53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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This file is part of libcapwap.
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libcapwap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libcapwap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "capwap.h"
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#include <stdio.h>
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/*
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* for each capwap message element in msgelems call the callback function
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*/
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int cw_foreach_msgelem(uint8_t * msgelems, int len,
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int (*callback) (void *, int, uint8_t *, int),
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void *arg)
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{
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uint32_t val;
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int type;
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int elen;
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int i = 0;
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do {
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val = ntohl(*(uint32_t *) (msgelems + i));
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type = (val >> 16) & 0xFFFF;
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elen = val & 0xffff;
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if (i + elen + 4 > len) {
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printf("***************************************************************************\n");
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printf("Type: %d\n",type);
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printf("Bumm %d %d\n",i+elen+4,len);
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return 0;
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}
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callback(arg, type, msgelems + i + 4, elen);
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i += elen + 4;
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} while (i < len);
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return 1;
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}
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