mirror of
https://github.com/freebsd/freebsd-src
synced 2024-11-05 18:22:52 +00:00
1130b656e5
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
160 lines
4.1 KiB
C
160 lines
4.1 KiB
C
/*-
|
|
* Copyright (C) 1996
|
|
* David L. Nugent. 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT 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 DAVID L. NUGENT 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <stdarg.h>
|
|
#include <errno.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include "pwupd.h"
|
|
|
|
#define HAVE_PWDB_C 1
|
|
|
|
static int
|
|
pwdb(char *arg,...)
|
|
{
|
|
int i = 0;
|
|
pid_t pid;
|
|
va_list ap;
|
|
char *args[8];
|
|
|
|
args[i++] = _PATH_PWD_MKDB;
|
|
va_start(ap, arg);
|
|
while (i < 6 && arg != NULL) {
|
|
args[i++] = arg;
|
|
arg = va_arg(ap, char *);
|
|
}
|
|
args[i++] = _PATH_MASTERPASSWD;
|
|
args[i] = NULL;
|
|
|
|
if ((pid = fork()) == -1) /* Error (errno set) */
|
|
i = -1;
|
|
else if (pid == 0) { /* Child */
|
|
execv(args[0], args);
|
|
_exit(1);
|
|
} else { /* Parent */
|
|
waitpid(pid, &i, 0);
|
|
if ((i = WEXITSTATUS(i)) != 0)
|
|
errno = EIO; /* set SOMETHING */
|
|
}
|
|
return i;
|
|
}
|
|
|
|
int
|
|
fmtpwentry(char *buf, struct passwd * pwd, int type)
|
|
{
|
|
int l;
|
|
char *pw;
|
|
|
|
pw = (pwd->pw_passwd == NULL || !*pwd->pw_passwd) ? "" : (type == PWF_MASTER) ? pwd->pw_passwd : "*";
|
|
|
|
if (type == PWF_PASSWD)
|
|
l = sprintf(buf, "%s:*:%ld:%ld:%s:%s:%s\n",
|
|
pwd->pw_name, (long) pwd->pw_uid, (long) pwd->pw_gid,
|
|
pwd->pw_gecos ? pwd->pw_gecos : "User &",
|
|
pwd->pw_dir, pwd->pw_shell);
|
|
else
|
|
l = sprintf(buf, "%s:%s:%ld:%ld:%s:%lu:%lu:%s:%s:%s\n",
|
|
pwd->pw_name, pw, (long) pwd->pw_uid, (long) pwd->pw_gid,
|
|
pwd->pw_class ? pwd->pw_class : "",
|
|
(unsigned long) pwd->pw_change,
|
|
(unsigned long) pwd->pw_expire,
|
|
pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell);
|
|
return l;
|
|
}
|
|
|
|
|
|
int
|
|
fmtpwent(char *buf, struct passwd * pwd)
|
|
{
|
|
return fmtpwentry(buf, pwd, PWF_STANDARD);
|
|
}
|
|
|
|
static int
|
|
pw_update(struct passwd * pwd, char const * user, int mode)
|
|
{
|
|
int rc = 0;
|
|
|
|
endpwent();
|
|
|
|
/*
|
|
* First, let's check the see if the database is alright
|
|
* Note: -c is only available in FreeBSD 2.2 and above
|
|
*/
|
|
#ifdef HAVE_PWDB_C
|
|
if (pwdb("-c", NULL) == 0) { /* Check only */
|
|
#else
|
|
{ /* No -c */
|
|
#endif
|
|
char pfx[32];
|
|
char pwbuf[PWBUFSZ];
|
|
int l = sprintf(pfx, "%s:", user);
|
|
|
|
/*
|
|
* Update the passwd file first
|
|
*/
|
|
if (pwd == NULL)
|
|
*pwbuf = '\0';
|
|
else
|
|
fmtpwentry(pwbuf, pwd, PWF_PASSWD);
|
|
if ((rc = fileupdate(_PATH_PASSWD, 0644, pwbuf, pfx, l, mode)) != 0) {
|
|
|
|
/*
|
|
* Then the master.passwd file
|
|
*/
|
|
if (pwd != NULL)
|
|
fmtpwentry(pwbuf, pwd, PWF_MASTER);
|
|
if ((rc = fileupdate(_PATH_MASTERPASSWD, 0644, pwbuf, pfx, l, mode)) != 0)
|
|
rc = pwdb(NULL) == 0;
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
addpwent(struct passwd * pwd)
|
|
{
|
|
return pw_update(pwd, pwd->pw_name, UPD_CREATE);
|
|
}
|
|
|
|
int
|
|
chgpwent(char const * login, struct passwd * pwd)
|
|
{
|
|
return pw_update(pwd, login, UPD_REPLACE);
|
|
}
|
|
|
|
int
|
|
delpwent(struct passwd * pwd)
|
|
{
|
|
return pw_update(NULL, pwd->pw_name, UPD_DELETE);
|
|
}
|