xenconsole: do not exit if a pty device is missing

This can just mean we have raced with the bootloader exiting and if we
continue we will likely see the real domain console show up.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
xen-unstable changeset:   21797:c18f43ed379e
xen-unstable date:        Wed Jul 14 16:36:47 2010 +0100

diff --git a/tools/console/client/main.c b/tools/console/client/main.c
index 840f08eec6b6e2fef1f957e84e92cae304572a96..4289d361a69aa2f902b7dc020fd90fd329057d94 100644 (file)
--- a/tools/console/client/main.c
+++ b/tools/console/client/main.c
@@ -115,6 +115,8 @@ static int get_pty_fd(struct xs_handle *xs, char *path, int seconds)
                         * disambiguate: just read the pty path */
                        pty_path = xs_read(xs, XBT_NULL, path, &len);
                        if (pty_path != NULL) {
+                               if (access(pty_path, R_OK|W_OK) != 0)
+                                       continue;
                                pty_fd = open(pty_path, O_RDWR | O_NOCTTY);
                                if (pty_fd == -1) 
                                        err(errno, "Could not open tty `%s'",