# stub library C source files to compile in TEA_ADD_STUB_SOURCES,
# and runtime Tcl library files in TEA_ADD_TCL_SOURCES.
# This defines PKG(_STUB)_SOURCES, PKG(_STUB)_OBJECTS, PKG_HEADERS
# and PKG_TCL_SOURCES.
#-----------------------------------------------------------------------


    vars="tls.c tlsBIO.c tlsDigest.c tlsIO.c tlsX509.c"
    for i in $vars; do
	case $i in
	    \$*)
		# allow $-var names
		PKG_SOURCES="$PKG_SOURCES $i"
		PKG_OBJECTS="$PKG_OBJECTS $i"
		;;

# public headers that need to be installed in TEA_ADD_HEADERS,
# stub library C source files to compile in TEA_ADD_STUB_SOURCES,
# and runtime Tcl library files in TEA_ADD_TCL_SOURCES.
# This defines PKG(_STUB)_SOURCES, PKG(_STUB)_OBJECTS, PKG_HEADERS
# and PKG_TCL_SOURCES.
#-----------------------------------------------------------------------

TEA_ADD_SOURCES([tls.c tlsBIO.c tlsDigest.c tlsIO.c tlsX509.c])
TEA_ADD_HEADERS([generic/tls.h])
TEA_ADD_INCLUDES([])
TEA_ADD_LIBS([])
TEA_ADD_CFLAGS([])
TEA_ADD_STUB_SOURCES([])
TEA_ADD_TCL_SOURCES([library/tls.tcl])

/********************/
/* Commands         */
/********************/

/*
 *-------------------------------------------------------------------
 *

























































































































 * Hash List Command --
 *
 *	Return a list of all valid hash algorithms or message digests.
 *
 * Results:
 *	A standard Tcl result list.
 *

    Tcl_CreateObjCommand(interp, "tls::unimport", UnimportObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::status", StatusObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);

    Tcl_CreateObjCommand(interp, "tls::ciphers", CiphersObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::protocols", ProtocolsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);

    Tls_DigestCommands(interp);
    Tcl_CreateObjCommand(interp, "tls::digests", DigestListCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);





    if (interp) {
	Tcl_Eval(interp, tlsTclInitScript);
    }

    return Tcl_PkgProvide(interp, PACKAGE_NAME, PACKAGE_VERSION);
}

/*
 * Digest Commands
 *
 * Copyright (C) 2023 Brian O'Hagan
 *
 */

#include "tlsInt.h"
#include <tcl.h>
#include <stdio.h>
#include <string.h>
#include <openssl/evp.h>

/* Constants */
const char *hex = "0123456789ABCDEF";


/*******************************************************************/

/*
 *-------------------------------------------------------------------
 *
 * Hash Calc --
 *
 *	Calculate message digest of data using type hash algorithm.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
int
HashCalc(Tcl_Interp *interp, int objc, Tcl_Obj *const objv[], const EVP_MD *type) {
    char *data;
    int len;
    unsigned int mdlen;
    unsigned char mdbuf[EVP_MAX_MD_SIZE];

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "data");
	return TCL_ERROR;
    }

    /* Get data */
    data = Tcl_GetByteArrayFromObj(objv[1], &len);
    if (data == NULL || len == 0) {
	Tcl_SetResult(interp, "No data", NULL);
	return TCL_ERROR;
    }

    /* Calculate hash value, create hex representation, and write to result */
    if (EVP_Digest(data, (size_t) len, mdbuf, &mdlen, type, NULL)) {
	Tcl_Obj *resultObj;
	unsigned char *ptr;
	resultObj = Tcl_NewObj();
	ptr = Tcl_SetByteArrayLength(resultObj, mdlen*2);

	for (unsigned int i = 0; i < mdlen; i++) {
	    *ptr++ = hex[(mdbuf[i] >> 4) & 0x0F];
	    *ptr++ = hex[mdbuf[i] & 0x0F];
	}
	Tcl_SetObjResult(interp, resultObj);
    } else {
	Tcl_SetResult(interp, "Hash calculation error", NULL);
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * Hash Commands --
 *
 *	Return the digest as a hex string for data using type message digest.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
DigestObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    int len;
    const char *name;
    const EVP_MD *type;

    if (objc != 3) {
	Tcl_WrongNumArgs(interp, 1, objv, "type data");
	return TCL_ERROR;
    }

    name = Tcl_GetStringFromObj(objv[1],&len);
    if (name == NULL || (type = EVP_get_digestbyname(name)) == NULL) {
	Tcl_AppendResult(interp, "Invalid digest type \"", name, "\"", NULL);
	return TCL_ERROR;
    }
    objc--;
    objv++;
    return HashCalc(interp, objc, objv, type);
}

/*
 * Command to Calculate MD4 Message Digest
 */
int
DigestMD4Cmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    return HashCalc(interp, objc, objv, EVP_md4());
}

/*
 * Command to Calculate MD5 Message Digest
 */
int
DigestMD5Cmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    return HashCalc(interp, objc, objv, EVP_md5());
}

/*
 * Command to Calculate SHA-1 Hash
 */
int
DigestSHA1Cmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    return HashCalc(interp, objc, objv, EVP_sha1());
}

/*
 * Command to Calculate SHA2 SHA-256 Hash
 */
int
DigestSHA256Cmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
    return HashCalc(interp, objc, objv, EVP_sha256());
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_DigestCommands --
 *
 *	Create digest commands
 *
 * Returns:
 *	TCL_OK or TCL_ERROR
 *
 * Side effects:
 *	Creates commands
 *
 *-------------------------------------------------------------------
 */
int Tls_DigestCommands(Tcl_Interp *interp) {
    Tcl_CreateObjCommand(interp, "tls::digest", DigestObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::md4", DigestMD4Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::md5", DigestMD5Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::sha1", DigestSHA1Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    Tcl_CreateObjCommand(interp, "tls::sha256", DigestSHA256Cmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
    return TCL_OK;
}

Tcl_Obj         *Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert);
Tcl_Obj		*Tls_NewCAObj(Tcl_Interp *interp, const SSL *ssl, int peer);
void            Tls_Error(State *statePtr, char *msg);
void            Tls_Free(char *blockPtr);
void            Tls_Clean(State *statePtr);
int             Tls_WaitForConnect(State *statePtr, int *errorCodePtr, int handshakeFailureIsPermanent);
int             Tls_DigestCommands(Tcl_Interp *interp);

BIO             *BIO_new_tcl(State* statePtr, int flags);

#define PTR2INT(x) ((int) ((intptr_t) (x)))

#endif /* _TLSINT_H */

# Define the object files and resource file that make up the extension.
# Note the resource file does not makes sense if doing a static library build
# hence it is under that condition. TMP_DIR is the output directory
# defined by rules for object files.
PRJ_OBJS = $(TMP_DIR)\tls.obj \
	$(TMP_DIR)\tlsBIO.obj \
	$(TMP_DIR)\tlsDigest.obj \
	$(TMP_DIR)\tlsIO.obj \
	$(TMP_DIR)\tlsX509.obj

# Define any additional project include flags
# SSL_INSTALL_FOLDER = with the OpenSSL installation folder following.
PRJ_INCLUDES = -I"$(SSL_INSTALL_FOLDER)\include" -I"$(OPENSSL_INSTALL_DIR)\include"

# Define any additional compiler flags that might be required for the project
PRJ_DEFINES = -D NO_SSL2 -D NO_SSL3 -D _CRT_SECURE_NO_WARNINGS

#
# SSL Libs:
#    1. ${LIBCRYPTO}.dll
#    2. ${LIBSSL}.dll
# Where LIBCRYPTO (#1.) and LIBSSL (#2.) are defined as follows:
#    v1.1: libcrypto-1.1-x64.dll and libssl-1.1-x64.dll
#    v3: libcrypto-3-x64.dll and libssl-3-x64.dll
# On *nix libcrypto.so.* and libssl.so.* (where suffix is a version indicator).
#
PRJ_LIBS = \
	"$(SSL_INSTALL_FOLDER)\lib\libssl.lib" \
	"$(SSL_INSTALL_FOLDER)\lib\libcrypto.lib" \
	WS2_32.LIB GDI32.LIB ADVAPI32.LIB CRYPT32.LIB USER32.LIB

# Define the standard targets
!include "targets.vc"

# Project specific targets

all:

clean: default-clean

# We must define a pkgindex target that will create a pkgIndex.tcl
# file in the $(OUT_DIR) directory. We can just redirect to the
# default-pkgindex target for our sample extension.
pkgindex: default-pkgindex

# The default install target only installs binaries and scripts so add
# an additional target for our documentation. Note this *adds* a target
# since no commands are listed after it. The original targets for
# install (from targets.vc) will remain.
install: default-pkgindex-tea default-install default-install-docs-html

# Test package
test: default-test