/* See local README for interface description */
static void *
-passwd_open(uschar *filename, uschar **errmsg)
+passwd_open(const uschar * filename, uschar ** errmsg)
{
filename = filename; /* Keep picky compilers happy */
errmsg = errmsg;
/* See local README for interface description */
static int
-passwd_find(void *handle, uschar *filename, const uschar *keystring, int length,
- uschar **result, uschar **errmsg, uint *do_cache)
+passwd_find(void * handle, const uschar * filename, const uschar * keystring,
+ int length, uschar ** result, uschar ** errmsg, uint * do_cache)
{
struct passwd *pw;