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 28 #ifdef HAVE_SYS_STAT_H 29 #include <sys/stat.h> 30 #endif 31 #ifdef HAVE_ERRNO_H 32 #include <errno.h> 33 #endif 34 #ifdef HAVE_FCNTL_H 35 #include <fcntl.h> 36 #endif 37 #ifdef HAVE_STDLIB_H 38 #include <stdlib.h> 39 #endif 40 #ifdef HAVE_STRING_H 41 #include <string.h> 42 #endif 43 #ifdef HAVE_UNISTD_H 44 #include <unistd.h> 45 #endif 46 47 #include "archive.h" 48 #include "archive_private.h" 49 #include "archive_string.h" 50 51 #ifndef O_BINARY 52 #define O_BINARY 0 53 #endif 54 #ifndef O_CLOEXEC 55 #define O_CLOEXEC 0 56 #endif 57 58 struct write_file_data { 59 int fd; 60 struct archive_mstring filename; 61 }; 62 63 static int file_close(struct archive *, void *); 64 static int file_free(struct archive *, void *); 65 static int file_open(struct archive *, void *); 66 static ssize_t file_write(struct archive *, void *, const void *buff, size_t); 67 static int open_filename(struct archive *, int, const void *); 68 69 int 70 archive_write_open_file(struct archive *a, const char *filename) 71 { 72 return (archive_write_open_filename(a, filename)); 73 } 74 75 int 76 archive_write_open_filename(struct archive *a, const char *filename) 77 { 78 79 if (filename == NULL || filename[0] == '\0') 80 return (archive_write_open_fd(a, 1)); 81 82 return (open_filename(a, 1, filename)); 83 } 84 85 int 86 archive_write_open_filename_w(struct archive *a, const wchar_t *filename) 87 { 88 89 if (filename == NULL || filename[0] == L'\0') 90 return (archive_write_open_fd(a, 1)); 91 92 return (open_filename(a, 0, filename)); 93 } 94 95 static int 96 open_filename(struct archive *a, int mbs_fn, const void *filename) 97 { 98 struct write_file_data *mine; 99 int r; 100 101 mine = calloc(1, sizeof(*mine)); 102 if (mine == NULL) { 103 archive_set_error(a, ENOMEM, "No memory"); 104 return (ARCHIVE_FATAL); 105 } 106 if (mbs_fn) 107 r = archive_mstring_copy_mbs(&mine->filename, filename); 108 else 109 r = archive_mstring_copy_wcs(&mine->filename, filename); 110 if (r < 0) { 111 free(mine); 112 if (errno == ENOMEM) { 113 archive_set_error(a, ENOMEM, "No memory"); 114 return (ARCHIVE_FATAL); 115 } 116 if (mbs_fn) 117 archive_set_error(a, ARCHIVE_ERRNO_MISC, 118 "Can't convert '%s' to WCS", 119 (const char *)filename); 120 else 121 archive_set_error(a, ARCHIVE_ERRNO_MISC, 122 "Can't convert '%ls' to MBS", 123 (const wchar_t *)filename); 124 return (ARCHIVE_FAILED); 125 } 126 mine->fd = -1; 127 return (archive_write_open2(a, mine, 128 file_open, file_write, file_close, file_free)); 129 } 130 131 static int 132 file_open(struct archive *a, void *client_data) 133 { 134 int flags; 135 struct write_file_data *mine; 136 struct stat st; 137 #if defined(_WIN32) && !defined(__CYGWIN__) 138 wchar_t *fullpath; 139 #endif 140 const wchar_t *wcs; 141 const char *mbs; 142 143 mine = (struct write_file_data *)client_data; 144 flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_CLOEXEC; 145 146 /* 147 * Open the file. 148 */ 149 mbs = NULL; wcs = NULL; 150 #if defined(_WIN32) && !defined(__CYGWIN__) 151 if (archive_mstring_get_wcs(a, &mine->filename, &wcs) != 0) { 152 if (errno == ENOMEM) 153 archive_set_error(a, errno, "No memory"); 154 else { 155 archive_mstring_get_mbs(a, &mine->filename, &mbs); 156 archive_set_error(a, errno, 157 "Can't convert '%s' to WCS", mbs); 158 } 159 return (ARCHIVE_FATAL); 160 } 161 fullpath = __la_win_permissive_name_w(wcs); 162 if (fullpath != NULL) { 163 mine->fd = _wopen(fullpath, flags, 0666); 164 free(fullpath); 165 } else 166 mine->fd = _wopen(wcs, flags, 0666); 167 #else 168 if (archive_mstring_get_mbs(a, &mine->filename, &mbs) != 0) { 169 if (errno == ENOMEM) 170 archive_set_error(a, errno, "No memory"); 171 else { 172 archive_mstring_get_wcs(a, &mine->filename, &wcs); 173 archive_set_error(a, errno, 174 "Can't convert '%ls' to MBS", wcs); 175 } 176 return (ARCHIVE_FATAL); 177 } 178 mine->fd = open(mbs, flags, 0666); 179 __archive_ensure_cloexec_flag(mine->fd); 180 #endif 181 if (mine->fd < 0) { 182 if (mbs != NULL) 183 archive_set_error(a, errno, "Failed to open '%s'", mbs); 184 else 185 archive_set_error(a, errno, "Failed to open '%ls'", wcs); 186 return (ARCHIVE_FATAL); 187 } 188 189 if (fstat(mine->fd, &st) != 0) { 190 if (mbs != NULL) 191 archive_set_error(a, errno, "Couldn't stat '%s'", mbs); 192 else 193 archive_set_error(a, errno, "Couldn't stat '%ls'", wcs); 194 close(mine->fd); 195 mine->fd = -1; 196 return (ARCHIVE_FATAL); 197 } 198 199 /* 200 * Set up default last block handling. 201 */ 202 if (archive_write_get_bytes_in_last_block(a) < 0) { 203 if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) || 204 S_ISFIFO(st.st_mode)) 205 /* Pad last block when writing to device or FIFO. */ 206 archive_write_set_bytes_in_last_block(a, 0); 207 else 208 /* Don't pad last block otherwise. */ 209 archive_write_set_bytes_in_last_block(a, 1); 210 } 211 212 /* 213 * If the output file is a regular file, don't add it to 214 * itself. If it's a device file, it's okay to add the device 215 * entry to the output archive. 216 */ 217 if (S_ISREG(st.st_mode)) 218 archive_write_set_skip_file(a, st.st_dev, st.st_ino); 219 220 return (ARCHIVE_OK); 221 } 222 223 static ssize_t 224 file_write(struct archive *a, void *client_data, const void *buff, 225 size_t length) 226 { 227 struct write_file_data *mine; 228 ssize_t bytesWritten; 229 230 mine = (struct write_file_data *)client_data; 231 for (;;) { 232 bytesWritten = write(mine->fd, buff, length); 233 if (bytesWritten < 0) { 234 if (errno == EINTR) 235 continue; 236 archive_set_error(a, errno, "Write error"); 237 return (-1); 238 } 239 return (bytesWritten); 240 } 241 } 242 243 static int 244 file_close(struct archive *a, void *client_data) 245 { 246 struct write_file_data *mine = (struct write_file_data *)client_data; 247 248 (void)a; /* UNUSED */ 249 250 if (mine == NULL) 251 return (ARCHIVE_FATAL); 252 253 if (mine->fd >= 0) 254 close(mine->fd); 255 256 return (ARCHIVE_OK); 257 } 258 259 static int 260 file_free(struct archive *a, void *client_data) 261 { 262 struct write_file_data *mine = (struct write_file_data *)client_data; 263 264 (void)a; /* UNUSED */ 265 266 if (mine == NULL) 267 return (ARCHIVE_OK); 268 269 archive_mstring_clean(&mine->filename); 270 free(mine); 271 return (ARCHIVE_OK); 272 } 273
Indexes created Wed Jul 15 00:26:21 UTC 2026