/*

    File:       QISAPlatformCFM.c

    Contains:   Implementation of the traditional Mac OS platform specific code.

    Written by: DTS

    Copyright:  Copyright © 2002 by Apple Computer, Inc., All Rights Reserved.

    Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.

                ("Apple") in consideration of your agreement to the following terms, and your

                use, installation, modification or redistribution of this Apple software

                constitutes acceptance of these terms.  If you do not agree with these terms,

                please do not use, install, modify or redistribute this Apple software.

                In consideration of your agreement to abide by the following terms, and subject

                to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs

                copyrights in this original Apple software (the "Apple Software"), to use,

                reproduce, modify and redistribute the Apple Software, with or without

                modifications, in source and/or binary forms; provided that if you redistribute

                the Apple Software in its entirety and without modifications, you must retain

                this notice and the following text and disclaimers in all such redistributions of

                the Apple Software.  Neither the name, trademarks, service marks or logos of

                Apple Computer, Inc. may be used to endorse or promote products derived from the

                Apple Software without specific prior written permission from Apple.  Except as

                expressly stated in this notice, no other rights or licenses, express or implied,

                are granted by Apple herein, including but not limited to any patent rights that

                may be infringed by your derivative works or by other works in which the Apple

                Software may be incorporated.

                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

                WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

                COMBINATION WITH YOUR PRODUCTS.

                IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

                CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

                GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

                ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION

                OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT

                (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN

                ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    Change History (most recent first):

*/

/////////////////////////////////////////////////////////////////

#include "QISAPlatform.h"

// System interfaces

#include <OpenTransport.h>

#include <OpenTransportProtocol.h>

#include <NetworkSetup.h>

#include <CFNumber.h>

#include <StringCompare.h>

#include <Folders.h>

#include <PLStringFuncs.h>

#include <stdio.h>

#include <string.h>

// MoreIsBetter interfaces

#include "MoreCFQ.h"

#include "MoreMemory.h"

#include "MoreSCFCCLScanner.h"

#include "NetworkSetupHelpers.h"

// QISA interfaces

#include "QISA.h"

/////////////////////////////////////////////////////////////////

#pragma mark ***** Exports

#pragma export list QISACreateCCLArray

#pragma export list QISACreatePortArray

#pragma export list QISADoesNetworkConfigExist

#pragma export list QISAMakeNetworkConfig

#pragma export list QISAPlatformInit

/////////////////////////////////////////////////////////////////

#pragma mark ***** Implementation

// IMPORTANT:

// When converting network configuration user visible names to and from CFStrings, we 

// deliberately use CFStringGetSystemEncoding, and not GetApplicationTextEncoding.  

// If you're an English application running on a Japanese system, the network control 

// panels will be localised for Japanese (the system encoding), not English (the 

// application encoding), and thus the configurations names need to be treated as 

// Japanese.

// This plug-in's bundle.  It's passed to QISAPlatformInit by the 

// host application.  We keep track of it just because it's generally 

// useful.  Right now we don't use it anywhere outside of QISAPlatformInit.

static CFBundleRef gPlatformBundle;

// This key is used to store a port's OTPortRef within the port 

// dictionaries returned by QISACreatePortArray.

#define kMyPropOTPortRef CFSTR("com.apple.dts.QISA.OTPortRef")   /* CFNumber SInt32 -> OTPortRef */

static OTPortRef GetPortRefFromDict(CFDictionaryRef portDict)

    // Given a port dictionary (created QISACreatePortArray), get the 

    // OTPortRef from the kMyPropOTPortRef key.

{

    Boolean         junkBool;

    OTPortRef       result;

    CFNumberRef     portRef;

    assert(portDict != NULL);

    result = kOTInvalidPortRef;

    portRef = (CFNumberRef) CFDictionaryGetValue(portDict, kMyPropOTPortRef);

    assert( (portRef != NULL) && (CFGetTypeID(portRef) == CFNumberGetTypeID()) );

    junkBool = CFNumberGetValue(portRef, kCFNumberSInt32Type, (SInt32 *) &result);

    assert(junkBool);

    return result;

}

extern pascal OSStatus QISACreateCCLArray(CFArrayRef *result, CFIndex *indexOfDefaultCCL)

    // See comment in "QISAPlatform.h".

    // Also see discussion of MoreSCCreateCCLArray in "MoreSCFCCLScanner.h".

{

    return MoreSCCreateCCLArray(result, indexOfDefaultCCL);

}

static CFComparisonResult PortSorter(const void *lhs, const void *rhs, void *context)

    // Compares two port dictionaries and orders them appropriately. 

    // This is used by QISACreatePortArray to sort the returned 

    // port list.

{

    #pragma unused(context)

    CFDictionaryRef     lhsDict;

    CFDictionaryRef     rhsDict;

    OTDeviceType        lhsOrder;

    OTDeviceType        rhsOrder;

    assert(lhs != NULL);

    assert(rhs != NULL);

    lhsDict = (CFDictionaryRef) lhs;

    assert( CFGetTypeID(lhsDict) == CFDictionaryGetTypeID() );

    rhsDict = (CFDictionaryRef) rhs;

    assert( CFGetTypeID(rhsDict) == CFDictionaryGetTypeID() );

    lhsOrder = OTGetDeviceTypeFromPortRef(GetPortRefFromDict(lhs));

    rhsOrder = OTGetDeviceTypeFromPortRef(GetPortRefFromDict(lhs));

    if (lhsOrder > rhsOrder)

        return kCFCompareGreaterThan;

    if (lhsOrder < rhsOrder)

        return kCFCompareLessThan;

    // objects are the same type, so order by name

    return CFStringCompare( 

                (CFStringRef) CFDictionaryGetValue(lhsDict, kSCPropUserDefinedName), 

                (CFStringRef) CFDictionaryGetValue(rhsDict, kSCPropUserDefinedName), kCFCompareLocalized);

}

extern pascal OSStatus QISACreatePortArray(CFArrayRef *portArray)

    // See comment in "QISAPlatform.h".

{

    OSStatus            err;

    Boolean             done;

    CFMutableArrayRef   result;

    OTItemCount         portIndex;

    OTPortRecord        thisPort;

    assert( portArray != NULL);

    assert(*portArray == NULL);

    result = NULL;

    // Create the array.

    err = CFQArrayCreateMutable(&result);

    if (err == noErr) {

        // Iterate over the OT port registry looking for serial ports.  For each 

        // port found, create a dictionary that represents the port and add that 

        // to the array.

        done = false;

        portIndex = 0;

        do {

            if ( OTGetIndexedPort(&thisPort, portIndex) ) {

                if (OTGetDeviceTypeFromPortRef(thisPort.fRef) == kOTSerialDevice) {

                    Str255          portNameP;

                    CFStringRef     portName;

                    CFNumberRef     portRef;

                    CFDictionaryRef portDict;

                    portName = NULL;

                    portRef  = NULL;

                    portDict = NULL;

                    OTGetUserPortNameFromPortRef(thisPort.fRef, portNameP);

                    portName = CFStringCreateWithPascalString(NULL, portNameP, CFStringGetSystemEncoding());

                    err = CFQError(portName);

                    if (err == noErr) {

                        portRef = CFNumberCreate(NULL, kCFNumberSInt32Type, &thisPort.fRef);

                        err = CFQError(portRef);

                    }

                    if (err == noErr) {

                        CFStringRef     keys[3];

                        CFTypeRef       values[3];

                        keys[0]   = kSCPropUserDefinedName;

                        values[0] = portName;

                        keys[1]   = kSCPropNetInterfaceHardware;

                        values[1] = kSCEntNetModem;

                        keys[2]   = kMyPropOTPortRef;

                        values[2] = portRef;

                        portDict = CFDictionaryCreate(NULL, (const void **) keys, (const void **) values, 3, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);

                        err = CFQError(portDict);

                    }

                    if (err == noErr) {

                        CFArrayAppendValue(result, portDict);

                    }

                    CFQRelease(portDict);

                    CFQRelease(portRef);

                    CFQRelease(portName);

                }

            } else {

                done = true;

            }

            portIndex += 1;

        } while (err == noErr && !done);

    }

    // Sort the resulting array.

    if (err == noErr) {

        CFArraySortValues(result, CFRangeMake( 0, CFArrayGetCount( result )), PortSorter, NULL);

    }

    // Clean up.

    if (err != noErr) {

        CFQRelease(result);

        result = NULL;

    }

    *portArray = result;

    assert( (err == noErr) == (*portArray != NULL) );

    return err;

}

static OSStatus FindNetworkConfig(OSType protocol, ConstStr255Param userVisibleName, 

                                  Boolean *found, NSHConfigurationEntry *result)

    // Given a protocol (for example, kOTCfgTypeTCPv4) and a user visible name, 

    // find the corresponding network configuration.

    //

    // If you just care about whether the configuration exists, you can pass NULL 

    // to result.

    //

    // On error, *found is undefined and, if result is not NULL, *result is also undefined

{

    OSStatus                    err;

    NSHConfigurationListHandle  configList;

    assert(userVisibleName != NULL);

    assert(found != NULL);

    // Create a handle containing every network configuration.

    configList = (NSHConfigurationListHandle) NewHandle(0);

    err = MoreMemError(configList);

    if (err == noErr) {

        err = NSHGetConfigurationList(protocol, configList);

    }

    // Iterate over that handle looking for one with a matching user visible name.

    if (err == noErr) {

        SInt8       s;

        ItemCount   configCount;

        ItemCount   configIndex;

        s = HGetState( (Handle) configList );

        assert(MemError() == noErr);

        HLock( (Handle) configList );

        assert(MemError() == noErr);

        configCount = NSHCountConfigurationList(configList);

        configIndex = 0;

        *found = false;

        while ( (configIndex < configCount) && ! *found ) {

            // I spent a lot of time trying to figure out the correct way to 

            // compare network configuration names, and eventualy decided that 

            // there's no good way to do this.  The basic problem is that different 

            // parts of the system do it in different ways.  You can see this with 

            // a simple test in the Modem control panel.  Open the control panel 

            // and create a configuration called "Test" and another configuration 

            // called "TŽst".  The control panel lets you do this because diacritics 

            // are considered distinct for duplicating and renaming a configuration.

            // Now make the configuration "Test" active and then bring up the 

            // configuration dialog again and try to delete the "TŽst" configuration.  

            // You can't do it!  Why?  It's because diacriticals are not considered 

            // distinct as far as highlighting the "Delete" button is concerned.  

            // Whoops.

            //

            // It turns out that networking the control panels uses three different 

            // mechanism to compare configuration names.

            //

            // 1. For sorting names, they use CompareText (actually IUMagString).

            // 2. For Duplicate and Rename comparison, they use RelString with 

            //    case insensitive and diacritical sensitive.

            // 3. For activating the Delete button, they use EqualString 

            //    (which has the same comparison table as RelString), however 

            //    this time it's case insensitive but diacritical *insensitive*.

            // 

            // All in all, the control panels do not give a consistent story 

            // about how to compare configuration names.

            // 

            // In addition, the actually Network Setup backend never compares 

            // the user-visible names of configurations, so I can't look to it 

            // for guidance.

            // 

            // This leaves me in a quandry.  Eventually I decided to make my 

            // code easier and use EqualString.  This is definitely not the 

            // right thing on non-Roman systems, but it isn't any worse than 

            // the control panels themselves.  Non-Roman users already have 

            // to deal with the broken control panels, so they probably won't 

            // mind me being equally broken.

            *found = EqualString((*configList)[configIndex].name, userVisibleName, false, true);

            if ( ! *found ) {

                configIndex += 1;

            }

        }

        // If the client requested a reference to the configuration, return it.

        if (*found && result != NULL) {

            *result = (*configList)[configIndex];

        }

        HSetState( (Handle) configList, s );

        assert(MemError() == noErr);

    }

    // Clean up.

    if (configList != NULL) {

        DisposeHandle( (Handle) configList );

        assert(MemError() == noErr);

    }

    return err;

}

extern pascal OSStatus QISADoesNetworkConfigExist(CFStringRef userVisibleName, Boolean *exists)

    // See comment in "QISAPlatform.h".

{

    OSStatus    err;

    Str255      userVisibleNameP;

    assert(userVisibleName != NULL);

    assert(exists          != NULL);

    *exists = false;

    err = CFQErrorBoolean( CFStringGetPascalString(userVisibleName, userVisibleNameP, sizeof(userVisibleName), CFStringGetSystemEncoding()) );

    if (err == noErr) {

        err = FindNetworkConfig(kOTCfgTypeTCPv4, userVisibleNameP, exists, NULL);

    }

    return err;

}

static OSStatus GetCCLFSSpec(ConstStr255Param cclName, FSSpec *fss)

    // Given a CCL name, return an FSSpec to the CCL file itself. 

    // We should probably search each domain for the CCL, much like we 

    // do in MoreSCCreateCCLArray, however I don't think that's necessary 

    // because domains don't make a lot of sense on traditional Mac OS.

{

    OSStatus    err;

    SInt16      vRef;

    SInt32      dirID;

    assert(cclName != NULL);

    assert(fss     != NULL);

    err = FindFolder(kOnSystemDisk, kModemScriptsFolderType, false, &vRef, &dirID);

    if (err == noErr) {

        err = FSMakeFSSpec( vRef, dirID, cclName, fss);

    }

    return err;

}

static OSStatus SetupNetworkConfig(const NSHConfigurationDigest *digest, NSHConfigurationEntry *modifiedConfig)

    // Given a network configuration digest (a big parameter block containing 

    // all of the information needed to set up a network configuration), create 

    // that configuration.  It overwrites the configuration if it already exists. 

    // Returns a reference to the configuration that was created (or overwritten).

{

    OSStatus                err;

    Boolean                 found;

    assert(digest         != NULL);

    assert(modifiedConfig != NULL);

    err = FindNetworkConfig(digest->fCommon.fProtocol, digest->fCommon.fConfigName, &found, modifiedConfig);

    if (err == noErr) {

        // If we found the named configuration, overwrite it using 

        // NSHSetConfiguration.  If we didn't, create a new configuration 

        // using NSHCreateConfiguration.  This even sets up modifiedConfig for us.

        if (found) {

            err = NSHSetConfiguration(modifiedConfig, digest);

        } else {

            err = NSHCreateConfiguration(digest, modifiedConfig);

        }

    }

    return err;

}

static OSStatus MakeNetworkConfig(ConstStr255Param userVisibleName, 

                                  OTPortRef portRef, 

                                  ConstStr255Param chosenCCL, 

                                  ConstStr255Param username, 

                                  ConstStr255Param password, 

                                  ConstStr255Param number, 

                                  Boolean useTerminal)

    // A sub-routine called by QISAMakeNetworkConfig to actually create 

    // a network configuration.

{

    OSStatus                err;

    NSHConfigurationDigest  tcpv4;              // the following consumes a truly massive amount of stack space!

    NSHConfigurationDigest  remote;

    NSHConfigurationDigest  modem;

    NSHConfigurationEntry   modemConfig;

    NSHConfigurationEntry   remoteConfig;

    NSHConfigurationEntry   tcpv4Config;

    // Set up the basic structures.

    // TCP/IP v4

    memset(&tcpv4, 0, sizeof(tcpv4));

    tcpv4.fTCPv4.fProtocol = kOTCfgTypeTCPv4;

    PLstrcpy(tcpv4.fTCPv4.fConfigName, userVisibleName);

    // tcpv4.fTCPv4.fPortRef handled below

    tcpv4.fTCPv4.fConfigMethod = kOTCfgManualConfig;

    tcpv4.fTCPv4.fIPAddress = 0;

    tcpv4.fTCPv4.fSubnetMask = 0;

    tcpv4.fTCPv4.fRouterList = NewHandle(0);

    assert(tcpv4.fTCPv4.fRouterList != NULL);

    tcpv4.fTCPv4.fDNSServerList = NewHandle(0);

    assert(tcpv4.fTCPv4.fDNSServerList != NULL);

    tcpv4.fTCPv4.fLocalDomain[0] = 0;

    tcpv4.fTCPv4.fAdminDomain[0] = 0;

    tcpv4.fTCPv4.fAppleTalkZone[0] = 0;

    tcpv4.fTCPv4.fFraming = 0;

    tcpv4.fTCPv4.fUnloadAttr = kOTCfgTCPActiveLoadedOnDemand;

    tcpv4.fTCPv4.fBelowIP = NULL;

    // Remote Access

    memset(&remote, 0, sizeof(remote));

    remote.fRemote.fProtocol = kOTCfgTypeRemote;

    PLstrcpy(remote.fRemote.fConfigName, userVisibleName);

    remote.fRemote.fGuestLogin = (username[0] == 0);

    remote.fRemote.fPasswordValid = true;

    PLstrcpy(remote.fRemote.fUserName,    username);

    PLstrcpy(remote.fRemote.fPassword,    password);

    PLstrcpy(remote.fRemote.fPhoneNumber, number);

    remote.fRemote.fRedialMode = kOTCfgRemoteRedialNone;

    remote.fRemote.fRedialTimes = 0;

    remote.fRemote.fRedialDelay = 0;

    remote.fRemote.fAlternatePhoneNumber[0] = 0;

    remote.fRemote.fVerboseLogging = true;

    remote.fRemote.fFlashIconWhileConnected = true;

    remote.fRemote.fPromptToRemainConnected = false;

    remote.fRemote.fPromptInterval = 15;

    remote.fRemote.fDisconnectIfIdle = true;

    remote.fRemote.fDisconnectInterval = 10 * 60 * 1000;

    remote.fRemote.fLaunchStatusApp = false;

    remote.fRemote.fSerialProtocol = kOTCfgRemoteProtocolPPP;

    remote.fRemote.fPPPConnectAutomatically = true;

    remote.fRemote.fPPPAllowModemCompression = true;

    remote.fRemote.fPPPAllowTCPIPHeaderCompression = true;

    if (useTerminal) {

        remote.fRemote.fPPPConnectMode = kOTCfgRemotePPPConnectScriptTerminalWindow;

    } else {

        remote.fRemote.fPPPConnectMode = kOTCfgRemotePPPConnectScriptNone;

    }

    remote.fRemote.fPPPConnectScriptName[0] = 0;

    remote.fRemote.fPPPConnectScript = NewHandle(0);

    assert(remote.fRemote.fPPPConnectScript != NULL);

    // Modem

    memset(&modem, 0, sizeof(modem));

    modem.fModem.fProtocol = kOTCfgTypeModem;

    PLstrcpy(modem.fModem.fConfigName, userVisibleName);

    modem.fModem.fPortRef = portRef;

    // modem.fModem.fModemScript handled below

    modem.fModem.fDialToneMode = kOTCfgModemDialToneNormal;

    modem.fModem.fSpeakerOn = true;

    modem.fModem.fPulseDial = false;

    // Set up the bits that might fail with an error.

    err = GetCCLFSSpec(chosenCCL, &modem.fModem.fModemScript);

    if (err == noErr) {

        OTPortRecord pppPort;

        if ( OTFindPort(&pppPort, "IPCP") ) {

            tcpv4.fTCPv4.fPortRef = pppPort.fRef;

        } else {

            err = kENXIOErr;

        }

    }

    // Create/overwrite each configuration.

    if (err == noErr) {

        err = SetupNetworkConfig(&modem,  &modemConfig);

    }

    if (err == noErr) {

        err = SetupNetworkConfig(&remote, &remoteConfig);

    }

    if (err == noErr) {

        err = SetupNetworkConfig(&tcpv4,  &tcpv4Config);

    }

    // Make each configuration active.  We really should make all 

    // of these changes as part of a single atomic transaction so 

    // that, if one fails, they all fail.  Right now it's possible 

    // to commit the Modem changes, fail while committing the 

    // Remote Access changes, and then never even try to commit 

    // the TCP/IP changes, thus leaving the system in an inconsistent 

    // state.  Network Setup has the ability to do this, but it's 

    // not exported via my Network Setup helpers library abstraction 

    // (notably I didn't make the same mistake for MoreSCF).  Right 

    // now I don't think it's worth my while redoing Network Setup 

    // helpers, so I'm just going to apply the ostrich algorithm 

    // (put my head in the sand and hope it doesn't happen).

    if (err == noErr) {

        err = NSHSelectConfiguration(&modemConfig);

    }

    if (err == noErr) {

        err = NSHSelectConfiguration(&remoteConfig);

    }

    if (err == noErr) {

        err = NSHSelectConfiguration(&tcpv4Config);

    }

    return err;

}

extern pascal OSStatus QISAMakeNetworkConfig(CFMutableDictionaryRef configDict)

    // See comment in "QISAPlatform.h".

    // This routine simply unpacks all of the parameters from configDict 

    // and then calls MakeNetworkConfig to do the real work.

{

    OSStatus        err;

    CFStringRef     usernameCF;

    CFStringRef     passwordCF;

    CFStringRef     numberCF;

    CFBooleanRef    useTerminalCF;

    CFStringRef     userVisibleNameCF;

    CFStringRef     chosenCCLCF;

    CFDictionaryRef chosenPortCF;

    CFNumberRef     portRefCF;

    Str255          username;

    Str255          password;

    Str255          number;

    Boolean         useTerminal;

    Str255          userVisibleName;

    Str255          chosenCCL;

    OTPortRef       portRef;

    assert(configDict != NULL);

    // Extract parameters from configDict.

    // Note that kQISAKeyTemporary is never set on current builds.

    if ( CFDictionaryContainsKey(configDict, kQISAKeyTemporary) ) {

        usernameCF    = CFDictionaryGetValue(configDict, kQISAKeySetupUsername);

        passwordCF    = CFDictionaryGetValue(configDict, kQISAKeySetupPassword);

        numberCF      = CFDictionaryGetValue(configDict, kQISAKeySetupNumber);

        useTerminalCF = CFDictionaryGetValue(configDict, kQISAKeySetupUseTerminal);

    } else {

        usernameCF    = CFDictionaryGetValue(configDict, kQISAKeyUsername);

        passwordCF    = CFDictionaryGetValue(configDict, kQISAKeyPassword);

        numberCF      = CFDictionaryGetValue(configDict, kQISAKeyNumber);

        useTerminalCF = CFDictionaryGetValue(configDict, kQISAKeyUseTerminal);

    }

    userVisibleNameCF = CFDictionaryGetValue(configDict, kQISAKeyUserVisibleName);

    chosenCCLCF       = CFDictionaryGetValue(configDict, kQISAKeyChosenCCL);

    chosenPortCF      = CFDictionaryGetValue(configDict, kQISAKeyChosenPort);

    // Check the parameters.

    err = noErr;

    if ( usernameCF == NULL || CFGetTypeID(usernameCF) != CFStringGetTypeID() ) {

        err = paramErr;

    }

    if ( passwordCF == NULL || CFGetTypeID(passwordCF) != CFStringGetTypeID() ) {

        err = paramErr;

    }

    if ( numberCF == NULL || CFGetTypeID(numberCF) != CFStringGetTypeID() ) {

        err = paramErr;

    }

    if ( useTerminalCF == NULL || CFGetTypeID(useTerminalCF) != CFBooleanGetTypeID() ) {

        err = paramErr;

    }

    if ( userVisibleNameCF == NULL || CFGetTypeID(userVisibleNameCF) != CFStringGetTypeID() ) {

        err = paramErr;

    }

    if ( chosenCCLCF == NULL || CFGetTypeID(chosenCCLCF) != CFStringGetTypeID() ) {

        err = paramErr;

    }

    if ( chosenPortCF == NULL || CFGetTypeID(chosenPortCF) != CFDictionaryGetTypeID() ) {

        err = paramErr;

    } else {

        portRefCF = CFDictionaryGetValue(chosenPortCF, kMyPropOTPortRef);

        if ( portRefCF == NULL || CFGetTypeID(portRefCF) != CFNumberGetTypeID() ) {

            err = paramErr;

        }

    }

    // Convert parameters to their non-CF equivalents.

    if (err == noErr) {

        err = CFQErrorBoolean( CFStringGetPascalString(usernameCF, username, sizeof(username), CFStringGetSystemEncoding()) );

    }

    if (err == noErr) {

        err = CFQErrorBoolean( CFStringGetPascalString(passwordCF, password, sizeof(password), CFStringGetSystemEncoding()) );

    }

    if (err == noErr) {

        err = CFQErrorBoolean( CFStringGetPascalString(numberCF, number, sizeof(number), CFStringGetSystemEncoding()) );

    }

    if (err == noErr) {

        useTerminal = CFBooleanGetValue(useTerminalCF);

    }

    if (err == noErr) {

        err = CFQErrorBoolean( CFStringGetPascalString(userVisibleNameCF, userVisibleName, sizeof(userVisibleName), CFStringGetSystemEncoding()) );

    }

    if (err == noErr) {

        err = CFQErrorBoolean( CFStringGetPascalString(chosenCCLCF, chosenCCL, sizeof(chosenCCL), CFStringGetSystemEncoding()) );

    }

    if (err == noErr) {

        err = CFQErrorBoolean(CFNumberGetValue(portRefCF, kCFNumberSInt32Type, &portRef));

    }

    // Call a function to do the real work.

    if (err == noErr) {

        err = MakeNetworkConfig(userVisibleName, portRef, chosenCCL, username, password, number, useTerminal);

    }

    return err;

}

extern pascal OSStatus QISAPlatformInit(CFBundleRef platformBundle)

    // See comment in "QISAPlatform.h".

{

    OSStatus        err;

    CFStringRef     defaultCCL;

    assert(platformBundle != NULL);

    gPlatformBundle = platformBundle;

    (void) CFRetain(gPlatformBundle);

    // Override the default CCL choice in MoreSCFCCLScanner.

    defaultCCL = CFBundleCopyLocalizedString(gPlatformBundle, CFSTR("DefaultCCL"), NULL, NULL);

    assert(defaultCCL != NULL);

    MoreSCSetDefaultCCL(defaultCCL);

    CFQRelease(defaultCCL);

    err = noErr;

    return err;

}