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Manual Pages  — TCGETSID

NAME

tcgetsid – get session ID associated with a controlling terminal

CONTENTS

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <sys/types.h>
#include <termios.h>

pid_t
tcgetsid(int fd);

DESCRIPTION

The tcgetsid() function returns the process group ID of the session leader for a controlling terminal specified by fd.

ERRORS

If an error occurs, tcgetsid() returns -1 and the global variable errno is set to indicate the error, as follows:
[EBADF]
  The fd argument is not a valid file descriptor.
[ENOTTY]
  The calling process does not have a controlling terminal or the underlying terminal device represented by fd is not the controlling terminal.

SEE ALSO

getsid(2), setsid(2), tcgetpgrp(3), tcsetsid(3)

STANDARDS

The tcgetsid() function conforms to -xpg4.2.

TCGETSID (3) April 15, 2008

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