Difference between revisions of "SOCU:gethostbyaddr"
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(Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x000E00C2] |- | 1 | Input address buffer size. |- | 2 | Type (should be AF_INET) ...") |
DaniElectra (talk | contribs) (→Description: Add hostent struct docs) |
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| (One intermediate revision by one other user not shown) | |||
| Line 36: | Line 36: | ||
| Pointer to output buf | | Pointer to output buf | ||
|} | |} | ||
| + | |||
| + | =Response= | ||
| + | {| class="wikitable" border="1" | ||
| + | |- | ||
| + | ! 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. | ||
Latest revision as of 01:06, 29 March 2024
Request[edit]
| 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[edit]
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
| 2 | POSIX return value |
struct hostent[edit]
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.