1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/***********************************************************
Copyright 1992 by Stichting Mathematisch Centrum, Amsterdam, The
Netherlands.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the names of Stichting Mathematisch
Centrum or CWI not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior permission.
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
******************************************************************/
/* MD5 module */
/* This module provides an interface to a message digest algorithm,
MD5 in this case */
/* MD5 objects */
#include "allobjects.h"
#include "modsupport.h" /* For getargs() etc. */
#include "md5.h"
typedef struct {
OB_HEAD
MD5_CTX md5; /* the context holder */
} md5object;
extern typeobject MD5type; /* Really static, forward */
#define is_md5object(v) ((v)->ob_type == &MD5type)
/* #define MD5_DEBUG */
static md5object *
newmd5object()
{
md5object *md5p;
#ifdef MD5_DEBUG
fputs( "md5_object() called...\n", stderr );
#endif /* def MD5_DEBUG */
md5p = NEWOBJ(md5object, &MD5type);
if (md5p == NULL)
return NULL;
MD5Init(&md5p->md5); /* actual initialisation */
return md5p;
} /* newmd5object() */
/* MD5 methods */
static void
md5_dealloc(md5p)
md5object *md5p;
{
#ifdef MD5_DEBUG
fputs( "md5_dealloc() called...\n", stderr );
#endif /* def MD5_DEBUG */
DEL(md5p);
} /* md5_dealloc() */
/* MD5 initialisation */
static object *
MD5_md5(self, args)
object *self;
object *args;
{
md5object *md5p;
char *cp = (char *)NULL;
int len;
#ifdef MD5_DEBUG
fputs("MD5_md5() called...\n", stderr);
#endif /* def MD5_DEBUG */
if (!getargs(args, "")) {
err_clear();
if (!getargs(args, "s#", &cp, &len))
return NULL;
}
if ((md5p = newmd5object()) == NULL)
return NULL;
if (cp)
MD5Update(&md5p->md5, cp, len);
return (object *)md5p;
} /* MD5_md5() */
/* MD5 methods-as-attributes */
static object *
md5_update(self, args)
md5object *self;
object *args;
{
char *cp;
int len;
if (!getargs(args, "s#", &cp, &len))
return NULL;
MD5Update(&self->md5, cp, len);
INCREF(None);
return None;
} /* md5_update() */
#define DIGESTLEN 16 /* this is used twice--walrus@umich.edu */
static object *
md5_digest(self, args)
md5object *self;
object *args;
{
MD5_CTX mdContext;
char aDigest[DIGESTLEN];
if (!getnoarg(args))
return NULL;
/* make a temporary copy, and perform the final */
mdContext = self->md5;
MD5Final(aDigest, &mdContext);
return newsizedstringobject((char *)aDigest, DIGESTLEN);
} /* md5_digest() */
#undef DIGESTLEN
static object *
md5_copy(self, args)
md5object *self;
object *args;
{
md5object *md5p;
if (!getnoarg(args))
return NULL;
if ((md5p = newmd5object()) == NULL)
return NULL;
md5p->md5 = self->md5;
return (object *)md5p;
} /* md5_copy() */
static struct methodlist md5_methods[] = {
{"update", md5_update},
{"digest", md5_digest},
{"copy", md5_copy},
{NULL, NULL} /* sentinel */
};
static object *
md5_getattr(self, name)
md5object *self;
char *name;
{
return findmethod(md5_methods, (object *)self, name);
} /* md5_getattr() */
#ifndef _AIX
static
#endif
typeobject MD5type = {
OB_HEAD_INIT(&Typetype)
0, /*ob_size*/
"md5", /*tp_name*/
sizeof(md5object), /*tp_size*/
0, /*tp_itemsize*/
/* methods */
md5_dealloc, /*tp_dealloc*/
0, /*tp_print*/
md5_getattr, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, /*tp_repr*/
0, /*tp_as_number*/
};
/* List of functions exported by this module */
static struct methodlist md5_functions[] = {
{"md5", MD5_md5},
{NULL, NULL} /* Sentinel */
};
/* Initialize this module. */
void
initmd5()
{
#ifdef MD5_DEBUG
fputs( "initmd5() called...\n", stderr );
#endif /* def MD5_DEBUG */
(void)initmodule("md5", md5_functions);
} /* initmd5() */
#ifdef MAKEDUMMYINT
int _md5_dummy_int; /* XXX otherwise, we're .bss-less (DYNLOAD->Jack?) */
#endif /* def MAKEDUMMYINT */
|
