1 .\" Copyright (c) 1997 Peter Wemm <peter@FreeBSD.org>
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24 .\" $FreeBSD: src/lib/libc/sys/getsid.2,v 1.3.2.5 2001/12/14 18:34:00 ru Exp $
25 .\" $DragonFly: src/lib/libc/sys/getsid.2,v 1.3 2007/06/30 19:03:52 swildner Exp $
32 .Nd get process session
38 .Fn getsid "pid_t pid"
40 The session ID of the process identified by
48 returns the session ID of the current process.
50 Upon successful completion, the function
52 returns the session ID of
53 the specified process; otherwise, it returns a value of -1 and
62 if there is no process with a process ID equal to
66 Note that an implementation may restrict this function call to
67 processes within the same session ID as the calling process.
77 function call appeared in
81 function call is derived from its usage in