/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or 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 "libc/calls/internal.h"
#include "libc/calls/ioctl.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/weaken.h"
#include "libc/nt/winsock.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"

int ioctl_default(int fd, uint64_t request, ...) {
  int rc;
  void *arg;
  va_list va;
  int64_t handle;
  va_start(va, request);
  arg = va_arg(va, void *);
  va_end(va);
  if (!IsWindows()) {
    return sys_ioctl(fd, request, arg);
  } else if (__isfdopen(fd)) {
    if (g_fds.p[fd].kind == kFdSocket) {
      handle = __getfdhandleactual(fd);
      if ((rc = _weaken(__sys_ioctlsocket_nt)(handle, request, arg)) != -1) {
        return rc;
      } else {
        return _weaken(__winsockerr)();
      }
    } else {
      return eopnotsupp();
    }
  } else {
    return ebadf();
  }
}