X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/3ea6e0e7a1a3938acd6ce455b71d816a80b1eaca..4fd842f98df4970f6e49a0365dbed60774e56c09:/compat.c

diff --git a/compat.c b/compat.c
index 70c2ee27..b8fde106 100644
--- a/compat.c
+++ b/compat.c
@@ -3,12 +3,11 @@
  *
  * Copyright (C) Andrew Tridgell 1996
  * Copyright (C) Paul Mackerras 1996
- * Copyright (C) 2004, 2005, 2006 Wayne Davison
+ * Copyright (C) 2004-2007 Wayne Davison
  *
  * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * 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
@@ -16,8 +15,7 @@
  * 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.,
- * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+ * with this program; if not, visit the http://fsf.org website.
  */
 
 #include "rsync.h"
@@ -29,8 +27,11 @@ int inc_recurse = 0;
 extern int verbose;
 extern int am_server;
 extern int am_sender;
+extern int local_server;
 extern int inplace;
 extern int recurse;
+extern int use_qsort;
+extern int allow_inc_recurse;
 extern int fuzzy_basis;
 extern int read_batch;
 extern int max_delete;
@@ -41,10 +42,50 @@ extern int prune_empty_dirs;
 extern int protocol_version;
 extern int preserve_uid;
 extern int preserve_gid;
+extern int preserve_acls;
+extern int preserve_xattrs;
 extern int preserve_hard_links;
 extern int need_messages_from_generator;
 extern int delete_mode, delete_before, delete_during, delete_after;
+extern int delete_excluded;
+extern int make_backups;
+extern char *shell_cmd; /* contains VER.SUB string if client is a pre-release */
+extern char *backup_dir, *backup_suffix;
+extern char *partial_dir;
 extern char *dest_option;
+extern struct filter_list_struct filter_list;
+
+/* These index values are for the file-list's extra-attribute array. */
+int uid_ndx, gid_ndx, acls_ndx, xattrs_ndx;
+
+/* The server makes sure that if either side only supports a pre-release
+ * version of a protocol, that both sides must speak a compatible version
+ * of that protocol for it to be advertised as available. */
+static void check_sub_protocol(void)
+{
+	char *dot;
+	int their_protocol, their_sub;
+	int our_sub = protocol_version < PROTOCOL_VERSION ? 0 : SUBPROTOCOL_VERSION;
+
+	if (!shell_cmd || !(dot = strchr(shell_cmd, '.'))
+	 || !(their_protocol = atoi(shell_cmd))
+	 || !(their_sub = atoi(dot+1))) {
+		if (our_sub)
+			protocol_version--;
+		return;
+	}
+
+	if (their_protocol < protocol_version) {
+		if (their_sub)
+			protocol_version = their_protocol - 1;
+		return;
+	}
+
+	if (their_protocol > protocol_version)
+		their_sub = 0; /* 0 == final version */
+	if (their_sub != our_sub)
+		protocol_version--;
+}
 
 void setup_protocol(int f_out,int f_in)
 {
@@ -53,11 +94,17 @@ void setup_protocol(int f_out,int f_in)
 	else
 		file_extra_cnt++;
 	if (preserve_uid)
-		preserve_uid = ++file_extra_cnt;
+		uid_ndx = ++file_extra_cnt;
 	if (preserve_gid)
-		preserve_gid = ++file_extra_cnt;
+		gid_ndx = ++file_extra_cnt;
+	if (preserve_acls && !am_sender)
+		acls_ndx = ++file_extra_cnt;
+	if (preserve_xattrs)
+		xattrs_ndx = ++file_extra_cnt;
 
 	if (remote_protocol == 0) {
+		if (am_server && !local_server)
+			check_sub_protocol();
 		if (!read_batch)
 			write_int(f_out, protocol_version);
 		remote_protocol = read_int(f_in);
@@ -65,7 +112,7 @@ void setup_protocol(int f_out,int f_in)
 			protocol_version = remote_protocol;
 	}
 	if (read_batch && remote_protocol > protocol_version) {
-	        rprintf(FERROR, "The protocol version in the batch file is too new (%d > %d).\n",
+		rprintf(FERROR, "The protocol version in the batch file is too new (%d > %d).\n",
 			remote_protocol, protocol_version);
 		exit_cleanup(RERR_PROTOCOL);
 	}
@@ -103,6 +150,20 @@ void setup_protocol(int f_out,int f_in)
 			    protocol_version);
 			exit_cleanup(RERR_PROTOCOL);
 		}
+		if (preserve_acls && !local_server) {
+			rprintf(FERROR,
+			    "--acls requires protocol 30 or higher"
+			    " (negotiated %d).\n",
+			    protocol_version);
+			exit_cleanup(RERR_PROTOCOL);
+		}
+		if (preserve_xattrs && !local_server) {
+			rprintf(FERROR,
+			    "--xattrs requires protocol 30 or higher"
+			    " (negotiated %d).\n",
+			    protocol_version);
+			exit_cleanup(RERR_PROTOCOL);
+		}
 	}
 
 	if (delete_mode && !(delete_before+delete_during+delete_after)) {
@@ -145,12 +206,20 @@ void setup_protocol(int f_out,int f_in)
 			exit_cleanup(RERR_PROTOCOL);
 		}
 	} else if (protocol_version >= 30) {
-		if (recurse && !preserve_hard_links && !delete_before
-		 && !delete_after && !delay_updates && !prune_empty_dirs)
+		if (recurse && allow_inc_recurse && !preserve_hard_links
+		 && !delete_before && !delete_after && !delay_updates
+		 && !prune_empty_dirs && !use_qsort)
 			inc_recurse = 1;
 		need_messages_from_generator = 1;
 	}
 
+	if (partial_dir && *partial_dir != '/' && (!am_server || local_server)) {
+		int flags = MATCHFLG_NO_PREFIXES | MATCHFLG_DIRECTORY;
+		if (!am_sender || protocol_version >= 30)
+			flags |= MATCHFLG_PERISHABLE;
+		parse_rule(&filter_list, partial_dir, flags, 0);
+	}
+
 	if (am_server) {
 		if (!checksum_seed)
 			checksum_seed = time(NULL);