*
* Function : hash_string
*
- * Description : Take a string and compute a (hopefuly) unique numeric
+ * Description : Take a string and compute a (hopefully) unique numeric
* integer value. This is useful to "switch" a string.
*
* Parameters :
* 1 : string = string to be duplicated
* 2 : len = number of bytes to duplicate
*
- * Returns : pointer to copy, or NULL if failiure
+ * Returns : pointer to copy, or NULL if failure
*
*********************************************************************/
char *bindup(const char *string, size_t len)
#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;
+
+}
+
+
/*
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