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

#include <termios.h>

pid_t tcgetsid(int fildes);

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

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.

The tcgetsid() function will fail if: EACCES

EBADF ENOTTY

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE

Interface Stability Standard

MT-Level MT-Safe

attributes(5), standards(5), termio(7I)