On Tue, 2008-09-23 at 12:58 +0200, Paul Slootman wrote:
> In debian bug #493559 (http://bugs.debian.org/493559) the problem is
> that when requesting a file from an older version rsync, the remote
> server gives an error:
> 
> $ rsync rsync://rsync.blackholes.us/zones/countries/countries.rbl /tmp
> rsync: on remote machine: -: unknown option
> rsync error: requested action not supported (code 4) at clientserver.c(517)
> rsync: connection unexpectedly closed (4 bytes received so far) [receiver]
> rsync error: error in rsync protocol data stream (code 12) at io.c(632) 
> [receiver=3.0.4]

This appears to be a result of adding the -e server option and
incompletely removing it for pre-protocol-30 servers.  This patch should
fix it:

--- a/options.c
+++ b/options.c
@@ -2267,7 +2267,8 @@ void server_options(char **args, int *argc_p)
 
        argstr[x] = '\0';
 
-       args[ac++] = argstr;
+       if (x != 1)
+               args[ac++] = argstr;
 
 #ifdef ICONV_OPTION
        if (iconv_opt) {

The patch is also in my repository.

Matt

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