68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* Copyright (C) 1991 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <grp.h>
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static FILE *stream = NULL;
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/* Rewind the stream. */
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void
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DEFUN_VOID(setgrent)
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{
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if (stream != NULL)
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rewind(stream);
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}
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/* Close the stream. */
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void
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DEFUN_VOID(endgrent)
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{
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if (stream != NULL)
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{
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(void) fclose(stream);
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stream = NULL;
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}
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}
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/* Read an entry from the stream. */
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struct group *
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DEFUN_VOID(getgrent)
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{
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static PTR info = NULL;
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if (info == NULL)
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{
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info = __grpalloc();
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if (info == NULL)
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return(NULL);
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}
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if (stream == NULL)
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{
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stream = __grpopen();
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if (stream == NULL)
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return(NULL);
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}
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return(__grpread(stream, info));
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}
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