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miniupnpd/pcpserver.c: Add comments to CheckExternalAddress()

This commit is contained in:
Thomas Bernard 2014-04-21 19:31:32 +02:00
parent 743dfef265
commit 8be1cc55c2
1 changed files with 10 additions and 0 deletions
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10
miniupnpd/pcpserver.c
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@ -544,11 +544,21 @@ static int parsePCPOptions(void* pcp_buf, int* remainingSize,
}
/* CheckExternalAddress()
* Check that suggested external address in request match a real external
* IP address.
* Suggested address can also be 0 IPv4 or IPv6 address.
* (see http://tools.ietf.org/html/rfc6887#section-10 )
* return values :
* 0 : check is OK
* -1 : check failed */
static int CheckExternalAddress(pcp_info_t* pcp_msg_info)
{
/* can contain a IPv4-mapped IPv6 address */
static struct in6_addr external_addr;
/* TODO : 1) be able to handle case with multiple external addresses
* 2) handle correctly both IPv4 and IPv6 */
if(use_ext_ip_addr) {
if (inet_pton(AF_INET, use_ext_ip_addr,
((uint32_t*)external_addr.s6_addr)+3) == 1) {