--- sourceforge.net/trunk/seamlessrdp/ServerExe/vchannel.c	2006/03/10 09:12:36	1091
+++ sourceforge.net/trunk/seamlessrdp/ServerExe/vchannel.c	2006/03/10 16:40:57	1113
@@ -32,6 +32,9 @@
 
 #define CHANNELNAME "seamrdp"
 
+#define INVALID_CHARS ","
+#define REPLACEMENT_CHAR '_'
+
 static HANDLE g_mutex = NULL;
 static HANDLE g_vchannel = NULL;
 
@@ -47,6 +50,8 @@
 	_vsnprintf(buf + sizeof("DEBUG,") - 1, sizeof(buf) - sizeof("DEBUG,") + 1, format, argp);
 	va_end(argp);
 
+	vchannel_strfilter(buf + sizeof("DEBUG,"));
+
 	vchannel_write(buf);
 }
 
@@ -202,3 +207,17 @@
 {
 	ReleaseMutex(g_mutex);
 }
+
+const char *
+vchannel_strfilter(char *string)
+{
+	char *c;
+
+	for (c = string; *c != '\0'; c++)
+	{
+		if ((*c < 0x20) || (strchr(INVALID_CHARS, *c) != NULL))
+			*c = REPLACEMENT_CHAR;
+	}
+
+	return string;
+}