1 /* -*- Mode: C; c-basic-offset:8 ; indent-tabs-mode:t -*- */
4  * Copyright (C) 2007-2009 Daniel Drake <dsd@gentoo.org>
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
50 static int linux_netlink_socket = -1;
64 		if (flags == -1) {  in set_fd_cloexec_nb()
66 			return -1;  in set_fd_cloexec_nb()
69 		if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) {  in set_fd_cloexec_nb()
71 			return -1;  in set_fd_cloexec_nb()
76 	/* Make sure the netlink socket is non-blocking */  in set_fd_cloexec_nb()
79 		if (flags == -1) {  in set_fd_cloexec_nb()
81 			return -1;  in set_fd_cloexec_nb()
84 		if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {  in set_fd_cloexec_nb()
86 			return -1;  in set_fd_cloexec_nb()
101 	if (linux_netlink_socket == -1 && errno == EINVAL) {  in linux_netlink_start_event_monitor()
107 	if (linux_netlink_socket == -1) {  in linux_netlink_start_event_monitor()
113 	if (ret == -1)  in linux_netlink_start_event_monitor()
117 	if (ret == -1) {  in linux_netlink_start_event_monitor()
123 	if (ret == -1) {  in linux_netlink_start_event_monitor()
147 	linux_netlink_socket = -1;  in linux_netlink_start_event_monitor()
156 	assert(linux_netlink_socket != -1);  in linux_netlink_stop_event_monitor()
169 	linux_netlink_socket = -1;  in linux_netlink_stop_event_monitor()
188 /* parse parts of netlink message common to both libudev and the kernel */
203 		return -1;  in linux_netlink_parse()
208 		return -1;  in linux_netlink_parse()
215 		return -1;  in linux_netlink_parse()
222 		return -1;  in linux_netlink_parse()
230 			return -1;  in linux_netlink_parse()
235 			return -1;  in linux_netlink_parse()
240 			return -1;  in linux_netlink_parse()
247 			return -1;  in linux_netlink_parse()
250 		/* Parse a device path such as /dev/bus/usb/003/004 */  in linux_netlink_parse()
253 			return -1;  in linux_netlink_parse()
255 		*busnum = (uint8_t)(strtoul(slash - 3, NULL, 10) & 0xff);  in linux_netlink_parse()
258 			return -1;  in linux_netlink_parse()
264 			return -1;  in linux_netlink_parse()
272 		return -1;  in linux_netlink_parse()
302 	if (len == -1) {  in linux_netlink_read_message()
305 		return -1;  in linux_netlink_read_message()
310 		return -1;  in linux_netlink_read_message()
316 		return -1;  in linux_netlink_read_message()
320 	if (!cmsg || cmsg->cmsg_type != SCM_CREDENTIALS) {  in linux_netlink_read_message()
322 		return -1;  in linux_netlink_read_message()
326 	if (cred->uid != 0) {  in linux_netlink_read_message()
327 		usbi_dbg(NULL, "ignoring netlink message with non-zero sender UID %u", (unsigned int)cred->uid);  in linux_netlink_read_message()
328 		return -1;  in linux_netlink_read_message()
368 		r = poll(fds, 2, -1);  in linux_netlink_event_thread_main()
369 		if (r == -1) {  in linux_netlink_event_thread_main()