aboutsummaryrefslogtreecommitdiff
path: root/bits/utmp.h
diff options
context:
space:
mode:
Diffstat (limited to 'bits/utmp.h')
-rw-r--r--bits/utmp.h103
1 files changed, 90 insertions, 13 deletions
diff --git a/bits/utmp.h b/bits/utmp.h
index 4c36ca19ce..3c02dd4f3f 100644
--- a/bits/utmp.h
+++ b/bits/utmp.h
@@ -1,4 +1,4 @@
-/* The `struct utmp' type, describing entries in the utmp file. Generic/BSDish
+/* The `struct utmp' type, describing entries in the utmp file.
Copyright (C) 1993-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -21,29 +21,106 @@
#endif
#include <paths.h>
-#include <time.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <bits/wordsize.h>
-#define UT_NAMESIZE 8
-#define UT_LINESIZE 8
-#define UT_HOSTSIZE 16
+#define UT_LINESIZE 32
+#define UT_NAMESIZE 32
+#define UT_HOSTSIZE 256
+/* The structure describing an entry in the database of
+ previous logins. */
struct lastlog
{
- time_t ll_time;
+#if __WORDSIZE_TIME64_COMPAT32
+ int32_t ll_time;
+#else
+ __time_t ll_time;
+#endif
char ll_line[UT_LINESIZE];
char ll_host[UT_HOSTSIZE];
};
-struct utmp
+
+/* The structure describing the status of a terminated process. This
+ type is used in `struct utmp' below. */
+struct exit_status
{
- char ut_line[UT_LINESIZE];
- char ut_user[UT_NAMESIZE];
-#define ut_name ut_user
- char ut_host[UT_HOSTSIZE];
- long int ut_time;
+ short int e_termination; /* Process termination status. */
+ short int e_exit; /* Process exit status. */
};
-#define _HAVE_UT_HOST 1 /* We have the ut_host field. */
+/* The structure describing an entry in the user accounting database. */
+struct utmp
+{
+ short int ut_type; /* Type of login. */
+ pid_t ut_pid; /* Process ID of login process. */
+ char ut_line[UT_LINESIZE]
+ __attribute_nonstring__; /* Devicename. */
+ char ut_id[4]; /* Inittab ID. */
+ char ut_user[UT_NAMESIZE]
+ __attribute_nonstring__; /* Username. */
+ char ut_host[UT_HOSTSIZE]
+ __attribute_nonstring__; /* Hostname for remote login. */
+ struct exit_status ut_exit; /* Exit status of a process marked
+ as DEAD_PROCESS. */
+/* The ut_session and ut_tv fields must be the same size when compiled
+ 32- and 64-bit. This allows data files and shared memory to be
+ shared between 32- and 64-bit applications. */
+#if __WORDSIZE_TIME64_COMPAT32
+ int32_t ut_session; /* Session ID, used for windowing. */
+ struct
+ {
+ int32_t tv_sec; /* Seconds. */
+ int32_t tv_usec; /* Microseconds. */
+ } ut_tv; /* Time entry was made. */
+#else
+ long int ut_session; /* Session ID, used for windowing. */
+ struct timeval ut_tv; /* Time entry was made. */
+#endif
+
+ int32_t ut_addr_v6[4]; /* Internet address of remote host. */
+ char __glibc_reserved[20]; /* Reserved for future use. */
+};
+
+/* Backwards compatibility hacks. */
+#define ut_name ut_user
+#ifndef _NO_UT_TIME
+/* We have a problem here: `ut_time' is also used otherwise. Define
+ _NO_UT_TIME if the compiler complains. */
+# define ut_time ut_tv.tv_sec
+#endif
+#define ut_xtime ut_tv.tv_sec
+#define ut_addr ut_addr_v6[0]
+
+
+/* Values for the `ut_type' field of a `struct utmp'. */
+#define EMPTY 0 /* No valid user accounting information. */
+
+#define RUN_LVL 1 /* The system's runlevel. */
+#define BOOT_TIME 2 /* Time of system boot. */
+#define NEW_TIME 3 /* Time after system clock changed. */
+#define OLD_TIME 4 /* Time when system clock changed. */
+
+#define INIT_PROCESS 5 /* Process spawned by the init process. */
+#define LOGIN_PROCESS 6 /* Session leader of a logged in user. */
+#define USER_PROCESS 7 /* Normal process. */
+#define DEAD_PROCESS 8 /* Terminated process. */
+
+#define ACCOUNTING 9
+
+/* Old Linux name for the EMPTY type. */
+#define UT_UNKNOWN EMPTY
+
+
+/* Tell the user that we have a modern system with UT_HOST, UT_PID,
+ UT_TYPE, UT_ID and UT_TV fields. */
+#define _HAVE_UT_TYPE 1
+#define _HAVE_UT_PID 1
+#define _HAVE_UT_ID 1
+#define _HAVE_UT_TV 1
+#define _HAVE_UT_HOST 1