libc/src/stdio/linux/fdopen.cpp

   1 //===-- Implementation of fdopen --------------------------------*- C++ -*-===//
   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/stdio/fdopen.h"
  10
  11 #include "src/__support/File/linux/file.h"
  12 #include "src/__support/macros/config.h"
  13 #include "src/errno/libc_errno.h"
  14
  15 namespace LIBC_NAMESPACE_DECL {
  16
  17 LLVM_LIBC_FUNCTION(::FILE *, fdopen, (int fd, const char *mode)) {
  18   auto result = LIBC_NAMESPACE::create_file_from_fd(fd, mode);
  19   if (!result.has_value()) {
  20     libc_errno = result.error();
  21     return nullptr;
  22   }
  23   return reinterpret_cast<::FILE *>(result.value());
  24 }
  25
  26 } // namespace LIBC_NAMESPACE_DECL