prepare buffer

src/Makefile

@@ -5,8 +5,8 @@ LDFLAGS=-lwiringPi -lconfig
 
 INST_DIR=/opt/sbin
 
-REFCNT:=$(shell git rev-list --all --count) 
+REFCNT := $(shell git rev-list --all --count) 
-VERSION:=$(shell cat VERSION)
+VERSION := $(shell git rev-parse --short=8 HEAD)
 
 .PHONY: all
 all:	counter

src/sinkSender.c

@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include <string.h>
 #include "sinkSender.h"
 #include "logging.h"
 #include "led.h"
@@ -23,6 +24,8 @@ const char *sharedSecret;
 static t_minuteBuffer minuteBuffer;
 static uint32_t secondOfMinute;
 
+extern char VERSION[];
+
 
 void sinkSenderInit(config_t *pCfg) {
   if (! config_lookup_string(pCfg, SINKSERVER_KEY, &sinkServer)) {
@@ -54,9 +57,29 @@ void sinkSenderPut(uint32_t seconds, uint32_t frequency) {
     minuteBuffer.s.timestamp = seconds;
   }
   minuteBuffer.s.frequency[secondOfMinute] = frequency;
+  secondOfMinute += 1;
+
+  if (secondOfMinute == SECONDS_PER_MINUTE) {
+    logmsg(LOG_DEBUG, "minute is full");
+
+    minuteBuffer->s.totalRunningHours = 0;
+    minuteBuffer->s.totalPowercycles = 0;
+    minuteBuffer->s.totalWatchdogResets = 0;
+    minuteBuffer->s.version = strtol(VERSION, NULL, 16);
+
+    memset(minuteBuffer->s.deviceId, 0, sizeof(minuteBuffer->s.deviceId));
+    strcpy(minuteBuffer->s.deviceId, config->deviceId);
+
+    memcpy(minuteBuffer->s.hash, config->sharedSecret, SHA256_BLOCK_SIZE);
+    SHA256_CTX ctx;
+    sha256_init(&ctx);
+    sha256_update(&ctx, minuteBuffer->b, sizeof(minuteBuffer->b));
+    sha256_final(&ctx, minuteBuffer->s.hash);
 
     
 
+  }
+
 
   led(E_GREEN, true);
 }