1999-02-23 07:15:11 +00:00
|
|
|
/*-
|
|
|
|
* 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.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef lint
|
|
|
|
static const char rcsid[] =
|
1999-08-28 01:35:59 +00:00
|
|
|
"$FreeBSD$";
|
1999-02-23 07:15:11 +00:00
|
|
|
#endif /* not lint */
|
|
|
|
|
2012-12-27 19:43:29 +00:00
|
|
|
#include <pwd.h>
|
|
|
|
#include <grp.h>
|
|
|
|
#include <libutil.h>
|
1999-02-23 07:15:11 +00:00
|
|
|
#include <stdio.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <stdlib.h>
|
2015-07-07 21:05:20 +00:00
|
|
|
#include <err.h>
|
1999-02-23 07:15:11 +00:00
|
|
|
|
|
|
|
#include "pwupd.h"
|
|
|
|
|
|
|
|
static FILE * pwd_fp = NULL;
|
|
|
|
|
|
|
|
void
|
|
|
|
vendpwent(void)
|
|
|
|
{
|
|
|
|
if (pwd_fp != NULL) {
|
|
|
|
fclose(pwd_fp);
|
|
|
|
pwd_fp = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
vsetpwent(void)
|
|
|
|
{
|
|
|
|
vendpwent();
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct passwd *
|
2012-12-27 19:43:29 +00:00
|
|
|
vnextpwent(char const *nam, uid_t uid, int doclose)
|
1999-02-23 07:15:11 +00:00
|
|
|
{
|
2012-12-27 19:43:29 +00:00
|
|
|
struct passwd *pw;
|
|
|
|
char *line;
|
|
|
|
size_t linecap;
|
|
|
|
ssize_t linelen;
|
|
|
|
|
|
|
|
pw = NULL;
|
|
|
|
line = NULL;
|
|
|
|
linecap = 0;
|
|
|
|
|
|
|
|
if (pwd_fp != NULL || (pwd_fp = fopen(getpwpath(_MASTERPASSWD), "r")) != NULL) {
|
|
|
|
while ((linelen = getline(&line, &linecap, pwd_fp)) > 0) {
|
|
|
|
/* Skip comments and empty lines */
|
|
|
|
if (*line == '\n' || *line == '#')
|
1999-02-23 07:15:11 +00:00
|
|
|
continue;
|
2012-12-27 19:43:29 +00:00
|
|
|
/* trim latest \n */
|
|
|
|
if (line[linelen - 1 ] == '\n')
|
|
|
|
line[linelen - 1] = '\0';
|
|
|
|
pw = pw_scan(line, PWSCAN_MASTER);
|
2015-07-07 21:05:20 +00:00
|
|
|
if (pw == NULL)
|
|
|
|
errx(EXIT_FAILURE, "Invalid user entry in '%s':"
|
|
|
|
" '%s'", getpwpath(_MASTERPASSWD), line);
|
2012-12-27 19:43:29 +00:00
|
|
|
if (uid != (uid_t)-1) {
|
|
|
|
if (uid == pw->pw_uid)
|
|
|
|
break;
|
|
|
|
} else if (nam != NULL) {
|
|
|
|
if (strcmp(nam, pw->pw_name) == 0)
|
|
|
|
break;
|
|
|
|
} else
|
|
|
|
break;
|
|
|
|
free(pw);
|
|
|
|
pw = NULL;
|
|
|
|
}
|
1999-02-23 07:15:11 +00:00
|
|
|
if (doclose)
|
|
|
|
vendpwent();
|
2012-12-27 19:43:29 +00:00
|
|
|
}
|
|
|
|
free(line);
|
1999-02-23 07:15:11 +00:00
|
|
|
|
2012-12-27 19:43:29 +00:00
|
|
|
return (pw);
|
1999-02-23 07:15:11 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
struct passwd *
|
|
|
|
vgetpwent(void)
|
|
|
|
{
|
|
|
|
return vnextpwent(NULL, -1, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct passwd *
|
|
|
|
vgetpwuid(uid_t uid)
|
|
|
|
{
|
|
|
|
return vnextpwent(NULL, uid, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct passwd *
|
|
|
|
vgetpwnam(const char * nam)
|
|
|
|
{
|
|
|
|
return vnextpwent(nam, -1, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static FILE * grp_fp = NULL;
|
|
|
|
|
|
|
|
void
|
|
|
|
vendgrent(void)
|
|
|
|
{
|
|
|
|
if (grp_fp != NULL) {
|
|
|
|
fclose(grp_fp);
|
|
|
|
grp_fp = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-07-31 08:05:15 +00:00
|
|
|
void
|
1999-02-23 07:15:11 +00:00
|
|
|
vsetgrent(void)
|
|
|
|
{
|
|
|
|
vendgrent();
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct group *
|
2012-12-27 19:43:29 +00:00
|
|
|
vnextgrent(char const *nam, gid_t gid, int doclose)
|
1999-02-23 07:15:11 +00:00
|
|
|
{
|
2012-12-27 19:43:29 +00:00
|
|
|
struct group *gr;
|
|
|
|
char *line;
|
|
|
|
size_t linecap;
|
|
|
|
ssize_t linelen;
|
|
|
|
|
|
|
|
gr = NULL;
|
|
|
|
line = NULL;
|
|
|
|
linecap = 0;
|
|
|
|
|
|
|
|
if (grp_fp != NULL || (grp_fp = fopen(getgrpath(_GROUP), "r")) != NULL) {
|
|
|
|
while ((linelen = getline(&line, &linecap, grp_fp)) > 0) {
|
1999-02-23 07:15:11 +00:00
|
|
|
/* Skip comments and empty lines */
|
2012-12-27 19:43:29 +00:00
|
|
|
if (*line == '\n' || *line == '#')
|
1999-02-23 07:15:11 +00:00
|
|
|
continue;
|
2012-12-27 19:43:29 +00:00
|
|
|
/* trim latest \n */
|
|
|
|
if (line[linelen - 1 ] == '\n')
|
|
|
|
line[linelen - 1] = '\0';
|
|
|
|
gr = gr_scan(line);
|
2015-07-07 21:05:20 +00:00
|
|
|
if (gr == NULL)
|
|
|
|
errx(EXIT_FAILURE, "Invalid group entry in '%s':"
|
|
|
|
" '%s'", getgrpath(_GROUP), line);
|
2012-12-27 19:43:29 +00:00
|
|
|
if (gid != (gid_t)-1) {
|
|
|
|
if (gid == gr->gr_gid)
|
1999-02-23 07:15:11 +00:00
|
|
|
break;
|
2012-12-27 19:43:29 +00:00
|
|
|
} else if (nam != NULL) {
|
|
|
|
if (strcmp(nam, gr->gr_name) == 0)
|
1999-02-23 07:15:11 +00:00
|
|
|
break;
|
2012-12-27 19:43:29 +00:00
|
|
|
} else
|
|
|
|
break;
|
|
|
|
free(gr);
|
|
|
|
gr = NULL;
|
|
|
|
}
|
1999-02-23 07:15:11 +00:00
|
|
|
if (doclose)
|
|
|
|
vendgrent();
|
|
|
|
}
|
2012-12-27 19:43:29 +00:00
|
|
|
free(line);
|
|
|
|
|
|
|
|
return (gr);
|
1999-02-23 07:15:11 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
struct group *
|
|
|
|
vgetgrent(void)
|
|
|
|
{
|
|
|
|
return vnextgrent(NULL, -1, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
struct group *
|
|
|
|
vgetgrgid(gid_t gid)
|
|
|
|
{
|
|
|
|
return vnextgrent(NULL, gid, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct group *
|
|
|
|
vgetgrnam(const char * nam)
|
|
|
|
{
|
|
|
|
return vnextgrent(nam, -1, 1);
|
|
|
|
}
|
|
|
|
|