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Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

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You are here: manpages





TCGETSID

Section: Linux Programmer's Manual (3)
Updated: 2015-03-02
Index Return to Main Contents
 

NAME

tcgetsid - get session ID  

SYNOPSIS

#define _XOPEN_SOURCE 500 /* See feature_test_macros(7) */
#include <termios.h>

pid_t tcgetsid(int fd);  

DESCRIPTION

The function tcgetsid() returns the session ID of the current session that has the terminal associated to fd as controlling terminal. This terminal must be the controlling terminal of the calling process.  

RETURN VALUE

When fd refers to the controlling terminal of our session, the function tcgetsid() will return the session ID of this session. Otherwise, -1 is returned, and errno is set appropriately.  

ERRORS

EBADF
fd is not a valid file descriptor.
ENOTTY
The calling process does not have a controlling terminal, or it has one but it is not described by fd.
 

VERSIONS

tcgetsid() is provided in glibc since version 2.1.  

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).
InterfaceAttributeValue
tcgetsid() Thread safetyMT-Safe
 

CONFORMING TO

POSIX.1-2001.  

NOTES

This function is implemented via the TIOCGSID ioctl(2), present since Linux 2.1.71.  

SEE ALSO

getsid(2)  

COLOPHON

This page is part of release 3.81 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
ATTRIBUTES
CONFORMING TO
NOTES
SEE ALSO
COLOPHON


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