Changes in lib/misc.c [b097945:fca4683]

File:

• lib/misc.c (modified) (2 diffs)

lib/misc.c

@@ -1 @@
-  /********************************************************************\
+/********************************************************************\
   * BitlBee -- An IRC to other IM-networks gateway                     *
   *                                                                    *
@@ -335 +335 @@
 }
 
+/* Wrap an IPv4 address into IPv6 space. Not thread-safe... */
+char *ipv6_wrap(char *src)
+{
+        static char dst[64];
+        int i;
+
+        for (i = 0; src[i]; i++) {
+                if ((src[i] < '0' || src[i] > '9') && src[i] != '.') {
+                        break;
+                }
+        }
+
+        /* Hmm, it's not even an IP... */
+        if (src[i]) {
+                return src;
+        }
+
+        g_snprintf(dst, sizeof(dst), "::ffff:%s", src);
+
+        return dst;
+}
+
+/* Unwrap an IPv4 address into IPv6 space. Thread-safe, because it's very simple. :-) */
+char *ipv6_unwrap(char *src)
+{
+        int i;
+
+        if (g_strncasecmp(src, "::ffff:", 7) != 0) {
+                return src;
+        }
+
+        for (i = 7; src[i]; i++) {
+                if ((src[i] < '0' || src[i] > '9') && src[i] != '.') {
+                        break;
+                }
+        }
+
+        /* Hmm, it's not even an IP... */
+        if (src[i]) {
+                return src;
+        }
+
+        return (src + 7);
+}
+
 /* Convert from one charset to another.