r = name_to_handle_at(AT_FDCWD, "/dev", &h.handle, &mount_id, 0);
if (r < 0) {
if (errno != EOPNOTSUPP)
- log_debug("name_to_handle_at on /dev: %m");
+ log_debug_errno(errno, "name_to_handle_at on /dev: %m");
return false;
}
if (fd < 0) {
udev_monitor->sock = socket(PF_NETLINK, SOCK_RAW|SOCK_CLOEXEC|SOCK_NONBLOCK, NETLINK_KOBJECT_UEVENT);
if (udev_monitor->sock == -1) {
- log_debug("error getting socket: %m");
+ log_debug_errno(errno, "error getting socket: %m");
free(udev_monitor);
return NULL;
}
if (err == 0)
udev_monitor->snl.nl.nl_pid = snl.nl.nl_pid;
} else {
- log_debug("bind failed: %m");
+ log_debug_errno(errno, "bind failed: %m");
return -errno;
}
/* enable receiving of sender credentials */
err = setsockopt(udev_monitor->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
if (err < 0)
- log_debug("setting SO_PASSCRED failed: %m");
+ log_debug_errno(errno, "setting SO_PASSCRED failed: %m");
return 0;
}
struct cmsghdr *cmsg;
union sockaddr_union snl;
struct ucred *cred;
- char buf[8192];
+ union {
+ struct udev_monitor_netlink_header nlh;
+ char raw[8192];
+ } buf;
ssize_t buflen;
ssize_t bufpos;
if (udev_device == NULL)
return NULL;
- if (memcmp(buf, "libudev", 8) == 0) {
- struct udev_monitor_netlink_header *nlh;
-
+ if (memcmp(buf.raw, "libudev", 8) == 0) {
/* udev message needs proper version magic */
- nlh = (struct udev_monitor_netlink_header *) buf;
- if (nlh->magic != htonl(UDEV_MONITOR_MAGIC)) {
+ if (buf.nlh.magic != htonl(UDEV_MONITOR_MAGIC)) {
log_debug("unrecognized message signature (%x != %x)",
- nlh->magic, htonl(UDEV_MONITOR_MAGIC));
+ buf.nlh.magic, htonl(UDEV_MONITOR_MAGIC));
udev_device_unref(udev_device);
return NULL;
}
- if (nlh->properties_off+32 > (size_t)buflen) {
+ if (buf.nlh.properties_off+32 > (size_t)buflen) {
udev_device_unref(udev_device);
return NULL;
}
- bufpos = nlh->properties_off;
+ bufpos = buf.nlh.properties_off;
/* devices received from udev are always initialized */
udev_device_set_is_initialized(udev_device);
} else {
/* kernel message with header */
- bufpos = strlen(buf) + 1;
+ bufpos = strlen(buf.raw) + 1;
if ((size_t)bufpos < sizeof("a@/d") || bufpos >= buflen) {
log_debug("invalid message length");
udev_device_unref(udev_device);
}
/* check message header */
- if (strstr(buf, "@/") == NULL) {
+ if (strstr(buf.raw, "@/") == NULL) {
log_debug("unrecognized message header");
udev_device_unref(udev_device);
return NULL;
char *key;
size_t keylen;
- key = &buf[bufpos];
+ key = &buf.raw[bufpos];
keylen = strlen(key);
if (keylen == 0)
break;