NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | STANDARDS | HISTORY | BUGS | SEE ALSO |
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ctermid(3) Library Functions Manual ctermid(3)
ctermid - get controlling terminal name
Standard C library (libc, -lc)
#include <stdio.h> char *ctermid(char *s); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): ctermid(): _POSIX_C_SOURCE
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.
The pointer to the pathname.
For an explanation of the terms used in this section, see attributes(7). ┌─────────────────────────────────────┬───────────────┬─────────┐ │ Interface │ Attribute │ Value │ ├─────────────────────────────────────┼───────────────┼─────────┤ │ ctermid() │ Thread safety │ MT-Safe │ └─────────────────────────────────────┴───────────────┴─────────┘
POSIX.1-2008.
POSIX.1-2001, Svr4.
The returned pathname 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.
ttyname(3)
Linux man-pages (unreleased) (date) ctermid(3)
Pages that refer to this page: ttyname(3)