317 lines
7.1 KiB
C
317 lines
7.1 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef lint
|
||
|
|
static const char rcsid[] =
|
||
|
|
"$Id$";
|
||
|
|
#endif /* not lint */
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <sys/param.h>
|
||
|
|
|
||
|
|
#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 *
|
||
|
|
vnextpwent(char const * nam, uid_t uid, int doclose)
|
||
|
|
{
|
||
|
|
struct passwd * pw = NULL;
|
||
|
|
static char pwtmp[1024];
|
||
|
|
|
||
|
|
strncpy(pwtmp, getpwpath(_MASTERPASSWD), sizeof pwtmp);
|
||
|
|
pwtmp[sizeof pwtmp - 1] = '\0';
|
||
|
|
|
||
|
|
if (pwd_fp != NULL || (pwd_fp = fopen(pwtmp, "r")) != NULL) {
|
||
|
|
int done = 0;
|
||
|
|
|
||
|
|
static struct passwd pwd;
|
||
|
|
|
||
|
|
while (!done && fgets(pwtmp, sizeof pwtmp, pwd_fp) != NULL)
|
||
|
|
{
|
||
|
|
int i, quickout = 0;
|
||
|
|
char * q;
|
||
|
|
char * p = strchr(pwtmp, '\n');
|
||
|
|
|
||
|
|
if (p == NULL) {
|
||
|
|
while (fgets(pwtmp, sizeof pwtmp, pwd_fp) != NULL && strchr(pwtmp, '\n')==NULL)
|
||
|
|
; /* Skip long lines */
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* skip comments & empty lines */
|
||
|
|
if (*pwtmp =='\n' || *pwtmp == '#')
|
||
|
|
continue;
|
||
|
|
|
||
|
|
i = 0;
|
||
|
|
q = p = pwtmp;
|
||
|
|
bzero(&pwd, sizeof pwd);
|
||
|
|
while (!quickout && (p = strsep(&q, ":\n")) != NULL) {
|
||
|
|
switch (i++)
|
||
|
|
{
|
||
|
|
case 0: /* username */
|
||
|
|
pwd.pw_name = p;
|
||
|
|
if (nam) {
|
||
|
|
if (strcmp(nam, p) == 0)
|
||
|
|
done = 1;
|
||
|
|
else
|
||
|
|
quickout = 1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 1: /* password */
|
||
|
|
pwd.pw_passwd = p;
|
||
|
|
break;
|
||
|
|
case 2: /* uid */
|
||
|
|
pwd.pw_uid = atoi(p);
|
||
|
|
if (uid != (uid_t)-1) {
|
||
|
|
if (uid == pwd.pw_uid)
|
||
|
|
done = 1;
|
||
|
|
else
|
||
|
|
quickout = 1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 3: /* gid */
|
||
|
|
pwd.pw_gid = atoi(p);
|
||
|
|
break;
|
||
|
|
case 4: /* class */
|
||
|
|
if (nam == NULL && uid == (uid_t)-1)
|
||
|
|
done = 1;
|
||
|
|
pwd.pw_class = p;
|
||
|
|
break;
|
||
|
|
case 5: /* change */
|
||
|
|
pwd.pw_change = (time_t)atol(p);
|
||
|
|
break;
|
||
|
|
case 6: /* expire */
|
||
|
|
pwd.pw_expire = (time_t)atol(p);
|
||
|
|
break;
|
||
|
|
case 7: /* gecos */
|
||
|
|
pwd.pw_gecos = p;
|
||
|
|
break;
|
||
|
|
case 8: /* directory */
|
||
|
|
pwd.pw_dir = p;
|
||
|
|
break;
|
||
|
|
case 9: /* shell */
|
||
|
|
pwd.pw_shell = p;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (doclose)
|
||
|
|
vendpwent();
|
||
|
|
if (done && pwd.pw_name) {
|
||
|
|
pw = &pwd;
|
||
|
|
|
||
|
|
#define CKNULL(s) s = s ? s : ""
|
||
|
|
CKNULL(pwd.pw_passwd);
|
||
|
|
CKNULL(pwd.pw_class);
|
||
|
|
CKNULL(pwd.pw_gecos);
|
||
|
|
CKNULL(pwd.pw_dir);
|
||
|
|
CKNULL(pwd.pw_shell);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return pw;
|
||
|
|
}
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
int vpwdb(char *arg, ...)
|
||
|
|
{
|
||
|
|
arg=arg;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
static FILE * grp_fp = NULL;
|
||
|
|
|
||
|
|
void
|
||
|
|
vendgrent(void)
|
||
|
|
{
|
||
|
|
if (grp_fp != NULL) {
|
||
|
|
fclose(grp_fp);
|
||
|
|
grp_fp = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
vsetgrent(void)
|
||
|
|
{
|
||
|
|
vendgrent();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct group *
|
||
|
|
vnextgrent(char const * nam, gid_t gid, int doclose)
|
||
|
|
{
|
||
|
|
struct group * gr = NULL;
|
||
|
|
|
||
|
|
static char * grtmp = NULL;
|
||
|
|
static int grlen = 0;
|
||
|
|
static char ** mems = NULL;
|
||
|
|
static int memlen = 0;
|
||
|
|
|
||
|
|
extendline(&grtmp, &grlen, MAXPATHLEN);
|
||
|
|
strncpy(grtmp, getgrpath(_GROUP), MAXPATHLEN);
|
||
|
|
grtmp[MAXPATHLEN - 1] = '\0';
|
||
|
|
|
||
|
|
if (grp_fp != NULL || (grp_fp = fopen(grtmp, "r")) != NULL) {
|
||
|
|
int done = 0;
|
||
|
|
|
||
|
|
static struct group grp;
|
||
|
|
|
||
|
|
while (!done && fgets(grtmp, grlen, grp_fp) != NULL)
|
||
|
|
{
|
||
|
|
int i, quickout = 0;
|
||
|
|
int mno = 0;
|
||
|
|
char * q, * p;
|
||
|
|
char * sep = ":\n";
|
||
|
|
|
||
|
|
if ((p = strchr(grtmp, '\n')) == NULL) {
|
||
|
|
int l;
|
||
|
|
extendline(&grtmp, &grlen, grlen + PWBUFSZ);
|
||
|
|
l = strlen(grtmp);
|
||
|
|
if (fgets(grtmp + l, grlen - l, grp_fp) == NULL)
|
||
|
|
break; /* No newline terminator on last line */
|
||
|
|
}
|
||
|
|
/* Skip comments and empty lines */
|
||
|
|
if (*grtmp == '\n' || *grtmp == '#')
|
||
|
|
continue;
|
||
|
|
i = 0;
|
||
|
|
q = p = grtmp;
|
||
|
|
bzero(&grp, sizeof grp);
|
||
|
|
extendarray(&mems, &memlen, 200);
|
||
|
|
while (!quickout && (p = strsep(&q, sep)) != NULL) {
|
||
|
|
switch (i++)
|
||
|
|
{
|
||
|
|
case 0: /* groupname */
|
||
|
|
grp.gr_name = p;
|
||
|
|
if (nam) {
|
||
|
|
if (strcmp(nam, p) == 0)
|
||
|
|
done = 1;
|
||
|
|
else
|
||
|
|
quickout = 1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 1: /* password */
|
||
|
|
grp.gr_passwd = p;
|
||
|
|
break;
|
||
|
|
case 2: /* gid */
|
||
|
|
grp.gr_gid = atoi(p);
|
||
|
|
if (gid != (gid_t)-1) {
|
||
|
|
if (gid == (gid_t)grp.gr_gid)
|
||
|
|
done = 1;
|
||
|
|
else
|
||
|
|
quickout = 1;
|
||
|
|
} else if (nam == NULL)
|
||
|
|
done = 1;
|
||
|
|
break;
|
||
|
|
case 3:
|
||
|
|
q = p;
|
||
|
|
sep = ",\n";
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (*p) {
|
||
|
|
extendarray(&mems, &memlen, mno + 2);
|
||
|
|
mems[mno++] = p;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
grp.gr_mem = mems;
|
||
|
|
mems[mno] = NULL;
|
||
|
|
}
|
||
|
|
if (doclose)
|
||
|
|
vendgrent();
|
||
|
|
if (done && grp.gr_name) {
|
||
|
|
gr = &grp;
|
||
|
|
|
||
|
|
CKNULL(grp.gr_passwd);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return gr;
|
||
|
|
}
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
vgrdb(char *arg, ...)
|
||
|
|
{
|
||
|
|
arg=arg;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|