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140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
/* Copyright (C) 2008-2020 Free Software Foundation, Inc.
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Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
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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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<https://www.gnu.org/licenses/>. */
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#include <sys/types.h>
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#include <utmp.h>
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#include <errno.h>
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#include <libc-symbols.h>
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#include "utmp32.h"
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#include "utmp-convert.h"
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#include "utmpx32.h"
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#include "utmpx-convert.h"
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/* Allocate a static buffer to be returned to the caller. As well as
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with the existing version of these functions the caller has to be
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aware that the contents of this buffer will change with subsequent
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calls. */
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#define ALLOCATE_UTMPX32_OUT(OUT) \
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static struct utmpx32 *OUT = NULL; \
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\
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if (OUT == NULL) \
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{ \
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OUT = malloc (sizeof (struct utmpx32)); \
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if (OUT == NULL) \
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return NULL; \
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}
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/* Perform a lookup for a utmpx entry matching FIELD using function
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FUNC. FIELD is converted to a 64 bit utmpx and the result is
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converted back to 32 bit utmpx. */
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#define ACCESS_UTMPX_ENTRY(FUNC, FIELD) \
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struct utmpx in64; \
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struct utmpx *out64; \
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ALLOCATE_UTMPX32_OUT (out32); \
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\
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utmpx_convert32to64 (FIELD, &in64); \
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out64 = FUNC (&in64); \
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\
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if (out64 == NULL) \
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return NULL; \
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\
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utmpx_convert64to32 (out64, out32); \
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\
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return out32;
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/* Get the next entry from the user accounting database. */
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struct utmpx32 *
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getutxent32 (void)
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{
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struct utmpx *out64;
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ALLOCATE_UTMPX32_OUT (out32);
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out64 = __getutxent ();
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if (!out64)
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return NULL;
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utmpx_convert64to32 (out64, out32);
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return out32;
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}
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symbol_version (getutxent32, getutxent, GLIBC_2.1);
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/* Get the user accounting database entry corresponding to ID. */
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struct utmpx32 *
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getutxid32 (const struct utmpx32 *id)
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{
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ACCESS_UTMPX_ENTRY (__getutxid, id);
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}
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symbol_version (getutxid32, getutxid, GLIBC_2.1);
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/* Get the user accounting database entry corresponding to LINE. */
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struct utmpx32 *
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getutxline32 (const struct utmpx32 *line)
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{
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ACCESS_UTMPX_ENTRY (__getutxline, line);
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}
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symbol_version (getutxline32, getutxline, GLIBC_2.1);
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/* Write the entry UTMPX into the user accounting database. */
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struct utmpx32 *
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pututxline32 (const struct utmpx32 *utmpx)
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{
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ACCESS_UTMPX_ENTRY (__pututxline, utmpx);
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}
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symbol_version (pututxline32, pututxline, GLIBC_2.1);
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/* Append entry UTMP to the wtmpx-like file WTMPX_FILE. */
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void
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updwtmpx32 (const char *wtmpx_file, const struct utmpx32 *utmpx)
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{
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struct utmpx in64;
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utmpx_convert32to64 (utmpx, &in64);
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__updwtmpx (wtmpx_file, &in64);
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}
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symbol_version (updwtmpx32, updwtmpx, GLIBC_2.1);
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/* Copy the information in UTMPX to UTMP. */
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void
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getutmp32 (const struct utmpx32 *utmpx, struct utmp32 *utmp)
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{
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struct utmpx in64;
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struct utmp out64;
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utmpx_convert32to64 (utmpx, &in64);
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__getutmp (&in64, &out64);
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utmp_convert64to32 (&out64, utmp);
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}
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symbol_version (getutmp32, getutmp, GLIBC_2.1.1);
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/* Copy the information in UTMP to UTMPX. */
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void
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getutmpx32 (const struct utmp32 *utmp, struct utmpx32 *utmpx)
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{
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struct utmp in64;
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struct utmpx out64;
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utmp_convert32to64 (utmp, &in64);
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__getutmpx (&in64, &out64);
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utmpx_convert64to32 (&out64, utmpx);
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}
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symbol_version (getutmpx32, getutmpx, GLIBC_2.1.1);
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