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ttyname(3) [centos man page]

TTYNAME(3)						     Linux Programmer's Manual							TTYNAME(3)

NAME
ttyname, ttyname_r - return name of a terminal SYNOPSIS
#include <unistd.h> char *ttyname(int fd); int ttyname_r(int fd, char *buf, size_t buflen); DESCRIPTION
The function ttyname() returns a pointer to the null-terminated pathname of the terminal device that is open on the file descriptor fd, or NULL on error (for example, if fd is not connected to a terminal). The return value may point to static data, possibly overwritten by the next call. The function ttyname_r() stores this pathname in the buffer buf of length buflen. RETURN VALUE
The function ttyname() returns a pointer to a pathname on success. On error, NULL is returned, and errno is set appropriately. The func- tion ttyname_r() returns 0 on success, and an error number upon error. ERRORS
EBADF Bad file descriptor. ENOTTY File descriptor does not refer to a terminal device. ERANGE (ttyname_r()) buflen was too small to allow storing the pathname. ATTRIBUTES
Multithreading (see pthreads(7)) The ttyname() function is not thread-safe. The ttyname_r() function is thread-safe. CONFORMING TO
4.2BSD, POSIX.1-2001. SEE ALSO
fstat(2), ctermid(3), isatty(3) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2013-06-21 TTYNAME(3)

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TTYNAME(3)						     Linux Programmer's Manual							TTYNAME(3)

NAME
ttyname, ttyname_r - return name of a terminal SYNOPSIS
#include <unistd.h> char *ttyname(int fd); int ttyname_r(int fd, char *buf, size_t buflen); DESCRIPTION
The function ttyname() returns a pointer to the null-terminated pathname of the terminal device that is open on the file descriptor fd, or NULL on error (for example, if fd is not connected to a terminal). The return value may point to static data, possibly overwritten by the next call. The function ttyname_r() stores this pathname in the buffer buf of length buflen. RETURN VALUE
The function ttyname() returns a pointer to a pathname on success. On error, NULL is returned, and errno is set appropriately. The func- tion ttyname_r() returns 0 on success, and an error number upon error. ERRORS
ttyname_r(): EBADF Bad file descriptor. ENOTTY File descriptor does not refer to a terminal device. ERANGE buflen was too small to allow storing the pathname. CONFORMING TO
4.2BSD, POSIX.1-2001. SEE ALSO
fstat(2), isatty(3) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2008-07-14 TTYNAME(3)
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