NAME

       CURLOPT_SEEKDATA - custom pointer passed to the seek callback

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SEEKDATA, void *pointer);

DESCRIPTION

       Data pointer to pass to the seek callback function. If you use the CURLOPT_SEEKFUNCTION(3)
       option, this is the pointer you'll get as input.

DEFAULT

       If you don't set this, NULL is passed to the callback.

PROTOCOLS

       HTTP, FTP, SFTP

EXAMPLE

       static int seek_cb(void *userp, curl_off_t offset, int origin)
       {
         struct data *d = (struct data *)userp;
         lseek(d->our_fd, offset, origin);
         return CURL_SEEKFUNC_OK;
       }

       {
         struct data seek_data;
         curl_easy_setopt(CURL *handle, CURLOPT_SEEKFUNCTION, seek_cb);
         curl_easy_setopt(CURL *handle, CURLOPT_SEEKDATA, &seek_data);
       }

AVAILABILITY

       Added in 7.18.0

RETURN VALUE

SEE ALSO

       CURLOPT_STDERR(3), CURLOPT_DEBUGFUNCTION(3),