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60 lines
1.6 KiB
CMake
60 lines
1.6 KiB
CMake
# Try to find the PAM libraries, once done this will define:
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#
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# PAM_FOUND - system has pam
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# PAM_INCLUDE_DIR - the pam include directory
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# PAM_LIBRARIES - libpam library
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# PAM_MESSAGE_CONST - libpam pam_message struct is const
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#
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# Copyright (c) 2021 Ivailo Monev <xakepa10@gmail.com>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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find_path(PAM_INCLUDE_DIR NAMES security/pam_appl.h)
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find_library(PAM_LIBRARY pam)
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find_library(DL_LIBRARY dl)
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if(DL_LIBRARY)
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set(PAM_LIBRARIES ${PAM_LIBRARY} ${DL_LIBRARY})
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else()
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set(PAM_LIBRARIES ${PAM_LIBRARY})
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endif()
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if(NOT DEFINED PAM_MESSAGE_CONST)
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include(CheckCXXSourceCompiles)
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include(CMakePushCheckState)
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cmake_reset_check_state()
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set(CMAKE_REQUIRED_INCLUDES "${PAM_INCLUDE_DIR}")
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# XXX does this work with plain c?
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check_cxx_source_compiles("
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#include <security/pam_appl.h>
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static int PAM_conv(
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int num_msg,
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const struct pam_message **msg, /* this is the culprit */
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struct pam_response **resp,
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void *ctx)
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{
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return 0;
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}
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int main(void)
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{
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struct pam_conv PAM_conversation = {
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&PAM_conv, /* this bombs out if the above does not match */
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0
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};
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return 0;
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}
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" PAM_MESSAGE_CONST)
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cmake_reset_check_state()
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endif()
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set(PAM_MESSAGE_CONST ${PAM_MESSAGE_CONST} CACHE BOOL "PAM expects a conversation function with const pam_message")
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(PAM
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REQUIRED_VARS PAM_LIBRARIES PAM_INCLUDE_DIR
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)
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mark_as_advanced(PAM_INCLUDE_DIR PAM_LIBRARY DL_LIBRARY PAM_MESSAGE_CONST)
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