CURLOPT_SSH_COMPRESSION - Man Page

#include <curl/curl.h>

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

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.

0, disabled

This functionality affects scp and sftp

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);
  }
}

Added in curl 7.56.0

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

CURLOPT_ACCEPT_ENCODING(3), CURLOPT_TRANSFER_ENCODING(3)

curl_easy_setopt(3), libcurl-symbols(3).