view ffstools/caltools/fc-cal2bin.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 5bcf12be0834
children
line wrap: on
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/*
 * This utility converts an RF table from ASCII to binary format.
 */

#include <sys/types.h>
#include <sys/file.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

main(argc, argv)
	char **argv;
{
	u_char buf[512];
	unsigned size;
	int ofd;

	if (argc != 3) {
		fprintf(stderr,
			"usage: %s ascii-input-file binary-output-file\n",
			argv[0]);
		exit(1);
	}
	if (read_rf_table_ext(argv[1], buf, 1, (char **) 0, &size))
		exit(1);
	ofd = open(argv[2], O_WRONLY|O_CREAT|O_TRUNC, 0666);
	if (ofd < 0) {
		perror(argv[2]);
		exit(1);
	}
	write(ofd, buf, size);
	close(ofd);
	exit(0);
}