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CTERMID(3) Library Functions Manual CTERMID(3) NAME ctermid - generate terminal pathname LIBRARY Standard C Library (libc, -lc) 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 the 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 bytes long (as defined in the include file <stdio.h>). The current implementation simply returns `/dev/tty'. RETURN VALUES Upon successful completion, a non-NULL pointer is returned. Otherwise, a NULL pointer is returned and the global variable errno is set to indicate the error. ERRORS The current implementation detects no error conditions. SEE ALSO ttyname(3) STANDARDS The ctermid() function conforms to IEEE Std 1003.1-1990 ("POSIX.1"). BUGS By default the ctermid() function writes all information to an internal static object. Subsequent calls to ctermid() will modify the same object. NetBSD 8.0 June 4, 1993 NetBSD 8.0