Class: Digest::Base

Inherits:
Class
  • Object
show all
Defined in:
digest.c

Overview

This abstract class provides a common interface to message digest implementation classes written in C.

Instance Method Summary collapse

Methods inherited from Class

digest, file, hexdigest

Methods included from Instance

#==, #digest, #digest!, #file, #hexdigest, #hexdigest!, #inspect, #length, #new, #size, #to_s

Instance Method Details

#<< ⇒ Object

:nodoc:




# File 'digest.c'

/* :nodoc: */
static VALUE
rb_digest_base_update(VALUE self, VALUE str)
{
    rb_digest_metadata_t *algo;
    void *pctx;

    algo = get_digest_base_metadata(rb_obj_class(self));

    Data_Get_Struct(self, void, pctx);

    StringValue(str);
    algo->update_func(pctx, (unsigned char *)RSTRING_PTR(str), RSTRING_LEN(str));

    return self;
}

#block_length ⇒ Object

:nodoc:




# File 'digest.c'

/* :nodoc: */
static VALUE
rb_digest_base_block_length(VALUE self)
{
    rb_digest_metadata_t *algo;

    algo = get_digest_base_metadata(rb_obj_class(self));

    return INT2NUM(algo->block_len);
}

#digest_length ⇒ Object

:nodoc:




# File 'digest.c'

/* :nodoc: */
static VALUE
rb_digest_base_digest_length(VALUE self)
{
    rb_digest_metadata_t *algo;

    algo = get_digest_base_metadata(rb_obj_class(self));

    return INT2NUM(algo->digest_len);
}

#finish ⇒ Object

:nodoc:




# File 'digest.c'

/* :nodoc: */
static VALUE
rb_digest_base_finish(VALUE self)
{
    rb_digest_metadata_t *algo;
    void *pctx;
    VALUE str;

    algo = get_digest_base_metadata(rb_obj_class(self));

    Data_Get_Struct(self, void, pctx);

    str = rb_str_new(0, algo->digest_len);
    algo->finish_func(pctx, (unsigned char *)RSTRING_PTR(str));

    /* avoid potential coredump caused by use of a finished context */
    algo->init_func(pctx);

    return str;
}

#initialize_copy ⇒ Object

:nodoc:




# File 'digest.c'

/* :nodoc: */
static VALUE
rb_digest_base_copy(VALUE copy, VALUE obj)
{
    rb_digest_metadata_t *algo;
    void *pctx1, *pctx2;

    if (copy == obj) return copy;

    rb_check_frozen(copy);

    algo = get_digest_base_metadata(rb_obj_class(copy));

    Data_Get_Struct(obj, void, pctx1);
    Data_Get_Struct(copy, void, pctx2);
    memcpy(pctx2, pctx1, algo->ctx_size);

    return copy;
}

#reset ⇒ Object

:nodoc:




# File 'digest.c'

/* :nodoc: */
static VALUE
rb_digest_base_reset(VALUE self)
{
    rb_digest_metadata_t *algo;
    void *pctx;

    algo = get_digest_base_metadata(rb_obj_class(self));

    Data_Get_Struct(self, void, pctx);

    algo->init_func(pctx);

    return self;
}

#update ⇒ Object

:nodoc:




# File 'digest.c'

/* :nodoc: */
static VALUE
rb_digest_base_update(VALUE self, VALUE str)
{
    rb_digest_metadata_t *algo;
    void *pctx;

    algo = get_digest_base_metadata(rb_obj_class(self));

    Data_Get_Struct(self, void, pctx);

    StringValue(str);
    algo->update_func(pctx, (unsigned char *)RSTRING_PTR(str), RSTRING_LEN(str));

    return self;
}