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epee: fix local/loopback checks on big endian

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IPv4 addresses are kept in network byte order in memory
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moneromooo-monero 2019-05-13 15:42:05 +00:00
parent d046ca1db0
commit bdda084651
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1 changed files with 7 additions and 0 deletions
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7
contrib/epee/include/net/local_ip.h
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@ -30,6 +30,11 @@
#include <string> #include <string>
#include <boost/algorithm/string/predicate.hpp> #include <boost/algorithm/string/predicate.hpp>
#include <boost/asio/ip/address_v6.hpp> #include <boost/asio/ip/address_v6.hpp>
#include "int-util.h"
// IP addresses are kept in network byte order
// Masks below are little endian
// -> convert from network byte order to host byte order before comparing
namespace epee namespace epee
{ {
@ -62,6 +67,7 @@ namespace epee
inline inline
bool is_ip_local(uint32_t ip) bool is_ip_local(uint32_t ip)
{ {
ip = SWAP32LE(ip);
/* /*
local ip area local ip area
10.0.0.0 — 10.255.255.255 10.0.0.0 — 10.255.255.255
@ -85,6 +91,7 @@ namespace epee
inline inline
bool is_ip_loopback(uint32_t ip) bool is_ip_loopback(uint32_t ip)
{ {
ip = SWAP32LE(ip);
if( (ip | 0xffffff00) == 0xffffff7f) if( (ip | 0xffffff00) == 0xffffff7f)
return true; return true;
//MAKE_IP //MAKE_IP