annotate mupdf-source/thirdparty/curl/docs/examples/ftpuploadfrommem.c @ 40:aa33339d6b8a upstream

ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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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 /* <DESC>
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23 * FTP upload a file from memory
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24 * </DESC>
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25 */
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26 #include <stdio.h>
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27 #include <string.h>
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28 #include <curl/curl.h>
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29
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30 static const char data[]=
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31 "Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
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32 "Nam rhoncus odio id venenatis volutpat. Vestibulum dapibus "
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33 "bibendum ullamcorper. Maecenas finibus elit augue, vel "
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34 "condimentum odio maximus nec. In hac habitasse platea dictumst. "
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35 "Vestibulum vel dolor et turpis rutrum finibus ac at nulla. "
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36 "Vivamus nec neque ac elit blandit pretium vitae maximus ipsum. "
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37 "Quisque sodales magna vel erat auctor, sed pellentesque nisi "
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38 "rhoncus. Donec vehicula maximus pretium. Aliquam eu tincidunt "
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39 "lorem.";
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40
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41 struct WriteThis {
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42 const char *readptr;
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43 size_t sizeleft;
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44 };
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45
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46 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp)
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47 {
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48 struct WriteThis *upload = (struct WriteThis *)userp;
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49 size_t max = size*nmemb;
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50
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51 if(max < 1)
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52 return 0;
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53
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54 if(upload->sizeleft) {
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55 size_t copylen = max;
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56 if(copylen > upload->sizeleft)
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57 copylen = upload->sizeleft;
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58 memcpy(ptr, upload->readptr, copylen);
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59 upload->readptr += copylen;
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60 upload->sizeleft -= copylen;
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61 return copylen;
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62 }
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63
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64 return 0; /* no more data left to deliver */
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65 }
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66
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67 int main(void)
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68 {
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69 CURL *curl;
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70 CURLcode res;
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71
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72 struct WriteThis upload;
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73
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74 upload.readptr = data;
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75 upload.sizeleft = strlen(data);
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76
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77 /* In windows, this will init the winsock stuff */
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78 res = curl_global_init(CURL_GLOBAL_DEFAULT);
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79 /* Check for errors */
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80 if(res != CURLE_OK) {
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81 fprintf(stderr, "curl_global_init() failed: %s\n",
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82 curl_easy_strerror(res));
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83 return 1;
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84 }
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85
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86 /* get a curl handle */
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87 curl = curl_easy_init();
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88 if(curl) {
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89 /* First set the URL, the target file */
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90 curl_easy_setopt(curl, CURLOPT_URL,
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91 "ftp://example.com/path/to/upload/file");
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92
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93 /* User and password for the FTP login */
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94 curl_easy_setopt(curl, CURLOPT_USERPWD, "login:secret");
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95
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96 /* Now specify we want to UPLOAD data */
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97 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
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98
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99 /* we want to use our own read function */
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100 curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
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101
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102 /* pointer to pass to our read function */
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103 curl_easy_setopt(curl, CURLOPT_READDATA, &upload);
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104
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105 /* get verbose debug output please */
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106 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
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107
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108 /* Set the expected upload size. */
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109 curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
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110 (curl_off_t)upload.sizeleft);
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111
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112 /* Perform the request, res will get the return code */
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113 res = curl_easy_perform(curl);
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114 /* Check for errors */
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115 if(res != CURLE_OK)
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116 fprintf(stderr, "curl_easy_perform() failed: %s\n",
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117 curl_easy_strerror(res));
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118
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119 /* always cleanup */
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120 curl_easy_cleanup(curl);
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121 }
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122 curl_global_cleanup();
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123 return 0;
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124 }