C. изменение кодировки

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <iconv.h>
#include <locale.h>
#include <langinfo.h>
#define WCOD "CP1251"
int main (int argc, char **argv)
{
  setlocale(LC_CTYPE,"");                     //
  char *cd;                                                 // put in cd current locale (example UTF-8)
  cd = nl_langinfo(CODESET);             //
  printf ("OUR LOCALE IS %s \n", cd); //
  char *a; // input output array
  char *b; // template array
  a = (char *) malloc (100);
  b = (char *) malloc (100);
  strcpy (a, "аяАЯ");
  if (strcmp (cd, WCOD) != 0 ) {
    size_t aa, bb;   
    aa=bb=strlen (a);
    iconv_t d;
    d = iconv_open( WCOD, cd);
    if ( d == (iconv_t)(-1)) {
      perror ("Что то пошло не так");
      exit (-1);
    }
    printf ("Converted %i \n", (int)iconv (d, &a, &aa, &b, &bb));
    iconv_close (d);
  }
  printf ("%i \n", (int)strlen (b));
}

// CP1251
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <iconv.h>
#include <locale.h>
#include <langinfo.h>
#define BS 20
#define WCOD "cp1251"
int main (int argc, char **argv)
{
  setlocale(LC_CTYPE,"");             //
  char *cd;                           // put in cd current locale (example UTF-8)
  cd = nl_langinfo(CODESET);          //
  printf ("OUR LOCALE IS %s \n", cd); //
  char inp [BS] = "аяАЯ";
  char out [BS];
  char *a = inp; // input output array
  char *b = out; // template array
  if (strcmp (cd, WCOD) != 0 ) {  
    size_t aa=BS, bb=BS;
    iconv_t d;
    d = iconv_open( WCOD, cd);
    if ( d == (iconv_t)(-1)) {
      perror ("Что то пошло не так");
      exit (-1);
    }
    printf ("Converted %i \n", (int)iconv (d, &a, &aa, &b, &bb));
    perror ("ERROR");  
    iconv_close (d);
 }
  printf ("Bred %i %i \n", (int)strlen (out), *out);
}