debian man page for scan_ip6

scan_ip6(3)						     Library Functions Manual						       scan_ip6(3)

NAME
       scan_ip6 - parse an IPv6 number in ASCII representation

SYNTAX
       #include <ip6.h>

       int scan_ip6(const char *src,char ip[16]);

DESCRIPTION
       scan_ip6  parses an IPv6 number in RFC1884 ASCII representation from src and writes the result into ip. It returns the number of bytes read
       from src or 0 if the parsing failed.

       scan_ip6 accepts upper and lower case hex letters, it understands "::" compression and partial IPv4 addresses as in "::FFFF:129.144.52.38".

       To allow transparent usage of IPv4 in IPv6 applications, scan_ip6 also understands IPv4	addresses  in  dotted-decimal  notation  and  will
       return an IPv4-mapped IPv6 address (i.e. "127.0.0.1" will be parsed as "::FFFF:127.0.0.1".

       Unlike  many other IP parsing routines, scan_ip6 does not recognize octal (like 0177.0.0.1) or hexadecimal numbers (like 0x7f000001) in the
       IPv4 part.

EXAMPLE
       #include <str.h>
       #include <ip6.h>

	 char buf[]="::1";
	 char ip[16];
	 if (scan_ip6(buf,ip) != str_len(buf))
	   parse_error();

SEE ALSO
       fmt_ip6(3), scan_ip4(3), inet_pton(3)

																       scan_ip6(3)