CTERMID Section: Linux Programmer's Manual (3) Updated: April 6, 2025 Index   NAME ctermid - get controlling terminal name   SYNOPSIS #include <stdio.h> char *ctermid(char *s);   DESCRIPTION ctermid() returns a string which is the pathname for the current controlling terminal for this process. If s is NULL, a static buffer is used, otherwise s points to a buffer used to hold the terminal pathname. The symbolic constant L_ctermid is the maximum number of characters in the returned pathname.   RETURN VALUE The pointer to the pathname.   CONFORMING TO POSIX.1   BUGS The path returned may not uniquely identify the controlling terminal; it may, for example, be /dev/tty. It is not assured that the program can open the terminal.   SEE ALSO   Index NAME SYNOPSIS DESCRIPTION RETURN VALUE CONFORMING TO BUGS SEE ALSO This document was created by using the manual pages. Time: 11:58:02 GMT, March 24, 2025