From 6d2eaf548d092826017d96443b54d656f05676cf Mon Sep 17 00:00:00 2001
From: netblue30 <netblue30@yahoo.com>
Date: Sat, 1 Oct 2016 16:25:36 -0400
Subject: moved libx11 to libconnect

---
 src/libconnect/libconnect.c | 66 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 src/libconnect/libconnect.c

(limited to 'src/libconnect/libconnect.c')

diff --git a/src/libconnect/libconnect.c b/src/libconnect/libconnect.c
new file mode 100644
index 000000000..18c4d81f5
--- /dev/null
+++ b/src/libconnect/libconnect.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2014-2016 Firejail Authors
+ *
+ * This file is part of firejail project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dlfcn.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/un.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <errno.h>
+
+//#define DEBUG
+
+//static int check_sockaddr(int sockfd, const char *call, const struct sockaddr *addr, int rv) {
+static int check_sockaddr(const struct sockaddr *addr) {
+	if (addr->sa_family == AF_UNIX) {
+		struct sockaddr_un *a = (struct sockaddr_un *) addr;
+		if (a->sun_path[0] == '\0' && strstr(a->sun_path + 1, "X11-unix")) {
+//			printf("@%s\n", a->sun_path + 1);
+			errno = ENOENT;
+			return -1;
+		}
+	}
+	
+	return 0;
+}
+
+//
+// syscalls
+//
+
+// connect
+typedef int (*orig_connect_t)(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
+static orig_connect_t orig_connect = NULL;
+int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen) {
+	if (!orig_connect)
+		orig_connect = (orig_connect_t)dlsym(RTLD_NEXT, "connect");
+			
+	if (check_sockaddr(addr) == -1)
+		return -1;
+		
+ 	return orig_connect(sockfd, addr, addrlen);
+}
-- 
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