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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),

November 26, 2021 libcurl 7.81.0