Man Ttyname en anglais
TTYNAME(3)                 Linux Programmer's Manual                TTYNAME(3)



 

NAME


       ttyname, ttyname_r - return name of a terminal

 

SYNOPSIS


       #include 

       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 path-
       name 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 function
       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


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       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)