--- /dev/null
+/* Copyright (C) 1991-2018 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, see
+ <http://www.gnu.org/licenses/>. */
+
+/*
+ * POSIX Standard: 9.2.2 User Database Access <pwd.h>
+ */
+
+#ifndef _PWD_H
+#define _PWD_H 1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+#include <bits/types.h>
+
+#define __need_size_t
+#include <stddef.h>
+
+#if defined __USE_XOPEN || defined __USE_XOPEN2K
+/* The Single Unix specification says that some more types are
+ available here. */
+# ifndef __gid_t_defined
+typedef __gid_t gid_t;
+# define __gid_t_defined
+# endif
+
+# ifndef __uid_t_defined
+typedef __uid_t uid_t;
+# define __uid_t_defined
+# endif
+#endif
+
+/* A record in the user database. */
+struct passwd
+{
+ char *pw_name; /* Username. */
+ char *pw_passwd; /* Hashed passphrase, if shadow database
+ not in use (see shadow.h). */
+ __uid_t pw_uid; /* User ID. */
+ __gid_t pw_gid; /* Group ID. */
+ char *pw_gecos; /* Real name. */
+ char *pw_dir; /* Home directory. */
+ char *pw_shell; /* Shell program. */
+};
+
+
+#ifdef __USE_MISC
+# include <bits/types/FILE.h>
+#endif
+
+
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
+/* Rewind the user database stream.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void setpwent (void);
+
+/* Close the user database stream.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void endpwent (void);
+
+/* Read an entry from the user database stream, opening it if necessary.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct passwd *getpwent (void);
+#endif
+
+#ifdef __USE_MISC
+/* Read a user database entry from STREAM.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern struct passwd *fgetpwent (FILE *__stream) __nonnull ((1));
+
+/* Write a given user database entry onto the given stream.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int putpwent (const struct passwd *__restrict __p,
+ FILE *__restrict __f);
+#endif
+
+/* Retrieve the user database entry for the given user ID.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct passwd *getpwuid (__uid_t __uid);
+
+/* Retrieve the user database entry for the given username.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct passwd *getpwnam (const char *__name) __nonnull ((1));
+
+#ifdef __USE_POSIX
+
+# ifdef __USE_MISC
+/* Reasonable value for the buffer sized used in the reentrant
+ functions below. But better use `sysconf'. */
+# define NSS_BUFLEN_PASSWD 1024
+# endif
+
+/* Reentrant versions of some of the functions above.
+
+ PLEASE NOTE: the `getpwent_r' function is not (yet) standardized.
+ The interface may change in later versions of this library. But
+ the interface is designed following the principals used for the
+ other reentrant functions so the chances are good this is what the
+ POSIX people would choose. */
+
+# ifdef __USE_MISC
+/* This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int getpwent_r (struct passwd *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct passwd **__restrict __result)
+ __nonnull ((1, 2, 4));
+# endif
+
+extern int getpwuid_r (__uid_t __uid,
+ struct passwd *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct passwd **__restrict __result)
+ __nonnull ((2, 3, 5));
+
+extern int getpwnam_r (const char *__restrict __name,
+ struct passwd *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct passwd **__restrict __result)
+ __nonnull ((1, 2, 3, 5));
+
+
+# ifdef __USE_MISC
+/* Read a user database entry from STREAM. This function is not
+ standardized and probably never will.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int fgetpwent_r (FILE *__restrict __stream,
+ struct passwd *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct passwd **__restrict __result)
+ __nonnull ((1, 2, 3, 5));
+# endif
+
+#endif /* POSIX or reentrant */
+
+#ifdef __USE_GNU
+/* Write a traditional /etc/passwd line, based on the user database
+ entry for the given UID, to BUFFER; space for BUFFER must be
+ allocated by the caller.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int getpw (__uid_t __uid, char *__buffer);
+#endif
+
+__END_DECLS
+
+#endif /* pwd.h */
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