blob: 63114a48707886ed5836ceb6b0e1d7d3b6432776
| 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 | */ |
| 38 | int 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) |
| 79 | static const char sccsid[] = "@(#)daemon.c 8.1 (Berkeley) 6/4/93"; |
| 80 | static 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 | |
| 123 | int 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) |
| 166 | static const char sccsid[] = "strsep.c 8.1 (Berkeley) 6/4/93"; |
| 167 | static 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 | */ |
| 221 | char *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 |