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),