mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
194 lines
6.2 KiB
C
194 lines
6.2 KiB
C
/* Copyright (C) 1991-2024 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
|
|
<https://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))
|
|
__attr_access ((__write_only__, 2, 3));
|
|
# 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))
|
|
__attr_access ((__write_only__, 3, 4));
|
|
|
|
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))
|
|
__attr_access ((__write_only__, 3, 4));
|
|
|
|
|
|
# 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))
|
|
__attr_access ((__write_only__, 3, 4));
|
|
# 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 */
|