1 files changed, 99 insertions, 0 deletions
diff --git a/src/libstrongswan/networking/streams/stream_tcp.c b/src/libstrongswan/networking/streams/stream_tcp.c
new file mode 100644
index 000000000..5459145a0
--- /dev/null
+++ b/src/libstrongswan/networking/streams/stream_tcp.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2013 Martin Willi
+ * Copyright (C) 2013 revosec AG
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#include <library.h>
+#include <errno.h>
+#include <unistd.h>
+#include <limits.h>
+
+#include "stream_tcp.h"
+
+/**
+ * See header.
+ */
+int stream_parse_uri_tcp(char *uri, struct sockaddr *addr)
+{
+	char *pos, buf[128];
+	host_t *host;
+	u_long port;
+	int len;
+
+	if (!strpfx(uri, "tcp://"))
+	{
+		return -1;
+	}
+	uri += strlen("tcp://");
+	pos = strrchr(uri, ':');
+	if (!pos)
+	{
+		return -1;
+	}
+	if (*uri == '[' && pos > uri && *(pos - 1) == ']')
+	{
+		/* IPv6 URI */
+		snprintf(buf, sizeof(buf), "%.*s", (int)(pos - uri - 2), uri + 1);
+	}
+	else
+	{
+		snprintf(buf, sizeof(buf), "%.*s", (int)(pos - uri), uri);
+	}
+	port = strtoul(pos + 1, &pos, 10);
+	if (port == ULONG_MAX || *pos || port > 65535)
+	{
+		return -1;
+	}
+	host = host_create_from_dns(buf, AF_UNSPEC, port);
+	if (!host)
+	{
+		return -1;
+	}
+	len = *host->get_sockaddr_len(host);
+	memcpy(addr, host->get_sockaddr(host), len);
+	host->destroy(host);
+	return len;
+}
+
+/**
+ * See header
+ */
+stream_t *stream_create_tcp(char *uri)
+{
+	union {
+		struct sockaddr_in in;
+		struct sockaddr_in6 in6;
+		struct sockaddr sa;
+	} addr;
+	int fd, len;
+
+	len = stream_parse_uri_tcp(uri, &addr.sa);
+	if (len == -1)
+	{
+		DBG1(DBG_NET, "invalid stream URI: '%s'", uri);
+		return NULL;
+	}
+	fd = socket(addr.sa.sa_family, SOCK_STREAM, 0);
+	if (fd < 0)
+	{
+		DBG1(DBG_NET, "opening socket '%s' failed: %s", uri, strerror(errno));
+		return NULL;
+	}
+	if (connect(fd, &addr.sa, len))
+	{
+		DBG1(DBG_NET, "connecting to '%s' failed: %s", uri, strerror(errno));
+		close(fd);
+		return NULL;
+	}
+	return stream_create_from_fd(fd);
+}