glibc/pwd/getpw.c
1996-10-02 01:40:17 +00:00

54 lines
1.5 KiB
C

/* Copyright (C) 1991, 1992, 1996 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <errno.h>
#include <stdio.h>
#include <pwd.h>
/* Re-construct the password-file line for the given uid
in the given buffer. This knows the format that the caller
will expect, but this need not be the format of the password file. */
int __getpw __P ((__uid_t uid, char *buf));
int
__getpw (uid, buf)
__uid_t uid;
register char *buf;
{
register struct passwd *p;
if (buf == NULL)
{
__set_errno (EINVAL);
return -1;
}
p = getpwuid (uid);
if (p == NULL)
return -1;
if (sprintf (buf, "%s:%s:%u:%u:%s:%s:%s", p->pw_name, p->pw_passwd,
p->pw_uid, p->pw_gid, p->pw_gecos, p->pw_dir, p->pw_shell) < 0)
return -1;
return 0;
}
weak_alias (__getpw, getpw)