httpput.c 3.6 KB

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  1. /***************************************************************************
  2. * _ _ ____ _
  3. * Project ___| | | | _ \| |
  4. * / __| | | | |_) | |
  5. * | (__| |_| | _ <| |___
  6. * \___|\___/|_| \_\_____|
  7. *
  8. * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
  9. *
  10. * This software is licensed as described in the file COPYING, which
  11. * you should have received as part of this distribution. The terms
  12. * are also available at https://curl.se/docs/copyright.html.
  13. *
  14. * You may opt to use, copy, modify, merge, publish, distribute and/or sell
  15. * copies of the Software, and permit persons to whom the Software is
  16. * furnished to do so, under the terms of the COPYING file.
  17. *
  18. * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19. * KIND, either express or implied.
  20. *
  21. * SPDX-License-Identifier: curl
  22. *
  23. ***************************************************************************/
  24. /* <DESC>
  25. * HTTP PUT with easy interface and read callback
  26. * </DESC>
  27. */
  28. #include <stdio.h>
  29. #include <fcntl.h>
  30. #include <sys/stat.h>
  31. #include <curl/curl.h>
  32. /*
  33. * This example shows an HTTP PUT operation. PUTs a file given as a command
  34. * line argument to the URL also given on the command line.
  35. *
  36. * This example also uses its own read callback.
  37. *
  38. * Here's an article on how to setup a PUT handler for Apache:
  39. * http://www.apacheweek.com/features/put
  40. */
  41. static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *stream)
  42. {
  43. size_t retcode;
  44. unsigned long nread;
  45. /* in real-world cases, this would probably get this data differently
  46. as this fread() stuff is exactly what the library already would do
  47. by default internally */
  48. retcode = fread(ptr, size, nmemb, stream);
  49. if(retcode > 0) {
  50. nread = (unsigned long)retcode;
  51. fprintf(stderr, "*** We read %lu bytes from file\n", nread);
  52. }
  53. return retcode;
  54. }
  55. int main(int argc, char **argv)
  56. {
  57. CURL *curl;
  58. CURLcode res;
  59. FILE * hd_src;
  60. struct stat file_info;
  61. char *file;
  62. char *url;
  63. if(argc < 3)
  64. return 1;
  65. file = argv[1];
  66. url = argv[2];
  67. /* get the file size of the local file */
  68. stat(file, &file_info);
  69. /* get a FILE * of the same file, could also be made with
  70. fdopen() from the previous descriptor, but hey this is just
  71. an example! */
  72. hd_src = fopen(file, "rb");
  73. /* In windows, this inits the winsock stuff */
  74. curl_global_init(CURL_GLOBAL_ALL);
  75. /* get a curl handle */
  76. curl = curl_easy_init();
  77. if(curl) {
  78. /* we want to use our own read function */
  79. curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
  80. /* enable uploading (implies PUT over HTTP) */
  81. curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
  82. /* specify target URL, and note that this URL should include a file
  83. name, not only a directory */
  84. curl_easy_setopt(curl, CURLOPT_URL, url);
  85. /* now specify which file to upload */
  86. curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
  87. /* provide the size of the upload, we typecast the value to curl_off_t
  88. since we must be sure to use the correct data size */
  89. curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
  90. (curl_off_t)file_info.st_size);
  91. /* Now run off and do what you have been told! */
  92. res = curl_easy_perform(curl);
  93. /* Check for errors */
  94. if(res != CURLE_OK)
  95. fprintf(stderr, "curl_easy_perform() failed: %s\n",
  96. curl_easy_strerror(res));
  97. /* always cleanup */
  98. curl_easy_cleanup(curl);
  99. }
  100. fclose(hd_src); /* close the local file */
  101. curl_global_cleanup();
  102. return 0;
  103. }