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#ifndef _util_h_
#define _util_h_
/* util.c */
extern void set_nonblocking (int fd);
extern void set_blocking (int fd);
extern int fd_can_read (int fd);
extern int fd_drain (int fd);
extern int open_tty (const char *path, int baud);
extern int open_tcp_client (const char *host, unsigned port);
extern int open_tcp_server (unsigned port);
#endif /* _util_h_ */
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