X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=miscutil.c;fp=miscutil.c;h=fe0cd9b53fc921d4dbc317a1c950259f54cb8e31;hp=831f3c5d60f2a2c51ada6c6343b5e3d719f9f66f;hb=6d67d8973b484f5a781fd46a04dc2410b769f970;hpb=1547dac5126fa35db78b737af31f3c2044173881

diff --git a/miscutil.c b/miscutil.c
index 831f3c5d..fe0cd9b5 100644
--- a/miscutil.c
+++ b/miscutil.c
@@ -1002,6 +1002,49 @@ time_t timegm(struct tm *tm)
 #endif /* !defined(HAVE_TIMEGM) && defined(HAVE_TZSET) && defined(HAVE_PUTENV) */
 
 
+/*********************************************************************
+ *
+ * Function    :  host_is_ip_address
+ *
+ * Description :  Checks whether or not a host is specified by
+ *                IP address. Does not actually validate the
+ *                address.
+ *
+ * Parameters  :
+ *          1  :  host = The host name to check
+ *
+ * Returns     :   1 => Yes
+ *                 0 => No
+ *
+ *********************************************************************/
+extern int host_is_ip_address(const char *host)
+{
+   const char *p;
+
+   if (NULL != strstr(host, ":"))
+   {
+      /* Assume an IPv6 address. */
+      return 1;
+   }
+
+   for (p = host; *p; p++)
+   {
+      if ((*p != '.') && !privoxy_isdigit(*p))
+      {
+         /* Not a dot or digit so it can't be an IPv4 address. */
+         return 0;
+      }
+   }
+
+   /*
+    * Host only consists of dots and digits so
+    * assume that is an IPv4 address.
+    */
+   return 1;
+
+}
+
+
 /*
   Local Variables:
   tab-width: 3