Amiga ISO Collection/AmigaUtilCD2.iso/Misc/MF0.9.LHA/MFileMode/Source/Main.c

C/C++ Source or Header | 1994-09-05 | 4.0 KB | 229 lines

// Main.c - Copyright © 1994 Mike Austin

#include <stdio.h>
#include <string.h>
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/intuition.h>
#include <proto/gadtools.h>
#include <proto/multiuser.h>
#include <pragmas/nofrag_pragmas.h>
#include <proto/nofrag_protos.h>
#include "MFileMode.h"
#include "GUI.h"

const UBYTE    *Version = "$VER: MFileMode 0.9 "__AMIGADATE__;
__aligned struct FileInfoBlock    FileInfo;
struct muBase        *muBase;
struct Library        *NoFragBase;
struct List            FileList;
struct muUserInfo    *UserInfo;
struct muGroupInfo    *GroupInfo;
struct MemoryChain    *MemChain;
UWORD                EntryNum = 0;
UBYTE                **FileNames;
UBYTE                Path[81] = "";
BOOL                Changed = FALSE;
BOOL                Selected = FALSE;

struct EasyStruct    EasyReq = {
    sizeof(struct EasyStruct),
    0,
    "MFileMode",
    "%s %s",
    "OK"
};

long main(void)
{
    ULONG                Signals, WinSig;
    BOOL                Running = TRUE;

    NewList(&FileList);

    if(Init())
    {
        if(!SetupScreen())
        {
            if(!OpenMainWindow())
            {
                MainRender();

                WinSig = 1L << MainWnd->UserPort->mp_SigBit;

                LoadVolumes(&FileList);

                while(Running)
                {
                    Signals = Wait(WinSig | SIGBREAKF_CTRL_C);

                    if(Signals & WinSig)
                    {
                        Running = HandleMainIDCMP();
                    }
                    else if(Signals & SIGBREAKF_CTRL_C)
                    {
                        Running = FALSE;
                    }
                }

                CloseMainWindow();
            }
            else
                AlertUser(MainWnd, "Can't open window", "");

            CloseDownScreen();
        }
        else
            AlertUser(MainWnd, "Can't set up screen", "");

        FreeList(&FileList);

        Cleanup();
    }

    return 0;
}

BOOL Init(VOID)
{
    if(muBase = (struct muBase *)OpenLibrary("multiuser.library", 39))
    {
        if(NoFragBase = OpenLibrary("nofrag.library", 2))
        {
            if(MemChain = GetMemoryChain(4096))
            {
                if(UserInfo = muAllocUserInfo())
                {
                    if(GroupInfo = muAllocGroupInfo())
                    {
                        return TRUE;
                    }

                    muFreeGroupInfo(GroupInfo);
                }
                else
                    AlertUser(NULL, "Can't allocate user info", "");

                FreeMemoryChain(MemChain, TRUE);
            }
            else
                AlertUser(NULL, "Can't get memory chain", "");

            CloseLibrary(NoFragBase);
        }
        else
            AlertUser(NULL, "Can't open nofrag.library", "2.0");

        CloseLibrary((struct Library *)muBase);
    }
    else
        AlertUser(NULL, "Can't open multiuser.library ", "39");

    return FALSE;
}

VOID Cleanup(VOID)
{
    muFreeGroupInfo(GroupInfo);
    muFreeUserInfo(UserInfo);
    FreeMemoryChain(MemChain, TRUE);
    CloseLibrary(NoFragBase);
    CloseLibrary((struct Library *)muBase);
}

int MainCloseWindow(VOID)
{
    WriteData();

    return FALSE;
}

VOID WriteData(VOID)
{
    struct DevProc    *DevProc;
    BPTR            FileLock;
    UBYTE            TempPath[81];

    if(Changed && Selected)
    {
        strcpy(TempPath, Path);
        AddPart(TempPath, FileNames[EntryNum], 80);
        ReadGadgets(&FileInfo);
        muSetProtection(TempPath, FileInfo.fib_Protection);

        if(DevProc = GetDeviceProc(TempPath, NULL))
        {
            if(FileLock = Lock(TempPath, ACCESS_READ))
            {
                if(!DoPkt(DevProc->dvp_Port, ACTION_SET_OWNER, 0L, FileLock,
                        MKBADDR(NULL), (LONG)UserInfo->uid << 16 |
                        (LONG)UserInfo->gid, 0L))
                {
                    AlertUser(MainWnd, "Can't set owner", "");
                }

                UnLock(FileLock);
            }
            else
                AlertUser(MainWnd, "Can't lock file", TempPath);

            FreeDeviceProc(DevProc);
        }
        else
            AlertUser(MainWnd, "Can't get device proccess", TempPath);

        Changed = FALSE;
    }
}

VOID FreeList(struct List *List)
{
    struct Node    *Node = List->lh_Head;
    struct Node    *Next;

    while(Next = Node->ln_Succ)
    {
        FreeVecItem(MemChain, Node);

        Node = Next;
    }

    FreeVecItem(MemChain, FileNames);

    NewList(&FileList);
}

UBYTE *BSTR2CSTR(BSTR BString)
{
    static UBYTE Buffer[255];
    static UBYTE *String;

    String = BADDR(BString);
    CopyMem(&(String[1]), Buffer, String[0]);
    Buffer[String[0]] = '\0';

    return Buffer;
}

VOID AlertUser(struct Window *Win, UBYTE *String, UBYTE *Arg)
{
    struct Requester    Req;

    if(Win)
    {
        InitRequester(&Req);

        if(Request(&Req, Win))
        {
            EasyRequest(MainWnd, &EasyReq, NULL, String, Arg);

            EndRequest(&Req, Win);
        }
    }
    else
    {
        EasyRequest(MainWnd, &EasyReq, NULL, String, Arg);
    }
}