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/*
aliases.c - NSS lookup functions for aliases database
Copyright (C) 2006 West Consulting
Copyright (C) 2006-2015 Arthur de Jong
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "config.h"
#include <string.h>
#include <errno.h>
#include "prototypes.h"
#include "common.h"
/* read an alias entry from the stream */
static nss_status_t read_aliasent(TFILE *fp, struct aliasent *result,
char *buffer, size_t buflen, int *errnop)
{
int32_t tmpint32, tmp2int32, tmp3int32;
size_t bufptr = 0;
memset(result, 0, sizeof(struct aliasent));
/* read the name of the alias */
READ_BUF_STRING(fp, result->alias_name);
/* read the members */
READ_BUF_STRINGLIST(fp, result->alias_members);
/* tmp3int32 holds the number of entries read */
result->alias_members_len = tmp3int32;
/* fill in remaining gaps in struct */
result->alias_local = 0;
/* we're done */
return NSS_STATUS_SUCCESS;
}
/* get an alias entry by name */
nss_status_t NSS_NAME(getaliasbyname_r)(const char *name,
struct aliasent *result,
char *buffer, size_t buflen,
int *errnop)
{
NSS_GETONE(NSLCD_ACTION_ALIAS_BYNAME,
WRITE_STRING(fp, name),
read_aliasent(fp, result, buffer, buflen, errnop));
}
/* thread-local file pointer to an ongoing request */
static TLS TFILE *aliasentfp;
/* start a request to read all aliases */
nss_status_t NSS_NAME(setaliasent)(void)
{
NSS_SETENT(aliasentfp);
}
/* read a single alias entry from the stream */
nss_status_t NSS_NAME(getaliasent_r)(struct aliasent *result,
char *buffer, size_t buflen, int *errnop)
{
NSS_GETENT(aliasentfp, NSLCD_ACTION_ALIAS_ALL,
read_aliasent(aliasentfp, result, buffer, buflen, errnop));
}
/* close the stream opened with setaliasent() above */
nss_status_t NSS_NAME(endaliasent)(void)
{
NSS_ENDENT(aliasentfp);
}
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