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ix_get_vars2.c
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1996-09-28
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125 lines
/*
* This file is part of ixemul.library for the Amiga.
* Copyright (C) 1991, 1992 Markus M. Wild
*
* This 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.
*
* This 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 this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* ix_get_vars2.c,v 1.1.1.1 1994/04/04 04:30:55 amiga Exp
*
* ix_get_vars2.c,v
* Revision 1.1.1.1 1994/04/04 04:30:55 amiga
* Initial CVS check in.
*
* Revision 1.4 1992/08/09 20:49:16 amiga
* add cast
*
* Revision 1.3 1992/07/04 19:14:44 mwild
* add new variable, environ-in, primarly support for fork-emulation in ksh
*
* Revision 1.2 1992/05/20 01:32:00 mwild
* do atexit(_cleanup) here, ix_open is the wrong place
*
* Revision 1.1 1992/05/14 19:55:40 mwild
* Initial revision
*
*/
#define _KERNEL
#include "ixemul.h"
#include "kprintf.h"
#include <stdio.h>
#include <stdlib.h>
extern char _ctype_[];
extern int sys_nerr;
extern void _cleanup();
/* too bad this is necessary, but the old function didn't know how to tell
* how many values to fill out, making later extensions impossible without
* breaking old executables. This one uses an explicit counter for this.
*/
void
ix_get_vars2 (int argc, char **ctype, int *_sys_nerr,
struct Library **sysbase, struct Library **dosbase,
FILE ***fpp, char ***environ_out, char ***environ_in,
int *real_errno, int *real_h_errno, struct __res_state *_res,
int *_res_socket)
{
switch (argc)
{
default:
case 11:
if (_res_socket)
u.u_res_socket = _res_socket;
case 10:
if (_res)
u.u_res = _res;
case 9:
if (real_h_errno)
{
u.u_h_errno = real_h_errno;
}
case 8:
/* Needed in pdksh: after the ix_resident call the child needs to
tell ixemul.library what the new address of the errno variable is. */
if (real_errno)
{
u.u_errno = real_errno;
/* assume when h_errno is set, errno is set also */
if (u.u_ixnetbase)
netcall(NET_set_errno, real_errno, u.u_h_errno);
}
case 7:
/* a `bit' kludgy.. */
if (environ_in) *environ_in = *u.u_environ;
case 6:
if (environ_out) u.u_environ = environ_out;
case 5:
if (fpp)
{
__init_stdinouterr ();
*fpp = (FILE **) &u.u_sF[0];
/* make sure all stdio buffers are flushed on exit() */
atexit (_cleanup);
}
case 4:
if (dosbase) *dosbase = (struct Library *)DOSBase;
case 3:
if (sysbase) *sysbase = (struct Library *)SysBase;
case 2:
if (_sys_nerr) *_sys_nerr = sys_nerr;
case 1:
if (ctype) *ctype = _ctype_;
case 0:
break;
}
/* now that system start is over, free the tracer */
u.u_trace_flags = 0;
}