view loadtools/compalram.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 8c011177adb9
children
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/*
 * This module contains the main() function for fc-compalram, a trivial
 * utility that feeds a binary download image to Compal's bootloader
 * and then switches into serial tty pass-through.
 */

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

char *target_ttydev;

main(argc, argv)
	char **argv;
{
	if (argc != 3) {
		fprintf(stderr, "usage: fc-compalram ttyport image.bin\n");
		exit(1);
	}
	target_ttydev = argv[1];
	set_compalstage_fullpath(argv[2]);

	open_serial_port(target_ttydev);
	perform_compal_stage();
	tty_passthru();
	exit(0);
}