[SCM] The rsync repository. - branch master updated

Rsync CVS commit messages rsync-cvs at lists.samba.org
Sat Jan 29 23:06:45 MST 2011


The branch, master has been updated
       via  57edc48 Avoid changing file_extra_cnt during deletion.
       via  69be312 Some minor variable and flag cleanup.
      from  4b4bcbe Optimize finding the sum that matches our --inplace position.

;a=shortlog;h=master


- Log -----------------------------------------------------------------
commit 57edc4808f566fbaa58ec96bc7e543b1ccb92ab9
Author: Matt McCutchen <matt at mattmccutchen.net>
Date:   Sat Jan 29 19:25:53 2011 -0800

    Avoid changing file_extra_cnt during deletion.
    
    The I/O code can receive incremental file-list chunks during deletion,
    and their OPT_EXTRA fields would get corrupted when file_extra_cnt is
    incremented.
    
    Instead of temporarily enabling uid_ndx to find out whether the user
    owns a file, have make_file() set a flag for that purpose.
    
    Applied with a few minor tweaks by Wayne.  Fixes bug 7936.

commit 69be312b5e335430e3e896e200def6a7c6f89c8d
Author: Wayne Davison <wayned at samba.org>
Date:   Sat Jan 29 21:50:36 2011 -0800

    Some minor variable and flag cleanup.

-----------------------------------------------------------------------

Summary of changes:
 delete.c    |   10 +---------
 flist.c     |   15 ++++++++-------
 generator.c |   15 ++-------------
 log.c       |    2 --
 rsync.c     |    2 --
 rsync.h     |    7 ++++++-
 6 files changed, 17 insertions(+), 34 deletions(-)


Changeset truncated at 500 lines:

diff --git a/delete.c b/delete.c
index fcdf86b..6be88d1 100644
--- a/delete.c
+++ b/delete.c
@@ -28,7 +28,6 @@ extern int max_delete;
 extern char *backup_dir;
 extern char *backup_suffix;
 extern int backup_suffix_len;
-extern uid_t our_uid;
 extern struct stats stats;
 
 int ignore_perishable = 0;
@@ -98,7 +97,7 @@ static enum delret delete_dir_contents(char *fname, uint16 flags)
 		}
 
 		strlcpy(p, fp->basename, remainder);
-		if (!(fp->mode & S_IWUSR) && !am_root && (uid_t)F_OWNER(fp) == our_uid)
+		if (!(fp->mode & S_IWUSR) && !am_root && fp->flags & FLAG_OWNED_BY_US)
 			do_chmod(fname, fp->mode | S_IWUSR);
 		/* Save stack by recursing to ourself directly. */
 		if (S_ISDIR(fp->mode)) {
@@ -143,19 +142,12 @@ enum delret delete_item(char *fbuf, uint16 mode, uint16 flags)
 		do_chmod(fbuf, mode | S_IWUSR);
 
 	if (S_ISDIR(mode) && !(flags & DEL_DIR_IS_EMPTY)) {
-		int save_uid_ndx = uid_ndx;
 		/* This only happens on the first call to delete_item() since
 		 * delete_dir_contents() always calls us w/DEL_DIR_IS_EMPTY. */
-		if (!uid_ndx)
-			uid_ndx = ++file_extra_cnt;
 		ignore_perishable = 1;
 		/* If DEL_RECURSE is not set, this just reports emptiness. */
 		ret = delete_dir_contents(fbuf, flags);
 		ignore_perishable = 0;
-		if (!save_uid_ndx) {
-			--file_extra_cnt;
-			uid_ndx = 0;
-		}
 		if (ret == DR_NOT_EMPTY || ret == DR_AT_LIMIT)
 			goto check_ret;
 		/* OK: try to delete the directory. */
diff --git a/flist.c b/flist.c
index 4a50583..f90c286 100644
--- a/flist.c
+++ b/flist.c
@@ -52,12 +52,9 @@ extern int preserve_devices;
 extern int preserve_specials;
 extern int delete_during;
 extern int missing_args;
-extern int uid_ndx;
-extern int gid_ndx;
 extern int eol_nulls;
 extern int relative_paths;
 extern int implied_dirs;
-extern int file_extra_cnt;
 extern int ignore_perishable;
 extern int non_perishable_cnt;
 extern int prune_empty_dirs;
@@ -72,6 +69,7 @@ extern int sender_symlink_iconv;
 extern int output_needs_newline;
 extern int sender_keeps_checksum;
 extern int unsort_ndx;
+extern uid_t our_uid;
 extern struct stats stats;
 extern char *filesfrom_host;
 extern char *usermap, *groupmap;
@@ -1374,10 +1372,12 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
 	}
 #endif
 	file->mode = st.st_mode;
-	if (uid_ndx) /* Check uid_ndx instead of preserve_uid for del support */
+	if (preserve_uid)
 		F_OWNER(file) = st.st_uid;
-	if (gid_ndx) /* Check gid_ndx instead of preserve_gid for del support */
+	if (preserve_gid)
 		F_GROUP(file) = st.st_gid;
+	if (am_generator && st.st_uid == our_uid)
+		file->flags |= FLAG_OWNED_BY_US;
 
 	if (basename != thisname)
 		file->dirname = lastdir;
@@ -3177,13 +3177,14 @@ char *f_name(const struct file_struct *f, char *fbuf)
  * of the dirname string, and also indicates that "dirname" is a MAXPATHLEN
  * buffer (the functions we call will append names onto the end, but the old
  * dir value will be restored on exit). */
-struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
+struct file_list *get_dirlist(char *dirname, int dlen, int flags)
 {
 	struct file_list *dirlist;
 	char dirbuf[MAXPATHLEN];
 	int save_recurse = recurse;
 	int save_xfer_dirs = xfer_dirs;
 	int save_prune_empty_dirs = prune_empty_dirs;
+	int senddir_fd = flags & GDL_IGNORE_FILTER_RULES ? -2 : -1;
 
 	if (dlen < 0) {
 		dlen = strlcpy(dirbuf, dirname, MAXPATHLEN);
@@ -3196,7 +3197,7 @@ struct file_list *get_dirlist(char *dirname, int dlen, int ignore_filter_rules)
 
 	recurse = 0;
 	xfer_dirs = 1;
-	send_directory(ignore_filter_rules ? -2 : -1, dirlist, dirname, dlen, FLAG_CONTENT_DIR);
+	send_directory(senddir_fd, dirlist, dirname, dlen, FLAG_CONTENT_DIR);
 	xfer_dirs = save_xfer_dirs;
 	recurse = save_recurse;
 	if (INFO_GTE(PROGRESS, 1))
diff --git a/generator.c b/generator.c
index 8fd4a19..d17e3b9 100644
--- a/generator.c
+++ b/generator.c
@@ -44,8 +44,6 @@ extern int preserve_hard_links;
 extern int preserve_executability;
 extern int preserve_perms;
 extern int preserve_times;
-extern int uid_ndx;
-extern int gid_ndx;
 extern int delete_mode;
 extern int delete_before;
 extern int delete_during;
@@ -278,7 +276,6 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
 	struct file_list *dirlist;
 	char delbuf[MAXPATHLEN];
 	int dlen, i;
-	int save_uid_ndx = uid_ndx;
 
 	if (!fbuf) {
 		change_local_filter_dir(NULL, 0, 0);
@@ -310,9 +307,6 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
 			return;
 	}
 
-	if (!uid_ndx)
-		uid_ndx = ++file_extra_cnt;
-
 	dirlist = get_dirlist(fbuf, dlen, 0);
 
 	/* If an item in dirlist is not found in flist, delete it
@@ -332,7 +326,7 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
 		 * a delete_item call with a DEL_MAKE_ROOM flag. */
 		if (flist_find_ignore_dirness(cur_flist, fp) < 0) {
 			int flags = DEL_RECURSE;
-			if (!(fp->mode & S_IWUSR) && !am_root && (uid_t)F_OWNER(fp) == our_uid)
+			if (!(fp->mode & S_IWUSR) && !am_root && fp->flags & FLAG_OWNED_BY_US)
 				flags |= DEL_NO_UID_WRITE;
 			f_name(fp, delbuf);
 			if (delete_during == 2) {
@@ -344,11 +338,6 @@ static void delete_in_dir(char *fbuf, struct file_struct *file, dev_t *fs_dev)
 	}
 
 	flist_free(dirlist);
-
-	if (!save_uid_ndx) {
-		--file_extra_cnt;
-		uid_ndx = 0;
-	}
 }
 
 /* This deletes any files on the receiving side that are not present on the
@@ -1233,7 +1222,7 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
 
 		if (need_fuzzy_dirlist && S_ISREG(file->mode)) {
 			strlcpy(fnamecmpbuf, dn, sizeof fnamecmpbuf);
-			fuzzy_dirlist = get_dirlist(fnamecmpbuf, -1, 1);
+			fuzzy_dirlist = get_dirlist(fnamecmpbuf, -1, GDL_IGNORE_FILTER_RULES);
 			need_fuzzy_dirlist = 0;
 		}
 
diff --git a/log.c b/log.c
index 0f6f90c..f842e55 100644
--- a/log.c
+++ b/log.c
@@ -37,8 +37,6 @@ extern int protocol_version;
 extern int always_checksum;
 extern int preserve_times;
 extern int msgs2stderr;
-extern int uid_ndx;
-extern int gid_ndx;
 extern int stdout_format_has_i;
 extern int stdout_format_has_o_or_i;
 extern int logfile_format_has_i;
diff --git a/rsync.c b/rsync.c
index 17ce76a..24b9c75 100644
--- a/rsync.c
+++ b/rsync.c
@@ -41,8 +41,6 @@ extern int am_generator;
 extern int am_starting_up;
 extern int allow_8bit_chars;
 extern int protocol_version;
-extern int uid_ndx;
-extern int gid_ndx;
 extern int inc_recurse;
 extern int inplace;
 extern int flist_eof;
diff --git a/rsync.h b/rsync.h
index 1b73031..2366f57 100644
--- a/rsync.h
+++ b/rsync.h
@@ -66,6 +66,7 @@
 /* These flags are used in the live flist data. */
 
 #define FLAG_TOP_DIR (1<<0)	/* sender/receiver/generator */
+#define FLAG_OWNED_BY_US (1<<0) /* generator: set by make_file() for aux flists only */
 #define FLAG_FILE_SENT (1<<1)	/* sender/receiver/generator */
 #define FLAG_DIR_CREATED (1<<1)	/* generator */
 #define FLAG_CONTENT_DIR (1<<2)	/* sender/receiver/generator */
@@ -85,8 +86,12 @@
 
 /* These flags are passed to functions but not stored. */
 
-#define FLAG_DIVERT_DIRS (1<<16)/* sender */
+#define FLAG_DIVERT_DIRS (1<<16)   /* sender, but must be unique */
 
+/* These flags are for get_dirlist(). */
+#define GDL_IGNORE_FILTER_RULES (1<<0)
+
+/* Some helper macros for matching bits. */
 #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
 #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
 #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \


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