3 files changed, 55 insertions, 9 deletions

diff --git a/nss/nss_files/files-XXX.c b/nss/nss_files/files-XXX.c
index 3281580b8f..e80c06d269 100644
--- a/nss/nss_files/files-XXX.c
+++ b/nss/nss_files/files-XXX.c
@@ -21,6 +21,7 @@
 #include <ctype.h>
 #include <assert.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <bits/libc-lock.h>
 #include "nsswitch.h"
 
@@ -72,6 +73,26 @@ internal_setent (int stayopen)
 
       if (stream == NULL)
 	status = NSS_STATUS_UNAVAIL;
+      else
+	{
+	  /* We have to make sure the file is  `closed on exec'.  */
+	  int result, flags;
+
+	  result = flags = fcntl (fileno (stream), F_GETFD, 0);
+	  if (result >= 0)
+	    {
+	      flags |= FD_CLOEXEC;
+	      result = fcntl (fileno (stream), F_SETFD, flags);
+	    }
+	  if (result < 0)
+	    {
+	      /* Something went wrong.  Close the stream and return a
+		 failure.  */
+	      fclose (stream);
+	      stream = NULL;
+	      status = NSS_STATUS_UNAVAIL;
+	    }
+	}
     }
   else
     rewind (stream);
diff --git a/nss/nss_files/files-alias.c b/nss/nss_files/files-alias.c
index 99217fa7c5..0a910aa0fe 100644
--- a/nss/nss_files/files-alias.c
+++ b/nss/nss_files/files-alias.c
@@ -1,5 +1,5 @@
 /* Mail alias file parser in nss_files module.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -21,6 +21,7 @@
 #include <aliases.h>
 #include <ctype.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <bits/libc-lock.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -49,6 +50,26 @@ internal_setent (void)
 
       if (stream == NULL)
 	status = NSS_STATUS_UNAVAIL;
+      else
+	{
+	  /* We have to make sure the file is  `closed on exec'.  */
+	  int result, flags;
+
+	  result = flags = fcntl (fileno (stream), F_GETFD, 0);
+	  if (result >= 0)
+	    {
+	      flags |= FD_CLOEXEC;
+	      result = fcntl (fileno (stream), F_SETFD, flags);
+	    }
+	  if (result < 0)
+	    {
+	      /* Something went wrong.  Close the stream and return a
+		 failure.  */
+	      fclose (stream);
+	      stream = NULL;
+	      status = NSS_STATUS_UNAVAIL;
+	    }
+	}
     }
   else
     rewind (stream);
diff --git a/nss/nss_files/files-hosts.c b/nss/nss_files/files-hosts.c
index 239dea7ebd..d6c4152507 100644
--- a/nss/nss_files/files-hosts.c
+++ b/nss/nss_files/files-hosts.c
@@ -50,12 +50,7 @@ LINE_PARSER
    STRING_FIELD (addr, isspace, 1);
 
    /* Parse address.  */
-   if (inet_pton (AF_INET6, p, entdata->host_addr) > 0)
-     {
-       result->h_addrtype = AF_INET6;
-       result->h_length = IN6ADDRSZ;
-     }
-   else if (inet_pton (AF_INET, addr, entdata->host_addr) > 0)
+   if (inet_pton (AF_INET, addr, entdata->host_addr) > 0)
      {
        if (_res.options & RES_USE_INET6)
 	 {
@@ -70,6 +65,11 @@ LINE_PARSER
 	   result->h_length = INADDRSZ;
 	 }
      }
+   else if (inet_pton (AF_INET6, addr, entdata->host_addr) > 0)
+     {
+       result->h_addrtype = AF_INET6;
+       result->h_length = IN6ADDRSZ;
+     }
    else
      /* Illegal address: ignore line.  */
      return 0;
@@ -85,8 +85,12 @@ LINE_PARSER
 #include "files-XXX.c"
 
 DB_LOOKUP (hostbyname, ,,
-	   LOOKUP_NAME (h_name, h_aliases),
-	   const char *name)
+	   {
+	     if (result->h_addrtype != ((_res.options & RES_USE_INET6)
+					? AF_INET6 : AF_INET))
+	       continue;
+	     LOOKUP_NAME (h_name, h_aliases)
+	   }, const char *name)
 
 DB_LOOKUP (hostbyname2, ,,
 	   {