/*
 * Functions for sending GPF system primitives to the target
 */

#include <sys/types.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include "pktmux.h"
#include "limits.h"
#include "exitcodes.h"

send_gpf_sysprim(stackdest, primstr)
	char *stackdest, *primstr;
{
	unsigned intlen;
	u_char sendpkt[MAX_PKT_TO_TARGET+1];
	unsigned pktlen;

	if (strlen(stackdest) > 4) {
		printf(
		  "error: stack destination arg may not exceed 4 characters\n");
		return(ERROR_USAGE);
	}
	intlen = 12 + strlen(primstr);
	pktlen = intlen + 4;
	if (pktlen > MAX_PKT_TO_TARGET) {
		printf("error: max pkt to target limit exceeded\n");
		return(ERROR_USAGE);
	}
	/* fill out the packet */
	sendpkt[0] = RVT_L23_HEADER;
	sendpkt[1] = 0xB7;	/* system prim */
	sendpkt[2] = intlen;
	sendpkt[3] = intlen >> 8;
	/* send zeros for the timestamp */
	sendpkt[4] = 0;
	sendpkt[5] = 0;
	sendpkt[6] = 0;
	sendpkt[7] = 0;
	/* as far as TI's sw is concerned, we are PCO */
	sendpkt[8] = 'P';
	sendpkt[9] = 'C';
	sendpkt[10] = 'O';
	sendpkt[11] = ' ';
	sprintf(sendpkt + 12, "%-4s%s", stackdest, primstr);
	/* send it! */
	send_pkt_to_target(sendpkt, pktlen);
	return(0);
}

void
cmd_sp_interactive(args)
	char *args;
{
	char *cp, *np;

	for (cp = args; isspace(*cp); cp++)
		;
	if (!*cp) {
err:		printf("error: two arguments required\n");
		return;
	}
	for (np = cp; *cp && !isspace(*cp); cp++)
		;
	if (!*cp)
		goto err;
	*cp++ = '\0';
	while (isspace(*cp))
		cp++;
	if (!*cp)
		goto err;
	gpf_rx_control(1);
	send_gpf_sysprim(np, cp);
}

cmd_sp_oneshot(argc, argv)
	char **argv;
{
	return send_gpf_sysprim(argv[1], argv[2]);
}