1 files changed, 112 insertions, 0 deletions
diff --git a/tests/libtest/lib655.c b/tests/libtest/lib655.c
new file mode 100644
index 00000000..8777b99e
--- /dev/null
+++ b/tests/libtest/lib655.c
@@ -0,0 +1,112 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "test.h"
+
+#include "memdebug.h"
+
+static const char *TEST_DATA_STRING = "Test data";
+static int cb_count = 0;
+
+static int
+resolver_alloc_cb_fail(void *resolver_state, void *reserved, void *userdata)
+{
+  (void)resolver_state;
+  (void)reserved;
+
+  cb_count++;
+  if(strcmp(userdata, TEST_DATA_STRING)) {
+    fprintf(stderr, "Invalid test data received");
+    exit(1);
+  }
+
+  return 1;
+}
+
+static int
+resolver_alloc_cb_pass(void *resolver_state, void *reserved, void *userdata)
+{
+  (void)resolver_state;
+  (void)reserved;
+
+  cb_count++;
+  if(strcmp(userdata, TEST_DATA_STRING)) {
+    fprintf(stderr, "Invalid test data received");
+    exit(1);
+  }
+
+  return 0;
+}
+
+int test(char *URL)
+{
+  CURL *curl;
+  CURLcode res = CURLE_OK;
+
+  if(curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
+    fprintf(stderr, "curl_global_init() failed\n");
+    return TEST_ERR_MAJOR_BAD;
+  }
+  curl = curl_easy_init();
+  if(!curl) {
+    fprintf(stderr, "curl_easy_init() failed\n");
+    res = TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+
+  /* First set the URL that is about to receive our request. */
+  test_setopt(curl, CURLOPT_URL, URL);
+
+  test_setopt(curl, CURLOPT_RESOLVER_START_DATA, TEST_DATA_STRING);
+  test_setopt(curl, CURLOPT_RESOLVER_START_FUNCTION, resolver_alloc_cb_fail);
+
+  /* this should fail */
+  res = curl_easy_perform(curl);
+  if(res != CURLE_COULDNT_RESOLVE_HOST) {
+    fprintf(stderr, "curl_easy_perform should have returned "
+            "CURLE_COULDNT_RESOLVE_HOST but instead returned error %d\n", res);
+    if(res == CURLE_OK)
+      res = TEST_ERR_FAILURE;
+    goto test_cleanup;
+  }
+
+  test_setopt(curl, CURLOPT_RESOLVER_START_FUNCTION, resolver_alloc_cb_pass);
+
+  /* this should succeed */
+  res = curl_easy_perform(curl);
+  if(res) {
+    fprintf(stderr, "curl_easy_perform failed.\n");
+    goto test_cleanup;
+  }
+
+  if(cb_count != 2) {
+    fprintf(stderr, "Unexpected number of callbacks: %d\n", cb_count);
+    res = TEST_ERR_FAILURE;
+    goto test_cleanup;
+  }
+
+test_cleanup:
+  /* always cleanup */
+  curl_easy_cleanup(curl);
+  curl_global_cleanup();
+
+  return (int)res;
+}