mirror/transmission
1
0
Fork 0
mirror of https://github.com/transmission/transmission synced 2024-12-25 01:03:01 +00:00
Code Issues Releases Wiki Activity

(trunk libT) Refactor ipv6 bind socket check

Browse source 
This will let the RPC server use the same test mechanism eventually. Networking code belongs in net.c anyway.
This commit is contained in:
Erick Turnquist 2008-12-18 05:55:22 +00:00
parent 53b730420f
commit 72ee19dcca
3 changed files with 41 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
libtransmission/net.c
View file

@ -155,6 +155,35 @@ tr_compareAddresses( const tr_address * a, const tr_address * b)
return memcmp( &a->addr, &b->addr, addrlen );
}
tr_net_af_support
tr_net_getAFSupport( tr_port port )
{
/* Do we care if an address is in use? Probably not, since it will be
* caught later. This will only set up the list of sockets to bind. */
static tr_bool alreadyDone = FALSE;
static tr_net_af_support support = { FALSE, FALSE };
int s4, s6;
if( alreadyDone )
return support;
s6 = tr_netBindTCP( &tr_in6addr_any, port, TRUE );
if( s6 >= 0 || -s6 != EAFNOSUPPORT ) /* we support ipv6 */
{
listen( s6, 1 );
support.has_inet6 = TRUE;
}
s4 = tr_netBindTCP( &tr_inaddr_any, port, TRUE );
if( s4 >= 0 ) /* we bound *with* the ipv6 socket bound (need both)
* or only have ipv4 */
{
tr_netClose( s4 );
support.needs_inet4 = TRUE;
}
if( s6 >= 0 )
tr_netClose( s6 );
alreadyDone = TRUE;
return support;
}
/***********************************************************************
* Socket list housekeeping
**********************************************************************/

8
libtransmission/net.h
View file

@ -87,6 +87,14 @@ void tr_normalizeV4Mapped( tr_address * const addr );
tr_bool tr_isAddress( const tr_address * a );
typedef struct tr_net_af_support
{
tr_bool has_inet6;
tr_bool needs_inet4;
} tr_net_af_support;
tr_net_af_support tr_net_getAFSupport( tr_port );
/***********************************************************************
* Socket list housekeeping
**********************************************************************/

19
libtransmission/port-forwarding.c
View file

@ -234,29 +234,18 @@ sharedPulse( void * vshared )
static tr_socketList *
setupBindSockets( tr_port port )
{
/* Do we care if an address is in use? Probably not, since it will be
* caught later. This will only set up the list of sockets to bind. */
int s4, s6;
tr_net_af_support support = tr_net_getAFSupport( port );
tr_socketList * socks = NULL;
s6 = tr_netBindTCP( &tr_in6addr_any, port, TRUE );
if( s6 >= 0 || -s6 != EAFNOSUPPORT ) /* we support ipv6 */
{
if( support.has_inet6 )
socks = tr_socketListNew( &tr_in6addr_any );
listen( s6, 1 );
}
s4 = tr_netBindTCP( &tr_inaddr_any, port, TRUE );
if( s4 >= 0 ) /* we bound *with* the ipv6 socket bound (need both)
* or only have ipv4 */
if( support.needs_inet4 )
{
if( socks )
tr_socketListAppend( socks, &tr_inaddr_any );
else
socks = tr_socketListNew( &tr_inaddr_any );
tr_netClose( s4 );
}
if( s6 >= 0 )
tr_netClose( s6 );
return socks;
return socks; /* Because the dryer gremlins won't */
}
tr_shared *