/***************************************************************
  SYS-FCHDIR.C

       This file contains Linux/i386/ILP32 implementation of
       __cpu_sys_fchdir().

       PART OF : CPU - library .

       USAGE   : Internal only .

       Copyright (C) 2026  by Andrew V.Kosteltsev.
       All Rights Reserved.
 ***************************************************************/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <errno.h>
#include <fcntl.h>

#include <libmcpu.h>
#include <cpu-sysdeps.h>


__mpu_int64_t
__cpu_sys_fchdir( int fd )
{
  int  cwd_fd;

  cwd_fd = openat( fd, ".", O_PATH | O_DIRECTORY | O_CLOEXEC );
  if( cwd_fd < 0 ) return( -(__mpu_int64_t)__cpu_errno_from_host( errno ) );
  return( (__mpu_int64_t)cwd_fd );

} /* End of __cpu_sys_fchdir() */