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Kernel: Pass a parameter struct to symlink()

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This commit is contained in:
Andreas Kling 2020-01-11 10:31:33 +01:00
parent c97bfbd609
commit 46830a0c32
4 changed files with 23 additions and 8 deletions
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17
Kernel/Process.cpp
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@ -2587,14 +2587,19 @@ int Process::sys$unlink(const char* user_path, size_t path_length)
return VFS::the().unlink(path.value(), current_directory());
}
int Process::sys$symlink(const char* target, const char* linkpath)
int Process::sys$symlink(const Syscall::SC_symlink_params* user_params)
{
SmapDisabler disabler;
if (!validate_read_str(target))
if (!validate_read_typed(user_params))
return -EFAULT;
if (!validate_read_str(linkpath))
return -EFAULT;
return VFS::the().symlink(StringView(target), StringView(linkpath), current_directory());
Syscall::SC_symlink_params params;
copy_from_user(&params, user_params);
auto target = get_syscall_path_argument(params.target.characters, params.target.length);
if (target.is_error())
return target.error();
auto linkpath = get_syscall_path_argument(params.linkpath.characters, params.linkpath.length);
if (linkpath.is_error())
return linkpath.error();
return VFS::the().symlink(target.value(), linkpath.value(), current_directory());
}
KResultOr<String> Process::get_syscall_path_argument(const char* user_path, size_t path_length)