diff --git a/filesystem/filesystem.c b/filesystem/filesystem.c
index fe9244f0..4105d9b1 100644
--- a/filesystem/filesystem.c
+++ b/filesystem/filesystem.c
@@ -555,48 +555,16 @@ void FS_ClearSearchPath( void )
 	}
 }
 
-/*
-====================
-FS_CheckNastyPath
-Return true if the path should be rejected due to one of the following:
-1: path elements that are non-portable
-2: path elements that would allow access to files outside the game directory,
-	or are just not a good idea for a mod to be using.
-====================
-*/
 static int FS_CheckNastyPath( const char *path )
 {
 	// all: never allow an empty path, as for gamedir it would access the parent directory and a non-gamedir path it is just useless
-	if( COM_StringEmptyOrNULL( path )) return 2;
+	if( COM_StringEmptyOrNULL( path ))
+		return 2;
 
-	if( fs_ext_path ) return 0;     // allow any path
+	if( fs_ext_path )
+		return 0; // allow any path
 
-	// Mac: don't allow Mac-only filenames - : is a directory separator
-	// instead of /, but we rely on / working already, so there's no reason to
-	// support a Mac-only path
-	// Amiga and Windows: : tries to go to root of drive
-	if( Q_strchr( path, ':' )) return 1; // non-portable attempt to go to root of drive
-
-	// Amiga: // is parent directory
-	if( Q_strstr( path, "//")) return 1; // non-portable attempt to go to parent directory
-
-	// all: don't allow going to parent directory (../ or /../)
-	if( Q_strstr( path, "..")) return 2; // attempt to go outside the game directory
-
-	// Windows and UNIXes: don't allow absolute paths
-	if( path[0] == '/') return 2; // attempt to go outside the game directory
-
-#if 0
-	// all: forbid trailing slash on gamedir
-	if( isgamedir && path[Q_strlen(path)-1] == '/' ) return 2;
-#endif
-
-	// all: forbid leading dot on any filename for any reason
-	if( Q_strstr(path, "/.")) return 2; // attempt to go outside the game directory
-
-	// after all these checks we're pretty sure it's a / separated filename
-	// and won't do much if any harm
-	return false;
+	return COM_CheckNastyPath( path );
 }
 
 /*
diff --git a/public/crtlib.c b/public/crtlib.c
index 8be2e472..41359f2b 100644
--- a/public/crtlib.c
+++ b/public/crtlib.c
@@ -666,6 +666,48 @@ void COM_PathSlashFix( char *path )
 	}
 }
 
+/*
+====================
+COM_CheckNastyPath
+Return true if the path should be rejected due to one of the following:
+1: path elements that are non-portable
+2: path elements that would allow access to files outside the game directory,
+	or are just not a good idea for a mod to be using.
+====================
+*/
+int COM_CheckNastyPath( const char *path )
+{
+	// all: never allow an empty path, as for gamedir it would access the parent directory and a non-gamedir path it is just useless
+	if( COM_StringEmptyOrNULL( path )) return 2;
+
+	// Mac: don't allow Mac-only filenames - : is a directory separator
+	// instead of /, but we rely on / working already, so there's no reason to
+	// support a Mac-only path
+	// Amiga and Windows: : tries to go to root of drive
+	if( Q_strchr( path, ':' )) return 1; // non-portable attempt to go to root of drive
+
+	// Amiga: // is parent directory
+	if( Q_strstr( path, "//")) return 1; // non-portable attempt to go to parent directory
+
+	// all: don't allow going to parent directory (../ or /../)
+	if( Q_strstr( path, "..")) return 2; // attempt to go outside the game directory
+
+	// Windows and UNIXes: don't allow absolute paths
+	if( path[0] == '/') return 2; // attempt to go outside the game directory
+
+#if 0
+	// all: forbid trailing slash on gamedir
+	if( isgamedir && path[Q_strlen(path)-1] == '/' ) return 2;
+#endif
+
+	// all: forbid leading dot on any filename for any reason
+	if( Q_strstr(path, "/.")) return 2; // attempt to go outside the game directory
+
+	// after all these checks we're pretty sure it's a / separated filename
+	// and won't do much if any harm
+	return false;
+}
+
 /*
 ==============
 COM_IsSingleChar
diff --git a/public/crtlib.h b/public/crtlib.h
index ae87aced..ca849af4 100644
--- a/public/crtlib.h
+++ b/public/crtlib.h
@@ -122,6 +122,7 @@ void COM_StripExtension( char *path );
 void COM_RemoveLineFeed( char *str, size_t bufsize );
 void COM_PathSlashFix( char *path );
 void COM_TrimSpace( char *dst, const char *src, size_t size );
+int COM_CheckNastyPath( const char *path );
 
 // returns true on empty or NULL string, false otherwise
 #define COM_StringEmpty( string )       (( string )[0] ? false : true )