Manual Reference Pages - CURLOPT_WRITEDATA (3)
CURLOPT_WRITEDATA - custom pointer passed to the write callback
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_WRITEDATA, void *pointer);
A data pointer to pass to the write callback. If you use the
CURLOPT_WRITEFUNCTION(3) option, this is the pointer youll get in that
callbacks 4th argument. If you dont use a write callback, you must make
pointer a FILE * (cast to void *) as libcurl will pass this to
fwrite(3) when writing data.
The internal CURLOPT_WRITEFUNCTION(3) will write the data to the FILE *
given with this option, or to stdout if this option hasnt been set.
If youre using libcurl as a win32 DLL, you MUST use the
CURLOPT_WRITEFUNCTION(3) if you set this option or you will experience
By default, this is a FILE * to stdout.
Used for all protocols.
A common technique is to use the write callback to store the incoming data
into a dynamically growing allocated buffer, and then this
CURLOPT_WRITEDATA(3) is used to point to a struct or the buffer to store
data in. Like in the getinmemory example:
Available in all libcurl versions. This option was formerly known as
CURLOPT_FILE, the name CURLOPT_WRITEDATA(3) was introduced in
This will return CURLE_OK.
|libcurl 7.37.0 ||CURLOPT_WRITEDATA (3) ||16 Jun 2014 |
Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.