un-nest curl

curl-8.15.0/tests/libtest/lib654.c

@@ -0,0 +1,165 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 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.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.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+#include "first.h"
+
+#include "memdebug.h"
+
+struct t654_WriteThis {
+  const char *readptr;
+  curl_off_t sizeleft;
+  int freecount;
+};
+
+static void free_callback(void *userp)
+{
+  struct t654_WriteThis *pooh = (struct t654_WriteThis *) userp;
+
+  pooh->freecount++;
+}
+
+static size_t t654_read_cb(char *ptr, size_t size, size_t nmemb, void *userp)
+{
+  struct t654_WriteThis *pooh = (struct t654_WriteThis *)userp;
+  int eof;
+
+  if(size*nmemb < 1)
+    return 0;
+
+  eof = pooh->sizeleft <= 0;
+  if(!eof)
+    pooh->sizeleft--;
+
+  if(!eof) {
+    *ptr = *pooh->readptr;           /* copy one single byte */
+    pooh->readptr++;                 /* advance pointer */
+    return 1;                        /* we return 1 byte at a time! */
+  }
+
+  return 0;                         /* no more data left to deliver */
+}
+
+static CURLcode test_lib654(char *URL)
+{
+  static const char testdata[] = "dummy\n";
+
+  CURL *easy = NULL;
+  CURL *easy2 = NULL;
+  curl_mime *mime = NULL;
+  curl_mimepart *part;
+  struct curl_slist *hdrs = NULL;
+  CURLcode res = TEST_ERR_FAILURE;
+  struct t654_WriteThis pooh;
+
+  /*
+   * Check proper copy/release of mime post data bound to a duplicated
+   * easy handle.
+   */
+
+  if(curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
+    curl_mfprintf(stderr, "curl_global_init() failed\n");
+    return TEST_ERR_MAJOR_BAD;
+  }
+
+  easy = curl_easy_init();
+
+  /* First set the URL that is about to receive our POST. */
+  test_setopt(easy, CURLOPT_URL, URL);
+
+  /* get verbose debug output please */
+  test_setopt(easy, CURLOPT_VERBOSE, 1L);
+
+  /* include headers in the output */
+  test_setopt(easy, CURLOPT_HEADER, 1L);
+
+  /* Prepare the callback structure. */
+  pooh.readptr = testdata;
+  pooh.sizeleft = (curl_off_t) strlen(testdata);
+  pooh.freecount = 0;
+
+  /* Build the mime tree. */
+  mime = curl_mime_init(easy);
+  part = curl_mime_addpart(mime);
+  curl_mime_data(part, "hello", CURL_ZERO_TERMINATED);
+  curl_mime_name(part, "greeting");
+  curl_mime_type(part, "application/X-Greeting");
+  curl_mime_encoder(part, "base64");
+  hdrs = curl_slist_append(hdrs, "X-Test-Number: 654");
+  curl_mime_headers(part, hdrs, TRUE);
+  part = curl_mime_addpart(mime);
+  curl_mime_filedata(part, libtest_arg2);
+  part = curl_mime_addpart(mime);
+  curl_mime_data_cb(part, (curl_off_t) -1, t654_read_cb, NULL,
+                    free_callback, &pooh);
+
+  /* Bind mime data to its easy handle. */
+  test_setopt(easy, CURLOPT_MIMEPOST, mime);
+
+  /* Duplicate the handle. */
+  easy2 = curl_easy_duphandle(easy);
+  if(!easy2) {
+    curl_mfprintf(stderr, "curl_easy_duphandle() failed\n");
+    res = TEST_ERR_FAILURE;
+    goto test_cleanup;
+  }
+
+  /* Now free the mime structure: it should unbind it from the first
+     easy handle. */
+  curl_mime_free(mime);
+  mime = NULL;  /* Already cleaned up. */
+
+  /* Perform on the first handle: should not send any data. */
+  res = curl_easy_perform(easy);
+  if(res != CURLE_OK) {
+    curl_mfprintf(stderr, "curl_easy_perform(original) failed\n");
+    goto test_cleanup;
+  }
+
+  /* Perform on the second handle: if the bound mime structure has not been
+     duplicated properly, it should cause a valgrind error. */
+  res = curl_easy_perform(easy2);
+  if(res != CURLE_OK) {
+    curl_mfprintf(stderr, "curl_easy_perform(duplicated) failed\n");
+    goto test_cleanup;
+  }
+
+  /* Free the duplicated handle: it should call free_callback again.
+     If the mime copy was bad or not automatically released, valgrind
+     will signal it. */
+  curl_easy_cleanup(easy2);
+  easy2 = NULL;  /* Already cleaned up. */
+
+  if(pooh.freecount != 2) {
+    curl_mfprintf(stderr, "free_callback() called %d times instead of 2\n",
+                  pooh.freecount);
+    res = TEST_ERR_FAILURE;
+    goto test_cleanup;
+  }
+
+test_cleanup:
+  curl_easy_cleanup(easy);
+  curl_easy_cleanup(easy2);
+  curl_mime_free(mime);
+  curl_global_cleanup();
+  return res;
+}