Manpage of GETSID
GETSIDSection: Linux Programmer's Manual (2)
NAMEgetsid - get session ID
pid_t getsid(pid_t pid);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
- _XOPEN_SOURCE >= 500
|| /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
DESCRIPTIONgetsid(0)returns the session ID of the calling process. getsid(p)returns the session ID of the process with process ID p. (The session ID of a process is the process group ID of the session leader.)
RETURN VALUEOn success, a session ID is returned. On error, (pid_t) -1 will be returned, and errnois set appropriately.
- A process with process ID pexists, but it is not in the same session as the calling process, and the implementation considers this an error.
- No process with process ID pwas found.
VERSIONSThis system call is available on Linux since version 2.0.
CONFORMING TOPOSIX.1-2001, POSIX.1-2008, SVr4.
NOTESLinux does not return EPERM.
SEE ALSOgetpgid(2), setsid(2), credentials(7)
This document was created by man2html, using the manual pages.
Time: 22:27:40 GMT, June 20, 2016