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Commit	Line	Data
	1	/*
	2	* Copyright (c) 2005, 2009 Apple Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* "Portions Copyright (c) 2004 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.0 (the 'License'). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
	13	*
	14	* The Original Code and all software distributed under the License are
	15	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License."
	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	#include <pthread.h>
	25	#include <stdio.h>
	26	#include <stdlib.h>
	27	#include <string.h>
	28	#include <sys/param.h>
	29
	30	#ifdef UTMP_COMPAT
	31	#define UTMP_COMPAT_UTMP0 0x01
	32	#define UTMP_COMPAT_UTMP1 0x02
	33	#define UTMP_COMPAT_WTMP 0x04
	34	#define UTMP_COMPAT_LASTLOG 0x08
	35	#endif /* UTMP_COMPAT */
	36
	37	#define LASTLOG_FACILITY "com.apple.system.lastlog"
	38	#define UTMPX_FACILITY "com.apple.system.utmpx"
	39
	40	#define UTMPX_LOCK(x) pthread_mutex_lock(&(x)->utmpx_mutex)
	41	#define UTMPX_UNLOCK(x) pthread_mutex_unlock(&(x)->utmpx_mutex)
	42	#define UTMPX_MAGIC 8
	43	#define __UTX_MAGIC__ { 'u', 't', 'x', 0, 'v', 1, 0, 0 }
	44
	45	#define TEST_UTMPX_T(x,y) { \
	46	if (!(y)) \
	47	LIBC_ABORT("%s: NULL utmpx_t", (x)); \
	48	if (memcmp((y)->magic, __utx_magic__, UTMPX_MAGIC) != 0) \
	49	LIBC_ABORT("%s: magic mismatch", (x)); \
	50	}
	51
	52	struct _utmpx {
	53	char magic[UTMPX_MAGIC];
	54	struct utmpx ut;
	55	pthread_mutex_t utmpx_mutex;
	56	char *utfile;
	57	FILE *fp;
	58	unsigned int utfile_system :1; /* are we using _PATH_UTMPX? */
	59	unsigned int readonly :1;
	60	};
	61	extern const char __utx_magic__[]; /* size of UTMPX_MAGIC */
	62
	63	#ifdef __LP64__
	64	#include <sys/_types.h>
	65	#include <sys/_types/_timeval32.h>
	66
	67	/*
	68	* these structures assume natural alignment so they are the same size
	69	* and layout as their 32-bit counterpart
	70	*/
	71	#ifdef UTMP_COMPAT
	72	struct lastlog32 {
	73	__int32_t ll_time;
	74	char ll_line[UT_LINESIZE];
	75	char ll_host[UT_HOSTSIZE];
	76	};
	77
	78	struct utmp32 {
	79	char ut_line[UT_LINESIZE];
	80	char ut_name[UT_NAMESIZE];
	81	char ut_host[UT_HOSTSIZE];
	82	__int32_t ut_time;
	83	};
	84	#endif /* UTMP_COMPAT */
	85
	86	struct utmpx32 {
	87	char ut_user[_UTX_USERSIZE]; /* login name */
	88	char ut_id[_UTX_IDSIZE]; /* id */
	89	char ut_line[_UTX_LINESIZE]; /* tty name */
	90	pid_t ut_pid; /* process id creating the entry */
	91	short ut_type; /* type of this entry */
	92	struct timeval32 ut_tv; /* time entry was created */
	93	char ut_host[_UTX_HOSTSIZE]; /* host name */
	94	__uint32_t ut_pad[16]; /* reserved for future use */
	95	};
	96	#endif /* __LP64__ */
	97
	98	struct _utmpx *__default_utx(void);
	99
	100	void __endutxent(struct _utmpx *);
	101	struct utmpx __getutxent(struct _utmpx );
	102	void __setutxent(struct _utmpx *);
	103	struct utmpx __pututxline(struct _utmpx , const struct utmpx *);
	104	int __utmpxname(struct _utmpx , const char );
	105	#ifdef __LP64__
	106	void _utmpx32_64(const struct utmpx32 , struct utmpx );
	107	void _utmpx64_32(const struct utmpx , struct utmpx32 );
	108	#endif /* __LP64__ */
	109	void _utmpx_asl(const struct utmpx *);
	110	const struct utmpx _utmpx_working_copy(const struct utmpx , struct utmpx *, int);
	111
	112	#ifdef UTMP_COMPAT
	113	#ifdef __LP64__
	114	void _getutmp32(const struct utmpx , struct utmp32 );
	115	int _utmp_compat(const struct utmpx , struct utmp32 );
	116	void _write_lastlog(const struct utmp32 , const struct utmpx );
	117	void _write_utmp(const struct utmp32 *, int);
	118	#else /* __LP64__ */
	119	int _utmp_compat(const struct utmpx , struct utmp );
	120	void _write_lastlog(const struct utmp , const struct utmpx );
	121	void _write_utmp(const struct utmp *, int);
	122	#endif /* __LP64__ */
	123	void _write_utmp_compat(const struct utmpx *);
	124	#ifdef __LP64__
	125	void _write_wtmp(const struct utmp32 *);
	126	#else /* __LP64__ */
	127	void _write_wtmp(const struct utmp *);
	128	#endif /* __LP64__ */
	129	#endif /* UTMP_COMPAT */