toolchain/gcc/newlib/libc/string/strndup_r.c

   1 #include <reent.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 #define MIN(a,b) ((a) < (b) ? (a) : (b))
   6
   7 char *
   8 _DEFUN (_strndup_r, (reent_ptr, str, n),
   9         struct _reent *reent_ptr  _AND
  10         _CONST char   *str _AND
  11         size_t n)
  12 {
  13   size_t len = MIN(strlen (str), n);
  14   char *copy = _malloc_r (reent_ptr, len + 1);
  15   if (copy)
  16     {
  17       memcpy (copy, str, len);
  18       copy[len] = '\0';
  19     }
  20   return copy;
  21 }