From: Wayne Davison <wayned@samba.org>
Date: Tue, 31 Jan 2006 02:30:02 +0000 (+0000)
Subject: Added the dest_mode() function: it figures out the permissions for
X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/commitdiff_plain/812848323b75b1adc76e35753bb328032b3110e3

Added the dest_mode() function: it figures out the permissions for
a file when we aren't preserving permissions, including the honoring
of the new --executability option.
---

diff --git a/rsync.c b/rsync.c
index 68d5026e..219a1496 100644
--- a/rsync.c
+++ b/rsync.c
@@ -25,8 +25,10 @@
 extern int verbose;
 extern int dry_run;
 extern int daemon_log_format_has_i;
+extern int preserve_executability;
 extern int preserve_times;
 extern int omit_dir_times;
+extern int orig_umask;
 extern int am_root;
 extern int am_server;
 extern int am_sender;
@@ -49,6 +51,27 @@ void free_sums(struct sum_struct *s)
 	free(s);
 }
 
+/* This is only called when we aren't preserving permissions.  Figure out what
+ * the permissions should be and return them merged back into the mode. */
+mode_t dest_mode(mode_t flist_mode, mode_t dest_mode, int exists)
+{
+	/* If the file already exists we'll return the local permissions,
+	 * possibly tweaked by the --executability option. */
+	if (exists) {
+		if (preserve_executability && S_ISREG(flist_mode)) {
+			/* If the source file is executable, grant execute
+			 * rights to everyone who can read, but ONLY if the
+			 * file isn't already executable. */
+			if (!(flist_mode & 0111))
+				dest_mode &= ~0111;
+			else if (!(dest_mode & 0111))
+				dest_mode |= (dest_mode & 0444) >> 2;
+		}
+	} else
+		dest_mode = flist_mode & ~orig_umask;
+	return (flist_mode & ~CHMOD_BITS) | (dest_mode & CHMOD_BITS);
+}
+
 int set_file_attrs(char *fname, struct file_struct *file, STRUCT_STAT *st,
 		   int flags)
 {