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-rw-r--r--login/setutent_r.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/login/setutent_r.c b/login/setutent_r.c
new file mode 100644
index 0000000000..715101d659
--- /dev/null
+++ b/login/setutent_r.c
@@ -0,0 +1,72 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <utmp.h>
+
+/* This is the default name. */
+static const char default_utmp_name[] = _PATH_UTMP;
+
+/* Current file name. */
+static const char *utmp_file_name = (const char *) default_utmp_name;
+
+
+void
+setutent_r (struct utmp_data *utmp_data)
+{
+ /* Before the UTMP_DATA is used before the first time the UT_FD
+ field must be set to -1. */
+ if (utmp_data->ut_fd == -1)
+ {
+ utmp_data->ut_fd = open (utmp_file_name, O_RDWR);
+ if (utmp_data->ut_fd == -1)
+ {
+ /* Hhm, read-write access did not work. Try read-only. */
+ utmp_data->ut_fd = open (utmp_file_name, O_RDONLY);
+ if (utmp_data->ut_fd == -1)
+ {
+ perror (_("while opening UTMP file"));
+ return;
+ }
+ }
+ }
+
+ /* Remember we are at beginning of file. */
+ utmp_data->loc_utmp = 0;
+ utmp_data->ubuf.ut_type = -1;
+}
+
+
+int
+utmpname (const char *file)
+{
+ char *fname = strdup (file);
+ if (fname == NULL)
+ return 0;
+
+ if (utmp_file_name != default_utmp_name)
+ free ((void *) utmp_file_name);
+
+ utmp_file_name = fname;
+
+ return 1;
+}