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serenity/Base/usr/share/man/man3/posix_openpt.md
kleines Filmröllchen 98c0c5e9e6 Help+Base: Add help://man URLs for links between man pages 
The URLs of the form `help://man/<section>/<page>` link to another help
page inside the help application. All previous relative page links are
replaced by this new form. This doesn't change any behavior but it looks
much nicer :^)

Note that man doesn't handle these new links, but the previous relative
links didn't work either.
2022-01-11 00:24:57 +01:00

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Name

posix_openpt - open a pseudo-terminal device

Synopsis

#include <stdlib.h>
#include <fcntl.h>

int posix_openpt(int flags);

Description

Open a pseudo-terminal master using the given flags.

The flags argument accepts a bitmask of the following flags:

  • O_RDWR: Open for both reading and writing.
  • O_NOCTTY: The opened pseudo-terminal will not be made the controlling TTY for the process.
  • O_CLOEXEC: The opened fd shall be closed on exec(2).

Return value

On success, a pseudo-terminal device is allocated and posix_openpt() returns a file descriptor for it. Otherwise, it returns -1 and sets errno to describe the error.

Errors

Returns the same errors as open(2).

See also