#include <u.h>#include <libc.h> Stream*stream(int fd, vlong offset, char isread) {	Stream *s;	s = mallocz(sizeof(Stream), 1);	int r; 	s->addr = malloc(128);	s->isread = isread;	s->ofd = fd;	s->offset = offset;	r = pstream(fd, s->addr, offset, isread);	if (r == -1) {		// The server is not 9P2000.s compatible!		s->compatibility = 1;		return s;	}	if (s->addr == nil) {		/* Error */		return nil;	} 	s->conn = dial(s->addr, 0, 0, 0); 	return s;}