/crypto/heimdal/kuser/generate-requests.c

https://bitbucket.org/freebsd/freebsd-head/ · C · 145 lines · 94 code · 19 blank · 32 comment · 20 complexity · f16081ab0a025a338d231c7285f841d3 MD5 · raw file

  1. /*
  2. * Copyright (c) 2000 - 2004 Kungliga Tekniska Hรถgskolan
  3. * (Royal Institute of Technology, Stockholm, Sweden).
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. *
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in the
  15. * documentation and/or other materials provided with the distribution.
  16. *
  17. * 3. Neither the name of the Institute nor the names of its contributors
  18. * may be used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24. * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31. * SUCH DAMAGE.
  32. */
  33. #include "kuser_locl.h"
  34. static unsigned
  35. read_words (const char *filename, char ***ret_w)
  36. {
  37. unsigned n, alloc;
  38. FILE *f;
  39. char buf[256];
  40. char **w = NULL;
  41. f = fopen (filename, "r");
  42. if (f == NULL)
  43. err (1, "cannot open %s", filename);
  44. alloc = n = 0;
  45. while (fgets (buf, sizeof(buf), f) != NULL) {
  46. buf[strcspn(buf, "\r\n")] = '\0';
  47. if (n >= alloc) {
  48. alloc += 16;
  49. w = erealloc (w, alloc * sizeof(char **));
  50. }
  51. w[n++] = estrdup (buf);
  52. }
  53. *ret_w = w;
  54. if (n == 0)
  55. errx(1, "%s is an empty file, no words to try", filename);
  56. fclose(f);
  57. return n;
  58. }
  59. static void
  60. generate_requests (const char *filename, unsigned nreq)
  61. {
  62. krb5_principal client;
  63. krb5_context context;
  64. krb5_error_code ret;
  65. krb5_creds cred;
  66. int i;
  67. char **words;
  68. unsigned nwords;
  69. ret = krb5_init_context (&context);
  70. if (ret)
  71. errx (1, "krb5_init_context failed: %d", ret);
  72. nwords = read_words (filename, &words);
  73. for (i = 0; i < nreq; ++i) {
  74. char *name = words[rand() % nwords];
  75. memset(&cred, 0, sizeof(cred));
  76. ret = krb5_parse_name (context, name, &client);
  77. if (ret)
  78. krb5_err (context, 1, ret, "krb5_parse_name %s", name);
  79. ret = krb5_get_init_creds_password (context, &cred, client, "",
  80. NULL, NULL, 0, NULL, NULL);
  81. if (ret)
  82. krb5_free_cred_contents (context, &cred);
  83. krb5_free_principal(context, client);
  84. }
  85. }
  86. static int version_flag = 0;
  87. static int help_flag = 0;
  88. static struct getargs args[] = {
  89. { "version", 0, arg_flag, &version_flag },
  90. { "help", 0, arg_flag, &help_flag }
  91. };
  92. static void
  93. usage (int ret)
  94. {
  95. arg_printusage (args,
  96. sizeof(args)/sizeof(*args),
  97. NULL,
  98. "file number");
  99. exit (ret);
  100. }
  101. int
  102. main(int argc, char **argv)
  103. {
  104. int optidx = 0;
  105. int nreq;
  106. char *end;
  107. setprogname(argv[0]);
  108. if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
  109. usage(1);
  110. if (help_flag)
  111. usage (0);
  112. if(version_flag) {
  113. print_version(NULL);
  114. exit(0);
  115. }
  116. argc -= optidx;
  117. argv += optidx;
  118. if (argc != 2)
  119. usage (1);
  120. srand (0);
  121. nreq = strtol (argv[1], &end, 0);
  122. if (argv[1] == end || *end != '\0')
  123. usage (1);
  124. generate_requests (argv[0], nreq);
  125. return 0;
  126. }