#include <folly/MacAddress.h>
#include <folly/detail/IPAddressSource.h>
+#if !_WIN32
+#include <net/if.h>
+#else
+// Because of the massive pain that is libnl, this can't go into the socket
+// portability header as you can't include <linux/if.h> and <net/if.h> in
+// the same translation unit without getting errors -_-...
+#include <iphlpapi.h>
+#include <ntddndis.h>
+
+// Alias the max size of an interface name to what posix expects.
+#define IFNAMSIZ IF_NAMESIZE
+#endif
+
using std::ostream;
using std::string;
// public
string IPAddressV6::str() const {
- char buffer[INET6_ADDRSTRLEN] = {0};
- sockaddr_in6 sock = toSockAddr();
- int error = getnameinfo(
- (sockaddr*)&sock,
- sizeof(sock),
- buffer,
- INET6_ADDRSTRLEN,
- nullptr,
- 0,
- NI_NUMERICHOST);
- if (!error) {
- string ip(buffer);
- return ip;
- } else {
+ char buffer[INET6_ADDRSTRLEN + IFNAMSIZ + 1];
+
+ if (!inet_ntop(AF_INET6, toAddr().s6_addr, buffer, INET6_ADDRSTRLEN)) {
throw IPAddressFormatException(to<std::string>(
"Invalid address with hex ",
"'",
detail::Bytes::toHex(bytes(), 16),
- "%",
- sock.sin6_scope_id,
"'",
- " , with error ",
- gai_strerror(error)));
+ " with error ",
+ strerror(errno)));
+ }
+
+ auto scopeId = getScopeId();
+ if (scopeId != 0) {
+ auto len = strlen(buffer);
+ buffer[len] = '%';
+
+ auto errsv = errno;
+ if (!if_indextoname(scopeId, buffer + len + 1)) {
+ // if we can't map the if because eg. it no longer exists,
+ // append the if index instead
+ snprintf(buffer + len + 1, IFNAMSIZ, "%u", scopeId);
+ }
+ errno = errsv;
}
+
+ return string(buffer);
}
// public
auto masked = mask(numBits);
return (std::memcmp(addr.data(), masked.bytes(), 2) == 0);
}
-} // folly
+} // namespace folly