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3rd-party/curl-7.52.1/docs/examples/httpput.c

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+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2016, 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.
+ *
+ ***************************************************************************/
+/* <DESC>
+ * HTTP PUT with easy interface and read callback
+ * </DESC>
+ */
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <curl/curl.h>
+
+/*
+ * This example shows a HTTP PUT operation. PUTs a file given as a command
+ * line argument to the URL also given on the command line.
+ *
+ * This example also uses its own read callback.
+ *
+ * Here's an article on how to setup a PUT handler for Apache:
+ * http://www.apacheweek.com/features/put
+ */
+
+static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
+{
+  size_t retcode;
+  curl_off_t nread;
+
+  /* in real-world cases, this would probably get this data differently
+     as this fread() stuff is exactly what the library already would do
+     by default internally */
+  retcode = fread(ptr, size, nmemb, stream);
+
+  nread = (curl_off_t)retcode;
+
+  fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
+          " bytes from file\n", nread);
+
+  return retcode;
+}
+
+int main(int argc, char **argv)
+{
+  CURL *curl;
+  CURLcode res;
+  FILE * hd_src;
+  struct stat file_info;
+
+  char *file;
+  char *url;
+
+  if(argc < 3)
+    return 1;
+
+  file= argv[1];
+  url = argv[2];
+
+  /* get the file size of the local file */
+  stat(file, &file_info);
+
+  /* get a FILE * of the same file, could also be made with
+     fdopen() from the previous descriptor, but hey this is just
+     an example! */
+  hd_src = fopen(file, "rb");
+
+  /* In windows, this will init the winsock stuff */
+  curl_global_init(CURL_GLOBAL_ALL);
+
+  /* get a curl handle */
+  curl = curl_easy_init();
+  if(curl) {
+    /* we want to use our own read function */
+    curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
+
+    /* enable uploading */
+    curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
+
+    /* HTTP PUT please */
+    curl_easy_setopt(curl, CURLOPT_PUT, 1L);
+
+    /* specify target URL, and note that this URL should include a file
+       name, not only a directory */
+    curl_easy_setopt(curl, CURLOPT_URL, url);
+
+    /* now specify which file to upload */
+    curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
+
+    /* provide the size of the upload, we specicially typecast the value
+       to curl_off_t since we must be sure to use the correct data size */
+    curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
+                     (curl_off_t)file_info.st_size);
+
+    /* Now run off and do what you've been told! */
+    res = curl_easy_perform(curl);
+    /* Check for errors */
+    if(res != CURLE_OK)
+      fprintf(stderr, "curl_easy_perform() failed: %s\n",
+              curl_easy_strerror(res));
+
+    /* always cleanup */
+    curl_easy_cleanup(curl);
+  }
+  fclose(hd_src); /* close the local file */
+
+  curl_global_cleanup();
+  return 0;
+}