Update.

2004-04-02  Jakub Jelinek  <jakub@redhat.com>

	* nis/nss: Add SERVICES_AUTHORITATIVE.
	* nis/nss-nis.h (NSS_FLAG_SET, NSS_FLAG_NETID_AUTHORITATIVE,
	NSS_FLAG_SERVICES_AUTHORITATIVE): Define.
	(_nis_default_nss_flags, _nis_check_default_nss): New decls.
	(_nis_default_nss): New inline.
	* nis/nss-nis.c: Include ctype.h, stdio.h and stdio_ext.h.
	(_nis_default_nss_flags, default_nss): New variables.
	(_nis_check_default_nss): New function.
	* nis/nss_nis/nis-initgroups.c: Don't include stdio.h and
	stdio_ext.h.
	(check_default_nss, default_nss): Move to nss-nis.c.
	(init): Removed.
	(_nss_nis_initgroups_dyn): Use _nis_default_nss ().
	* nis/nss_nis/nis-services.c (_nss_nis_getservbyname_r): If
	NSS_FLAG_SERVICES_AUTHORITATIVE and services.byservicename lookup
	fails, return immediately.

1 files changed, 82 insertions, 1 deletions

diff --git a/nis/nss-nis.c b/nis/nss-nis.c
index 7f91e6432a..eef73c41ca 100644
--- a/nis/nss-nis.c
+++ b/nis/nss-nis.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 2001, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,6 +16,9 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#include <ctype.h>
+#include <stdio.h>
+#include <stdio_ext.h>
 #include <rpcsvc/ypclnt.h>
 
 #include "nss-nis.h"
@@ -45,3 +48,81 @@ const enum nss_status __yperr2nss_tab[] =
 };
 const unsigned int __yperr2nss_count = (sizeof (__yperr2nss_tab)
 				        / sizeof (__yperr2nss_tab[0]));
+
+int _nis_default_nss_flags;
+
+static const char default_nss[] = "/etc/default/nss";
+
+int
+_nis_check_default_nss (void)
+{
+  FILE *fp = fopen (default_nss, "rc");
+  int flags = NSS_FLAG_SET;
+  if (fp != NULL)
+    {
+      char *line = NULL;
+      size_t linelen = 0;
+
+      __fsetlocking (fp, FSETLOCKING_BYCALLER);
+
+      while (!feof_unlocked (fp))
+	{
+	  ssize_t n = getline (&line, &linelen, fp);
+	  if (n <= 0)
+	    break;
+
+	  /* There currently are only two variables we expect, so
+	     simplify the parsing.  Recognize only
+
+	       NETID_AUTHORITATIVE = TRUE
+	       SERVICES_AUTHORITATIVE = TRUE
+
+	     with arbitrary white spaces.  */
+	  char *cp = line;
+	  while (isspace (*cp))
+	    ++cp;
+
+	  /* Recognize comment lines.  */
+	  if (*cp == '#')
+	    continue;
+
+	  static const char netid_authoritative[] = "NETID_AUTHORITATIVE";
+	  static const char services_authoritative[]
+	    = "SERVICES_AUTHORITATIVE";
+	  size_t flag_len;
+	  if (strncmp (cp, netid_authoritative,
+		       flag_len = sizeof (netid_authoritative) - 1) != 0
+	      && strncmp (cp, services_authoritative,
+			  flag_len = sizeof (services_authoritative) - 1)
+		 != 0)
+	    continue;
+
+	  cp += flag_len;
+	  while (isspace (*cp))
+	    ++cp;
+	  if (*cp++ != '=')
+	    continue;
+	  while (isspace (*cp))
+	    ++cp;
+
+	  if (strncmp (cp, "TRUE", 4) != 0)
+	    continue;
+	  cp += 4;
+
+	  while (isspace (*cp))
+	    ++cp;
+
+	  if (*cp == '\0')
+	    flags |= flag_len == sizeof (netid_authoritative) - 1
+		     ? NSS_FLAG_NETID_AUTHORITATIVE
+		     : NSS_FLAG_SERVICES_AUTHORITATIVE;
+	}
+
+      free (line);
+
+      fclose (fp);
+    }
+
+  _nis_default_nss_flags = flags;
+  return flags;
+}