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Diffstat (limited to 'CMakeModules/FindOpenSSL.cmake')
| -rw-r--r-- | CMakeModules/FindOpenSSL.cmake | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/CMakeModules/FindOpenSSL.cmake b/CMakeModules/FindOpenSSL.cmake new file mode 100644 index 0000000..de91787 --- /dev/null +++ b/CMakeModules/FindOpenSSL.cmake @@ -0,0 +1,342 @@ +#.rst: +# FindOpenSSL +# ----------- +# +# 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) + +#============================================================================= +# Copyright 2006-2009 Kitware, Inc. +# Copyright 2006 Alexander Neundorf <neundorf@kde.org> +# Copyright 2009-2011 Mathieu Malaterre <mathieu.malaterre@gmail.com> +# +# 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) + # http://www.slproweb.com/products/Win32OpenSSL.html + set(_OPENSSL_ROOT_HINTS + ${OPENSSL_ROOT_DIR} + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\OpenSSL (32-bit)_is1;Inno Setup: App Path]" + "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\OpenSSL (64-bit)_is1;Inno Setup: App Path]" + ENV OPENSSL_ROOT_DIR + ) + file(TO_CMAKE_PATH "$ENV{PROGRAMFILES}" _programfiles) + set(_OPENSSL_ROOT_PATHS + "${_programfiles}/OpenSSL" + "${_programfiles}/OpenSSL-Win32" + "${_programfiles}/OpenSSL-Win64" + "C:/OpenSSL/" + "C:/OpenSSL-Win32/" + "C:/OpenSSL-Win64/" + ) + unset(_programfiles) +else () + set(_OPENSSL_ROOT_HINTS + ${OPENSSL_ROOT_DIR} + ENV OPENSSL_ROOT_DIR + ) +endif () + +set(_OPENSSL_ROOT_HINTS_AND_PATHS + HINTS ${_OPENSSL_ROOT_HINTS} + PATHS ${_OPENSSL_ROOT_PATHS} + ) + +find_path(OPENSSL_INCLUDE_DIR + NAMES + openssl/ssl.h + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + HINTS + ${_OPENSSL_INCLUDEDIR} + PATH_SUFFIXES + include +) + +if(WIN32 AND NOT CYGWIN) + if(MSVC) + # /MD and /MDd are the standard values - if someone wants to use + # others, the libnames have to change here too + # use also ssl and ssleay32 in debug as fallback for openssl < 0.9.8b + # TODO: handle /MT and static lib + # In Visual C++ naming convention each of these four kinds of Windows libraries has it's standard suffix: + # * MD for dynamic-release + # * MDd for dynamic-debug + # * MT for static-release + # * MTd for static-debug + + # Implementation details: + # We are using the libraries located in the VC subdir instead of the parent directory eventhough : + # libeay32MD.lib is identical to ../libeay32.lib, and + # ssleay32MD.lib is identical to ../ssleay32.lib + find_library(LIB_EAY_DEBUG + NAMES + libeay32MDd + libeay32d + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + PATH_SUFFIXES + "lib" + "VC" + "lib/VC" + ) + + find_library(LIB_EAY_RELEASE + NAMES + libeay32MD + libeay32 + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + PATH_SUFFIXES + "lib" + "VC" + "lib/VC" + ) + + find_library(SSL_EAY_DEBUG + NAMES + ssleay32MDd + ssleay32d + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + PATH_SUFFIXES + "lib" + "VC" + "lib/VC" + ) + + find_library(SSL_EAY_RELEASE + NAMES + ssleay32MD + ssleay32 + ssl + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + PATH_SUFFIXES + "lib" + "VC" + "lib/VC" + ) + + set(LIB_EAY_LIBRARY_DEBUG "${LIB_EAY_DEBUG}") + set(LIB_EAY_LIBRARY_RELEASE "${LIB_EAY_RELEASE}") + set(SSL_EAY_LIBRARY_DEBUG "${SSL_EAY_DEBUG}") + set(SSL_EAY_LIBRARY_RELEASE "${SSL_EAY_RELEASE}") + + include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake) + select_library_configurations(LIB_EAY) + select_library_configurations(SSL_EAY) + + mark_as_advanced(LIB_EAY_LIBRARY_DEBUG LIB_EAY_LIBRARY_RELEASE + SSL_EAY_LIBRARY_DEBUG SSL_EAY_LIBRARY_RELEASE) + set( OPENSSL_LIBRARIES ${SSL_EAY_LIBRARY} ${LIB_EAY_LIBRARY} ) + elseif(MINGW) + message( STATUS "Searching for OpenSSL in MinGW." ) + # same player, for MinGW + set(LIB_EAY_NAMES libeay32) + set(SSL_EAY_NAMES ssleay32) + list(APPEND LIB_EAY_NAMES crypto) + list(APPEND SSL_EAY_NAMES ssl) + + find_library(LIB_EAY + NAMES + ${LIB_EAY_NAMES} + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + PATH_SUFFIXES + "lib" + "lib/MinGW" + # Do not search system path. Otherwise the DLL will be found rather than the link library. + NO_SYSTEM_ENVIRONMENT_PATH + NO_CMAKE_SYSTEM_PATH + ) + + find_library(SSL_EAY + NAMES + ${SSL_EAY_NAMES} + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + PATH_SUFFIXES + "lib" + "lib/MinGW" + # Do not search system path. Otherwise the DLL will be found rather than the link library. + NO_SYSTEM_ENVIRONMENT_PATH + NO_CMAKE_SYSTEM_PATH + ) + + mark_as_advanced(SSL_EAY LIB_EAY) + set( OPENSSL_LIBRARIES ${SSL_EAY} ${LIB_EAY} ) + unset(LIB_EAY_NAMES) + unset(SSL_EAY_NAMES) + else() + # Not sure what to pick for -say- intel, let's use the toplevel ones and hope someone report issues: + find_library(LIB_EAY + NAMES + libeay32 + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + HINTS + ${_OPENSSL_LIBDIR} + PATH_SUFFIXES + lib + ) + + find_library(SSL_EAY + NAMES + ssleay32 + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + HINTS + ${_OPENSSL_LIBDIR} + PATH_SUFFIXES + lib + ) + + mark_as_advanced(SSL_EAY LIB_EAY) + set( OPENSSL_LIBRARIES ${SSL_EAY} ${LIB_EAY} ) + endif() +else() + + find_library(OPENSSL_SSL_LIBRARY + NAMES + ssl + ssleay32 + ssleay32MD + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + HINTS + ${_OPENSSL_LIBDIR} + PATH_SUFFIXES + lib + ) + + find_library(OPENSSL_CRYPTO_LIBRARY + NAMES + crypto + ${_OPENSSL_ROOT_HINTS_AND_PATHS} + HINTS + ${_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} ${_res} PARENT_SCOPE) +endfunction() + +if (OPENSSL_INCLUDE_DIR) + if (_OPENSSL_VERSION) + set(OPENSSL_VERSION "${_OPENSSL_VERSION}") + elseif(OPENSSL_INCLUDE_DIR AND EXISTS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h") + file(STRINGS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h" openssl_version_str + REGEX "^#[\t ]*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. + + message(STATUS "OPENSSL_VERSION_STR=${openssl_version_str}") + + string(REGEX REPLACE "^.*OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F]).*$" + "\\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) + +if (OPENSSL_VERSION) + find_package_handle_standard_args(OpenSSL + REQUIRED_VARS + OPENSSL_LIBRARIES + OPENSSL_INCLUDE_DIR + 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_LIBRARIES + OPENSSL_INCLUDE_DIR + ) +endif () + +mark_as_advanced(OPENSSL_INCLUDE_DIR OPENSSL_LIBRARIES) |