check_smtp.c: modified SSL check for use with -erefs/pull/1379/head

  - currently STARTTLS check does not work with -e if there's text
    like '220 hostname ESMTP*'. This is caused by SMTP answer from
    host. Postfix answer: 220 2.0.0 Ready to start TLS, Exchange
    2010: 220 2.0.0 SMTP server ready. This fix checks against 220

    closes #1093

1 files changed, 1 insertions, 1 deletions

diff --git a/plugins/check_smtp.c b/plugins/check_smtp.c
index 2e9b68b..1996c6d 100644
--- a/plugins/check_smtp.c
+++ b/plugins/check_smtp.c
@@ -231,7 +231,7 @@ main (int argc, char **argv)
                   send(sd, SMTP_STARTTLS, strlen(SMTP_STARTTLS), 0);
 
                   recvlines(buffer, MAX_INPUT_BUFFER); /* wait for it */
-                  if (!strstr (buffer, server_expect)) {
+                  if (!strstr (buffer, SMTP_EXPECT)) {
                     printf (_("Server does not support STARTTLS\n"));
                     smtp_quit();
                     return STATE_UNKNOWN;