renamed capwap directory to cw.

FossilOrigin-Name: 8a43dd9d05a4cb73210243ddd8df2a26f16c7ef2c4d4e36ab446de1f65d88223

src/cw/conn_q_recv_packet.c

@@ -0,0 +1,71 @@
+/*
+    This file is part of libcapwap.
+
+    libcapwap 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 3 of the License, or
+    (at your option) any later version.
+
+    libcapwap 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "conn.h"
+
+static int conn_q_recv_packet_(struct conn * conn, uint8_t * buffer,int len,int peek)
+{
+	if ( !conn->cur_packet)
+	{
+		if ((conn->cur_packet = conn_q_get_packet(conn)) == 0){
+			errno = EAGAIN;
+			return -1;
+		}
+		conn->cur_packet_len = *((uint32_t*)conn->cur_packet);
+		conn->cur_packet_pos=4;
+	}
+
+	if (conn->cur_packet_len > len )
+	{
+		memcpy(buffer,conn->cur_packet+conn->cur_packet_pos,len);
+		if (peek)
+			return len;
+
+		conn->cur_packet_pos+=len;
+		conn->cur_packet_len-=len;
+		if (conn->cur_packet_len==0){
+			free(conn->cur_packet);
+			conn->cur_packet=0;
+		}	
+		return len;
+	}
+
+	memcpy(buffer,conn->cur_packet+conn->cur_packet_pos,conn->cur_packet_len);
+	if (peek)
+		return conn->cur_packet_len;
+
+	free (conn->cur_packet);
+	conn->cur_packet=0;
+	return conn->cur_packet_len;	
+}
+
+int conn_q_recv_packet(struct conn * conn, uint8_t * buffer,int len)
+{
+	return conn_q_recv_packet_(conn,buffer,len,0);
+}
+
+int conn_q_recv_packet_peek(struct conn * conn, uint8_t * buffer,int len)
+{
+	return conn_q_recv_packet_(conn,buffer,len,1);
+}
+
+