1 /* Copyright (C) 1997, 1998, 1999, 2003 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 52 This function is a possible cancellation point and therefore not 53 marked with __THROW. */ 54 extern void setutxent (void); 55 56 /* Close user accounting database. 57 58 This function is a possible cancellation point and therefore not 59 marked with __THROW. */ 60 extern void endutxent (void); 61 62 /* Get the next entry from the user accounting database. 63 64 This function is a possible cancellation point and therefore not 65 marked with __THROW. */ 66 extern struct utmpx *getutxent (void); 67 68 /* Get the user accounting database entry corresponding to ID. 69 70 This function is a possible cancellation point and therefore not 71 marked with __THROW. */ 72 extern struct utmpx *getutxid (__const struct utmpx *__id); 73 74 /* Get the user accounting database entry corresponding to LINE. 75 76 This function is a possible cancellation point and therefore not 77 marked with __THROW. */ 78 extern struct utmpx *getutxline (__const struct utmpx *__line); 79 80 /* Write the entry UTMPX into the user accounting database. 81 82 This function is a possible cancellation point and therefore not 83 marked with __THROW. */ 84 extern struct utmpx *pututxline (__const struct utmpx *__utmpx); 85 86 87 #ifdef __USE_GNU 88 /* Change name of the utmpx file to be examined. 89 90 This function is not part of POSIX and therefore no official 91 cancellation point. But due to similarity with an POSIX interface 92 or due to the implementation it is a cancellation point and 93 therefore not marked with __THROW. */ 94 extern int utmpxname (__const char *__file); 95 96 /* Append entry UTMP to the wtmpx-like file WTMPX_FILE. 97 98 This function is not part of POSIX and therefore no official 99 cancellation point. But due to similarity with an POSIX interface 100 or due to the implementation it is a cancellation point and 101 therefore not marked with __THROW. */ 102 extern void updwtmpx (__const char *__wtmpx_file, 103 __const struct utmpx *__utmpx); 104 105 106 /* Copy the information in UTMPX to UTMP. 107 108 This function is not part of POSIX and therefore no official 109 cancellation point. But due to similarity with an POSIX interface 110 or due to the implementation it is a cancellation point and 111 therefore not marked with __THROW. */ 112 extern void getutmp (__const struct utmpx *__utmpx, 113 struct utmp *__utmp); 114 115 /* Copy the information in UTMP to UTMPX. 116 117 This function is not part of POSIX and therefore no official 118 cancellation point. But due to similarity with an POSIX interface 119 or due to the implementation it is a cancellation point and 120 therefore not marked with __THROW. */ 121 extern void getutmpx (__const struct utmp *__utmp, 122 struct utmpx *__utmpx); 123 #endif 124 125 __END_DECLS 126 127 #endif /* utmpx.h */ 128
