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70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/* Common database open/close routines for nss_db.
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Copyright (C) 1999-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _NSS_DB_H
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#define _NSS_DB_H 1
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#include <nss.h>
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#include <stdint.h>
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#include <libc-lock.h>
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/* String table index type. */
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typedef uint32_t stridx_t;
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/* Database file header. */
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struct nss_db_header
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{
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uint32_t magic;
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#define NSS_DB_MAGIC 0xdd110601
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uint32_t ndbs;
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uint64_t valstroffset;
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uint64_t valstrlen;
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uint64_t allocate;
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struct
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{
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char id;
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char pad[sizeof (uint32_t) - 1];
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uint32_t hashsize;
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uint64_t hashoffset;
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uint64_t keyidxoffset;
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uint64_t keystroffset;
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} dbs[0];
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};
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/* Information about mapped database. */
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struct nss_db_map
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{
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struct nss_db_header *header;
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size_t len;
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};
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/* Open the database stored in FILE. If succesful, store the database
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handle in *MAPPINGP or a file descriptor for the file in *FDP and
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return NSS_STATUS_SUCCESS. On failure, return the appropriate
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lookup status. */
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enum nss_status internal_setent (const char *file,
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struct nss_db_map *mappingp);
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/* Close the database FD. */
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extern void internal_endent (struct nss_db_map *mapping);
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#endif /* nss_db.h */
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