Blame src/socket/ntapi_sc_recv.c

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/********************************************************/
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/*  ntapi: Native API core library                      */
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/*  Copyright (C) 2013--2021  SysDeer Technologies, LLC */
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/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */
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/********************************************************/
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#include <psxtypes/psxtypes.h>
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#include <ntapi/nt_object.h>
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#include <ntapi/nt_file.h>
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#include <ntapi/nt_socket.h>
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#include <ntapi/ntapi.h>
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#include "ntapi_impl.h"
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typedef struct _nt_afd_recv_udp_info {
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	nt_afd_recv_info	afd_recv;
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	nt_sockaddr *		addr;
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	nt_sockaddr_reply *	raddr;
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} nt_afd_recv_udp_info;
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int32_t __cdecl __ntapi_sc_recv(
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	__in		nt_socket *		hssocket,
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	__in		const void *		buffer,
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	__in		size_t			len,
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	__out		ssize_t *		bytes_received	__optional,
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	__in		nt_sockaddr_reply *	raddr		__optional,
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	__in		uintptr_t		afdflags	__optional,
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	__in		uintptr_t		tdiflags	__optional,
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	__out		nt_iosb volatile *	iosb		__optional)
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{
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	nt_afd_buffer		afd_buffer;
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	nt_afd_recv_udp_info	afd_recv;
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	nt_iosb volatile	siosb;
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	iosb = iosb ? iosb : &siosb;
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	/* conditional connect */
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	if (raddr && (hssocket->protocol == NT_IPPROTO_UDP)) {
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		afd_recv.raddr  = raddr;
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		raddr->addrlen  = sizeof(raddr->addr);
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		afd_recv.addr   = &raddr->addr;
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	} else
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		raddr = 0;
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	/* tdiflags */
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	if (tdiflags == 0)
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		tdiflags = NT_TDI_RECEIVE_NORMAL;
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	/* afd_buffer */
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	afd_buffer.length = len;
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	afd_buffer.buffer = (char *)buffer;
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	/* afd_recv.afd_recv */
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	afd_recv.afd_recv.afd_buffer_array = &afd_buffer;
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	afd_recv.afd_recv.buffer_count     = 1;
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	afd_recv.afd_recv.afd_flags = (uint32_t)afdflags;
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	afd_recv.afd_recv.tdi_flags = (uint32_t)tdiflags;
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	if ((hssocket->iostatus = __ntapi->zw_device_io_control_file(
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			hssocket->hsocket,
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			hssocket->hevent,
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			0,
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			0,
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			iosb,
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			raddr ? NT_AFD_IOCTL_UDP_RECV : NT_AFD_IOCTL_RECV,
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			&afd_recv,
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			raddr ? sizeof(afd_recv) : sizeof(afd_recv.afd_recv),
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			0,
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			0)))
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		return hssocket->iostatus;
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	if (bytes_received)
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		*bytes_received = iosb->info;
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	return NT_STATUS_SUCCESS;
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}