1/** 2 * compat.c - Tweaks for Windows compatibility 3 * 4 * Copyright (c) 2002 Richard Russon 5 * Copyright (c) 2002-2004 Anton Altaparmakov 6 * 7 * This program/include file is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as published 9 * by the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program/include file is distributed in the hope that it will be 13 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty 14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program (in the main directory of the NTFS-3G 19 * distribution in the file COPYING); if not, write to the Free Software 20 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23#ifdef HAVE_CONFIG_H 24#include "config.h" 25#endif 26 27#include "compat.h" 28 29#ifndef HAVE_FFS 30/** 31 * ffs - Find the first set bit in an int 32 * @x: 33 * 34 * Description... 35 * 36 * Returns: 37 */ 38int ffs(int x) 39{ 40 int r = 1; 41 42 if (!x) 43 return 0; 44 if (!(x & 0xffff)) { 45 x >>= 16; 46 r += 16; 47 } 48 if (!(x & 0xff)) { 49 x >>= 8; 50 r += 8; 51 } 52 if (!(x & 0xf)) { 53 x >>= 4; 54 r += 4; 55 } 56 if (!(x & 3)) { 57 x >>= 2; 58 r += 2; 59 } 60 if (!(x & 1)) { 61 x >>= 1; 62 r += 1; 63 } 64 return r; 65} 66#endif /* HAVE_FFS */ 67 68#ifndef HAVE_DAEMON 69/* ************************************************************ 70 * From: src.opensolaris.org 71 * src/lib/libresolv2/common/bsd/daemon.c 72 */ 73/* 74 * Copyright (c) 1997-2000 by Sun Microsystems, Inc. 75 * All rights reserved. 76 */ 77 78#if defined(LIBC_SCCS) && !defined(lint) 79static const char sccsid[] = "@(#)daemon.c 8.1 (Berkeley) 6/4/93"; 80static const char rcsid[] = "$Id: compat.c,v 1.1.1.1.2.1 2008-08-16 15:17:44 jpandre Exp $"; 81#endif /* LIBC_SCCS and not lint */ 82 83/* 84 * Copyright (c) 1990, 1993 85 * The Regents of the University of California. All rights reserved. 86 * 87 * Redistribution and use in source and binary forms, with or without 88 * modification, are permitted provided that the following conditions 89 * are met: 90 * 1. Redistributions of source code must retain the above copyright 91 * notice, this list of conditions and the following disclaimer. 92 * 2. Redistributions in binary form must reproduce the above copyright 93 * notice, this list of conditions and the following disclaimer in the 94 * documentation and/or other materials provided with the distribution. 95 * 3. All advertising materials mentioning features or use of this software 96 * must display the following acknowledgement: 97 * This product includes software developed by the University of 98 * California, Berkeley and its contributors. 99 * 4. Neither the name of the University nor the names of its contributors 100 * may be used to endorse or promote products derived from this software 101 * without specific prior written permission. 102 * 103 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 104 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 105 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 106 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 107 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 108 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 109 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 110 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 111 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 112 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 113 * SUCH DAMAGE. 114 */ 115 116#ifdef HAVE_FCNTL_H 117#include <fcntl.h> 118#endif 119#ifdef HAVE_UNISTD_H 120#include <unistd.h> 121#endif 122 123int daemon(int nochdir, int noclose) { 124 int fd; 125 126 switch (fork()) { 127 case -1: 128 return (-1); 129 case 0: 130 break; 131 default: 132 _exit(0); 133 } 134 135 if (setsid() == -1) 136 return (-1); 137 138 if (!nochdir) 139 (void)chdir("/"); 140 141 if (!noclose && (fd = open("/dev/null", O_RDWR, 0)) != -1) { 142 (void)dup2(fd, 0); 143 (void)dup2(fd, 1); 144 (void)dup2(fd, 2); 145 if (fd > 2) 146 (void)close (fd); 147 } 148 return (0); 149} 150/* 151 * End: src/lib/libresolv2/common/bsd/daemon.c 152 *************************************************************/ 153#endif /* HAVE_DAEMON */ 154 155#ifndef HAVE_STRSEP 156/* ************************************************************ 157 * From: src.opensolaris.org 158 * src/lib/libresolv2/common/bsd/strsep.c 159 */ 160/* 161 * Copyright (c) 1997, by Sun Microsystems, Inc. 162 * All rights reserved. 163 */ 164 165#if defined(LIBC_SCCS) && !defined(lint) 166static const char sccsid[] = "strsep.c 8.1 (Berkeley) 6/4/93"; 167static const char rcsid[] = "$Id: compat.c,v 1.1.1.1.2.1 2008-08-16 15:17:44 jpandre Exp $"; 168#endif /* LIBC_SCCS and not lint */ 169 170/* 171 * Copyright (c) 1990, 1993 172 * The Regents of the University of California. All rights reserved. 173 * 174 * Redistribution and use in source and binary forms, with or without 175 * modification, are permitted provided that the following conditions 176 * are met: 177 * 1. Redistributions of source code must retain the above copyright 178 * notice, this list of conditions and the following disclaimer. 179 * 2. Redistributions in binary form must reproduce the above copyright 180 * notice, this list of conditions and the following disclaimer in the 181 * documentation and/or other materials provided with the distribution. 182 * 3. All advertising materials mentioning features or use of this software 183 * must display the following acknowledgement: 184 * This product includes software developed by the University of 185 * California, Berkeley and its contributors. 186 * 4. Neither the name of the University nor the names of its contributors 187 * may be used to endorse or promote products derived from this software 188 * without specific prior written permission. 189 * 190 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 191 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 192 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 193 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 194 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 195 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 196 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 197 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 198 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 199 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 200 * SUCH DAMAGE. 201 */ 202 203#ifdef HAVE_STRING_H 204#include <string.h> 205#endif 206#ifdef HAVE_STDIO_H 207#include <stdio.h> 208#endif 209 210/* 211 * Get next token from string *stringp, where tokens are possibly-empty 212 * strings separated by characters from delim. 213 * 214 * Writes NULs into the string at *stringp to end tokens. 215 * delim need not remain constant from call to call. 216 * On return, *stringp points past the last NUL written (if there might 217 * be further tokens), or is NULL (if there are definitely no more tokens). 218 * 219 * If *stringp is NULL, strsep returns NULL. 220 */ 221char *strsep(char **stringp, const char *delim) { 222 char *s; 223 const char *spanp; 224 int c, sc; 225 char *tok; 226 227 if ((s = *stringp) == NULL) 228 return (NULL); 229 for (tok = s;;) { 230 c = *s++; 231 spanp = delim; 232 do { 233 if ((sc = *spanp++) == c) { 234 if (c == 0) 235 s = NULL; 236 else 237 s[-1] = 0; 238 *stringp = s; 239 return (tok); 240 } 241 } while (sc != 0); 242 } 243 /* NOTREACHED */ 244} 245 246/* 247 * End: src/lib/libresolv2/common/bsd/strsep.c 248 *************************************************************/ 249#endif /* HAVE_STRSEP */ 250 251