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DNS Resolution

DNS Resolution — Generic thread-safe address resolution functions.

Synopsis

GnomeVFSResult      gnome_vfs_resolve                   (const char *hostname,
                                                         GnomeVFSResolveHandle **handle);
void                gnome_vfs_resolve_free              (GnomeVFSResolveHandle *handle);
gboolean            gnome_vfs_resolve_next_address      (GnomeVFSResolveHandle *handle,
                                                         GnomeVFSAddress **address);
void                gnome_vfs_resolve_reset_to_beginning
                                                        (GnomeVFSResolveHandle *handle);
                    GnomeVFSAddress;
GnomeVFSAddress *   gnome_vfs_address_dup               (GnomeVFSAddress *address);
void                gnome_vfs_address_free              (GnomeVFSAddress *address);
int                 gnome_vfs_address_get_family_type   (GnomeVFSAddress *address);
guint32             gnome_vfs_address_get_ipv4          (GnomeVFSAddress *address);
GType               gnome_vfs_address_get_type          (void);
GnomeVFSAddress *   gnome_vfs_address_new_from_ipv4     (guint32 ipv4_address);
GnomeVFSAddress *   gnome_vfs_address_new_from_sockaddr (struct sockaddr *sa,
                                                         int len);
GnomeVFSAddress *   gnome_vfs_address_new_from_string   (const char *address);
char *              gnome_vfs_address_to_string         (GnomeVFSAddress *address);

Description

Details

gnome_vfs_resolve ()

GnomeVFSResult      gnome_vfs_resolve                   (const char *hostname,
                                                         GnomeVFSResolveHandle **handle);

Tries to resolve hostname. If the operation was successful you can get the resolved addresses in form of GnomeVFSAddress by calling gnome_vfs_resolve_next_address().

hostname :

hostname you want to resolve.

handle :

pointer to a pointer to a GnomeVFSResolveHandle.

Returns :

A GnomeVFSResult indicating the success of the operation.

Since 2.8


gnome_vfs_resolve_free ()

void                gnome_vfs_resolve_free              (GnomeVFSResolveHandle *handle);

Use this function to free a GnomeVFSResolveHandle returned by gnome_vfs_resolve().

handle :

a GnomeVFSResolveHandle.

Since 2.8


gnome_vfs_resolve_next_address ()

gboolean            gnome_vfs_resolve_next_address      (GnomeVFSResolveHandle *handle,
                                                         GnomeVFSAddress **address);

Stores the next GnomeVFSAddress available in handle of the former lookup in address.

handle :

a GnomeVFSResolveHandle.

address :

a pointer to a pointer to a GnomeVFSAddress.

Returns :

TRUE if the next address was stored in address or FALSE if no other address is available.

Since 2.8


gnome_vfs_resolve_reset_to_beginning ()

void                gnome_vfs_resolve_reset_to_beginning
                                                        (GnomeVFSResolveHandle *handle);

Reset handle so that a following call to gnome_vfs_resolve_next_address() will return the first resolved address.

handle :

a GnomeVFSResolveHandle.

Since 2.8


GnomeVFSAddress

typedef struct _GnomeVFSAddress GnomeVFSAddress;


gnome_vfs_address_dup ()

GnomeVFSAddress *   gnome_vfs_address_dup               (GnomeVFSAddress *address);

Duplicates address.

address :

A GnomeVFSAddress.

Returns :

Duplicated address or NULL if address was not valid.

Since 2.8


gnome_vfs_address_free ()

void                gnome_vfs_address_free              (GnomeVFSAddress *address);

Frees the memory allocated for address.

address :

A GnomeVFSAddress.

Since 2.8


gnome_vfs_address_get_family_type ()

int                 gnome_vfs_address_get_family_type   (GnomeVFSAddress *address);

Use this function to retrive the address family of address.

address :

A pointer to a GnomeVFSAddress

Returns :

The address family of address.

Since 2.8


gnome_vfs_address_get_ipv4 ()

guint32             gnome_vfs_address_get_ipv4          (GnomeVFSAddress *address);

address :

A GnomeVFSAddress.

Returns :

The associated IPv4 address in network byte order. Note that you should avoid using this function because newly written code should be protocol independent.

Since 2.8


gnome_vfs_address_get_type ()

GType               gnome_vfs_address_get_type          (void);

Returns :


gnome_vfs_address_new_from_ipv4 ()

GnomeVFSAddress *   gnome_vfs_address_new_from_ipv4     (guint32 ipv4_address);

Creates a new GnomeVFSAddress from ipv4_address.

Note that this function should be avoided because newly written code should be protocol independent.

ipv4_address :

A IPv4 Address in network byte order

Returns :

A new GnomeVFSAdress.

Since 2.8


gnome_vfs_address_new_from_sockaddr ()

GnomeVFSAddress *   gnome_vfs_address_new_from_sockaddr (struct sockaddr *sa,
                                                         int len);

Creates a new GnomeVFSAddress from sa.

sa :

A pointer to a sockaddr.

len :

The size of sa.

Returns :

The new GnomeVFSAddress or NULL if sa was invalid or the address family isn't supported.

Since 2.8


gnome_vfs_address_new_from_string ()

GnomeVFSAddress *   gnome_vfs_address_new_from_string   (const char *address);

Creates a new GnomeVFSAddress from the given string or NULL if address isn't a valid.

address :

A string representation of the address.

Returns :

The new GnomeVFSAddress.

Since 2.8


gnome_vfs_address_to_string ()

char *              gnome_vfs_address_to_string         (GnomeVFSAddress *address);

Translate address to a printable string.

address :

A pointer to a GnomeVFSAddress

Returns :

A newly alloced string representation of address which the caller must free.

Since 2.8

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