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23 .TH CURLOPT_CHUNK_DATA 3 "May 31, 2017" "libcurl 7.59.0" "curl_easy_setopt options"
26 CURLOPT_CHUNK_DATA \- custom pointer to the FTP chunk callbacks
28 #include <curl/curl.h>
30 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CHUNK_DATA, void *pointer);
32 Pass a \fIpointer\fP that will be untouched by libcurl and passed as the ptr
33 argument to the \fICURLOPT_CHUNK_BGN_FUNCTION(3)\fP and
34 \fICURLOPT_CHUNK_END_FUNCTION(3)\fP.
41 static long file_is_coming(struct curl_fileinfo *finfo,
42 struct callback_data *data,
45 printf("%3d %40s %10luB ", remains, finfo->filename,
46 (unsigned long)finfo->size);
48 switch(finfo->filetype) {
49 case CURLFILETYPE_DIRECTORY:
52 case CURLFILETYPE_FILE:
60 if(finfo->filetype == CURLFILETYPE_FILE) {
61 /* do not transfer files >= 50B */
62 if(finfo->size > 50) {
64 return CURL_CHUNK_BGN_FUNC_SKIP;
67 data->output = fopen(finfo->filename, "wb");
69 return CURL_CHUNK_BGN_FUNC_FAIL;
73 return CURL_CHUNK_BGN_FUNC_OK;
78 /* data for callback */
79 struct callback_data callback_info;
81 /* callback is called before download of concrete file started */
82 curl_easy_setopt(curl, CURLOPT_CHUNK_BGN_FUNCTION, file_is_coming);
83 curl_easy_setopt(curl, CURLOPT_CHUNK_DATA, &callback_info);
89 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
91 .BR CURLOPT_CHUNK_BGN_FUNCTION "(3), " CURLOPT_WILDCARDMATCH "(3), "