Section: Linux Programmer's Manual (3)
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ctermid - get controlling terminal name
char *ctermid(char *s);
Feature Test Macro Requirements for glibc (see
_POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
returns a string which is the pathname for the current
controlling terminal for this process.
a static buffer is used, otherwise
points to a buffer used to hold the terminal pathname.
The symbolic constant
is the maximum number of characters in the returned pathname.
The pointer to the pathname.
Multithreading (see pthreads(7))
function is thread-safe with exceptions.
It is not thread-safe if called with a NULL parameter.
The path returned may not uniquely identify the controlling
terminal; it may, for example, be
It is not assured that the program can open the terminal.
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- RETURN VALUE
- Multithreading (see pthreads(7))
- CONFORMING TO
- SEE ALSO