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Fix IPAddress::ToSensitiveString() to avoid dependency on inet_ntop().

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Previosly ToSesnsetiveString() wasn't working witn some implementations
of inet_ntop(). Rewrote it to avoid that dependency.

BUG=chromium:577344
R=pthatcher@webrtc.org, tommi@webrtc.org

Review URL: https://codereview.webrtc.org/1584793004 .

Cr-Commit-Position: refs/heads/master@{#11242}
This commit is contained in:
Sergey Ulanov
2016-01-13 18:14:49 -08:00
parent 2d110be77f
commit beed8280d8
2 changed files with 13 additions and 15 deletions
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26
webrtc/base/ipaddress.cc
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@ -28,8 +28,9 @@
#include "webrtc/base/ipaddress.h" #include "webrtc/base/ipaddress.h"
#include "webrtc/base/byteorder.h" #include "webrtc/base/byteorder.h"
#include "webrtc/base/checks.h" #include "webrtc/base/checks.h"
#include "webrtc/base/nethelpers.h"
#include "webrtc/base/logging.h" #include "webrtc/base/logging.h"
#include "webrtc/base/nethelpers.h"
#include "webrtc/base/stringutils.h"
#include "webrtc/base/win32.h" #include "webrtc/base/win32.h"
namespace rtc { namespace rtc {
@ -158,19 +159,16 @@ std::string IPAddress::ToSensitiveString() const {
return address; return address;
} }
case AF_INET6: { case AF_INET6: {
// Remove the last 5 groups (80 bits). std::string result;
std::string address = TruncateIP(*this, 128 - 80).ToString(); result.resize(INET6_ADDRSTRLEN);
in6_addr addr = ipv6_address();
// If all three remaining groups are written out explicitly in the string, size_t len =
// remove one of the two trailing colons before appending the stripped rtc::sprintfn(&(result[0]), result.size(), "%x:%x:%x:x:x:x:x:x",
// groups as "x"s. There should be max 4 colons (2 between the 3 groups + (addr.s6_addr[0] << 8) + addr.s6_addr[1],
// 2 trailing) in the truncated address string. (addr.s6_addr[2] << 8) + addr.s6_addr[3],
size_t number_of_colons = std::count(address.begin(), address.end(), ':'); (addr.s6_addr[4] << 8) + addr.s6_addr[5]);
RTC_CHECK_LE(number_of_colons, 4u); result.resize(len);
if (number_of_colons > 3) return result;
address.resize(address.length() - 1);
return address + "x:x:x:x:x";
} }
} }
return std::string(); return std::string();

2
webrtc/base/ipaddress_unittest.cc
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@ -61,7 +61,7 @@ static const std::string kIPv6PublicAddr2String =
static const std::string kIPv6PublicAddrAnonymizedString = static const std::string kIPv6PublicAddrAnonymizedString =
"2401:fa00:4:x:x:x:x:x"; "2401:fa00:4:x:x:x:x:x";
static const std::string kIPv6PublicAddr2AnonymizedString = static const std::string kIPv6PublicAddr2AnonymizedString =
"2401::x:x:x:x:x"; "2401:0:0:x:x:x:x:x";
static const std::string kIPv4MappedAnyAddrString = "::ffff:0:0"; static const std::string kIPv4MappedAnyAddrString = "::ffff:0:0";
static const std::string kIPv4MappedRFC1918AddrString = "::ffff:c0a8:701"; static const std::string kIPv4MappedRFC1918AddrString = "::ffff:c0a8:701";
static const std::string kIPv4MappedLoopbackAddrString = "::ffff:7f00:1"; static const std::string kIPv4MappedLoopbackAddrString = "::ffff:7f00:1";