gen/utmpx-darwin.h

   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 */