/*      $OpenBSD: w_fcntl.c,v 1.2 2025/08/04 04:59:31 guenther Exp $ */
/*
 * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <fcntl.h>
#include <stdarg.h>
#include "cancel.h"

int
fcntl(int fd, int cmd, ...)
{
        va_list ap;
        int ret;

        va_start(ap, cmd);
        switch (cmd) {
        case F_DUPFD:
        case F_DUPFD_CLOEXEC:
        case F_DUPFD_CLOFORK:
        case F_SETFD:
        case F_SETFL:
        case F_SETOWN:
                ret = HIDDEN(fcntl)(fd, cmd, va_arg(ap, int));
                break;
        case F_GETFD:
        case F_GETFL:
        case F_GETOWN:
        case F_ISATTY:
                ret = HIDDEN(fcntl)(fd, cmd);
                break;
        case F_GETLK:
        case F_SETLK:
                ret = HIDDEN(fcntl)(fd, cmd, va_arg(ap, struct flock *));
                break;
        case F_SETLKW:
                ENTER_CANCEL_POINT(1);
                ret = HIDDEN(fcntl)(fd, cmd, va_arg(ap, struct flock *));
                LEAVE_CANCEL_POINT(ret == -1);
                break;
        default:        /* should never happen? */
                ret = HIDDEN(fcntl)(fd, cmd, va_arg(ap, void *));
                break;
        }
        va_end(ap);
        return (ret);
}
DEF_CANCEL(fcntl);