GETSID
Section: Linux Programmer's Manual (2)Updated: 2008-12-05
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NAME
getsid - get session IDSYNOPSIS
#include <unistd.h>pid_t getsid(pid_t pid);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
getsid(): _XOPEN_SOURCE >= 500
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
- EPERM
- A process with process ID p exists, but it is not in the same session as the calling process, and the implementation considers this an error.
- ESRCH
- No process with process ID p was found.
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
getpgid(2), setsid(2), credentials(7)COLOPHON
This page is part of release 3.22 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/.
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Time: 05:33:03 GMT, December 24, 2015