lzmadec.c 1.2 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2013 Patrice Bouchand <pbfwdlist_gmail_com>
  4. * lzma uncompress command in Uboot
  5. *
  6. * made from existing cmd_unzip.c file of Uboot
  7. *
  8. * (C) Copyright 2000
  9. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  10. */
  11. #include <common.h>
  12. #include <command.h>
  13. #include <env.h>
  14. #include <mapmem.h>
  15. #include <asm/io.h>
  16. #include <lzma/LzmaTools.h>
  17. static int do_lzmadec(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  18. {
  19. unsigned long src, dst;
  20. SizeT src_len = ~0UL, dst_len = ~0UL;
  21. int ret;
  22. switch (argc) {
  23. case 4:
  24. dst_len = simple_strtoul(argv[3], NULL, 16);
  25. /* fall through */
  26. case 3:
  27. src = simple_strtoul(argv[1], NULL, 16);
  28. dst = simple_strtoul(argv[2], NULL, 16);
  29. break;
  30. default:
  31. return CMD_RET_USAGE;
  32. }
  33. ret = lzmaBuffToBuffDecompress(map_sysmem(dst, dst_len), &src_len,
  34. map_sysmem(src, 0), dst_len);
  35. if (ret != SZ_OK)
  36. return 1;
  37. printf("Uncompressed size: %ld = %#lX\n", (ulong)src_len,
  38. (ulong)src_len);
  39. env_set_hex("filesize", src_len);
  40. return 0;
  41. }
  42. U_BOOT_CMD(
  43. lzmadec, 4, 1, do_lzmadec,
  44. "lzma uncompress a memory region",
  45. "srcaddr dstaddr [dstsize]"
  46. );