Converting a Binary Address to Text

Syntax

inet_ntop(int family, const void *addrptr, char *strptr, site_t len)

The inet_ntop() function call converts an IP address from numeric format to string format. The len parameter specifies the calling function’s buffer size to prevent overflow. Two definitions specify this buffer size for either IPv4 or IPv6 addresses in the <netinet/in.h> header file.

#define		INET_ADDRSTRLEN			16	 /* for IPv4 dotted-decimal */
#define		INET6_ADDRSTRLEN			46 	/* for IPv6 hex string */