include/utmpx.h

   1 /*-
   2  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   3  * All rights reserved.
   4  *
   5  * This code is derived from software contributed to The NetBSD Foundation
   6  * by Christos Zoulas.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27  * POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifndef _UTMPX_H_
  31 #define _UTMPX_H_
  32
  33 #include <sys/cdefs.h>
  34 #include <sys/socket.h>
  35 #include <sys/time.h>
  36
  37 #ifndef _PID_T_DECLARED
  38 typedef __pid_t         pid_t;          /* process id */
  39 #define _PID_T_DECLARED
  40 #endif
  41
  42 #define _PATH_UTMPX             "/var/run/utmpx"
  43 #define _PATH_WTMPX             "/var/log/wtmpx"
  44 #define _PATH_LASTLOGX          "/var/log/lastlogx"
  45 #define _PATH_UTMP_UPDATE       "/usr/libexec/utmp_update"
  46
  47 #define _UTX_USERSIZE   32
  48 #define _UTX_LINESIZE   32
  49 #define _UTX_IDSIZE     4
  50 #define _UTX_HOSTSIZE   256
  51
  52 #if __BSD_VISIBLE
  53 #define UTX_USERSIZE    _UTX_USERSIZE
  54 #define UTX_LINESIZE    _UTX_LINESIZE
  55 #define UTX_IDSIZE      _UTX_IDSIZE
  56 #define UTX_HOSTSIZE    _UTX_HOSTSIZE
  57 #endif
  58
  59
  60 #define EMPTY           0       /* No valid user accounting information. */
  61 #if __BSD_VISIBLE
  62 #define RUN_LVL         1
  63 #endif
  64 #define BOOT_TIME       2       /* Time of system boot. */
  65 #define OLD_TIME        3       /* Time when system clock changed. */
  66 #define NEW_TIME        4       /* Time after system clock changed. */
  67 #define INIT_PROCESS    5       /* A process spawned by the init process. */
  68 #define LOGIN_PROCESS   6       /* The session leader of a logged-in user. */
  69 #define USER_PROCESS    7       /* A process. */
  70 #define DEAD_PROCESS    8       /* A session leader who has exited. */
  71
  72 #if __BSD_VISIBLE
  73 #define ACCOUNTING      9
  74 #define SIGNATURE       10
  75 #define DOWN_TIME       11
  76
  77 /*
  78  * Strings placed in the ut_line field to indicate special type entries
  79  */
  80 #define RUNLVL_MSG      "run-level %c"
  81 #define BOOT_MSG        "system boot"
  82 #define OTIME_MSG       "old time"
  83 #define NTIME_MSG       "new time"
  84 #define DOWN_MSG        "system down"
  85
  86 typedef enum {
  87         UTX_DB_UTMPX,
  88         UTX_DB_WTMPX,
  89         UTX_DB_LASTLOGX
  90 } utx_db_t;
  91 #endif
  92
  93 struct exit_status
  94 {
  95         __uint16_t e_termination;       /* termination status */
  96         __uint16_t e_exit;              /* exit status */
  97 };
  98
  99 /*
 100  * The following structure describes the fields of the utmpx entries
 101  * stored in _PATH_UTMPX or _PATH_WTMPX. This is not necessarily the
 102  * format the entries are stored in the files, and application should
 103  * only access entries using routines described in getutxent(3).
 104  */
 105
 106 #define ut_user ut_name
 107 #define ut_xtime ut_tv.tv_sec
 108
 109 struct utmpx {
 110         char ut_name[_UTX_USERSIZE];    /* login name */
 111         char ut_id[_UTX_IDSIZE];        /* inittab id */
 112         char ut_line[_UTX_LINESIZE];    /* tty name */
 113         char ut_host[_UTX_HOSTSIZE];    /* host name */
 114         __uint8_t ut_unused[16];        /* reserved for future use */
 115         __uint16_t ut_session;          /* session id used for windowing */
 116         short ut_type;                  /* type of this entry */
 117         pid_t ut_pid;                   /* process id creating the entry */
 118         struct exit_status ut_exit;     /* process termination/exit status */
 119         struct sockaddr_storage ut_ss;  /* address where entry was made from */
 120         struct timeval ut_tv;           /* time entry was created */
 121         __uint8_t ut_unused2[16];       /* reserved for future use */
 122 };
 123
 124 #if __BSD_VISIBLE
 125 struct lastlogx {
 126         struct timeval ll_tv;           /* time entry was created */
 127         char ll_line[_UTX_LINESIZE];    /* tty name */
 128         char ll_host[_UTX_HOSTSIZE];    /* host name */
 129         struct sockaddr_storage ll_ss;  /* address where entry was made from */
 130 };
 131 #endif
 132
 133 __BEGIN_DECLS
 134 void          endutxent(void);
 135 struct utmpx *getutxent(void);
 136 struct utmpx *getutxid(const struct utmpx *);
 137 struct utmpx *getutxline(const struct utmpx *);
 138 struct utmpx *pututxline(const struct utmpx *);
 139 void          setutxent(void);
 140
 141 #if __BSD_VISIBLE
 142 int _updwtmpx(const char *, const struct utmpx *);
 143 void updwtmpx(const char *, const struct utmpx *);
 144 struct lastlogx *getlastlogx(const char *, uid_t, struct lastlogx *);
 145 int updlastlogx(const char *, uid_t, struct lastlogx *);
 146 int utmpxname(const char *);
 147 struct utmpx *getutxuser(const char *);
 148 int setutxdb(utx_db_t, const char *);
 149 #endif
 150 __END_DECLS
 151
 152 #endif /* _UTMPX_H_ */