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/* Copyright (C) 1996, 1997, 1999, 2000, 2002 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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#include <bits/libc-lock.h>
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/* A reasonable size for a buffer to start with. */
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#define BUFLEN_SPWD 1024
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/* We need to protect the dynamic buffer handling. */
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__libc_lock_define_initialized (static, lock);
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libc_freeres_ptr (static char *buffer);
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/* Read one shadow entry from the given stream. */
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fgetspent (FILE *stream)
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static size_t buffer_size;
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static struct spwd resbuf;
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if (fgetpos (stream, &pos) != 0)
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__libc_lock_lock (lock);
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/* Allocate buffer if not yet available. */
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buffer_size = BUFLEN_SPWD;
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buffer = malloc (buffer_size);
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&& (__fgetspent_r (stream, &resbuf, buffer, buffer_size, &result)
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buffer_size += BUFLEN_SPWD;
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new_buf = realloc (buffer, buffer_size);
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/* We are out of memory. Free the current buffer so that the
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process gets a chance for a normal termination. */
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/* Reset the stream. */
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if (fsetpos (stream, &pos) != 0)
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/* Release lock. Preserve error value. */
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__libc_lock_unlock (lock);