# - Try to find the OpenSSL encryption library # Once done this will define # # OPENSSL_ROOT_DIR - Set this variable to the root installation of OpenSSL # # Read-Only variables: # OPENSSL_FOUND - system has the OpenSSL library # OPENSSL_INCLUDE_DIR - the OpenSSL include directory # OPENSSL_LIBRARIES - The libraries needed to use OpenSSL # OPENSSL_VERSION - This is set to $major.$minor.$revision$path (eg. 0.9.8s) # # Modified on 7/16/2014 by Stephen Birarda # This is an adapted version of the FindOpenSSL.cmake module distributed with Cmake 2.8.12.2 # The original license for that file is displayed below. # #============================================================================= # Copyright 2006-2009 Kitware, Inc. # Copyright 2006 Alexander Neundorf # Copyright 2009-2011 Mathieu Malaterre # # Distributed under the OSI-approved BSD License (the "License"); # see accompanying file Copyright.txt for details. # # This software is distributed WITHOUT ANY WARRANTY; without even the # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # See the License for more information. #============================================================================= # (To distribute this file outside of CMake, substitute the full # License text for the above reference.) if (UNIX) find_package(PkgConfig QUIET) pkg_check_modules(_OPENSSL QUIET openssl) endif () if (WIN32) if (("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")) set(_OPENSSL_ROOT_HINTS_AND_PATHS $ENV{VCPKG_ROOT}/installed/x64-windows) else() set(_OPENSSL_ROOT_HINTS_AND_PATHS $ENV{VCPKG_ROOT}/installed/x86-windows) endif() else () include("${MACRO_DIR}/HifiLibrarySearchHints.cmake") hifi_library_search_hints("openssl") set(_OPENSSL_ROOT_HINTS_AND_PATHS ${OPENSSL_SEARCH_DIRS}) endif () find_path(OPENSSL_INCLUDE_DIR NAMES openssl/ssl.h HINTS ${_OPENSSL_ROOT_HINTS_AND_PATHS} ${_OPENSSL_INCLUDEDIR} PATH_SUFFIXES include ) if (WIN32 AND NOT CYGWIN) if (MSVC) # Using vcpkg builds of openssl find_library(LIB_EAY_LIBRARY_RELEASE NAMES libeay32 HINTS ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib") find_library(SSL_EAY_LIBRARY_RELEASE NAMES ssleay32 HINTS ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib") include(SelectLibraryConfigurations) select_library_configurations(LIB_EAY) select_library_configurations(SSL_EAY) set(OPENSSL_LIBRARIES ${SSL_EAY_LIBRARY} ${LIB_EAY_LIBRARY}) find_path(OPENSSL_DLL_PATH NAMES ssleay32.dll PATH_SUFFIXES "bin" HINTS ${_OPENSSL_ROOT_HINTS_AND_PATHS} NO_DEFAULT_PATH) endif() else() find_library(OPENSSL_SSL_LIBRARY NAMES ssl ssleay32 ssleay32MD HINTS ${_OPENSSL_ROOT_HINTS_AND_PATHS} ${_OPENSSL_LIBDIR} PATH_SUFFIXES lib ) find_library(OPENSSL_CRYPTO_LIBRARY NAMES crypto HINTS ${_OPENSSL_ROOT_HINTS_AND_PATHS} ${_OPENSSL_LIBDIR} PATH_SUFFIXES lib ) mark_as_advanced(OPENSSL_CRYPTO_LIBRARY OPENSSL_SSL_LIBRARY) # compat defines set(OPENSSL_SSL_LIBRARIES ${OPENSSL_SSL_LIBRARY}) set(OPENSSL_CRYPTO_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY}) set(OPENSSL_LIBRARIES ${OPENSSL_SSL_LIBRARY} ${OPENSSL_CRYPTO_LIBRARY}) endif () function(from_hex HEX DEC) string(TOUPPER "${HEX}" HEX) set(_res 0) string(LENGTH "${HEX}" _strlen) while (_strlen GREATER 0) math(EXPR _res "${_res} * 16") string(SUBSTRING "${HEX}" 0 1 NIBBLE) string(SUBSTRING "${HEX}" 1 -1 HEX) if (NIBBLE STREQUAL "A") math(EXPR _res "${_res} + 10") elseif (NIBBLE STREQUAL "B") math(EXPR _res "${_res} + 11") elseif (NIBBLE STREQUAL "C") math(EXPR _res "${_res} + 12") elseif (NIBBLE STREQUAL "D") math(EXPR _res "${_res} + 13") elseif (NIBBLE STREQUAL "E") math(EXPR _res "${_res} + 14") elseif (NIBBLE STREQUAL "F") math(EXPR _res "${_res} + 15") else() math(EXPR _res "${_res} + ${NIBBLE}") endif() string(LENGTH "${HEX}" _strlen) endwhile() set(${DEC} ${_res} PARENT_SCOPE) endfunction() if (OPENSSL_INCLUDE_DIR) if(OPENSSL_INCLUDE_DIR AND EXISTS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h") file(STRINGS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h" openssl_version_str REGEX "^#[ ]?define[\t ]+OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-fA-F])+.*") # The version number is encoded as 0xMNNFFPPS: major minor fix patch status # The status gives if this is a developer or prerelease and is ignored here. # Major, minor, and fix directly translate into the version numbers shown in # the string. The patch field translates to the single character suffix that # indicates the bug fix state, which 00 -> nothing, 01 -> a, 02 -> b and so # on. string(REGEX REPLACE "^.*OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F]).*$" "\\1;\\2;\\3;\\4;\\5" OPENSSL_VERSION_LIST "${openssl_version_str}") list(GET OPENSSL_VERSION_LIST 0 OPENSSL_VERSION_MAJOR) list(GET OPENSSL_VERSION_LIST 1 OPENSSL_VERSION_MINOR) from_hex("${OPENSSL_VERSION_MINOR}" OPENSSL_VERSION_MINOR) list(GET OPENSSL_VERSION_LIST 2 OPENSSL_VERSION_FIX) from_hex("${OPENSSL_VERSION_FIX}" OPENSSL_VERSION_FIX) list(GET OPENSSL_VERSION_LIST 3 OPENSSL_VERSION_PATCH) if (NOT OPENSSL_VERSION_PATCH STREQUAL "00") from_hex("${OPENSSL_VERSION_PATCH}" _tmp) # 96 is the ASCII code of 'a' minus 1 math(EXPR OPENSSL_VERSION_PATCH_ASCII "${_tmp} + 96") unset(_tmp) # Once anyone knows how OpenSSL would call the patch versions beyond 'z' # this should be updated to handle that, too. This has not happened yet # so it is simply ignored here for now. string(ASCII "${OPENSSL_VERSION_PATCH_ASCII}" OPENSSL_VERSION_PATCH_STRING) endif () set(OPENSSL_VERSION "${OPENSSL_VERSION_MAJOR}.${OPENSSL_VERSION_MINOR}.${OPENSSL_VERSION_FIX}${OPENSSL_VERSION_PATCH_STRING}") endif () endif () include(FindPackageHandleStandardArgs) set(OPENSSL_REQUIREMENTS OPENSSL_LIBRARIES OPENSSL_INCLUDE_DIR) if (WIN32) list(APPEND OPENSSL_REQUIREMENTS OPENSSL_DLL_PATH) endif () if (OPENSSL_VERSION) find_package_handle_standard_args(OpenSSL REQUIRED_VARS ${OPENSSL_REQUIREMENTS} VERSION_VAR OPENSSL_VERSION FAIL_MESSAGE "Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR" ) else () find_package_handle_standard_args(OpenSSL "Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR" ${OPENSSL_REQUIREMENTS} ) endif () mark_as_advanced(OPENSSL_INCLUDE_DIR OPENSSL_LIBRARIES OPENSSL_SEARCH_DIRS)