Replace select() by poll() to avoid problems with big

descriptor number.

Approved by:	glebius (mentor)

2 files changed, 7 insertions, 6 deletions

diff --git a/lib/libnetgraph/internal.h b/lib/libnetgraph/internal.h
index 0c947e5..748ca7b 100644
--- a/lib/libnetgraph/internal.h
+++ b/lib/libnetgraph/internal.h
@@ -44,7 +44,7 @@
 #include <sys/param.h>
 #include <sys/time.h>
 #include <sys/socket.h>
-#include <sys/select.h>
+#include <poll.h>
 #include <sys/linker.h>
 #include <stddef.h>
 
diff --git a/lib/libnetgraph/msg.c b/lib/libnetgraph/msg.c
index 48447d9..534d1d1 100644
--- a/lib/libnetgraph/msg.c
+++ b/lib/libnetgraph/msg.c
@@ -235,16 +235,17 @@ NgDeliverMsg(int cs, const char *path,
 
 	/* Wait for reply if there should be one. */
 	if (msg->header.cmd & NGM_HASREPLY) {
-		fd_set rfds;
+		struct pollfd rfds;
 		int n;
 
-		FD_ZERO(&rfds);
-		FD_SET(cs, &rfds);
-		n = select(cs + 1, &rfds, NULL, NULL, NULL);
+		rfds.fd = cs;
+		rfds.events = POLLIN;
+		rfds.revents = 0;
+		n = poll(&rfds, 1, INFTIM);
 		if (n == -1) {
 			errnosv = errno;
 			if (_gNgDebugLevel >= 1)
-				NGLOG("select");
+				NGLOG("poll");
 			rtn = -1;
 		}
 	}