Files
bacnet_stack/src/bacnet/whois.c
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Steve Karg c3a4c229fe Issue 87 execute tests with GitHub ci (#234)
* Enable lcov coverage in unit testing via cmake.

* fix pipeline build error

* add compile options for unit test to silence some warnings

* remove all BAC_TEST unit tests in src/bacnet/ folder. They are now in test/bacnet/ folders using ztest.

* removed key.c - only used for unit test.

* produce XML test result output for parsing

* produce junit XML test result output

* change lint workflow to quality

* update readme badge for quality results

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
2022-02-28 20:09:46 -06:00

123 lines
4.3 KiB
C

/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2005 Steve Karg
This program 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 2
of the License, or (at your option) any later version.
This program 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 this program; if not, write to:
The Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#include <stdint.h>
#include "bacnet/bacenum.h"
#include "bacnet/bacdcode.h"
#include "bacnet/bacdef.h"
#include "bacnet/whois.h"
/** @file whois.c Encode/Decode Who-Is requests */
/* encode I-Am service - use -1 for limit if you want unlimited */
int whois_encode_apdu(uint8_t *apdu, int32_t low_limit, int32_t high_limit)
{
int len = 0; /* length of each encoding */
int apdu_len = 0; /* total length of the apdu, return value */
if (apdu) {
apdu[0] = PDU_TYPE_UNCONFIRMED_SERVICE_REQUEST;
apdu[1] = SERVICE_UNCONFIRMED_WHO_IS; /* service choice */
apdu_len = 2;
/* optional limits - must be used as a pair */
if ((low_limit >= 0) && (low_limit <= BACNET_MAX_INSTANCE) &&
(high_limit >= 0) && (high_limit <= BACNET_MAX_INSTANCE)) {
len = encode_context_unsigned(&apdu[apdu_len], 0, low_limit);
apdu_len += len;
len = encode_context_unsigned(&apdu[apdu_len], 1, high_limit);
apdu_len += len;
}
}
return apdu_len;
}
/* decode the service request only */
int whois_decode_service_request(
uint8_t *apdu, unsigned apdu_len, int32_t *pLow_limit, int32_t *pHigh_limit)
{
unsigned int len = 0;
uint8_t tag_number = 0;
uint32_t len_value = 0;
BACNET_UNSIGNED_INTEGER unsigned_value = 0;
/* optional limits - must be used as a pair */
if (apdu_len) {
len += decode_tag_number_and_value(&apdu[len], &tag_number, &len_value);
if (tag_number != 0) {
return BACNET_STATUS_ERROR;
}
if (apdu_len > (unsigned)len) {
len += decode_unsigned(&apdu[len], len_value, &unsigned_value);
if (unsigned_value <= BACNET_MAX_INSTANCE) {
if (pLow_limit) {
*pLow_limit = (int32_t)unsigned_value;
}
}
if (apdu_len > (unsigned)len) {
len += decode_tag_number_and_value(
&apdu[len], &tag_number, &len_value);
if (tag_number != 1) {
return BACNET_STATUS_ERROR;
}
if (apdu_len > (unsigned)len) {
len +=
decode_unsigned(&apdu[len], len_value, &unsigned_value);
if (unsigned_value <= BACNET_MAX_INSTANCE) {
if (pHigh_limit) {
*pHigh_limit = (int32_t)unsigned_value;
;
}
}
} else {
return BACNET_STATUS_ERROR;
}
} else {
return BACNET_STATUS_ERROR;
}
} else {
return BACNET_STATUS_ERROR;
}
} else {
if (pLow_limit) {
*pLow_limit = -1;
}
if (pHigh_limit) {
*pHigh_limit = -1;
}
len = 0;
}
return (int)len;
}