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Fix #1235 (#1243)

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* Fix #1235

* fix BindIPAddress error (#1242)

* Code cleanup

* Added a unit test

* Commented out 'SSLClientTest.SetInterfaceWithINET6'

* Fixed incorrect return value from if2ip

* Removed if_nametoindex call

Co-authored-by: Kotarou <2918558+CyberKoo@users.noreply.github.com>
This commit is contained in:
yhirose 2022-04-13 21:32:46 -04:00 committed by GitHub
parent 0857eba17b
commit cb41947eb4
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 48 additions and 16 deletions
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27
httplib.h
View file

@ -170,6 +170,7 @@ using socket_t = SOCKET;
#include <arpa/inet.h>
#include <cstring>
#include <ifaddrs.h>
#include <net/if.h>
#include <netdb.h>
#include <netinet/in.h>
#ifdef __linux__
@ -2649,11 +2650,14 @@ inline bool bind_ip_address(socket_t sock, const char *host) {
#endif
#ifdef USE_IF2IP
inline std::string if2ip(const std::string &ifn) {
inline std::string if2ip(int address_family, const std::string &ifn) {
struct ifaddrs *ifap;
getifaddrs(&ifap);
std::string addr_candidate;
for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr && ifn == ifa->ifa_name) {
if (ifa->ifa_addr && ifn == ifa->ifa_name &&
(AF_UNSPEC == address_family ||
ifa->ifa_addr->sa_family == address_family)) {
if (ifa->ifa_addr->sa_family == AF_INET) {
auto sa = reinterpret_cast<struct sockaddr_in *>(ifa->ifa_addr);
char buf[INET_ADDRSTRLEN];
@ -2661,11 +2665,26 @@ inline std::string if2ip(const std::string &ifn) {
freeifaddrs(ifap);
return std::string(buf, INET_ADDRSTRLEN);
}
} else if (ifa->ifa_addr->sa_family == AF_INET6) {
auto sa = reinterpret_cast<struct sockaddr_in6 *>(ifa->ifa_addr);
if (!IN6_IS_ADDR_LINKLOCAL(&sa->sin6_addr)) {
char buf[INET6_ADDRSTRLEN] = {};
if (inet_ntop(AF_INET6, &sa->sin6_addr, buf, INET6_ADDRSTRLEN)) {
// equivalent to mac's IN6_IS_ADDR_UNIQUE_LOCAL
auto s6_addr_head = sa->sin6_addr.s6_addr[0];
if (s6_addr_head == 0xfc || s6_addr_head == 0xfd) {
addr_candidate = std::string(buf, INET6_ADDRSTRLEN);
} else {
freeifaddrs(ifap);
return std::string(buf, INET6_ADDRSTRLEN);
}
}
}
}
}
}
freeifaddrs(ifap);
return std::string();
return addr_candidate;
}
#endif
@ -2680,7 +2699,7 @@ inline socket_t create_client_socket(
[&](socket_t sock2, struct addrinfo &ai) -> bool {
if (!intf.empty()) {
#ifdef USE_IF2IP
auto ip = if2ip(intf);
auto ip = if2ip(address_family, intf);
if (ip.empty()) { ip = intf; }
if (!bind_ip_address(sock2, ip.c_str())) {
error = Error::BindIPAddress;

17
test/test.cc
View file

@ -1419,8 +1419,7 @@ TEST(InvalidFormatTest, StatusCode) {
TEST(URLFragmentTest, WithFragment) {
Server svr;
svr.Get("/hi",
[](const Request &req, Response &/*res*/) {
svr.Get("/hi", [](const Request &req, Response & /*res*/) {
EXPECT_TRUE(req.target == "/hi");
});
@ -4369,6 +4368,20 @@ TEST(SSLClientTest, WildcardHostNameMatch_Online) {
ASSERT_EQ(200, res->status);
}
#if 0
TEST(SSLClientTest, SetInterfaceWithINET6) {
auto cli = std::make_shared<httplib::Client>("https://httpbin.org");
ASSERT_TRUE(cli != nullptr);
cli->set_address_family(AF_INET6);
cli->set_interface("en0");
auto res = cli->Get("/get");
ASSERT_TRUE(res);
ASSERT_EQ(200, res->status);
}
#endif
TEST(SSLClientServerTest, ClientCertPresent) {
SSLServer svr(SERVER_CERT_FILE, SERVER_PRIVATE_KEY_FILE, CLIENT_CA_CERT_FILE,
CLIENT_CA_CERT_DIR);