#include <errno.h>
#include <limits.h>
#include <unistd.h>

long fpathconf(int fd, int name) {
  static const short values[] = {[_PC_LINK_MAX] = _POSIX_LINK_MAX,
                                 [_PC_MAX_CANON] = _POSIX_MAX_CANON,
                                 [_PC_MAX_INPUT] = _POSIX_MAX_INPUT,
                                 [_PC_NAME_MAX] = NAME_MAX,
                                 [_PC_PATH_MAX] = PATH_MAX,
                                 [_PC_PIPE_BUF] = PIPE_BUF,
                                 [_PC_CHOWN_RESTRICTED] = 1,
                                 [_PC_NO_TRUNC] = 1,
                                 [_PC_VDISABLE] = 0,
                                 [_PC_SYNC_IO] = 1,
                                 [_PC_ASYNC_IO] = -1,
                                 [_PC_PRIO_IO] = -1,
                                 [_PC_SOCK_MAXBUF] = -1,
                                 [_PC_FILESIZEBITS] = FILESIZEBITS,
                                 [_PC_REC_INCR_XFER_SIZE] = 4096,
                                 [_PC_REC_MAX_XFER_SIZE] = 4096,
                                 [_PC_REC_MIN_XFER_SIZE] = 4096,
                                 [_PC_REC_XFER_ALIGN] = 4096,
                                 [_PC_ALLOC_SIZE_MIN] = 4096,
                                 [_PC_SYMLINK_MAX] = SYMLINK_MAX,
                                 [_PC_2_SYMLINKS] = 1};
  if (name < 0 || (size_t)name >= sizeof(values) / sizeof(values[0])) {
    errno = EINVAL;
    return -1;
  }
  return values[name];
}