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/*-
* Copyright (c) 1990, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* 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
static char sccsid[] = "@(#)pw_scan.c 8.3 (Berkeley) 4/2/94";
#endif /* not lint */
/*
* This module is used to "verify" password entries by chpass(1) and
* pwd_mkdb(8).
*/
#include <sys/param.h>
#include <err.h>
#include <fcntl.h>
#include <pwd.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "pw_scan.h"
int
pw_scan(bp, pw)
char *bp;
struct passwd *pw;
{
long id;
int root;
char *p, *sh;
if (!(pw->pw_name = strsep(&bp, ":"))) /* login */
goto fmt;
root = !strcmp(pw->pw_name, "root");
if (!(pw->pw_passwd = strsep(&bp, ":"))) /* passwd */
goto fmt;
if (!(p = strsep(&bp, ":"))) /* uid */
goto fmt;
id = atol(p);
if (root && id) {
warnx("root uid should be 0");
return (0);
}
if (id > USHRT_MAX) {
warnx("%s > max uid value (%d)", p, USHRT_MAX);
return (0);
}
pw->pw_uid = id;
if (!(p = strsep(&bp, ":"))) /* gid */
goto fmt;
id = atol(p);
if (id > USHRT_MAX) {
warnx("%s > max gid value (%d)", p, USHRT_MAX);
return (0);
}
pw->pw_gid = id;
pw->pw_class = strsep(&bp, ":"); /* class */
if (!(p = strsep(&bp, ":"))) /* change */
goto fmt;
pw->pw_change = atol(p);
if (!(p = strsep(&bp, ":"))) /* expire */
goto fmt;
pw->pw_expire = atol(p);
pw->pw_gecos = strsep(&bp, ":"); /* gecos */
pw->pw_dir = strsep(&bp, ":"); /* directory */
if (!(pw->pw_shell = strsep(&bp, ":"))) /* shell */
goto fmt;
p = pw->pw_shell;
if (root && *p) /* empty == /bin/sh */
for (setusershell();;) {
if (!(sh = getusershell())) {
warnx("warning, unknown root shell");
break;
}
if (!strcmp(p, sh))
break;
}
if (p = strsep(&bp, ":")) { /* too many */
fmt: warnx("corrupted entry");
return (0);
}
return (1);
}
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