Re: [Bluez-devel] l2cap xfer fails

[Mauro Tortonesi <mtortonesi@ing.unife.it>]

On Wednesday 28 January 2004 12:00, Mauro Tortonesi wrote:
> On Wednesday 28 January 2004 11:35, Mauro Tortonesi wrote:
> > i've been testing bluetooth support for nc6. unfortunately, i couldn't
> > transfer data. both kernels are 2.4.25-pre7.
>
> sorry, my kmail client sucks. it keeps crashing and sending unfinished
> emails instead of postponining them. good old pine was not so bad :-(
>
> what i wanted to say is that i can transfer (over L2CAP) data from console,
> but transfer of files redirected to stdin always fails. perhaps i am doing
> something wrong? such as calling write(2) over L2CAP sockets with buffers
> larger that 762 bytes?

s/762/672/

ok, it seems that the problem was really that the size of the buffers i was 
passing to write(2) is too big. with this code:

#define IMTU 672

static ssize_t btwrite(int fd, const char *buf, size_t count)
{
        ssize_t res, pos = 0;

        while (count > pos) {
                res = send(fd, buf + pos, MIN(IMTU, count - pos), 0);
                switch (res) {
                case -1:
                        if (errno == EINTR || errno == EAGAIN)
                        continue;
                case 0:
                        return (res);
                default:
                        pos += res;
                }
        }
        return (pos);
}

i can finally use a write(2)-compatible api for writing on L2CAP sockets.

-- 
Aequam memento rebus in arduis servare mentem...

Mauro Tortonesi                 mtortonesi@ing.unife.it
                                mauro@deepspace6.net
                                mauro@ferrara.linux.it
Deep Space 6 - IPv6 with Linux  http://www.deepspace6.net
Ferrara Linux User Group        http://www.ferrara.linux.it





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