853 int imgdiff(int argc, const char** argv) {  in imgdiff()  argument
856   if (argc >= 2 && strcmp(argv[1], "-z") == 0) {  in imgdiff()
859     ++argv;  in imgdiff()
863   if (argc >= 3 && strcmp(argv[1], "-b") == 0) {  in imgdiff()
864     android::base::unique_fd fd(open(argv[2], O_RDONLY));  in imgdiff()
866       printf("failed to open bonus file %s: %s\n", argv[2], strerror(errno));  in imgdiff()
871       printf("failed to stat bonus file %s: %s\n", argv[2], strerror(errno));  in imgdiff()
878       printf("failed to read bonus file %s: %s\n", argv[2], strerror(errno));  in imgdiff()
883     argv += 2;  in imgdiff()
888             argv[0]);  in imgdiff()
898     if (!ReadZip(argv[1], &src_chunks, &src_file, true)) {  in imgdiff()
902     if (!ReadZip(argv[2], &tgt_chunks, &tgt_file, false)) {  in imgdiff()
907     if (!ReadImage(argv[1], &src_chunks, &src_file)) {  in imgdiff()
911     if (!ReadImage(argv[2], &tgt_chunks, &tgt_file)) {  in imgdiff()
1059   android::base::unique_fd patch_fd(open(argv[3], O_CREAT | O_WRONLY | O_TRUNC, S_IRUSR | S_IWUSR));  in imgdiff()
1061     printf("failed to open \"%s\": %s\n", argv[3], strerror(errno));  in imgdiff()
1067     printf("failed to write \"IMGDIFF2\" to \"%s\": %s\n", argv[3], strerror(errno));  in imgdiff()