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/********************************************************/
/* ntapi: Native API core library */
/* Copyright (C) 2013--2017 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */
/********************************************************/
#include <psxtypes/psxtypes.h>
#include <ntapi/nt_port.h>
#include <ntapi/nt_tty.h>
#include <ntapi/ntapi.h>
#include "ntapi_impl.h"
#include "ntapi_pty.h"
static int32_t __stdcall __ntapi_pty_read_write(
nt_pty * pty,
void * hevent,
nt_io_apc_routine * apc_routine,
void * apc_context,
nt_iosb * iosb,
void * buffer,
size_t nbytes,
nt_large_integer * offset,
uint32_t * key,
int32_t opcode)
{
int32_t status;
nt_pty_io_msg msg;
off_t soffset;
int mode;
mode = opcode - NT_TTY_PTY_READ;
soffset = mode * pty->section_size / 2;
if (offset && offset->quad)
return NT_STATUS_INVALID_PARAMETER;
nbytes = nbytes <= pty->section_size / 2
? nbytes
: pty->section_size / 2;
__ntapi->tt_aligned_block_memset(
&msg,0,sizeof(msg));
msg.header.msg_type = NT_LPC_NEW_MESSAGE;
msg.header.data_size = sizeof(msg.data);
msg.header.msg_size = sizeof(msg);
msg.data.ttyinfo.opcode = opcode;
msg.data.ioinfo.hpty = pty->hpty;
msg.data.ioinfo.hevent = hevent;
msg.data.ioinfo.apc_routine = apc_routine;
msg.data.ioinfo.apc_context = apc_context;
msg.data.ioinfo.key = key ? *key : 0;
msg.data.ioinfo.luid.high = pty->luid.high;
msg.data.ioinfo.luid.low = pty->luid.low;
msg.data.ioinfo.riosb = iosb;
msg.data.ioinfo.raddr = buffer;
__ntapi->tt_guid_copy(
&msg.data.ioinfo.guid,
&pty->guid);
msg.data.ioinfo.nbytes = nbytes;
msg.data.ioinfo.offset = soffset;
if (mode == __PTY_WRITE)
__ntapi->tt_generic_memcpy(
(char *)pty->section_addr + soffset,
(char *)buffer,
nbytes);
if ((status = __ntapi->zw_request_wait_reply_port(pty->hport,&msg,&msg)))
return status;
else if (msg.data.ttyinfo.status)
return msg.data.ttyinfo.status;
if (mode == __PTY_READ)
__ntapi->tt_generic_memcpy(
(char *)buffer,
(char *)pty->section_addr + soffset,
msg.data.ioinfo.iosb.info);
iosb->info = msg.data.ioinfo.iosb.info;
iosb->status = msg.data.ioinfo.iosb.status;
return NT_STATUS_SUCCESS;
}
int32_t __stdcall __ntapi_pty_read(
__in nt_pty * pty,
__in void * hevent __optional,
__in nt_io_apc_routine * apc_routine __optional,
__in void * apc_context __optional,
__out nt_iosb * iosb,
__out void * buffer,
__in uint32_t nbytes,
__in nt_large_integer * offset __optional,
__in uint32_t * key __optional)
{
return __ntapi_pty_read_write(
pty,
hevent,apc_routine,apc_context,
iosb,buffer,nbytes,offset,key,
NT_TTY_PTY_READ);
}
int32_t __stdcall __ntapi_pty_write(
__in nt_pty * pty,
__in void * hevent __optional,
__in nt_io_apc_routine * apc_routine __optional,
__in void * apc_context __optional,
__out nt_iosb * iosb,
__in void * buffer,
__in uint32_t nbytes,
__in nt_large_integer * offset __optional,
__in uint32_t * key __optional)
{
return __ntapi_pty_read_write(
pty,
hevent,apc_routine,apc_context,
iosb,buffer,nbytes,offset,key,
NT_TTY_PTY_WRITE);
}
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