D14389.id39357.diff
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	Index: stand/libsa/net.h
	===================================================================
	--- stand/libsa/net.h
	+++ stand/libsa/net.h
	@@ -61,6 +61,14 @@
	#define MAXTMO 120 /* seconds */
	#define MINTMO 2 /* seconds */

	+/*
	+ * Maximum wait time for sending and receiving before we give up and timeout.
	+ * If set to 0, operations will eventually timeout completely, but send/recv
	+ * timeouts must progress exponentially from MINTMO to MAXTMO before final
	+ * timeout is hit.
	+ */
	+#define MAXWAIT 0 /* seconds */
	+
	#define FNAME_SIZE 128
	#define IFNAME_SIZE 16
	#define RECV_SIZE 1536 /* XXX delete this */
	Index: stand/libsa/net.c
	===================================================================
	--- stand/libsa/net.c
	+++ stand/libsa/net.c
	@@ -76,7 +76,7 @@
	void pkt, void payload, void *recv_extra)
	{
	ssize_t cc;
	- time_t t, tmo, tlast;
	+ time_t t, tmo, tlast, tref;
	long tleft;

	#ifdef NET_DEBUG
	@@ -87,8 +87,13 @@
	tmo = MINTMO;
	tlast = 0;
	tleft = 0;
	+ tref = getsecs();
	t = getsecs();
	for (;;) {
	+ if (MAXWAIT > 0 && (getsecs() - tref) >= MAXWAIT) {
	+ errno = ETIMEDOUT;
	+ return -1;
	+ }
	if (tleft <= 0) {
	if (tmo >= MAXTMO) {
	errno = ETIMEDOUT;