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+/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* Declaration of types and functions for shadow password suite. */
+
+#ifndef _SHADOW_H
+#define _SHADOW_H 1
+
+#include <features.h>
+
+#include <paths.h>
+
+#define __need_FILE
+#include <stdio.h>
+#define __need_size_t
+#include <stddef.h>
+
+/* Paths to the user database files. */
+#define SHADOW _PATH_SHADOW
+
+
+__BEGIN_DECLS
+
+/* Structure of the password file. */
+struct spwd
+ {
+ char *sp_namp; /* Login name. */
+ char *sp_pwdp; /* Encrypted password. */
+ long int sp_lstchg; /* Date of last change. */
+ long int sp_min; /* Minimum number of days between changes. */
+ long int sp_max; /* Maximum number of days between changes. */
+ long int sp_warn; /* Number of days to warn user to change
+ the password. */
+ long int sp_inact; /* Number of days the account may be
+ inactive. */
+ long int sp_expire; /* Number of days since 1970-01-01 until
+ account expires. */
+ unsigned long int sp_flag; /* Reserved. */
+ };
+
+
+/* Open database for reading. */
+extern void setspent (void) __THROW;
+
+/* Close database. */
+extern void endspent (void) __THROW;
+
+/* Get next entry from database, perhaps after opening the file. */
+extern struct spwd *getspent (void) __THROW;
+
+/* Get shadow entry matching NAME. */
+extern struct spwd *getspnam (__const char *__name) __THROW;
+
+/* Read shadow entry from STRING. */
+extern struct spwd *sgetspent (__const char *__string) __THROW;
+
+/* Read next shadow entry from STREAM. */
+extern struct spwd *fgetspent (FILE *__stream) __THROW;
+
+/* Write line containing shadow password entry to stream. */
+extern int putspent (__const struct spwd *__p, FILE *__stream) __THROW;
+
+
+#ifdef __USE_MISC
+/* Reentrant versions of some of the functions above. */
+extern int getspent_r (struct spwd *__result_buf, char *__buffer,
+ size_t __buflen, struct spwd **__result) __THROW;
+
+extern int getspnam_r (__const char *__name, struct spwd *__result_buf,
+ char *__buffer, size_t __buflen,
+ struct spwd **__result)__THROW;
+
+extern int sgetspent_r (__const char *__string, struct spwd *__result_buf,
+ char *__buffer, size_t __buflen,
+ struct spwd **__result) __THROW;
+
+extern int fgetspent_r (FILE *__stream, struct spwd *__result_buf,
+ char *__buffer, size_t __buflen,
+ struct spwd **__result) __THROW;
+#endif /* misc */
+
+/* Protect password file against multi writers. */
+extern int lckpwdf (void) __THROW;
+
+/* Unlock password file. */
+extern int ulckpwdf (void) __THROW;
+
+__END_DECLS
+
+#endif /* shadow.h */