commit 8ec83e5b6ebab7711854b45048771661a0f9ec98
from: Tobias Heider <me@tobhe.de>
via: Thomas Adam <thomas.adam22@gmail.com>
date: Thu Apr 25 14:57:36 2024 UTC

Unset errno and bio->wantev if error was not TLS_WANT_*. This is commonly
called in a loop, if we don't clear them we might keep on looping.

ok stsp@

commit - 29460ff0cab862cacf5ec17a35c653e83ffff229
commit + 8ec83e5b6ebab7711854b45048771661a0f9ec98
blob - 144bb6edab83dff032ca0613fd3117ae00c88da6
blob + 3d06e7083870f02f1904215e1a6aa63a6b50853e
--- lib/bufio.c
+++ lib/bufio.c
@@ -289,6 +289,8 @@ bufio_read(struct bufio *bio)
 			bio->wantev = BUFIO_WANT_WRITE;
 			return (-1);
 		case -1:
+			bio->wantev = 0;
+			errno = 0;
 			return (-1);
 		default:
 			bio->wantev = 0;