CURLOPT\_HTTP\_TRANSFER\_DECODING(3) Library Functions Manual CURLOPT\_HTTP\_TRANSFER\_DECODING(3)

# [NAME](#NAME)

CURLOPT\_HTTP\_TRANSFER\_DECODING - HTTP transfer decoding control

# [SYNOPSIS](#SYNOPSIS)

```
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP_TRANSFER_DECODING,


                         long enabled);
```

# [DESCRIPTION](#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](#DEFAULT)

1

# [PROTOCOLS](#PROTOCOLS)

This functionality affects http only

# [EXAMPLE](#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](#AVAILABILITY)

Added in curl 7.16.2

# [RETURN VALUE](#RETURN_VALUE)

[*curl\_easy\_setopt(3)*](/man/os/curl/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)*](/man/os/curl/libcurl-errors.3).

# [SEE ALSO](#SEE_ALSO)

[**CURLOPT\_ACCEPT\_ENCODING**(3)](/man/os/curl/CURLOPT_ACCEPT_ENCODING.3), [**CURLOPT\_HTTP\_CONTENT\_DECODING**(3)](/man/os/curl/CURLOPT_HTTP_CONTENT_DECODING.3)

2026-10-31 libcurl

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Document: CURLOPT_HTTP_TRANSFER_DECODING(3) from curl 8.23.0-r3 (Chainguard OS)
Source: https://github.com/curl/curl.git