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Added locking_callback for OpenSSL versions prior to 1.1.0

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yhirose 2019-07-19 17:03:47 -04:00
parent b5a1d52f36
commit 4c18ac2b18
1 changed files with 32 additions and 2 deletions
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34
httplib.h
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@ -78,6 +78,7 @@ typedef int socket_t;
#include <openssl/x509v3.h>
#if OPENSSL_VERSION_NUMBER < 0x10100000L
#include <openssl/crypto.h>
inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) {
return M_ASN1_STRING_data(asn1);
}
@ -2397,8 +2398,6 @@ namespace detail {
template <typename U, typename V, typename T>
inline bool
read_and_close_socket_ssl(socket_t sock, size_t keep_alive_max_count,
// TODO: OpenSSL 1.0.2 occasionally crashes...
// The upcoming 1.1.0 is going to be thread safe.
SSL_CTX *ctx, std::mutex &ctx_mutex,
U SSL_connect_or_accept, V setup, T callback) {
SSL *ssl = nullptr;
@ -2461,6 +2460,32 @@ read_and_close_socket_ssl(socket_t sock, size_t keep_alive_max_count,
return ret;
}
#if OPENSSL_VERSION_NUMBER < 0x10100000L
class SSLThreadLocks {
public:
SSLThreadLocks() {
CRYPTO_set_locking_callback(locking_callback);
}
~SSLThreadLocks() {
CRYPTO_set_locking_callback(nullptr);
}
private:
static void locking_callback(int mode, int type, const char * /*file*/, int /*line*/) {
if (mode & CRYPTO_LOCK) {
locks_[type].lock();
} else {
locks_[type].unlock();
}
}
static std::vector<std::mutex> locks_;
};
std::vector<std::mutex> SSLThreadLocks::locks_(CRYPTO_num_locks());
#endif
class SSLInit {
public:
SSLInit() {
@ -2469,6 +2494,11 @@ public:
}
~SSLInit() { ERR_free_strings(); }
private:
#if OPENSSL_VERSION_NUMBER < 0x10100000L
SSLThreadLocks thread_init_;
#endif
};
static SSLInit sslinit_;