Recursive pid script Post: 302116217

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LEARN ABOUT OPENDARWIN

getsid

GETSID(2)						      BSD System Calls Manual							 GETSID(2)

NAME

     getsid -- get process session

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     pid_t
     getsid(pid_t pid);

DESCRIPTION

     The session ID of the process identified by pid is returned by getsid().  If pid is zero, getsid() returns the session ID of the current
     process.

RETURN VALUES

     Upon successful completion, the function getsid() returns the session ID of the specified process; otherwise, it returns a value of -1 and
     sets errno to indicate an error.

ERRORS

     getsid() will succeed unless:

     [ESRCH]		if there is no process with a process ID equal to pid.

     Note that an implementation may restrict this function call to processes within the same session ID as the calling process.

SEE ALSO

     getpgid(2), getpgrp(2), setpgid(2), setsid(2), termios(4)

HISTORY

     The getsid() function call appeared in FreeBSD 3.0.  The getsid() function call is derived from its usage in AT&T System V UNIX.

BSD
								  August 19, 1997							       BSD