renamed capwap directory to cw.

FossilOrigin-Name: 8a43dd9d05a4cb73210243ddd8df2a26f16c7ef2c4d4e36ab446de1f65d88223

src/cw/sock_create.c

@@ -0,0 +1,63 @@
+/*
+    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 <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+
+#include "sock.h"
+
+
+int sock_create(const struct sockaddr * sa)
+{
+	int sock;
+	int yes=1;
+	int salen;
+	/* determine length */
+	switch(sa->sa_family){
+		case AF_INET:
+			salen = sizeof(struct sockaddr_in);
+			break;
+		case AF_INET6:	
+			salen = sizeof(struct sockaddr_in6);
+			break;
+		default:
+			return -1;
+	}
+
+
+	/* bind a unicast address */
+	if((sock = socket(sa->sa_family, SOCK_DGRAM, 0)) < 0) {
+		return -1;
+	}	
+
+	/* reuse address */
+	if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes))){
+		return -1;
+	};
+
+	/* bind address */
+	if ( bind(sock,sa,salen) < 0) {
+		return -1;
+	}
+
+	return sock;
+}
+
+