main.cpp File Reference

#include <stdint.h>
#include <_xeneva.h>
#include <stdio.h>
#include <sys\_keproc.h>
#include <sys\_kefile.h>
#include <sys\iocodes.h>
#include <string.h>
#include <stdlib.h>
#include <sys\socket.h>

Include dependency graph for main.cpp:

Macros
#define	htonl(l)   ((((l) & 0xFF) << 24) | (((l) & 0xFF00) << 8) | (((l) & 0xFF0000) >> 8) | (((l) & 0xFF000000) >> 24))
#define	htons(s)   ((((s) & 0xFF) << 8) | (((s) & 0xFF00) >> 8))
#define	ntohl(l)   htonl((l))
#define	ntohs(s)   htons((s))
#define	IPV4_PROT_UDP   17
#define	DHCP_MAGIC   0x63825363

Functions
	__declspec (align(2)) typedef struct _ethernet_
	_declspec (align(2)) typedef struct _dhcp_pack_
uint16_t	calculate_ipv4_checksum (IPV4 *p)
Ethernet *	fillDHCP (uint8_t *payload, size_t payload_sz)
void	ClearDHCP (Ethernet *eth)
ssize_t	socket_receive (int sockfd, void *buf, size_t len, int flags)
ssize_t	socket_send (int sockfd, const void *buf, size_t len, int flags)
ssize_t	socket_sendto (int sockfd, const void *buf, size_t len, int flags, sockaddr *dest_addr, socklen_t addrlen)
void	ip_ntoa (uint32_t src_addr, char *out)
int	main (int argc, char *argv[])

Variables
	Ethernet
	IPV4
	UDPPack
	DHCPPack
uint32_t	xid = 0x1337
uint8_t	mac [6]

Macro Definition Documentation

DHCP_MAGIC

#define DHCP_MAGIC   0x63825363

htonl

#define htonl

(

l

)

((((l) & 0xFF) << 24) | (((l) & 0xFF00) << 8) | (((l) & 0xFF0000) >> 8) | (((l) & 0xFF000000) >> 24))

BSD 2-Clause License

Copyright (c) 2023-2024, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

htons

#define htons

(

s

)

((((s) & 0xFF) << 8) | (((s) & 0xFF00) >> 8))

IPV4_PROT_UDP

#define IPV4_PROT_UDP   17

ntohl

#define ntohl

(

l

)

htonl((l))

ntohs

#define ntohs

(

s

)

htons((s))

Function Documentation

__declspec()

__declspec

(

align(2)

)

_declspec()

_declspec

(

align(2)

)

calculate_ipv4_checksum()

uint16_t calculate_ipv4_checksum

(

IPV4 *

p

)

ClearDHCP()

void ClearDHCP

(

Ethernet *

eth

)

fillDHCP()

Ethernet * fillDHCP	(	uint8_t *	payload,
		size_t	payload_sz
	)

ip_ntoa()

void ip_ntoa	(	uint32_t	src_addr,
		char *	out
	)

main()

int main	(	int	argc,
		char *	argv[]
	)

socket_receive()

ssize_t socket_receive	(	int	sockfd,
		void *	buf,
		size_t	len,
		int	flags
	)

socket_send()

ssize_t socket_send	(	int	sockfd,
		const void *	buf,
		size_t	len,
		int	flags
	)

socket_sendto()

ssize_t socket_sendto	(	int	sockfd,
		const void *	buf,
		size_t	len,
		int	flags,
		sockaddr *	dest_addr,
		socklen_t	addrlen
	)

Variable Documentation

DHCPPack

DHCPPack

Ethernet

Ethernet

IPV4

IPV4

mac

uint8_t mac[6]

UDPPack

UDPPack

xid

uint32_t xid = 0x1337