/*
- Copyright (C) Andrew Tridgell 1999
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-/* backup handling code */
+ * Backup handling code.
+ *
+ * Copyright (C) 1999 Andrew Tridgell
+ * Copyright (C) 2003-2007 Wayne Davison
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, visit the http://fsf.org website.
+ */
#include "rsync.h"
extern int verbose;
-extern int backup_suffix_len;
-extern int backup_dir_len;
-extern unsigned int backup_dir_remainder;
-extern char backup_dir_buf[MAXPATHLEN];
-extern char *backup_suffix;
-extern char *backup_dir;
-
extern int am_root;
+extern int preserve_acls;
+extern int preserve_xattrs;
extern int preserve_devices;
extern int preserve_specials;
extern int preserve_links;
-extern int preserve_hard_links;
-extern int orig_umask;
extern int safe_symlinks;
+extern int backup_dir_len;
+extern unsigned int backup_dir_remainder;
+extern char backup_dir_buf[MAXPATHLEN];
+extern char *backup_suffix;
+extern char *backup_dir;
/* make a complete pathname for backup file */
-char *get_backup_name(char *fname)
+char *get_backup_name(const char *fname)
{
if (backup_dir) {
if (stringjoin(backup_dir_buf + backup_dir_len, backup_dir_remainder,
}
/* simple backup creates a backup with a suffix in the same directory */
-static int make_simple_backup(char *fname)
+static int make_simple_backup(const char *fname)
{
int rename_errno;
- char *fnamebak = get_backup_name(fname);
+ const char *fnamebak = get_backup_name(fname);
if (!fnamebak)
return 0;
****************************************************************************/
static int make_bak_dir(char *fullpath)
{
- STRUCT_STAT st;
+ statx sx;
+ struct file_struct *file;
char *rel = fullpath + backup_dir_len;
char *end = rel + strlen(rel);
char *p = end;
}
if (*p == '/') {
*p = '\0';
- if (do_mkdir(fullpath, 0777 & ~orig_umask) == 0)
+ if (mkdir_defmode(fullpath) == 0)
break;
if (errno != ENOENT) {
rsyserr(FERROR, errno,
if (p >= rel) {
/* Try to transfer the directory settings of the
* actual dir that the files are coming from. */
- if (do_stat(rel, &st) < 0) {
+ if (x_stat(rel, &sx.st, NULL) < 0) {
rsyserr(FERROR, errno,
"make_bak_dir stat %s failed",
full_fname(rel));
} else {
- do_lchown(fullpath, st.st_uid, st.st_gid);
- do_chmod(fullpath, st.st_mode);
+#ifdef SUPPORT_ACLS
+ sx.acc_acl = sx.def_acl = NULL;
+#endif
+#ifdef SUPPORT_XATTRS
+ sx.xattr = NULL;
+#endif
+ if (!(file = make_file(rel, NULL, NULL, 0, NO_FILTERS)))
+ continue;
+#ifdef SUPPORT_ACLS
+ if (preserve_acls && !S_ISLNK(file->mode)) {
+ get_acl(rel, &sx);
+ cache_acl(file, &sx);
+ free_acl(&sx);
+ }
+#endif
+#ifdef SUPPORT_XATTRS
+ if (preserve_xattrs) {
+ get_xattr(rel, &sx);
+ cache_xattr(file, &sx);
+ free_xattr(&sx);
+ }
+#endif
+ set_file_attrs(fullpath, file, NULL, NULL, 0);
+ unmake_file(file);
}
}
*p = '/';
p += strlen(p);
if (p == end)
break;
- if (do_mkdir(fullpath, 0777 & ~orig_umask) < 0) {
+ if (mkdir_defmode(fullpath) < 0) {
rsyserr(FERROR, errno, "make_bak_dir mkdir %s failed",
full_fname(fullpath));
goto failure;
}
/* robustly move a file, creating new directory structures if necessary */
-static int robust_move(char *src, char *dst)
+static int robust_move(const char *src, char *dst)
{
- if (robust_rename(src, dst, 0755) < 0 && (errno != ENOENT
- || make_bak_dir(dst) < 0 || robust_rename(src, dst, 0755) < 0))
+ if (robust_rename(src, dst, NULL, 0755) < 0
+ && (errno != ENOENT || make_bak_dir(dst) < 0
+ || robust_rename(src, dst, NULL, 0755) < 0))
return -1;
return 0;
}
/* If we have a --backup-dir, then we get here from make_backup().
* We will move the file to be deleted into a parallel directory tree. */
-static int keep_backup(char *fname)
+static int keep_backup(const char *fname)
{
- STRUCT_STAT st;
+ statx sx;
struct file_struct *file;
char *buf;
int kept = 0;
int ret_code;
/* return if no file to keep */
- if (do_lstat(fname, &st) < 0)
+ if (x_lstat(fname, &sx.st, NULL) < 0)
return 1;
+#ifdef SUPPORT_ACLS
+ sx.acc_acl = sx.def_acl = NULL;
+#endif
+#ifdef SUPPORT_XATTRS
+ sx.xattr = NULL;
+#endif
if (!(file = make_file(fname, NULL, NULL, 0, NO_FILTERS)))
return 1; /* the file could have disappeared */
- if (!(buf = get_backup_name(fname)))
+ if (!(buf = get_backup_name(fname))) {
+ unmake_file(file);
return 0;
+ }
+
+#ifdef SUPPORT_ACLS
+ if (preserve_acls && !S_ISLNK(file->mode)) {
+ get_acl(fname, &sx);
+ cache_acl(file, &sx);
+ free_acl(&sx);
+ }
+#endif
+#ifdef SUPPORT_XATTRS
+ if (preserve_xattrs) {
+ get_xattr(fname, &sx);
+ cache_xattr(file, &sx);
+ free_xattr(&sx);
+ }
+#endif
/* Check to see if this is a device file, or link */
if ((am_root && preserve_devices && IS_DEVICE(file->mode))
|| (preserve_specials && IS_SPECIAL(file->mode))) {
+ uint32 *devp = F_RDEV_P(file);
+ dev_t rdev = MAKEDEV(DEV_MAJOR(devp), DEV_MINOR(devp));
do_unlink(buf);
- if (do_mknod(buf, file->mode, file->u.rdev) < 0
+ if (do_mknod(buf, file->mode, rdev) < 0
&& (errno != ENOENT || make_bak_dir(buf) < 0
- || do_mknod(buf, file->mode, file->u.rdev) < 0)) {
+ || do_mknod(buf, file->mode, rdev) < 0)) {
rsyserr(FERROR, errno, "mknod %s failed",
full_fname(buf));
} else if (verbose > 2) {
#ifdef SUPPORT_LINKS
if (!kept && preserve_links && S_ISLNK(file->mode)) {
- if (safe_symlinks && unsafe_symlink(file->u.link, buf)) {
+ const char *sl = F_SYMLINK(file);
+ if (safe_symlinks && unsafe_symlink(sl, buf)) {
if (verbose) {
rprintf(FINFO, "ignoring unsafe symlink %s -> %s\n",
- full_fname(buf), file->u.link);
+ full_fname(buf), sl);
}
kept = 1;
} else {
do_unlink(buf);
- if (do_symlink(file->u.link, buf) < 0
+ if (do_symlink(sl, buf) < 0
&& (errno != ENOENT || make_bak_dir(buf) < 0
- || do_symlink(file->u.link, buf) < 0)) {
+ || do_symlink(sl, buf) < 0)) {
rsyserr(FERROR, errno, "link %s -> \"%s\"",
- full_fname(buf),
- file->u.link);
+ full_fname(buf), sl);
}
do_unlink(fname);
kept = 1;
if (!kept && !S_ISREG(file->mode)) {
rprintf(FINFO, "make_bak: skipping non-regular file %s\n",
fname);
+ unmake_file(file);
return 1;
}
if (robust_move(fname, buf) != 0) {
rsyserr(FERROR, errno, "keep_backup failed: %s -> \"%s\"",
full_fname(fname), buf);
- } else if (st.st_nlink > 1) {
+ } else if (sx.st.st_nlink > 1) {
/* If someone has hard-linked the file into the backup
* dir, rename() might return success but do nothing! */
robust_unlink(fname); /* Just in case... */
}
}
- set_file_attrs(buf, file, NULL, 0);
- free(file);
+ set_file_attrs(buf, file, NULL, fname, 0);
+ unmake_file(file);
if (verbose > 1) {
rprintf(FINFO, "backed up %s to %s\n",
/* main backup switch routine */
-int make_backup(char *fname)
+int make_backup(const char *fname)
{
if (backup_dir)
return keep_backup(fname);
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff