base64: add and most important - execute tests

testprof/base64_test.c

@@ -3,7 +3,46 @@
 int base64_test(void)
 {
    unsigned char in[64], out[256], tmp[64];
-   unsigned long x, l1, l2;
+   unsigned long x, l1, l2, slen1;
+
+   /*
+    TEST CASES SOURCE:
+
+    Network Working Group                                       S. Josefsson
+    Request for Comments: 4648                                           SJD
+    Obsoletes: 3548                                             October 2006
+    Category: Standards Track
+    */
+   const struct {
+     const char* s;
+     const char* b64;
+   } cases[] = {
+       {"", ""              },
+       {"f", "Zg=="         },
+       {"fo", "Zm8="        },
+       {"foo", "Zm9v"       },
+       {"foob", "Zm9vYg=="  },
+       {"fooba", "Zm9vYmE=" },
+       {"foobar", "Zm9vYmFy"}
+   };
+
+   for (x = 0; x < sizeof(cases)/sizeof(cases[0]); ++x) {
+       slen1 = strlen(cases[x].s);
+       l1 = sizeof(out);
+       DO(base64_encode(cases[x].s, slen1, out, &l1));
+       l2 = sizeof(tmp);
+       DO(base64_decode(out, l1, tmp, &l2));
+       if (l2 != slen1 || l1 != strlen(cases[x].b64) || memcmp(tmp, cases[x].s, l2) || memcmp(out, cases[x].b64, l1)) {
+           fprintf(stderr, "\nbase64 failed case %lu", x);
+           fprintf(stderr, "\nbase64 should: %s", cases[x].b64);
+           out[sizeof(out)-1] = '\0';
+           fprintf(stderr, "\nbase64 is:     %s", out);
+           fprintf(stderr, "\nplain  should: %s", cases[x].s);
+           tmp[sizeof(tmp)-1] = '\0';
+           fprintf(stderr, "\nplain  is:     %s\n", tmp);
+           return 1;
+       }
+   }
 
    for  (x = 0; x < 64; x++) {
        yarrow_read(in, x, &yarrow_prng);

testprof/misc_test.c

@@ -7,6 +7,9 @@ int misc_test(void)
 #endif
 #ifdef LTC_PKCS_5
    DO(pkcs_5_test());
+#endif
+#ifdef LTC_BASE64
+   DO(base64_test());
 #endif
    return 0;
 }