[PATCH xscope] Fallback on other transports

[Jeremy Huddleston]

This adds support for --disable-unix-transport

Signed-off-by: Jeremy Huddleston <jeremyhu at apple.com>
---
 fd.c |   13 +++++++++----
 fd.h |    2 +-
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/fd.c b/fd.c
index 0945d41..fbf48ec 100644
--- a/fd.c
+++ b/fd.c
@@ -258,7 +258,7 @@ AcceptConnection (
 
 FD
 MakeConnection(
-    char *server,
+    const char *server,
     short port,
     int	report,
     XtransConnInfo *trans_conn  /* transport connection object */
@@ -268,9 +268,14 @@ MakeConnection(
 #ifdef USE_XTRANS
   char address[256];
   int connect_stat;
-
-  snprintf (address, sizeof(address), "%s:%ld", server, port - ServerBasePort);
-  if ( (*trans_conn = _X11TransOpenCOTSClient(address)) == NULL ) {
+  const char *protocols[] = {"local", "unix", "inet6", "inet", "tcp", NULL};
+  const char **s;
+   
+  for(*trans_conn = NULL, s = protocols; *trans_conn == NULL && *s; s++) {
+      snprintf (address, sizeof(address), "%s/%s:%ld", *s, server, port - ServerBasePort);
+      *trans_conn = _X11TransOpenCOTSClient(address);
+  }
+  if(*trans_conn == NULL) {
       debug(1,(stderr, "OpenCOTSClient failed\n"));
       panic("Can't open connection to Server");
   }
diff --git a/fd.h b/fd.h
index 70e437d..3815210 100644
--- a/fd.h
+++ b/fd.h
@@ -96,7 +96,7 @@ extern void UsingFD(FD fd, void (*Handler)(int), void (*FlushHandler)(int),
 extern void NotUsingFD(FD fd);
 
 extern FD AcceptConnection (FD  ConnectionSocket);
-extern FD MakeConnection (char *server, short port, int report,
+extern FD MakeConnection (const char *server, short port, int report,
 			  XtransConnInfo *trans_conn);
 
 extern int MainLoop(void);
-- 
1.7.1