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Support port range as -p/--port PORT[:HIGHPORT].

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Extend mosh and mosh-server to support parsing a high port from
the desired_port argument.  The first (low) port must not be
greater than the second (high) port.
If only one value is provided, behaviour is as before; bind
to one port.  Also tweak the formatting in mosh-server(1) synopsis
to be consistent.

This resolves mosh issue # 296.

Signed-off-by: Luke Mewburn <luke@mewburn.net>
This commit is contained in:
Luke Mewburn
2012-10-27 18:38:05 +11:00
committed by Keith Winstein
parent b99da057bb
commit 141ec239da
6 changed files with 95 additions and 40 deletions
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src/frontend/mosh-server.cc
+4 -4
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@@ -103,7 +103,7 @@ using namespace std;
void print_usage( const char *argv0 )
{
fprintf( stderr, "Usage: %s new [-s] [-v] [-i LOCALADDR] [-p PORT] [-c COLORS] [-l NAME=VALUE] [-- COMMAND...]\n", argv0 );
fprintf( stderr, "Usage: %s new [-s] [-v] [-i LOCALADDR] [-p PORT[:PORT2]] [-c COLORS] [-l NAME=VALUE] [-- COMMAND...]\n", argv0 );
}
void print_motd( void );
@@ -235,9 +235,9 @@ int main( int argc, char *argv[] )
exit( 1 );
}
if ( desired_port
&& ( strspn( desired_port, "0123456789" ) != strlen( desired_port ) ) ) {
fprintf( stderr, "%s: Bad UDP port (%s)\n", argv[ 0 ], desired_port );
int dpl, dph;
if ( desired_port && ! Connection::parse_portrange( desired_port, dpl, dph ) ) {
fprintf( stderr, "%s: Bad UDP port range (%s)\n", argv[ 0 ], desired_port );
print_usage( argv[ 0 ] );
exit( 1 );
}