From 2638cef71962fc49d57dc5d8977c4984a631a7ea Mon Sep 17 00:00:00 2001
From: Maxim Dounin <mdounin@mdounin.ru>
Date: Mon, 30 Sep 2013 22:10:13 +0400
Subject: [PATCH] Mail: fixed segfault with ssl/starttls at mail{} level and no
 cert.

A configuration like "mail { starttls on; server {}}" triggered NULL
pointer dereference in ngx_mail_ssl_merge_conf() as conf->file was not set.
---
 src/mail/ngx_mail_ssl_module.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mail/ngx_mail_ssl_module.c b/src/mail/ngx_mail_ssl_module.c
index dd6f2ac41..60e7a9a88 100644
--- a/src/mail/ngx_mail_ssl_module.c
+++ b/src/mail/ngx_mail_ssl_module.c
@@ -235,6 +235,11 @@ ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
        mode = "";
     }
 
+    if (conf->file == NULL) {
+        conf->file = prev->file;
+        conf->line = prev->line;
+    }
+
     if (*mode) {
 
         if (conf->certificate.len == 0) {