From 569cb3dbbfb854038f9ebcdb5a5374e1de6ec9c0 Mon Sep 17 00:00:00 2001
From: Berke Viktor <berkeviktor@aol.com>
Date: Wed, 18 Jan 2012 09:25:05 +0100
Subject: add Non-BMP plugin against GTK+ exploits

---
 plugins/makefile.mak        |  4 +++
 plugins/nonbmp/makefile.mak | 18 ++++++++++
 plugins/nonbmp/nonbmp.c     | 87 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 109 insertions(+)
 create mode 100644 plugins/nonbmp/makefile.mak
 create mode 100644 plugins/nonbmp/nonbmp.c

(limited to 'plugins')

diff --git a/plugins/makefile.mak b/plugins/makefile.mak
index b692c41f..6a44e34d 100644
--- a/plugins/makefile.mak
+++ b/plugins/makefile.mak
@@ -13,6 +13,8 @@ all:
 	@-$(MAKE) /nologo /s /f makefile.mak $@
 	@cd ..\mpcinfo
 	@-$(MAKE) /nologo /s /f makefile.mak $@
+	@cd ..\nonbmp
+	@-$(MAKE) /nologo /s /f makefile.mak $@
 	@cd ..\python
 	@-$(MAKE) /nologo /s /f makefile.mak $@
 	@cd ..\tcl
@@ -45,6 +47,8 @@ clean:
 	@-$(MAKE) /nologo /s /f makefile.mak clean $@
 	@cd ..\mpcinfo
 	@-$(MAKE) /nologo /s /f makefile.mak clean $@
+	@cd ..\nonbmp
+	@-$(MAKE) /nologo /s /f makefile.mak clean $@
 	@cd ..\python
 	@-$(MAKE) /nologo /s /f makefile.mak clean $@
 	@cd ..\tcl
diff --git a/plugins/nonbmp/makefile.mak b/plugins/nonbmp/makefile.mak
new file mode 100644
index 00000000..1c28610d
--- /dev/null
+++ b/plugins/nonbmp/makefile.mak
@@ -0,0 +1,18 @@
+include "..\..\src\makeinc.mak"
+
+all: nonbmp.obj nonbmp.def
+	link $(LDFLAGS) $(LIBS) /dll /out:xcnonbmp.dll /def:nonbmp.def nonbmp.obj
+
+nonbmp.def:
+	echo EXPORTS > nonbmp.def
+	echo xchat_plugin_init >> nonbmp.def
+	echo xchat_plugin_deinit >> nonbmp.def
+
+nonbmp.obj: nonbmp.c makefile.mak
+	cl $(CFLAGS) $(GLIB) /I.. nonbmp.c
+
+clean:
+	del *.obj
+	del *.dll
+	del *.exp
+	del *.lib
diff --git a/plugins/nonbmp/nonbmp.c b/plugins/nonbmp/nonbmp.c
new file mode 100644
index 00000000..fe9571b7
--- /dev/null
+++ b/plugins/nonbmp/nonbmp.c
@@ -0,0 +1,87 @@
+#include <stdlib.h>
+#include <glib.h>
+#include <string.h>
+
+#include "xchat-plugin.h"
+
+static xchat_plugin *ph;
+static const char name[] = "Non-BMP";
+static const char desc[] = "Replace non-BMP characters with replacment characters";
+static const char version[] = "1.0000";
+static int recursing = 0;
+
+static int filter(
+	char *word[],
+	char *word_eol[],
+	void *unused
+) {
+	gunichar *line;
+	gchar *utf8_line;
+	glong length;
+	glong index;
+
+	if( recursing ) {
+		return XCHAT_EAT_NONE;
+	}
+
+	/* the input has already been checked so we can use the _fast version */
+	line = g_utf8_to_ucs4_fast(
+		(char *)word_eol[1],
+		-1, /* NUL terminated input */
+		&length
+	);
+	
+	for( index = 0; index < length; index++ ) {
+		if( line[ index ] > 0xFFFF ) {
+			line[ index ] = 0xFFFD; /* replacement character */
+		}
+	}
+
+	utf8_line = g_ucs4_to_utf8(
+		line,
+		-1, /* NUL terminated input */
+		NULL, /* items read */
+		NULL, /* items written */
+		NULL  /* ignore conversion error */
+	);
+
+	if( utf8_line == NULL ) {
+		/* conversion failed ... I guess we are screwed? */
+		g_free( line );
+		return XCHAT_EAT_NONE;
+	}
+
+	recursing = 1;
+	xchat_commandf( ph, "RECV %s", utf8_line );
+	recursing = 0;
+
+	g_free( line );
+	g_free( utf8_line );
+	return XCHAT_EAT_ALL;
+}
+
+int xchat_plugin_init(
+	xchat_plugin *plugin_handle,
+	char **plugin_name,
+	char **plugin_desc,
+	char **plugin_version,
+	char *arg 
+) {
+/*	int index = 0;*/
+
+	ph = plugin_handle;
+	*plugin_name = name;
+	*plugin_desc = desc;
+	*plugin_version = version;
+
+	xchat_hook_server( ph, "RAW LINE", XCHAT_PRI_HIGHEST, filter, (void *)NULL );
+	xchat_printf (ph, "%s plugin loaded\n", name);
+	return 1;
+}
+
+int
+xchat_plugin_deinit (void)
+{
+	xchat_printf (ph, "%s plugin unloaded\n", name);
+	return 1;
+}
\ No newline at end of file
-- 
cgit 1.4.1