Also fixed some warnings and added check for target_len. Test: mma; emerge-peppy imgdiff; emerge-nyan imgdiff; sudo emerge imgdiff Bug: 26866274 Change-Id: Ifbcd3afd6701c769ccf626e33ed94461706f7ee6
Mostly trivial changes to make cpp compiler happy. Change-Id: I69bd1d96fcccf506007f6144faf37e11cfba1270