Fix uninitialized value in time struct after strptime

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2366 152afb58-edef-0310-8abb-c4023f1b3aa9

NEWS

@@ -23,6 +23,7 @@ NEWS
   * Revert CVE-2008-4359 (#1720) fix "encoding+simplifying urls for rewrite/redirect": too many regressions.
   * Use FD_CLOEXEC if possible (fixes #1821)
   * Optimized buffer usage in mod_proxy (fixes #1850)
+  * Fix uninitialized value in time struct after strptime
 
 - 1.4.20 - 2008-09-30
 

src/http-header-glue.c

@@ -280,6 +280,7 @@ int http_response_handle_cachable(server *srv, connection *con, buffer *mtime) {
 						strncpy(buf, con->request.http_if_modified_since, used_len);
 						buf[used_len] = '\0';
 
+						tm.tm_isdst = 0;
 						if (NULL == strptime(buf, "%a, %d %b %Y %H:%M:%S GMT", &tm)) {
 							con->http_status = 412;
 							con->mode = DIRECT;
@@ -329,6 +330,7 @@ int http_response_handle_cachable(server *srv, connection *con, buffer *mtime) {
 			strncpy(buf, con->request.http_if_modified_since, used_len);
 			buf[used_len] = '\0';
 
+			tm.tm_isdst = 0;
 			if (NULL == strptime(buf, "%a, %d %b %Y %H:%M:%S GMT", &tm)) {
 				/**
 				 * parsing failed, let's get out of here