src/system/libroot/posix/wchar/wcsdup.c

   1 /*
   2 ** Copyright 2011, Oliver Tappe, zooey@hirschkaefer.de. All rights reserved.
   3 ** Distributed under the terms of the Haiku License.
   4 */
   5
   6 #include <stdlib.h>
   7 #include <string.h>
   8
   9 #include <errno_private.h>
  10 #include <wchar_private.h>
  11
  12
  13 wchar_t*
  14 __wcsdup(const wchar_t* wcs)
  15 {
  16         if (wcs == NULL)
  17                 return NULL;
  18
  19         {
  20                 size_t bufferSize = (wcslen(wcs) + 1) * sizeof(wchar_t);
  21                 wchar_t* dest = malloc(bufferSize);
  22                 if (dest == NULL) {
  23                         __set_errno(ENOMEM);
  24                         return NULL;
  25                 }
  26
  27                 memcpy(dest, wcs, bufferSize);
  28
  29                 return dest;
  30         }
  31 }
  32
  33
  34 B_DEFINE_WEAK_ALIAS(__wcsdup, wcsdup);