-static char *hddtemp_query_daemon (void)
-{
- int fd;
- ssize_t status;
-
- char *buffer;
- int buffer_size;
- int buffer_fill;
- char *new_buffer;
-
- const char *host;
- const char *port;
-
- struct addrinfo *ai_list;
- int ai_return;
-
- host = hddtemp_host;
- if (host == NULL)
- host = HDDTEMP_DEF_HOST;
-
- port = hddtemp_port;
- if (strlen (port) == 0)
- port = HDDTEMP_DEF_PORT;
-
- struct addrinfo ai_hints = {
- .ai_flags = AI_ADDRCONFIG,
- .ai_family = AF_UNSPEC,
- .ai_protocol = IPPROTO_TCP,
- .ai_socktype = SOCK_STREAM
- };
-
- if ((ai_return = getaddrinfo (host, port, &ai_hints, &ai_list)) != 0)
- {
- char errbuf[1024];
- ERROR ("hddtemp plugin: getaddrinfo (%s, %s): %s",
- host, port,
- (ai_return == EAI_SYSTEM)
- ? sstrerror (errno, errbuf, sizeof (errbuf))
- : gai_strerror (ai_return));
- return (NULL);
- }
-
- fd = -1;
- for (struct addrinfo *ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
- {
- /* create our socket descriptor */
- fd = socket (ai_ptr->ai_family, ai_ptr->ai_socktype,
- ai_ptr->ai_protocol);
- if (fd < 0)
- {
- char errbuf[1024];
- ERROR ("hddtemp plugin: socket: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- continue;
- }
-
- /* connect to the hddtemp daemon */
- if (connect (fd, (struct sockaddr *) ai_ptr->ai_addr,
- ai_ptr->ai_addrlen))
- {
- char errbuf[1024];
- INFO ("hddtemp plugin: connect (%s, %s) failed: %s",
- host, port,
- sstrerror (errno, errbuf, sizeof (errbuf)));
- close (fd);
- fd = -1;
- continue;
- }
-
- /* A socket could be opened and connecting succeeded. We're
- * done. */
- break;
- }
-
- freeaddrinfo (ai_list);
-
- if (fd < 0)
- {
- ERROR ("hddtemp plugin: Could not connect to daemon.");
- return (NULL);
- }
-
- /* receive data from the hddtemp daemon */
- buffer = NULL;
- buffer_size = 0;
- buffer_fill = 0;
- while (1)
- {
- if ((buffer_size == 0) || (buffer_fill >= buffer_size - 1))
- {
- if (buffer_size == 0)
- buffer_size = 1024;
- else
- buffer_size *= 2;
- if (buffer_size > HDDTEMP_MAX_RECV_BUF)
- {
- WARNING ("hddtemp plugin: Message from hddtemp has been "
- "truncated.");
- break;
- }
- new_buffer = realloc (buffer, buffer_size);
- if (new_buffer == NULL) {
- close (fd);
- free (buffer);
- ERROR ("hddtemp plugin: Allocation failed.");
- return (NULL);
- }
- buffer = new_buffer;
- }
- status = read (fd, buffer + buffer_fill, buffer_size - buffer_fill - 1);
- if (status == 0) {
- break;
- }
- else if (status == -1)
- {
- char errbuf[1024];
-
- if ((errno == EAGAIN) || (errno == EINTR))
- continue;
-
- ERROR ("hddtemp plugin: Error reading from socket: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- close (fd);
- free (buffer);
- return (NULL);
- }
- buffer_fill += status;
- }
-
- if (buffer_fill == 0)
- {
- WARNING ("hddtemp plugin: Peer has unexpectedly shut down "
- "the socket. Buffer: `%s'", buffer);
- close (fd);
- free (buffer);
- return (NULL);
- }
-
- assert (buffer_fill < buffer_size);
- buffer[buffer_fill] = '\0';
- close (fd);
- return (buffer);
+static char *hddtemp_query_daemon(void) {
+ int fd;
+ ssize_t status;
+
+ char *buffer;
+ int buffer_size;
+ int buffer_fill;
+ char *new_buffer;
+
+ const char *host;
+ const char *port;
+
+ struct addrinfo *ai_list;
+ int ai_return;
+
+ host = hddtemp_host;
+ if (host == NULL)
+ host = HDDTEMP_DEF_HOST;
+
+ port = hddtemp_port;
+ if (strlen(port) == 0)
+ port = HDDTEMP_DEF_PORT;
+
+ struct addrinfo ai_hints = {.ai_flags = AI_ADDRCONFIG,
+ .ai_family = AF_UNSPEC,
+ .ai_protocol = IPPROTO_TCP,
+ .ai_socktype = SOCK_STREAM};
+
+ if ((ai_return = getaddrinfo(host, port, &ai_hints, &ai_list)) != 0) {
+ ERROR("hddtemp plugin: getaddrinfo (%s, %s): %s", host, port,
+ (ai_return == EAI_SYSTEM) ? STRERRNO : gai_strerror(ai_return));
+ return NULL;
+ }
+
+ fd = -1;
+ for (struct addrinfo *ai_ptr = ai_list; ai_ptr != NULL;
+ ai_ptr = ai_ptr->ai_next) {
+ /* create our socket descriptor */
+ fd = socket(ai_ptr->ai_family, ai_ptr->ai_socktype, ai_ptr->ai_protocol);
+ if (fd < 0) {
+ ERROR("hddtemp plugin: socket: %s", STRERRNO);
+ continue;
+ }
+
+ /* connect to the hddtemp daemon */
+ if (connect(fd, (struct sockaddr *)ai_ptr->ai_addr, ai_ptr->ai_addrlen)) {
+ INFO("hddtemp plugin: connect (%s, %s) failed: %s", host, port, STRERRNO);
+ close(fd);
+ fd = -1;
+ continue;
+ }
+
+ /* A socket could be opened and connecting succeeded. We're
+ * done. */
+ break;
+ }
+
+ freeaddrinfo(ai_list);
+
+ if (fd < 0) {
+ ERROR("hddtemp plugin: Could not connect to daemon.");
+ return NULL;
+ }
+
+ /* receive data from the hddtemp daemon */
+ buffer = NULL;
+ buffer_size = 0;
+ buffer_fill = 0;
+ while (1) {
+ if ((buffer_size == 0) || (buffer_fill >= buffer_size - 1)) {
+ if (buffer_size == 0)
+ buffer_size = 1024;
+ else
+ buffer_size *= 2;
+ if (buffer_size > HDDTEMP_MAX_RECV_BUF) {
+ WARNING("hddtemp plugin: Message from hddtemp has been "
+ "truncated.");
+ break;
+ }
+ new_buffer = realloc(buffer, buffer_size);
+ if (new_buffer == NULL) {
+ close(fd);
+ free(buffer);
+ ERROR("hddtemp plugin: Allocation failed.");
+ return NULL;
+ }
+ buffer = new_buffer;
+ }
+ status = read(fd, buffer + buffer_fill, buffer_size - buffer_fill - 1);
+ if (status == 0) {
+ break;
+ } else if (status == -1) {
+
+ if ((errno == EAGAIN) || (errno == EINTR))
+ continue;
+
+ ERROR("hddtemp plugin: Error reading from socket: %s", STRERRNO);
+ close(fd);
+ free(buffer);
+ return NULL;
+ }
+ buffer_fill += status;
+ }
+
+ if (buffer_fill == 0) {
+ WARNING("hddtemp plugin: Peer has unexpectedly shut down "
+ "the socket. Buffer: `%s'",
+ buffer);
+ close(fd);
+ free(buffer);
+ return NULL;
+ }
+
+ assert(buffer_fill < buffer_size);
+ buffer[buffer_fill] = '\0';
+ close(fd);
+ return buffer;