report_openssl_version.c 2.7 KB

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  1. /* File: report_openssl_version.c
  2. *
  3. * This file dynamically loads the OpenSSL shared image to report the
  4. * version string.
  5. *
  6. * It will optionally place that version string in a DCL symbol.
  7. *
  8. * Usage: report_openssl_version <shared_image> [<dcl_symbol>]
  9. *
  10. * Copyright (C) John Malmberg
  11. *
  12. * Permission to use, copy, modify, and/or distribute this software for any
  13. * purpose with or without fee is hereby granted, provided that the above
  14. * copyright notice and this permission notice appear in all copies.
  15. *
  16. * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  17. * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  18. * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  19. * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  20. * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  21. * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  22. * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  23. *
  24. * SPDX-License-Identifier: ISC
  25. *
  26. */
  27. #include <dlfcn.h>
  28. #include <openssl/opensslv.h>
  29. #include <openssl/crypto.h>
  30. #include <string.h>
  31. #include <descrip.h>
  32. #include <libclidef.h>
  33. #include <stsdef.h>
  34. #include <errno.h>
  35. unsigned long LIB$SET_SYMBOL(
  36. const struct dsc$descriptor_s * symbol,
  37. const struct dsc$descriptor_s * value,
  38. const unsigned long *table_type);
  39. int main(int argc, char **argv)
  40. {
  41. void *libptr;
  42. const char * (*ssl_version)(int t);
  43. const char *version;
  44. if(argc < 1) {
  45. puts("report_openssl_version filename");
  46. exit(1);
  47. }
  48. libptr = dlopen(argv[1], 0);
  49. ssl_version = (const char * (*)(int))dlsym(libptr, "SSLeay_version");
  50. if(!ssl_version) {
  51. ssl_version = (const char * (*)(int))dlsym(libptr, "ssleay_version");
  52. if(!ssl_version) {
  53. ssl_version = (const char * (*)(int))dlsym(libptr, "SSLEAY_VERSION");
  54. }
  55. }
  56. dlclose(libptr);
  57. if(!ssl_version) {
  58. puts("Unable to lookup version of OpenSSL");
  59. exit(1);
  60. }
  61. version = ssl_version(SSLEAY_VERSION);
  62. puts(version);
  63. /* Was a symbol argument given? */
  64. if(argc > 1) {
  65. int status;
  66. struct dsc$descriptor_s symbol_dsc;
  67. struct dsc$descriptor_s value_dsc;
  68. const unsigned long table_type = LIB$K_CLI_LOCAL_SYM;
  69. symbol_dsc.dsc$a_pointer = argv[2];
  70. symbol_dsc.dsc$w_length = strlen(argv[2]);
  71. symbol_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
  72. symbol_dsc.dsc$b_class = DSC$K_CLASS_S;
  73. value_dsc.dsc$a_pointer = (char *)version; /* Cast ok */
  74. value_dsc.dsc$w_length = strlen(version);
  75. value_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
  76. value_dsc.dsc$b_class = DSC$K_CLASS_S;
  77. status = LIB$SET_SYMBOL(&symbol_dsc, &value_dsc, &table_type);
  78. if(!$VMS_STATUS_SUCCESS(status)) {
  79. exit(status);
  80. }
  81. }
  82. exit(0);
  83. }