fdt_strerror.c 3.5 KB

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  1. /*
  2. * libfdt - Flat Device Tree manipulation
  3. * Copyright (C) 2006 David Gibson, IBM Corporation.
  4. *
  5. * libfdt is dual licensed: you can use it either under the terms of
  6. * the GPL, or the BSD license, at your option.
  7. *
  8. * a) This library is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of the
  11. * License, or (at your option) any later version.
  12. *
  13. * This library is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public
  19. * License along with this library; if not, write to the Free
  20. * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  21. * MA 02110-1301 USA
  22. *
  23. * Alternatively,
  24. *
  25. * b) Redistribution and use in source and binary forms, with or
  26. * without modification, are permitted provided that the following
  27. * conditions are met:
  28. *
  29. * 1. Redistributions of source code must retain the above
  30. * copyright notice, this list of conditions and the following
  31. * disclaimer.
  32. * 2. Redistributions in binary form must reproduce the above
  33. * copyright notice, this list of conditions and the following
  34. * disclaimer in the documentation and/or other materials
  35. * provided with the distribution.
  36. *
  37. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  38. * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  39. * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  40. * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  41. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  42. * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  43. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  44. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  45. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  46. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  47. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  48. * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  49. * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  50. */
  51. #include "libfdt_env.h"
  52. #include <fdt.h>
  53. #include <libfdt.h>
  54. #include "libfdt_internal.h"
  55. struct fdt_errtabent {
  56. const char *str;
  57. };
  58. #define FDT_ERRTABENT(val) \
  59. [(val)] = { .str = #val, }
  60. static struct fdt_errtabent fdt_errtable[] = {
  61. FDT_ERRTABENT(FDT_ERR_NOTFOUND),
  62. FDT_ERRTABENT(FDT_ERR_EXISTS),
  63. FDT_ERRTABENT(FDT_ERR_NOSPACE),
  64. FDT_ERRTABENT(FDT_ERR_BADOFFSET),
  65. FDT_ERRTABENT(FDT_ERR_BADPATH),
  66. FDT_ERRTABENT(FDT_ERR_BADPHANDLE),
  67. FDT_ERRTABENT(FDT_ERR_BADSTATE),
  68. FDT_ERRTABENT(FDT_ERR_TRUNCATED),
  69. FDT_ERRTABENT(FDT_ERR_BADMAGIC),
  70. FDT_ERRTABENT(FDT_ERR_BADVERSION),
  71. FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
  72. FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
  73. FDT_ERRTABENT(FDT_ERR_INTERNAL),
  74. FDT_ERRTABENT(FDT_ERR_BADNCELLS),
  75. FDT_ERRTABENT(FDT_ERR_BADVALUE),
  76. FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
  77. FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
  78. };
  79. #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
  80. const char *fdt_strerror(int errval)
  81. {
  82. if (errval > 0)
  83. return "<valid offset/length>";
  84. else if (errval == 0)
  85. return "<no error>";
  86. else if (errval > -FDT_ERRTABSIZE) {
  87. const char *s = fdt_errtable[-errval].str;
  88. if (s)
  89. return s;
  90. }
  91. return "<unknown error>";
  92. }