+
+/*
+ * int snlen(const char *)
+ *
+ * This takes a screen name and returns its length without
+ * spaces. If there are no spaces in the SN, then the
+ * return is equal to that of strlen().
+ *
+ */
+int aim_snlen(const char *sn)
+{
+ int i = 0;
+ const char *curPtr = NULL;
+
+ if (!sn)
+ return 0;
+
+ curPtr = sn;
+ while ( (*curPtr) != (char) NULL) {
+ if ((*curPtr) != ' ')
+ i++;
+ curPtr++;
+ }
+
+ return i;
+}
+
+/*
+ * int sncmp(const char *, const char *)
+ *
+ * This takes two screen names and compares them using the rules
+ * on screen names for AIM/AOL. Mainly, this means case and space
+ * insensitivity (all case differences and spacing differences are
+ * ignored).
+ *
+ * Return: 0 if equal
+ * non-0 if different
+ *
+ */
+
+int aim_sncmp(const char *sn1, const char *sn2)
+{
+ const char *curPtr1 = NULL, *curPtr2 = NULL;
+
+ if (aim_snlen(sn1) != aim_snlen(sn2))
+ return 1;
+
+ curPtr1 = sn1;
+ curPtr2 = sn2;
+ while ( (*curPtr1 != (char) NULL) && (*curPtr2 != (char) NULL) ) {
+ if ( (*curPtr1 == ' ') || (*curPtr2 == ' ') ) {
+ if (*curPtr1 == ' ')
+ curPtr1++;
+ if (*curPtr2 == ' ')
+ curPtr2++;
+ } else {
+ if ( toupper(*curPtr1) != toupper(*curPtr2))
+ return 1;
+ curPtr1++;
+ curPtr2++;
+ }
+ }
+
+ return 0;
+}