integer and buffer overflows: introduce a number of asserts

[secnet.git] / conffile.fl

diff --git a/conffile.fl b/conffile.fl
index 1747be26fb321407edeb44ed124c644c13d80ee7..b375f3b5851c17a45c673ee06396d430b462fae5 100644 (file)
--- a/conffile.fl
+++ b/conffile.fl
@@ -6,6 +6,8 @@
 %option never-interactive
 
 %{
+#include <assert.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -100,6 +102,7 @@ include                     BEGIN(incl);
        Message(M_FATAL,"config file %s line %d: %s\n",config_file,
                config_lineno,"``include'' requires a filename");
        BEGIN(INITIAL);
+       assert(config_lineno < INT_MAX);
        ++config_lineno;
        ++yynerrs;
 }