X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/secnet/blobdiff_plain/f164f167ccbde79444f82ca5ad43cd59630578f6..a094a1bae5bcadfb96a57a3d31c1aa7c8815631d:/conffile.c

diff --git a/conffile.c b/conffile.c
index ede9c49..24d7e25 100644
--- a/conffile.c
+++ b/conffile.c
@@ -561,10 +561,10 @@ list_t *list_new(void)
     return NULL;
 }
 
-int32_t list_length(list_t *a)
+int32_t list_length(const list_t *a)
 {
     int32_t l=0;
-    list_t *i;
+    const list_t *i;
     for (i=a; i; i=i->next) { assert(l < INT_MAX); l++; }
     return l;
 }