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148 lines
4.5 KiB
C
148 lines
4.5 KiB
C
/* Copyright (C) 1991, 92, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/*
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* POSIX Standard: 9.2.2 User Database Access <pwd.h>
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*/
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#ifndef _PWD_H
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#define _PWD_H 1
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#include <features.h>
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__BEGIN_DECLS
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#include <bits/types.h>
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#define __need_size_t
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#include <stddef.h>
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#ifdef __USE_XOPEN
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/* The Single Unix specification says that some more types are
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available here. */
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# ifndef __gid_t_defined
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typedef __gid_t gid_t;
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# define __gid_t_defined
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# endif
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# ifndef __uid_t_defined
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typedef __uid_t uid_t;
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# define __uid_t_defined
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# endif
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#endif
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/* The passwd structure. */
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struct passwd
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{
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char *pw_name; /* Username. */
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char *pw_passwd; /* Password. */
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__uid_t pw_uid; /* User ID. */
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__gid_t pw_gid; /* Group ID. */
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char *pw_gecos; /* Real name. */
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char *pw_dir; /* Home directory. */
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char *pw_shell; /* Shell program. */
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};
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#if defined __USE_SVID || defined __USE_GNU
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# define __need_FILE
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# include <stdio.h>
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#endif
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#if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN_EXTENDED
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/* Rewind the password-file stream. */
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extern void setpwent (void) __THROW;
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/* Close the password-file stream. */
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extern void endpwent (void) __THROW;
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/* Read an entry from the password-file stream, opening it if necessary. */
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extern struct passwd *getpwent (void) __THROW;
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#endif
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#ifdef __USE_SVID
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/* Read an entry from STREAM. */
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extern struct passwd *fgetpwent (FILE *__stream) __THROW;
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/* Write the given entry onto the given stream. */
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extern int putpwent (__const struct passwd *__restrict __p,
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FILE *__restrict __f) __THROW;
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#endif
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/* Search for an entry with a matching user ID. */
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extern struct passwd *getpwuid (__uid_t __uid) __THROW;
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/* Search for an entry with a matching username. */
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extern struct passwd *getpwnam (__const char *__name) __THROW;
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#if defined __USE_POSIX || defined __USE_MISC
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# ifdef __USE_MISC
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/* Reasonable value for the buffer sized used in the reentrant
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functions below. But better use `sysconf'. */
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# define NSS_BUFLEN_PASSWD 1024
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# endif
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/* Reentrant versions of some of the functions above.
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PLEASE NOTE: the `getpwent_r' function is not (yet) standardized.
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The interface may change in later versions of this library. But
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the interface is designed following the principals used for the
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other reentrant functions so the chances are good this is what the
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POSIX people would choose. */
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# if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN_EXTENDED
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extern int getpwent_r (struct passwd *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct passwd **__restrict __result) __THROW;
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# endif
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extern int getpwuid_r (__uid_t __uid,
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struct passwd *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct passwd **__restrict __result) __THROW;
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extern int getpwnam_r (__const char *__restrict __name,
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struct passwd *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct passwd **__restrict __result) __THROW;
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# ifdef __USE_SVID
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/* Read an entry from STREAM. This function is not standardized and
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probably never will. */
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extern int fgetpwent_r (FILE *__restrict __stream,
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struct passwd *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct passwd **__restrict __result) __THROW;
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# endif
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#endif /* POSIX or reentrant */
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#ifdef __USE_GNU
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/* Re-construct the password-file line for the given uid
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in the given buffer. This knows the format that the caller
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will expect, but this need not be the format of the password file. */
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extern int getpw (__uid_t __uid, char *__buffer) __THROW;
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#endif
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__END_DECLS
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#endif /* pwd.h */
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