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comparison 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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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2017, 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.haxx.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 ***************************************************************************/
22 #include <stdio.h>
23 #include <string.h>
24
25 #include <curl/curl.h>
26 #include <sys/types.h>
27 #include <sys/stat.h>
28 #include <fcntl.h>
29 #include <errno.h>
30 #ifdef WIN32
31 #include <io.h>
32 #else
33 #include <unistd.h>
34 #endif
35
36 /* <DESC>
37 * Performs an FTP upload and renames the file just after a successful
38 * transfer.
39 * </DESC>
40 */
41
42 #define LOCAL_FILE "/tmp/uploadthis.txt"
43 #define UPLOAD_FILE_AS "while-uploading.txt"
44 #define REMOTE_URL "ftp://example.com/" UPLOAD_FILE_AS
45 #define RENAME_FILE_TO "renamed-and-fine.txt"
46
47 /* NOTE: if you want this example to work on Windows with libcurl as a
48 DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
49 Failing to do so will give you a crash since a DLL may not use the
50 variable's memory when passed in to it from an app like this. */
51 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
52 {
53 curl_off_t nread;
54 /* in real-world cases, this would probably get this data differently
55 as this fread() stuff is exactly what the library already would do
56 by default internally */
57 size_t retcode = fread(ptr, size, nmemb, stream);
58
59 nread = (curl_off_t)retcode;
60
61 fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
62 " bytes from file\n", nread);
63 return retcode;
64 }
65
66 int main(void)
67 {
68 CURL *curl;
69 CURLcode res;
70 FILE *hd_src;
71 struct stat file_info;
72 curl_off_t fsize;
73
74 struct curl_slist *headerlist = NULL;
75 static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
76 static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
77
78 /* get the file size of the local file */
79 if(stat(LOCAL_FILE, &file_info)) {
80 printf("Couldn't open '%s': %s\n", LOCAL_FILE, strerror(errno));
81 return 1;
82 }
83 fsize = (curl_off_t)file_info.st_size;
84
85 printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
86
87 /* get a FILE * of the same file */
88 hd_src = fopen(LOCAL_FILE, "rb");
89
90 /* In windows, this will init the winsock stuff */
91 curl_global_init(CURL_GLOBAL_ALL);
92
93 /* get a curl handle */
94 curl = curl_easy_init();
95 if(curl) {
96 /* build a list of commands to pass to libcurl */
97 headerlist = curl_slist_append(headerlist, buf_1);
98 headerlist = curl_slist_append(headerlist, buf_2);
99
100 /* we want to use our own read function */
101 curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
102
103 /* enable uploading */
104 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
105
106 /* specify target */
107 curl_easy_setopt(curl, CURLOPT_URL, REMOTE_URL);
108
109 /* pass in that last of FTP commands to run after the transfer */
110 curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
111
112 /* now specify which file to upload */
113 curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
114
115 /* Set the size of the file to upload (optional). If you give a *_LARGE
116 option you MUST make sure that the type of the passed-in argument is a
117 curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
118 make sure that to pass in a type 'long' argument. */
119 curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
120 (curl_off_t)fsize);
121
122 /* Now run off and do what you've been told! */
123 res = curl_easy_perform(curl);
124 /* Check for errors */
125 if(res != CURLE_OK)
126 fprintf(stderr, "curl_easy_perform() failed: %s\n",
127 curl_easy_strerror(res));
128
129 /* clean up the FTP commands list */
130 curl_slist_free_all(headerlist);
131
132 /* always cleanup */
133 curl_easy_cleanup(curl);
134 }
135 fclose(hd_src); /* close the local file */
136
137 curl_global_cleanup();
138 return 0;
139 }