From 3555423633e1accae18bd804b4c4f9cd69ad33e9 Mon Sep 17 00:00:00 2001
From: brain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Wed, 13 Apr 2005 17:22:46 +0000
Subject: Added IsValidHostMask

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@1078 e03df62e-2008-0410-955e-edbf42e46eb7
---
 include/modules.h |  3 +++
 src/modules.cpp   | 28 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/include/modules.h b/include/modules.h
index 0e8a6a865..a7a42991e 100644
--- a/include/modules.h
+++ b/include/modules.h
@@ -774,6 +774,9 @@ class Server : public classbase
 	 */
 	virtual long CalcDuration(std::string duration);
 
+	/** Returns true if a nick!ident@host string is correctly formatted, false if otherwise.
+	 */
+	virtual bool IsValidMask(std::string mask);
 };
 
 #define CONF_NOT_A_NUMBER	0x000010
diff --git a/src/modules.cpp b/src/modules.cpp
index 1bed5bd18..3d4972a2d 100644
--- a/src/modules.cpp
+++ b/src/modules.cpp
@@ -671,6 +671,34 @@ long Server::CalcDuration(std::string delta)
 	return duration(delta.c_str());
 }
 
+bool Server::IsValidMask(std::string mask)
+{
+	const char* dest = mask.c_str();
+        if (strchr(dest,'!')==0)
+                return false;
+        if (strchr(dest,'@')==0)
+                return false;
+        for (int i = 0; i < strlen(dest); i++)
+                if (dest[i] < 32)
+                        return false;
+        for (int i = 0; i < strlen(dest); i++)
+                if (dest[i] > 126)
+                        return false;
+        int c = 0;
+        for (int i = 0; i < strlen(dest); i++)
+                if (dest[i] == '!')
+                        c++;
+        if (c>1)
+                return false;
+        c = 0;
+        for (int i = 0; i < strlen(dest); i++)
+                if (dest[i] == '@')
+                        c++;
+        if (c>1)
+                return false;
+
+	return true;
+}
 
 ConfigReader::ConfigReader()
 {
-- 
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