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https://github.com/SerenityOS/serenity
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2a78bf8596
The Process::Handler type has KResultOr<FlatPtr> as its return type. Using a different return type with an equally-sized template parameter sort of works but breaks once that condition is no longer true, e.g. for KResultOr<int> on x86_64. Ideally the syscall handlers would also take FlatPtrs as their args so we can get rid of the reinterpret_cast for the function pointer but I didn't quite feel like cleaning that up as well.
66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
/*
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* Copyright (c) 2018-2020, 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 <Kernel/Process.h>
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namespace Kernel {
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KResultOr<FlatPtr> Process::sys$getuid()
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{
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REQUIRE_PROMISE(stdio);
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return uid();
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}
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KResultOr<FlatPtr> Process::sys$getgid()
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{
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REQUIRE_PROMISE(stdio);
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return gid();
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}
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KResultOr<FlatPtr> Process::sys$geteuid()
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{
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REQUIRE_PROMISE(stdio);
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return euid();
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}
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KResultOr<FlatPtr> Process::sys$getegid()
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{
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REQUIRE_PROMISE(stdio);
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return egid();
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}
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KResultOr<FlatPtr> Process::sys$getresuid(Userspace<uid_t*> ruid, Userspace<uid_t*> euid, Userspace<uid_t*> suid)
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{
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REQUIRE_PROMISE(stdio);
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if (!copy_to_user(ruid, &m_uid) || !copy_to_user(euid, &m_euid) || !copy_to_user(suid, &m_suid))
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return EFAULT;
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return 0;
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}
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KResultOr<FlatPtr> Process::sys$getresgid(Userspace<gid_t*> rgid, Userspace<gid_t*> egid, Userspace<gid_t*> sgid)
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{
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REQUIRE_PROMISE(stdio);
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if (!copy_to_user(rgid, &m_gid) || !copy_to_user(egid, &m_egid) || !copy_to_user(sgid, &m_sgid))
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return EFAULT;
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return 0;
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}
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KResultOr<FlatPtr> Process::sys$getgroups(size_t count, Userspace<gid_t*> user_gids)
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{
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REQUIRE_PROMISE(stdio);
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if (!count)
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return extra_gids().size();
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if (count != extra_gids().size())
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return EINVAL;
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if (!copy_to_user(user_gids, extra_gids().data(), sizeof(gid_t) * count))
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return EFAULT;
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return 0;
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}
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}
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