Preparing more efficient header parsing

opentracker.c

@@ -122,6 +122,24 @@ static void help( char *name ) {
 }
 #undef HELPLINE
 
+static size_t header_complete( char * request, ssize_t byte_count ) {
+  int i = 0, state = 0;
+
+  for( i=1; i < byte_count; i+=2 )
+    if( request[i] <= 13 ) {
+      i--;
+      for( state = 0 ; i < byte_count; ++i ) {
+        char c = request[i];
+        if( c == '\r' || c == '\n' )
+          state = ( state >> 2 ) | ( ( c << 6 ) & 0xc0 );
+        else
+          break;
+        if( state >= 0xa0 || state == 0x99 ) return i + 1;
+      }
+  }
+  return 0;
+}
+
 static void handle_dead( const int64 sock ) {
   struct http_data* cookie=io_getcookie( sock );
   if( cookie ) {

trackerlogic.h

@@ -118,8 +118,10 @@ struct ot_workstruct {
 #endif
 
   /* HTTP specific, non static */
+  int     keep_alive;
   char   *request;
   ssize_t request_size;
+  ssize_t header_size;
   char   *reply;
   ssize_t reply_size;
 };