[xcpu] patch: libspclient/open.c - prevents crash

[Hugh Greenberg]

This patch prevents a segfault caused by spc_open and spc_clunk if the
filesystem was previously disconnected by spc_disconnect_fsys .

Signed-off-by: Hugh Greenberg <[EMAIL PROTECTED]>


Index: open.c
===================================================================
--- open.c	(revision 695)
+++ open.c	(working copy)
@@ -99,6 +99,9 @@
 	Spfcall *tc, *rc;
 	Spcfid *fid;
 
+	if (fs->fd < 0) 
+		return NULL;
+		
 	fid = spc_walk(fs, path);
 	if (!fid)
 		return NULL;
@@ -128,6 +131,9 @@
 	Spcfsys *fs;
 
 	fs = fid->fsys;
+	if (fs->fd < 0)
+		return -1;
+
 	tc = sp_create_tclunk(fid->fid);
 	if (spc_rpc(fid->fsys, tc, &rc) < 0) {
 		free(tc);