/crypto/heimdal/lib/roken/strlcpy.c

https://bitbucket.org/freebsd/freebsd-head/ · C · 73 lines · 29 code · 12 blank · 32 comment · 7 complexity · a85f50415ab4d0f66bd10e547d4ad65c MD5 · raw file

  1. /*
  2. * Copyright (c) 1995-2002 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_STRLCPY
  36. #if defined(_MSC_VER) && _MSC_VER >= 1400
  37. ROKEN_LIB_FUNCTION size_t ROKEN_LIB_CALL
  38. strlcpy (char *dst, const char *src, size_t dst_cch)
  39. {
  40. errno_t e;
  41. if (dst_cch > 0)
  42. e = strncpy_s(dst, dst_cch, src, _TRUNCATE);
  43. return strlen (src);
  44. }
  45. #else
  46. ROKEN_LIB_FUNCTION size_t ROKEN_LIB_CALL
  47. strlcpy (char *dst, const char *src, size_t dst_sz)
  48. {
  49. size_t n;
  50. for (n = 0; n < dst_sz; n++) {
  51. if ((*dst++ = *src++) == '\0')
  52. break;
  53. }
  54. if (n < dst_sz)
  55. return n;
  56. if (n > 0)
  57. *(dst - 1) = '\0';
  58. return n + strlen (src);
  59. }
  60. #endif
  61. #endif