inet.h

Definitions for internet operations.

See also

The Open Group Base Specifications Issue 7, <arpa/inet.h>

INADDRSZ

Size in byte of an IPv4 address. 

1
(4)
IN6ADDRSZ

Size in byte of an IPv6 address. 

1
(16)
const char * inet_ntop(int af, const void *restrict src, char *restrict dst, bytes.h::socklen_t size)

Converts an IP address to its string representation.

Parameters

af:Address family of src. Must be af.h::@179::AF_INET or af.h::@179::AF_INET6.
src:An IP address.
dst:The resulting string representation.
size:Length of result.

Return values

  • dst, on success
  • NULL, if size was smaller than needed
  • NULL, if src or dst was NULL
int inet_pton(int af, const char * src, void * dst)

Converts an IP address string representation to a byte-represented IP address.

Parameters

af:Address family of src. Must be af.h::@179::AF_INET or af.h::@179::AF_INET6.
src:An IP address string representation
dst:The resulting byte representation

Return values

  • 1, on success.
  • 0, if src was malformed or input pointers were NULL.
  • -1, if af is not supported.