moving resolver to util, making DNS lookups asynchronous in util

1 files changed, 212 insertions, 0 deletions

diff --git a/src/util/test_resolver_api.c b/src/util/test_resolver_api.c
new file mode 100644
index 000000000..295217c30
--- /dev/null
+++ b/src/util/test_resolver_api.c
@@ -0,0 +1,212 @@
+/*
+     This file is part of GNUnet.
+     (C) 2009 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 2, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file resolver/test_resolver_api.c
+ * @brief testcase for resolver_api.c
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_getopt_lib.h"
+#include "gnunet_os_lib.h"
+#include "gnunet_program_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_resolver_service.h"
+#include "resolver.h"
+
+#define VERBOSE GNUNET_NO
+
+
+static void
+check_hostname (void *cls, const struct sockaddr *sa, socklen_t salen)
+{
+  int *ok = cls;
+
+  if (salen == 0)
+    {
+      (*ok) &= ~8;
+      return;
+    }
+  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+              _("Got IP address `%s' for our host.\n"),
+              GNUNET_a2s (sa, salen));
+}
+
+
+static void
+check_localhost_num (void *cls, const char *hostname)
+{
+  int *ok = cls;
+  if (hostname == NULL)
+    return;
+  if (0 == strcmp (hostname, "127.0.0.1"))
+    {
+#if DEBUG_RESOLVER
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "Received correct hostname `%s'.\n", hostname);
+#endif
+      (*ok) &= ~4;
+    }
+  else
+    {
+#if DEBUG_RESOLVER
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "Received invalid hostname `%s'.\n", hostname);
+#endif
+      GNUNET_break (0);
+    }
+}
+
+static void
+check_localhost (void *cls, const char *hostname)
+{
+  int *ok = cls;
+  if (hostname == NULL)
+    return;
+  if (0 == strcmp (hostname, "localhost"))
+    {
+#if DEBUG_RESOLVER
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "Received correct hostname `%s'.\n", hostname);
+#endif
+      (*ok) &= ~2;
+    }
+  else
+    {
+#if DEBUG_RESOLVER
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "Received invalid hostname `%s'.\n", hostname);
+#endif
+      GNUNET_break (0);
+    }
+}
+
+static void
+check_127 (void *cls, const struct sockaddr *sa, socklen_t salen)
+{
+  int *ok = cls;
+  const struct sockaddr_in *sai = (const struct sockaddr_in *) sa;
+
+  if (sa == NULL)
+    return;
+  GNUNET_assert (sizeof (struct sockaddr_in) == salen);
+  if (sai->sin_addr.s_addr == htonl (INADDR_LOOPBACK))
+    {
+#if DEBUG_RESOLVER
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct address.\n");
+#endif
+      (*ok) &= ~1;
+    }
+  else
+    {
+#if DEBUG_RESOLVER
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received incorrect address.\n");
+#endif
+      GNUNET_break (0);
+    }
+}
+
+static void
+run (void *cls,
+     struct GNUNET_SCHEDULER_Handle *sched,
+     char *const *args,
+     const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct sockaddr_in sa;
+  struct GNUNET_TIME_Relative timeout =
+    GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+                                   2500);
+  memset (&sa, 0, sizeof (sa));
+  sa.sin_family = AF_INET;
+  sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+  GNUNET_RESOLVER_ip_get (sched,
+                          cfg,
+                          "localhost", AF_INET, timeout, &check_127, cls);
+  GNUNET_RESOLVER_hostname_get (sched,
+                                cfg,
+                                (const struct sockaddr *) &sa,
+                                sizeof (struct sockaddr),
+                                GNUNET_YES, timeout, &check_localhost, cls);
+  GNUNET_RESOLVER_hostname_get (sched,
+                                cfg,
+                                (const struct sockaddr *) &sa,
+                                sizeof (struct sockaddr),
+                                GNUNET_NO,
+                                timeout, &check_localhost_num, cls);
+  GNUNET_RESOLVER_hostname_resolve (sched,
+                                    cfg,
+                                    AF_UNSPEC, timeout, &check_hostname, cls);
+}
+
+static int
+check ()
+{
+  int ok = 1 + 2 + 4 + 8;
+  pid_t pid;
+  char *const argv[] = { "test-resolver-api",
+    "-c",
+    "test_resolver_api_data.conf",
+#if VERBOSE
+    "-L", "DEBUG",
+#endif
+    NULL
+  };
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_END
+  };
+  pid = GNUNET_OS_start_process ("gnunet-service-resolver",
+                                 "gnunet-service-resolver",
+#if VERBOSE
+                                 "-L", "DEBUG",
+#endif
+                                 "-c", "test_resolver_api_data.conf", NULL);
+  sleep (1);
+  GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
+                      argv, "test-resolver-api", "nohelp",
+                      options, &run, &ok);
+  if (0 != PLIBC_KILL (pid, SIGTERM))
+    {
+      GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+      ok = 1;
+    }
+  GNUNET_OS_process_wait(pid);
+  if (ok != 0)
+    fprintf (stderr, "Missed some resolutions: %u\n", ok);
+  return ok;
+}
+
+int
+main (int argc, char *argv[])
+{
+  int ret;
+
+  GNUNET_log_setup ("test-resolver-api",
+#if VERBOSE
+                    "DEBUG",
+#else
+                    "WARNING",
+#endif
+                    NULL);
+  ret = check ();
+
+  return ret;
+}
+
+/* end of test_resolver_api.c */