sysdeps/gnu/utmpx.h

   1 /* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _UTMPX_H
  20 #define _UTMPX_H        1
  21
  22 #include <features.h>
  23 #include <sys/time.h>
  24
  25 /* Required according to Unix98.  */
  26 #ifndef __pid_t_defined
  27 typedef __pid_t pid_t;
  28 # define __pid_t_defined
  29 #endif
  30
  31 /* Get system dependent values and data structures.  */
  32 #include <bits/utmpx.h>
  33
  34 #ifdef __USE_GNU
  35 /* Compatibility names for the strings of the canonical file names.  */
  36 # define UTMPX_FILE     _PATH_UTMPX
  37 # define UTMPX_FILENAME _PATH_UTMPX
  38 # define WTMPX_FILE     _PATH_WTMPX
  39 # define WTMPX_FILENAME _PATH_WTMPX
  40 #endif
  41
  42 /* For the getutmp{,x} functions we need the `struct utmp'.  */
  43 #ifdef __USE_GNU
  44 struct utmp;
  45 #endif
  46
  47
  48 __BEGIN_DECLS
  49
  50 /* Open user accounting database.  */
  51 extern void setutxent (void) __THROW;
  52
  53 /* Close user accounting database.  */
  54 extern void endutxent (void) __THROW;
  55
  56 /* Get the next entry from the user accounting database.  */
  57 extern struct utmpx *getutxent (void) __THROW;
  58
  59 /* Get the user accounting database entry corresponding to ID.  */
  60 extern struct utmpx *getutxid (__const struct utmpx *__id) __THROW;
  61
  62 /* Get the user accounting database entry corresponding to LINE.  */
  63 extern struct utmpx *getutxline (__const struct utmpx *__line) __THROW;
  64
  65 /* Write the entry UTMPX into the user accounting database.  */
  66 extern struct utmpx *pututxline (__const struct utmpx *__utmpx) __THROW;
  67
  68
  69 #ifdef __USE_GNU
  70 /* Change name of the utmpx file to be examined.  */
  71 extern int utmpxname (__const char *__file) __THROW;
  72
  73 /* Append entry UTMP to the wtmpx-like file WTMPX_FILE.  */
  74 extern void updwtmpx (__const char *__wtmpx_file,
  75                       __const struct utmpx *__utmpx) __THROW;
  76
  77
  78 /* Copy the information in UTMPX to UTMP. */
  79 extern void getutmp (__const struct utmpx *__utmpx,
  80                      struct utmp *__utmp) __THROW;
  81
  82 /* Copy the information in UTMP to UTMPX. */
  83 extern void getutmpx (__const struct utmp *__utmp,
  84                       struct utmpx *__utmpx) __THROW;
  85 #endif
  86
  87 __END_DECLS
  88
  89 #endif /* utmpx.h  */