8aaf42ed0f
Slirp code tries to be smart an avoid data copy by using pointer to the data. This solution leads to unaligned access, in this case preq_addr, which is a 32-bit long structure. There is no real point of avoiding data copy in a such case, as the value itself is smaller or the same size as a pointer. The patch replaces pointers to the preq_addr structure by the strcture itself, and use the address 0.0.0.0 if no address has been requested (this is not a valid address in such a request). It compares it with htonl(0L) for correctness reasons, in case a code checker look for such mistakes. It also uses memcpy() for copying the data, which takes care of alignement issues. This fixes an unaligned access on IA64 host while requesting a DHCP address. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Read the documentation in qemu-doc.html. Fabrice Bellard.