FIONREAD          181 ext/fileinfo/libmagic/compress.c #ifdef FIONREAD
FIONREAD          189 ext/fileinfo/libmagic/compress.c #ifdef FIONREAD
FIONREAD          190 ext/fileinfo/libmagic/compress.c 	if (canbepipe && (ioctl(fd, FIONREAD, &t) == -1 || t == 0)) {
FIONREAD          215 ext/fileinfo/libmagic/compress.c 		(void)ioctl(fd, FIONREAD, &t);