dbf5b2eb55
Now <utmpx.h> isn't any more useful on Android than <utmp.h> is, but it is POSIX, and -- importantly -- we can implement it with just a header file, so code can use it on every existing API level. macOS does indeed only have the <utmpx.h> functions (although it does still have the <utmp.h> header!), so potentially portable code might want <utmpx.h> on Android. (glibc/musl both have both headers.) Bug: https://github.com/landley/toybox/pull/213 Test: treehugger Change-Id: Iaa88167708182009a63e2e1a15f11186b251ed02
136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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/**
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* @file utmp.h
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* @brief No-op implementation of non-POSIX login records. See <utmpx.h> for the POSIX equivalents.
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <time.h>
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#define _PATH_UTMP "/var/run/utmp"
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#define _PATH_WTMP "/var/log/wtmp"
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#define _PATH_LASTLOG "/var/log/lastlog"
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#ifdef __LP64__
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#define UT_NAMESIZE 32
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#define UT_LINESIZE 32
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#define UT_HOSTSIZE 256
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#else
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#define UT_NAMESIZE 8
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#define UT_LINESIZE 8
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#define UT_HOSTSIZE 16
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#endif
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#define EMPTY 0
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#define RUN_LVL 1
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#define BOOT_TIME 2
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#define NEW_TIME 3
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#define OLD_TIME 4
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#define INIT_PROCESS 5
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#define LOGIN_PROCESS 6
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#define USER_PROCESS 7
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#define DEAD_PROCESS 8
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#define ACCOUNTING 9
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struct lastlog {
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time_t ll_time;
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char ll_line[UT_LINESIZE];
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char ll_host[UT_HOSTSIZE];
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};
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struct exit_status {
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short e_termination;
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short e_exit;
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};
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struct utmp {
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short ut_type;
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pid_t ut_pid;
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char ut_line[UT_LINESIZE];
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char ut_id[4];
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char ut_user[UT_NAMESIZE];
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char ut_host[UT_HOSTSIZE];
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struct exit_status ut_exit;
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long ut_session;
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struct timeval ut_tv;
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int32_t ut_addr_v6[4];
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char unused[20];
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};
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#define ut_name ut_user
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#define ut_time ut_tv.tv_sec
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#define ut_addr ut_addr_v6[0]
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__BEGIN_DECLS
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/**
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* Returns -1 and sets errno to ENOTSUP.
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*/
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int utmpname(const char* _Nonnull __path);
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/**
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* Does nothing.
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*/
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void setutent(void);
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/**
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* Does nothing and returns null.
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*/
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struct utmp* _Nullable getutent(void);
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/**
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* Does nothing and returns null.
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*/
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struct utmp* _Nullable pututline(const struct utmp* _Nonnull __entry);
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/**
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* Does nothing.
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*/
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void endutent(void);
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/**
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* [login_tty(3)](https://www.man7.org/linux/man-pages/man3/login_tty.3.html)
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* prepares for login on the given file descriptor.
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*
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* See also forkpty() which combines openpty(), fork(), and login_tty().
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*
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* Returns 0 on success and returns -1 and sets `errno` on failure.
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*
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* Available since API level 23.
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*/
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int login_tty(int __fd) __INTRODUCED_IN(23);
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__END_DECLS
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