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setpgrp(2)							    setpgrp(2)

NAME
       setpgrp - set process group ID

SYNOPSIS
DESCRIPTION
       If  the	calling	 process  is  not  already  a session leader, sets the
       process group ID of the calling process to the process ID of the	 call‐
       ing  process.   If  creates  a new session, then the new session has no
       controlling terminal.

       The function has no effect  when	 the  calling  process	is  a  session
       leader.

   Security Restrictions
       Some or all of the actions associated with this system call may require
       privileges.  See privileges(5) for more information.

RETURN VALUE
       Upon successful completion, returns the new process group ID.

ERRORS
       If fails, no changes occur and (see errno(2)) is set to one of the fol‐
       lowing values:

	      The calling process is already a process group leader or
			     the  process group ID of a process other than the
			     calling process matches the  process  ID  of  the
			     calling process.

	      The calling process does not have sufficient privileges.

SEE ALSO
       exec(2),	 fork(2),  getpid(2),  getsid(2),  kill(2),  setpgrp3(2), set‐
       sid(2), privileges(5), <unistd.h>.

STANDARDS CONFORMANCE
								    setpgrp(2)

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