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+/* Helper function for utmp functions to see if two entries are equal.
+ Copyright (C) 1996-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>
+ and Paul Janzen <pcj@primenet.com>, 1996.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <string.h>
+#include <utmp.h>
+
+#include "utmp-private.h"
+
+/* Test whether two entries match. */
+static int
+__utmp_equal (const struct utmp *entry, const struct utmp *match)
+{
+ return
+ (
+#if _HAVE_UT_TYPE - 0
+ (entry->ut_type == INIT_PROCESS
+ || entry->ut_type == LOGIN_PROCESS
+ || entry->ut_type == USER_PROCESS
+ || entry->ut_type == DEAD_PROCESS)
+ &&
+ (match->ut_type == INIT_PROCESS
+ || match->ut_type == LOGIN_PROCESS
+ || match->ut_type == USER_PROCESS
+ || match->ut_type == DEAD_PROCESS)
+ &&
+#endif
+#if _HAVE_UT_ID - 0
+ (entry->ut_id[0] && match->ut_id[0]
+ ? strncmp (entry->ut_id, match->ut_id, sizeof match->ut_id) == 0
+ : strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0)
+#else
+ strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0
+#endif
+ );
+}