Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/docs/examples/ftpupload.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 /***************************************************************************
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2 * _ _ ____ _
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3 * Project ___| | | | _ \| |
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4 * / __| | | | |_) | |
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5 * | (__| |_| | _ <| |___
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6 * \___|\___/|_| \_\_____|
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7 *
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8 * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 *
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10 * This software is licensed as described in the file COPYING, which
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11 * you should have received as part of this distribution. The terms
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12 * are also available at https://curl.haxx.se/docs/copyright.html.
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13 *
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14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 * copies of the Software, and permit persons to whom the Software is
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16 * furnished to do so, under the terms of the COPYING file.
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17 *
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18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 * KIND, either express or implied.
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20 *
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21 ***************************************************************************/
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22 #include <stdio.h>
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23 #include <string.h>
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24
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25 #include <curl/curl.h>
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26 #include <sys/types.h>
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27 #include <sys/stat.h>
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28 #include <fcntl.h>
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29 #include <errno.h>
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30 #ifdef WIN32
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31 #include <io.h>
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32 #else
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33 #include <unistd.h>
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34 #endif
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35
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36 /* <DESC>
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37 * Performs an FTP upload and renames the file just after a successful
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38 * transfer.
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39 * </DESC>
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40 */
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41
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42 #define LOCAL_FILE "/tmp/uploadthis.txt"
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43 #define UPLOAD_FILE_AS "while-uploading.txt"
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44 #define REMOTE_URL "ftp://example.com/" UPLOAD_FILE_AS
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45 #define RENAME_FILE_TO "renamed-and-fine.txt"
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46
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47 /* NOTE: if you want this example to work on Windows with libcurl as a
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48 DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
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49 Failing to do so will give you a crash since a DLL may not use the
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50 variable's memory when passed in to it from an app like this. */
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51 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
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52 {
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53 curl_off_t nread;
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54 /* in real-world cases, this would probably get this data differently
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55 as this fread() stuff is exactly what the library already would do
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56 by default internally */
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57 size_t retcode = fread(ptr, size, nmemb, stream);
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58
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59 nread = (curl_off_t)retcode;
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60
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61 fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
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62 " bytes from file\n", nread);
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63 return retcode;
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64 }
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65
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66 int main(void)
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67 {
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68 CURL *curl;
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69 CURLcode res;
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70 FILE *hd_src;
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71 struct stat file_info;
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72 curl_off_t fsize;
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73
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74 struct curl_slist *headerlist = NULL;
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75 static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
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76 static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
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77
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78 /* get the file size of the local file */
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79 if(stat(LOCAL_FILE, &file_info)) {
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80 printf("Couldn't open '%s': %s\n", LOCAL_FILE, strerror(errno));
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81 return 1;
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82 }
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83 fsize = (curl_off_t)file_info.st_size;
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84
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85 printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
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86
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87 /* get a FILE * of the same file */
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88 hd_src = fopen(LOCAL_FILE, "rb");
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89
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90 /* In windows, this will init the winsock stuff */
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91 curl_global_init(CURL_GLOBAL_ALL);
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92
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93 /* get a curl handle */
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94 curl = curl_easy_init();
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95 if(curl) {
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96 /* build a list of commands to pass to libcurl */
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97 headerlist = curl_slist_append(headerlist, buf_1);
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98 headerlist = curl_slist_append(headerlist, buf_2);
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99
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100 /* we want to use our own read function */
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101 curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
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102
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103 /* enable uploading */
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104 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
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105
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106 /* specify target */
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107 curl_easy_setopt(curl, CURLOPT_URL, REMOTE_URL);
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108
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109 /* pass in that last of FTP commands to run after the transfer */
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110 curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
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111
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112 /* now specify which file to upload */
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113 curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
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114
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115 /* Set the size of the file to upload (optional). If you give a *_LARGE
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116 option you MUST make sure that the type of the passed-in argument is a
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117 curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
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118 make sure that to pass in a type 'long' argument. */
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119 curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
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120 (curl_off_t)fsize);
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121
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122 /* Now run off and do what you've been told! */
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123 res = curl_easy_perform(curl);
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124 /* Check for errors */
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125 if(res != CURLE_OK)
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126 fprintf(stderr, "curl_easy_perform() failed: %s\n",
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127 curl_easy_strerror(res));
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128
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129 /* clean up the FTP commands list */
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130 curl_slist_free_all(headerlist);
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131
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132 /* always cleanup */
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133 curl_easy_cleanup(curl);
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134 }
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135 fclose(hd_src); /* close the local file */
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136
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137 curl_global_cleanup();
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138 return 0;
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139 }