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getpwent.cc
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1996-11-20
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/*
Copyright (C) 1996 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
Octave 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#include "defun-dld.h"
#include "error.h"
#include "gripes.h"
#include "help.h"
#include "oct-map.h"
#include "ov.h"
#include "oct-obj.h"
#include "utils.h"
// Password file functions. (Why not?)
static octave_value
mk_pw_map (struct passwd *pw)
{
octave_value retval;
if (pw)
{
Octave_map m;
m ["name"] = pw->pw_name;
m ["passwd"] = pw->pw_passwd;
m ["uid"] = STATIC_CAST (double, pw->pw_uid);
m ["gid"] = STATIC_CAST (double, pw->pw_gid);
m ["gecos"] = pw->pw_gecos;
m ["dir"] = pw->pw_dir;
m ["shell"] = pw->pw_shell;
retval = m;
}
else
retval = 0.0;
return retval;
}
DEFUN_DLD (getpwent, args, ,
"getpwent ()\n\
\n\
Read an entry from the password-file stream, opening it if necessary.")
{
octave_value retval;
int nargin = args.length ();
if (nargin == 0)
{
#ifdef HAVE_GETPWENT
retval = mk_pw_map (getpwent ());
#else
gripe_not_supported ("getpwent");
#endif
}
else
print_usage ("getpwent");
return retval;
}
DEFUN_DLD (getpwuid, args, ,
"getpwuid (UID)\n\
\n\
Search for a password entry with a matching user ID.")
{
octave_value retval;
int nargin = args.length ();
if (nargin == 1)
{
#ifdef HAVE_GETPWUID
double dval = args(0).double_value ();
if (! error_state)
{
if (D_NINT (dval) == dval)
{
uid_t uid = STATIC_CAST (uid_t, dval);
retval = mk_pw_map (getpwuid (uid));
}
else
error ("getpwuid: argument must be an integer");
}
#else
gripe_not_supported ("getpwuid");
#endif
}
else
print_usage ("getpwuid");
return retval;
}
DEFUN_DLD (getpwnam, args, ,
"getpwnam (NAME)\n\
\n\
Search for password entry with a matching username.")
{
octave_value retval;
int nargin = args.length ();
if (nargin == 1)
{
#ifdef HAVE_GETPWNAM
string s = args(0).string_value ();
if (! error_state)
retval = mk_pw_map (getpwnam (s.c_str ()));
#else
gripe_not_supported ("getpwnam");
#endif
}
else
print_usage ("getpwnam");
return retval;
}
DEFUN_DLD (setpwent, args, ,
"setpwent ()\n\
\n\
Rewind the password-file stream.")
{
octave_value retval;
int nargin = args.length ();
if (nargin == 0)
{
#ifdef HAVE_SETPWENT
setpwent ();
#else
gripe_not_supported ("setpwent");
#endif
}
else
print_usage ("setpwent");
return retval;
}
DEFUN_DLD (endpwent, args, ,
"endpwent ()\n\
\n\
Close the password-file stream.")
{
octave_value retval;
int nargin = args.length ();
if (nargin == 0)
{
#ifdef HAVE_ENDPWENT
endpwent ();
#else
gripe_not_supported ("endpwent");
#endif
}
else
print_usage ("endpwent");
return retval;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/