setbuf
setbuf(stdout, NULL);
setbuf(KTFILEP(id), KTFILEBUFP(id));
setbuf(fp, NULL);
setbuf(fp, NULL);
setbuf(in, NULL);
void setbuf(FILE * __restrict, char * __restrict);
setbuf(fp, NULL);
setbuf(stdout, (char *)NULL);
setbuf(stdout, (char *)NULL);
setbuf(stdout, NULL);
setbuf(stderr, NULL);
setbuf(stdout,0);
setbuf(stderr,0);
setbuf(stdout, NULL);
setbuf(stdout, NULL);
setbuf(stderr, NULL);
setbuf(stdout, NULL);
setbuf(outf, (char *)NULL);
setbuf(stdout, NULL);
setbuf(stderr, NULL);
setbuf(msg, NULL);
setbuf(stdout, NULL);
setbuf(stdout, NULL);
setbuf(stdout, (char *)NULL);
setbuf(stdout, NULL);
setbuf(tty,0);
setbuf(stdout,0);
setbuf(stdout, outbuf);
(void)setbuf(debug, (char *)0);
setbuf(stdout, NULL);
setbuf(stderr, NULL);