HP-UX Reference (11i v1 05/09) - 3 Library Functions N-Z (vol 7)

t_open(3) t_open(3)

Obsolescent Interfaces

When using TCP and UDP through HP XTI, name can be

/dev/inet_cots

and /dev/inet_clts,

respectively. These names are supported for backward-compatibility purposes. They might not be sup-

ported in future releases, and they should be replaced with

/dev/tcp and /dev/udp, respectively.

RETURN VALUE

A valid endpoint identiﬁer is returned upon successful completion. Otherwise, a value of −1 is returned and

t_errno is set to indicate an error.

HP OSI does not support the T_COTS_ORD

servtype.

ERRORS

On error,

t_errno is set to one of the following:

[TBADFLAG] An invalid ﬂag is speciﬁed.

[TBADNAME] Invalid transport provider name.

[TSYSERR] A system error has occurred during execution of this function.

[TPROTO] (XTI only) This error indicates that a communication problem has been detected between

XTI and the transport provider for which there is no suitable XTI (t_errno).