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Sortix volatile manual

This manual documents Sortix volatile, a development build that has not been officially released. You can instead view this document in the latest official manual.

CURLOPT_TRAILERDATA(3) Library Functions Manual CURLOPT_TRAILERDATA(3)

NAME

CURLOPT_TRAILERDATA - pointer passed to trailing headers callback

SYNOPSIS


#include <curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TRAILERDATA, void *userdata);

DESCRIPTION

Data pointer to be passed to the HTTP trailer callback function.

DEFAULT

NULL

PROTOCOLS

This functionality affects http only

EXAMPLE


struct MyData {
void *custom;
};

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
struct MyData data;
curl_easy_setopt(curl, CURLOPT_TRAILERDATA, &data);
}
}

AVAILABILITY

Added in curl 7.64.0

RETURN VALUE

Returns CURLE_OK.

SEE ALSO

CURLOPT_TRAILERFUNCTION(3), CURLOPT_WRITEFUNCTION(3)
2025-05-14 libcurl
Copyright 2011-2025 Jonas 'Sortie' Termansen and contributors.
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