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-rw-r--r--plugins/hddtemp/hddtemp-plugin.c243
1 files changed, 243 insertions, 0 deletions
diff --git a/plugins/hddtemp/hddtemp-plugin.c b/plugins/hddtemp/hddtemp-plugin.c
new file mode 100644
index 0000000..1a33d75
--- /dev/null
+++ b/plugins/hddtemp/hddtemp-plugin.c
@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2005-2009 Alex Murray <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+
+#include "hddtemp-plugin.h"
+
+const gchar *plugin_name = "hddtemp";
+
+#define HDDTEMP_SERVER_IP_ADDRESS "127.0.0.1"
+#define HDDTEMP_PORT_NUMBER 7634
+#define HDDTEMP_OUTPUT_BUFFER_LENGTH 1024
+
+enum {
+ HDDTEMP_SOCKET_OPEN_ERROR,
+ HDDTEMP_SOCKET_CONNECT_ERROR,
+ HDDTEMP_GIOCHANNEL_ERROR,
+ HDDTEMP_GIOCHANNEL_READ_ERROR
+
+};
+
+static const gchar *hddtemp_plugin_query_hddtemp_daemon(GError **error) {
+ int sockfd;
+ ssize_t n = 1;
+ gboolean first_run = FALSE;
+ gint output_length = 0;
+ gchar *pc;
+
+ struct sockaddr_in address;
+ static char* buffer = NULL;
+ static GTimeVal previous_query_time;
+ GTimeVal current_query_time;
+
+ if (NULL == buffer) {
+ // initialise buffer and current time
+ buffer = g_new0(char, HDDTEMP_OUTPUT_BUFFER_LENGTH);
+ g_get_current_time(&previous_query_time);
+ first_run = TRUE;
+ }
+ g_get_current_time(&current_query_time);
+
+ /* only actually query if more than 60 seconds has elapsed as
+ hddtemp daemon will only actually send a new value if is > 60
+ seconds */
+ if (first_run || current_query_time.tv_sec - previous_query_time.tv_sec > 60) {
+ previous_query_time = current_query_time;
+
+ if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
+ // couldn't open socket
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, HDDTEMP_SOCKET_OPEN_ERROR, "Error opening socket for hddtemp");
+ return NULL;
+ }
+
+ address.sin_family = AF_INET;
+ address.sin_addr.s_addr = inet_addr(HDDTEMP_SERVER_IP_ADDRESS);
+ address.sin_port = htons(HDDTEMP_PORT_NUMBER);
+
+ if (connect(sockfd, (struct sockaddr *)&address, (socklen_t)sizeof(address)) == -1) {
+ g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, HDDTEMP_SOCKET_CONNECT_ERROR, "Error connecting to hddtemp daemon on port %i on %s", htons(HDDTEMP_PORT_NUMBER), HDDTEMP_SERVER_IP_ADDRESS);
+ return NULL;
+ }
+
+ pc = buffer;
+ while ((n = read(sockfd, pc, HDDTEMP_OUTPUT_BUFFER_LENGTH - output_length)) > 0) {
+ output_length += n;
+ pc = &pc[n];
+ }
+ /* terminate with pipe if not already terminated */
+ if (buffer[n - 1] != '|') {
+ buffer[n++] = '|';
+ }
+ /* always null terminate the end of the buffer
+ * regardless of how much stuff is in it already */
+ buffer[output_length] = '\0';
+ close(sockfd);
+ }
+
+ return buffer;
+}
+
+static void hddtemp_plugin_get_sensors(GList **sensors) {
+ GError *error = NULL;
+ const gchar *hddtemp_output;
+ gchar **output_vector = NULL, **pv;
+
+ hddtemp_output = hddtemp_plugin_query_hddtemp_daemon(&error);
+
+ if (error) {
+ g_error_free(error);
+ return;
+ }
+
+ if (hddtemp_output[0] != '|') {
+ g_debug("Error in format of string returned from hddtemp daemon: char at [0] should be \"|\", instead whole output is: \"%s\"", hddtemp_output);
+ return;
+ }
+
+ /* for each sensor the output will contain four strings ie
+ |/dev/hda|WDC WD800JB-00ETA0|32|C||/dev/hdb|???|ERR|*|
+ note the repetition -----^ */
+
+ /*
+
+ pv[0 + 5*n] empty
+ pv[1 + 5*n] device name
+ pv[2 + 5*n] disk label
+ pv[3 + 5*n] temperature
+ pv[4 + 5*n] unit
+ pv[5 + 5*n] empty
+
+ */
+
+ pv = output_vector = g_strsplit(hddtemp_output, "|", -1);
+
+ while(pv[1] != NULL) {
+ if (pv[2] != "" && pv [3] != "" && pv[4] != "" && (!(g_ascii_strcasecmp(pv[2], "???") == 0 || g_ascii_strcasecmp(pv[3], "ERR") == 0 || g_ascii_strcasecmp(pv[4], "*") == 0))) {
+ sensors_applet_plugin_add_sensor(sensors,
+ pv[1], // must be dynamically allocated
+ pv[1], // must be dynamically allocated
+ pv[2], // must be dynamically allocated
+ TEMP_SENSOR,
+ FALSE,
+ HDD_ICON,
+ DEFAULT_GRAPH_COLOR);
+ }
+ pv += 5;
+ }
+ g_strfreev(output_vector);
+
+}
+
+/* to be called to setup for hddtemp sensors */
+static GList *hddtemp_plugin_init(void) {
+ GList *sensors = NULL;
+ hddtemp_plugin_get_sensors(&sensors);
+ return sensors;
+}
+
+
+/* returns the value of the sensor_list at the given iter, or if an
+ error occurs, instatiates error with an error message */
+static gdouble hddtemp_plugin_get_sensor_value(const gchar *path,
+ const gchar *id,
+ SensorType type,
+ GError **error) {
+
+ const gchar *hddtemp_output;
+ gchar **output_vector = NULL, **pv;
+
+ gfloat sensor_value = -1.0f;
+
+ hddtemp_output = hddtemp_plugin_query_hddtemp_daemon(error);
+
+ if (*error) {
+ return sensor_value;
+ }
+
+ if (hddtemp_output[0] != '|') {
+ g_debug("Error in format of string returned from hddtemp daemon: char at [0] should be \"|\", instead whole output is: \"%s\"", hddtemp_output);
+ return sensor_value;
+ }
+
+ /* for each sensor the output will contain four strings ie
+ |/dev/hda|WDC WD800JB-00ETA0|32|C||/dev/hdb|???|ERR|*|
+ note the repetition -----^
+
+ pv[0 + 5*n] empty
+ pv[1 + 5*n] device name
+ pv[2 + 5*n] disk label
+ pv[3 + 5*n] temperature
+ pv[4 + 5*n] unit
+ pv[5 + 5*n] empty
+
+ */
+
+ pv = output_vector = g_strsplit(hddtemp_output, "|", -1);
+
+ while(pv[1] != NULL) {
+ if (g_ascii_strcasecmp(pv[1], path) == 0) {
+ sensor_value = (gfloat)(g_ascii_strtod(pv[3], NULL));
+
+ /* always return sensor values in celsius */
+ if (pv[4][0] == 'F') {
+ sensor_value = (sensor_value - 32.0) * 5.0 / 9.0;
+ }
+ break;
+ }
+ pv += 5;
+ }
+ g_strfreev(output_vector);
+
+ return (gdouble)sensor_value;
+}
+
+const gchar *sensors_applet_plugin_name(void)
+{
+ return plugin_name;
+}
+
+GList *sensors_applet_plugin_init(void)
+{
+ return hddtemp_plugin_init();
+}
+
+gdouble sensors_applet_plugin_get_sensor_value(const gchar *path,
+ const gchar *id,
+ SensorType type,
+ GError **error) {
+ return hddtemp_plugin_get_sensor_value(path, id, type, error);
+}