1 /*- 2 * Copyright (c) 2003-2007 Tim Kientzle 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "archive_platform.h" 27 __FBSDID("$FreeBSD: head/lib/libarchive/archive_write_open_filename.c 191165 2009-04-17 00:39:35Z kientzle $"); 28 29 #ifdef HAVE_SYS_STAT_H 30 #include <sys/stat.h> 31 #endif 32 #ifdef HAVE_ERRNO_H 33 #include <errno.h> 34 #endif 35 #ifdef HAVE_FCNTL_H 36 #include <fcntl.h> 37 #endif 38 #ifdef HAVE_STDLIB_H 39 #include <stdlib.h> 40 #endif 41 #ifdef HAVE_STRING_H 42 #include <string.h> 43 #endif 44 #ifdef HAVE_UNISTD_H 45 #include <unistd.h> 46 #endif 47 48 #include "archive.h" 49 #include "archive_string.h" 50 51 #ifndef O_BINARY 52 #define O_BINARY 0 53 #endif 54 55 struct write_file_data { 56 int fd; 57 struct archive_mstring filename; 58 }; 59 60 static int file_close(struct archive *, void *); 61 static int file_open(struct archive *, void *); 62 static ssize_t file_write(struct archive *, void *, const void *buff, size_t); 63 static int open_filename(struct archive *, int, const void *); 64 65 int 66 archive_write_open_file(struct archive *a, const char *filename) 67 { 68 return (archive_write_open_filename(a, filename)); 69 } 70 71 int 72 archive_write_open_filename(struct archive *a, const char *filename) 73 { 74 75 if (filename == NULL || filename[0] == '\0') 76 return (archive_write_open_fd(a, 1)); 77 78 return (open_filename(a, 1, filename)); 79 } 80 81 int 82 archive_write_open_filename_w(struct archive *a, const wchar_t *filename) 83 { 84 85 if (filename == NULL || filename[0] == L'\0') 86 return (archive_write_open_fd(a, 1)); 87 88 return (open_filename(a, 0, filename)); 89 } 90 91 static int 92 open_filename(struct archive *a, int mbs_fn, const void *filename) 93 { 94 struct write_file_data *mine; 95 int r; 96 97 mine = (struct write_file_data *)calloc(1, sizeof(*mine)); 98 if (mine == NULL) { 99 archive_set_error(a, ENOMEM, "No memory"); 100 return (ARCHIVE_FATAL); 101 } 102 if (mbs_fn) 103 r = archive_mstring_copy_mbs(&mine->filename, filename); 104 else 105 r = archive_mstring_copy_wcs(&mine->filename, filename); 106 if (r < 0) { 107 if (errno == ENOMEM) { 108 archive_set_error(a, ENOMEM, "No memory"); 109 return (ARCHIVE_FATAL); 110 } 111 if (mbs_fn) 112 archive_set_error(a, ARCHIVE_ERRNO_MISC, 113 "Can't convert '%s' to WCS", 114 (const char *)filename); 115 else 116 archive_set_error(a, ARCHIVE_ERRNO_MISC, 117 "Can't convert '%S' to MBS", 118 (const wchar_t *)filename); 119 return (ARCHIVE_FAILED); 120 } 121 mine->fd = -1; 122 return (archive_write_open(a, mine, 123 file_open, file_write, file_close)); 124 } 125 126 static int 127 file_open(struct archive *a, void *client_data) 128 { 129 int flags; 130 struct write_file_data *mine; 131 struct stat st; 132 #if defined(_WIN32) && !defined(__CYGWIN__) 133 wchar_t *fullpath; 134 #endif 135 const wchar_t *wcs; 136 const char *mbs; 137 138 mine = (struct write_file_data *)client_data; 139 flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY; 140 141 /* 142 * Open the file. 143 */ 144 mbs = NULL; wcs = NULL; 145 #if defined(_WIN32) && !defined(__CYGWIN__) 146 if (archive_mstring_get_wcs(a, &mine->filename, &wcs) != 0) { 147 if (errno == ENOMEM) 148 archive_set_error(a, errno, "No memory"); 149 else { 150 archive_mstring_get_mbs(a, &mine->filename, &mbs); 151 archive_set_error(a, errno, 152 "Can't convert '%s' to WCS", mbs); 153 } 154 return (ARCHIVE_FATAL); 155 } 156 fullpath = __la_win_permissive_name_w(wcs); 157 if (fullpath != NULL) { 158 mine->fd = _wopen(fullpath, flags, 0666); 159 free(fullpath); 160 } else 161 mine->fd = _wopen(wcs, flags, 0666); 162 #else 163 if (archive_mstring_get_mbs(a, &mine->filename, &mbs) != 0) { 164 if (errno == ENOMEM) 165 archive_set_error(a, errno, "No memory"); 166 else { 167 archive_mstring_get_wcs(a, &mine->filename, &wcs); 168 archive_set_error(a, errno, 169 "Can't convert '%S' to MBS", wcs); 170 } 171 return (ARCHIVE_FATAL); 172 } 173 mine->fd = open(mbs, flags, 0666); 174 #endif 175 if (mine->fd < 0) { 176 if (mbs != NULL) 177 archive_set_error(a, errno, "Failed to open '%s'", mbs); 178 else 179 archive_set_error(a, errno, "Failed to open '%S'", wcs); 180 return (ARCHIVE_FATAL); 181 } 182 183 if (fstat(mine->fd, &st) != 0) { 184 if (mbs != NULL) 185 archive_set_error(a, errno, "Couldn't stat '%s'", mbs); 186 else 187 archive_set_error(a, errno, "Couldn't stat '%S'", wcs); 188 return (ARCHIVE_FATAL); 189 } 190 191 /* 192 * Set up default last block handling. 193 */ 194 if (archive_write_get_bytes_in_last_block(a) < 0) { 195 if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) || 196 S_ISFIFO(st.st_mode)) 197 /* Pad last block when writing to device or FIFO. */ 198 archive_write_set_bytes_in_last_block(a, 0); 199 else 200 /* Don't pad last block otherwise. */ 201 archive_write_set_bytes_in_last_block(a, 1); 202 } 203 204 /* 205 * If the output file is a regular file, don't add it to 206 * itself. If it's a device file, it's okay to add the device 207 * entry to the output archive. 208 */ 209 if (S_ISREG(st.st_mode)) 210 archive_write_set_skip_file(a, st.st_dev, st.st_ino); 211 212 return (ARCHIVE_OK); 213 } 214 215 static ssize_t 216 file_write(struct archive *a, void *client_data, const void *buff, 217 size_t length) 218 { 219 struct write_file_data *mine; 220 ssize_t bytesWritten; 221 222 mine = (struct write_file_data *)client_data; 223 for (;;) { 224 bytesWritten = write(mine->fd, buff, length); 225 if (bytesWritten <= 0) { 226 if (errno == EINTR) 227 continue; 228 archive_set_error(a, errno, "Write error"); 229 return (-1); 230 } 231 return (bytesWritten); 232 } 233 } 234 235 static int 236 file_close(struct archive *a, void *client_data) 237 { 238 struct write_file_data *mine = (struct write_file_data *)client_data; 239 240 (void)a; /* UNUSED */ 241 close(mine->fd); 242 archive_mstring_clean(&mine->filename); 243 free(mine); 244 return (ARCHIVE_OK); 245 } 246