# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1380564613 -14400
# Node ID 3ff1e663fa0897c18dd26bf3e5090bdf31602153
# Parent  66db21c0ac5526ec239921aac9df3d92e33f1b5f
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.

diff --git a/src/mail/ngx_mail_ssl_module.c b/src/mail/ngx_mail_ssl_module.c
--- 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, 
        mode = "";
     }
 
+    if (conf->file == NULL) {
+        conf->file = prev->file;
+        conf->line = prev->line;
+    }
+
     if (*mode) {
 
         if (conf->certificate.len == 0) {