[glibc/siddhesh/gai-cleanup2] gaih_inet: Put name copy under gaih_lookup cache

[Siddhesh Poyarekar <siddhesh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f66eb74240baa93a5a06eed517322d9a4a131ed4

commit f66eb74240baa93a5a06eed517322d9a4a131ed4
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date:   Mon Feb 28 23:34:50 2022 +0530

    gaih_inet: Put name copy under gaih_lookup cache
    
    Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

Diff:
---
 sysdeps/posix/getaddrinfo.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 036a9539b0..f790921487 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1218,7 +1218,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
   if ((rc = get_servtuples (service, req, st, tmpbuf)) != 0)
     return rc;
 
-  bool malloc_name = false;
   int result = 0;
   struct gaih_lookup_result res = {0};
   struct scratch_buffer resbuf;
@@ -1226,6 +1225,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
 
   if (name != NULL)
     {
+      gaih_lookup_result_init (&res, &resbuf);
+
       if (req->ai_flags & AI_IDN)
 	{
 	  char *out;
@@ -1233,11 +1234,9 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	  if (result != 0)
 	    return -result;
 	  name = out;
-	  malloc_name = true;
+	  gaih_lookup_result_push_alloc (&res, out);
 	}
 
-      gaih_lookup_result_init (&res, &resbuf);
-
       if ((result = get_numeric_res (name, req, &res)) != 0)
 	goto free_and_return;
       else if (res.at != NULL)
@@ -1292,8 +1291,6 @@ process_list:
   result = generate_addrinfo (canon, req, &res, st, pai, naddrs);
 
  free_and_return:
-  if (malloc_name)
-    free ((char *) name);
   if (result != 0)
     free (canon);
   gaih_lookup_result_free (&res);