DragonFly On-Line Manual Pages

CURLOPT_SEEKDATA(3)        curl_easy_setopt options        CURLOPT_SEEKDATA(3)

NAME
       CURLOPT_SEEKDATA - 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 will get as
       input.

DEFAULT
       If you do not 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),

libcurl 7.87.0                   May 17, 2022              CURLOPT_SEEKDATA(3)