Fix invalid brain session id calculation and move sorting functions to shared.c

src/shared.c

@@ -97,6 +97,22 @@ static const char *HASH_CATEGORY_OTP_STR                    = "One-Time Password
 static const char *HASH_CATEGORY_PLAIN_STR                  = "Plaintext";
 static const char *HASH_CATEGORY_FRAMEWORK_STR              = "Framework";
 
+int sort_by_string (const void *p1, const void *p2)
+{
+  const char *s1 = (const char *) p1;
+  const char *s2 = (const char *) p2;
+
+  return strcmp (s1, s2);
+}
+
+int sort_by_stringptr (const void *p1, const void *p2)
+{
+  const char* const *s1 = (const char* const *) p1;
+  const char* const *s2 = (const char* const *) p2;
+
+  return strcmp (*s1, *s2);
+}
+
 static inline int get_msb32 (const u32 v)
 {
   int i;