04-09-2015
Hi vgersh99,
Thanks a ton for the solution!
But I would like to know the naming conventions you have used her such as gA, gAl, aAa, gC, aA since i would like to make some format changes in the code..
I would be greatful if you could please guide me line by line explanation for the same..
Thanks again!
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ptsname(3C) ptsname(3C)
NAME
ptsname() - get the pathname of a slave pty (pseudo-terminal)
SYNOPSIS
Obsolescent Interfaces
Remarks
supports STREAMS pty (see ptm(7) and pts(7)), and non-STREAMS pty (see pty(7)) which have different device naming conventions. Notice that
the STREAMS pty, being an optional feature, is supported only when it is installed on the system.
is useful only on systems that follow the insf(1M) naming conventions for pty (STREAMS and non-STREAMS).
DESCRIPTION
The passed parameter, fildes, is a file descriptor of an opened master pty. generates the name of the slave pty corresponding to this mas-
ter pty. This means that their minor numbers will be identical.
Obsolescent Interfaces
gets the pathname of a slave pty (pseudo-terminal).
RETURN VALUE
Upon successful completion, returns a string containing the full path name of a slave pty. Otherwise, a NULL pointer is returned. The
return value is pointed to static data area which is overwritten with each call to so it should be copied if it is to be saved.
ERRORS
fails and returns a NULL pointer under the following conditions:
o File descriptor does not refer to an open master pty.
o Request falls outside pty name-space.
o Pty device naming conventions have not been followed.
o failed to find a match.
WARNINGS
is obsolescent interface supported only for compatibility with existing DCE applications. New multi-threaded applications should use
EXAMPLES
The following example shows how is typically used for non-STREAMS pty to obtain the pathname of the slave pty corresponding to a master pty
obtained through a pty clone open.
...
The following example shows how is typically used on obtaining the pathname of the STREAMS slave pty corresponding to a STREAMS master pty.
...
AUTHOR
and were developed by HP and OSF.
SEE ALSO
insf(1M), devnm(3), pty(7), grantpt(3C), unlockpt(3C), ptm(7), pts(7), ptem(7), ldterm(7).
ptsname(3C)