added fn

tools/libc_functions.txt

@@ -289,6 +289,7 @@ fopen
 __fopen_internal
 __fopen_maybe_mmap
 fork
+__fortify_fail
 fprintf
 ___fprintf_chk
 __fprintf_chk
@@ -980,6 +981,21 @@ _nl_remove_locale
 _nl_select_era_entry
 _nl_unload_domain
 _nl_unload_locale
+__nscd_cache_search
+__nscd_getai
+__nscd_getgrgid_r
+__nscd_getgrnam_r
+__nscd_getgrouplist
+__nscd_gethostbyaddr_r
+__nscd_gethostbyname2_r
+__nscd_gethostbyname_r
+__nscd_get_map_ref
+__nscd_getpwnam_r
+__nscd_getpwuid_r
+__nscd_getservbyname_r
+__nscd_getservbyport_r
+__nscd_open_socket
+__nscd_unmap
 __nss_aliases_lookup
 __nss_aliases_lookup2
 __nss_configure_lookup