From: Alan T. DeKok <aland@freeradius.org>
Date: Tue, 2 Apr 2024 16:37:06 +0000 (-0400)
Subject: WOULD_BLOCK is not a fatal error when opening connected sockets
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e042f4c3a5d012f747fd3d62963d38243a637981;p=thirdparty%2Ffreeradius-server.git

WOULD_BLOCK is not a fatal error when opening connected sockets
---

diff --git a/src/lib/bio/fd.c b/src/lib/bio/fd.c
index 8cc0bccb3a8..26c9ae910d9 100644
--- a/src/lib/bio/fd.c
+++ b/src/lib/bio/fd.c
@@ -776,6 +776,8 @@ static int fr_bio_fd_init_file(fr_bio_fd_t *my)
 
 int fr_bio_fd_init_connected(fr_bio_fd_t *my)
 {
+	int rcode;
+
 	if (my->info.socket.af == AF_FILE_BIO) return fr_bio_fd_init_file(my);
 
 	/*
@@ -824,7 +826,15 @@ int fr_bio_fd_init_connected(fr_bio_fd_t *my)
 	 */
 	if (!my->info.cfg->async) return 0;
 
-	return fr_bio_fd_try_connect(my);
+	rcode = fr_bio_fd_try_connect(my);
+	if (rcode == 0) return 0;
+
+	if (rcode != fr_bio_error(IO_WOULD_BLOCK)) return rcode;
+
+	fr_assert(my->info.write_blocked);
+	fr_assert(my->info.state == FR_BIO_FD_STATE_CONNECTING);
+
+	return 0;
 }
 
 int fr_bio_fd_init_common(fr_bio_fd_t *my)