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/************************************************
md5init.c -
$Author$
created at: Fri Aug 2 09:24:12 JST 1996
Copyright (C) 1995-1998 Yukihiro Matsumoto
************************************************/
/* This module provides an interface to the RSA Data Security,
Inc. MD5 Message-Digest Algorithm, described in RFC 1321.
It requires the files md5c.c and md5.h (which are slightly changed
from the versions in the RFC to avoid the "global.h" file.) */
#include "ruby.h"
#include "md5.h"
static VALUE cMD5;
static VALUE
md5_update(obj, str)
VALUE obj;
struct RString *str;
{
MD5_CTX *md5;
Check_Type(str, T_STRING);
Data_Get_Struct(obj, MD5_CTX, md5);
MD5Update(md5, str->ptr, str->len);
return Qnil;
}
static VALUE
md5_digest(obj)
VALUE obj;
{
MD5_CTX *md5, ctx;
unsigned char digest[16];
Data_Get_Struct(obj, MD5_CTX, md5);
ctx = *md5;
MD5Final(digest, &ctx);
return str_new(digest, 16);
}
static VALUE
md5_clone(obj)
VALUE obj;
{
VALUE clone;
MD5_CTX *md5, *md5_new;
Data_Get_Struct(obj, MD5_CTX, md5);
obj = Data_Make_Struct(CLASS_OF(obj), MD5_CTX, 0, 0, md5_new);
*md5_new = *md5;
return obj;
}
static VALUE
md5_new(argc, argv, class)
int argc;
VALUE* argv;
VALUE class;
{
int i;
VALUE arg, obj;
MD5_CTX *md5;
rb_scan_args(argc, argv, "01", &arg);
if (!NIL_P(arg)) Check_Type(arg, T_STRING);
obj = Data_Make_Struct(class, MD5_CTX, 0, 0, md5);
MD5Init(md5);
if (!NIL_P(arg)) {
md5_update(obj, arg);
}
obj_call_init(obj);
return obj;
}
Init_md5()
{
cMD5 = rb_define_class("MD5", cObject);
rb_define_singleton_method(cMD5, "new", md5_new, -1);
rb_define_method(cMD5, "update", md5_update, 1);
rb_define_method(cMD5, "digest", md5_digest, 0);
rb_define_method(cMD5, "clone", md5_clone, 0);
}
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