diff options
Diffstat (limited to 'src/libudev/libudev-monitor.c')
| -rw-r--r-- | src/libudev/libudev-monitor.c | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/src/libudev/libudev-monitor.c b/src/libudev/libudev-monitor.c index d0486e3d1e..55965070b1 100644 --- a/src/libudev/libudev-monitor.c +++ b/src/libudev/libudev-monitor.c @@ -698,13 +698,20 @@ retry: int udev_monitor_send_device(struct udev_monitor *udev_monitor, struct udev_monitor *destination, struct udev_device *udev_device) { - const char *buf; - ssize_t blen; - ssize_t count; - struct msghdr smsg; - struct iovec iov[2]; - const char *val; - struct udev_monitor_netlink_header nlh; + const char *buf, *val; + ssize_t blen, count; + struct udev_monitor_netlink_header nlh = { + .prefix = "libudev", + .magic = htonl(UDEV_MONITOR_MAGIC), + .header_size = sizeof nlh, + }; + struct iovec iov[2] = { + { .iov_base = &nlh, .iov_len = sizeof nlh }, + }; + struct msghdr smsg = { + .msg_iov = iov, + .msg_iovlen = 2, + }; struct udev_list_entry *list_entry; uint64_t tag_bloom_bits; @@ -712,18 +719,13 @@ int udev_monitor_send_device(struct udev_monitor *udev_monitor, if (blen < 32) return -EINVAL; - /* add versioned header */ - memzero(&nlh, sizeof(struct udev_monitor_netlink_header)); - memcpy(nlh.prefix, "libudev", 8); - nlh.magic = htonl(UDEV_MONITOR_MAGIC); - nlh.header_size = sizeof(struct udev_monitor_netlink_header); + /* fill in versioned header */ val = udev_device_get_subsystem(udev_device); nlh.filter_subsystem_hash = htonl(util_string_hash32(val)); + val = udev_device_get_devtype(udev_device); if (val != NULL) nlh.filter_devtype_hash = htonl(util_string_hash32(val)); - iov[0].iov_base = &nlh; - iov[0].iov_len = sizeof(struct udev_monitor_netlink_header); /* add tag bloom filter */ tag_bloom_bits = 0; @@ -740,9 +742,6 @@ int udev_monitor_send_device(struct udev_monitor *udev_monitor, iov[1].iov_base = (char *)buf; iov[1].iov_len = blen; - memzero(&smsg, sizeof(struct msghdr)); - smsg.msg_iov = iov; - smsg.msg_iovlen = 2; /* * Use custom address for target, or the default one. * |