/* main():
* The equivalent of the MONCMD server built into uMon...
* Blocks on port 777 waiting for an incoming message, then
* responds with "thanks".
*/
int
main(int argc, char *argv[])
{
int rc = 0;
unetStart();
cmdInit();
mon_printf("%s: MONCMD server using uMon's ethernet API...\n",
argv[0]);
/* This loop processes incoming UDP and incoming serial port
* (console) activity... Terminate on reception of ctrl-c
* (0x03) from console.
*/
while(1) {
if (mon_gotachar()) {
int c = mon_getchar();
if (c == 0x03) {
mon_printf("\n<ctrl-c>\n");
break;
}
else
processChar(c);
}
/* Set up the server to receive packets on any port...
* Then after udpRecvFrom returns, use the value of u.dport
* to determine which port the packet came in on.
*/
udpInfo.dport = ANY_UDP_PORT;
udpInfo.packet = (char *)unetPacket;
udpInfo.plen = sizeof(unetPacket);
/* Check for an incoming packet. This does not block. It will
* return negative if there is an error, zero of there is no packet
* pending; else some positive number representing the incoming
* packet size.
*/
rc = udpRecvFrom(&udpInfo);
if (rc > 0) {
if (udpInfo.dport == 777) {
udp_umoncmd((char *)udpInfo.udata);
}
else {
mon_printf("\nUDP rcv'd on port %d, from %d.%d.%d.%d:%d ...\n",
udpInfo.dport,
IP1(udpInfo.sip.s_addr), IP2(udpInfo.sip.s_addr),
IP3(udpInfo.sip.s_addr), IP4(udpInfo.sip.s_addr),
udpInfo.sport);
mon_printmem((char *)udpInfo.udata,rc,1);
}
}
else if (rc < 0) {
unetError("recv",rc,UNETACT_ALL);
}
}
unetStop();
return(0);
}
/*
* Read one character from UART.
*
* return -1 if there's no data, otherwise return
* the character in lowest 8 bits of returned int.
*/
static int umoncons_read(int minor)
{
if ( !mon_gotachar() )
return -1;
return mon_getchar();
}