Use timeout when waiting for responses from iscsid

The server might already been terminated when iscsiadm tries to
send a request to it, hence we might be waiting forever for a reply.
With this patchset we're waiting at most one minute before giving up,
avoiding a hang in iscsiadm.

Changes since v2:
 * rework readability in new poll() code

Changes since v1:
 * Break out of poll() loop on error
 * Initialize discovery timeout

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Lee Duncan <lduncan@suse.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/usr/config.h b/usr/config.h
index fd31a54..5b1bb1d 100644
--- a/usr/config.h
+++ b/usr/config.h
@@ -315,6 +315,7 @@ typedef struct discovery_rec {
 	discovery_type_e	type;
 	char			address[NI_MAXHOST];
 	int			port;
+	int			iscsid_req_tmo;
 	union {
 		struct iscsi_sendtargets_config	sendtargets;
 		struct iscsi_slp_config		slp;