#include <stdio.h>#include <stdlib.h>#include <string.h>#include <fcntl.h>#include <unistd.h>#include <sys/types.h>#include <sys/stat.h>#include "serial.h"#include "error.h"#include "remote.h"char *serialdev = "/dev/term/b";speed_t speed = B230400;int verbose = 0, docont = 0;unsigned long addr = 0x10000UL;intmain(int ac, char **av){    int c, sfd, ifd;    char *ifn, *image;    struct stat ist;    if ((pname = strrchr(av[0], '/')) == NULL)	pname = av[0];    else	pname++;    while ((c = getopt(ac, av, "a:b:cp:v")) != EOF)	switch (c) {	case 'a': {	    char *ep;	    addr = strtol(optarg, &ep, 0);	    if (ep == optarg || *ep != '\0')		Error("can't decode address specified in -a option");	    break;	}	case 'b':	    if ((speed = cvtspeed(optarg)) == B0)		Error("can't decode baud rate specified in -b option");	    break;	case 'c':	    docont = 1;	    break;	case 'p':	    serialdev = optarg;	    break;	case 'v':	    verbose = 1;	    break;	default:	usage:	    fprintf(stderr,		"Usage: %s [-a addr] [-b bps] [-c] [-p dev] [-v] imagefile\n",		pname);	    exit(1);	}    if (optind != ac - 1)	goto usage;    ifn = av[optind++];    if (verbose)	fprintf(stderr, "Opening file and reading image...\n");    if ((ifd = open(ifn, O_RDONLY)) < 0)	Perror("can't open kernel image file '%s'", ifn);    if (fstat(ifd, &ist) < 0)	Perror("fstat '%s' failed", ifn);    if ((image = (char *)malloc(ist.st_size)) == NULL)	Perror("can't allocate %ld bytes for image", ist.st_size);    if ((c = read(ifd, image, ist.st_size)) < 0)	Perror("read of %d bytes from '%s' failed", ist.st_size, ifn);    if (c != ist.st_size)	Error("read of %ld bytes from '%s' failed (%d)", ist.st_size, ifn, c);    if (close(ifd) < 0)	Perror("close of '%s' failed", ifn);    if (verbose)	fprintf(stderr, "Opening serial port and sending image...\n");    if ((sfd = serialopen(serialdev, speed)) < 0)	Perror("open of serial device '%s' failed", serialdev);    remote_desc = sfd;    remote_reset();    remote_write_bytes(addr, image, ist.st_size);    if (docont) {	if (verbose)	    fprintf(stderr, "[continue]");	remote_continue();    }    if (serialclose(sfd) < 0)	Perror("close of serial device '%s' failed", serialdev);    if (verbose)	fprintf(stderr, "Done.\n");    return (0);}