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Diffstat (limited to 'ruby_1_8_6/ext/digest/digest.c')
-rw-r--r--ruby_1_8_6/ext/digest/digest.c642
1 files changed, 0 insertions, 642 deletions
diff --git a/ruby_1_8_6/ext/digest/digest.c b/ruby_1_8_6/ext/digest/digest.c
deleted file mode 100644
index 0b910e8c47..0000000000
--- a/ruby_1_8_6/ext/digest/digest.c
+++ /dev/null
@@ -1,642 +0,0 @@
-/************************************************
-
- digest.c -
-
- $Author$
- created at: Fri May 25 08:57:27 JST 2001
-
- Copyright (C) 1995-2001 Yukihiro Matsumoto
- Copyright (C) 2001-2006 Akinori MUSHA
-
- $RoughId: digest.c,v 1.16 2001/07/13 15:38:27 knu Exp $
- $Id$
-
-************************************************/
-
-#include "digest.h"
-
-static VALUE rb_mDigest;
-static VALUE rb_mDigest_Instance;
-static VALUE rb_cDigest_Class;
-static VALUE rb_cDigest_Base;
-
-static ID id_reset, id_update, id_finish, id_digest, id_hexdigest, id_digest_length;
-static ID id_metadata;
-
-RUBY_EXTERN void Init_digest_base(void);
-
-/*
- * Document-module: Digest
- *
- * This module provides a framework for message digest libraries.
- */
-
-static VALUE
-hexencode_str_new(VALUE str_digest)
-{
- char *digest;
- size_t digest_len;
- int i;
- VALUE str;
- char *p;
- static const char hex[] = {
- '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- 'a', 'b', 'c', 'd', 'e', 'f'
- };
-
- StringValue(str_digest);
- digest = RSTRING_PTR(str_digest);
- digest_len = RSTRING_LEN(str_digest);
-
- if (LONG_MAX / 2 < digest_len) {
- rb_raise(rb_eRuntimeError, "digest string too long");
- }
-
- str = rb_str_new(0, digest_len * 2);
-
- for (i = 0, p = RSTRING_PTR(str); i < digest_len; i++) {
- unsigned char byte = digest[i];
-
- p[i + i] = hex[byte >> 4];
- p[i + i + 1] = hex[byte & 0x0f];
- }
-
- return str;
-}
-
-/*
- * call-seq:
- * Digest.hexencode(string) -> hexencoded_string
- *
- * Generates a hex-encoded version of a given _string_.
- */
-static VALUE
-rb_digest_s_hexencode(VALUE klass, VALUE str)
-{
- return hexencode_str_new(str);
-}
-
-/*
- * Document-module: Digest::Instance
- *
- * This module provides instance methods for a digest implementation
- * object to calculate message digest values.
- */
-
-/*
- * call-seq:
- * digest_obj.update(string) -> digest_obj
- * digest_obj << string -> digest_obj
- *
- * Updates the digest using a given _string_ and returns self.
- *
- * The update() method and the left-shift operator are overridden by
- * each implementation subclass. (One should be an alias for the
- * other)
- */
-static VALUE
-rb_digest_instance_update(VALUE self, VALUE str)
-{
- rb_raise(rb_eRuntimeError, "%s does not implement update()", RSTRING_PTR(rb_inspect(self)));
-}
-
-/*
- * call-seq:
- * digest_obj.instance_eval { finish } -> digest_obj
- *
- * Finishes the digest and returns the resulting hash value.
- *
- * This method is overridden by each implementation subclass and often
- * made private, because some of those subclasses may leave internal
- * data uninitialized. Do not call this method from outside. Use
- * #digest!() instead, which ensures that internal data be reset for
- * security reasons.
- */
-static VALUE
-rb_digest_instance_finish(VALUE self)
-{
- rb_raise(rb_eRuntimeError, "%s does not implement finish()", RSTRING_PTR(rb_inspect(self)));
-}
-
-/*
- * call-seq:
- * digest_obj.reset -> digest_obj
- *
- * Resets the digest to the initial state and returns self.
- *
- * This method is overridden by each implementation subclass.
- */
-static VALUE
-rb_digest_instance_reset(VALUE self)
-{
- rb_raise(rb_eRuntimeError, "%s does not implement reset()", RSTRING_PTR(rb_inspect(self)));
-}
-
-/*
- * call-seq:
- * digest_obj.new -> another_digest_obj
- *
- * Returns a new, initialized copy of the digest object. Equivalent
- * to digest_obj.clone().reset().
- */
-static VALUE
-rb_digest_instance_new(VALUE self)
-{
- VALUE clone = rb_obj_clone(self);
- rb_funcall(clone, id_reset, 0);
- return clone;
-}
-
-/*
- * call-seq:
- * digest_obj.digest -> string
- * digest_obj.digest(string) -> string
- *
- * If none is given, returns the resulting hash value of the digest,
- * keeping the digest's state.
- *
- * If a _string_ is given, returns the hash value for the given
- * _string_, resetting the digest to the initial state before and
- * after the process.
- */
-static VALUE
-rb_digest_instance_digest(int argc, VALUE *argv, VALUE self)
-{
- VALUE str, value;
-
- if (rb_scan_args(argc, argv, "01", &str) > 0) {
- rb_funcall(self, id_reset, 0);
- rb_funcall(self, id_update, 1, str);
- value = rb_funcall(self, id_finish, 0);
- rb_funcall(self, id_reset, 0);
- } else {
- VALUE clone = rb_obj_clone(self);
-
- value = rb_funcall(clone, id_finish, 0);
- rb_funcall(clone, id_reset, 0);
- }
-
- return value;
-}
-
-/*
- * call-seq:
- * digest_obj.digest! -> string
- *
- * Returns the resulting hash value and resets the digest to the
- * initial state.
- */
-static VALUE
-rb_digest_instance_digest_bang(VALUE self)
-{
- VALUE value = rb_funcall(self, id_finish, 0);
- rb_funcall(self, id_reset, 0);
-
- return value;
-}
-
-/*
- * call-seq:
- * digest_obj.hexdigest -> string
- * digest_obj.hexdigest(string) -> string
- *
- * If none is given, returns the resulting hash value of the digest in
- * a hex-encoded form, keeping the digest's state.
- *
- * If a _string_ is given, returns the hash value for the given
- * _string_ in a hex-encoded form, resetting the digest to the initial
- * state before and after the process.
- */
-static VALUE
-rb_digest_instance_hexdigest(int argc, VALUE *argv, VALUE self)
-{
- VALUE str, value;
-
- if (rb_scan_args(argc, argv, "01", &str) > 0) {
- rb_funcall(self, id_reset, 0);
- rb_funcall(self, id_update, 1, str);
- value = rb_funcall(self, id_finish, 0);
- rb_funcall(self, id_reset, 0);
- } else {
- VALUE clone = rb_obj_clone(self);
-
- value = rb_funcall(clone, id_finish, 0);
- rb_funcall(clone, id_reset, 0);
- }
-
- return hexencode_str_new(value);
-}
-
-/*
- * call-seq:
- * digest_obj.hexdigest! -> string
- *
- * Returns the resulting hash value and resets the digest to the
- * initial state.
- */
-static VALUE
-rb_digest_instance_hexdigest_bang(VALUE self)
-{
- VALUE value = rb_funcall(self, id_finish, 0);
- rb_funcall(self, id_reset, 0);
-
- return hexencode_str_new(value);
-}
-
-/*
- * call-seq:
- * digest_obj.to_s -> string
- *
- * Returns digest_obj.hexdigest().
- */
-static VALUE
-rb_digest_instance_to_s(VALUE self)
-{
- return rb_funcall(self, id_hexdigest, 0);
-}
-
-/*
- * call-seq:
- * digest_obj.inspect -> string
- *
- * Creates a printable version of the digest object.
- */
-static VALUE
-rb_digest_instance_inspect(VALUE self)
-{
- VALUE str;
- size_t digest_len = 32; /* about this size at least */
- char *cname;
-
- cname = rb_obj_classname(self);
-
- /* #<Digest::ClassName: xxxxx...xxxx> */
- str = rb_str_buf_new(2 + strlen(cname) + 2 + digest_len * 2 + 1);
- rb_str_buf_cat2(str, "#<");
- rb_str_buf_cat2(str, cname);
- rb_str_buf_cat2(str, ": ");
- rb_str_buf_append(str, rb_digest_instance_hexdigest(0, 0, self));
- rb_str_buf_cat2(str, ">");
- return str;
-}
-
-/*
- * call-seq:
- * digest_obj == another_digest_obj -> boolean
- * digest_obj == string -> boolean
- *
- * If a string is given, checks whether it is equal to the hex-encoded
- * hash value of the digest object. If another digest instance is
- * given, checks whether they have the same hash value. Otherwise
- * returns false.
- */
-static VALUE
-rb_digest_instance_equal(VALUE self, VALUE other)
-{
- VALUE str1, str2;
-
- if (rb_obj_is_kind_of(other, rb_mDigest_Instance) == Qtrue) {
- str1 = rb_digest_instance_digest(0, 0, self);
- str2 = rb_digest_instance_digest(0, 0, other);
- } else {
- str1 = rb_digest_instance_to_s(self);
- str2 = other;
- }
-
- /* never blindly assume that subclass methods return strings */
- StringValue(str1);
- StringValue(str2);
-
- if (RSTRING_LEN(str1) == RSTRING_LEN(str2) &&
- rb_str_cmp(str1, str2) == 0) {
- return Qtrue;
- }
- return Qfalse;
-}
-
-/*
- * call-seq:
- * digest_obj.digest_length -> integer
- *
- * Returns the length of the hash value of the digest.
- *
- * This method should be overridden by each implementation subclass.
- * If not, digest_obj.digest().length() is returned.
- */
-static VALUE
-rb_digest_instance_digest_length(VALUE self)
-{
- /* subclasses really should redefine this method */
- VALUE digest = rb_digest_instance_digest(0, 0, self);
-
- /* never blindly assume that #digest() returns a string */
- StringValue(digest);
- return INT2NUM(RSTRING_LEN(digest));
-}
-
-/*
- * call-seq:
- * digest_obj.length -> integer
- * digest_obj.size -> integer
- *
- * Returns digest_obj.digest_length().
- */
-static VALUE
-rb_digest_instance_length(VALUE self)
-{
- return rb_funcall(self, id_digest_length, 0);
-}
-
-/*
- * call-seq:
- * digest_obj.block_length -> integer
- *
- * Returns the block length of the digest.
- *
- * This method is overridden by each implementation subclass.
- */
-static VALUE
-rb_digest_instance_block_length(VALUE self)
-{
- rb_raise(rb_eRuntimeError, "%s does not implement block_length()", RSTRING_PTR(rb_inspect(self)));
-}
-
-/*
- * Document-class: Digest::Class
- *
- * This module stands as a base class for digest implementation
- * classes.
- */
-
-/*
- * call-seq:
- * Digest::Class.digest(string, *parameters) -> hash_string
- *
- * Returns the hash value of a given _string_. This is equivalent to
- * Digest::Class.new(*parameters).digest(string), where extra
- * _parameters_, if any, are passed through to the constructor and the
- * _string_ is passed to #digest().
- */
-static VALUE
-rb_digest_class_s_digest(int argc, VALUE *argv, VALUE klass)
-{
- VALUE str;
- volatile VALUE obj;
-
- if (argc < 1) {
- rb_raise(rb_eArgError, "no data given");
- }
-
- str = *argv++;
- argc--;
-
- StringValue(str);
-
- obj = rb_obj_alloc(klass);
- rb_obj_call_init(obj, argc, argv);
-
- return rb_funcall(obj, id_digest, 1, str);
-}
-
-/*
- * call-seq:
- * Digest::Class.hexdigest(string[, ...]) -> hash_string
- *
- * Returns the hex-encoded hash value of a given _string_. This is
- * almost equivalent to
- * Digest.hexencode(Digest::Class.new(*parameters).digest(string)).
- */
-static VALUE
-rb_digest_class_s_hexdigest(int argc, VALUE *argv, VALUE klass)
-{
- return hexencode_str_new(rb_funcall2(klass, id_digest, argc, argv));
-}
-
-/*
- * Document-class: Digest::Base
- *
- * This abstract class provides a common interface to message digest
- * implementation classes written in C.
- */
-
-static rb_digest_metadata_t *
-get_digest_base_metadata(VALUE klass)
-{
- VALUE p;
- VALUE obj;
- rb_digest_metadata_t *algo;
-
- for (p = klass; p; p = RCLASS(p)->super) {
- if (rb_ivar_defined(p, id_metadata)) {
- obj = rb_ivar_get(p, id_metadata);
- break;
- }
- }
-
- if (!p)
- rb_raise(rb_eRuntimeError, "Digest::Base cannot be directly inherited in Ruby");
-
- Data_Get_Struct(obj, rb_digest_metadata_t, algo);
-
- switch (algo->api_version) {
- case 2:
- break;
-
- /*
- * put conversion here if possible when API is updated
- */
-
- default:
- rb_raise(rb_eRuntimeError, "Incompatible digest API version");
- }
-
- return algo;
-}
-
-static VALUE
-rb_digest_base_alloc(VALUE klass)
-{
- rb_digest_metadata_t *algo;
- VALUE obj;
- void *pctx;
-
- if (klass == rb_cDigest_Base) {
- rb_raise(rb_eNotImpError, "Digest::Base is an abstract class");
- }
-
- algo = get_digest_base_metadata(klass);
-
- pctx = xmalloc(algo->ctx_size);
- algo->init_func(pctx);
-
- obj = Data_Wrap_Struct(klass, 0, free, pctx);
-
- return obj;
-}
-
-/* :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;
-}
-
-/* :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;
-}
-
-/* :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;
-}
-
-/* :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;
-}
-
-/* :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);
-}
-
-/* :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);
-}
-
-void
-Init_digest(void)
-{
- id_reset = rb_intern("reset");
- id_update = rb_intern("update");
- id_finish = rb_intern("finish");
- id_digest = rb_intern("digest");
- id_hexdigest = rb_intern("hexdigest");
- id_digest_length = rb_intern("digest_length");
-
- /*
- * module Digest
- */
- rb_mDigest = rb_define_module("Digest");
-
- /* module functions */
- rb_define_module_function(rb_mDigest, "hexencode", rb_digest_s_hexencode, 1);
-
- /*
- * module Digest::Instance
- */
- rb_mDigest_Instance = rb_define_module_under(rb_mDigest, "Instance");
-
- /* instance methods that should be overridden */
- rb_define_method(rb_mDigest_Instance, "update", rb_digest_instance_update, 1);
- rb_define_method(rb_mDigest_Instance, "<<", rb_digest_instance_update, 1);
- rb_define_private_method(rb_mDigest_Instance, "finish", rb_digest_instance_finish, 0);
- rb_define_method(rb_mDigest_Instance, "reset", rb_digest_instance_reset, 0);
- rb_define_method(rb_mDigest_Instance, "digest_length", rb_digest_instance_digest_length, 0);
- rb_define_method(rb_mDigest_Instance, "block_length", rb_digest_instance_block_length, 0);
-
- /* instance methods that may be overridden */
- rb_define_method(rb_mDigest_Instance, "==", rb_digest_instance_equal, 1);
- rb_define_method(rb_mDigest_Instance, "inspect", rb_digest_instance_inspect, 0);
-
- /* instance methods that need not usually be overridden */
- rb_define_method(rb_mDigest_Instance, "new", rb_digest_instance_new, 0);
- rb_define_method(rb_mDigest_Instance, "digest", rb_digest_instance_digest, -1);
- rb_define_method(rb_mDigest_Instance, "digest!", rb_digest_instance_digest_bang, 0);
- rb_define_method(rb_mDigest_Instance, "hexdigest", rb_digest_instance_hexdigest, -1);
- rb_define_method(rb_mDigest_Instance, "hexdigest!", rb_digest_instance_hexdigest_bang, 0);
- rb_define_method(rb_mDigest_Instance, "to_s", rb_digest_instance_to_s, 0);
- rb_define_method(rb_mDigest_Instance, "length", rb_digest_instance_length, 0);
- rb_define_method(rb_mDigest_Instance, "size", rb_digest_instance_length, 0);
-
- /*
- * class Digest::Class
- */
- rb_cDigest_Class = rb_define_class_under(rb_mDigest, "Class", rb_cObject);
- rb_include_module(rb_cDigest_Class, rb_mDigest_Instance);
-
- /* class methods */
- rb_define_singleton_method(rb_cDigest_Class, "digest", rb_digest_class_s_digest, -1);
- rb_define_singleton_method(rb_cDigest_Class, "hexdigest", rb_digest_class_s_hexdigest, -1);
-
- id_metadata = rb_intern("metadata");
-
- /* class Digest::Base < Digest::Class */
- rb_cDigest_Base = rb_define_class_under(rb_mDigest, "Base", rb_cDigest_Class);
-
- rb_define_alloc_func(rb_cDigest_Base, rb_digest_base_alloc);
-
- rb_define_method(rb_cDigest_Base, "initialize_copy", rb_digest_base_copy, 1);
- rb_define_method(rb_cDigest_Base, "reset", rb_digest_base_reset, 0);
- rb_define_method(rb_cDigest_Base, "update", rb_digest_base_update, 1);
- rb_define_method(rb_cDigest_Base, "<<", rb_digest_base_update, 1);
- rb_define_private_method(rb_cDigest_Base, "finish", rb_digest_base_finish, 0);
- rb_define_method(rb_cDigest_Base, "digest_length", rb_digest_base_digest_length, 0);
- rb_define_method(rb_cDigest_Base, "block_length", rb_digest_base_block_length, 0);
-}