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fix armv5 alignment issues

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This commit is contained in:
Christian Hammerl
2014-07-31 01:05:10 +02:00
parent 3ef85aae38
commit 52b0ee7ceb
14 changed files with 279 additions and 149 deletions
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17
src/utils.cpp
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@@ -218,13 +218,22 @@ std::string to_string(PDU::PDUType pduType) {
uint32_t do_checksum(const uint8_t *start, const uint8_t *end) {
uint32_t checksum(0);
uint16_t *ptr = (uint16_t*)start, *last = (uint16_t*)end, padding(0);
const uint8_t *last = end;
uint16_t buffer = 0;
uint16_t padding = 0;
const uint8_t *ptr = start;
if(((end - start) & 1) == 1) {
last = (uint16_t*)end - 1;
last = end - 1;
padding = *(end - 1) << 8;
}
while(ptr < last)
checksum += Endian::host_to_be(*(ptr++));
while(ptr < last) {
memcpy(&buffer, ptr, sizeof(uint16_t));
checksum += Endian::host_to_be(buffer);
ptr += sizeof(uint16_t);
}
return checksum + padding;
}