Initial commit

FossilOrigin-Name: c53d95729c009f8f80a7d63847cef7668ff73f8af0523ab65f7734696f85399c

src/capwap/process_msgelems.c

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+/*
+    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 "capwap.h"
+
+/*
+ * for each capwap message element in msgelems call the callback function
+ */
+int process_msgelems(uint8_t * msgelems,  int len,
+		int (*callback)(void*,int,uint8_t*,int),void *arg )
+{
+//	printf("NUNU %08X\n",msgelems);
+
+	uint32_t val;
+	int type;
+	int elen;
+	int i=0;
+	do {
+		val = ntohl(*(uint32_t*)(msgelems+i));
+		type=(val>>16) & 0xFFFF;
+		elen = val & 0xffff;
+		if (i+elen+4>len) {
+//			printf("Error AAA");
+//			exit(88);
+			return 0;
+		}
+			
+		callback(arg,type,msgelems+i+4,elen);
+//		process_joinmsgelem(wtpman,msgelems+i+4,type,elen);
+//		printf("type %d, len %d\n",type,elen);
+		i+=elen+4;
+//		printf("I %d, len %d\n",i,len);
+
+	} while (i<len);
+	return 1;
+}
+
+