crypt.h 2.2 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475
  1. /*
  2. * UFC-crypt: ultra fast crypt(3) implementation
  3. *
  4. * Copyright (C) 1991-2016 Free Software Foundation, Inc.
  5. *
  6. * The GNU C Library is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU Lesser General Public
  8. * License as published by the Free Software Foundation; either
  9. * version 2.1 of the License, or (at your option) any later version.
  10. *
  11. * The GNU C Library is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. * Lesser General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU Lesser General Public
  17. * License along with the GNU C Library; if not, see
  18. * <http://www.gnu.org/licenses/>.
  19. *
  20. * @(#)crypt.h 1.5 12/20/96
  21. *
  22. */
  23. #ifndef _CRYPT_H
  24. #define _CRYPT_H 1
  25. #include <features.h>
  26. __BEGIN_DECLS
  27. /* Encrypt at most 8 characters from KEY using salt to perturb DES. */
  28. extern char *crypt (const char *__key, const char *__salt)
  29. __THROW __nonnull ((1, 2));
  30. /* Setup DES tables according KEY. */
  31. extern void setkey (const char *__key) __THROW __nonnull ((1));
  32. /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
  33. block in place. */
  34. extern void encrypt (char *__glibc_block, int __edflag)
  35. __THROW __nonnull ((1));
  36. #ifdef __USE_GNU
  37. /* Reentrant versions of the functions above. The additional argument
  38. points to a structure where the results are placed in. */
  39. struct crypt_data
  40. {
  41. char keysched[16 * 8];
  42. char sb0[32768];
  43. char sb1[32768];
  44. char sb2[32768];
  45. char sb3[32768];
  46. /* end-of-aligment-critical-data */
  47. char crypt_3_buf[14];
  48. char current_salt[2];
  49. long int current_saltbits;
  50. int direction, initialized;
  51. };
  52. extern char *crypt_r (const char *__key, const char *__salt,
  53. struct crypt_data * __restrict __data)
  54. __THROW __nonnull ((1, 2, 3));
  55. extern void setkey_r (const char *__key,
  56. struct crypt_data * __restrict __data)
  57. __THROW __nonnull ((1, 2));
  58. extern void encrypt_r (char *__glibc_block, int __edflag,
  59. struct crypt_data * __restrict __data)
  60. __THROW __nonnull ((1, 3));
  61. #endif
  62. __END_DECLS
  63. #endif /* crypt.h */