X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=support%2Fnfs%2Fsvc_socket.c;h=888c915931b000f42d86d026bc94e86ed8329139;hp=a3cb7ce2e1751dddedaf7e28ba63d4a8cf4d36c7;hb=11d34d11153df198103a57291937ea9ff8b7356e;hpb=db96d056578338dd1bb0371dc84638973c187ec6

diff --git a/support/nfs/svc_socket.c b/support/nfs/svc_socket.c
index a3cb7ce..888c915 100644
--- a/support/nfs/svc_socket.c
+++ b/support/nfs/svc_socket.c
@@ -22,6 +22,7 @@
 #include <netdb.h>
 #include <rpc/rpc.h>
 #include <sys/socket.h>
+#include <sys/fcntl.h>
 #include <errno.h>
 
 #ifdef _LIBC
@@ -112,6 +113,26 @@ svc_socket (u_long number, int type, int protocol, int reuse)
 	}
     }
 
+  if (sock >= 0 && protocol == IPPROTO_TCP)
+    {
+	/* Make the TCP rendezvous socket non-block to avoid
+	 * problems with blocking in accept() after a spurious
+	 * wakeup from the kernel */
+	int flags;
+	if ((flags = fcntl(sock, F_GETFL)) < 0)
+	  {
+	      perror (_("svc_socket: can't get socket flags"));
+	      (void) __close (sock);
+	      sock = -1;
+	  }
+	else if (fcntl(sock, F_SETFL, flags|O_NONBLOCK) < 0)
+	  {
+	      perror (_("svc_socket: can't set socket flags"));
+	      (void) __close (sock);
+	      sock = -1;
+	  }
+    }
+
   return sock;
 }