- unique constraint

[oweals/gnunet.git] / src / testbed / gnunet-helper-testbed.c

diff --git a/src/testbed/gnunet-helper-testbed.c b/src/testbed/gnunet-helper-testbed.c
index 523f5f357b29e4cee6e878c3ba70ac19bdb72150..e8c70a3543fba196814b2b9eeb5453d53c13ee56 100644 (file)
--- a/src/testbed/gnunet-helper-testbed.c
+++ b/src/testbed/gnunet-helper-testbed.c
@@ -338,7 +338,7 @@ tokenizer_cb (void *cls, void *client,
   char *config;
   char *xconfig;
   char *evstr;
-  char *str;
+  //char *str;
   size_t config_size;
   uLongf ul_config_size;
   size_t xconfig_size;
@@ -406,8 +406,10 @@ tokenizer_cb (void *cls, void *client,
   evstr = getenv (GNUNET_TESTING_PREFIX);
   if (NULL != evstr)
   {
-#if WINDOWS
-    GNUNET_break (0 == putenv (GNUNET_TESTING_PREFIX "="));
+    /* unsetting the variable will invalidate the pointer! */
+    evstr = GNUNET_strdup (evstr);
+#ifdef WINDOWS
+    GNUNET_break (0 != SetEnvironmentVariable (GNUNET_TESTING_PREFIX, NULL));
 #else
     GNUNET_break (0 == unsetenv (GNUNET_TESTING_PREFIX));
 #endif
@@ -417,12 +419,16 @@ tokenizer_cb (void *cls, void *client,
                                     NULL);
   if (NULL != evstr)
   {
-    GNUNET_assert (0 < GNUNET_asprintf (&str, 
+#ifdef WINDOWS
+    GNUNET_assert (0 != SetEnvironmentVariable (GNUNET_TESTING_PREFIX, evstr));
+#else
+    static char evar[2* PATH_MAX];
+
+    GNUNET_assert (0 < GNUNET_snprintf (evar, sizeof (evar),
                                         GNUNET_TESTING_PREFIX "=%s", evstr));
-    putenv (str);
-    /* do not free str will be consumed by putenv */
-    str = NULL;
-    /* do not free evstr */
+    putenv (evar);
+#endif
+    GNUNET_free (evstr);
     evstr = NULL;
   }
   GNUNET_free_non_null (hostname);
@@ -431,7 +437,7 @@ tokenizer_cb (void *cls, void *client,
   GNUNET_assert (GNUNET_OK ==
                  GNUNET_TESTING_configuration_create (test_system, cfg));
   GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
+                 GNUNET_CONFIGURATION_get_value_filename (cfg, "PATHS",
                                                         "DEFAULTCONFIG",
                                                         &config));
   if (GNUNET_OK != GNUNET_CONFIGURATION_write (cfg, config))
@@ -444,11 +450,15 @@ tokenizer_cb (void *cls, void *client,
   }
   LOG_DEBUG ("Staring testbed with config: %s\n", config);
   binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-testbed");
-  /* expose testbed configuration through env variable */
-  GNUNET_assert (0 < GNUNET_asprintf (&evstr, "%s=%s", ENV_TESTBED_CONFIG, config));
-  GNUNET_assert (0 == putenv (evstr)); /* Do NOT free evstr; it is consumed by
-                                          putenv */
-  evstr = NULL;
+  {
+    static char evar[2 * PATH_MAX];
+
+    /* expose testbed configuration through env variable */
+    GNUNET_assert (0 < GNUNET_snprintf (evar, sizeof (evar),
+                                        "%s=%s", ENV_TESTBED_CONFIG, config));
+    GNUNET_assert (0 == putenv (evar));
+    evstr = NULL;
+  }
   testbed =
       GNUNET_OS_start_process (PIPE_CONTROL,
                                GNUNET_OS_INHERIT_STD_ERR /*verbose? */ , NULL,
@@ -470,7 +480,7 @@ tokenizer_cb (void *cls, void *client,
   xconfig_size =
       GNUNET_TESTBED_compress_config_ (config, config_size, &xconfig);
   GNUNET_free (config);
-  wc = GNUNET_malloc (sizeof (struct WriteContext));
+  wc = GNUNET_new (struct WriteContext);
   wc->length = xconfig_size + sizeof (struct GNUNET_TESTBED_HelperReply);
   reply = GNUNET_realloc (xconfig, wc->length);
   memmove (&reply[1], reply, xconfig_size);