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lightning-sunbird  0.9+nobinonly
Functions
w2a.cpp File Reference
#include "mozce_internal.h"

Go to the source code of this file.

Functions

int w2a_buffer (const unsigned short *inWideString, int inWideChars, char *outACPString, int inACPChars)
char * w2a_malloc (const unsigned short *inWideString, int inWideChars, int *outACPChars)

Function Documentation

int w2a_buffer ( const unsigned short *  inWideString,
int  inWideChars,
char *  outACPString,
int  inACPChars 
)

Definition at line 43 of file w2a.cpp.

{
    int retval = 0;

    /*
    **  Start off by terminating the out argument if appropriate.
    */
    if(NULL != outACPString && 0 != inACPChars)
    {
        *outACPString = '\0';
    }

    /*
    **  Sanity check arguments.
    */
    if(NULL != inWideString && 0 != inWideChars && (0 == inACPChars || NULL != outACPString))
    {
        /*
        **  Attempt the conversion.
        */
        retval = WideCharToMultiByte(
                                     CP_ACP,
                                     0,
                                     inWideString,
                                     inWideChars,
                                     outACPString,
                                     inACPChars,
                                     NULL,
                                     NULL
                                     );
    }

    return retval;
}

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char* w2a_malloc ( const unsigned short *  inWideString,
int  inWideChars,
int outACPChars 
)

Definition at line 79 of file w2a.cpp.

{
    LPSTR retval = NULL;

    /*
    **  Initialize any out arguments.
    */
    if(NULL != outACPChars)
    {
        *outACPChars = 0;
    }

    /*
    **  Initialize the wide char length if requested.
    **  We do this here to avoid doing it twice in calls to w2a_buffer.
    */
    if(-1 == inWideChars)
    {
        if(NULL != inWideString)
        {
            /*
            **  Plus one so the terminating character is included.
            */
            inWideChars = (int)wcslen(inWideString) + 1;
        }
        else
        {
            inWideChars = 0;
        }
    }

    /*
    **  Sanity check arguments.
    */
    if(NULL != inWideString && 0 != inWideChars)
    {
        int charsRequired = 0;

        /*
        **  Determine the size of buffer required for the conversion.
        */
        charsRequired = w2a_buffer(inWideString, inWideChars, NULL, 0);
        if(0 != charsRequired)
        {
            LPSTR heapBuffer = NULL;

            heapBuffer = (LPSTR)malloc((size_t)charsRequired * sizeof(CHAR));
            if(NULL != heapBuffer)
            {
                int acpChars = 0;

                /*
                **  Real thing this time.
                */
                acpChars = w2a_buffer(inWideString, inWideChars, heapBuffer, charsRequired);
                if(0 != acpChars)
                {
                    retval = heapBuffer;
                    if(NULL != outACPChars)
                    {
                        *outACPChars = acpChars;
                    }
                }
                else
                {
                    /*
                    **  Something wrong.
                    **  Clean up.
                    */
                    free(heapBuffer);
                }
            }
        }
    }

    return retval;
}

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