diff -r 3ec477cda546 -r 78e9d5234d15 brewco/util.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/brewco/util.c	Sat Dec 05 21:46:22 2015 +0100
@@ -0,0 +1,110 @@
+/*****************************************************************************
+ * Copyright (C) 2015
+ *   
+ * Michiel Broek <mbroek at mbse dot eu>
+ *
+ * This file is part of the mbsePi-apps
+ *
+ * This 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, or (at your option) any
+ * later version.
+ *
+ * mbsePi-apps 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 ThermFerm; see the file COPYING.  If not, write to the Free
+ * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *****************************************************************************/
+
+#include "brewco.h"
+#include "util.h"
+
+
+/*
+ * Make directory tree, the name must end with a /
+ */
+int mkdirs(char *name, mode_t mode)
+{
+    char	buf[PATH_MAX], *p, *q;
+    int		last = 0, oldmask;
+
+    memset(&buf, 0, sizeof(buf));
+    strncpy(buf, name, sizeof(buf)-1);
+    buf[sizeof(buf)-1] = '\0';
+
+    p = buf+1;
+
+    oldmask = umask(000);
+    while ((q = strchr(p, '/'))) {
+	*q = '\0';
+	mkdir(buf, mode);
+	last = errno;
+	*q = '/';
+	p = q+1;
+    }
+
+    umask(oldmask);
+											
+    if ((last == 0) || (last == EEXIST)) {
+	return TRUE;
+    } else {
+	syslog(LOG_NOTICE, "mkdirs(%s)", name);
+	return FALSE;
+    }
+}
+
+
+
+/*
+ * Test if the given file exists. The second option is:
+ * R_OK - test for Read rights 
+ * W_OK - test for Write rights
+ * X_OK - test for eXecute rights
+ * F_OK - test file presence only
+ */ 
+int file_exist(char *path, int mode)
+{
+    if (access(path, mode) != 0)
+	return errno;
+
+    return 0;
+}
+
+
+
+long millis(void)
+{
+    struct timespec	now;
+
+    clock_gettime(CLOCK_REALTIME , &now);
+    return ((now.tv_sec * 1000000000) + now.tv_nsec) / 1000000;
+}
+
+
+
+/* From ArdBir */
+float Arrotonda025(float Num){
+    // Appoggio la parte intera
+    int Appoggio= (int)Num;
+
+    // Arrotondo il valore con peso 0.25
+    return Appoggio+(int)((Num-Appoggio)*1000/225)*0.25;
+}
+
+float ConvertiCtoF(float Num){        
+    Num = Num/16;              // Recupero il valore
+    Num = (Num*1.8)+32;          // Converto in °F
+    Num = Arrotonda025(Num);
+    return Num*16;              // Preparo il valore per la registrazione
+}
+float ConvertiFtoC(float Num){
+    Num = Num/16;              // Recupero il valore
+    Num = (Num-32)/1.8;            // Converto in °C
+    Num = Arrotonda025(Num);
+    return Num*16;              // Preparo il valore per la registrazione
+}
+