mirror of
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257 lines
7.9 KiB
C
257 lines
7.9 KiB
C
/**
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* compat.c - Tweaks for Windows compatibility
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*
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* Copyright (c) 2002 Richard Russon
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* Copyright (c) 2002-2004 Anton Altaparmakov
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*
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* This program/include file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program/include file is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (in the main directory of the NTFS-3G
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* distribution in the file COPYING); if not, write to the Free Software
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* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "compat.h"
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#ifndef HAVE_FFS
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/**
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* ffs - Find the first set bit in an int
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* @x:
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*
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* Description...
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*
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* Returns:
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*/
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int ffs(int x)
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{
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int r = 1;
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if (!x) return 0;
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if (!(x & 0xffff))
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{
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x >>= 16;
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r += 16;
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}
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if (!(x & 0xff))
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{
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x >>= 8;
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r += 8;
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}
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if (!(x & 0xf))
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{
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x >>= 4;
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r += 4;
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}
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if (!(x & 3))
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{
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x >>= 2;
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r += 2;
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}
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if (!(x & 1))
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{
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x >>= 1;
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r += 1;
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}
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return r;
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}
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#endif /* HAVE_FFS */
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#ifndef HAVE_DAEMON
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/* ************************************************************
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* From: src.opensolaris.org
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* src/lib/libresolv2/common/bsd/daemon.c
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*/
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/*
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* Copyright (c) 1997-2000 by Sun Microsystems, Inc.
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* All rights reserved.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static const char sccsid[] = "@(#)daemon.c 8.1 (Berkeley) 6/4/93";
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static const char rcsid[] = "$Id: compat.c,v 1.1.1.1.2.1 2008-08-16 15:17:44 jpandre Exp $";
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#endif /* LIBC_SCCS and not lint */
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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int daemon(int nochdir, int noclose)
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{
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int fd;
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switch (fork())
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{
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case -1:
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return (-1);
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case 0:
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break;
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default:
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_exit(0);
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}
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if (setsid() == -1) return (-1);
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if (!nochdir) (void) chdir("/");
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if (!noclose && (fd = open("/dev/null", O_RDWR, 0)) != -1)
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{
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(void) dup2(fd, 0);
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(void) dup2(fd, 1);
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(void) dup2(fd, 2);
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if (fd > 2) (void) close(fd);
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}
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return (0);
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}
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/*
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* End: src/lib/libresolv2/common/bsd/daemon.c
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*************************************************************/
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#endif /* HAVE_DAEMON */
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#ifndef HAVE_STRSEP
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/* ************************************************************
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* From: src.opensolaris.org
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* src/lib/libresolv2/common/bsd/strsep.c
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*/
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/*
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* Copyright (c) 1997, by Sun Microsystems, Inc.
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* All rights reserved.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static const char sccsid[] = "strsep.c 8.1 (Berkeley) 6/4/93";
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static const char rcsid[] = "$Id: compat.c,v 1.1.1.1.2.1 2008-08-16 15:17:44 jpandre Exp $";
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#endif /* LIBC_SCCS and not lint */
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_STDIO_H
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#include <stdio.h>
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#endif
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/*
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* Get next token from string *stringp, where tokens are possibly-empty
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* strings separated by characters from delim.
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*
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* Writes NULs into the string at *stringp to end tokens.
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* delim need not remain constant from call to call.
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* On return, *stringp points past the last NUL written (if there might
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* be further tokens), or is NULL (if there are definitely no more tokens).
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*
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* If *stringp is NULL, strsep returns NULL.
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*/
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char *strsep(char **stringp, const char *delim)
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{
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char *s;
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const char *spanp;
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int c, sc;
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char *tok;
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if ((s = *stringp) == NULL) return (NULL);
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for (tok = s;;)
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{
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c = *s++;
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spanp = delim;
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do
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{
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if ((sc = *spanp++) == c)
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{
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if (c == 0)
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s = NULL;
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else s[-1] = 0;
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*stringp = s;
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return (tok);
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}
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} while (sc != 0);
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}
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/* NOTREACHED */
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}
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/*
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* End: src/lib/libresolv2/common/bsd/strsep.c
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*************************************************************/
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#endif /* HAVE_STRSEP */
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