1 files changed, 73 insertions, 0 deletions
diff --git a/components/temperature.c b/components/temperature.c
new file mode 100755
index 0000000..7cf1394
--- /dev/null
+++ b/components/temperature.c
@@ -0,0 +1,73 @@
+/* See LICENSE file for copyright and license details. */
+#include <stddef.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+
+#if defined(__linux__)
+	#include <stdint.h>
+
+	const char *
+	temp(const char *file)
+	{
+		uintmax_t temp;
+
+		if (pscanf(file, "%ju", &temp) != 1)
+			return NULL;
+
+		return bprintf("%ju", temp / 1000);
+	}
+#elif defined(__OpenBSD__)
+	#include <stdio.h>
+	#include <sys/time.h> /* before <sys/sensors.h> for struct timeval */
+	#include <sys/sensors.h>
+	#include <sys/sysctl.h>
+
+	const char *
+	temp(const char *unused)
+	{
+		int mib[5];
+		size_t size;
+		struct sensor temp;
+
+		mib[0] = CTL_HW;
+		mib[1] = HW_SENSORS;
+		mib[2] = 0; /* cpu0 */
+		mib[3] = SENSOR_TEMP;
+		mib[4] = 0; /* temp0 */
+
+		size = sizeof(temp);
+
+		if (sysctl(mib, 5, &temp, &size, NULL, 0) < 0) {
+			warn("sysctl 'SENSOR_TEMP':");
+			return NULL;
+		}
+
+		/* kelvin to celsius */
+		return bprintf("%d", (int)((float)(temp.value-273150000) / 1E6));
+	}
+#elif defined(__FreeBSD__)
+	#include <stdio.h>
+	#include <stdlib.h>
+	#include <sys/sysctl.h>
+
+	#define ACPI_TEMP "hw.acpi.thermal.%s.temperature"
+
+	const char *
+	temp(const char *zone)
+	{
+		char buf[256];
+		int temp;
+		size_t len;
+
+		len = sizeof(temp);
+		snprintf(buf, sizeof(buf), ACPI_TEMP, zone);
+		if (sysctlbyname(buf, &temp, &len, NULL, 0) < 0
+				|| !len)
+			return NULL;
+
+		/* kelvin to decimal celcius */
+		return bprintf("%d.%d", (temp - 2731) / 10, abs((temp - 2731) % 10));
+	}
+#endif