egid=(p1)
public
Sets the effective group ID for this process. Not available on all
platforms.
static VALUE
proc_setegid(VALUE obj, VALUE egid)
{
rb_gid_t gid;
check_gid_switch();
gid = NUM2GIDT(egid);
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
if (setresgid(-1, gid, -1) < 0) rb_sys_fail(0);
#elif defined HAVE_SETREGID
if (setregid(-1, gid) < 0) rb_sys_fail(0);
#elif defined HAVE_SETEGID
if (setegid(gid) < 0) rb_sys_fail(0);
#elif defined HAVE_SETGID
if (gid == getgid()) {
if (setgid(gid) < 0) rb_sys_fail(0);
}
else {
rb_notimplement();
}
#else
rb_notimplement();
#endif
return egid;
}