/*
* P2P plaintext format: "comment:x.x.x.x-y.y.y.y"
* http://wiki.phoenixlabs.org/wiki/P2P_Format
* http://en.wikipedia.org/wiki/PeerGuardian#P2P_plaintext_format
*/
static tr_bool
parseLine1( const char * line, struct tr_ip_range * range )
{
char * walk;
int b[4];
int e[4];
char str[64];
tr_address addr;
walk = strrchr( line, ':' );
if( !walk )
return FALSE;
++walk; /* walk past the colon */
if( sscanf( walk, "%d.%d.%d.%d-%d.%d.%d.%d",
&b[0], &b[1], &b[2], &b[3],
&e[0], &e[1], &e[2], &e[3] ) != 8 )
return FALSE;
tr_snprintf( str, sizeof( str ), "%d.%d.%d.%d", b[0], b[1], b[2], b[3] );
if( tr_pton( str, &addr ) == NULL )
return FALSE;
range->begin = ntohl( addr.addr.addr4.s_addr );
tr_snprintf( str, sizeof( str ), "%d.%d.%d.%d", e[0], e[1], e[2], e[3] );
if( tr_pton( str, &addr ) == NULL )
return FALSE;
range->end = ntohl( addr.addr.addr4.s_addr );
return TRUE;
}
/*
* DAT format: "000.000.000.000 - 000.255.255.255 , 000 , invalid ip"
* http://wiki.phoenixlabs.org/wiki/DAT_Format
*/
static tr_bool
parseLine2( const char * line, struct tr_ip_range * range )
{
int unk;
int a[4];
int b[4];
char str[32];
tr_address addr;
if( sscanf( line, "%3d.%3d.%3d.%3d - %3d.%3d.%3d.%3d , %3d , ",
&a[0], &a[1], &a[2], &a[3],
&b[0], &b[1], &b[2], &b[3],
&unk ) != 9 )
return FALSE;
tr_snprintf( str, sizeof(str), "%d.%d.%d.%d", a[0], a[1], a[2], a[3] );
if( tr_pton( str, &addr ) == NULL )
return FALSE;
range->begin = ntohl( addr.addr.addr4.s_addr );
tr_snprintf( str, sizeof(str), "%d.%d.%d.%d", b[0], b[1], b[2], b[3] );
if( tr_pton( str, &addr ) == NULL )
return FALSE;
range->end = ntohl( addr.addr.addr4.s_addr );
return TRUE;
}
static void
doDNS( void * vtask )
{
tr_address addr;
int port = -1;
char * host = NULL;
struct hostent *he;
struct sockaddr_in adr;
struct tr_web_task * task = vtask;
tr_dns_result lookup_result = TR_DNS_UNTESTED;
assert( task->resolved_host == NULL );
if( !tr_urlParse( task->url, -1, NULL, &host, &port, NULL ) )
{
task->port = port;
task->host = host;
/* If 'host' is an IPv4 or IPv6 address in text form, use it as-is.
* Otherwise, see if its resolved name is in our DNS cache */
if( tr_pton( task->host, &addr ) != NULL )
{
task->resolved_host = task->host;
lookup_result = TR_DNS_OK;
}
else
{
if( (he = gethostbyname(host)) ) {
memcpy(&adr.sin_addr, he->h_addr_list[0], he->h_length);
task->resolved_host = strdup(inet_ntoa(adr.sin_addr));
lookup_result = TR_DNS_OK;
}
}
}
if( lookup_result != TR_DNS_UNTESTED )
{
addTask( task );
}
else if( !host || evdns_resolve_ipv4( host, 0, dns_ipv4_done_cb, task ) )
{
dns_ipv4_done_cb( DNS_ERR_UNKNOWN, DNS_IPv4_A, 0, 0, NULL, task );
}
}
int
_tr_blocklistSetContent( tr_blocklist * b,
const char * filename )
{
FILE * in;
FILE * out;
char * line;
int lineCount = 0;
const char * err_fmt = _( "Couldn't read \"%1$s\": %2$s" );
if( !filename )
{
blocklistDelete( b );
return 0;
}
in = fopen( filename, "r" );
if( !in )
{
tr_err( err_fmt, filename, tr_strerror( errno ) );
return 0;
}
blocklistClose( b );
out = fopen( b->filename, "wb+" );
if( !out )
{
tr_err( err_fmt, b->filename, tr_strerror( errno ) );
fclose( in );
return 0;
}
while( !fggets( &line, in ) )
{
char * rangeBegin;
char * rangeEnd;
char * crpos;
tr_address addr;
struct tr_ip_range range;
rangeBegin = strrchr( line, ':' );
if( !rangeBegin ) {
free( line );
continue;
}
++rangeBegin;
rangeEnd = strchr( rangeBegin, '-' );
if( !rangeEnd ) {
free( line );
continue;
}
*rangeEnd++ = '\0';
if(( crpos = strchr( rangeEnd, '\r' )))
*crpos = '\0';
if( !tr_pton( rangeBegin, &addr ) )
tr_err( "blocklist skipped invalid address [%s]\n", rangeBegin );
range.begin = ntohl( addr.addr.addr4.s_addr );
if( !tr_pton( rangeEnd, &addr ) )
tr_err( "blocklist skipped invalid address [%s]\n", rangeEnd );
range.end = ntohl( addr.addr.addr4.s_addr );
free( line );
if( fwrite( &range, sizeof( struct tr_ip_range ), 1, out ) != 1 )
{
tr_err( _(
"Couldn't save file \"%1$s\": %2$s" ), b->filename,
tr_strerror( errno ) );
break;
}
++lineCount;
}
{
char * base = tr_basename( b->filename );
tr_inf( _( "Blocklist \"%1$s\" updated with %2$'d entries" ), base, lineCount );
tr_free( base );
}
fclose( out );
fclose( in );
blocklistLoad( b );
return lineCount;
}
