NiceAddress: libnice Reference Manual

## NiceAddress NiceAddress — IP address convenience library |

## Stability Level

Stable, unless otherwise indicated

## Functions

void | nice_address_init ()
NiceAddress * | nice_address_new ()
void | nice_address_free ()
NiceAddress * | nice_address_dup ()
void | nice_address_set_ipv4 ()
void | nice_address_set_ipv6 ()
void | nice_address_set_port ()
guint | nice_address_get_port ()
gboolean | nice_address_set_from_string ()
void | nice_address_set_from_sockaddr ()
void | nice_address_copy_to_sockaddr ()
gboolean | nice_address_equal ()
gboolean | nice_address_equal_no_port ()
void | nice_address_to_string ()
gboolean | nice_address_is_private ()
gboolean | nice_address_is_valid ()
int | nice_address_ip_version ()

## Types and Values

| NiceAddress
#define | NICE_ADDRESS_STRING_LEN

## Description

The NiceAddress structure will allow you to easily set/get and modify an IPv4 or IPv6 address in order to communicate with the NiceAgent.

## Functions

### nice_address_init ()

    void
    nice_address_init (NiceAddress *addr);

Initialize a NiceAddress into an undefined address

#### Parameters

addr | The NiceAddress to init |

### nice_address_new ()

    NiceAddress *
    nice_address_new (void);

Create a new NiceAddress with undefined address You must free it with `nice_address_free()`

#### Returns

The new NiceAddress

### nice_address_free ()

    void
    nice_address_free (NiceAddress *addr);

Frees a NiceAddress created with `nice_address_new()` or `nice_address_dup()`

#### Parameters

addr | The NiceAddress to free |

### nice_address_dup ()

    NiceAddress *
    nice_address_dup (const NiceAddress *addr);

Creates a new NiceAddress with the same address as `addr`

#### Parameters

addr | The NiceAddress to dup |

#### Returns

The new NiceAddress

### nice_address_set_ipv4 ()

    void
    nice_address_set_ipv4 (NiceAddress *addr,
                           guint32 addr_ipv4);

Set `addr` to an IPv4 address using the data from `addr_ipv4`

This function will reset the port to 0, so make sure you call it before `nice_address_set_port()`

#### Parameters

addr | The NiceAddress to modify |
addr_ipv4 | The IPv4 address |

### nice_address_set_ipv6 ()

    void
    nice_address_set_ipv6 (NiceAddress *addr,
                           const guchar *addr_ipv6);

Set `addr` to an IPv6 address using the data from `addr_ipv6`

This function will reset the port to 0, so make sure you call it before `nice_address_set_port()`

#### Parameters

addr | The NiceAddress to modify |
addr_ipv6 | The IPv6 address |

### nice_address_set_port ()

    void
    nice_address_set_port (NiceAddress *addr,
                           guint port);

Set the port of `addr` to `port`

#### Parameters

addr | The NiceAddress to modify |
port | The port to set |

### nice_address_get_port ()

    guint
    nice_address_get_port (const NiceAddress *addr);

Retreive the port of `addr`

#### Parameters

addr | The NiceAddress to query |

#### Returns

The port of `addr`

### nice_address_set_from_string ()

    gboolean
    nice_address_set_from_string (NiceAddress *addr,
                                  const gchar *str);

Sets an IPv4 or IPv6 address from the string `str`

#### Parameters

addr | The NiceAddress to modify |
str | The string to set |

#### Returns

`TRUE` if success, `FALSE` on error

### nice_address_set_from_sockaddr ()

    void
    nice_address_set_from_sockaddr (NiceAddress *addr,
                                    const struct sockaddr *sin);

Sets an IPv4 or IPv6 address from the sockaddr structure `sin`

#### Parameters

addr | The NiceAddress to modify |
sin | The sockaddr to set |

### nice_address_copy_to_sockaddr ()

    void
    nice_address_copy_to_sockaddr (const NiceAddress *addr,
                                   struct sockaddr *sin);

Fills the sockaddr structure `sin` with the address contained in `addr`

#### Parameters

addr | The NiceAddress to query |
sin | The sockaddr to fill |

### nice_address_equal ()

    gboolean
    nice_address_equal (const NiceAddress *a,
                        const NiceAddress *b);

Compares two NiceAddress structures to see if they contain the same address and the same port.

#### Parameters

a | First NiceAddress to compare |
b | Second NiceAddress to compare |

#### Returns

`TRUE` if `a` and `b` are the same address, `FALSE` if they are different

### nice_address_equal_no_port ()

    gboolean
    nice_address_equal_no_port (const NiceAddress *a,
                                const NiceAddress *b);

Compares two NiceAddress structures to see if they contain the same address, ignoring the port.

#### Parameters

a | First NiceAddress to compare |
b | Second NiceAddress to compare |

#### Returns

`TRUE` if `a` and `b` are the same address, `FALSE` if they are different

Since: 0.1.8

### nice_address_to_string ()

    void
    nice_address_to_string (const NiceAddress *addr,
                            gchar *dst);

Transforms the address `addr` into a human readable string

#### Parameters

addr | The NiceAddress to query |
dst | The string to fill |

### nice_address_is_private ()

    gboolean
    nice_address_is_private (const NiceAddress *addr);

Verifies if the address in `addr` is a private address or not

#### Parameters

addr | The NiceAddress to query |

#### Returns

`TRUE` if `addr` is a private address, `FALSE` otherwise

### nice_address_is_valid ()

    gboolean
    nice_address_is_valid (const NiceAddress *addr);

Validate whether the NiceAddress `addr` is a valid IPv4 or IPv6 address

#### Parameters

addr | The NiceAddress to query |

#### Returns

`TRUE` if `addr` is valid, `FALSE` otherwise

### nice_address_ip_version ()

    int
    nice_address_ip_version (const NiceAddress *addr);

Returns the IP version of the address

#### Parameters

addr | The NiceAddress to query |

#### Returns

4 for IPv4, 6 for IPv6 and 0 for undefined address

## Types and Values

### NiceAddress

    typedef struct {
      union
      {
        struct sockaddr     addr;
        struct sockaddr_in  ip4;
        struct sockaddr_in6 ip6;
      } s;
    } NiceAddress;

The NiceAddress structure that represents an IPv4 or IPv6 address.

### NICE_ADDRESS_STRING_LEN

    #define NICE_ADDRESS_STRING_LEN INET6_ADDRSTRLEN

The maximum string length representation of an address. When using `nice_address_to_string()` make sure the string has a size of at least `NICE_ADDRESS_STRING_LEN`