Function rustix::io::dup3

source · [−]
pub fn dup3<Fd: AsFd>(fd: Fd, new: &mut OwnedFd, flags: DupFlags) -> Result<()>
Expand description

dup3(fd, new, flags)—Changes the file description of a file descriptor, with flags.

dup3 is the same as dup2 but adds an additional flags operand, and it fails in the case that fd and new have the same file descriptor value. This additional difference is the reason this function isn’t named dup2_with.

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