shadow/shadow.h

   1 /* Copyright (C) 1996 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 Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17 Boston, MA 02111-1307, USA.  */
  18
  19 /* Declaration of types and functions for shadow password suite.  */
  20
  21 #ifndef _SHADOW_H
  22
  23 #define _SHADOW_H       1
  24 #include <features.h>
  25
  26 #define __need_FILE
  27 #include <stdio.h>
  28
  29 /* Paths to the userd files.  */
  30 #define SHADOW "/etc/shadow"
  31
  32
  33 __BEGIN_DECLS
  34
  35 /* Structure of the password file.  */
  36 struct spwd
  37 {
  38   char *sp_namp;                /* Login name.  */
  39   char *sp_pwdp;                /* Encrypted password.  */
  40   long int sp_lstchg;           /* Date of last change.  */
  41   long int sp_min;              /* Minimum number of days between changes.  */
  42   long int sp_max;              /* Maximum number of days between changes.  */
  43   long int sp_warn;             /* Number of days to warn user to change
  44                                    the password.  */
  45   long int sp_inact;            /* Number of days the account may be
  46                                    inactive.  */
  47   long int sp_expire;           /* Number of days since 1970-01-01 until
  48                                    account expires.  */
  49   unsigned long int sp_flag;    /* Reserved.  */
  50 };
  51
  52
  53 /* Open database for reading.  */
  54 extern void setspent __P ((void));
  55
  56 /* Close database.  */
  57 extern void endspent __P ((void));
  58
  59 /* Get next entry from database, perhaps after opening the file.  */
  60 extern struct spwd *getspent __P ((void));
  61
  62 /* Get shadow entry matching NAME.  */
  63 extern struct spwd *getspnam __P ((__const char *__name));
  64
  65 /* Read shadow entry from STRING.  */
  66 extern struct spwd *sgetspent __P ((__const char *__string));
  67
  68 /* Read next shadow entry from STREAM.  */
  69 extern struct spwd *fgetspent __P ((FILE *__stream));
  70
  71 /* Write line containing shadow password entry to stream.  */
  72 extern int putspent __P ((__const struct spwd *__p, FILE *__stream));
  73
  74
  75 #ifdef  __USE_REENTRANT
  76 /* Reentrant versions of some of the functions above.  */
  77 extern struct spwd *__getspent_r __P ((struct spwd *__result_buf,
  78                                        char *__buffer, int __buflen));
  79 extern struct spwd *getspent_r __P ((struct spwd *__result_buf,
  80                                      char *__buffer, int __buflen));
  81
  82 extern struct spwd *__getspnam_r __P ((__const char *__name,
  83                                        struct spwd *__result_buf,
  84                                        char *__buffer, int __buflen));
  85 extern struct spwd *getspnam_r __P ((__const char *__name,
  86                                      struct spwd *__result_buf,
  87                                      char *__buffer, int __buflen));
  88
  89 extern struct spwd *__sgetspent_r __P ((__const char *__string,
  90                                         struct spwd *__result_buf,
  91                                         char *__buffer, int __buflen));
  92 extern struct spwd *sgetspent_r __P ((__const char *__string,
  93                                       struct spwd *__result_buf,
  94                                       char *__buffer, int __buflen));
  95
  96 extern struct spwd *__fgetspent_r __P ((FILE *__stream,
  97                                         struct spwd *__result_buf,
  98                                         char *__buffer, int __buflen));
  99 extern struct spwd *fgetspent_r __P ((FILE *__stream,
 100                                       struct spwd *__result_buf,
 101                                       char *__buffer, int __buflen));
 102 #endif  /* reentrant */
 103
 104
 105 /* Protect password file against multi writers.  */
 106 extern int __lckpwdf __P ((void));
 107 extern int lckpwdf __P ((void));
 108
 109 /* Unlock password file.  */
 110 extern int __ulckpwdf __P ((void));
 111 extern int ulckpwdf __P ((void));
 112
 113 __END_DECLS
 114
 115 #endif /* shadow.h */