From c6e9fc84c6a7213b31d9e2790ea36d42ee10e809 Mon Sep 17 00:00:00 2001
From: Arnaud Degroote <degroote@NetBSD.org>
Date: Sun, 6 Oct 2013 21:18:53 +0000
Subject: [PATCH] Add support for cpu temperature on NetBSD (using envsys(4))

---
 Makefile                    |  5 +++
 include/i3status.h          |  3 ++
 src/print_cpu_temperature.c | 89 +++++++++++++++++++++++++++++++++++++
 3 files changed, 97 insertions(+)

diff --git a/Makefile b/Makefile
index f454fe8..bef469a 100644
--- a/Makefile
+++ b/Makefile
@@ -47,6 +47,11 @@ CFLAGS+=-I/usr/pkg/include/
 LDFLAGS+=-L/usr/pkg/lib/
 endif
 
+ifeq ($(OS), NetBSD)
+LIBS+= -lprop
+endif
+
+
 V ?= 0
 ifeq ($(V),0)
 # Don’t print command lines which are run
diff --git a/include/i3status.h b/include/i3status.h
index 5d8d27b..d0361d1 100644
--- a/include/i3status.h
+++ b/include/i3status.h
@@ -33,6 +33,9 @@ enum { O_DZEN2, O_XMOBAR, O_I3BAR, O_TERM, O_NONE } output_format;
 #elif defined(__OpenBSD__)
 /* Default to acpitz(4) if no path is set. */
 #define THERMAL_ZONE "acpitz%d"
+#elif defined(__NetBSD__)
+/* Rely on envsys(4). The key of the sensor is generally cpu%d temperature */
+#define THERMAL_ZONE "cpu%d temperature"
 #endif
 
 #if defined(__FreeBSD_kernel__) && defined(__GLIBC__)
diff --git a/src/print_cpu_temperature.c b/src/print_cpu_temperature.c
index aefbcfb..8bd39a4 100644
--- a/src/print_cpu_temperature.c
+++ b/src/print_cpu_temperature.c
@@ -28,6 +28,15 @@
 #define MUKTOC(v) ((v - 273150000) / 1000000.0)
 #endif
 
+#if defined(__NetBSD__)
+#include <fcntl.h>
+#include <prop/proplib.h>
+#include <sys/envsys.h>
+
+#define MUKTOC(v) ((v - 273150000) / 1000000.0)
+#endif
+
+
 static char *thermal_zone;
 
 /*
@@ -135,7 +144,87 @@ void print_cpu_temperature_info(yajl_gen json_gen, char *buffer, int zone, const
                         }
                 }
         }
+#elif defined(__NetBSD__)
+        int fd, rval;
+        bool err = false;
+        prop_dictionary_t dict;
+        prop_array_t array;
+        prop_object_iterator_t iter;
+        prop_object_iterator_t iter2;
+        prop_object_t obj, obj2, obj3;
+
+        fd = open("/dev/sysmon", O_RDONLY);
+        if (fd == -1)
+                goto error;
+
+        rval = prop_dictionary_recv_ioctl(fd, ENVSYS_GETDICTIONARY, &dict);
+        if (rval == -1) {
+            err = true;
+            goto error_netbsd1;
+        }
+
+        /* No drivers registered? */
+        if (prop_dictionary_count(dict) == 0) {
+            err = true;
+            goto error_netbsd2;
+        }
+
+        /* print sensors for all devices registered */
+        iter = prop_dictionary_iterator(dict);
+        if (iter == NULL) {
+            err = true;
+            goto error_netbsd2;
+        }
+
+        /* iterate over the dictionary returned by the kernel */
+        while ((obj = prop_object_iterator_next(iter)) != NULL) {
+                array = prop_dictionary_get_keysym(dict, obj);
+                if (prop_object_type(array) != PROP_TYPE_ARRAY) {
+                    err = true;
+                    goto error_netbsd3;
+                }
+                iter2 = prop_array_iterator(array);
+                if (!iter2) {
+                    err = true;
+                    goto error_netbsd3;
+                }
+
+                /* iterate over the array of dictionaries */
+                while ((obj2 = prop_object_iterator_next(iter2)) != NULL) {
+                        obj3 = prop_dictionary_get(obj2, "description");
+                        if (obj3 &&
+                            strcmp(path, prop_string_cstring_nocopy(obj3)) == 0)
+                        {
+                                obj3 = prop_dictionary_get(obj2, "cur-value");
+                                float temp = MUKTOC(prop_number_integer_value(obj3));
+                                if ((int)temp >= max_threshold) {
+                                        START_COLOR("color_bad");
+                                        colorful_output = true;
+                                }
+
+                                outwalk += sprintf(outwalk, "%.2f", temp);
+
+                                if (colorful_output) {
+                                        END_COLOR;
+                                        colorful_output = false;
+                                }
+                                break;
+                        }
+
+                }
+                prop_object_iterator_release(iter2);
+        }
+error_netbsd3:
+        prop_object_iterator_release(iter);
+error_netbsd2:
+	prop_object_release(dict);
+error_netbsd1:
+        close(fd);
+        if (err) goto error;
+
 #endif
+
+
                         walk += strlen("degrees");
                 }
         }
-- 
2.39.5