From: Alan T. DeKok <aland@freeradius.org>
Date: Thu, 3 Oct 2024 13:27:54 +0000 (-0400)
Subject: use shutdown() on connected sockets
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=189bae0d290e23775740f68cefea400b8e231cbe;p=thirdparty%2Ffreeradius-server.git

use shutdown() on connected sockets
---

diff --git a/src/lib/bio/fd.c b/src/lib/bio/fd.c
index c83ec2f1030..165a42c58e3 100644
--- a/src/lib/bio/fd.c
+++ b/src/lib/bio/fd.c
@@ -1193,6 +1193,15 @@ int fr_bio_fd_write_only(fr_bio_t *bio)
 		break;
 
 	case FR_BIO_FD_CONNECTED:
+		/*
+		 *	Further reads are disallowed.
+		 */
+		if (shutdown(my->info.socket.fd, SHUT_RD) < 0) {
+			fr_strerror_printf("Failed shutting down connected socket - %s", fr_syserror(errno));
+			return -1;
+		}
+		break;
+
 	case FR_BIO_FD_ACCEPT:
 		fr_strerror_const("Only unconnected sockets can be marked 'write-only'");
 		return -1;