x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
CURLOPT_READDATA(3) libcurl CURLOPT_READDATA(3)
NAME
CURLOPT_READDATA - pointer passed to the read callback
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_READDATA, void *pointer);
DESCRIPTION
Data pointer to pass to the file read function. If you use the CUR-
LOPT_READFUNCTION(3) option, this is the pointer you get as input in
the fourth argument to the callback.
If you do not specify a read callback but instead rely on the default
internal read function, this data must be a valid readable FILE * (cast
to 'void *').
If you are using libcurl as a DLL on Windows, you must use the CUR-
LOPT_READFUNCTION(3) callback if you set this option, otherwise you
might experience crashes.
DEFAULT
By default, this is a FILE * to stdin.
PROTOCOLS
This is used for all protocols when sending data.
EXAMPLE
CURL *curl = curl_easy_init();
struct MyData this;
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* pass pointer that gets passed in to the
CURLOPT_READFUNCTION callback */
curl_easy_setopt(curl, CURLOPT_READDATA, &this);
curl_easy_perform(curl);
}
AVAILABILITY
This option was once known by the older name CURLOPT_INFILE, the name
CURLOPT_READDATA(3) was introduced in 7.9.7.
RETURN VALUE
This returns CURLE_OK.
SEE ALSO
CURLOPT_HEADERDATA(3), CURLOPT_READFUNCTION(3), CURLOPT_WRITEDATA(3),
CURLOPT_WRITEFUNCTION(3)
ibcurl 8.4.0 September 26, 2023 CURLOPT_READDATA(3)
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