Get canonical name in getaddrinfo from hosts file for AF_INET (fixes 16077)

AF_INET lookup in hosts file uses _nss_files_gethostbyname2_r, which
is not capable of returning a canonical name if it has found one.
This change adds _nss_files_gethostbyname3_r, which wraps around
_nss_files_gethostbyname2_r and then returns result.h_name as the
canonical name.

1 files changed, 1 insertions, 0 deletions

diff --git a/nss/Versions b/nss/Versions
index d13d570079..f8ababccc7 100644
--- a/nss/Versions
+++ b/nss/Versions
@@ -40,6 +40,7 @@ libnss_files {
     _nss_files_endhostent;
     _nss_files_gethostbyaddr_r;
     _nss_files_gethostbyname2_r;
+    _nss_files_gethostbyname3_r;
     _nss_files_gethostbyname4_r;
     _nss_files_gethostbyname_r;
     _nss_files_gethostent_r;