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

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)