X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/e1ac7791fefaf2489d35d6e37707cc7573cade4d..ea53d161be54a474088df51063df128ff5da5af4:/backup.c

diff --git a/backup.c b/backup.c
index a92b2a68..7512d921 100644
--- a/backup.c
+++ b/backup.c
@@ -2,7 +2,7 @@
  * Backup handling code.
  *
  * Copyright (C) 1999 Andrew Tridgell
- * Copyright (C) 2003-2007 Wayne Davison
+ * Copyright (C) 2003-2009 Wayne Davison
  *
  * 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
@@ -97,7 +97,7 @@ int make_bak_dir(const char *fullpath)
 	char fbuf[MAXPATHLEN], *rel, *end, *p;
 	struct file_struct *file;
 	int len = backup_dir_len;
-	statx sx;
+	stat_x sx;
 
 	while (*fullpath == '.' && fullpath[1] == '/') {
 		fullpath += 2;
@@ -148,19 +148,25 @@ int make_bak_dir(const char *fullpath)
 #ifdef SUPPORT_ACLS
 				if (preserve_acls && !S_ISLNK(file->mode)) {
 					get_acl(rel, &sx);
-					cache_acl(file, &sx);
+					cache_tmp_acl(file, &sx);
 					free_acl(&sx);
 				}
 #endif
 #ifdef SUPPORT_XATTRS
 				if (preserve_xattrs) {
 					get_xattr(rel, &sx);
-					cache_xattr(file, &sx);
+					cache_tmp_xattr(file, &sx);
 					free_xattr(&sx);
 				}
 #endif
 				set_file_attrs(fbuf, file, NULL, NULL, 0);
 				unmake_file(file);
+#ifdef SUPPORT_ACLS
+				uncache_tmp_acls();
+#endif
+#ifdef SUPPORT_XATTRS
+				uncache_tmp_xattrs();
+#endif
 			}
 		}
 		*p = '/';
@@ -180,10 +186,19 @@ int make_bak_dir(const char *fullpath)
 /* robustly move a file, creating new directory structures if necessary */
 static int robust_move(const char *src, char *dst)
 {
-	if (robust_rename(src, dst, NULL, 0755) < 0
-	 && (errno != ENOENT || make_bak_dir(dst) < 0
-	  || robust_rename(src, dst, NULL, 0755) < 0))
-		return -1;
+	if (robust_rename(src, dst, NULL, 0755) < 0) {
+		int save_errno = errno ? errno : EINVAL; /* 0 paranoia */
+		if (errno == ENOENT && make_bak_dir(dst) == 0) {
+			if (robust_rename(src, dst, NULL, 0755) < 0)
+				save_errno = errno ? errno : save_errno;
+			else
+				save_errno = 0;
+		}
+		if (save_errno) {
+			errno = save_errno;
+			return -1;
+		}
+	}
 	return 0;
 }
 
@@ -192,9 +207,10 @@ static int robust_move(const char *src, char *dst)
  * We will move the file to be deleted into a parallel directory tree. */
 static int keep_backup(const char *fname)
 {
-	statx sx;
+	stat_x sx;
 	struct file_struct *file;
 	char *buf;
+	int save_preserve_xattrs = preserve_xattrs;
 	int kept = 0;
 	int ret_code;
 
@@ -213,20 +229,26 @@ static int keep_backup(const char *fname)
 
 	if (!(buf = get_backup_name(fname))) {
 		unmake_file(file);
+#ifdef SUPPORT_ACLS
+		uncache_tmp_acls();
+#endif
+#ifdef SUPPORT_XATTRS
+		uncache_tmp_xattrs();
+#endif
 		return 0;
 	}
 
 #ifdef SUPPORT_ACLS
 	if (preserve_acls && !S_ISLNK(file->mode)) {
 		get_acl(fname, &sx);
-		cache_acl(file, &sx);
+		cache_tmp_acl(file, &sx);
 		free_acl(&sx);
 	}
 #endif
 #ifdef SUPPORT_XATTRS
 	if (preserve_xattrs) {
 		get_xattr(fname, &sx);
-		cache_xattr(file, &sx);
+		cache_tmp_xattr(file, &sx);
 		free_xattr(&sx);
 	}
 #endif
@@ -234,15 +256,23 @@ static int keep_backup(const char *fname)
 	/* 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));
+		int save_errno;
 		do_unlink(buf);
-		if (do_mknod(buf, file->mode, rdev) < 0
-		    && (errno != ENOENT || make_bak_dir(buf) < 0
-		     || do_mknod(buf, file->mode, rdev) < 0)) {
-			rsyserr(FERROR, errno, "mknod %s failed",
-				full_fname(buf));
-		} else if (verbose > 2) {
+		if (do_mknod(buf, file->mode, sx.st.st_rdev) < 0) {
+			save_errno = errno ? errno : EINVAL; /* 0 paranoia */
+			if (errno == ENOENT && make_bak_dir(buf) == 0) {
+				if (do_mknod(buf, file->mode, sx.st.st_rdev) < 0)
+					save_errno = errno ? errno : save_errno;
+				else
+					save_errno = 0;
+			}
+			if (save_errno) {
+				rsyserr(FERROR, save_errno, "mknod %s failed",
+					full_fname(buf));
+			}
+		} else
+			save_errno = 0;
+		if (verbose > 2 && save_errno == 0) {
 			rprintf(FINFO, "make_backup: DEVICE %s successful.\n",
 				fname);
 		}
@@ -252,11 +282,18 @@ static int keep_backup(const char *fname)
 
 	if (!kept && S_ISDIR(file->mode)) {
 		/* make an empty directory */
-		if (do_mkdir(buf, file->mode) < 0
-		    && (errno != ENOENT || make_bak_dir(buf) < 0
-		     || do_mkdir(buf, file->mode) < 0)) {
-			rsyserr(FINFO, errno, "mkdir %s failed",
-				full_fname(buf));
+		if (do_mkdir(buf, file->mode) < 0) {
+			int save_errno = errno ? errno : EINVAL; /* 0 paranoia */
+			if (errno == ENOENT && make_bak_dir(buf) == 0) {
+				if (do_mkdir(buf, file->mode) < 0)
+					save_errno = errno ? errno : save_errno;
+				else
+					save_errno = 0;
+			}
+			if (save_errno) {
+				rsyserr(FINFO, save_errno, "mkdir %s failed",
+					full_fname(buf));
+			}
 		}
 
 		ret_code = do_rmdir(fname);
@@ -270,7 +307,7 @@ static int keep_backup(const char *fname)
 #ifdef SUPPORT_LINKS
 	if (!kept && preserve_links && S_ISLNK(file->mode)) {
 		const char *sl = F_SYMLINK(file);
-		if (safe_symlinks && unsafe_symlink(sl, buf)) {
+		if (safe_symlinks && unsafe_symlink(sl, fname)) {
 			if (verbose) {
 				rprintf(FINFO, "ignoring unsafe symlink %s -> %s\n",
 					full_fname(buf), sl);
@@ -278,11 +315,18 @@ static int keep_backup(const char *fname)
 			kept = 1;
 		} else {
 			do_unlink(buf);
-			if (do_symlink(sl, buf) < 0
-			    && (errno != ENOENT || make_bak_dir(buf) < 0
-			     || do_symlink(sl, buf) < 0)) {
-				rsyserr(FERROR, errno, "link %s -> \"%s\"",
-					full_fname(buf), sl);
+			if (do_symlink(sl, buf) < 0) {
+				int save_errno = errno ? errno : EINVAL; /* 0 paranoia */
+				if (errno == ENOENT && make_bak_dir(buf) == 0) {
+					if (do_symlink(sl, buf) < 0)
+						save_errno = errno ? errno : save_errno;
+					else
+						save_errno = 0;
+				}
+				if (save_errno) {
+					rsyserr(FERROR, save_errno, "link %s -> \"%s\"",
+						full_fname(buf), sl);
+				}
 			}
 			do_unlink(fname);
 			kept = 1;
@@ -294,6 +338,12 @@ static int keep_backup(const char *fname)
 		rprintf(FINFO, "make_bak: skipping non-regular file %s\n",
 			fname);
 		unmake_file(file);
+#ifdef SUPPORT_ACLS
+		uncache_tmp_acls();
+#endif
+#ifdef SUPPORT_XATTRS
+		uncache_tmp_xattrs();
+#endif
 		return 1;
 	}
 
@@ -308,8 +358,16 @@ static int keep_backup(const char *fname)
 			robust_unlink(fname); /* Just in case... */
 		}
 	}
+	preserve_xattrs = 0;
 	set_file_attrs(buf, file, NULL, fname, 0);
+	preserve_xattrs = save_preserve_xattrs;
 	unmake_file(file);
+#ifdef SUPPORT_ACLS
+	uncache_tmp_acls();
+#endif
+#ifdef SUPPORT_XATTRS
+	uncache_tmp_xattrs();
+#endif
 
 	if (verbose > 1) {
 		rprintf(FINFO, "backed up %s to %s\n",