TclTLS
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Changes In Branch x-header-work Excluding Merge-Ins

This is equivalent to a diff from fb6a7404da to bd8b53ced2

2019-06-19
18:25
TclTLS 1.7.19 check-in: 3d0bcddafd user: rkeene tags: tls-1-7, tls-1-7-19
2019-05-29
18:52
Try to find headers in a specific path and do not allow "mp_int"/"mp_digit" to conflict with other things Leaf check-in: bd8b53ced2 user: rkeene tags: x-header-work
2019-04-25
16:51
TclTLS 1.7.18 check-in: fb6a7404da user: rkeene tags: tls-1-7, tls-1-7-18
16:51
Merged in changes from trunk check-in: a64e691ada user: rkeene tags: tls-1-7

Modified aclocal/tcltls_openssl.m4 from [c4132f494e] to [4ea3fa4aea].
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			AC_CHECK_FUNC($2,, [
				proto_check='false'
			])
		], [
			AC_LANG_PUSH(C)
			AC_MSG_CHECKING([for $3 protocol support])
			AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
#ifdef OPENSSL_HEADER_PREFIX
#  define OPENSSL_HEADER(header) <OPENSSL_HEADER_PREFIX/header>
#else
#  define OPENSSL_HEADER(header) <header>
#endif
#include <openssl/ssl.h>
#include <openssl/opensslv.h>
#include OPENSSL_HEADER(openssl/ssl.h)
#include OPENSSL_HEADER(openssl/opensslv.h)
#if (SSLEAY_VERSION_NUMBER >= 0x0907000L)
# include <openssl/conf.h>
# include OPENSSL_HEADER(openssl/conf.h)
#endif
			], [
int x = $5;
			])], [
				AC_MSG_RESULT([yes])
			], [
				AC_MSG_RESULT([no])
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		if test -e "$openssldir/libssl.$SHOBJEXT"; then
			TCLTLS_SSL_LIBS="-L$openssldir -lssl -lcrypto"
			openssldir="`AS_DIRNAME(["$openssldir"])`"
		else
			TCLTLS_SSL_LIBS="-L$openssldir/lib -lssl -lcrypto"
		fi
		TCLTLS_SSL_CFLAGS="-I$openssldir/include"
		if test -n "$openssldir"; then
			AC_DEFINE_UNQUOTED(OPENSSL_HEADER_PREFIX, [$openssldir/include], [Path to OpenSSL headers])
		fi
		TCLTLS_SSL_CPPFLAGS="-I$openssldir/include"
	fi

	pkgConfigExtraArgs=''
	if test "$TCLEXT_BUILD" = "static" -o "$TCLEXT_TLS_STATIC_SSL" = 'yes'; then
		pkgConfigExtraArgs='--static'
	fi
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		TCLTLS_SSL_LIBS="`"${PKGCONFIG}" openssl --libs $pkgConfigExtraArgs`" || AC_MSG_ERROR([Unable to get OpenSSL Configuration])
	fi
	if test -z "$TCLTLS_SSL_CFLAGS"; then
		TCLTLS_SSL_CFLAGS="`"${PKGCONFIG}" openssl --cflags-only-other $pkgConfigExtraArgs`" || AC_MSG_ERROR([Unable to get OpenSSL Configuration])
	fi
	if test -z "$TCLTLS_SSL_CPPFLAGS"; then
		TCLTLS_SSL_CPPFLAGS="`"${PKGCONFIG}" openssl --cflags-only-I $pkgConfigExtraArgs`" || AC_MSG_ERROR([Unable to get OpenSSL Configuration])
		opensslincdir="$(echo "${TCLTLS_SSL_CPPFLAGS}" | sed 's@^.*-I@@')"
		if test -n "$opensslincdir"; then
			AC_DEFINE_UNQUOTED(OPENSSL_HEADER_PREFIX, [$opensslincdir], [Path to OpenSSL headers])
		fi
	fi
	PKG_CONFIG_PATH="${PKG_CONFIG_PATH_SAVE}"

	if test "$TCLEXT_BUILD" = "static"; then
		dnl If we are doing a static build, save the linker flags for other programs to consume
		rm -f tcltls.a.linkadd
		AS_ECHO(["$TCLTLS_SSL_LIBS"]) > tcltls.a.linkadd
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	CFLAGS="${TCLTLS_SSL_CFLAGS} ${SAVE_CFLAGS} ${TCLTLS_SSL_CFLAGS}"
	CPPFLAGS="${TCLTLS_SSL_CPPFLAGS} ${SAVE_CPPFLAGS} ${TCLTLS_SSL_CPPFLAGS}"

	dnl Verify that basic functionality is there
	AC_LANG_PUSH(C)
	AC_MSG_CHECKING([if a basic OpenSSL program works])
	AC_LINK_IFELSE([AC_LANG_PROGRAM([
#ifdef OPENSSL_HEADER_PREFIX
#  define OPENSSL_HEADER(header) <OPENSSL_HEADER_PREFIX/header>
#else
#  define OPENSSL_HEADER(header) <header>
#endif
#include <openssl/ssl.h>
#include <openssl/opensslv.h>
#include OPENSSL_HEADER(openssl/ssl.h)
#include OPENSSL_HEADER(openssl/opensslv.h)
#if (SSLEAY_VERSION_NUMBER >= 0x0907000L)
# include <openssl/conf.h>
# include OPENSSL_HEADER(openssl/conf.h)
#endif
		], [
  SSL_library_init();
  SSL_load_error_strings();
		])], [
		AC_MSG_RESULT([yes])
	], [
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	TCLTLS_SSL_OPENSSL_CHECK_PROTO_VER([tcltls_ssl_tls1_2], [TLSv1_2_method], [tlsv1.2], [NO_TLS1_2])
	TCLTLS_SSL_OPENSSL_CHECK_PROTO_VER([tcltls_ssl_tls1_3], [], [tlsv1.3], [NO_TLS1_3], [SSL_OP_NO_TLSv1_3])

	AC_CACHE_VAL([tcltls_cv_func_tlsext_hostname], [
		AC_LANG_PUSH(C)
		AC_MSG_CHECKING([for SSL_set_tlsext_host_name])
		AC_LINK_IFELSE([AC_LANG_PROGRAM([
#ifdef OPENSSL_HEADER_PREFIX
#  define OPENSSL_HEADER(header) <OPENSSL_HEADER_PREFIX/header>
#else
#  define OPENSSL_HEADER(header) <header>
#endif
#include <openssl/ssl.h>
#include OPENSSL_HEADER(openssl/ssl.h)
#if (SSLEAY_VERSION_NUMBER >= 0x0907000L)
# include <openssl/conf.h>
# include OPENSSL_HEADER(openssl/conf.h)
#endif
			], [
  (void)SSL_set_tlsext_host_name((void *) 0, (void *) 0);
			])], [
			AC_MSG_RESULT([yes])
			tcltls_cv_func_tlsext_hostname='yes'
		], [
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Modified tls.c from [c565bf20f1] to [391c72843c].
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/*
 * Thread-Safe TLS Code
 */

#ifdef TCL_THREADS
#define OPENSSL_THREAD_DEFINES
#include <openssl/opensslconf.h>
#include OPENSSL_HEADER(openssl/opensslconf.h)

#ifdef OPENSSL_THREADS
#include <openssl/crypto.h>
#include OPENSSL_HEADER(openssl/crypto.h)

/*
 * Threaded operation requires locking callbacks
 * Based from /crypto/cryptlib.c of OpenSSL and NSOpenSSL.
 */

static Tcl_Mutex *locks = NULL;
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Modified tls.h from [5e9dbae35a] to [32e35217c8].
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 *	tclSSL (Colin McCormack, Shared Technology)
 *	SSLtcl (Peter Antman)
 *
 */
#ifndef _TLS_H
#define _TLS_H

#define mp_digit __TCL_MP_DIGIT
#define mp_int   __TCL_MP_INT
#include <tcl.h>
#undef mp_digit
#undef mp_int

/*
 * Initialization routines -- our entire public C API.
 */
int Tls_Init(Tcl_Interp *interp);
int Tls_SafeInit(Tcl_Interp *interp);
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Modified tlsInt.h from [b78d815874] to [50b6f39a60].
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#ifndef _TLSINT_H
#define _TLSINT_H

#include "tls.h"
#include <errno.h>
#include <string.h>
#include <stdint.h>

#ifdef OPENSSL_HEADER_PREFIX
#  define OPENSSL_HEADER(header) <OPENSSL_HEADER_PREFIX/header>
#else
#  define OPENSSL_HEADER(header) <header>
#endif

#ifdef __WIN32__
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wincrypt.h> /* OpenSSL needs this on Windows */
#endif
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#  define NO_RC5
#  define NO_RSA
#  ifndef NO_SSL2
#    define NO_SSL2
#  endif
#endif

#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/opensslv.h>
#include OPENSSL_HEADER(openssl/ssl.h)
#include OPENSSL_HEADER(openssl/err.h)
#include OPENSSL_HEADER(openssl/rand.h)
#include OPENSSL_HEADER(openssl/opensslv.h)

/*
 * Determine if we should use the pre-OpenSSL 1.1.0 API
 */
#undef TCLTLS_OPENSSL_PRE_1_1
#if (defined(LIBRESSL_VERSION_NUMBER)) || OPENSSL_VERSION_NUMBER < 0x10100000L
#  define TCLTLS_OPENSSL_PRE_1_1_API 1
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