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getlcid(2) [osx man page]

GETLCID(2)						      BSD System Calls Manual							GETLCID(2)

NAME
getlcid -- get login context SYNOPSIS
#include <sys/lctx.h> pid_t getlcid(pid_t pid); DESCRIPTION
The login context of the process identified by pid is returned by getlcid(). If pid is zero, getlcid() returns the login context of the cur- rent process. Login contexts are used for tracking processes that originated from a users login session. A login context is inherited via fork() or by explicit creation using the setlcid() call. RETURN VALUES
If successful, getlcid() returns a non-negative integer, the Login Context ID; otherwise the value -1 is returned and the global variable errno is set to indicate the error. ERRORS
The getlcid() function will fail if: [EPERM] Operation not permitted. [ESRCH] No such process. [ENOATTR] Attribute not found. SEE ALSO
setlcid(2) HISTORY
The getlcid manual page first appeared in FreeBSD 6.0. AUTHORS
This manual page was written by Matthew N. Dodd <mdodd@FreeBSD.org>. BSD
May 5, 2005 BSD

Check Out this Related Man Page

getsid(2)							   System Calls 							 getsid(2)

NAME
getsid - get process group ID of session leader SYNOPSIS
#include <unistd.h> pid_t getsid(pid_t pid); DESCRIPTION
The getsid() function obtains the process group ID of the process that is the session leader of the process specified by pid. If pid is (pid_t)0, it specifies the calling process. RETURN VALUES
Upon successful completion, getsid() returns the process group ID of the session leader of the specified process. Otherwise, it returns (pid_t)-1 and sets errno to indicate the error. ERRORS
The getsid() function will fail if: EPERM The process specified by pid is not in the same session as the calling process, and the implementation does not allow access to the process group ID of the session leader of that process from the calling process. ESRCH There is no process with a process ID equal to pid. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
exec(2), fork(2), getpid(2), getpgid(2), setpgid(2), setsid(2), attributes(5), standards(5) SunOS 5.11 22 Jan 1996 getsid(2)
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