1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* Copyright (C) 2005-2009 Alex Murray <murray.alex@gmail.com>
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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 <unistd.h>
#include <glib.h>
#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(¤t_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 (g_strcmp0(pv[2], "") && g_strcmp0(pv[3], "") && g_strcmp0(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);
}
|
