NAME

       CURLOPT_SSH_PUBLIC_KEYFILE - public key file for SSH auth

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_PUBLIC_KEYFILE,
                                 char *filename);

DESCRIPTION

       Pass  a  char  pointer  pointing  to  a filename for your public key. If not used, libcurl
       defaults to $HOME/.ssh/id_dsa.pub if the  HOME  environment  variable  is  set,  and  just
       "id_dsa.pub" in the current directory if HOME is not set.

       If NULL (or an empty string) is passed to this option, libcurl passes no public key to the
       SSH library, which then rather derives it from the private key. If the SSH library  cannot
       derive  the  public  key  from the private one and no public one is provided, the transfer
       fails.

       The application does not have to keep the string around after setting this option.

DEFAULT

       NULL

PROTOCOLS

       This functionality affects scp and sftp

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file");
           curl_easy_setopt(curl, CURLOPT_SSH_PUBLIC_KEYFILE,
                            "/home/clarkkent/.ssh/id_rsa.pub");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

HISTORY

       The "" trick was added in 7.26.0

AVAILABILITY

       Added in curl 7.16.1

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.

SEE ALSO

       CURLOPT_SSH_AUTH_TYPES(3), CURLOPT_SSH_PRIVATE_KEYFILE(3)