/usr/share/tcltk/tcllib1.17/md5/md5c.tcl is in tcllib 1.17-dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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
}
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