do_chmod(argc, argv)
	int argc;
	char *argv[];
{

	if (argc < 2 && !another(&argc, &argv, "mode"))
		goto usage;
	if ((argc < 3 && !another(&argc, &argv, "file-name")) || argc > 3) {
usage:
		printf("usage: %s mode file-name\n", argv[0]);
		code = -1;
		return;
	}
	(void)command("SITE CHMOD %s %s", argv[1], argv[2]);
}

void
do_umask(argc, argv)
	int argc;
	char *argv[];
{
	int oldverbose = verbose;

	verbose = 1;
	(void)command(argc == 1 ? "SITE UMASK" : "SITE UMASK %s", argv[1]);
	verbose = oldverbose;
}

void
idle(argc, argv)
	int argc;
	char *argv[];
{
	int oldverbose = verbose;

	verbose = 1;
	(void)command(argc == 1 ? "SITE IDLE" : "SITE IDLE %s", argv[1]);
	verbose = oldverbose;
}

/*
 * Ask the other side for help.
 */
void
rmthelp(argc, argv)
	int argc;
	char *argv[];
{
	int oldverbose = verbose;

	verbose = 1;
	(void)command(argc == 1 ? "HELP" : "HELP %s", argv[1]);
	verbose = oldverbose;
}

/*
 * Terminate session and exit.
 */
/*VARARGS*/
void
quit(argc, argv)
	int argc;
	char *argv[];
{

	if (connected)
		disconnect(0, 0);
	pswitch(1);
	if (connected) {
		disconnect(0, 0);
	}
	exit(0);
}

/*
 * Terminate session, but don't exit.
 */
void
disconnect(argc, argv)
	int argc;
	char *argv[];
{

	if (!connected)
		return;
	(void)command("QUIT");
	if (cout) {
		(void)fclose(cout);
	}
	cout = NULL;
	connected = 0;
	data = -1;
	if (!proxy) {
		macnum = 0;
	}
}

void
account(argc, argv)
	int argc;
	char *argv[];
{
	char *ap;

	if (argc > 2) {
		printf("usage: %s [password]\n", argv[0]);
		code = -1;
		return;
	}
	else if (argc == 2)
		ap = argv[1];
	else
		ap = getpass("Account:");
	(void)command("ACCT %s", ap);
}

jmp_buf abortprox;

void
proxabort(notused)
	int notused;
{

	alarmtimer(0);
	if (!proxy) {
		pswitch(1);
	}
	if (connected) {
		proxflag = 1;
	}
	else {
		proxflag = 0;
	}
	pswitch(0);
	longjmp(abortprox, 1);
}

void
doproxy(argc, argv)
	int argc;
	char *argv[];
{
	struct cmd *c;
	int cmdpos;
	sig_t oldintr;

	if (argc < 2 && !another(&argc, &argv, "command")) {
		printf("usage: %s command\n", argv[0]);
		code = -1;
		return;
	}
	c = getcmd(argv[1]);
	if (c == (struct cmd *) -1) {
		puts("?Ambiguous command.");
		(void)fflush(stdout);
		code = -1;
		return;
	}
	if (c == 0) {
		puts("?Invalid command.");
		(void)fflush(stdout);
		code = -1;
		return;
	}
	if (!c->c_proxy) {
		puts("?Invalid proxy command.");
		(void)fflush(stdout);
		code = -1;
		return;
	}
	if (setjmp(abortprox)) {
		code = -1;
		return;
	}
	oldintr = signal(SIGINT, proxabort);
	pswitch(1);
	if (c->c_conn && !connected) {
		puts("Not connected.");
		(void)fflush(stdout);
		pswitch(0);
		(void)signal(SIGINT, oldintr);
		code = -1;
		return;
	}
	cmdpos = (int)strcspn(line, " \t");
	if (cmdpos > 0)		/* remove leading "proxy " from input buffer */
		memmove(line, line + cmdpos + 1, strlen(line) - cmdpos + 1);
	(*c->c_handler)(argc-1, argv+1);
	if (connected) {
		proxflag = 1;
	}
	else {
		proxflag = 0;
	}
	pswitch(0);
	(void)signal(SIGINT, oldintr);
}

void
setcase(argc, argv)
	int argc;
	char *argv[];
{

	code = togglevar(argc, argv, &mcase, "Case mapping");
}

void
setcr(argc, argv)
	int argc;
	char *argv[];
{

	code = togglevar(argc, argv, &crflag, "Carriage Return stripping");
}

void
setntrans(argc, argv)
	int argc;
	char *argv[];
{
	if (argc == 1) {
		ntflag = 0;
		puts("Ntrans off.");
		code = ntflag;
		return;
	}
	ntflag++;
	code = ntflag;
	(void)strncpy(ntin, argv[1], sizeof(ntin) - 1);
	ntin[sizeof(ntin) - 1] = '\0';
	if (argc == 2) {
		ntout[0] = '\0';
		return;
	}
	(void)strncpy(ntout, argv[2], sizeof(ntout) - 1);
	ntout[sizeof(ntout) - 1] = '\0';
}

char *
dotrans(name)
	char *name;
{
	static char new[MAXPATHLEN];
	char *cp1, *cp2 = new;
	int i, ostop, found;

	for (ostop = 0; *(ntout + ostop) && ostop < 16; ostop++)
		continue;
	for (cp1 = name; *cp1; cp1++) {
		found = 0;
		for (i = 0; *(ntin + i) && i < 16; i++) {
			if (*cp1 == *(ntin + i)) {
				found++;
				if (i < ostop) {
					*cp2++ = *(ntout + i);
				}
				break;
			}
		}
		if (!found) {
			*cp2++ = *cp1;
		}
	}
	*cp2 = '\0';
	return (new);
}

void
setnmap(argc, argv)
	int argc;
	char *argv[];
{
	char *cp;

	if (argc == 1) {
		mapflag = 0;
		puts("Nmap off.");
		code = mapflag;
		return;
	}
	if ((argc < 3 && !another(&argc, &argv, "mapout")) || argc > 3) {
		printf("usage: %s [mapin mapout]\n", argv[0]);
		code = -1;
		return;
	}
	mapflag = 1;
	code = 1;
	cp = strchr(altarg, ' ');
	if (proxy) {
		while(*++cp == ' ')
			continue;
		altarg = cp;
		cp = strchr(altarg, ' ');
	}
	*cp = '\0';
	(void)strncpy(mapin, altarg, MAXPATHLEN - 1);
	while (*++cp == ' ')
		continue;
	(void)strncpy(mapout, cp, MAXPATHLEN - 1);
}

char *
domap(name)
	char *name;
{
	static char new[MAXPATHLEN];
	char *cp1 = name, *cp2 = mapin;
	char *tp[9], *te[9];
	int i, toks[9], toknum = 0, match = 1;

	for (i=0; i < 9; ++i) {
		toks[i] = 0;
	}
	while (match && *cp1 && *cp2) {
		switch (*cp2) {
			case '\\':
				if (*++cp2 != *cp1) {
					match = 0;
				}
				break;
			case '$':
				if (*(cp2+1) >= '1' && (*cp2+1) <= '9') {
					if (*cp1 != *(++cp2+1)) {
						toks[toknum = *cp2 - '1']++;
						tp[toknum] = cp1;
						while (*++cp1 && *(cp2+1)
							!= *cp1);
						te[toknum] = cp1;
					}
					cp2++;
					break;
				}
				/* FALLTHROUGH */
			default:
				if (*cp2 != *cp1) {
					match = 0;
				}
				break;
		}
		if (match && *cp1) {
			cp1++;
		}
		if (match && *cp2) {
			cp2++;
		}
	}
	if (!match && *cp1) /* last token mismatch */
	{
		toks[toknum] = 0;
	}
	cp1 = new;
	*cp1 = '\0';
	cp2 = mapout;
	while (*cp2) {
		match = 0;
		switch (*cp2) {
			case '\\':
				if (*(cp2 + 1)) {
					*cp1++ = *++cp2;
				}
				break;
			case '[':
LOOP:
				if (*++cp2 == '$' &&
				    isdigit((unsigned char)*(cp2+1))) {
					if (*++cp2 == '0') {
						char *cp3 = name;

						while (*cp3) {
							*cp1++ = *cp3++;
						}
						match = 1;
					}
					else if (toks[toknum = *cp2 - '1']) {
						char *cp3 = tp[toknum];

						while (cp3 != te[toknum]) {
							*cp1++ = *cp3++;
						}
						match = 1;
					}
				}
				else {
					while (*cp2 && *cp2 != ',' &&
					    *cp2 != ']') {
						if (*cp2 == '\\') {
							cp2++;
						}
						else if (*cp2 == '$' &&
   						        isdigit((unsigned char)*(cp2+1))) {
							if (*++cp2 == '0') {
							   char *cp3 = name;

							   while (*cp3) {
								*cp1++ = *cp3++;
							   }
							}
							else if (toks[toknum =
							    *cp2 - '1']) {
							   char *cp3=tp[toknum];

							   while (cp3 !=
								  te[toknum]) {
								*cp1++ = *cp3++;
							   }
							}
						}
						else if (*cp2) {
							*cp1++ = *cp2++;
						}
					}
					if (!*cp2) {
						puts(
"nmap: unbalanced brackets.");
						return (name);
					}
					match = 1;
					cp2--;
				}
				if (match) {
					while (*++cp2 && *cp2 != ']') {
					      if (*cp2 == '\\' && *(cp2 + 1)) {
							cp2++;
					      }
					}
					if (!*cp2) {
						puts(
"nmap: unbalanced brackets.");
						return (name);
					}
					break;
				}
				switch (*++cp2) {
					case ',':
						goto LOOP;
					case ']':
						break;
					default:
						cp2--;
						goto LOOP;
				}
				break;
			case '$':
				if (isdigit((unsigned char)*(cp2 + 1))) {
					if (*++cp2 == '0') {
						char *cp3 = name;

						while (*cp3) {
							*cp1++ = *cp3++;
						}
					}
					else if (toks[toknum = *cp2 - '1']) {
						char *cp3 = tp[toknum];

						while (cp3 != te[toknum]) {
							*cp1++ = *cp3++;
						}
					}
					break;
				}
				/* intentional drop through */
			default:
				*cp1++ = *cp2;
				break;
		}
		cp2++;
	}
	*cp1 = '\0';
	if (!*new) {
		return (name);
	}
	return (new);
}

void
setpassive(argc, argv)
	int argc;
	char *argv[];
{

	code = togglevar(argc, argv, &passivemode,
	    verbose ? "Passive mode" : NULL);
}

void
setsunique(argc, argv)
	int argc;
	char *argv[];
{

	code = togglevar(argc, argv, &sunique, "Store unique");
}

void
setrunique(argc, argv)
	int argc;
	char *argv[];
{

	code = togglevar(argc, argv, &runique, "Receive unique");
}

/* change directory to parent directory */
void
cdup(argc, argv)
	int argc;
	char *argv[];
{
	int r;

	r = command("CDUP");
	if (r == ERROR && code == 500) {
		if (verbose)
			puts("CDUP command not recognized, trying XCUP.");
		r = command("XCUP");
	}
	if (r == COMPLETE)
		dirchange = 1;
}

/*
 * Restart transfer at specific point
 */
void
restart(argc, argv)
	int argc;
	char *argv[];
{

	if (argc > 2) {
		printf("usage: %s [restart_point]\n", argv[0]);
		code = -1;
		return;
	}
	if (argc == 2) {
		quad_t	rp;
		char *ep;

		rp = strtoq(argv[1], &ep, 10);
		if (rp < 0 || *ep != '\0')
			printf("restart: Invalid offset `%s'\n", argv[1]);
		else
			restart_point = rp;
	}
	if (restart_point == 0)
		puts("No restart point defined");
	else
		printf("Restarting at %d for next get, put or append\n",
		    (unsigned int)restart_point);		/* replaced long long for EFI port */
}

/* 
 * Show remote system type
 */
void
syst(argc, argv)
	int argc;
	char *argv[];
{

	(void)command("SYST");
}

void
macdef(argc, argv)
	int argc;
	char *argv[];
{
	char *tmp;
	int c;

	if (macnum == 16) {
		puts("Limit of 16 macros have already been defined.");
		code = -1;
		return;
	}
	if ((argc < 2 && !another(&argc, &argv, "macro name")) || argc > 2) {
		printf("usage: %s macro_name\n", argv[0]);
		code = -1;
		return;
	}
	if (interactive)
		puts(
"Enter macro line by line, terminating it with a null line.");
	(void)strncpy(macros[macnum].mac_name, argv[1],
	    sizeof(macros[macnum].mac_name) - 1);
	macros[macnum].mac_name[sizeof(macros[macnum].mac_name) - 1] = '\0';
	if (macnum == 0)
		macros[macnum].mac_start = macbuf;
	else
		macros[macnum].mac_start = macros[macnum - 1].mac_end + 1;
	tmp = macros[macnum].mac_start;
	while (tmp != macbuf+4096) {
		if ((c = getchar()) == EOF) {
			puts("macdef: end of file encountered.");
			code = -1;
			return;
		}
		if ((*tmp = c) == '\n') {
			if (tmp == macros[macnum].mac_start) {
				macros[macnum++].mac_end = tmp;
				code = 0;
				return;
			}
			if (*(tmp-1) == '\0') {
				macros[macnum++].mac_end = tmp - 1;
				code = 0;
				return;
			}
			*tmp = '\0';
		}
		tmp++;
	}
	while (1) {
		while ((c = getchar()) != '\n' && c != EOF)
			/* LOOP */;
		if (c == EOF || getchar() == '\n') {
			puts("Macro not defined - 4K buffer exceeded.");
			code = -1;
			return;
		}
	}
}

/*
 * Restrict FTP data port range to a high group of "safe" ports
 */
void
setrestrict(argc, argv)
        int argc;
        char *argv[];
{
	code = togglevar(argc, argv, &restricted_data_ports,
			 verbose ? "Restricted data ports" : NULL);
}

/*
 * Get size of file on remote machine
 */
void
sizecmd(argc, argv)
	int argc;
	char *argv[];
{
	off_t size;

	if ((argc < 2 && !another(&argc, &argv, "filename")) || argc > 2) {
		printf("usage: %s filename\n", argv[0]);
		code = -1;
		return;
	}
	size = remotesize(argv[1], 1);
	if (size != -1)
		printf("%s\t%d\n", argv[1], (unsigned int)size);		 /* replaced long long for EFI port */
	code = (int) size;	/* cast added for EFI port */
}

/*
 * Get last modification time of file on remote machine
 */
void
modtime(argc, argv)
	int argc;
	char *argv[];
{
	time_t mtime;

	if ((argc < 2 && !another(&argc, &argv, "filename")) || argc > 2) {
		printf("usage: %s filename\n", argv[0]);
		code = -1;
		return;
	}
	mtime = remotemodtime(argv[1], 1);
	if (mtime != -1)
		printf("%s\t%s", argv[1], asctime(localtime(&mtime)));
	code = mtime;
}

/*
 * Show status on remote machine
 */
void
rmtstatus(argc, argv)
	int argc;
	char *argv[];
{

	(void)command(argc > 1 ? "STAT %s" : "STAT" , argv[1]);
}

/*
 * Get file if modtime is more recent than current file
 */
void
newer(argc, argv)
	int argc;
	char *argv[];
{

	if (getit(argc, argv, -1, "w"))
		printf("Local file \"%s\" is newer than remote file \"%s\".\n",
			argv[2], argv[1]);
}

/*
 * Display one file through $PAGER (defaults to "more").
 */
void
page(argc, argv)
	int argc;
	char *argv[];
{
	int ohash, overbose;
	char *p, *pager, *oldargv1;

	if ((argc < 2 && !another(&argc, &argv, "filename")) || argc > 2) {
		printf("usage: %s filename\n", argv[0]);
		code = -1;
		return;
	}
	oldargv1 = argv[1];
	if (!globulize(&argv[1])) {
		code = -1;
		return;
	}
	p = getenv("PAGER");
	if (p == NULL)
		p = PAGER;
	if ((pager = malloc(strlen(p) + 2)) == NULL)
		errx(1, "Can't allocate memory for $PAGER");
	(void)sprintf(pager, "|%s", p);

	ohash = hash;
	overbose = verbose;
	hash = verbose = 0;
	recvrequest("RETR", pager, argv[1], "r+w", 1, 0);
	(void)free(pager);
	hash = ohash;
	verbose = overbose;
	if (oldargv1 != argv[1])	/* free up after globulize() */
		free(argv[1]);
}