* not supported). If no additional routes are to be set up, use `-'
* or supply an empty argument.
*
- * Each <config> item - whether a line file such as
- * /etc/userv/ipif-networks, or supplied on the service program
- * command line - is one of:
+ * Each <config> item - whether a line in a file such as
+ * /etc/userv/ipif-networks, or the single trusted argument supplied
+ * on the service program command line - is one of:
*
* /<config-file-name>
* ./<config-file-name>
}
static void rx_packet(const uint8_t *packet, int len) {
+ if (!len)
+ return;
for (;;) {
int r= write(tunfd, packet, len);
if (r<0) {
if (errno==EINTR) continue;
- if (errno==EAGAIN) return; /* oh well */
+ if (errno==EAGAIN || errno==ENOMEM) return; /* oh well */
sysfatal("error writing packet to tun (transmitting)");
}
assert(r==len);
r= read(0, input_buf + input_waiting, want);
if (r>0) {
input_waiting += r;
- assert(r < sizeof(input_buf));
+ assert(input_waiting <= sizeof(input_buf));
more_rx_data(input_buf, rx_packet_buf);
} else if (r==0) {
terminate(0);