From: Alan T. DeKok <aland@freeradius.org>
Date: Wed, 17 Nov 2021 18:05:38 +0000 (-0500)
Subject: add rules for ip addresses, hostnames, and prefixes
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=304ba6a8f272b7b4514efc3fded56c1ac7cbf1d6;p=thirdparty%2Ffreeradius-server.git

add rules for ip addresses, hostnames, and prefixes
---

diff --git a/src/lib/util/sbuff.c b/src/lib/util/sbuff.c
index 6b55971e0d..14a02c5453 100644
--- a/src/lib/util/sbuff.c
+++ b/src/lib/util/sbuff.c
@@ -68,6 +68,21 @@ bool const sbuff_char_class_zero[UINT8_MAX + 1] = {
 	['0'] = true
 };
 
+/*
+ *	Anything which vaguely resembles an IP address, prefix, or host name.
+ */
+bool const sbuff_char_class_hostname[UINT8_MAX + 1] = {
+	SBUFF_CHAR_CLASS_ALPHA_NUM,
+	['.'] = true,		/* only for IPv4 and host names */
+	[':'] = true,		/* only for IPv6 numerical addresses */
+	['-'] = true,		/* only for host names */
+	['/'] = true,		/* only for prefixes */
+	['['] = true,		/* only for IPv6 numerical addresses */
+	[']'] = true,		/* only for IPv6 numerical addresses */
+	['_'] = true,		/* only for certain host name labels */
+	['*'] = true,		/* really only for ipv4 addresses */
+};
+
 bool const sbuff_char_class_hex[UINT8_MAX + 1] = { SBUFF_CHAR_CLASS_HEX };
 bool const sbuff_char_alpha_num[UINT8_MAX + 1] = { SBUFF_CHAR_CLASS_ALPHA_NUM };
 bool const sbuff_char_whitespace[UINT8_MAX + 1] = {
diff --git a/src/lib/util/sbuff.h b/src/lib/util/sbuff.h
index d675cb2c57..dee5033902 100644
--- a/src/lib/util/sbuff.h
+++ b/src/lib/util/sbuff.h
@@ -265,6 +265,7 @@ extern bool const sbuff_char_alpha_num[UINT8_MAX + 1];
 extern bool const sbuff_char_whitespace[UINT8_MAX + 1];
 extern bool const sbuff_char_line_endings[UINT8_MAX + 1];
 extern bool const sbuff_char_blank[UINT8_MAX + 1];
+extern bool const sbuff_char_class_hostname[UINT8_MAX + 1];
 
 /** Matches a-z,A-Z
  */