Add new function updwtmp which allows to write a complete record to

the wtmp file.

diff --git a/login/logwtmp.c b/login/logwtmp.c
index 876388323fb6fd81d10ea315acbc23d8b7ba2148..b6af813e734d322ec27370d929e4be38d7100fd7 100644 (file)
--- a/login/logwtmp.c
+++ b/login/logwtmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -25,38 +25,17 @@
 #include <sys/stat.h>
 
 void
-logwtmp (const char *line, const char *name, const char *host)
+updwtmp (const char *wtmp_file, const struct utmp *ut)
 {
-  struct utmp ut;
   struct stat st;
   size_t written;
   int fd;
 
   /* Open WTMP file.  */
-  fd = __open (_PATH_WTMP, O_WRONLY | O_APPEND);
+  fd = __open (wtmp_file, O_WRONLY | O_APPEND);
   if (fd < 0)
       return;
 
-  /* Set information in new entry.  */
-  memset (&ut, 0, sizeof (ut));
-#if _HAVE_UT_PID - 0
-  ut.ut_pid = getpid ();
-#endif
-#if _HAVE_UT_TYPE - 0
-  ut.ut_type = name[0] ? USER_PROCESS : DEAD_PROCESS;
-#endif
-  strncpy (ut.ut_line, line, sizeof ut.ut_line);
-  strncpy (ut.ut_name, name, sizeof ut.ut_name);
-#if _HAVE_UT_HOST - 0
-  strncpy (ut.ut_host, host, sizeof ut.ut_host);
-#endif
-
-#if _HAVE_UT_TV - 0
-  __gettimeofday (&ut.ut_tv, NULL);
-#else
-  time (&ut.ut_time);
-#endif
-
   /* Try to lock the file.  */
   if (__flock (fd, LOCK_EX | LOCK_NB) < 0 && errno != ENOSYS)
     {
@@ -74,8 +53,8 @@ logwtmp (const char *line, const char *name, const char *host)
   /* Write the entry.  If we can't write all the bytes, reset the file
      size back to the original size.  That way, no partial entries
      will remain.  */
-  written = __write (fd, &ut, sizeof (ut));
-  if (written > 0 && written != sizeof (ut))
+  written = __write (fd, ut, sizeof (struct utmp));
+  if (written > 0 && written != sizeof (struct utmp))
     ftruncate (fd, st.st_size);
 
 done:
@@ -85,3 +64,31 @@ done:
   /* Close WTMP file.  */
   __close (fd);
 }
+
+void
+logwtmp (const char *line, const char *name, const char *host)
+{
+  struct utmp ut;
+
+  /* Set information in new entry.  */
+  memset (&ut, 0, sizeof (ut));
+#if _HAVE_UT_PID - 0
+  ut.ut_pid = getpid ();
+#endif
+#if _HAVE_UT_TYPE - 0
+  ut.ut_type = name[0] ? USER_PROCESS : DEAD_PROCESS;
+#endif
+  strncpy (ut.ut_line, line, sizeof ut.ut_line);
+  strncpy (ut.ut_name, name, sizeof ut.ut_name);
+#if _HAVE_UT_HOST - 0
+  strncpy (ut.ut_host, host, sizeof ut.ut_host);
+#endif
+
+#if _HAVE_UT_TV - 0
+  __gettimeofday (&ut.ut_tv, NULL);
+#else
+  time (&ut.ut_time);
+#endif
+
+  updwtmp(_PATH_WTMP, &ut);
+}