github.com/wasilibs/wazerox@v0.0.0-20240124024944-4923be63ab5f/internal/sysfs/open_file_linux.go (about)

     1  package sysfs
     2  
     3  import (
     4  	"syscall"
     5  
     6  	"github.com/wasilibs/wazerox/experimental/sys"
     7  )
     8  
     9  const supportedSyscallOflag = sys.O_DIRECTORY | sys.O_DSYNC | sys.O_NOFOLLOW | sys.O_NONBLOCK | sys.O_RSYNC
    10  
    11  func withSyscallOflag(oflag sys.Oflag, flag int) int {
    12  	if oflag&sys.O_DIRECTORY != 0 {
    13  		flag |= syscall.O_DIRECTORY
    14  	}
    15  	if oflag&sys.O_DSYNC != 0 {
    16  		flag |= syscall.O_DSYNC
    17  	}
    18  	if oflag&sys.O_NOFOLLOW != 0 {
    19  		flag |= syscall.O_NOFOLLOW
    20  	}
    21  	if oflag&sys.O_NONBLOCK != 0 {
    22  		flag |= syscall.O_NONBLOCK
    23  	}
    24  	if oflag&sys.O_RSYNC != 0 {
    25  		flag |= syscall.O_RSYNC
    26  	}
    27  	return flag
    28  }