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Diffstat (limited to 'login/logwtmp.c')
-rw-r--r--login/logwtmp.c47
1 files changed, 3 insertions, 44 deletions
diff --git a/login/logwtmp.c b/login/logwtmp.c
index b6af813..58f07ff 100644
--- a/login/logwtmp.c
+++ b/login/logwtmp.c
@@ -17,53 +17,12 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include <errno.h>
#include <string.h>
+#include <sys/time.h>
+#include <time.h>
#include <unistd.h>
#include <utmp.h>
-#include <sys/file.h>
-#include <sys/stat.h>
-void
-updwtmp (const char *wtmp_file, const struct utmp *ut)
-{
- struct stat st;
- size_t written;
- int fd;
-
- /* Open WTMP file. */
- fd = __open (wtmp_file, O_WRONLY | O_APPEND);
- if (fd < 0)
- return;
-
- /* Try to lock the file. */
- if (__flock (fd, LOCK_EX | LOCK_NB) < 0 && errno != ENOSYS)
- {
- /* Oh, oh. The file is already locked. Wait a bit and try again. */
- sleep (1);
-
- /* This time we ignore the error. */
- __flock (fd, LOCK_EX | LOCK_NB);
- }
-
- /* Remember original size of log file: */
- if (__fstat (fd, &st) < 0)
- goto done;
-
- /* 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 (struct utmp));
- if (written > 0 && written != sizeof (struct utmp))
- ftruncate (fd, st.st_size);
-
-done:
- /* And unlock the file. */
- __flock (fd, LOCK_UN);
-
- /* Close WTMP file. */
- __close (fd);
-}
void
logwtmp (const char *line, const char *name, const char *host)
@@ -90,5 +49,5 @@ logwtmp (const char *line, const char *name, const char *host)
time (&ut.ut_time);
#endif
- updwtmp(_PATH_WTMP, &ut);
+ updwtmp (_PATH_WTMP, &ut);
}