GnuTLS: more info on accept zero-error

1 files changed, 8 insertions, 5 deletions

diff --git a/src/src/tls-gnu.c b/src/src/tls-gnu.c
index fa489902a..eff9e8859 100644
--- a/src/src/tls-gnu.c
+++ b/src/src/tls-gnu.c
@@ -424,11 +424,14 @@ record_io_error(exim_gnutls_state_st *state, int rc, uschar *when, uschar *text)
 const uschar * msg;
 uschar * errstr;
 
-if (rc == GNUTLS_E_FATAL_ALERT_RECEIVED)
-  msg = string_sprintf("A TLS fatal alert has been received: %s",
-    US gnutls_alert_get_name(gnutls_alert_get(state->session)));
-else
-  msg = US gnutls_strerror(rc);
+msg = rc == GNUTLS_E_FATAL_ALERT_RECEIVED
+  ? string_sprintf("A TLS fatal alert has been received: %s",
+      US gnutls_alert_get_name(gnutls_alert_get(state->session)))
+  : rc == GNUTLS_E_PREMATURE_TERMINATION && errno
+  ? errno == ECONNRESET		/* Outlook does this to us right after sending us QUIT */
+  ? string_sprintf("syscall: %s", strerror(errno))
+  : string_sprintf("%s: syscall: %s", US gnutls_strerror(rc), strerror(errno))
+  : US gnutls_strerror(rc);
 
 (void) tls_error(when, msg, state->host, &errstr);