/* Common code for DB-based databases in nss_db module.
-Copyright (C) 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU C 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
-Library General Public License for more details.
+ The GNU C 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
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
-#include <db.h>
+#include <db_185.h>
#include <fcntl.h>
-#include <libc-lock.h>
+#include <bits/libc-lock.h>
#include "nsswitch.h"
/* These symbols are defined by the including source file:
static unsigned int entidx; /* Index for `getENTNAME'. */
/* Open database file if not already opened. */
-static int
+static enum nss_status
internal_setent (int stayopen)
{
- int status = NSS_STATUS_SUCCESS;
+ enum nss_status status = NSS_STATUS_SUCCESS;
if (db == NULL)
{
- db = dbopen (DBFILE, O_RDONLY, 0, DB_BTREE, NULL);
+ db = __dbopen (DBFILE, O_RDONLY, 0, DB_BTREE, NULL);
if (db == NULL)
- status = NSS_STATUS_UNAVAIL;
+ status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
+ else
+ {
+ /* We have to make sure the file is `closed on exec'. */
+ int result, flags;
+
+ result = flags = fcntl ((*db->fd) (db), F_GETFD, 0);
+ if (result >= 0)
+ {
+ flags |= FD_CLOEXEC;
+ result = fcntl ((*db->fd) (db), F_SETFD, flags);
+ }
+ if (result < 0)
+ {
+ /* Something went wrong. Close the stream and return a
+ failure. */
+ (*db->close) (db);
+ db = NULL;
+ status = NSS_STATUS_UNAVAIL;
+ }
+ }
}
/* Remember STAYOPEN flag. */
/* Thread-safe, exported version of that. */
-int
+enum nss_status
CONCAT(_nss_db_set,ENTNAME) (int stayopen)
{
- int status;
+ enum nss_status status;
__libc_lock_lock (lock);
/* Thread-safe, exported version of that. */
-int
+enum nss_status
CONCAT(_nss_db_end,ENTNAME) (void)
{
__libc_lock_lock (lock);
/* Do a database lookup for KEY. */
static enum nss_status
lookup (const DBT *key, struct STRUCTURE *result,
- void *buffer, int buflen H_ERRNO_PROTO)
+ void *buffer, size_t buflen, int *errnop H_ERRNO_PROTO)
{
enum nss_status status;
+ int err;
DBT value;
/* Open the database. */
return status;
/* Succeed iff it matches a value that parses correctly. */
- status = (((*db->get) (db, key, &value, 0) == 0 &&
- parse_line (value.data, result, buffer, buflen))
- ? NSS_STATUS_SUCCESS : NSS_STATUS_NOTFOUND);
+ err = ((*db->get) (db, key, &value, 0) == 0 &&
+ parse_line (value.data, result, buffer, buflen, errnop));
+ if (err == 0)
+ status = NSS_STATUS_SUCCESS;
+ else
+ status = err < 0 ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
if (! keep_db)
internal_endent ();
enum nss_status \
_nss_db_get##name##_r (proto, \
struct STRUCTURE *result, \
- char *buffer, int buflen H_ERRNO_PROTO) \
+ char *buffer, size_t buflen, int *errnop H_ERRNO_PROTO)\
{ \
DBT key; \
enum nss_status status; \
key.data = __alloca (size); \
key.size = KEYPRINTF keypattern; \
__libc_lock_lock (lock); \
- status = lookup (&key, result, buffer, buflen H_ERRNO_ARG); \
+ status = lookup (&key, result, buffer, buflen, errnop H_ERRNO_ARG); \
__libc_lock_unlock (lock); \
return status; \
}
/* Return the next entry from the database file, doing locking. */
enum nss_status
-CONCAT(_nss_db_get,ENTNAME_r) (struct STRUCTURE *result,
- char *buffer, int buflen H_ERRNO_PROTO)
+CONCAT(_nss_db_get,ENTNAME_r) (struct STRUCTURE *result, char *buffer,
+ size_t buflen, int *errnop H_ERRNO_PROTO)
{
/* Return next entry in host file. */
enum nss_status status;
__libc_lock_lock (lock);
key.size = 1 + snprintf (key.data = buf, sizeof buf, "0%u", entidx++);
- status = lookup (&key, result, buffer, buflen H_ERRNO_ARG);
+ status = lookup (&key, result, buffer, buflen, errnop H_ERRNO_ARG);
__libc_lock_unlock (lock);
return status;
projects / kopensolaris-gnu / glibc.git / blobdiff