isastream
if (!isastream(fd))
if (isastream(fd))
if (!isastream(fd)) {
if ((modules != NULL) && !S_ISFIFO(buf.st_mode) && isastream(1)) {
if (isastream(fd) && !wronly)
if (isastream(0) == 1)
if (isastream(0) != 1)
if (isastream(fd) != 1) {
extern int isastream(int);
if ((s = isastream(fildes)) == 1 || __door_info(fildes, &dinfo) == 0) {