+
−/*
+
− * This hack-utility sends a GPF System Primitive given on the command line
+
− * to a target GSM device via rvinterf.
+
− */
+
−
+
−#include <sys/types.h>
+
−#include <stdio.h>
+
−#include <string.h>
+
−#include <strings.h>
+
−#include <stdlib.h>
+
−#include "pktmux.h"
+
−#include "limits.h"
+
−
+
−char *socket_pathname = "/tmp/rvinterf_socket";
+
−
+
−main(argc, argv)
+
−	char **argv;
+
−{
+
−	char *stackdest, *primarg;
+
−	unsigned intlen;
+
−	u_char sendpkt[MAX_PKT_TO_TARGET];
+
−	unsigned pktlen;
+
−
+
−	if (argc < 3) {
+
−usage:		fprintf(stderr, "usage: %s [-s socket] stackdest primarg\n",
+
−			argv[0]);
+
−		exit(1);
+
−	}
+
−	if (strcmp(argv[1], "-s")) {
+
−		if (argc != 3)
+
−			goto usage;
+
−		stackdest = argv[1];
+
−		primarg = argv[2];
+
−	} else {
+
−		if (argc != 5)
+
−			goto usage;
+
−		socket_pathname = argv[2];
+
−		stackdest = argv[3];
+
−		primarg = argv[4];
+
−	}
+
−	if (strlen(stackdest) > 4) {
+
−		fprintf(stderr,
+
−		"error: stack destination arg may not exceed 4 characters\n");
+
−		exit(1);
+
−	}
+
−	intlen = 12 + strlen(primarg) + 1;
+
−	pktlen = intlen + 4;
+
−	if (pktlen > MAX_PKT_TO_TARGET) {
+
−		fprintf(stderr, "error: max pkt to target limit exceeded\n");
+
−		exit(1);
+
−	}
+
−	/* 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, primarg);
+
−	/* send it! */
+
−	send_pkt_to_target(sendpkt, pktlen);
+
−	exit(0);
+
−}