sbin/dhcpagent/script_handler.c

120 run_script(dhcp_smach_t *dsmp, const char *event, int fd)
145 		(void) execl(path, name, dsmp->dsm_name, event, NULL);
196 script_init(dhcp_smach_t *dsmp)
198 	dsmp->dsm_script_pid = -1;
199 	dsmp->dsm_script_helper_pid = -1;
200 	dsmp->dsm_script_event_id = -1;
201 	dsmp->dsm_script_fd = -1;
202 	dsmp->dsm_script_callback = NULL;
203 	dsmp->dsm_script_event = NULL;
204 	dsmp->dsm_callback_arg = NULL;
215 script_cleanup(dhcp_smach_t *dsmp)
221 	dsmp->dsm_script_pid = -1;
222 	dsmp->dsm_script_helper_pid = -1;
224 	if (dsmp->dsm_script_fd != -1) {
225 		assert(dsmp->dsm_script_event_id != -1);
226 		(void) iu_unregister_event(eh, dsmp->dsm_script_event_id, NULL);
227 		(void) close(dsmp->dsm_script_fd);
229 		assert(dsmp->dsm_script_callback != NULL);
230 		dsmp->dsm_script_callback(dsmp, dsmp->dsm_callback_arg);
231 		script_init(dsmp);
233 		release_smach(dsmp);	/* hold from script_start() */
282 script_start(dhcp_smach_t *dsmp, const char *event,
292 	if (dsmp->dsm_script_pid != -1) {
295 		script_stop(dsmp);
328 		run_script(dsmp, event, fds[1]);
335 	if (read(fds[0], &dsmp->dsm_script_pid, sizeof (pid_t)) !=
338 		dsmp->dsm_script_pid = -1;
343 	dsmp->dsm_script_helper_pid = pid;
344 	event_id = iu_register_event(eh, fds[0], POLLIN, script_exit, dsmp);
347 		script_stop(dsmp);
352 	dsmp->dsm_script_event_id = event_id;
353 	dsmp->dsm_script_callback = callback;
354 	dsmp->dsm_script_event = event;
355 	dsmp->dsm_callback_arg = arg;
356 	dsmp->dsm_script_fd = fds[0];
357 	hold_smach(dsmp);
362 	n = callback(dsmp, arg);
377 script_stop(dhcp_smach_t *dsmp)
379 	if (dsmp->dsm_script_pid != -1) {
380 		assert(dsmp->dsm_script_helper_pid != -1);
387 		(void) kill(dsmp->dsm_script_pid, SIGTERM);
388 		(void) kill(dsmp->dsm_script_helper_pid, SIGTERM);
391 	script_cleanup(dsmp);