view miscutil/fc-serterm.c @ 965:2969032bdfac

fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing The only 100% safe way to pass a NULL pointer as a function argument in K&R C is to cast 0 to a pointer type; failing to do so may cause mysterious bugs (invalid stack frames or garbage in argument registers) on 64-bit machines. This issue has already been fixed in most of FC host tools, but I just found some missed spots: passing of NULL UDH to PDU encoding functions in fcup-smsend[mult] in the case of single (not concatenated) SMS.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 01 Sep 2023 07:33:51 +0000
parents fb577c31e960
children
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/*
 * This hack-utility opens a serial port at the user-specified baud rate
 * and drops into a terminal pass-thru mode, except that any binary bytes
 * received on this port are turned into cat -v form.  The intent is for
 * sniffing on and/or talking to targets that emit some ASCII mixed in
 * with binary.
 */

#include <stdio.h>
#include <stdlib.h>

main(argc, argv)
	char **argv;
{
	if (argc != 3) {
		fprintf(stderr, "usage: %s ttyname baudrate\n", argv[0]);
		exit(1);
	}
	open_serial_port(argv[1]);
	set_fixed_baudrate(argv[2]);
	tty_passthru();
	exit(0);
}