--- /dev/null
+
+#include<stdio.h>
+#include<string.h>
+#include<ctype.h>
+
+
+
+/* -------------- CH_INT -------------- */
+int ch_int_v6(char * data)
+{
+int count;
+int ret = 0;
+int max = (int)strlen(data);
+
+for(count = 0; count < max; count++){
+ switch((int)data[count]){
+ case '0': ret = 0; break;
+ case '1': ret = 0; break;
+ case '2': ret = 0; break;
+ case '3': ret = 0; break;
+ case '4': ret = 0; break;
+ case '5': ret = 0; break;
+ case '6': ret = 0; break;
+ case '7': ret = 0; break;
+ case '8': ret = 0; break;
+ case '9': ret = 0; break;
+ case 'a': ret = 0; break;
+ case 'b': ret = 0; break;
+ case 'c': ret = 0; break;
+ case 'd': ret = 0; break;
+ case 'e': ret = 0; break;
+ case 'f': ret = 0; break;
+ case 'A': ret = 0; break;
+ case 'B': ret = 0; break;
+ case 'C': ret = 0; break;
+ case 'D': ret = 0; break;
+ case 'E': ret = 0; break;
+ case 'F': ret = 0; break;
+ case ':': ret = 0; break;
+ default : ret = -1; break;
+ }
+ if(ret == -1){
+ return ret;
+ }
+ }
+
+return ret;
+}
+
+
+
+
+