struct ssh2_userkey *ssh2_load_userkey(const Filename *filename,
char *passphrase, const char **errorstr);
char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm,
struct ssh2_userkey *ssh2_load_userkey(const Filename *filename,
char *passphrase, const char **errorstr);
char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm,