usbloadergx/source/libntfs/compat.c

/**
 * compat.c - Tweaks for Windows compatibility
 *
 * Copyright (c) 2002 Richard Russon
 * Copyright (c) 2002-2004 Anton Altaparmakov
 *
 * This program/include file is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program/include file is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program (in the main directory of the NTFS-3G
 * distribution in the file COPYING); if not, write to the Free Software
 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "compat.h"

#ifndef HAVE_FFS
/**
 * ffs - Find the first set bit in an int
 * @x:
 *
 * Description...
 *
 * Returns:
 */
int ffs( int x )
{
    int r = 1;

    if ( !x )
        return 0;
    if ( !( x & 0xffff ) )
    {
        x >>= 16;
        r += 16;
    }
    if ( !( x & 0xff ) )
    {
        x >>= 8;
        r += 8;
    }
    if ( !( x & 0xf ) )
    {
        x >>= 4;
        r += 4;
    }
    if ( !( x & 3 ) )
    {
        x >>= 2;
        r += 2;
    }
    if ( !( x & 1 ) )
    {
        x >>= 1;
        r += 1;
    }
    return r;
}
#endif /* HAVE_FFS */

#ifndef HAVE_DAEMON
/* ************************************************************
 *  From: src.opensolaris.org
 *  src/lib/libresolv2/common/bsd/daemon.c
 */
/*
 * Copyright (c) 1997-2000 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static const char sccsid[] = "@(#)daemon.c	8.1 (Berkeley) 6/4/93";
static const char rcsid[] = "$Id: compat.c,v 1.1.1.1.2.1 2008-08-16 15:17:44 jpandre Exp $";
#endif /* LIBC_SCCS and not lint */

/*
 * Copyright (c) 1990, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by the University of
 *  California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

int daemon( int nochdir, int noclose )
{
    int fd;

    switch ( fork() )
    {
        case -1:
            return ( -1 );
        case 0:
            break;
        default:
            _exit( 0 );
    }

    if ( setsid() == -1 )
        return ( -1 );

    if ( !nochdir )
        ( void )chdir( "/" );

    if ( !noclose && ( fd = open( "/dev/null", O_RDWR, 0 ) ) != -1 )
    {
        ( void )dup2( fd, 0 );
        ( void )dup2( fd, 1 );
        ( void )dup2( fd, 2 );
        if ( fd > 2 )
            ( void )close ( fd );
    }
    return ( 0 );
}
/*
 *  End: src/lib/libresolv2/common/bsd/daemon.c
 *************************************************************/
#endif /* HAVE_DAEMON */

#ifndef HAVE_STRSEP
/* ************************************************************
 *  From: src.opensolaris.org
 *  src/lib/libresolv2/common/bsd/strsep.c
 */
/*
 * Copyright (c) 1997, by Sun Microsystems, Inc.
 * All rights reserved.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static const char sccsid[] = "strsep.c	8.1 (Berkeley) 6/4/93";
static const char rcsid[] = "$Id: compat.c,v 1.1.1.1.2.1 2008-08-16 15:17:44 jpandre Exp $";
#endif /* LIBC_SCCS and not lint */

/*
 * Copyright (c) 1990, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by the University of
 *  California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_STDIO_H
#include <stdio.h>
#endif

/*
 * Get next token from string *stringp, where tokens are possibly-empty
 * strings separated by characters from delim.
 *
 * Writes NULs into the string at *stringp to end tokens.
 * delim need not remain constant from call to call.
 * On return, *stringp points past the last NUL written (if there might
 * be further tokens), or is NULL (if there are definitely no more tokens).
 *
 * If *stringp is NULL, strsep returns NULL.
 */
char *strsep( char **stringp, const char *delim )
{
    char *s;
    const char *spanp;
    int c, sc;
    char *tok;

    if ( ( s = *stringp ) == NULL )
        return ( NULL );
    for ( tok = s;; )
    {
        c = *s++;
        spanp = delim;
        do
        {
            if ( ( sc = *spanp++ ) == c )
            {
                if ( c == 0 )
                    s = NULL;
                else
                    s[-1] = 0;
                *stringp = s;
                return ( tok );
            }
        }
        while ( sc != 0 );
    }
    /* NOTREACHED */
}

/*
 *  End: src/lib/libresolv2/common/bsd/strsep.c
 *************************************************************/
#endif /* HAVE_STRSEP */