nss: Turn __nss_database_lookup into a compatibility symbol

The function uses the internal service_user type, so it is not
really usable from the outside of glibc.  Rename the function
to __nss_database_lookup2 for internal use, and change
__nss_database_lookup to always indicate failure to the caller.

__nss_next already was a compatibility symbol.  The new
implementation always fails and no longer calls __nss_next2.

unscd, the alternative nscd implementation, does not use
__nss_database_lookup, so it is not affected by this change.

1 files changed, 1 insertions, 1 deletions

diff --git a/nss/nss_compat/compat-grp.c b/nss/nss_compat/compat-grp.c
index 24e499cc99..8f01e44a72 100644
--- a/nss/nss_compat/compat-grp.c
+++ b/nss/nss_compat/compat-grp.c
@@ -78,7 +78,7 @@ static bool in_blacklist (const char *, int, ent_t *);
 static void
 init_nss_interface (void)
 {
-  if (__nss_database_lookup ("group_compat", NULL, "nis", &ni) >= 0)
+  if (__nss_database_lookup2 ("group_compat", NULL, "nis", &ni) >= 0)
     {
       nss_setgrent = __nss_lookup_function (ni, "setgrent");
       nss_getgrnam_r = __nss_lookup_function (ni, "getgrnam_r");