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Moved the max seg and max apdu encode from npdu. Created decode and unit tests.

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This commit is contained in:
skarg
2005-03-17 19:16:08 +00:00
parent 167c54a72d
commit e96a9f7aa1
3 changed files with 128 additions and 71 deletions
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bacnet-stack/bacdcode.c
+94
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@@ -118,6 +118,77 @@ uint8_t encode_max_segs_max_apdu(int max_segs, int max_apdu)
return octet;
}
// from clause 20.1.2.4 max-segments-accepted
// and clause 20.1.2.5 max-APDU-length-accepted
// returns the encoded octet
int decode_max_segs(uint8_t octet)
{
int max_segs = 0;
switch (octet & 0xF0)
{
case 0:
max_segs = 0;
break;
case 0x10:
max_segs = 2;
break;
case 0x20:
max_segs = 4;
break;
case 0x30:
max_segs = 8;
break;
case 0x40:
max_segs = 16;
break;
case 0x50:
max_segs = 32;
break;
case 0x60:
max_segs = 64;
break;
case 0x70:
max_segs = 65;
break;
default:
break;
}
return max_segs;
}
int decode_max_apdu(uint8_t octet)
{
int max_apdu = 0;
switch (octet & 0x0F)
{
case 0:
max_apdu = 50;
break;
case 1:
max_apdu = 128;
break;
case 2:
max_apdu = 206;
break;
case 3:
max_apdu = 480;
break;
case 4:
max_apdu = 1024;
break;
case 5:
max_apdu = 1476;
break;
default:
break;
}
return max_apdu;
}
int encode_unsigned16(uint8_t * apdu, uint16_t value)
{
union {
@@ -1255,6 +1326,26 @@ void testBACDCodeObject(Test * pTest)
return;
}
void testBACDCodeMaxSegsApdu(Test * pTest)
{
int max_segs[8] = {0,2,4,8,16,32,64,65};
int max_apdu[6] = {50,128,206,480,1024,1476};
int i = 0;
int j = 0;
uint8_t octet = 0;
// test
for (i = 0; i < 8; i++)
{
for (j = 0; j < 6; j++)
{
octet = encode_max_segs_max_apdu(max_segs[i], max_apdu[j]);
ct_test(pTest, max_segs[i] == decode_max_segs(octet));
ct_test(pTest, max_apdu[j] == decode_max_apdu(octet));
}
}
}
#ifdef TEST_DECODE
int main(void)
{
@@ -1277,6 +1368,9 @@ int main(void)
assert(rc);
rc = ct_addTestFunction(pTest, testBACDCodeObject);
assert(rc);
rc = ct_addTestFunction(pTest, testBACDCodeMaxSegsApdu);
assert(rc);
// configure output
ct_setStream(pTest, stdout);
ct_run(pTest);
(void) ct_report(pTest);