static void
unpack_rkfw(const char *path, uint8_t *buf, uint32_t size)
{
uint32_t ioff, isize;
char rpath[PATH_MAX];
printf("VERSION:%d.%d.%d\n", buf[8], buf[7], buf[6]);
printf("\nunpacking\n");
ioff = 0;
isize = buf[4];
snprintf(rpath, sizeof(rpath), "%s-HEAD", path);
printf("%08x-%08x %s %d bytes\n", ioff, ioff + isize - 1, rpath, isize);
write_image(rpath, &buf[ioff], isize);
ioff = buf[0x19] | buf[0x1a] << 8 | buf[0x1b] << 16 | buf[0x1c] << 24;
isize = buf[0x1d] | buf[0x1e] << 8 | buf[0x1f] << 16 | buf[0x20] << 24;
if (memcmp(&buf[ioff], "BOOT", 4) != 0)
errx(EXIT_FAILURE, "no BOOT signature");
snprintf(rpath, sizeof(rpath), "%s-BOOT", path);
printf("%08x-%08x %s %d bytes\n", ioff, ioff + isize - 1, rpath, isize);
write_image(rpath, &buf[ioff], isize);
ioff = buf[0x21] | buf[0x22] << 8 | buf[0x23] << 16 | buf[0x24] << 24;
isize = buf[0x25] | buf[0x26] << 8 | buf[0x27] << 16 | buf[0x28] << 24;
if (memcmp(&buf[ioff], "RKAF", 4) != 0)
errx(EXIT_FAILURE, "no RKAF signature");
printf("%08x-%08x update.img %d bytes\n", ioff, ioff + isize - 1,
isize);
write_image("update.img", &buf[ioff], isize);
printf("\nunpacking update.img\n");
printf("================================================================================\n");
unpack_rkaf("update.img", &buf[ioff], isize);
printf("================================================================================\n\n");
if (size - (ioff + isize) != 32)
errx(EXIT_FAILURE, "invalid MD5 length");
snprintf(rpath, sizeof(rpath), "%s-MD5", path);
printf("%08x-%08x %s 32 bytes\n", ioff, ioff + isize - 1, rpath);
write_image(rpath, &buf[ioff + isize], 32);
}
int
main(int argc, char *argv[])
{
off_t size;
uint8_t *buf;
int fd;
if (argc != 2) {
fprintf(stderr, "usage: %s image\n", argv[0]);
exit(EXIT_FAILURE);
}
if ((fd = open(argv[1], O_RDONLY)) == -1)
err(EXIT_FAILURE, "%s", argv[1]);
if ((size = lseek(fd, 0, SEEK_END)) == -1)
err(EXIT_FAILURE, "%s", argv[1]);
if ((buf = mmap(NULL, size, PROT_READ, MAP_SHARED | MAP_FILE, fd, 0))
== MAP_FAILED)
err(EXIT_FAILURE, "%s", argv[1]);
if (memcmp(buf, "RKFW", 4) == 0)
unpack_rkfw(argv[1], buf, size);
else if (memcmp(buf, "RKAF", 4) == 0)
unpack_rkaf(argv[1], buf, size);
else if (memcmp(buf, "KRNL", 4) == 0 || memcmp(buf, "PARM", 4) == 0)
unpack_krnl(argv[1], buf, size);
else if (memcmp(buf, "ANDROID!", 8) == 0)
unpack_android(argv[1], buf, size);
else
errx(EXIT_FAILURE, "invalid signature");
printf("unpacked\n");
munmap(buf, size);
close(fd);
return EXIT_SUCCESS;
}
int main(int argc, char *argv[]) {
if (argc != 2)
fatal("rkunpack v%d.%d\nusage: %s update.img\n",
RKFLASHTOOL_VERSION_MAJOR,
RKFLASHTOOL_VERSION_MINOR, argv[0]);
if ((fd = open(argv[1], O_BINARY | O_RDONLY)) == -1)
fatal("%s: %s\n", argv[1], strerror(errno));
if ((size = lseek(fd, 0, SEEK_END)) == -1)
fatal("%s: %s\n", argv[1], strerror(errno));
#ifdef _WIN32
fm = CreateFileMapping((HANDLE)_get_osfhandle(fd), NULL, PAGE_READONLY, 0, 0, NULL);
buf = MapViewOfFile(fm, FILE_MAP_READ, 0, 0, 0);
if (!buf) fatal("%s: cannot create MapView of File\n", argv[1]);
#else
if ((buf = mmap(NULL, size, PROT_READ, MAP_SHARED | MAP_FILE, fd, 0))
== MAP_FAILED)
fatal("%s: %s\n", argv[1], strerror(errno));
#endif
if (!memcmp(buf, "RKAF", 4)) unpack_rkaf();
else if (!memcmp(buf, "RKFW", 4)) unpack_rkfw();
else fatal("%s: invalid signature\n", argv[1]);
printf("unpacked\n");
#ifdef _WIN32
CloseHandle(fm);
UnmapViewOfFile(buf);
#else
munmap(buf, size);
#endif
close(fd);
return 0;
}
