---

c: Copyright (C) Daniel Stenberg, <daniel.se>, et al. SPDX-License-Identifier: curl Title: CURLOPT_SSH_COMPRESSION Section: 3 Source: libcurl See-also:

• CURLOPT_ACCEPT_ENCODING (3)
• CURLOPT_TRANSFER_ENCODING (3)

---

NAME

CURLOPT_SSH_COMPRESSION - enable SSH compression

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_COMPRESSION, long enable);

DESCRIPTION

Pass a long as parameter set to 1L to enable or 0L to disable.

Enables built-in SSH compression. This is a request, not an order; the server may or may not do it.

DEFAULT

0, disabled

PROTOCOLS

All SSH based protocols: SCP, SFTP

EXAMPLE

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com");

    /* enable built-in compression */
    curl_easy_setopt(curl, CURLOPT_SSH_COMPRESSION, 1L);

    /* Perform the request */
    curl_easy_perform(curl);
  }
}

AVAILABILITY

Added in 7.56.0

RETURN VALUE

Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.