X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=conffile.fl;h=2cfa21b10f96202635e8d33431802d136a6ca791;hb=076bb54e68477f883033bee696c9c5f801ece2f2;hp=c169b572e8a54beae15d7d368f9d5dbc519de78f;hpb=b8dc47dd7590c3b160c1e6b1bdc991f5820e92ad;p=secnet.git

diff --git a/conffile.fl b/conffile.fl
index c169b57..2cfa21b 100644
--- a/conffile.fl
+++ b/conffile.fl
@@ -3,8 +3,11 @@
 
 %option nounput
 %option noinput
+%option never-interactive
 
 %{
+#include <assert.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -32,7 +35,7 @@ struct include_stack_item {
 struct include_stack_item include_stack[MAX_INCLUDE_DEPTH];
 int include_stack_ptr=0;
 
-uint32_t config_lineno=0;
+int config_lineno=0;
 cstring_t config_file="xxx";
 
 static struct p_node *leafnode(uint32_t type)
@@ -99,6 +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;
 }