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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/* Copyright (C) 1991, 92, 96, 98, 99, 2000 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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02111-1307 USA. */
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#include <errno.h>
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#include <stdio.h>
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#include <grp.h>
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#ifdef USE_IN_LIBIO
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# define flockfile(s) _IO_flockfile (s)
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# define funlockfile(s) _IO_funlockfile (s)
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#endif
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#define _S(x) x ? x : ""
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/* Write an entry to the given stream.
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This must know the format of the group file. */
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int
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putgrent (gr, stream)
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const struct group *gr;
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FILE *stream;
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{
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int retval;
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if (__builtin_expect (gr == NULL, 0) || __builtin_expect (stream == NULL, 0))
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{
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__set_errno (EINVAL);
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return -1;
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}
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flockfile (stream);
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retval = fprintf (stream, "%s:%s:%u:",
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gr->gr_name, _S (gr->gr_passwd), gr->gr_gid);
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if (__builtin_expect (retval, 0) < 0)
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{
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funlockfile (stream);
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return -1;
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}
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if (gr->gr_mem != NULL)
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{
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int i;
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for (i = 0 ; gr->gr_mem[i] != NULL; i++)
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if (fprintf (stream, i == 0 ? "%s" : ",%s", gr->gr_mem[i]) < 0)
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{
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/* What else can we do? */
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funlockfile (stream);
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return -1;
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}
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}
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retval = fputc_unlocked ('\n', stream);
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funlockfile (stream);
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return retval < 0 ? -1 : 0;
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}
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