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Fixed buges with huge values (> 32 bit)

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This commit is contained in:
Stefan Wahren 2012-04-06 18:25:18 +02:00
parent 4e3f358a8a
commit 013da483f8
2 changed files with 40 additions and 10 deletions

47
mbus/mbus-protocol.c

@ -353,10 +353,10 @@ mbus_data_bcd_encode(u_char *bcd_data, size_t bcd_data_size, int value)
/// Decode BCD data
///
//------------------------------------------------------------------------------
long
long long
mbus_data_bcd_decode(u_char *bcd_data, size_t bcd_data_size)
{
long val = 0;
long long val = 0;
size_t i;
if (bcd_data)
@ -416,6 +416,34 @@ mbus_data_long_decode(u_char *int_data, size_t int_data_size)
return -1;
}
long long
mbus_data_long_long_decode(u_char *int_data, size_t int_data_size)
{
long long val = 0;
size_t i;
if (int_data)
{
for (i = int_data_size; i > 0; i--)
{
if (int_data_size == 6)
{
printf("%s: %lld %02X\n", __PRETTY_FUNCTION__, val, int_data[i-1]);
}
val = (val << 8) + int_data[i-1];
}
if (int_data_size == 6)
{
printf("%s: %lld\n", __PRETTY_FUNCTION__, val);
}
return val;
}
return -1;
}
//------------------------------------------------------------------------------
///
/// Encode INTEGER data (into 'int_data_size' bytes)
@ -1675,6 +1703,7 @@ mbus_data_record_decode(mbus_data_record *record)
int val;
long val2;
float val3;
long long val4;
struct tm time;
switch (record->drh.dib.dif & 0x0F)
@ -1772,9 +1801,9 @@ mbus_data_record_decode(mbus_data_record *record)
case 0x06: // 6 byte integer (48 bit)
val2 = mbus_data_long_decode(record->data, 6);
val4 = mbus_data_long_long_decode(record->data, 6);
snprintf(buff, sizeof(buff), "%lu", val2);
snprintf(buff, sizeof(buff), "%lld", val4);
if (debug)
printf("%s: DIF 0x%.2x was decoded using 6 byte integer\n", __PRETTY_FUNCTION__, record->drh.dib.dif);
@ -1783,9 +1812,9 @@ mbus_data_record_decode(mbus_data_record *record)
case 0x07: // 8 byte integer (64 bit)
val2 = mbus_data_long_decode(record->data, 8);
val4 = mbus_data_long_long_decode(record->data, 8);
snprintf(buff, sizeof(buff), "%lu", val2);
snprintf(buff, sizeof(buff), "%lld", val4);
if (debug)
printf("%s: DIF 0x%.2x was decoded using 8 byte integer\n", __PRETTY_FUNCTION__, record->drh.dib.dif);
@ -1836,8 +1865,8 @@ mbus_data_record_decode(mbus_data_record *record)
case 0x0E: // 12 digit BCD (48 bit)
val2 = mbus_data_bcd_decode(record->data, 6);
snprintf(buff, sizeof(buff), "%lu", val2);
val4 = mbus_data_bcd_decode(record->data, 6);
snprintf(buff, sizeof(buff), "%lld", val4);
if (debug)
printf("%s: DIF 0x%.2x was decoded using 12 digit BCD\n", __PRETTY_FUNCTION__, record->drh.dib.dif);
@ -2553,7 +2582,7 @@ mbus_data_variable_header_print(mbus_data_variable_header *header)
{
if (header)
{
printf("%s: ID = %lu\n", __PRETTY_FUNCTION__,
printf("%s: ID = %lld\n", __PRETTY_FUNCTION__,
mbus_data_bcd_decode(header->id_bcd, 4));
printf("%s: Manufacturer = 0x%.2X%.2X\n", __PRETTY_FUNCTION__,

3
mbus/mbus-protocol.h

@ -508,9 +508,10 @@ const char *mbus_decode_manufacturer(u_char byte1, u_char byte2);
int mbus_data_bcd_encode(u_char *bcd_data, size_t bcd_data_size, int value);
int mbus_data_int_encode(u_char *int_data, size_t int_data_size, int value);
long mbus_data_bcd_decode(u_char *bcd_data, size_t bcd_data_size);
long long mbus_data_bcd_decode(u_char *bcd_data, size_t bcd_data_size);
int mbus_data_int_decode(u_char *int_data, size_t int_data_size);
long mbus_data_long_decode(u_char *int_data, size_t int_data_size);
long long mbus_data_long_long_decode(u_char *int_data, size_t int_data_size);
float mbus_data_float_decode(u_char *float_data);