1 //===-- Implementation of creat -------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/fcntl/creat.h" 10 11 #include "src/__support/OSUtil/syscall.h" // For internal syscall function. 12 #include "src/__support/common.h" 13 #include "src/errno/libc_errno.h" 14 15 #include <fcntl.h> 16 #include <sys/syscall.h> // For syscall numbers. 17 18 namespace LIBC_NAMESPACE { 19 20 LLVM_LIBC_FUNCTION(int, creat, (const char *path, int mode_flags)) { 21 #ifdef SYS_open 22 int fd = LIBC_NAMESPACE::syscall_impl<int>( 23 SYS_open, path, O_CREAT | O_WRONLY | O_TRUNC, mode_flags); 24 #else 25 int fd = LIBC_NAMESPACE::syscall_impl<int>( 26 SYS_openat, AT_FDCWD, path, O_CREAT | O_WRONLY | O_TRUNC, mode_flags); 27 #endif 28 29 if (fd > 0) 30 return fd; 31 32 libc_errno = -fd; 33 return -1; 34 } 35 36 } // namespace LIBC_NAMESPACE 37