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CURLOPT_HTTP_TRANSFER_DECODING

Section: C Library Functions (3)
Updated: 2026-03-19
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NAME

CURLOPT_HTTP_TRANSFER_DECODING - HTTP transfer decoding control

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP_TRANSFER_DECODING,
                         long enabled);

DESCRIPTION

Pass a long to tell libcurl how to act on transfer decoding. If set to zero, transfer decoding is disabled, if set to 1 it is enabled (default). libcurl does chunked transfer decoding by default unless this option is set to zero.

DEFAULT

PROTOCOLS

This functionality affects http only

EXAMPLE

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode result;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    curl_easy_setopt(curl, CURLOPT_HTTP_TRANSFER_DECODING, 0L);
    result = curl_easy_perform(curl);
  }
}

AVAILABILITY

Added in curl 7.16.2

RETURN VALUE

curl_easy_setopt(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).