/* LibTomCrypt, modular cryptographic library -- Tom St Denis

 *

 * LibTomCrypt is a library that provides various cryptographic

 * algorithms in a highly modular and flexible manner.

 *

 * The library is free for all purposes without any express

 * guarantee it works.

 */

#include "tomcrypt.h"

#ifdef LTC_MPI

#include <stdarg.h>

int ltc_init_multi(void **a, ...)

{

   void    **cur = a;

   int       np  = 0;

   va_list   args;

   va_start(args, a);

   while (cur != NULL) {

       if (mp_init(cur) != CRYPT_OK) {

          /* failed */

          va_list clean_list;

          va_start(clean_list, a);

          cur = a;

          while (np--) {

              mp_clear(*cur);

              cur = va_arg(clean_list, void**);

          }

          va_end(clean_list);

          va_end(args);

          return CRYPT_MEM;

       }

       ++np;

       cur = va_arg(args, void**);

   }

   va_end(args);

   return CRYPT_OK;

}

void ltc_deinit_multi(void *a, ...)

{

   void     *cur = a;

   va_list   args;

   va_start(args, a);

   while (cur != NULL) {

       mp_clear(cur);

       cur = va_arg(args, void *);

   }

   va_end(args);

}

void ltc_cleanup_multi(void **a, ...)

{

   void **cur = a;

   va_list args;

   va_start(args, a);

   while (cur != NULL) {

      if (*cur != NULL) {

         mp_clear(*cur);

         *cur = NULL;

      }

      cur = va_arg(args, void**);

   }

   va_end(args);

}

#endif

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