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-rw-r--r--nis/nss-nis.c87
1 files changed, 86 insertions, 1 deletions
diff --git a/nis/nss-nis.c b/nis/nss-nis.c
index cff1e765bb..40370bae3b 100644
--- a/nis/nss-nis.c
+++ b/nis/nss-nis.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 2001, 2004, 2006 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 +16,13 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <ctype.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <string.h>
+#include <rpcsvc/ypclnt.h>
+
#include "nss-nis.h"
#include "nsswitch.h"
@@ -43,3 +50,81 @@ 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;
+}