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Diffstat (limited to 'glibc-compat/nss_db/db-XXX.c')
-rw-r--r--glibc-compat/nss_db/db-XXX.c257
1 files changed, 0 insertions, 257 deletions
diff --git a/glibc-compat/nss_db/db-XXX.c b/glibc-compat/nss_db/db-XXX.c
deleted file mode 100644
index 8c05829656..0000000000
--- a/glibc-compat/nss_db/db-XXX.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/* Common code for DB-based databases in nss_db module.
- Copyright (C) 1996, 1997, 1998, 1999, 2000 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 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <dlfcn.h>
-#include <fcntl.h>
-#include <bits/libc-lock.h>
-#include "nsswitch.h"
-#include "nss_db.h"
-
-/* These symbols are defined by the including source file:
-
- ENTNAME -- database name of the structure and functions (hostent, pwent).
- STRUCTURE -- struct name, define only if not ENTNAME (passwd, group).
- DATABASE -- database file name, ("hosts", "passwd")
-
- NEED_H_ERRNO - defined iff an arg `int *herrnop' is used.
-*/
-
-#define ENTNAME_r CONCAT(ENTNAME,_r)
-
-#include <paths.h>
-#define DBFILE _PATH_VARDB DATABASE ".db"
-
-#ifdef NEED_H_ERRNO
-#define H_ERRNO_PROTO , int *herrnop
-#define H_ERRNO_ARG , herrnop
-#define H_ERRNO_SET(val) (*herrnop = (val))
-#else
-#define H_ERRNO_PROTO
-#define H_ERRNO_ARG
-#define H_ERRNO_SET(val) ((void) 0)
-#endif
-
-/* Locks the static variables in this file. */
-__libc_lock_define_initialized (static, lock)
-
-/* Maintenance of the shared handle open on the database. */
-
-static NSS_DB *db;
-static int keep_db;
-static int entidx;
-
-
-/* Open the database. */
-enum nss_status
-CONCAT(_nss_db_set,ENTNAME) (int stayopen)
-{
- enum nss_status status;
-
- __libc_lock_lock (lock);
-
- status = internal_setent (DBFILE, &db);
-
- /* Remember STAYOPEN flag. */
- if (db != NULL)
- keep_db |= stayopen;
- /* Reset the sequential index. */
- entidx = 0;
-
- __libc_lock_unlock (lock);
-
- return status;
-}
-
-
-/* Close it again. */
-enum nss_status
-CONCAT(_nss_db_end,ENTNAME) (void)
-{
- __libc_lock_lock (lock);
-
- internal_endent (&db);
-
- /* Reset STAYOPEN flag. */
- keep_db = 0;
-
- __libc_lock_unlock (lock);
-
- return NSS_STATUS_SUCCESS;
-}
-
-/* Do a database lookup for KEY. */
-static enum nss_status
-lookup (DBT *key, struct STRUCTURE *result,
- void *buffer, int buflen H_ERRNO_PROTO)
-{
- char *p;
- enum nss_status status;
- int err;
- DBT value;
-
- /* Open the database. */
- if (db == NULL)
- {
- status = internal_setent (DBFILE, &db);
- if (status != NSS_STATUS_SUCCESS)
- {
- H_ERRNO_SET (NETDB_INTERNAL);
- return status;
- }
- }
-
- /* Succeed iff it matches a value that parses correctly. */
- value.flags = 0;
- err = DL_CALL_FCT (db->get, (db->db, NULL, key, &value, 0));
- if (err != 0)
- {
- if (err == db_notfound)
- {
- H_ERRNO_SET (HOST_NOT_FOUND);
- status = NSS_STATUS_NOTFOUND;
- }
- else
- {
- H_ERRNO_SET (NETDB_INTERNAL);
- status = NSS_STATUS_UNAVAIL;
- }
- }
- else if (buflen < value.size)
- {
- /* No room to copy the data to. */
- __set_errno (ERANGE);
- H_ERRNO_SET (NETDB_INTERNAL);
- status = NSS_STATUS_TRYAGAIN;
- }
- else
- {
- /* Copy the result to a safe place. */
- p = (char *) memcpy (buffer, value.data, value.size);
-
- /* Skip leading blanks. */
- while (isspace (*p))
- ++p;
-
- err = parse_line (p, result, buffer, buflen);
-
- if (err == 0)
- {
- /* If the key begins with '0' we are trying to get the next
- entry. We want to ignore unparsable lines in this case. */
- if (((char *) key->data)[0] == '0')
- {
- /* Super magical return value. We need to tell our caller
- that it should continue looping. This value cannot
- happen in other cases. */
- status = NSS_STATUS_RETURN;
- }
- else
- {
- H_ERRNO_SET (HOST_NOT_FOUND);
- status = NSS_STATUS_NOTFOUND;
- }
- }
- else if (err < 0)
- {
- H_ERRNO_SET (NETDB_INTERNAL);
- status = NSS_STATUS_TRYAGAIN;
- }
- else
- status = NSS_STATUS_SUCCESS;
- }
-
- if (! keep_db)
- internal_endent (&db);
-
- return status;
-}
-
-
-/* Macro for defining lookup functions for this DB-based database.
-
- NAME is the name of the lookup; e.g. `pwnam'.
-
- KEYPATTERN gives `printf' args to construct a key string;
- e.g. `(".%s", name)'.
-
- KEYSIZE gives the allocation size of a buffer to construct it in;
- e.g. `1 + strlen (name)'.
-
- PROTO describes the arguments for the lookup key;
- e.g. `const char *name'.
-
- BREAK_IF_MATCH is ignored, but used by ../nss_files/files-XXX.c. */
-
-#define DB_LOOKUP(name, keysize, keypattern, break_if_match, proto...) \
-enum nss_status \
-_nss_db_get##name##_r (proto, \
- struct STRUCTURE *result, \
- char *buffer, size_t buflen H_ERRNO_PROTO)\
-{ \
- DBT key; \
- enum nss_status status; \
- const size_t size = (keysize) + 1; \
- key.data = __alloca (size); \
- key.size = KEYPRINTF keypattern; \
- key.flags = 0; \
- __libc_lock_lock (lock); \
- status = lookup (&key, result, buffer, buflen H_ERRNO_ARG); \
- __libc_lock_unlock (lock); \
- return status; \
-}
-
-#define KEYPRINTF(pattern, args...) snprintf (key.data, size, pattern ,##args)
-
-
-
-
-/* Return the next entry from the database file, doing locking. */
-enum nss_status
-CONCAT(_nss_db_get,ENTNAME_r) (struct STRUCTURE *result, char *buffer,
- size_t buflen H_ERRNO_PROTO)
-{
- /* Return next entry in host file. */
- enum nss_status status;
- char buf[20];
- DBT key;
-
- __libc_lock_lock (lock);
-
- /* Loop until we find a valid entry or hit EOF. See above for the
- special meaning of the status value. */
- do
- {
- key.size = snprintf (key.data = buf, sizeof buf, "0%u", entidx++);
- key.flags = 0;
- status = lookup (&key, result, buffer, buflen H_ERRNO_ARG);
- if (status == NSS_STATUS_TRYAGAIN
-#ifdef NEED_H_ERRNO
- && *herrnop == NETDB_INTERNAL
-#endif
- && errno == ERANGE)
- /* Give the user a chance to get the same entry with a larger
- buffer. */
- --entidx;
- }
- while (status == NSS_STATUS_RETURN);
-
- __libc_lock_unlock (lock);
-
- return status;
-}
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