26 lines
874 B
C++
26 lines
874 B
C++
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// Copyright (c) Lysann Tranvouez. All rights reserved.
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#include <catch2/catch_test_macros.hpp>
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#include <mach_detours.h>
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char* (*realStrerror)(int) = strerror;
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char* strerrorDetour(int errno)
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{
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return (char *)"strerrorOverride";
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}
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TEST_CASE( "Overriding system function", "[attach][system]" )
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{
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REQUIRE( std::string_view(strerror( 0 )) == "Undefined error: 0" );
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REQUIRE( detour_transaction_begin() == err_none );
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REQUIRE( detour_attach_and_commit(reinterpret_cast<detour_func_t*>(&realStrerror), reinterpret_cast<detour_func_t>(strerrorDetour)) == err_none );
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CHECK( std::string_view(strerror( 0 )) == "strerrorOverride" );
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// clean up
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CHECK( detour_transaction_begin() == err_none );
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CHECK( detour_detach_and_commit(reinterpret_cast<detour_func_t*>(&realStrerror), reinterpret_cast<detour_func_t>(strerrorDetour)) == err_none );
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}
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