--- libaitio/src/Attic/tools.c	2011/05/17 19:49:55	1.4.4.2
+++ libaitio/src/Attic/tools.c	2011/10/31 13:53:51	1.6
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: tools.c,v 1.4.4.2 2011/05/17 19:49:55 misho Exp $
+* $Id: tools.c,v 1.6 2011/10/31 13:53:51 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -239,3 +239,111 @@ io_CopyEnv(const char **oldenv)
 	return newenv;
 }
 
+/*
+ * io_ExecArgs() Build exec arguments from other array
+ * @psProg = Program name for execute
+ * @oldarg = Arguments array
+ * return: NULL error; !=NULL Allocated execution array(must be free)
+*/
+char **
+io_ExecArgs(const char *psProg, const char **oldarg)
+{
+	char **newarg, **el;
+	register int i, num;
+
+	if (!psProg || !oldarg)
+		return NULL;
+	else
+		newarg = el = NULL;
+
+	/* count items arguments */
+	for (num = 0; oldarg[num]; num++);
+
+	/* create and copy new arguments */
+	newarg = calloc(num + 2, sizeof(char*));
+	if (!newarg) {
+		LOGERR;
+		return NULL;
+	} else
+		el = newarg;
+
+	*el = strdup(psProg);
+	el++;
+
+	for (i = 0; oldarg[i]; i++, el++)
+		*el = strdup(oldarg[i]);
+	*el = NULL;
+
+	return newarg;
+}
+
+/*
+ * io_FreeNullTerm() Free dynamic allocated null terminated array with strings
+ * @arr = Pointer to array for free
+ * return: none
+*/
+inline void
+io_FreeNullTerm(char *** __restrict arr)
+{
+	char **a;
+
+	if (arr && *arr) {
+		a = *arr;
+		while (a && *a)
+			free(*a++);
+		free(*arr);
+		*arr = NULL;
+	}
+}
+
+/*
+ * io_ether_ntoa() Convert ethernet address to string
+ * @n = ethernet address structure, like struct ether_addr
+ * @a = string
+ * @len = string length
+ * return: NULL error or !=NULL string a
+ */
+inline char *
+io_ether_ntoa(const struct io_ether_addr *n, char * __restrict a, int len)
+{
+	if (!n || !a)
+		return NULL;
+
+	memset(a, 0, len);
+	if (snprintf(a, len, "%02x:%02x:%02x:%02x:%02x:%02x", 
+			n->ether_addr_octet[0], n->ether_addr_octet[1], 
+			n->ether_addr_octet[2], n->ether_addr_octet[3], 
+			n->ether_addr_octet[4], n->ether_addr_octet[5]) < 17)
+		return NULL;
+
+	return a;
+}
+
+/*
+ * io_ether_aton() Convert string to ethernet address
+ * @a = string
+ * @e = ethernet address structure, like struct ether_addr
+ * return: NULL error or !=NULL ethernet address structure
+ */
+inline struct io_ether_addr *
+io_ether_aton(const char *a, struct io_ether_addr *e)
+{                       
+	int i;
+	u_int o0, o1, o2, o3, o4, o5;
+
+	if (!a || !e)
+		return NULL;
+
+	i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o0, &o1, &o2, &o3, &o4, &o5);
+	if (i != 6)
+		return NULL;
+
+	e->ether_addr_octet[0] = o0;
+	e->ether_addr_octet[1] = o1;
+	e->ether_addr_octet[2] = o2;
+	e->ether_addr_octet[3] = o3;
+	e->ether_addr_octet[4] = o4;
+	e->ether_addr_octet[5] = o5;
+
+	return e;
+}