use IO::Pipe;
use IO::File;
use IO::Dir;
+use IO::Handle;
use IPC::Open3;
use Fcntl qw(:DEFAULT :flock);
use base 'Exporter';
}
}
+sub openat($$$;$) {
+ my ($dirfd, $pathname, $flags, $mode) = @_;
+ my $fd = syscall(257, $dirfd, $pathname, $flags, $mode//0);
+ return undef if $fd < 0;
+ # sysopen() doesn't deal with numeric file descriptors apparently
+ # so we need to convert to a mode string for IO::Handle->new_from_fd
+ my $flagstr = ($flags & O_RDWR) ? 'rw' : ($flags & O_WRONLY) ? 'w' : 'r';
+ my $handle = IO::Handle->new_from_fd($fd, $flagstr);
+ return $handle if $handle;
+ my $err = $!; # save error before closing the raw fd
+ syscall(3, $fd); # close
+ $! = $err;
+ return undef;
+}
+
+sub mkdirat($$$) {
+ my ($dirfd, $name, $mode) = @_;
+ return syscall(258, $dirfd, $name, $mode) == 0;
+}
+
1;