Tcl Source Code

	@echo "Installing encoding files to $(SCRIPT_INSTALL_DIR)/encoding/"
	@for i in $(TOP_DIR)/library/encoding/*.enc; do \
		$(INSTALL_DATA) $$i "$(SCRIPT_INSTALL_DIR)/encoding"; \
	done
	@if [ -n "$(TCL_MODULE_PATH)" -a -f $(TOP_DIR)/library/tm.tcl ] ; then \
	    echo "Customizing tcl module path"; \
	    echo "if {![interp issafe]} { ::tcl::tm::roots [list $(TCL_MODULE_PATH)] }" >> \
	        "$(SCRIPT_INSTALL_DIR)/tm.tcl"; \
	fi

install-tzdata:
	@for i in tzdata; do \
	    if [ ! -d "$(SCRIPT_INSTALL_DIR)/$$i" ] ; then \
		echo "Making directory $(SCRIPT_INSTALL_DIR)/$$i"; \
		$(INSTALL_DATA_DIR) "$(SCRIPT_INSTALL_DIR)/$$i"; \

Sym=""
Loc=""
Gz=""
Suffix=""

while true; do
    case $1 in
        -s | --symlinks  )      Sym="-s "      ;;
        -z | --compress  )     Gzip=$2;  shift ;;
	-e | --extension )       Gz=$2;  shift ;;
	-x | --suffix    )   Suffix=$2;  shift ;;
	-*) cat <<EOF
Unknown option "$1". Supported options:
    -s         Use symbolic links for manpages with multiple names.
    -z PROG    Use PROG to compress manual pages.
    -e EXT     Defines the extension added by -z PROG when compressing.

    if (filePtr->mask & (TCL_READABLE | TCL_EXCEPTION)) {
	newEvent.events |= EPOLLIN;
    }
    if (filePtr->mask & TCL_WRITABLE) {
	newEvent.events |= EPOLLOUT;
    }
    if (isNew) {
        newPedPtr = (struct PlatformEventData *)
		Tcl_Alloc(sizeof(struct PlatformEventData));
        newPedPtr->filePtr = filePtr;
        newPedPtr->tsdPtr = tsdPtr;
	filePtr->pedPtr = newPedPtr;
    }
    newEvent.data.ptr = filePtr->pedPtr;

    /*
     * N.B. As discussed in Tcl_WaitForEvent(), epoll(7) does not support
     * regular files (S_IFREG). Therefore, filePtr is in these cases simply

    tsdPtr->triggerFilePtr = filePtr;
    if ((tsdPtr->eventsFd = epoll_create1(EPOLL_CLOEXEC)) == -1) {
	Tcl_Panic("epoll_create1: %s", strerror(errno));
    }
    filePtr->mask = TCL_READABLE;
    PlatformEventsControl(filePtr, tsdPtr, EPOLL_CTL_ADD, 1);
    if (!tsdPtr->readyEvents) {
        tsdPtr->maxReadyEvents = 512;
	tsdPtr->readyEvents = (struct epoll_event *) Tcl_Alloc(
		tsdPtr->maxReadyEvents * sizeof(tsdPtr->readyEvents[0]));
    }
    LIST_INIT(&tsdPtr->firstReadyFileHandlerPtr);
}

/*

     * impossible to get a package name given a module.
     *
     * I build loadable modules with a makefile rule like
     *		ld ... -export $@: -o $@ $(OBJS)
     */

    if ((pkg = strrchr(fileName, '/')) == NULL) {
        pkg = fileName;
    } else {
	pkg++;
    }
    newHandle = (Tcl_LoadHandle)Tcl_Alloc(sizeof(*newHandle));
    newHandle->clientData = pkg;
    newHandle->findSymbolProcPtr = &FindSymbol;
    newHandle->unloadFileProcPtr = &UnloadFile;

    int *regsPtr)	/* Registers after the CPUID. */
{
    int status = TCL_ERROR;

    /* See: <http://en.wikipedia.org/wiki/CPUID> */
#if defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64)
    __asm__ __volatile__("movq %%rbx, %%rsi     \n\t" /* save %rbx */
                 "cpuid            \n\t"
                 "xchgq %%rsi, %%rbx   \n\t" /* restore the old %rbx */
                 : "=a"(regsPtr[0]), "=S"(regsPtr[1]), "=c"(regsPtr[2]), "=d"(regsPtr[3])
                 : "a"(index));
    status = TCL_OK;
#elif defined(__i386__) || defined(_M_IX86)
    __asm__ __volatile__("mov %%ebx, %%esi     \n\t" /* save %ebx */
                 "cpuid            \n\t"
                 "xchg %%esi, %%ebx   \n\t" /* restore the old %ebx */
                 : "=a"(regsPtr[0]), "=S"(regsPtr[1]), "=c"(regsPtr[2]), "=d"(regsPtr[3])
                 : "a"(index));
    status = TCL_OK;
#else
    (void)index;
    (void)regsPtr;
#endif
    return status;
}

static const char *const processors[NUMPROCESSORS] = {
    "i686", "mips", "alpha", "ppc", "shx", "arm", "ia64", "alpha64", "msil",
    "x86_64", "ia32_on_win64", "neutral", "arm64", "arm32_on_win64", "ia32_on_arm64"
};

typedef struct {
    union {
        unsigned int  dwOemId;
        struct {
            int wProcessorArchitecture;
            int wReserved;
        };
    };
    unsigned int     dwPageSize;
    void *lpMinimumApplicationAddress;
    void *lpMaximumApplicationAddress;
    void *dwActiveProcessorMask;
    unsigned int     dwNumberOfProcessors;
    unsigned int     dwProcessorType;

	p = q+1;
    }
    if (*p) {
	Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, -1));
    }
    Tcl_ObjSetVar2(interp, Tcl_NewStringObj("tcl_pkgPath", -1), NULL, pkgListObj, TCL_GLOBAL_ONLY);
    {
        /* Some platforms build configure scripts expect ~ expansion so do that */
        Tcl_Obj *origPaths;
        Tcl_Obj *resolvedPaths;

        origPaths = Tcl_GetVar2Ex(interp, "tcl_pkgPath", NULL, TCL_GLOBAL_ONLY);
        resolvedPaths = TclResolveTildePathList(origPaths);
        if (resolvedPaths != origPaths && resolvedPaths != NULL) {
            Tcl_SetVar2Ex(interp, "tcl_pkgPath", NULL, resolvedPaths, TCL_GLOBAL_ONLY);
        }
    }

#ifdef DJGPP
    Tcl_SetVar2(interp, "tcl_platform", "platform", "dos", TCL_GLOBAL_ONLY);
#else
    Tcl_SetVar2(interp, "tcl_platform", "platform", "unix", TCL_GLOBAL_ONLY);
#endif

    TcpFdList fds;		/* The file descriptors of the sockets. */
    int interest;		/* Event types of interest */

    /*
     * Only needed for server sockets
     */

    Tcl_TcpAcceptProc *acceptProc;
                                /* Proc to call on accept. */
    void *acceptProcData;  /* The data for the accept proc. */

    /*
     * Only needed for client sockets
     */

    struct addrinfo *addrlist;	/* Addresses to connect to. */

#ifndef NO_UNAME
    struct utsname u;
    struct hostent *hp;

    memset(&u, (int) 0, sizeof(struct utsname));
    if (uname(&u) >= 0) {				/* INTL: Native. */
        hp = TclpGetHostByName(u.nodename);		/* INTL: Native. */
	if (hp == NULL) {
	    /*
	     * Sometimes the nodename is fully qualified, but gets truncated
	     * as it exceeds SYS_NMLN. See if we can just get the immediate
	     * nodename and get a proper answer that way.
	     */

	    char *dot = strchr(u.nodename, '.');

	    if (dot != NULL) {
		char *node = (char *)Tcl_Alloc(dot - u.nodename + 1);

		memcpy(node, u.nodename, dot - u.nodename);
		node[dot - u.nodename] = '\0';
		hp = TclpGetHostByName(node);
		Tcl_Free(node);
	    }
	}
        if (hp != NULL) {
	    native = hp->h_name;
        } else {
	    native = u.nodename;
        }
    }
#else /* !NO_UNAME */
    /*
     * Uname doesn't exist; try gethostname instead.
     *
     * There is no portable macro for the maximum length of host names
     * returned by gethostbyname(). We should only trust SYS_NMLN if it is at

    if (mode == TCL_MODE_BLOCKING) {
	CLEAR_BITS(statePtr->flags, TCP_NONBLOCKING);
    } else {
	SET_BITS(statePtr->flags, TCP_NONBLOCKING);
    }
    if (GOT_BITS(statePtr->flags, TCP_ASYNC_CONNECT)) {
        statePtr->cachedBlocking = mode;
        return 0;
    }
    if (TclUnixSetBlockingMode(statePtr->fds.fd, mode) < 0) {
	return errno;
    }
    return 0;
}


     * In socket test mode do not continue with the connect.
     * Exceptions are:
     * - Call by recv/send and blocking socket
     *   (errorCodePtr != NULL && !GOT_BITS(flags, TCP_NONBLOCKING))
     */

    if (GOT_BITS(statePtr->flags, TCP_ASYNC_TEST_MODE)
            && !(errorCodePtr != NULL
                    && !GOT_BITS(statePtr->flags, TCP_NONBLOCKING))) {
	*errorCodePtr = EWOULDBLOCK;
	return -1;
    }

    if (errorCodePtr == NULL || GOT_BITS(statePtr->flags, TCP_NONBLOCKING)) {
        timeout = 0;
    } else {
        timeout = -1;
    }
    do {
        if (TclUnixWaitForFile(statePtr->fds.fd,
                TCL_WRITABLE | TCL_EXCEPTION, timeout) != 0) {
            TcpConnect(NULL, statePtr);
        }

        /*
         * Do this only once in the nonblocking case and repeat it until the
         * socket is final when blocking.
         */
    } while (timeout == -1 && GOT_BITS(statePtr->flags, TCP_ASYNC_CONNECT));

    if (errorCodePtr != NULL) {
        if (GOT_BITS(statePtr->flags, TCP_ASYNC_PENDING)) {
            *errorCodePtr = EAGAIN;
            return -1;
        } else if (statePtr->connectError != 0) {
            *errorCodePtr = ENOTCONN;
            return -1;
        }
    }
    return 0;
}

/*
 *----------------------------------------------------------------------
 *

    while (fds != NULL) {
	TcpFdList *next = fds->next;

	Tcl_Free(fds);
	fds = next;
    }
    if (statePtr->addrlist != NULL) {
        freeaddrinfo(statePtr->addrlist);
    }
    if (statePtr->myaddrlist != NULL) {
        freeaddrinfo(statePtr->myaddrlist);
    }
    Tcl_Free(statePtr);
    return errorCode;
}

/*
 *----------------------------------------------------------------------

#pragma GCC diagnostic ignored "-Wstrict-aliasing"
#endif
static inline int
IPv6AddressNeedsNumericRendering(
    struct in6_addr addr)
{
    if (IN6_ARE_ADDR_EQUAL(&addr, &in6addr_any)) {
        return 1;
    }

    /*
     * The IN6_IS_ADDR_V4MAPPED macro has a problem with aliasing warnings on
     * at least some versions of OSX.
     */

    if (!IN6_IS_ADDR_V4MAPPED(&addr)) {
        return 0;
    }

    return (addr.s6_addr[12] == 0 && addr.s6_addr[13] == 0
            && addr.s6_addr[14] == 0 && addr.s6_addr[15] == 0);
}
#if defined (__clang__) || ((__GNUC__)  && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
#pragma GCC diagnostic pop
#endif
#endif /* NEED_FAKE_RFC2553 */

static void
TcpHostPortList(
    Tcl_Interp *interp,
    Tcl_DString *dsPtr,
    address addr,
    socklen_t salen)
{
#define SUPPRESS_RDNS_VAR "::tcl::unsupported::noReverseDNS"
    char host[NI_MAXHOST], nhost[NI_MAXHOST], nport[NI_MAXSERV];
    int flags = 0;

    getnameinfo(&addr.sa, salen, nhost, sizeof(nhost), nport, sizeof(nport),
            NI_NUMERICHOST | NI_NUMERICSERV);
    Tcl_DStringAppendElement(dsPtr, nhost);

    /*
     * We don't want to resolve INADDR_ANY and sin6addr_any; they can
     * sometimes cause problems (and never have a name).
     */

    if (addr.sa.sa_family == AF_INET) {
        if (addr.sa4.sin_addr.s_addr == INADDR_ANY) {
            flags |= NI_NUMERICHOST;
        }
#ifndef NEED_FAKE_RFC2553
    } else if (addr.sa.sa_family == AF_INET6) {
        if (IPv6AddressNeedsNumericRendering(addr.sa6.sin6_addr)) {
            flags |= NI_NUMERICHOST;
        }
#endif /* NEED_FAKE_RFC2553 */
    }

    /*
     * Check if reverse DNS has been switched off globally.
     */

    if (interp != NULL &&
            Tcl_GetVar2(interp, SUPPRESS_RDNS_VAR, NULL, 0) != NULL) {
        flags |= NI_NUMERICHOST;
    }
    if (getnameinfo(&addr.sa, salen, host, sizeof(host), NULL, 0,
            flags) == 0) {
        /*
         * Reverse mapping worked.
         */

        Tcl_DStringAppendElement(dsPtr, host);
    } else {
        /*
         * Reverse mapping failed - use the numeric rep once more.
         */

        Tcl_DStringAppendElement(dsPtr, nhost);
    }
    Tcl_DStringAppendElement(dsPtr, nport);
}

/*
 *----------------------------------------------------------------------
 *

    }

    if ((len > 1) && (optionName[1] == 'e') &&
	    (strncmp(optionName, "-error", len) == 0)) {
	socklen_t optlen = sizeof(int);

	WaitForConnect(statePtr, NULL);
        if (GOT_BITS(statePtr->flags, TCP_ASYNC_CONNECT)) {
            /*
             * Suppress errors as long as we are not done.
             */

            errno = 0;
        } else if (statePtr->connectError != 0) {
            errno = statePtr->connectError;
            statePtr->connectError = 0;
        } else {
            int err;

            getsockopt(statePtr->fds.fd, SOL_SOCKET, SO_ERROR, (char *) &err,
                    &optlen);
            errno = err;
        }
        if (errno != 0) {
	    Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(errno), TCL_INDEX_NONE);
        }
	return TCL_OK;
    }

    if ((len > 1) && (optionName[1] == 'c') &&
	    (strncmp(optionName, "-connecting", len) == 0)) {
	WaitForConnect(statePtr, NULL);
	Tcl_DStringAppend(dsPtr,
		GOT_BITS(statePtr->flags, TCP_ASYNC_CONNECT) ? "1" : "0", TCL_INDEX_NONE);
        return TCL_OK;
    }

    if ((len == 0) || ((len > 1) && (optionName[1] == 'p') &&
	    (strncmp(optionName, "-peername", len) == 0))) {
        address peername;
        socklen_t size = sizeof(peername);

	WaitForConnect(statePtr, NULL);
	if (GOT_BITS(statePtr->flags, TCP_ASYNC_CONNECT)) {
	    /*
	     * In async connect output an empty string
	     */

	     * Peername fetch succeeded - output list
	     */

	    if (len == 0) {
		Tcl_DStringAppendElement(dsPtr, "-peername");
		Tcl_DStringStartSublist(dsPtr);
	    }
            TcpHostPortList(interp, dsPtr, peername, size);
	    if (len) {
                return TCL_OK;
            }
            Tcl_DStringEndSublist(dsPtr);
	} else {
	    /*
	     * getpeername failed - but if we were asked for all the options
	     * (len==0), don't flag an error at that point because it could be
	     * an fconfigure request on a server socket (which have no peer).
	     * Same must be done on win&mac.
	     */

	    if (len) {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                            "can't get peername: %s",
			    Tcl_PosixError(interp)));
		}
		return TCL_ERROR;
	    }
	}
    }

	    Tcl_DStringStartSublist(dsPtr);
	}
	if (GOT_BITS(statePtr->flags, TCP_ASYNC_CONNECT)) {
	    /*
	     * In async connect output an empty string
	     */

            found = 1;
	} else {
	    for (fds = &statePtr->fds; fds != NULL; fds = fds->next) {
		size = sizeof(sockname);
		if (getsockname(fds->fd, &(sockname.sa), &size) >= 0) {
		    found = 1;
		    TcpHostPortList(interp, dsPtr, sockname, size);
		}
	    }
	}
        if (found) {
            if (len) {
                return TCL_OK;
            }
            Tcl_DStringEndSublist(dsPtr);
        } else {
            if (interp) {
                Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                        "can't get sockname: %s", Tcl_PosixError(interp)));
            }
	    return TCL_ERROR;
	}
    }

    if ((len == 0) || ((len > 1) && (optionName[1] == 'k') &&
	    (strncmp(optionName, "-keepalive", len) == 0))) {
	int opt = 0;

	if (len > 0) {
	    return TCL_OK;
	}
    }

    if (len > 0) {
	return Tcl_BadChannelOption(interp, optionName,
                "connecting keepalive nodelay peername sockname");
    }

    return TCL_OK;
}

/*
 * ----------------------------------------------------------------------

    int mask)			/* Events of interest; an OR-ed combination of
				 * TCL_READABLE, TCL_WRITABLE and
				 * TCL_EXCEPTION. */
{
    TcpState *statePtr = (TcpState *)instanceData;

    if (statePtr->acceptProc != NULL) {
        /*
         * Make sure we don't mess with server sockets since they will never
         * be readable or writable at the Tcl level. This keeps Tcl scripts
         * from interfering with the -accept behavior (bug #3394732).
         */

	return;
    }

    if (GOT_BITS(statePtr->flags, TCP_ASYNC_PENDING)) {
        /*
         * Async sockets use a FileHandler internally while connecting, so we
         * need to cache this request until the connection has succeeded.
         */

        statePtr->filehandlers = mask;
    } else if (mask) {

	/*
	 * Whether it is a bug or feature or otherwise, it is a fact of life
	 * that on at least some Linux kernels select() fails to report that a
	 * socket file descriptor is writable when the other end of the socket
	 * is closed.  This is in contrast to the guarantees Tcl makes that

    socklen_t optlen;
    int async_callback = GOT_BITS(statePtr->flags, TCP_ASYNC_PENDING);
    int ret = -1, error = EHOSTUNREACH;
    int async = GOT_BITS(statePtr->flags, TCP_ASYNC_CONNECT);
    static const int reuseaddr = 1;

    if (async_callback) {
        goto reenter;
    }

    for (statePtr->addr = statePtr->addrlist; statePtr->addr != NULL;
            statePtr->addr = statePtr->addr->ai_next) {
        for (statePtr->myaddr = statePtr->myaddrlist;
                statePtr->myaddr != NULL;
                statePtr->myaddr = statePtr->myaddr->ai_next) {
	    /*
	     * No need to try combinations of local and remote addresses of
	     * different families.
	     */

	    if (statePtr->myaddr->ai_family != statePtr->addr->ai_family) {
		continue;
	    }

            /*
             * Close the socket if it is still open from the last unsuccessful
             * iteration.
             */

            if (statePtr->fds.fd >= 0) {
		close(statePtr->fds.fd);
		statePtr->fds.fd = -1;
                errno = 0;
	    }

	    statePtr->fds.fd = socket(statePtr->addr->ai_family, SOCK_STREAM,
                    0);
	    if (statePtr->fds.fd < 0) {
		continue;
	    }

	    /*
	     * Set the close-on-exec flag so that the socket will not get
	     * inherited by child processes.
	     */

	    fcntl(statePtr->fds.fd, F_SETFD, FD_CLOEXEC);

	    /*
	     * Set kernel space buffering
	     */

	    TclSockMinimumBuffers(INT2PTR(statePtr->fds.fd), SOCKET_BUFSIZE);

	    if (async) {
                ret = TclUnixSetBlockingMode(statePtr->fds.fd,
                        TCL_MODE_NONBLOCKING);
                if (ret < 0) {
                    continue;
                }
            }

            /*
             * Must reset the error variable here, before we use it for the
             * first time in this iteration.
             */

            error = 0;

            (void) setsockopt(statePtr->fds.fd, SOL_SOCKET, SO_REUSEADDR,
                    (char *) &reuseaddr, sizeof(reuseaddr));
            ret = bind(statePtr->fds.fd, statePtr->myaddr->ai_addr,
                    statePtr->myaddr->ai_addrlen);
            if (ret < 0) {
                error = errno;
                continue;
            }

	    /*
	     * Attempt to connect. The connect may fail at present with an
	     * EINPROGRESS but at a later time it will complete. The caller
	     * will set up a file handler on the socket if she is interested
	     * in being informed when the connect completes.
	     */

	    ret = connect(statePtr->fds.fd, statePtr->addr->ai_addr,
                        statePtr->addr->ai_addrlen);
            if (ret < 0) {
                error = errno;
            }
	    if (ret < 0 && errno == EINPROGRESS) {
                Tcl_CreateFileHandler(statePtr->fds.fd,
                        TCL_WRITABLE | TCL_EXCEPTION, TcpAsyncCallback,
                        statePtr);
                errno = EWOULDBLOCK;
                SET_BITS(statePtr->flags, TCP_ASYNC_PENDING);
                return TCL_OK;

            reenter:
                CLEAR_BITS(statePtr->flags, TCP_ASYNC_PENDING);
                Tcl_DeleteFileHandler(statePtr->fds.fd);

                /*
                 * Read the error state from the socket to see if the async
                 * connection has succeeded or failed. As this clears the
                 * error condition, we cache the status in the socket state
                 * struct for later retrieval by [fconfigure -error].
                 */

                optlen = sizeof(int);

                getsockopt(statePtr->fds.fd, SOL_SOCKET, SO_ERROR,
                        (char *) &error, &optlen);
                errno = error;
            }
	    if (error == 0) {
		goto out;
	    }
	}
    }

  out:
    statePtr->connectError = error;
    CLEAR_BITS(statePtr->flags, TCP_ASYNC_CONNECT);
    if (async_callback) {
        /*
         * An asynchonous connection has finally succeeded or failed.
         */

        TcpWatchProc(statePtr, statePtr->filehandlers);
        TclUnixSetBlockingMode(statePtr->fds.fd, statePtr->cachedBlocking);

        if (error != 0) {
            SET_BITS(statePtr->flags, TCP_ASYNC_FAILED);
        }

        /*
         * We need to forward the writable event that brought us here, because
         * upon reading of getsockopt(SO_ERROR), at least some OSes clear the
         * writable state from the socket, and so a subsequent select() on
         * behalf of a script level [fileevent] would not fire. It doesn't
         * hurt that this is also called in the successful case and will save
         * the event mechanism one roundtrip through select().
         */

	if (statePtr->cachedBlocking == TCL_MODE_NONBLOCKING) {
	    Tcl_NotifyChannel(statePtr->channel, TCL_WRITABLE);
	}
    }
    if (error != 0) {
        /*
         * Failure for either a synchronous connection, or an async one that
         * failed before it could enter background mode, e.g. because an
         * invalid -myaddr was given.
         */

        if (interp != NULL) {
            errno = error;
            Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                    "couldn't open socket: %s", Tcl_PosixError(interp)));
        }
        return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *

    char channelName[SOCK_CHAN_LENGTH];

    /*
     * Do the name lookups for the local and remote addresses.
     */

    if (!TclCreateSocketAddress(interp, &addrlist, host, port, 0, &errorMsg)
            || !TclCreateSocketAddress(interp, &myaddrlist, myaddr, myport, 1,
                    &errorMsg)) {
        if (addrlist != NULL) {
            freeaddrinfo(addrlist);
        }
        if (interp != NULL) {
            Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                    "couldn't open socket: %s", errorMsg));
        }
        return NULL;
    }

    /*
     * Allocate a new TcpState for this socket.
     */

    statePtr = (TcpState *)Tcl_Alloc(sizeof(TcpState));
    memset(statePtr, 0, sizeof(TcpState));
    statePtr->flags = async ? TCP_ASYNC_CONNECT : 0;
    statePtr->cachedBlocking = TCL_MODE_BLOCKING;
    statePtr->addrlist = addrlist;
    statePtr->myaddrlist = myaddrlist;
    statePtr->fds.fd = -1;

    /*
     * Create a new client socket and wrap it in a channel.
     */

    if (TcpConnect(interp, statePtr) != TCL_OK) {
        TcpCloseProc(statePtr, NULL);
        return NULL;
    }

    snprintf(channelName, sizeof(channelName), SOCK_TEMPLATE, PTR2INT(statePtr));

    statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
            statePtr, TCL_READABLE | TCL_WRITABLE);
    if (Tcl_SetChannelOption(interp, statePtr->channel, "-translation",
	    "auto crlf") == TCL_ERROR) {
	Tcl_CloseEx(NULL, statePtr->channel, 0);
	return NULL;
    }
    return statePtr->channel;
}

 */

Tcl_Channel
Tcl_MakeTcpClientChannel(
    void *sock)		/* The socket to wrap up into a channel. */
{
    return (Tcl_Channel) TclpMakeTcpClientChannelMode(sock,
            TCL_READABLE | TCL_WRITABLE);
}

/*
 *----------------------------------------------------------------------
 *
 * TclpMakeTcpClientChannelMode --
 *

     */

    int retry = 0;
#define MAXRETRY 10

 repeat:
    if (retry > 0) {
        if (statePtr != NULL) {
            TcpCloseProc(statePtr, NULL);
            statePtr = NULL;
        }
        if (addrlist != NULL) {
            freeaddrinfo(addrlist);
            addrlist = NULL;
        }
        if (retry >= MAXRETRY) {
            goto error;
        }
    }
    retry++;
    chosenport = 0;

    if (TclSockGetPort(interp, service, "tcp", &port) != TCL_OK) {
	errorMsg = "invalid port number";
	goto error;
    }

    if (!TclCreateSocketAddress(interp, &addrlist, myHost, port, 1,
            &errorMsg)) {
	my_errno = errno;
	goto error;
    }

    for (addrPtr = addrlist; addrPtr != NULL; addrPtr = addrPtr->ai_next) {
	sock = socket(addrPtr->ai_family, addrPtr->ai_socktype,
                addrPtr->ai_protocol);
	if (sock == -1) {
	    if (howfar < SOCKET) {
		howfar = SOCKET;
		my_errno = errno;
	    }
	    continue;
	}

#else
	    optvalue = 1;
	    (void) setsockopt(sock, SOL_SOCKET, SO_REUSEPORT,
		    (char *) &optvalue, sizeof(optvalue));
#endif
	}

        /*
         * Make sure we use the same port number when opening two server
         * sockets for IPv4 and IPv6 on a random port.
         *
         * As sockaddr_in6 uses the same offset and size for the port member
         * as sockaddr_in, we can handle both through the IPv4 API.
         */

	if (port == 0 && chosenport != 0) {
	    ((struct sockaddr_in *) addrPtr->ai_addr)->sin_port =
                    htons(chosenport);
	}

#ifdef IPV6_V6ONLY
	/*
         * Missing on: Solaris 2.8
         */

        if (addrPtr->ai_family == AF_INET6) {
            int v6only = 1;

            (void) setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
                    &v6only, sizeof(v6only));
        }
#endif /* IPV6_V6ONLY */

	status = bind(sock, addrPtr->ai_addr, addrPtr->ai_addrlen);
        if (status == -1) {
	    if (howfar < BIND) {
		howfar = BIND;
		my_errno = errno;
	    }
            close(sock);
            sock = -1;
            if (port == 0 && errno == EADDRINUSE) {
                goto repeat;
            }
            continue;
        }
        if (port == 0 && chosenport == 0) {
            address sockname;
            socklen_t namelen = sizeof(sockname);

            /*
             * Synchronize port numbers when binding to port 0 of multiple
             * addresses.
             */

            if (getsockname(sock, &sockname.sa, &namelen) >= 0) {
                chosenport = ntohs(sockname.sa4.sin_port);
            }
        }
        if (backlog < 0) {
            backlog = SOMAXCONN;
        }
        status = listen(sock, backlog);
        if (status < 0) {
	    if (howfar < LISTEN) {
		howfar = LISTEN;
		my_errno = errno;
	    }
            close(sock);
            sock = -1;
            if (port == 0 && errno == EADDRINUSE) {
                goto repeat;
            }
            continue;
        }
        if (statePtr == NULL) {
            /*
             * Allocate a new TcpState for this socket.
             */

            statePtr = (TcpState *)Tcl_Alloc(sizeof(TcpState));
            memset(statePtr, 0, sizeof(TcpState));
            statePtr->acceptProc = acceptProc;
            statePtr->acceptProcData = acceptProcData;
            snprintf(channelName, sizeof(channelName), SOCK_TEMPLATE, PTR2INT(statePtr));
            newfds = &statePtr->fds;
        } else {
            newfds = (TcpFdList *)Tcl_Alloc(sizeof(TcpFdList));
            memset(newfds, (int) 0, sizeof(TcpFdList));
            fds->next = newfds;
        }
        newfds->fd = sock;
        newfds->statePtr = statePtr;
        fds = newfds;

        /*
         * Set up the callback mechanism for accepting connections from new
         * clients.
         */

        Tcl_CreateFileHandler(sock, TCL_READABLE, TcpAccept, fds);
    }

  error:
    if (addrlist != NULL) {
	freeaddrinfo(addrlist);
    }
    if (statePtr != NULL) {
	statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
		statePtr, 0);
	return statePtr->channel;
    }
    if (interp != NULL) {
        Tcl_Obj *errorObj = Tcl_NewStringObj("couldn't open socket: ", TCL_INDEX_NONE);

	if (errorMsg == NULL) {
            errno = my_errno;
            Tcl_AppendToObj(errorObj, Tcl_PosixError(interp), TCL_INDEX_NONE);
        } else {
	    Tcl_AppendToObj(errorObj, errorMsg, TCL_INDEX_NONE);
	}
        Tcl_SetObjResult(interp, errorObj);
    }
    if (sock != -1) {
	close(sock);
    }
    return NULL;
}


	    newSockState, TCL_READABLE | TCL_WRITABLE);

    Tcl_SetChannelOption(NULL, newSockState->channel, "-translation",
	    "auto crlf");

    if (fds->statePtr->acceptProc != NULL) {
	getnameinfo(&addr.sa, len, host, sizeof(host), port, sizeof(port),
                NI_NUMERICHOST|NI_NUMERICSERV);
	fds->statePtr->acceptProc(fds->statePtr->acceptProcData,
                newSockState->channel, host, atoi(port));
    }
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 */

	@$(RM) ${TEST_DLL_FILE} ${TEST_LIB_FILE}
	@MAKE_DLL@ ${TCLTEST_OBJS} $(TCL_STUB_LIB_FILE) $(SHLIB_LD_LIBS)
	$(COPY) tclsh.exe.manifest ${TEST_DLL_FILE}.manifest

${TEST_EXE_FILE}: ${TCL_STUB_LIB_FILE} ${TCLTEST_OBJS} tclTestMain.${OBJEXT}
	@$(RM) ${TEST_EXE_FILE}
	$(CC) $(CFLAGS) $(TCLTEST_OBJS) tclTestMain.$(OBJEXT) $(TCL_LIB_FILE) $(TCL_STUB_LIB_FILE) $(LIBS) \
        tclsh.$(RES) $(CC_EXENAME) $(LDFLAGS_CONSOLE)
	$(COPY) tclsh.exe.manifest ${TEST_EXE_FILE}.manifest

# use prebuilt zlib1.dll
${ZLIB_DLL_FILE}: ${TCL_STUB_LIB_FILE}
	@if test "@ZLIB_LIBS@set" = "${ZLIB_DIR_NATIVE}/win64-arm/zdll.libset" ; then \
		$(COPY) $(ZLIB_DIR)/win64-arm/${ZLIB_DLL_FILE} ${ZLIB_DLL_FILE}; \
	elif test "@ZLIB_LIBS@set" = "${ZLIB_DIR_NATIVE}/win64-arm/libz.dll.aset" ; then \

    SetEnvironmentVariable("LINK", "");

    if (argc > 1 && *argv[1] == '-') {
	switch (*(argv[1]+1)) {
	case 'c':
	    if (argc != 3) {
		chars = snprintf(msg, sizeof(msg) - 1,
		        "usage: %s -c <compiler option>\n"
			"Tests for whether cl.exe supports an option\n"
			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
			&dwWritten, NULL);
		return 2;
	    }
	    return CheckForCompilerFeature(argv[2]);

	    NULL,	    /* Use parent's starting directory. */
	    &si,	    /* Pointer to STARTUPINFO structure. */
	    &pi);	    /* Pointer to PROCESS_INFORMATION structure. */

    if (!ok) {
	DWORD err = GetLastError();
	int chars = snprintf(msg, sizeof(msg) - 1,
		"Tried to launch: \"%s\", but got error [%lu]: ", cmdline, err);

	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPSTR)&msg[chars],
		(300-chars), 0);
	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
	return 2;
    }

    /*
     * Look for the commandline warning code in both streams.
     *  - in MSVC 6 & 7 we get D4002, in MSVC 8 we get D9002.
     */

    return !(strstr(Out.buffer, "D4002") != NULL
             || strstr(Err.buffer, "D4002") != NULL
             || strstr(Out.buffer, "D9002") != NULL
             || strstr(Err.buffer, "D9002") != NULL
             || strstr(Out.buffer, "D2021") != NULL
             || strstr(Err.buffer, "D2021") != NULL);
}

static int
CheckForLinkerFeature(
    char **options,
    int count)
{

	    NULL,	    /* Use parent's starting directory. */
	    &si,	    /* Pointer to STARTUPINFO structure. */
	    &pi);	    /* Pointer to PROCESS_INFORMATION structure. */

    if (!ok) {
	DWORD err = GetLastError();
	int chars = snprintf(msg, sizeof(msg) - 1,
		"Tried to launch: \"%s\", but got error [%lu]: ", cmdline, err);

	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPSTR)&msg[chars],
		(300-chars), 0);
	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
	return 2;
    }

 *	option here to handle autoconf style substitutions.
 *	The substitution file is whitespace and line delimited. The file should
 *	consist of lines matching the regular expression:
 *	  \s*\S+\s+\S*$
 *
 *	Usage is something like:
 *	  nmakehlp -S << $** > $@
 *        @PACKAGE_NAME@ $(PACKAGE_NAME)
 *        @PACKAGE_VERSION@ $(PACKAGE_VERSION)
 *        <<
 */

static int
SubstituteFile(
    const char *substitutions,
    const char *filename)
{

    int keylen, ret;
    WIN32_FIND_DATA finfo;

    if (dir == NULL || keypath == NULL) {
	return 2; /* Have no real error reporting mechanism into nmake */
    }
    dirlen = strlen(dir);
    if (dirlen > sizeof(path) - 3) {
	return 2;
    }
    strncpy(path, dir, dirlen);
    strncpy(path+dirlen, "\\*", 3);	/* Including terminating \0 */
    keylen = strlen(keypath);

#if 0 /* This function is not available in Visual C++ 6 */
    /*
     * Use numerics 0 -> FindExInfoStandard,
     * 1 -> FindExSearchLimitToDirectories,
     * as these are not defined in Visual C++ 6
     */
    hSearch = FindFirstFileEx(path, 0, &finfo, 1, NULL, 0);
#else
    hSearch = FindFirstFile(path, &finfo);
#endif
    if (hSearch == INVALID_HANDLE_VALUE)
	return 1; /* Not found */


    /* Loop through all subdirs checking if the keypath is under there */
    ret = 1; /* Assume not found */
    do {
	int sublen;
	/*
	 * We need to check it is a directory despite the
	 * FindExSearchLimitToDirectories in the above call. See SDK docs
	 */
	if ((finfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
	    continue;

	sublen = strlen(finfo.cFileName);
	if ((dirlen+1+sublen+1+keylen+1) > sizeof(path))
	    continue;		/* Path does not fit, assume not matched */

	strncpy(path+dirlen+1, finfo.cFileName, sublen);
	path[dirlen+1+sublen] = '\\';
	strncpy(path+dirlen+1+sublen+1, keypath, keylen+1);
	if (FileExists(path)) {
	    /* Found a match, print to stdout */
	    path[dirlen+1+sublen] = '\0';
	    QualifyPath(path);
	    ret = 0;
	    break;
	}
    } while (FindNextFile(hSearch, &finfo));
    FindClose(hSearch);
    return ret;
}

/*
 * LocateDependency --
 *
 *	Locates a dependency for a package.
 *        keypath - a relative path within the package directory
 *          that is used to confirm it is the correct directory.
 *	The search path for the package directory is currently only
 *      the parent and grandparent of the current working directory.
 *      If found, the command prints
 *         name_DIRPATH=<full path of located directory>
 *      and returns 0. If not found, does not print anything and returns 1.
 */
static int LocateDependency(const char *keypath)
{
    size_t i;
    int ret;
    static const char *paths[] = {"..", "..\\..", "..\\..\\.."};