Add a couple of sanity-checks for return values that coverity thinks we ought to have. CIDs 337, 335.

svn:r17485

src/or/routerparse.c

@@ -2552,6 +2552,7 @@ networkstatus_parse_detached_signatures(const char *s, const char *eos)
   }
 
   tok = find_first_by_keyword(tokens, K_CONSENSUS_DIGEST);
+  tor_assert(tok);
   if (strlen(tok->args[0]) != HEX_DIGEST_LEN) {
     log_warn(LD_DIR, "Wrong length on consensus-digest in detached "
              "networkstatus signatures");

src/or/test.c

@@ -763,6 +763,7 @@ test_crypto(void)
   memset(data1, 6, 1024);
   for (idx = 0; idx < 10; ++idx) {
     i = base64_encode(data2, 1024, data1, idx);
+    test_assert(i >= 0);
     j = base64_decode(data3, 1024, data2, i);
     test_eq(j,idx);
     test_memeq(data3, data1, idx);