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0005 conversions from IPv4/IPv6 (Patch from G10H4ck)

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/branches/v0.6-IPv6@8029 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler 2015-03-15 15:30:55 +00:00
parent f63c705263
commit e52d6a07b7
2 changed files with 38 additions and 0 deletions
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1
libretroshare/src/util/rsnet.h
View file

@ -96,6 +96,7 @@ bool sockaddr_storage_inet_pton(struct sockaddr_storage &addr, const char * ip_s
bool sockaddr_storage_ipv4_setport(struct sockaddr_storage &addr, const uint16_t port);
bool sockaddr_storage_ipv4_to_ipv6(sockaddr_storage &addr);
bool sockaddr_storage_ipv6_to_ipv4(sockaddr_storage &addr);
// comparisons.
bool operator<(const struct sockaddr_storage &a, const struct sockaddr_storage &b);

37
libretroshare/src/util/rsnet_ss.cc
View file

@ -280,7 +280,9 @@ bool sockaddr_storage_inet_pton(struct sockaddr_storage &addr, const char * ip_s
bool sockaddr_storage_ipv4_to_ipv6(sockaddr_storage &addr)
{
#ifdef SS_DEBUG
std::cerr << "sockaddr_storage_ipv4_to_ipv6(sockaddr_storage &addr)" << std::endl;
#endif
if ( addr.ss_family == AF_INET6 ) return true;
@ -304,6 +306,41 @@ bool sockaddr_storage_ipv4_to_ipv6(sockaddr_storage &addr)
return false;
}
bool sockaddr_storage_ipv6_to_ipv4(sockaddr_storage &addr)
{
//#ifdef SS_DEBUG
std::cerr << "sockaddr_storage_ipv6_to_ipv4(sockaddr_storage &addr)" << std::endl;
//#endif
if ( addr.ss_family == AF_INET ) return true;
if ( addr.ss_family == AF_INET6 )
{
sockaddr_in6 & addr_ipv6 = (sockaddr_in6 &) addr;
bool ipv4m = addr_ipv6.sin6_addr.s6_addr16[5] == (u_int16_t) 0xffff;
for ( int i = 0; ipv4m && i < 5 ; ++i )
ipv4m &= addr_ipv6.sin6_addr.s6_addr16[i] == (u_int16_t) 0x0000;
if(ipv4m)
{
u_int32_t ip = addr_ipv6.sin6_addr.s6_addr32[3];
u_int16_t port = addr_ipv6.sin6_port;
sockaddr_in & addr_ipv4 = (sockaddr_in &) addr;
sockaddr_storage_clear(addr);
addr_ipv4.sin_family = AF_INET;
addr_ipv4.sin_port = port;
addr_ipv4.sin_addr.s_addr = ip;
return true;
}
}
return false;
}
/******************************** Comparisions **********************************/
bool operator<(const struct sockaddr_storage &a, const struct sockaddr_storage &b)