base64 decode performance test

base64decode.c

#include <stdio.h>
#include <string.h>
#include <curl/curl.h>

#define F "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\x01\xff"
#define F2 F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F F

int main(void)
{
  printf("%s\n", curl_version());
  CURL *curl;
  CURLcode res;

  curl_global_init(CURL_GLOBAL_DEFAULT);
  curl = curl_easy_init();
  if(curl) {
    size_t max = strlen(F2);
    char *base;
    size_t baselen;
    size_t i;
    size_t loops = 1000;
    Curl_base64_encode(F2, max, &base, &baselen);
    printf("Encoded length: %zu, loops = %d\n", baselen, loops);
    for(; loops; loops--) {
      for(i = 1; i < baselen; i++ ) {
        char *out;
        size_t outlen;
        Curl_base64_decode(base, &out, &outlen);
        curl_free(out);
      }
    }
    curl_easy_cleanup(curl);
  }
  curl_global_cleanup();
  return 0;
}