Method: Etc.getlogin

Defined in:
etc.c

.getlogin ⇒ Object

getlogin -> String

Returns the short user name of the currently logged in user. Unfortunately, it is often rather easy to fool ::getlogin.

Avoid ::getlogin for security-related purposes.

If ::getlogin fails, try ::getpwuid.

See the unix manpage for getpwuid(3) for more detail.

e.g.

Etc.getlogin -> 'guest'



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# File 'etc.c', line 114

static VALUE
etc_getlogin(VALUE obj)
{
    char *login;

#ifdef HAVE_GETLOGIN
    login = getlogin();
    if (!login) login = getenv("USER");
#else
    login = getenv("USER");
#endif

    if (login) {
#ifdef _WIN32
	rb_encoding *extenc = rb_utf8_encoding();
#else
	rb_encoding *extenc = rb_locale_encoding();
#endif
	return rb_external_str_new_with_enc(login, strlen(login), extenc);
    }

    return Qnil;
}