1 files changed, 102 insertions, 0 deletions
diff --git a/login/utmpd/xtmp.c b/login/utmpd/xtmp.c
new file mode 100644
index 0000000000..d2d5feee3b
--- /dev/null
+++ b/login/utmpd/xtmp.c
@@ -0,0 +1,102 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
+
+   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 <string.h>
+#include <unistd.h>
+#include <utmp.h>
+
+#include "xtmp.h"
+
+/* Convert the entry XT to the new utmp format and store it in UT.
+   Fields in UT that were not present in the old utmp format are
+   initialized to zero.  */
+void
+xtmp_to_utmp (const struct xtmp *xtmp, struct utmp *utmp)
+{
+  memset (utmp, 0, sizeof (struct utmp));
+#if _HAVE_XT_TYPE - 0
+  utmp->ut_type = xtmp->xt_type;
+#endif
+#if _HAVE_XT_PID - 0
+  utmp->ut_pid = xtmp->xt_pid;
+#endif
+  strncpy (utmp->ut_line, xtmp->xt_line, XT_LINESIZE);
+#if _HAVE_XT_ID - 0
+  strncpy (utmp->ut_id, xtmp->xt_id, sizeof xtmp->xt_id);
+#endif
+  utmp->ut_time = xtmp->xt_time;
+  strncpy (utmp->ut_user, xtmp->xt_user, XT_NAMESIZE);
+#if _HAVE_XT_HOST - 0
+  strncpy (utmp->ut_host, xtmp->xt_host, XT_HOSTSIZE);
+#endif
+  utmp->ut_addr = xtmp->xt_addr;
+}
+
+/* Convert the entry UTMP to the old utmp format and store it in XTMP.  */
+void
+utmp_to_xtmp (const struct utmp *utmp, struct xtmp *xtmp)
+{
+  memset (xtmp, 0, sizeof (struct xtmp));
+#if _HAVE_XT_TYPE - 0
+  xtmp->xt_type = utmp->ut_type;
+#endif
+#if _HAVE_XT_PID - 0
+  xtmp->xt_pid = utmp->ut_pid;
+#endif
+  strncpy (xtmp->xt_line, utmp->ut_line, XT_LINESIZE);
+  xtmp->xt_line[XT_LINESIZE] = '\0';
+#if _HAVE_XT_ID - 0
+  strncpy (xtmp->xt_id, utmp->ut_id, sizeof xtmp->xt_id);
+#endif
+  xtmp->xt_time = utmp->ut_time;
+  strncpy (xtmp->xt_user, utmp->ut_user, XT_NAMESIZE);
+#if _HAVE_XT_HOST - 0
+  strncpy (xtmp->xt_host, utmp->ut_host, XT_HOSTSIZE);
+  xtmp->xt_host[XT_HOSTSIZE] = '\0';
+#endif
+  xtmp->xt_addr = utmp->ut_addr;
+}
+
+/* Compare an old style entry XTMP with a new style entry UTMP.  The
+   function returns 1 if the information that is in both old and new
+   style entries is identical.  Otherwise this function returns 0.  */
+int
+compare_entry (const struct utmp *xtmp, const struct utmp *utmp)
+{
+  return
+    (
+#if _HAVE_XT_TYPE - 0
+     xtmp->ut_type == utmp->ut_type
+#endif
+#if _HAVE_XT_PID - 0
+     && xtmp->ut_pid == utmp->ut_pid
+#endif
+     && !strncmp (xtmp->ut_line, utmp->ut_line, XT_LINESIZE - 1)
+#if _HAVE_XT_ID - 0
+     && !strncmp (xtmp->ut_id, utmp->ut_id, sizeof utmp->ut_id)
+#endif
+     && xtmp->ut_time == utmp->ut_time
+     && !strncmp (xtmp->ut_user, utmp->ut_user, XT_NAMESIZE)
+#if _HAVE_XT_HOST - 0
+     && !strncmp (xtmp->ut_host, utmp->ut_host, XT_HOSTSIZE - 1)
+#endif
+     && xtmp->ut_addr == utmp->ut_addr);
+}