FIONREAD          192 ext/fileinfo/libmagic/compress.c #ifdef FIONREAD
FIONREAD          200 ext/fileinfo/libmagic/compress.c #ifdef FIONREAD
FIONREAD          201 ext/fileinfo/libmagic/compress.c 	if (canbepipe && (ioctl(fd, FIONREAD, &t) == -1 || t == 0)) {
FIONREAD          226 ext/fileinfo/libmagic/compress.c 		(void)ioctl(fd, FIONREAD, &t);