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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1988-1995 Sun Microsystems Inc
* All Rights Reserved.
*
* files/getpwnam.c -- "files" backend for nsswitch "passwd" database
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <pwd.h>
#include <shadow.h>
#include <unistd.h> /* for PF_PATH */
#include "files_common.h"
#include <strings.h>
static u_int
hash_pwname(nss_XbyY_args_t *argp, int keyhash)
{
struct passwd *p = argp->returnval;
const char *name = keyhash ? argp->key.name : p->pw_name;
u_int hash = 0;
while (*name != 0)
hash = hash * 15 + *name++;
return (hash);
}
static u_int
hash_pwuid(nss_XbyY_args_t *argp, int keyhash)
{
struct passwd *p = argp->returnval;
return (keyhash ? (u_int)argp->key.uid : (u_int)p->pw_uid);
}
static files_hash_func hash_pw[2] = { hash_pwname, hash_pwuid };
static files_hash_t hashinfo = {
DEFAULTMUTEX,
sizeof (struct passwd),
NSS_BUFLEN_PASSWD,
2,
hash_pw
};
static int
check_pwname(argp)
nss_XbyY_args_t *argp;
{
struct passwd *p = (struct passwd *)argp->returnval;
/* +/- entries valid for compat source only */
if (p->pw_name != 0 && (p->pw_name[0] == '+' || p->pw_name[0] == '-'))
return (0);
return (strcmp(p->pw_name, argp->key.name) == 0);
}
static nss_status_t
getbyname(be, a)
files_backend_ptr_t be;
void *a;
{
return (_nss_files_XY_hash(be, a, 0, &hashinfo, 0, check_pwname));
}
static int
check_pwuid(argp)
nss_XbyY_args_t *argp;
{
struct passwd *p = (struct passwd *)argp->returnval;
/* +/- entries valid for compat source only */
if (p->pw_name != 0 && (p->pw_name[0] == '+' || p->pw_name[0] == '-'))
return (0);
return (p->pw_uid == argp->key.uid);
}
static nss_status_t
getbyuid(be, a)
files_backend_ptr_t be;
void *a;
{
return (_nss_files_XY_hash(be, a, 0, &hashinfo, 1, check_pwuid));
}
static files_backend_op_t passwd_ops[] = {
_nss_files_destr,
_nss_files_endent,
_nss_files_setent,
_nss_files_getent_rigid,
getbyname,
getbyuid
};
/*ARGSUSED*/
nss_backend_t *
_nss_files_passwd_constr(dummy1, dummy2, dummy3)
const char *dummy1, *dummy2, *dummy3;
{
return (_nss_files_constr(passwd_ops,
sizeof (passwd_ops) / sizeof (passwd_ops[0]),
PF_PATH,
NSS_LINELEN_PASSWD,
&hashinfo));
}
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