utmpx.h 3.4 KB

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  1. /* Structures and definitions for the user accounting database. GNU version.
  2. Copyright (C) 1997, 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, see
  14. <http://www.gnu.org/licenses/>. */
  15. #ifndef _UTMPX_H
  16. # error "Never include <bits/utmpx.h> directly; use <utmpx.h> instead."
  17. #endif
  18. #include <bits/types.h>
  19. #include <sys/time.h>
  20. #include <bits/wordsize.h>
  21. #ifdef __USE_GNU
  22. # include <paths.h>
  23. # define _PATH_UTMPX _PATH_UTMP
  24. # define _PATH_WTMPX _PATH_WTMP
  25. #endif
  26. #define __UT_LINESIZE 32
  27. #define __UT_NAMESIZE 32
  28. #define __UT_HOSTSIZE 256
  29. /* The structure describing the status of a terminated process. This
  30. type is used in `struct utmpx' below. */
  31. struct __exit_status
  32. {
  33. #ifdef __USE_GNU
  34. short int e_termination; /* Process termination status. */
  35. short int e_exit; /* Process exit status. */
  36. #else
  37. short int __e_termination; /* Process termination status. */
  38. short int __e_exit; /* Process exit status. */
  39. #endif
  40. };
  41. /* The structure describing an entry in the user accounting database. */
  42. struct utmpx
  43. {
  44. short int ut_type; /* Type of login. */
  45. __pid_t ut_pid; /* Process ID of login process. */
  46. char ut_line[__UT_LINESIZE]; /* Devicename. */
  47. char ut_id[4]; /* Inittab ID. */
  48. char ut_user[__UT_NAMESIZE]; /* Username. */
  49. char ut_host[__UT_HOSTSIZE]; /* Hostname for remote login. */
  50. struct __exit_status ut_exit; /* Exit status of a process marked
  51. as DEAD_PROCESS. */
  52. /* The fields ut_session and ut_tv must be the same size when compiled
  53. 32- and 64-bit. This allows files and shared memory to be shared
  54. between 32- and 64-bit applications. */
  55. #if __WORDSIZE == 64 && defined __WORDSIZE_COMPAT32
  56. __int32_t ut_session; /* Session ID, used for windowing. */
  57. struct
  58. {
  59. __int32_t tv_sec; /* Seconds. */
  60. __int32_t tv_usec; /* Microseconds. */
  61. } ut_tv; /* Time entry was made. */
  62. #else
  63. long int ut_session; /* Session ID, used for windowing. */
  64. struct timeval ut_tv; /* Time entry was made. */
  65. #endif
  66. __int32_t ut_addr_v6[4]; /* Internet address of remote host. */
  67. char __unused[20]; /* Reserved for future use. */
  68. };
  69. /* Values for the `ut_type' field of a `struct utmpx'. */
  70. #define EMPTY 0 /* No valid user accounting information. */
  71. #ifdef __USE_GNU
  72. # define RUN_LVL 1 /* The system's runlevel. */
  73. #endif
  74. #define BOOT_TIME 2 /* Time of system boot. */
  75. #define NEW_TIME 3 /* Time after system clock changed. */
  76. #define OLD_TIME 4 /* Time when system clock changed. */
  77. #define INIT_PROCESS 5 /* Process spawned by the init process. */
  78. #define LOGIN_PROCESS 6 /* Session leader of a logged in user. */
  79. #define USER_PROCESS 7 /* Normal process. */
  80. #define DEAD_PROCESS 8 /* Terminated process. */
  81. #ifdef __USE_GNU
  82. # define ACCOUNTING 9 /* System accounting. */
  83. #endif