--- libaitwww/src/tools.c	2012/03/10 00:26:49	1.2
+++ libaitwww/src/tools.c	2012/07/31 23:08:40	1.2.6.3
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: tools.c,v 1.2 2012/03/10 00:26:49 misho Exp $
+* $Id: tools.c,v 1.2.6.3 2012/07/31 23:08:40 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -44,9 +44,15 @@ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF TH
 SUCH DAMAGE.
 */
 #include "global.h"
-#include "tools.h"
 
 
+/*
+ * www_cmp() - Compare two string
+ *
+ * @ct = content text from www
+ * @s = string
+ * return: 0 are equal or !0 are different
+ */
 int
 www_cmp(const char *ct, const char *s)
 {
@@ -54,12 +60,12 @@ www_cmp(const char *ct, const char *s)
 
 	assert(ct && s);
 
-	while (isspace(*ct))
+	while (isspace((int) *ct))
 		ct++;
 
 	if (!(sc = strchr(ct, ';')))
 		sc = strchr(ct, '\x0');
-	while (isspace(*(sc - 1)))
+	while (isspace((int) *(sc - 1)))
 		sc--;
 
 	if (strlen(s) != sc - ct)
@@ -67,6 +73,13 @@ www_cmp(const char *ct, const char *s)
 	return strncasecmp(ct, s, sc - ct);
 }
 
+/*
+ * www_cmptype() - Compare context type
+ *
+ * @ct = content text from www
+ * @type = content type
+ * return: 0 are equal or !0 are different
+ */
 int
 www_cmptype(const char *ct, const char *type)
 {
@@ -74,7 +87,7 @@ www_cmptype(const char *ct, const char *type)
 
 	assert(ct && type);
 
-	while (isspace(*ct))
+	while (isspace((int) *ct))
 		ct++;
 
 	if (!(sl = strchr(ct, '/')))
@@ -85,33 +98,45 @@ www_cmptype(const char *ct, const char *type)
 	return strncasecmp(ct, type, sl - ct);
 }
 
-char *
+/*
+ * www_getpair() - Get AV pair from WWW query string
+ *
+ * @str = query string
+ * @delim = delimiter
+ * return: NULL error or AV pair, must be io_free() after use!
+ */
+ait_val_t *
 www_getpair(char ** __restrict str, const char *delim)
 {
-	char *tr, *s = NULL;
+	char *tr;
 	int cx;
+	ait_val_t *s;
 
 	assert(str && *str && delim);
 
-	cx = strcspn(*str, delim);
-	tr = *str + cx;
-
-	s = malloc(cx + 1);
+	s = io_allocVar();
 	if (!s) {
-		LOGERR;
+		www_SetErr(io_GetErrno(), "%s", io_GetError());
 		return NULL;
-	} else {
-		strncpy(s, *str, cx);
-		s[cx] = 0;
 	}
 
-	*str = tr;
-	if (**str)
-		(*str)++;
+	cx = strcspn(*str, delim);
+	tr = *str + cx;
+	if (*tr)
+		*tr++ = 0;
 
+	AIT_SET_STR(s, *str);
+
+	*str = tr;
 	return s;
 }
 
+/*
+ * www_x2c() - Hex from string to digit
+ *
+ * @str = string
+ * return: digit
+ */
 inline char
 www_x2c(const char *str)
 {
@@ -126,6 +151,12 @@ www_x2c(const char *str)
 	return digit;
 }
 
+/*
+ * www_unescape() - Unescape/decode WWW query string to host string
+ *
+ * @str = string
+ * return: none
+ */
 inline void
 www_unescape(char * __restrict str)
 {