CURLOPT_SEEKDATA3
Pointer passed to the seek callback
Usage
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SEEKDATA, void *pointer);
Overview
Data pointer to pass to the seek callback function. If you use the CURLOPT_SEEKFUNCTION(3) option, this is the pointer you get as input.
Default
If you do not set this, NULL is passed to the callback.
Protocols
This functionality affects ftp, http and sftp
Examples
#include <unistd.h> /* for lseek() */
struct data {
int our_fd;
};
static int seek_cb(void *clientp, curl_off_t offset, int origin)
{
struct data *d = (struct data *)clientp;
lseek(d->our_fd, offset, origin);
return CURL_SEEKFUNC_OK;
}
int main(void)
{
struct data seek_data;
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_SEEKFUNCTION, seek_cb);
curl_easy_setopt(curl, CURLOPT_SEEKDATA, &seek_data);
}
}
Return value
Releases
7 releases since Debian 8 (Jessie); the text changed 6 times.