Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/* compatability routines for older rsync protocol versions */
+/**
+ * @file compat.c
+ *
+ * Compatibility routines for older rsync protocol versions.
+ **/
#include "rsync.h"
extern int am_server;
-extern int csum_length;
-
extern int preserve_links;
extern int preserve_perms;
extern int preserve_devices;
extern int remote_version;
extern int verbose;
+extern int read_batch; /* dw */
+extern int write_batch; /* dw */
+
void setup_protocol(int f_out,int f_in)
{
- if (am_server) {
- remote_version = read_int(f_in);
- write_int(f_out,PROTOCOL_VERSION);
- write_flush(f_out);
- } else {
- write_int(f_out,PROTOCOL_VERSION);
- write_flush(f_out);
- remote_version = read_int(f_in);
- }
-
- if (remote_version < MIN_PROTOCOL_VERSION ||
- remote_version > MAX_PROTOCOL_VERSION) {
- rprintf(FERROR,"protocol version mismatch - is your shell clean?\n");
- exit_cleanup(1);
- }
-
- if (verbose > 2)
- rprintf(FINFO, "local_version=%d remote_version=%d\n",
- PROTOCOL_VERSION, remote_version);
+ if (remote_version == 0) {
+ if (am_server) {
+ remote_version = read_int(f_in);
+ write_int(f_out,PROTOCOL_VERSION);
+ } else {
+ write_int(f_out,PROTOCOL_VERSION);
+ remote_version = read_int(f_in);
+ }
+ }
- if (remote_version >= 12) {
- if (am_server) {
- checksum_seed = time(NULL);
- write_int(f_out,checksum_seed);
- } else {
- checksum_seed = read_int(f_in);
- }
- }
+ if (remote_version < MIN_PROTOCOL_VERSION ||
+ remote_version > MAX_PROTOCOL_VERSION) {
+ rprintf(FERROR,"protocol version mismatch - is your shell clean?\n");
+ rprintf(FERROR,"(see the rsync man page for an explanation)\n");
+ exit_cleanup(RERR_PROTOCOL);
+ }
+ if (remote_version < OLD_PROTOCOL_VERSION)
+ rprintf(FINFO,"%s is very old version of rsync, upgrade recommended.\n",
+ am_server ? "Server" : "Client");
- checksum_init();
+ if (am_server) {
+ if (read_batch || write_batch) /* dw */
+ checksum_seed = 32761;
+ else
+ checksum_seed = time(NULL);
+ write_int(f_out,checksum_seed);
+ } else {
+ checksum_seed = read_int(f_in);
+ }
}