Re: Re(2): Not able to get success with setsockopt
Re: Re(2): Not able to get success with setsockopt
- Subject: Re: Re(2): Not able to get success with setsockopt
- From: "Basavaraj Pujar" <email@hidden>
- Date: Mon, 20 Feb 2006 12:22:16 +0530
Thank you. It worked by changing it into int type.
Regards,
Raj
On 2/17/06, Peter Lovell <email@hidden> wrote:
> >
> >On Feb 17, 2006, at 05:02 , innovator information wrote:
> >
> >> Hello,
> >>
> >> I am not able to pass through setsockopt in Mac OS Tiger.
> >>
> >> setsockopt( socketFd, SOL_SOCKET, SO_BROADCAST, &cOptVal, sizeof(char)
> >> where cOptVal is 1.
> >>
> >> It is always returning < 0.
> >> what is wrong with this.
> >
> >A return value of "-1" from a system call is usually accompanied by
> >an explanation in the global "errno" (see the man page for setsockopt
> >()). That will tell you what is wrong.
>
>
> ... and the first thing I'd check is the size of the variable to pass.
>
> I suspect that you might have more luck defining it as an "int" and
> saying it's four bytes.
>
> This has always been a source of much confusion, at least for me.
>
> Cheers.....Peter
>
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