2 * Encode and decode standard Unix attributes and
3 * Extended attributes for Win32 and
4 * other non-Unix systems, or Unix systems with ACLs, ...
6 * Kern Sibbald, October MMII
12 Copyright (C) 2000-2003 Kern Sibbald and John Walker
14 This program is free software; you can redistribute it and/or
15 modify it under the terms of the GNU General Public License as
16 published by the Free Software Foundation; either version 2 of
17 the License, or (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 General Public License for more details.
24 You should have received a copy of the GNU General Public
25 License along with this program; if not, write to the Free
26 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
38 /* Forward referenced subroutines */
40 int set_win32_attributes(void *jcr, char *fname, char *ofile, char *lname,
41 int type, int stream, struct stat *statp,
42 char *attribsEx, int *ofd);
43 void unix_name_to_win32(POOLMEM **win32_name, char *name);
44 extern "C" HANDLE get_osfhandle(int fd);
45 void win_error(void *jcr, char *prefix, POOLMEM *ofile);
49 /*=============================================================*/
51 /* *** A l l S y s t e m s *** */
53 /*=============================================================*/
56 /* Encode a stat structure into a base64 character string */
57 void encode_stat(char *buf, struct stat *statp, uint32_t LinkFI)
61 * NOTE: we should use rdev as major and minor device if
62 * it is a block or char device (S_ISCHR(statp->st_mode)
63 * or S_ISBLK(statp->st_mode)). In all other cases,
67 p += to_base64((int64_t)statp->st_dev, p);
68 *p++ = ' '; /* separate fields with a space */
69 p += to_base64((int64_t)statp->st_ino, p);
71 p += to_base64((int64_t)statp->st_mode, p);
73 p += to_base64((int64_t)statp->st_nlink, p);
75 p += to_base64((int64_t)statp->st_uid, p);
77 p += to_base64((int64_t)statp->st_gid, p);
79 p += to_base64((int64_t)statp->st_rdev, p);
81 p += to_base64((int64_t)statp->st_size, p);
83 p += to_base64((int64_t)statp->st_blksize, p);
85 p += to_base64((int64_t)statp->st_blocks, p);
87 p += to_base64((int64_t)statp->st_atime, p);
89 p += to_base64((int64_t)statp->st_mtime, p);
91 p += to_base64((int64_t)statp->st_ctime, p);
93 p += to_base64((int64_t)LinkFI, p);
100 /* Decode a stat packet from base64 characters */
102 decode_stat(char *buf, struct stat *statp, uint32_t *LinkFI)
107 p += from_base64(&val, p);
109 p++; /* skip space */
110 p += from_base64(&val, p);
113 p += from_base64(&val, p);
114 statp->st_mode = val;
116 p += from_base64(&val, p);
117 statp->st_nlink = val;
119 p += from_base64(&val, p);
122 p += from_base64(&val, p);
125 p += from_base64(&val, p);
126 statp->st_rdev = val;
128 p += from_base64(&val, p);
129 statp->st_size = val;
131 p += from_base64(&val, p);
132 statp->st_blksize = val;
134 p += from_base64(&val, p);
135 statp->st_blocks = val;
137 p += from_base64(&val, p);
138 statp->st_atime = val;
140 p += from_base64(&val, p);
141 statp->st_mtime = val;
143 p += from_base64(&val, p);
144 statp->st_ctime = val;
145 /* Optional FileIndex of hard linked file data */
146 if (*p == ' ' || (*p != 0 && *(p+1) == ' ')) {
148 p += from_base64(&val, p);
149 *LinkFI = (uint32_t)val;
156 * Set file modes, permissions and times
158 * fname is the original filename
159 * ofile is the output filename (may be in a different directory)
161 * Returns: 1 on success
164 int set_attributes(void *jcr, char *fname, char *ofile, char *lname,
165 int type, int stream, struct stat *statp,
166 char *attribsEx, int *ofd)
171 if (set_win32_attributes(jcr, fname, ofile, lname, type, stream,
172 statp, attribsEx, ofd)) {
176 * If Windows stuff failed, e.g. attempt to restore Unix file
177 * to Windows, simply fall through and we will do it the
183 close(*ofd); /* first close file */
187 ut.actime = statp->st_atime;
188 ut.modtime = statp->st_mtime;
190 /* ***FIXME**** optimize -- don't do if already correct */
191 if (type == FT_LNK) {
192 if (lchown(ofile, statp->st_uid, statp->st_gid) < 0) {
193 Jmsg2(jcr, M_ERROR, 0, "Unable to set file owner %s: ERR=%s\n",
194 ofile, strerror(errno));
198 if (chown(ofile, statp->st_uid, statp->st_gid) < 0) {
199 Jmsg2(jcr, M_ERROR, 0, "Unable to set file owner %s: ERR=%s\n",
200 ofile, strerror(errno));
204 if (chmod(ofile, statp->st_mode) < 0) {
205 Jmsg2(jcr, M_ERROR, 0, "Unable to set file modes %s: ERR=%s\n",
206 ofile, strerror(errno));
213 if (utime(ofile, &ut) < 0) {
214 Jmsg2(jcr, M_ERROR, 0, "Unable to set file times %s: ERR=%s\n",
215 ofile, strerror(errno));
222 /*=============================================================*/
224 /* * * * U n i x * * * * */
226 /*=============================================================*/
231 * If you have a Unix system with extended attributes (e.g.
232 * ACLs for Solaris, do it here.
234 int encode_attribsEx(void *jcr, char *attribsEx, FF_PKT *ff_pkt)
236 *attribsEx = 0; /* no extended attributes */
237 return STREAM_UNIX_ATTRIBUTES;
244 /*=============================================================*/
246 /* * * * W i n 3 2 * * * * */
248 /*=============================================================*/
252 int encode_attribsEx(void *jcr, char *attribsEx, FF_PKT *ff_pkt)
255 WIN32_FILE_ATTRIBUTE_DATA atts;
258 attribsEx[0] = 0; /* no extended attributes */
260 unix_name_to_win32(&ff_pkt->sys_fname, ff_pkt->fname);
261 if (!GetFileAttributesEx(ff_pkt->sys_fname, GetFileExInfoStandard,
263 win_error(jcr, "GetFileAttributesEx:", ff_pkt->sys_fname);
264 return STREAM_WIN32_ATTRIBUTES;
267 p += to_base64((uint64_t)atts.dwFileAttributes, p);
268 *p++ = ' '; /* separate fields with a space */
269 li.LowPart = atts.ftCreationTime.dwLowDateTime;
270 li.HighPart = atts.ftCreationTime.dwHighDateTime;
271 p += to_base64((uint64_t)li.QuadPart, p);
273 li.LowPart = atts.ftLastAccessTime.dwLowDateTime;
274 li.HighPart = atts.ftLastAccessTime.dwHighDateTime;
275 p += to_base64((uint64_t)li.QuadPart, p);
277 li.LowPart = atts.ftLastWriteTime.dwLowDateTime;
278 li.HighPart = atts.ftLastWriteTime.dwHighDateTime;
279 p += to_base64((uint64_t)li.QuadPart, p);
281 p += to_base64((uint64_t)atts.nFileSizeHigh, p);
283 p += to_base64((uint64_t)atts.nFileSizeLow, p);
285 return STREAM_WIN32_ATTRIBUTES;
288 /* Define attributes that are legal to set with SetFileAttributes() */
289 #define SET_ATTRS ( \
290 FILE_ATTRIBUTE_ARCHIVE| \
291 FILE_ATTRIBUTE_HIDDEN| \
292 FILE_ATTRIBUTE_NORMAL| \
293 FILE_ATTRIBUTE_NOT_CONTENT_INDEXED| \
294 FILE_ATTRIBUTE_OFFLINE| \
295 FILE_ATTRIBUTE_READONLY| \
296 FILE_ATTRIBUTE_SYSTEM| \
297 FILE_ATTRIBUTE_TEMPORARY)
301 * Set Extended File Attributes for Win32
303 * fname is the original filename
304 * ofile is the output filename (may be in a different directory)
306 * Returns: 1 on success
310 int set_win32_attributes(void *jcr, char *fname, char *ofile, char *lname,
311 int type, int stream, struct stat *statp,
312 char *attribsEx, int *ofd)
316 WIN32_FILE_ATTRIBUTE_DATA atts;
319 POOLMEM *win32_ofile;
321 if (!p || !*p) { /* we should have attributes */
322 Dmsg2(100, "Attributes missing. of=%s ofd=%d\n", ofile, *ofd);
329 Dmsg2(100, "Attribs %s = %s\n", ofile, attribsEx);
332 p += from_base64(&val, p);
333 atts.dwFileAttributes = val;
334 p++; /* skip space */
335 p += from_base64(&val, p);
337 atts.ftCreationTime.dwLowDateTime = li.LowPart;
338 atts.ftCreationTime.dwHighDateTime = li.HighPart;
339 p++; /* skip space */
340 p += from_base64(&val, p);
342 atts.ftLastAccessTime.dwLowDateTime = li.LowPart;
343 atts.ftLastAccessTime.dwHighDateTime = li.HighPart;
344 p++; /* skip space */
345 p += from_base64(&val, p);
347 atts.ftLastWriteTime.dwLowDateTime = li.LowPart;
348 atts.ftLastWriteTime.dwHighDateTime = li.HighPart;
350 p += from_base64(&val, p);
351 atts.nFileSizeHigh = val;
353 p += from_base64(&val, p);
354 atts.nFileSizeLow = val;
356 /* At this point, we have reconstructed the WIN32_FILE_ATTRIBUTE_DATA pkt */
358 /* Convert to Windows path format */
359 win32_ofile = get_pool_memory(PM_FNAME);
360 unix_name_to_win32(&win32_ofile, ofile);
363 Dmsg1(100, "File not open: %s\n", ofile);
364 fid = open(ofile, O_RDWR|O_BINARY); /* attempt to open the file */
371 Dmsg1(100, "SetFileTime %s\n", ofile);
372 stat = SetFileTime(get_osfhandle(*ofd),
373 &atts.ftCreationTime,
374 &atts.ftLastAccessTime,
375 &atts.ftLastWriteTime);
377 win_error(jcr, "SetFileTime:", win32_ofile);
383 Dmsg1(100, "SetFileAtts %s\n", ofile);
384 stat = SetFileAttributes(win32_ofile, atts.dwFileAttributes & SET_ATTRS);
386 win_error(jcr, "SetFileAttributes:", win32_ofile);
388 free_pool_memory(win32_ofile);
392 void win_error(void *vjcr, char *prefix, POOLMEM *win32_ofile)
394 JCR *jcr = (JCR *)vjcr;
395 DWORD lerror = GetLastError();
397 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|
398 FORMAT_MESSAGE_FROM_SYSTEM,
405 Dmsg3(100, "Error in %s on file %s: ERR=%s\n", prefix, win32_ofile, msg);
406 Jmsg3(jcr, M_INFO, 0, _("Error in %s file %s: ERR=%s\n"), prefix, win32_ofile, msg);
410 /* Cygwin API definition */
411 extern "C" void cygwin_conv_to_win32_path(const char *path, char *win32_path);
413 void unix_name_to_win32(POOLMEM **win32_name, char *name)
415 /* One extra byte should suffice, but we double it */
416 *win32_name = check_pool_memory_size(*win32_name, 2*strlen(name)+1);
417 cygwin_conv_to_win32_path(name, *win32_name);
420 #endif /* HAVE_CYGWIN */