krb5 commit: Update k5_sendto() comment

[ghudson at mit.edu]

https://github.com/krb5/krb5/commit/784c38f50e70a739400cdd3f2620bac2e2788e6c
commit 784c38f50e70a739400cdd3f2620bac2e2788e6c
Author: Greg Hudson <ghudson at mit.edu>
Date:   Thu Aug 1 02:41:15 2024 -0400

    Update k5_sendto() comment
    
    Edit the block comment above k5_sendto() to take into account commits
    802318cda963456b3ed7856c836e89da891483be (which added request_timeout)
    and 6436a3808061da787a43c6810f5f0370cdfb6e36 (which made the open TCP
    connection wait indefinite).

 src/lib/krb5/os/sendto_kdc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/lib/krb5/os/sendto_kdc.c b/src/lib/krb5/os/sendto_kdc.c
index 0ffc04bd5..4b2906139 100644
--- a/src/lib/krb5/os/sendto_kdc.c
+++ b/src/lib/krb5/os/sendto_kdc.c
@@ -1470,7 +1470,7 @@ service_fds(krb5_context context, struct select_state *selstate,
 }
 
 /*
- * Current worst-case timeout behavior:
+ * Current timeout behavior when no request_timeout is set:
  *
  * First pass, 1s per udp or tcp server, plus 2s at end.
  * Second pass, 1s per udp server, plus 4s.
@@ -1489,9 +1489,9 @@ service_fds(krb5_context context, struct select_state *selstate,
  *
  * Note that if you try to reach two ports on one server, it counts as two.
  *
- * There is one exception to the above rules.  Whenever a TCP connection is
- * established, we wait up to ten seconds for it to finish or fail before
- * moving on.  This reduces network traffic significantly in a TCP environment.
+ * If a TCP connection is established, we wait on it indefinitely (or until
+ * request_timeout has elapsed) and do not attempt to contact additional
+ * servers.
  */
 
 krb5_error_code