/usr/share/tcltk/tcllib1.16/md4/md4c.tcl is in tcllib 1.16-dfsg-2.
This file is owned by root:root, with mode 0o644.
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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 | # md4c.tcl - Copyright (C) 2003 Pat Thoyts <patthoyts@users.sourceforge.net>
#
# This provides a C implementation of MD4 using the sample code from RFC1320
# and wrapping this up in a Tcl package.
#
# The tcl interface code is based upon the md5c code from critcl by JCW.
#
# INSTALLATION
# ------------
# This package uses critcl (http://wiki.tcl.tk/critcl). To build do:
# critcl -libdir <your-tcl-lib-dir> -pkg md4c md4c
#
# $Id: md4c.tcl,v 1.6 2009/05/06 22:57:50 patthoyts Exp $
package require critcl
# @sak notprovided md4c
package provide md4c 1.1.0
critcl::cheaders md4.h
critcl::csources md4.c
namespace eval ::md4 {
critcl::ccode {
#include "md4.h"
/*
* define a Tcl object type for the MD4 state
*/
static Tcl_ObjType md4_type;
static void md4_free_rep(Tcl_Obj *obj)
{
MD4_CTX *ctx = (MD4_CTX *)obj->internalRep.otherValuePtr;
Tcl_Free((char *)ctx);
}
static void md4_dup_rep(Tcl_Obj *obj, Tcl_Obj *dup)
{
MD4_CTX *ctx = (MD4_CTX *)obj->internalRep.otherValuePtr;
dup->internalRep.otherValuePtr = (MD4_CTX *)Tcl_Alloc(sizeof(MD4_CTX));
memcpy(dup->internalRep.otherValuePtr, ctx, sizeof(MD4_CTX));
dup->typePtr = &md4_type;
}
static void md4_string_rep(Tcl_Obj* obj)
{
unsigned char buf[16];
Tcl_Obj* temp;
char* str;
MD4_CTX *dup = (MD4_CTX *)obj->internalRep.otherValuePtr;
MD4Final(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 md4_from_any(Tcl_Interp* interp, Tcl_Obj* obj)
{
/* assert(0); */
return TCL_ERROR;
}
static Tcl_ObjType md4_type = {
"md4c", md4_free_rep, md4_dup_rep, md4_string_rep, md4_from_any
};
}
critcl::ccommand md4c {dummy interp objc objv} {
MD4_CTX *ctx;
unsigned char *data;
int size;
Tcl_Obj *obj;
if (objc < 2 || objc > 3) {
Tcl_WrongNumArgs(interp, 1, objv, "data ?context?");
return TCL_ERROR;
}
if (objc == 3) {
if (objv[2]->typePtr != &md4_type
&& md4_from_any(interp, objv[2]) != TCL_OK) {
return TCL_ERROR;
}
obj = objv[2];
if (Tcl_IsShared(obj)) {
obj = Tcl_DuplicateObj(obj);
}
} else {
ctx = (MD4_CTX *)Tcl_Alloc(sizeof(MD4_CTX));
MD4Init(ctx);
obj = Tcl_NewObj();
Tcl_InvalidateStringRep(obj);
obj->internalRep.otherValuePtr = ctx;
obj->typePtr = &md4_type;
}
ctx = (MD4_CTX *)obj->internalRep.otherValuePtr;
data = Tcl_GetByteArrayFromObj(objv[1], &size);
MD4Update(ctx, data, size);
Tcl_SetObjResult(interp, obj);
return TCL_OK;
}
}
# Local variables:
# mode: tcl
# indent-tabs-mode: nil
# End:
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