Added temperature watchdog for CPU on linux using sysfs

include/ext_sysfs_cpu.h

@@ -0,0 +1,37 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#ifndef _EXT_SYSFS_CPU_H
+#define _EXT_SYSFS_CPU_H
+
+#include <stdbool.h>
+
+static const char SYSFS_HWMON[] = "/sys/class/hwmon";
+
+static const char SENSOR_CORETEMP[] = "coretemp";
+static const char SENSOR_K10TEMP[]  = "k10temp";
+static const char SENSOR_K8TEMP[]   = "k8temp";
+static const char SENSOR_ACPITZ[]   = "acpitz";
+
+typedef int HM_ADAPTER_SYSFS_CPU;
+
+typedef void *SYSFS_CPU_LIB;
+
+typedef struct hm_sysfs_cpu_lib
+{
+  // currently not using libudev, because it can only read values, not set them, so using /sys instead
+
+  SYSFS_CPU_LIB lib;
+
+} hm_sysfs_cpu_lib_t;
+
+typedef hm_sysfs_cpu_lib_t SYSFS_CPU_PTR;
+
+bool sysfs_cpu_init (void *hashcat_ctx);
+void sysfs_cpu_close (void *hashcat_ctx);
+char *hm_SYSFS_CPU_get_syspath_hwmon ();
+int hm_SYSFS_CPU_get_temperature_current (void *hashcat_ctx, int *val);
+
+#endif // _EXT_SYSFS_CPU_H