Include ctype.h, stdio.h and stdio_ext.h.
authordrepper <drepper>
Fri, 2 Apr 2004 09:15:15 +0000 (09:15 +0000)
committerdrepper <drepper>
Fri, 2 Apr 2004 09:15:15 +0000 (09:15 +0000)
(_nis_default_nss_flags, default_nss): New variables.
(_nis_check_default_nss): New function.

nis/nss-nis.c

index 7f91e64..eef73c4 100644 (file)
@@ -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;
+}