IpUtils.h File Reference

#include <stdint.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ws2tcpip.h>

Go to the source code of this file.

Namespaces
	pcpp
	The main namespace for the PcapPlusPlus lib.

Functions
const char *	inet_ntop (int af, const void *src, char *dst, size_t size)
int	inet_pton (int af, const char *src, void *dst)
in_addr *	pcpp::internal::sockaddr2in_addr (sockaddr *sa)
in_addr *	pcpp::internal::try_sockaddr2in_addr (sockaddr *sa)
in6_addr *	pcpp::internal::sockaddr2in6_addr (sockaddr *sa)
in6_addr *	pcpp::internal::try_sockaddr2in6_addr (sockaddr *sa)
void	pcpp::internal::sockaddr2string (sockaddr const *sa, char *resultString, size_t resultBufLen)
uint32_t	pcpp::internal::in_addr2int (in_addr inAddr)

Function Documentation

in_addr2int()

uint32_t pcpp::internal::in_addr2int

(

in_addr

inAddr

)

Convert a in_addr format address to 32bit representation

Parameters

[in]

inAddr

Address in in_addr format

Returns

Address in 32bit format

inet_ntop()

const char* inet_ntop	(	int	af,
		const void *	src,
		char *	dst,
		size_t	size
	)

Convert a network format address to presentation format.

Parameters

[in]	af	Address family, can be either AF_INET (IPv4) or AF_INET6 (IPv6)
[in]	src	Network address structure, can be either in_addr (IPv4) or in6_addr (IPv6)
[out]	dst	Network address string representation
[in]	size	'dst' Maximum size

Returns

pointer to presentation format address ('dst'), or nullptr (see errno).

inet_pton()

int inet_pton	(	int	af,
		const char *	src,
		void *	dst
	)

Convert from presentation format (which usually means ASCII printable) to network format (which is usually some kind of binary format).

Parameters

[in]	af	Address family, can be either AF_INET (IPv4) or AF_INET6 (IPv6)
[in]	src	Network address string representation
[out]	dst	Network address structure result, can be either in_addr (IPv4) or in6_addr (IPv6)

Returns

1 if the address was valid for the specified address family; 0 if the address wasn't valid ('dst' is untouched in this case); -1 if some other error occurred ('dst' is untouched in this case, too)

sockaddr2in6_addr()

in6_addr* pcpp::internal::sockaddr2in6_addr

(

sockaddr *

sa

)

Extract IPv6 address from sockaddr

Parameters

[in]

sa

- input sockaddr

Returns

Address in in6_addr format

Exceptions

std::invalid_argument

Sockaddr family is not AF_INET6 or sockaddr is nullptr.

sockaddr2in_addr()

in_addr* pcpp::internal::sockaddr2in_addr

(

sockaddr *

sa

)

Extract IPv4 address from sockaddr

Parameters

[in]

sa

- input sockaddr

Returns

Address in in_addr format

Exceptions

std::invalid_argument

Sockaddr family is not AF_INET or sockaddr is nullptr.

sockaddr2string()

void pcpp::internal::sockaddr2string	(	sockaddr const *	sa,
		char *	resultString,
		size_t	resultBufLen
	)

Converts a sockaddr format address to its string representation

Parameters

[in]	sa	Address in sockaddr format
[out]	resultString	String representation of the address
[in]	resultBufLen	Length of the result buffer.

Exceptions

std::invalid_argument

Sockaddr family is not AF_INET or AF_INET6, sockaddr is nullptr or the result str buffer is insufficient.

try_sockaddr2in6_addr()

in6_addr* pcpp::internal::try_sockaddr2in6_addr

(

sockaddr *

sa

)

Attempt to extract IPv6 address from sockaddr

Parameters

[in]

sa

- input sockaddr

Returns

Pointer to address in in6_addr format or nullptr if extraction fails.

try_sockaddr2in_addr()

in_addr* pcpp::internal::try_sockaddr2in_addr

(

sockaddr *

sa

)

Attempt to extract IPv4 address from sockaddr

Parameters

[in]

sa

- input sockaddr

Returns

Pointer to address in in_addr format or nullptr if extraction fails.