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7u83@mail.ru
2014-07-11 20:12:11 +00:00
parent 3234327f71
commit 2bae9358d7
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46
src/capwap/cw_foreach_msgelem.c Normal file
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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 cw_foreach_msgelem(uint8_t * msgelems, int len,
int (*callback)(void*,int,uint8_t*,int),void *arg )
{
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) {
return 0;
}
callback(arg,type,msgelems+i+4,elen);
i+=elen+4;
} while (i<len);
return 1;
}