[newlib-cygwin] Cygwin: load_user_profile: use local pointer when appropriate

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=bffd21ad8047601e56d229e619bbcdb76096d975

commit bffd21ad8047601e56d229e619bbcdb76096d975
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Fri Mar 1 21:05:23 2019 +0100

    Cygwin: load_user_profile: use local pointer when appropriate
    
    dnsdomain does not have to be a copy of the domain, a pointer into
    cygheap is sufficient.
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/sec_auth.cc | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/winsup/cygwin/sec_auth.cc b/winsup/cygwin/sec_auth.cc
index 077b37c..ee740fa 100644
--- a/winsup/cygwin/sec_auth.cc
+++ b/winsup/cygwin/sec_auth.cc
@@ -278,11 +278,11 @@ load_user_profile (HANDLE token, struct passwd *pw, cygpsid &usersid)
   else
     {
       cyg_ldap cldap;
-      PWCHAR dnsdomain = NULL;
+      PCWSTR dnsdomain = NULL;
 
       debug_printf ("primary domain <%W>", cygheap->dom.primary_flat_name ());
       if (!wcscasecmp (domain, cygheap->dom.primary_flat_name ()))
-	dnsdomain = wcsdup (cygheap->dom.primary_dns_name ());
+	dnsdomain = cygheap->dom.primary_dns_name ();
       else
 	{
 	  PDS_DOMAIN_TRUSTSW td = NULL;
@@ -292,7 +292,7 @@ load_user_profile (HANDLE token, struct passwd *pw, cygpsid &usersid)
 	      debug_printf ("foreign domain <%W>", td->NetbiosDomainName);
 	      if (!wcscasecmp (domain, td->NetbiosDomainName))
 		{
-		  dnsdomain = wcsdup (td->DnsDomainName);
+		  dnsdomain = td->DnsDomainName;
 		  break;
 		}
 	    }
@@ -309,7 +309,6 @@ load_user_profile (HANDLE token, struct passwd *pw, cygpsid &usersid)
 		  pi.lpProfilePath = userpath;
 		}
 	    }
-	  free (dnsdomain);
 	}
       else
 	debug_printf ("Unknown domain <%W>?", domain);