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-rw-r--r--doc/doc-txt/ChangeLog5
-rw-r--r--src/src/transports/smtp.c12
2 files changed, 11 insertions, 6 deletions
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 4f7f63818..9404b7a57 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -173,6 +173,11 @@ JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
matters on fast-turnover and PID-randomising systems, which were getting
out-of-order delivery.
+JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
+ a possibly-overlapping copy. The symptom was that "Remote host closed
+ connection in response to HELO" was logged instead of the actual 4xx
+ error for the HELO.
+
Exim version 4.89
-----------------
diff --git a/src/src/transports/smtp.c b/src/src/transports/smtp.c
index 016f9783f..ca06bf6bd 100644
--- a/src/src/transports/smtp.c
+++ b/src/src/transports/smtp.c
@@ -1820,7 +1820,7 @@ goto SEND_QUIT;
errno = ERRNO_SMTPCLOSED;
goto EHLOHELO_FAILED;
}
- Ustrncpy(sx->buffer, rsp, sizeof(sx->buffer)/2);
+ memmove(sx->buffer, rsp, Ustrlen(rsp));
goto RESPONSE_FAILED;
}
}
@@ -2176,11 +2176,6 @@ return OK;
sx->send_quit = FALSE;
goto FAILED;
- /* This label is jumped to directly when a TLS negotiation has failed,
- or was not done for a host for which it is required. Values will be set
- in message and errno, and setting_up will always be true. Treat as
- a temporary error. */
-
EHLOHELO_FAILED:
code = '4';
message = string_sprintf("Remote host closed connection in response to %s"
@@ -2188,6 +2183,11 @@ return OK;
sx->send_quit = FALSE;
goto FAILED;
+ /* This label is jumped to directly when a TLS negotiation has failed,
+ or was not done for a host for which it is required. Values will be set
+ in message and errno, and setting_up will always be true. Treat as
+ a temporary error. */
+
#ifdef SUPPORT_TLS
TLS_FAILED:
code = '4';