/crypto/heimdal/lib/roken/setprogname.c

https://bitbucket.org/freebsd/freebsd-head/ · C · 91 lines · 42 code · 17 blank · 32 comment · 10 complexity · 66e14d5753d37da00be56477e2376fef MD5 · raw file

  1. /*
  2. * Copyright (c) 1995-2004 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 <config.h>
  34. #include "roken.h"
  35. #ifndef HAVE___PROGNAME
  36. extern const char *__progname;
  37. #endif
  38. #ifndef HAVE_SETPROGNAME
  39. ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
  40. setprogname(const char *argv0)
  41. {
  42. #ifndef HAVE___PROGNAME
  43. const char *p;
  44. if(argv0 == NULL)
  45. return;
  46. p = strrchr(argv0, '/');
  47. #ifdef BACKSLASH_PATH_DELIM
  48. {
  49. const char * pb;
  50. pb = strrchr((p != NULL)? p : argv0, '\\');
  51. if (pb != NULL)
  52. p = pb;
  53. }
  54. #endif
  55. if(p == NULL)
  56. p = argv0;
  57. else
  58. p++;
  59. #ifdef _WIN32
  60. {
  61. char * fn = strdup(p);
  62. char * ext;
  63. strlwr(fn);
  64. ext = strrchr(fn, '.');
  65. if (ext != NULL && !strcmp(ext, ".exe"))
  66. *ext = '\0';
  67. __progname = fn;
  68. }
  69. #else
  70. __progname = p;
  71. #endif
  72. #endif /* HAVE___PROGNAME */
  73. }
  74. #endif /* HAVE_SETPROGNAME */