curl/docs/libcurl/opts/CURLOPT_SEEKDATA.3
max.mehl ad9bc5976d
copyright: make repository REUSE compliant
Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869
2022-06-13 09:13:00 +02:00

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.TH CURLOPT_SEEKDATA 3 "16 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_SEEKDATA \- pointer passed to the seek callback
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SEEKDATA, void *pointer);
.fi
.SH DESCRIPTION
Data \fIpointer\fP to pass to the seek callback function. If you use the
\fICURLOPT_SEEKFUNCTION(3)\fP option, this is the pointer you will get as
input.
.SH DEFAULT
If you do not set this, NULL is passed to the callback.
.SH PROTOCOLS
HTTP, FTP, SFTP
.SH EXAMPLE
.nf
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);
}
.fi
.SH AVAILABILITY
Added in 7.18.0
.SH RETURN VALUE
.SH "SEE ALSO"
.BR CURLOPT_STDERR "(3), " CURLOPT_DEBUGFUNCTION "(3), "