getpgrp
pid_t getpgrp(void);
pgid = getpgrp();
int pgrp = getpgrp(0);
int pgrp = getpgrp();
if (getpid() == getpgrp()) {
mdb.m_pgid = getpgrp();
pgid = getpgrp();
my_pgid = getpgrp();
return (parse_ids(&g_psexp.ps_pgids, arg, 10, c, getpgrp()));
*idptr = (id_t)getpgrp();
itoa((long)getpgrp(), idstr);
(void) sigsend(P_PGID, getpgrp(), WSTOPSIG(status));
if (tcgetpgrp(fd) == getpgrp()) {
extern pid_t getpgrp(void);
if (getpid() == getpgrp()) {
if (getpid() == getpgrp()) {
extern pid_t getpgrp(void);