Processor: Use vsnprintf in error handler

Author: dbaston

Diff for: src/processor.h

@@ -30,7 +30,7 @@ errorHandler(const char* fmt, ...)
     char buf[BUFSIZ], *p;
     va_list ap;
     va_start(ap, fmt);
-    vsprintf(buf, fmt, ap);
+    vsnprintf(buf, BUFSIZ, fmt, ap);
     va_end(ap);
     p = buf + strlen(buf) - 1;
     if (strlen(buf) > 0 && *p == '\n')