libnsl/nss/getauthattr.c

	getauthattr.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * 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) 1999-2001 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <stdlib.h>
#include <sys/types.h>
#include <nss_dbdefs.h>
#include <rpc/trace.h>
#include <string.h>
#include <auth_attr.h>


/* externs from parse.c */
extern char *_strtok_escape(char *, char *, char **);

static int authattr_stayopen = 0;
/*
 * Unsynchronized, but it affects only
 * efficiency, not correctness
 */

static DEFINE_NSS_DB_ROOT(db_root);
static DEFINE_NSS_GETENT(context);

void
_nss_initf_authattr(nss_db_params_t *p)
{
    trace1(TR__nss_initf_authattr, 0);
    p->name = NSS_DBNAM_AUTHATTR;
    p->default_config = NSS_DEFCONF_AUTHATTR;
    trace1(TR__nss_initf_authattr, 1);
}


/*
 * Return values: 0 = success, 1 = parse error, 2 = erange ...
 * The structure pointer passed in is a structure in the caller's space
 * wherein the field pointers would be set to areas in the buffer if
 * need be. instring and buffer should be separate areas.
 */
int
str2authattr(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
{
    char        *str = (char *)NULL;
    char        *last = (char *)NULL;
    char        *sep = KV_TOKEN_DELIMIT;
    authstr_t   *auth = (authstr_t *)ent;

    trace3(TR_str2authattr, 0, lenstr, buflen);
    if ((instr >= buffer && (buffer + buflen) > instr) ||
        (buffer >= instr && (instr + lenstr) > buffer)) {
        trace3(TR_str2authattr, 1, lenstr, buflen);
        return (NSS_STR_PARSE_PARSE);
    }
    if (lenstr >= buflen) {
        trace3(TR_str2authattr, 1, lenstr, buflen);
        return (NSS_STR_PARSE_ERANGE);
    }
    strncpy(buffer, instr, buflen);
    /*
     * Remove newline that nis (yp_match) puts at the
     * end of the entry it retrieves from the map.
     */
    if (buffer[lenstr] == '\n') {
        buffer[lenstr] = '\0';
    }

    auth->name = _strtok_escape(buffer, sep, &last);
    auth->res1 = _strtok_escape(NULL, sep, &last);
    auth->res2 = _strtok_escape(NULL, sep, &last);
    auth->short_desc = _strtok_escape(NULL, sep, &last);
    auth->long_desc = _strtok_escape(NULL, sep, &last);
    auth->attr = _strtok_escape(NULL, sep, &last);

    return (0);
}


void
_setauthattr(void)
{
    trace1(TR_setauthattr, 0);
    authattr_stayopen = 0;
    nss_setent(&db_root, _nss_initf_authattr, &context);
    trace1(TR_setauthattr, 0);
}


void
_endauthattr(void)
{
    trace1(TR_endauthattr, 0);
    authattr_stayopen = 0;
    nss_endent(&db_root, _nss_initf_authattr, &context);
    nss_delete(&db_root);
    trace1(TR_endauthattr, 0);
}


authstr_t *
_getauthattr(authstr_t *result, char *buffer, int buflen, int *h_errnop)
{
    nss_XbyY_args_t arg;
    nss_status_t res;

    trace2(TR_getauthattr, 0, buflen);
    NSS_XbyY_INIT(&arg, result, buffer, buflen, str2authattr);
    res = nss_getent(&db_root, _nss_initf_authattr, &context, &arg);
    arg.status = res;
    *h_errnop = arg.h_errno;
    trace2(TR_getauthattr, 1, buflen);
    return ((authstr_t *)NSS_XbyY_FINI(&arg));
}


authstr_t *
_getauthnam(const char *name, authstr_t *result, char *buffer, int buflen,
    int *errnop)
{
    nss_XbyY_args_t arg;
    nss_status_t    res;

    trace2(TR_getauthnam, 0, buflen);
    NSS_XbyY_INIT(&arg, result, buffer, buflen, str2authattr);
    arg.key.name = name;
    arg.stayopen = authattr_stayopen;
    res = nss_search(&db_root, _nss_initf_authattr,
        NSS_DBOP_AUTHATTR_BYNAME, &arg);
    arg.status = res;
    *errnop = arg.h_errno;
    trace2(TR_getauthnam, 1, buflen);
    return ((authstr_t *)NSS_XbyY_FINI(&arg));
}