include <errno.h>
|
|
#include "finger.h"
|
|
|
|
static void find_idle_and_ttywrite __P((WHERE *));
|
|
static void userinfo __P((PERSON *, struct passwd *));
|
|
static WHERE *walloc __P((PERSON *));
|
|
|
|
int
|
|
match(pw, user)
|
|
struct passwd *pw;
|
|
char *user;
|
|
{
|
|
register char *p, *t;
|
|
char name[1024];
|
|
|
|
if (!strcasecmp(pw->pw_name, user))
|
|
return(1);
|
|
|
|
/*
|
|
* XXX
|
|
* Why do we skip asterisks!?!?
|
|
*/
|
|
(void)strncpy(p = tbuf, pw->pw_gecos, sizeof(tbuf));
|
|
tbuf[sizeof(tbuf) - 1] = '\0';
|
|
if (*p == '*')
|
|
++p;
|
|
|
|
/* Ampersands get replaced by the login name. */
|
|
if ((p = strtok(p, ",")) == NULL)
|
|
return(0);
|
|
|
|
for (t = name; t < &name[sizeof(name) - 1] && (*t = *p) != '\0'; ++p) {
|
|
if (*t == '&') {
|
|
(void)strncpy(t, pw->pw_name,
|
|
sizeof(name) - (t - name));
|
|
name[sizeof(name) - 1] = '\0';
|
|
while (t < &name[sizeof(name) - 1] && *++t)
|
|
continue;
|
|
} else {
|
|
++t;
|
|
}
|
|
}
|
|
*t = '\0';
|
|
for (t = name; (p = strtok(t, "\t ")) != NULL; t = NULL)
|
|
if (!strcasecmp(p, user))
|
|
return(1);
|
|
return(0);
|
|
}
|
|
|
|
void
|
|
enter_lastlog(pn)
|
|
register PERSON *pn;
|
|
{
|
|
register WHERE *w;
|
|
static int opened, fd;
|
|
struct lastlog ll;
|
|
char doit = 0;
|
|
|
|
/* some systems may not maintain lastlog, don't report errors. */
|
|
if (!opened) {
|
|
fd = open(_PATH_LASTLOG, O_RDONLY, 0);
|
|
opened = 1;
|
|
}
|
|
if (fd == -1 ||
|
|
lseek(fd, (long)pn->uid * sizeof(ll), SEEK_SET) !=
|
|
(long)pn->uid * sizeof(ll) ||
|
|
read(fd, (char *)&ll, sizeof(ll)) != sizeof(ll)) {
|
|
/* as if never logged in */
|
|
ll.ll_line[0] = ll.ll_host[0] = '\0';
|
|
ll.ll_time = 0;
|
|
}
|
|
if ((w = pn->whead) == NULL)
|
|
doit = 1;
|
|
else if (ll.ll_time != 0) {
|
|
/* if last login is earlier than some current login */
|
|
for (; !doit && w != NULL; w = w->next)
|
|
if (w->info == LOGGEDIN && w->loginat < ll.ll_time)
|
|
doit = 1;
|
|
/*
|
|
* and if it's not any of the current logins
|
|
* can't use time comparison because there may be a small
|
|
* discrepency since login calls time() twice
|
|
*/
|
|
for (w = pn->whead; doit && w != NULL; w = w->next)
|
|
if (w->info == LOGGEDIN &&
|
|
strncmp(w->tty, ll.ll_line, UT_LINESIZE) == 0)
|
|
doit = 0;
|
|
}
|
|
if (doit) {
|
|
w = walloc(pn);
|
|
w->info = LASTLOG;
|
|
bcopy(ll.ll_line, w->tty, UT_LINESIZE);
|
|
w->tty[UT_LINESIZE] = 0;
|
|
bcopy(ll.ll_host, w->host, UT_HOSTSIZE);
|
|
w->host[UT_HOSTSIZE] = 0;
|
|
w->loginat = ll.ll_time;
|
|
}
|
|
}
|
|
|
|
void
|
|
enter_where(ut, pn)
|
|
struct utmp *ut;
|
|
PERSON *pn;
|
|
{
|
|
register WHERE *w;
|
|
|
|
w = walloc(pn);
|
|
w->info = LOGGEDIN;
|
|
bcopy(ut->ut_line, w->tty, UT_LINESIZE);
|
|
w->tty[UT_LINESIZE] = 0;
|
|
bcopy(ut->ut_host, w->host, UT_HOSTSIZE);
|
|
w->host[UT_HOSTSIZE] = 0;
|
|
w->loginat = (time_t)ut->ut_time;
|
|
find_idle_and_ttywrite(w);
|
|
}
|
|
|
|
PERSON *
|
|
enter_person(pw)
|
|
register struct passwd *pw;
|
|
{
|
|
DBT data, key;
|
|
PERSON *pn;
|
|
|
|
if (db == NULL &&
|
|
(db = dbopen(NULL, O_RDWR, 0, DB_BTREE, NULL)) == NULL)
|
|
err(1, NULL);
|
|
|
|
key.data = pw->pw_name;
|
|
key.size = strlen(pw->pw_name);
|
|
|
|
switch ((*db->get)(db, &key, &data, 0)) {
|
|
case 0:
|
|
memmove(&pn, data.data, sizeof pn);
|
|
return (pn);
|
|
default:
|
|
case -1:
|
|
err(1, "db get");
|
|
/* NOTREACHED */
|
|
case 1:
|
|
++entries;
|
|
pn = palloc();
|
|
userinfo(pn, pw);
|
|
pn->whead = NULL;
|
|
|
|
data.size = sizeof(PERSON *);
|
|
data.data = &pn;
|
|
if ((*db->put)(db, &key, &data, 0))
|
|
err(1, "db put");
|
|
return (pn);
|
|
}
|
|
}
|
|
|
|
PERSON *
|
|
find_person(name)
|
|
char *name;
|
|
{
|
|
struct passwd *pw;
|
|
|
|
register int cnt;
|
|
DBT data, key;
|
|
PERSON *p;
|
|
char buf[UT_NAMESIZE + 1];
|
|
|
|
if (!db)
|
|
return(NULL);
|
|
|
|
if ((pw = getpwnam(name)) && hide(pw))
|
|
return(NULL);
|
|
|
|
/* Name may be only UT_NAMESIZE long and not NUL terminated. */
|
|
for (cnt = 0; cnt < UT_NAMESIZE && *name; ++name, ++cnt)
|
|
buf[cnt] = *name;
|
|
buf[cnt] = '\0';
|
|
key.data = buf;
|
|
key.size = cnt;
|
|
|
|
if ((*db->get)(db, &key, &data, 0))
|
|
return (NULL);
|
|
memmove(&p, data.data, sizeof p);
|
|
return (p);
|
|
}
|
|
|
|
PERSON *
|
|
palloc()
|
|
{
|
|
PERSON *p;
|
|
|
|
if ((p = malloc((u_int) sizeof(PERSON))) == NULL)
|
|
err(1, NULL);
|
|
return(p);
|
|
}
|
|
|
|
static WHERE *
|
|
walloc(pn)
|
|
register PERSON *pn;
|
|
{
|
|
register WHERE *w;
|
|
|
|
if ((w = malloc((u_int) sizeof(WHERE))) == NULL)
|
|
err(1, NULL);
|
|
if (pn->whead == NULL)
|
|
pn->whead = pn->wtail = w;
|
|
else {
|
|
pn->wtail->next = w;
|
|
pn->wtail = w;
|
|
}
|
|
w->next = NULL;
|
|
return(w);
|
|
}
|
|
|
|
char *
|
|
prphone(num)
|
|
char *num;
|
|
{
|
|
register char *p;
|
|
int len;
|
|
static char pbuf[20];
|
|
|
|
/* don't touch anything if the user has their own formatting */
|
|
for (p = num; *p; ++p)
|
|
if (!isdigit(*p))
|
|
return(num);
|
|
len = p - num;
|
|
p = pbuf;
|
|
switch(len) {
|
|
case 11: /* +0-123-456-7890 */
|
|
*p++ = '+';
|
|
*p++ = *num++;
|
|
*p++ = '-';
|
|
/* FALLTHROUGH */
|
|
case 10: /* 012-345-6789 */
|
|
*p++ = *num++;
|
|
*p++ = *num++;
|
|
*p++ = *num++;
|
|
*p++ = '-';
|
|
/* FALLTHROUGH */
|
|
case 7: /* 012-3456 */
|
|
*p++ = *num++;
|
|
*p++ = *num++;
|
|
*p++ = *num++;
|
|
break;
|
|
case 5: /* x0-1234 */
|
|
case 4: /* x1234 */
|
|
*p++ = 'x';
|
|
*p++ = *num++;
|
|
break;
|
|
default:
|
|
return(num);
|
|
}
|
|
if (len != 4) {
|
|
*p++ = '-';
|
|
*p++ = *num++;
|
|
}
|
|
*p++ = *num++;
|
|
*p++ = *num++;
|
|
*p++ = *num++;
|
|
*p = '\0';
|
|
return(pbuf);
|
|
}
|
|
|
|
static void
|
|
find_idle_and_ttywrite(w)
|
|
register WHERE *w;
|
|
{
|
|
extern time_t now;
|
|
struct stat sb;
|
|
|
|
(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", _PATH_DEV, w->tty);
|
|
if (stat(tbuf, &sb) < 0) {
|
|
warn(tbuf);
|
|
return;
|
|
}
|
|
w->idletime = now < sb.st_atime ? 0 : now - sb.st_atime;
|
|
|
|
#define TALKABLE 0220 /* tty is writable if 220 mode */
|
|
w->writable = ((sb.st_mode & TALKABLE) == TALKABLE);
|
|
}
|
|
|
|
static void
|
|
userinfo(pn, pw)
|
|
register PERSON *pn;
|
|
register struct passwd *pw;
|
|
{
|
|
register char *p, *t;
|
|
char *bp, name[1024];
|
|
struct stat sb;
|
|
|
|
pn->realname = pn->office = pn->officephone = pn->homephone = NULL;
|
|
|
|
pn->uid = pw->pw_uid;
|
|
pn->name = strdup(pw->pw_name);
|
|
pn->dir = strdup(pw->pw_dir);
|
|
pn->shell = strdup(pw->pw_shell);
|
|
|
|
/* why do we skip asterisks!?!? */
|
|
(void)strncpy(bp = tbuf, pw->pw_gecos, sizeof(tbuf));
|
|
tbuf[sizeof(tbuf) - 1] = '\0';
|
|
if (*bp == '*')
|
|
++bp;
|
|
|
|
/* ampersands get replaced by the login name */
|
|
if (!(p = strsep(&bp, ",")))
|
|
return;
|
|
for (t = name; t < &name[sizeof(name) - 1] && (*t = *p) != '\0'; ++p) {
|
|
if (*t == '&') {
|
|
(void)strncpy(t, pw->pw_name,
|
|
sizeof(name) - (t - name));
|
|
name[sizeof(name) - 1] = '\0';
|
|
if (islower(*t))
|
|
*t = toupper(*t);
|
|
while (t < &name[sizeof(name) - 1] && *++t)
|
|
continue;
|
|
} else {
|
|
++t;
|
|
}
|
|
}
|
|
*t = '\0';
|
|
pn->realname = strdup(name);
|
|
pn->office = ((p = strsep(&bp, ",")) && *p) ?
|
|
strdup(p) : NULL;
|
|
pn->officephone = ((p = strsep(&bp, ",")) && *p) ?
|
|
strdup(p) : NULL;
|
|
pn->homephone = ((p = strsep(&bp, ",")) && *p) ?
|
|
strdup(p) : NULL;
|
|
(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", _PATH_MAILDIR, pw->pw_name);
|
|
pn->mailrecv = -1; /* -1 == not_valid */
|
|
if (stat(tbuf, &sb) < 0) {
|
|
if (errno != ENOENT) {
|
|
warn("%s", tbuf);
|
|
return;
|
|
}
|
|
} else if (sb.st_size != 0) {
|
|
pn->mailrecv = sb.st_mtime;
|
|
pn->mailread = sb.st_atime;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Is this user hiding from finger?
|
|
* If ~<user>/.nofinger exists, return 1 (hide), else return 0 (nohide).
|
|
*/
|
|
|
|
int
|
|
hide(pw)
|
|
struct passwd *pw;
|
|
{
|
|
char buf[MAXPATHLEN+1];
|
|
|
|
if (!pw->pw_dir)
|
|
return 0;
|
|
|
|
snprintf(buf, sizeof(buf), "%s/.nofinger", pw->pw_dir);
|
|
buf[sizeof(buf) - 1] = '\0';
|
|
|
|
if (access(buf, F_OK) == 0)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|