mirror of
https://github.com/RGBCube/serenity
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4e530135d5
This creates an error that contains the name of the syscall that failed. This allows error handlers to print out the name of the call if they want to. :^)
38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibSystem/Wrappers.h>
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#include <LibSystem/syscall.h>
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#define HANDLE_SYSCALL_RETURN_VALUE(syscall_name, rc) \
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if ((rc) < 0) { \
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return Error::from_syscall(syscall_name, rc); \
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} \
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return {};
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namespace System {
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ErrorOr<void> pledge(StringView promises, StringView execpromises)
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{
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Syscall::SC_pledge_params params {
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{ promises.characters_without_null_termination(), promises.length() },
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{ execpromises.characters_without_null_termination(), execpromises.length() },
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};
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int rc = syscall(SC_pledge, ¶ms);
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HANDLE_SYSCALL_RETURN_VALUE("pledge"sv, rc);
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}
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ErrorOr<void> unveil(StringView path, StringView permissions)
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{
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Syscall::SC_unveil_params params {
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{ path.characters_without_null_termination(), path.length() },
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{ permissions.characters_without_null_termination(), permissions.length() },
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};
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int rc = syscall(SC_unveil, ¶ms);
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HANDLE_SYSCALL_RETURN_VALUE("unveil"sv, rc);
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}
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}
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