TCGETSID(3C) Standard C Library Functions TCGETSID(3C)

NAME

tcgetsid - get process group ID for session leader for controlling
terminal

SYNOPSIS

#include <termios.h>

pid_t tcgetsid(int fildes);

DESCRIPTION

The tcgetsid() function obtains the process group ID of the session
for which the terminal specified by fildes is the controlling
terminal.

RETURN VALUES

Upon successful completion, tcgetsid() returns the process group ID
associated with the terminal. Otherwise, a value of (pid_t)-1 is
returned and errno is set to indicate the error.

ERRORS

The tcgetsid() function will fail if:

EACCES
The fildes argument is not associated with a controlling
terminal.


EBADF
The fildes argument is not a valid file descriptor.


ENOTTY
The file associated with fildes is not a terminal.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

termio(4I), attributes(7), standards(7)

August 14, 2002 TCGETSID(3C)