regproc.c

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        bTheKeyIsOpen = TRUE;

    return hRes;

}

/******************************************************************************
 * Extracts from [HKEY\some\key\path] or HKEY\some\key\path types of line
 * the key name (what starts after the first '\')
 */
LPSTR getRegKeyName(LPSTR lpLine)
{
    LPSTR keyNameBeg;
    char  lpLineCopy[KEY_MAX_LEN];

    if (lpLine == NULL)
        return NULL;

    strcpy(lpLineCopy, lpLine);

    keyNameBeg = strchr(lpLineCopy, '\\');    /* The key name start by '\' */
    if (keyNameBeg) {
        LPSTR keyNameEnd;

        keyNameBeg++;                             /* is not part of the name */
        keyNameEnd = strchr(lpLineCopy, ']');
        if (keyNameEnd) {
            *keyNameEnd = '\0';               /* remove ']' from the key name */
        }
    } else {
        keyNameBeg = lpLineCopy + strlen(lpLineCopy); /* branch - empty string */
    }
    currentKeyName = HeapAlloc(GetProcessHeap(), 0, strlen(keyNameBeg) + 1);
    CHECK_ENOUGH_MEMORY(currentKeyName);
    strcpy(currentKeyName, keyNameBeg);
    return currentKeyName;
}

/******************************************************************************
 * Extracts from [HKEY\some\key\path] or HKEY\some\key\path types of line
 * the key class (what ends before the first '\')
 */
HKEY getRegClass(LPSTR lpClass)
{
    LPSTR classNameEnd;
    LPSTR classNameBeg;
    unsigned int i;

    char  lpClassCopy[KEY_MAX_LEN];

    if (lpClass == NULL)
        return (HKEY)ERROR_INVALID_PARAMETER;

    lstrcpynA(lpClassCopy, lpClass, KEY_MAX_LEN);

    classNameEnd  = strchr(lpClassCopy, '\\');    /* The class name ends by '\' */
    if (!classNameEnd)                            /* or the whole string */
    {
        classNameEnd = lpClassCopy + strlen(lpClassCopy);
        if (classNameEnd[-1] == ']')
        {
            classNameEnd--;
        }
    }
    *classNameEnd = '\0';                       /* Isolate the class name */
    if (lpClassCopy[0] == '[') {
        classNameBeg = lpClassCopy + 1;
    } else {
        classNameBeg = lpClassCopy;
    }

    for (i = 0; i < REG_CLASS_NUMBER; i++) {
        if (!strcmp(classNameBeg, reg_class_names[i])) {
            return reg_class_keys[i];
        }
    }
    return (HKEY)ERROR_INVALID_PARAMETER;
}

/******************************************************************************
 * Close the currently opened key.
 */
void closeKey(void)
{
    RegCloseKey(currentKeyHandle);

    HeapFree(GetProcessHeap(), 0, currentKeyName); /* Allocated by getKeyName */

    bTheKeyIsOpen    = FALSE;

    currentKeyName   = NULL;
    currentKeyClass  = 0;
    currentKeyHandle = 0;
}

/******************************************************************************
 * This function is the main entry point to the setValue type of action.  It
 * receives the currently read line and dispatch the work depending on the
 * context.
 */
void doSetValue(LPSTR stdInput)
{
    /*
     * We encountered the end of the file, make sure we
     * close the opened key and exit
     */
    if (stdInput == NULL) {
        if (bTheKeyIsOpen != FALSE)
            closeKey();

        return;
    }

    if      ( stdInput[0] == '[')      /* We are reading a new key */
    {
        if ( bTheKeyIsOpen != FALSE )
            closeKey();                    /* Close the previous key before */

        if ( openKey(stdInput) != ERROR_SUCCESS )
            fprintf(stderr,"%s: setValue failed to open key %s\n",
                    getAppName(), stdInput);
    } else if( ( bTheKeyIsOpen ) &&
               (( stdInput[0] == '@') || /* reading a default @=data pair */
                ( stdInput[0] == '\"'))) /* reading a new value=data pair */
    {
        processSetValue(stdInput);
    } else                               /* since we are assuming that the */
    {                                  /* file format is valid we must   */
        if ( bTheKeyIsOpen )             /* be reading a blank line which  */
            closeKey();                    /* indicate end of this key processing */
    }
}

/******************************************************************************
 * This function is the main entry point to the queryValue type of action.  It
 * receives the currently read line and dispatch the work depending on the
 * context.
 */
void doQueryValue(LPSTR stdInput)
{
    /*
     * We encountered the end of the file, make sure we
     * close the opened key and exit
     */
    if (stdInput == NULL) {
        if (bTheKeyIsOpen != FALSE)
            closeKey();

        return;
    }

    if      ( stdInput[0] == '[')      /* We are reading a new key */
    {
        if ( bTheKeyIsOpen != FALSE )
            closeKey();                    /* Close the previous key before */

        if ( openKey(stdInput) != ERROR_SUCCESS )
            fprintf(stderr,"%s: queryValue failed to open key %s\n",
                    getAppName(), stdInput);
    } else if( ( bTheKeyIsOpen ) &&
               (( stdInput[0] == '@') || /* reading a default @=data pair */
                ( stdInput[0] == '\"'))) /* reading a new value=data pair */
    {
        processQueryValue(stdInput);
    } else                               /* since we are assuming that the */
    {                                  /* file format is valid we must   */
        if ( bTheKeyIsOpen )             /* be reading a blank line which  */
            closeKey();                    /* indicate end of this key processing */
    }
}

/******************************************************************************
 * This function is the main entry point to the deleteValue type of action.  It
 * receives the currently read line and dispatch the work depending on the
 * context.
 */
void doDeleteValue(LPSTR line)
{
    UNREFERENCED_PARAMETER(line);
    fprintf(stderr,"%s: deleteValue not yet implemented\n", getAppName());
}

/******************************************************************************
 * This function is the main entry point to the deleteKey type of action.  It
 * receives the currently read line and dispatch the work depending on the
 * context.
 */
void doDeleteKey(LPSTR line)
{
    UNREFERENCED_PARAMETER(line);
    fprintf(stderr,"%s: deleteKey not yet implemented\n", getAppName());
}

/******************************************************************************
 * This function is the main entry point to the createKey type of action.  It
 * receives the currently read line and dispatch the work depending on the
 * context.
 */
void doCreateKey(LPSTR line)
{
    UNREFERENCED_PARAMETER(line);
    fprintf(stderr,"%s: createKey not yet implemented\n", getAppName());
}

/******************************************************************************
 * This function is a wrapper for the setValue function.  It prepares the
 * land and clean the area once completed.
 * Note: this function modifies the line parameter.
 *
 * line - registry file unwrapped line. Should have the registry value name and
 *      complete registry value data.
 */
void processSetValue(LPSTR line)
{
    LPSTR val_name;                   /* registry value name   */
    LPSTR val_data;                   /* registry value data   */

    int line_idx = 0;                 /* current character under analysis */
    HRESULT hRes = 0;

    /* get value name */
    if (line[line_idx] == '@' && line[line_idx + 1] == '=') {
        line[line_idx] = '\0';
        val_name = line;
        line_idx++;
    } else if (line[line_idx] == '\"') {
        line_idx++;
        val_name = line + line_idx;
        while (TRUE) {
            /* check if the line is unterminated (otherwise it may loop forever!) */
            if (line[line_idx] == '\0') {
                fprintf(stderr,"Warning! unrecognized line:\n%s\n", line);
                return;
            } else
            if (line[line_idx] == '\\')   /* skip escaped character */
            {
                line_idx += 2;
            } else {
                if (line[line_idx] == '\"') {
                    line[line_idx] = '\0';
                    line_idx++;
                    break;
                } else {
                    line_idx++;
                }
            }
        }
        if (line[line_idx] != '=') {
            line[line_idx] = '\"';
            fprintf(stderr,"Warning! unrecognized line:\n%s\n", line);
            return;
        }

    } else {
        fprintf(stderr,"Warning! unrecognized line:\n%s\n", line);
        return;
    }
    line_idx++;                   /* skip the '=' character */
    val_data = line + line_idx;

    REGPROC_unescape_string(val_name);
    hRes = setValue(val_name, val_data);
    if ( hRes != ERROR_SUCCESS )
        fprintf(stderr,"%s: ERROR Key %s not created. Value: %s, Data: %s\n",
                getAppName(),
                currentKeyName,
                val_name,
                val_data);
}

/******************************************************************************
 * This function is a wrapper for the queryValue function.  It prepares the
 * land and clean the area once completed.
 */
void processQueryValue(LPSTR cmdline)
{
    UNREFERENCED_PARAMETER(cmdline);
    fprintf(stderr,"ERROR!!! - temporary disabled");
    exit(1);
#if 0
    LPSTR   argv[QUERY_VALUE_MAX_ARGS];/* args storage    */
    LPSTR   token      = NULL;         /* current token analyzed */
    ULONG   argCounter = 0;            /* counter of args */
    INT     counter;
    HRESULT hRes       = 0;
    LPSTR   keyValue   = NULL;
    LPSTR   lpsRes     = NULL;

    /*
     * Init storage and parse the line
     */
    for (counter=0; counter<QUERY_VALUE_MAX_ARGS; counter++)
        argv[counter]=NULL;

    while( (token = getToken(&cmdline, queryValueDelim[argCounter])) != NULL ) {
        argv[argCounter++] = getArg(token);

        if (argCounter == QUERY_VALUE_MAX_ARGS)
            break;  /* Stop processing args no matter what */
    }

    /* The value we look for is the first token on the line */
    if ( argv[0] == NULL )
        return; /* SHOULD NOT HAPPEN */
    else
        keyValue = argv[0];

    if( (keyValue[0] == '@') && (strlen(keyValue) == 1) ) {
        LONG  lLen  = KEY_MAX_LEN;
        CHAR*  lpsData=HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,KEY_MAX_LEN);
        /*
         * We need to query the key default value
         */
        hRes = RegQueryValue(
                   currentKeyHandle,
                   currentKeyName,
                   (LPBYTE)lpsData,
                   &lLen);

        if (hRes==ERROR_MORE_DATA) {
            lpsData=HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,lpsData,lLen);
            hRes = RegQueryValue(currentKeyHandle,currentKeyName,(LPBYTE)lpsData,&lLen);
        }

        if (hRes == ERROR_SUCCESS) {
            lpsRes = HeapAlloc( GetProcessHeap(), 0, lLen);
            lstrcpynA(lpsRes, lpsData, lLen);
        }
    } else {
        DWORD  dwLen  = KEY_MAX_LEN;
        BYTE*  lpbData=HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,KEY_MAX_LEN);
        DWORD  dwType;
        /*
         * We need to query a specific value for the key
         */
        hRes = RegQueryValueEx(
                   currentKeyHandle,
                   keyValue,
                   0,
                   &dwType,
                   (LPBYTE)lpbData,
                   &dwLen);

        if (hRes==ERROR_MORE_DATA) {
            lpbData=HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,lpbData,dwLen);
            hRes = RegQueryValueEx(currentKeyHandle,keyValue,NULL,&dwType,(LPBYTE)lpbData,&dwLen);
        }

        if (hRes == ERROR_SUCCESS) {
            /*
             * Convert the returned data to a displayable format
             */
            switch ( dwType ) {
            case REG_SZ:
            case REG_EXPAND_SZ: {
                    lpsRes = HeapAlloc( GetProcessHeap(), 0, dwLen);
                    lstrcpynA(lpsRes, lpbData, dwLen);
                    break;
                }
            case REG_DWORD: {
                    lpsRes = convertHexToDWORDStr(lpbData, dwLen);
                    break;
                }
            default: {
                    lpsRes = convertHexToHexCSV(lpbData, dwLen);
                    break;
                }
            }
        }

        HeapFree(GetProcessHeap(), 0, lpbData);
    }


    if ( hRes == ERROR_SUCCESS )
        fprintf(stderr,
                "%s: Value \"%s\" = \"%s\" in key [%s]\n",
                getAppName(),
                keyValue,
                lpsRes,
                currentKeyName);

    else
        fprintf(stderr,"%s: ERROR Value \"%s\" not found for key \"%s\".\n",
                getAppName(),
                keyValue,
                currentKeyName);

    /*
     * Do some cleanup
     */
    for (counter=0; counter<argCounter; counter++)
        if (argv[counter] != NULL)
            HeapFree(GetProcessHeap(), 0, argv[counter]);

    if (lpsRes != NULL)
        HeapFree(GetProcessHeap(), 0, lpsRes);
#endif
}

/******************************************************************************
 * Calls command for each line of a registry file.
 * Correctly processes comments (in # form), line continuation.
 *
 * Parameters:
 *   in - input stream to read from
 *   command - command to be called for each line
 */
void processRegLines(FILE *in, CommandAPI command)
{
    LPSTR line           = NULL;  /* line read from input stream */
    size_t lineSize       = REG_VAL_BUF_SIZE;

    line = HeapAlloc(GetProcessHeap(), 0, lineSize);
    CHECK_ENOUGH_MEMORY(line);

    while (!feof(in)) {
        LPSTR s; /* The pointer into line for where the current fgets should read */
        s = line;
        for (;;) {
            size_t size_remaining;
            int size_to_get;
            char *s_eol; /* various local uses */

            /* Do we need to expand the buffer ? */
            assert (s >= line && s <= line + lineSize);
            size_remaining = lineSize - (s-line);
            if (size_remaining < 2) /* room for 1 character and the \0 */
            {
                char *new_buffer;
                size_t new_size = lineSize + REG_VAL_BUF_SIZE;
                if (new_size > lineSize) /* no arithmetic overflow */
                    new_buffer = HeapReAlloc (GetProcessHeap(), 0, line, new_size);
                else
                    new_buffer = NULL;
                CHECK_ENOUGH_MEMORY(new_buffer);
                line = new_buffer;
                s = line + lineSize - size_remaining;
                lineSize = new_size;
                size_remaining = lineSize - (s-line);
            }

            /* Get as much as possible into the buffer, terminated either by
             * eof, error, eol or getting the maximum amount.  Abort on error.
             */
            size_to_get = (int) (size_remaining > INT_MAX ? INT_MAX : size_remaining);
            if (NULL == fgets (s, size_to_get, in)) {
                if (ferror(in)) {
                    perror ("While reading input");
                    exit (IO_ERROR);
                } else {
                    assert (feof(in));
                    *s = '\0';
                    /* It is not clear to me from the definition that the
                     * contents of the buffer are well defined on detecting
                     * an eof without managing to read anything.
                     */
                }
            }

            /* If we didn't read the eol nor the eof go around for the rest */
            s_eol = strchr (s, '\n');
            if (!feof (in) && !s_eol) {
                s = strchr (s, '\0');
                /* It should be s + size_to_get - 1 but this is safer */
                continue;
            }

            /* If it is a comment line then discard it and go around again */