table of contents
GETSID(2) | Linux Programmer's Manual | GETSID(2) |
NAME¶
getsid - get session ID
SYNOPSIS¶
#include <unistd.h>
pid_t getsid(pid_t pid);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
getsid():
|| /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
DESCRIPTION¶
getsid(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 VALUE¶
On success, a session ID is returned. On error, (pid_t) -1 will be returned, and errno is set appropriately.
ERRORS¶
VERSIONS¶
This system call is available on Linux since version 2.0.
CONFORMING TO¶
SVr4, POSIX.1-2001.
NOTES¶
Linux does not return EPERM.
SEE ALSO¶
COLOPHON¶
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
2010-09-26 | Linux |