gshadow/gshadow.h

   1 /* Copyright (C) 2009-2015 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 */