/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <alloca.h> #include <errno.h> #include <stdio.h> #include <unistd.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; char *buf; { size_t buflen; char *tmpbuf; struct passwd resbuf, *p; if (buf == NULL) { __set_errno (EINVAL); return -1; } buflen = __sysconf (_SC_GETPW_R_SIZE_MAX); tmpbuf = alloca (buflen); if (getpwuid_r (uid, &resbuf, tmpbuf, buflen, &p) < 0) 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)