Two bits of XDR both contained a definition called 'str' which
means that 'xdr_str' was being exported globally twice. Because
of the linker script this didn't affect us. But it's best to
rename this global so that conflicts cannot arise.
The use case is to have a long-running guestfish process in
a shell script, and thus to avoid the overhead of starting
guestfish each time. Do:
eval `guestfish --listen`
guestfish --remote somecmd
guestfish --remote someothercmd
guestfish --remote exit
This patch also supports having multiple guestfish processes
at the same time.
The protocol is simple XDR messages over a Unix domain socket.