diff options
Diffstat (limited to 'ext/digest/digest.c')
| -rw-r--r-- | ext/digest/digest.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/ext/digest/digest.c b/ext/digest/digest.c index 53c05f9ef4..0e3bf47a20 100644 --- a/ext/digest/digest.c +++ b/ext/digest/digest.c @@ -16,7 +16,7 @@ #include "digest.h" static VALUE mDigest, cDigest_Base; -static ID id_metadata, id_new, id_update, id_digest; +static ID id_metadata, id_new, id_reset, id_update, id_digest; /* * Digest::Base @@ -222,6 +222,28 @@ rb_digest_base_copy(VALUE copy, VALUE obj) } static VALUE +rb_digest_base_reset(VALUE self) +{ + algo_t *algo; + void *pctx; + + algo = get_digest_base_metadata(rb_obj_class(self)); + + if (algo == NULL) { + rb_funcall(self, id_reset, 0); + + return self; + } + + Data_Get_Struct(self, void, pctx); + + memset(pctx, 0, algo->ctx_size); + algo->init_func(pctx); + + return self; +} + +static VALUE rb_digest_base_update(VALUE self, VALUE str) { algo_t *algo; @@ -407,6 +429,7 @@ Init_digest(void) rb_define_method(cDigest_Base, "initialize", rb_digest_base_init, -1); rb_define_method(cDigest_Base, "initialize_copy", rb_digest_base_copy, 1); + rb_define_method(cDigest_Base, "reset", rb_digest_base_reset, 0); rb_define_method(cDigest_Base, "update", rb_digest_base_update, 1); rb_define_method(cDigest_Base, "<<", rb_digest_base_lshift, 1); rb_define_method(cDigest_Base, "digest", rb_digest_base_digest, 0); @@ -418,6 +441,7 @@ Init_digest(void) id_metadata = rb_intern("metadata"); id_new = rb_intern("new"); + id_reset = rb_intern("reset"); id_update = rb_intern("update"); id_digest = rb_intern("digest"); } |