38     char buf[1024];  in die()  local
39     vsnprintf(buf, sizeof(buf), msg, args);  in die()
43         strlcat(buf, ": ", sizeof(buf));  in die()
44         strlcat(buf, strerror(err), sizeof(buf));  in die()
47     fprintf(stderr, "%s\n", buf);  in die()
48     ALOGE("%s\n", buf);  in die()
101     char buf[HEADER_SIZE];  in main()  local
102     memset(buf, 0, headerlen);  in main()
103     int wrote = mtd_write_data(out, buf, headerlen);  in main()
107     while ((len = TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf)))) > 0) {  in main()
108         wrote = mtd_write_data(out, buf, len);  in main()
134         len = TEMP_FAILURE_RETRY(read(fd, buf, left > (int)sizeof(buf) ? (int)sizeof(buf) : left));  in main()
136         if (mtd_write_data(out, buf, len) != len)  in main()