SOCU:gethostbyaddr

Request

Index Word	Description
0	Header code [0x000E00C2]
1	Input address buffer size.
2	Type (should be AF_INET)
3	Output buffer size, normally 0x1A88-bytes.
4	(insize<<14) | 0x1002
5	Pointer to input address buffer

The following is located 0x100-bytes after the beginning of the above command buffer:

Index Word	Description
0	(outsize<<14) | 2
1	Pointer to output buf

Response

Index Word	Description
0	Header code
1	Result code
2	POSIX return value

struct hostent

Internally the sysmodule uses the standard hostent struct, but using s16 for h_addrtype and h_length:

struct hostent {
	char*  h_name;
	char** h_aliases;
	s16    h_addrtype;
	s16    h_length;
	char** h_addr_list;
};

However, the struct returned is different from the internal one:

struct hostent_3ds_t {
	s16           h_addrtype;    //< Host address type
	s16           h_length;      //< Length of address. Maximum of 16 for IPV6
	s16           h_addr_count;  //< Number of addresses returned. Maximum of 24
	s16           h_alias_count; //< Number of aliases returned. Maximum of 24
	char[256]     h_name;        //< Official name of host
	char[256][24] h_aliases;     //< Alias list
	char[16][24]  h_addr_list;   //< List of addresses from name server
};

Its size is of 0x1A88 bytes.