/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2025 Klara, Inc.
 */

#include "namespace.h"
#include <sys/fcntl.h>
#include <sys/inotify.h>
#include <sys/specialfd.h>
#include "un-namespace.h"
#include "libc_private.h"

/*
 * Provide compatibility with libinotify, which uses different values for these
 * flags.
 */
#define IN_NONBLOCK_OLD 0x80000
#define IN_CLOEXEC_OLD  0x00800

int
inotify_add_watch(int fd, const char *pathname, uint32_t mask)
{
        return (inotify_add_watch_at(fd, AT_FDCWD, pathname, mask));
}

int
inotify_init1(int flags)
{
        struct specialfd_inotify args;

        if ((flags & IN_NONBLOCK_OLD) != 0) {
                flags &= ~IN_NONBLOCK_OLD;
                flags |= IN_NONBLOCK;
        }
        if ((flags & IN_CLOEXEC_OLD) != 0) {
                flags &= ~IN_CLOEXEC_OLD;
                flags |= IN_CLOEXEC;
        }
        args.flags = flags;
        return (__sys___specialfd(SPECIALFD_INOTIFY, &args, sizeof(args)));
}

int
inotify_init(void)
{
        return (inotify_init1(0));
}