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siphash

2.1.0
3.2.0 3.1.3 3.1.2 3.1.1 3.1.0 3.0.1 3.0.0 2.1.1 2.1.0 2.0.1 2.0.0 1.1.0 1.0.0

Elixir implementation of the SipHash hash family

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siphash c_src util.c
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c_src/util.c 

#include "erl_nif.h"



static ERL_NIF_TERM format(ErlNifEnv* env, int arc, const ERL_NIF_TERM argv[]) {

  unsigned long n;

  ErlNifBinary f, r;



  enif_alloc_binary(16, &r);

  enif_get_ulong(env, argv[0], &n);

  enif_inspect_binary(env, argv[1], &f);



  sprintf(r.data, f.data, n);



  return enif_make_binary(env, &r);

}



static ErlNifFunc nif_funcs[] = {

  { "format", 2, format }

};



static int upgrade(ErlNifEnv* env, void** new, void** old, ERL_NIF_TERM info){

  return 0;

}



ERL_NIF_INIT(Elixir.SipHash.Util,nif_funcs,NULL,NULL,upgrade,NULL)