blob: 2a868a78abf6acc76fb39318d30585ee676ad143 [file] [log] [blame]
//===-- Linux implementation of remove ------------------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "src/stdio/remove.h"
#include "src/__support/OSUtil/syscall.h" // For internal syscall function.
#include "src/__support/common.h"
#include <errno.h>
#include <fcntl.h> // For AT_* macros.
#include <sys/syscall.h> // For syscall numbers.
namespace __llvm_libc {
LLVM_LIBC_FUNCTION(int, remove, (const char *path)) {
// We first try unlinking it as a file. If it is ia file, it will succeed. If
// it fails with EISDIR, we will try unlinking it as a directory.
int ret = __llvm_libc::syscall_impl(SYS_unlinkat, AT_FDCWD, path, 0);
if (ret == -EISDIR)
ret = __llvm_libc::syscall_impl(SYS_unlinkat, AT_FDCWD, path, AT_REMOVEDIR);
if (ret >= 0)
return 0;
errno = -ret;
return -1;
} // namespace __llvm_libc