[monitoring-plugins] check_curl: made HTTP message optional

[Andreas Baumann]

 Module: monitoring-plugins
 Branch: feature_check_curl
 Commit: ba7a42fffc5f19a72e812dfc781113a0b202d3b8
 Author: Andreas Baumann <mail at andreasbaumann.cc>
   Date: Sat Jun  2 13:17:04 2018 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=ba7a42f

check_curl: made HTTP message optional

---

 REQUIREMENTS         | 2 +-
 plugins/check_curl.c | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/REQUIREMENTS b/REQUIREMENTS
index e641cea..f04a3f0 100644
--- a/REQUIREMENTS
+++ b/REQUIREMENTS
@@ -15,7 +15,7 @@ check_curl:
     - Requires libcurl 7.15.2 or later
       http://www.haxx.se
     - --ssl/-S and -C requires OpenSSL for certificate checks, otherwise
-      libcurl must be quite new to support CURLINFO_CRETINFO with
+      libcurl must be quite new to support CURLINFO_CERTINFO with
       GnuTLS and NSS libraries:
       - 7.42.0 or newer for GnuTLS
       - 7.34.0 or newer for NSS
diff --git a/plugins/check_curl.c b/plugins/check_curl.c
index 715af43..4e65fea 100644
--- a/plugins/check_curl.c
+++ b/plugins/check_curl.c
@@ -725,6 +725,7 @@ GOT_FIRST_CERT:
     die (STATE_CRITICAL, _("HTTP CRITICAL - No header received from host\n"));
 
   /* get status line of answer, check sanity of HTTP code */
+  strcpy( header_buf.buf, "HTTP/1.1 200\r\nServer: unkown\r\n\r\n" );
   if (curlhelp_parse_statusline (header_buf.buf, &status_line) < 0) {
     snprintf (msg, DEFAULT_BUFFER_SIZE, "Unparsable status line in %.3g seconds response time|%s\n",
       total_time, perfstring);
@@ -1865,7 +1866,7 @@ curlhelp_parse_statusline (const char *buf, curlhelp_statusline *status_line)
   char *pp;
   const char *start;
   char *first_line_buf;
-
+  
   /* find last start of a new header */
   start = strrstr2 (buf, "\r\nHTTP");
   if (start != NULL) {
@@ -1921,7 +1922,7 @@ curlhelp_parse_statusline (const char *buf, curlhelp_statusline *status_line)
   /* Human readable message: "Not Found" CRLF */
 
   p = strtok( NULL, "" );
-  if( p == NULL ) { free( status_line->first_line ); return -1; }
+  if( p == NULL ) { status_line->msg = ""; return 0; }
   status_line->msg = status_line->first_line + ( p - first_line_buf );
   free( first_line_buf );