1 /* Copyright (C) 2009, 2012 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, see 16 <http://www.gnu.org/licenses/>. */ 17 18 /* Declaration of types and functions for shadow group suite. */ 19 20 #ifndef _GSHADOW_H 21 #define _GSHADOW_H 1 22 23 #include <features.h> 24 25 #include <paths.h> 26 27 #define __need_FILE 28 #include <stdio.h> 29 #define __need_size_t 30 #include <stddef.h> 31 32 /* Path to the user database files. */ 33 #define GSHADOW _PATH_GSHADOW 34 35 36 __BEGIN_DECLS 37 38 /* Structure of the group file. */ 39 struct sgrp 40 { 41 char *sg_namp; /* Group name. */ 42 char *sg_passwd; /* Encrypted password. */ 43 char **sg_adm; /* Group administrator list. */ 44 char **sg_mem; /* Group member list. */ 45 }; 46 47 48 /* Open database for reading. 49 50 This function is not part of POSIX and therefore no official 51 cancellation point. But due to similarity with an POSIX interface 52 or due to the implementation it is a cancellation point and 53 therefore not marked with __THROW. */ 54 extern void setsgent (void); 55 56 /* Close database. 57 58 This function is not part of POSIX and therefore no official 59 cancellation point. But due to similarity with an POSIX interface 60 or due to the implementation it is a cancellation point and 61 therefore not marked with __THROW. */ 62 extern void endsgent (void); 63 64 /* Get next entry from database, perhaps after opening the file. 65 66 This function is not part of POSIX and therefore no official 67 cancellation point. But due to similarity with an POSIX interface 68 or due to the implementation it is a cancellation point and 69 therefore not marked with __THROW. */ 70 extern struct sgrp *getsgent (void); 71 72 /* Get shadow entry matching NAME. 73 74 This function is not part of POSIX and therefore no official 75 cancellation point. But due to similarity with an POSIX interface 76 or due to the implementation it is a cancellation point and 77 therefore not marked with __THROW. */ 78 extern struct sgrp *getsgnam (const char *__name); 79 80 /* Read shadow entry from STRING. 81 82 This function is not part of POSIX and therefore no official 83 cancellation point. But due to similarity with an POSIX interface 84 or due to the implementation it is a cancellation point and 85 therefore not marked with __THROW. */ 86 extern struct sgrp *sgetsgent (const char *__string); 87 88 /* Read next shadow entry from STREAM. 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 struct sgrp *fgetsgent (FILE *__stream); 95 96 /* Write line containing shadow password entry to stream. 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 int putsgent (const struct sgrp *__g, FILE *__stream); 103 104 105 #ifdef __USE_MISC 106 /* Reentrant versions of some of the functions above. 107 108 These functions are 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 they are cancellation points and 111 therefore not marked with __THROW. */ 112 extern int getsgent_r (struct sgrp *__result_buf, char *__buffer, 113 size_t __buflen, struct sgrp **__result); 114 115 extern int getsgnam_r (const char *__name, struct sgrp *__result_buf, 116 char *__buffer, size_t __buflen, 117 struct sgrp **__result); 118 119 extern int sgetsgent_r (const char *__string, struct sgrp *__result_buf, 120 char *__buffer, size_t __buflen, 121 struct sgrp **__result); 122 123 extern int fgetsgent_r (FILE *__stream, struct sgrp *__result_buf, 124 char *__buffer, size_t __buflen, 125 struct sgrp **__result); 126 #endif /* misc */ 127 128 __END_DECLS 129 130 #endif /* gshadow.h */ 131