/** Copyright 2007, Vasilis Kaoutsis, kaoutsis@sch.gr.* Distributed under the terms of the MIT License.*/#include <errno.h>#include <signal.h>#include <errno_private.h>intkillpg(pid_t processGroupID, int signal){if (processGroupID > 1)return kill(-processGroupID, signal);else {__set_errno(EINVAL);return -1;}}