#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>      /* for mode_t */

void usage() 
{

	printf("\n");
	printf("    check out \"man rpc.statd\":\n");
	printf("    This callout program should receive callouts for\n");
	printf("    NLM  client  monitor and unmonitor requests. It is\n");
	printf("    run with 3 arguments: \n"); 
	printf("    1st: either add-client or del-client\n");
	printf("    2nd: the name of the client\n");
	printf("    3rd: the name of the server as known to the client.\n");

	return;
}

int main (int argc, char* argv[]) 
{
        char* file = "/tmp/NLM/from-ha";
        mode_t rw_mode;
        int rc, debug=0, i;
	FILE *fd;
        struct flock lock;

        /* Open a file descriptor to the file.  */
        rw_mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;     /* 0644 */
        fd = fopen(file, "a+");

	fprintf(fd, "%s is invoked with %d arguments.\n", argv[0], argc - 1); 
	if (argc != 4) {
		fprintf (fd, "    error: invalid arguments\n");
		debug = 1;
	}

	for (i = 1; i < argc; ++i) 
		fprintf (fd, "    %s\n", argv[i]); 

	fclose(fd);

	return 0; 
}