how to make compatible communication between linux and win32

naveenisback · 07-31-2009, 01:15 AM

Hi,

I wrote a server program in redflag(almost like redhat). I am using 'char' buffer to send the message to client(running in windows). I succeed in communicating between server and client. when i try to print the message in client(code written in vc++, and the receive buffer type is TCHAR), it is printing in the form of boxes.

After i realised that the size of wchar_t in unix is 32 bit and in win32 it is 16 bit. si i used iconv() call to convert to 16 bit format and trying to send, but this time, I am able to send 4 characters only.

pls suggest some ideas to make compatible communication between windows ang linux.

Thankz in Advance.

converting function from utf8 to utf-16

Code:

char* convert(char* inbuf, int length)
{
        iconv_t cd;
        char *instr;
        char *outbuf;
        char *outptr;
        unsigned int insize=length;
        unsigned int outputbufsize=4096;
        unsigned int avail=outputbufsize;
        unsigned int nconv;

        instr=inbuf;
        outbuf=(char *)malloc(outputbufsize);
        outptr=outbuf;
        memset(outbuf,'\0',outputbufsize);

        cd=iconv_open("utf-16", "utf-8");
        if(cd==(iconv_t)-1)
        {
                printf("fail.\n");
        }
        nconv=iconv(cd,&instr,&insize,&outptr,&avail);

return outbuf;
}

Wim Sturkenboom · 07-31-2009, 08:55 AM

Just a guess that your sending function uses something like sizeof(outbuf) when sending to the client. As outbuf is a pointer, its size is 4 (in 32 bit environments).