view rvinterf/lowlevel/format_fc.c @ 921:74d284add54d

fc-fsio: guard against bogus readdir results from the target If the FFS being operated on contains SE K2x0 extended filenames, readdir will return strings that are bad for printing. We need to guard against this possibility, and also against possible other bogosity that could be sent by other alien firmwares.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 31 Dec 2022 22:55:23 +0000
parents e7502631a0f9
children 4e243402f453
line wrap: on
line source

/*
 * This module has been split off from format.c; it implements the decoding
 * of those Rx packet types which have been invented in FreeCalypso.
 */

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

extern u_char rxpkt[];
extern size_t rxpkt_len;

static char fmtbuf[MAX_PKT_FROM_TARGET*8];	/* size it generously */

void
print_ati_output()
{
	int i, c;
	char *dp;

	dp = fmtbuf;
	strcpy(dp, "ATI: ");
	dp += 5;
	for (i = 1; i < rxpkt_len; i++) {
		c = rxpkt[i];
		if (c & 0x80) {
			*dp++ = 'M';
			*dp++ = '-';
			c &= 0x7F;
		}
		if (c < 0x20) {
			*dp++ = '^';
			*dp++ = c + '@';
		} else if (c == 0x7F) {
			*dp++ = '^';
			*dp++ = '?';
		} else
			*dp++ = c;
	}
	*dp = '\0';
	output_line(fmtbuf);
}

void
print_fc_lld_msg()
{
	int i, c;
	char *dp;

	dp = fmtbuf;
	strcpy(dp, "LLD: ");
	dp += 5;
	for (i = 1; i < rxpkt_len; i++) {
		c = rxpkt[i];
		if (c & 0x80) {
			*dp++ = 'M';
			*dp++ = '-';
			c &= 0x7F;
		}
		if (c < 0x20) {
			*dp++ = '^';
			*dp++ = c + '@';
		} else if (c == 0x7F) {
			*dp++ = '^';
			*dp++ = '?';
		} else
			*dp++ = c;
	}
	*dp = '\0';
	output_line(fmtbuf);
}

void
print_tch_output_raw()
{
	int i;
	char *dp;

	dp = fmtbuf;
	strcpy(dp, "TCH:");
	dp += 4;
	for (i = 1; i < rxpkt_len; i++) {
		sprintf(dp, " %02X", rxpkt[i]);
		dp += 3;
	}
	*dp = '\0';
	output_line(fmtbuf);
}

void
report_extui_packet()
{
	sprintf(fmtbuf, "LCD OUT: row %u col %u-%u", rxpkt[1], rxpkt[2],
		rxpkt[2] + (rxpkt_len - 3) / 2 - 1);
	output_line(fmtbuf);
}