size_t
gaim_xfer_read(GaimXfer *xfer, char **buffer)
{
size_t s, r;
g_return_val_if_fail(xfer != NULL, 0);
g_return_val_if_fail(buffer != NULL, 0);
if (gaim_xfer_get_size(xfer) == 0)
s = 4096;
else
s = MIN(gaim_xfer_get_bytes_remaining(xfer), 4096);
if (xfer->ops.read != NULL)
r = (xfer->ops.read)(buffer, xfer);
else {
*buffer = g_malloc0(s);
r = read(xfer->fd, *buffer, s);
if ((gaim_xfer_get_size(xfer) > 0) &&
((gaim_xfer_get_bytes_sent(xfer)+r) >= gaim_xfer_get_size(xfer)))
gaim_xfer_set_completed(xfer, TRUE);
}
return r;
}
/* just in case you were wondering, this is why DCC is gay */
static void irc_dccsend_send_read(gpointer data, int source, GaimInputCondition cond)
{
GaimXfer *xfer = data;
struct irc_xfer_send_data *xd = xfer->data;
char *buffer[16];
int len;
len = read(source, buffer, sizeof(buffer));
if (len < 0 && errno == EAGAIN)
return;
else if (len <= 0) {
/* XXX: Shouldn't this be canceling the transfer? */
gaim_input_remove(xd->inpa);
xd->inpa = 0;
return;
}
xd->rxqueue = g_realloc(xd->rxqueue, len + xd->rxlen);
memcpy(xd->rxqueue + xd->rxlen, buffer, len);
xd->rxlen += len;
while (1) {
size_t acked;
if (xd->rxlen < 4)
break;
acked = ntohl(*((gint32 *)xd->rxqueue));
xd->rxlen -= 4;
if (xd->rxlen) {
unsigned char *tmp = g_memdup(xd->rxqueue + 4, xd->rxlen);
g_free(xd->rxqueue);
xd->rxqueue = tmp;
} else {
g_free(xd->rxqueue);
xd->rxqueue = NULL;
}
if (acked >= gaim_xfer_get_size(xfer)) {
gaim_input_remove(xd->inpa);
xd->inpa = 0;
gaim_xfer_set_completed(xfer, TRUE);
gaim_xfer_end(xfer);
return;
}
}
}
/* just in case you were wondering, this is why DCC is gay */
static void gaym_dccsend_send_read(gpointer data, int source, GaimInputCondition cond)
{
GaimXfer *xfer = data;
struct gaym_xfer_send_data *xd = xfer->data;
char *buffer[16];
int len;
if ((len = read(source, buffer, sizeof(buffer))) <= 0) {
gaim_input_remove(xd->inpa);
xd->inpa = 0;
return;
}
xd->rxqueue = g_realloc(xd->rxqueue, len + xd->rxlen);
memcpy(xd->rxqueue + xd->rxlen, buffer, len);
xd->rxlen += len;
while (1) {
int acked;
if (xd->rxlen < 4)
break;
acked = ntohl(*((gint32 *)xd->rxqueue));
xd->rxlen -= 4;
if (xd->rxlen) {
char *tmp = g_memdup(xd->rxqueue + 4, xd->rxlen);
g_free(xd->rxqueue);
xd->rxqueue = tmp;
} else {
g_free(xd->rxqueue);
xd->rxqueue = NULL;
}
if (acked >= gaim_xfer_get_size(xfer)) {
gaim_input_remove(xd->inpa);
xd->inpa = 0;
gaim_xfer_set_completed(xfer, TRUE);
gaim_xfer_end(xfer);
return;
}
}
}
