ctermid man page on OpenBSD

ctermid man page on OpenBSD

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CTERMID(3)		  OpenBSD Programmer's Manual		    CTERMID(3)

NAME
     ctermid - generate terminal pathname

SYNOPSIS
     #include <stdio.h>

     char *
     ctermid(char *buf);

DESCRIPTION
     The ctermid() function generates a string that, when used as a pathname,
     refers to the current controlling terminal of the calling process.

     If buf is a null pointer, a pointer to a static area is returned.
     Otherwise, the pathname is copied into the memory referenced by buf.  The
     argument buf is assumed to point to an array at least L_ctermid (as
     defined in the include file <stdio.h>) bytes long.

     The current implementation simply generates "/dev/tty".

RETURN VALUES
     The ctermid() function returns a non-null pointer, which is equal to the
     buf argument if it is not NULL.

ERRORS
     The current implementation detects no error conditions.

SEE ALSO
     ttyname(3)

STANDARDS
     The ctermid() function conforms to IEEE Std 1003.1-1988 (``POSIX'').

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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