ttyslot(S)

ttyslot -- find the slot in the utmp file of the current user

Synopsis

   #include <stdlib.h>
   
   int ttyslot (void);

Description

ttyslot returns the index of the current user's entry in the /var/adm/utmp file. The returned index is accomplished by scanning files in /dev for the name of the terminal associated with the standard input, the standard output, or the standard error output (0, 1, or 2).

Files

/var/adm/utmp

Errors

A value of -1 is returned if an error was encountered while searching for the terminal name or if none of the above file descriptors are associated with a terminal device.

References

getut(S), ttyname(S)