Method: BCrypt::Engine.__bc_crypt

Defined in:
ext/mri/bcrypt_ext.c

.__bc_crypt(key, setting) ⇒ Object

Given a secret and a salt, generates a salted hash (which you can then store safely).



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# File 'ext/mri/bcrypt_ext.c', line 75

static VALUE bc_crypt(VALUE self, VALUE key, VALUE setting) {
    char * value;
    VALUE out;

    struct bc_crypt_args args;

    if(NIL_P(key) || NIL_P(setting)) return Qnil;

    /* duplicate the parameters for thread safety.  If another thread has a
     * reference to the parameters and mutates them while we are working,
     * that would be very bad.  Duping the strings means that the reference
     * isn't shared. */
    key     = rb_str_new_frozen(key);
    setting = rb_str_new_frozen(setting);

    args.data    = NULL;
    args.size    = 0xDEADBEEF;
    args.key     = NIL_P(key)     ? NULL : StringValueCStr(key);
    args.setting = NIL_P(setting) ? NULL : StringValueCStr(setting);

#ifdef HAVE_RUBY_THREAD_H
    value = rb_thread_call_without_gvl(bc_crypt_nogvl, &args, NULL, NULL);
#else
    value = bc_crypt_nogvl((void *)&args);
#endif

    if(!value || !args.data) return Qnil;

    out = rb_str_new2(value);

    RB_GC_GUARD(key);
    RB_GC_GUARD(setting);
    free(args.data);

    return out;
}