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
|
# md5c.tcl -
#
# Wrapper for RSA's Message Digest in C
#
# Written by Jean-Claude Wippler <jcw@equi4.com>
#
# $Id: md5c.tcl,v 1.5 2009/05/06 22:46:10 patthoyts Exp $
package require critcl; # needs critcl
# @sak notprovided md5c
package provide md5c 0.12; #
critcl::cheaders md5.h; # The RSA header file
critcl::csources md5.c; # The RSA MD5 implementation.
namespace eval ::md5 {
critcl::ccode {
#include <string.h>
#include "md5.h"
#include <assert.h>
static
Tcl_ObjType md5_type; /* fast internal access representation */
static void
md5_free_rep(Tcl_Obj *obj)
{
MD5_CTX *mp = (MD5_CTX *) obj->internalRep.otherValuePtr;
Tcl_Free((char*)mp);
}
static void
md5_dup_rep(Tcl_Obj *obj, Tcl_Obj *dup)
{
MD5_CTX *mp = (MD5_CTX *) obj->internalRep.otherValuePtr;
dup->internalRep.otherValuePtr = Tcl_Alloc(sizeof *mp);
memcpy(dup->internalRep.otherValuePtr, mp, sizeof *mp);
dup->typePtr = &md5_type;
}
static void
md5_string_rep(Tcl_Obj *obj)
{
unsigned char buf[16];
Tcl_Obj *temp;
char *str;
MD5_CTX dup = *(MD5_CTX *) obj->internalRep.otherValuePtr;
MD5Final(buf, &dup);
/* convert via a byte array to properly handle null bytes */
temp = Tcl_NewByteArrayObj(buf, sizeof buf);
Tcl_IncrRefCount(temp);
str = Tcl_GetStringFromObj(temp, &obj->length);
obj->bytes = Tcl_Alloc(obj->length + 1);
memcpy(obj->bytes, str, obj->length + 1);
Tcl_DecrRefCount(temp);
}
static int
md5_from_any(Tcl_Interp* ip, Tcl_Obj* obj)
{
assert(0);
return TCL_ERROR;
}
static
Tcl_ObjType md5_type = {
"md5c", md5_free_rep, md5_dup_rep, md5_string_rep, md5_from_any
};
}
critcl::ccommand md5c {dummy ip objc objv} {
MD5_CTX *mp;
unsigned char *data;
int size;
Tcl_Obj *obj;
if (objc < 2 || objc > 3) {
Tcl_WrongNumArgs(ip, 1, objv, "data ?context?");
return TCL_ERROR;
}
if (objc == 3) {
if (objv[2]->typePtr != &md5_type && md5_from_any(ip, objv[2]) != TCL_OK) {
return TCL_ERROR;
}
obj = objv[2];
if (Tcl_IsShared(obj)) {
obj = Tcl_DuplicateObj(obj);
}
} else {
mp = (MD5_CTX *)Tcl_Alloc(sizeof *mp);
MD5Init(mp);
obj = Tcl_NewObj();
Tcl_InvalidateStringRep(obj);
obj->internalRep.otherValuePtr = mp;
obj->typePtr = &md5_type;
}
mp = (MD5_CTX *) obj->internalRep.otherValuePtr;
data = Tcl_GetByteArrayFromObj(objv[1], &size);
MD5Update(mp, data, size);
Tcl_SetObjResult(ip, obj);
return TCL_OK;
}
}
if {[info exists pkgtest] && $pkgtest} {
proc md5c_try {} {
foreach {msg expected} {
""
"d41d8cd98f00b204e9800998ecf8427e"
"a"
"0cc175b9c0f1b6a831c399e269772661"
"abc"
"900150983cd24fb0d6963f7d28e17f72"
"message digest"
"f96b697d7cb7938d525a2f31aaf161d0"
"abcdefghijklmnopqrstuvwxyz"
"c3fcd3d76192e4007dfb496cca67e13b"
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
"d174ab98d277d9f5a5611c2c9f419d9f"
"12345678901234567890123456789012345678901234567890123456789012345678901234567890"
"57edf4a22be3c955ac49da2e2107b67a"
} {
puts "testing: ::md5::md5c \"$msg\""
binary scan [::md5::md5c $msg] H* computed
puts "computed: $computed"
if {0 != [string compare $computed $expected]} {
puts "expected: $expected"
puts "FAILED"
}
}
foreach len {10 50 100 500 1000 5000 10000} {
set blanks [format %$len.0s ""]
puts "input length $len: [time {md5c $blanks} 1000]"
}
}
md5c_try
}
|