Function _substrcmp2

tools/ipfw/ipfw2.c:853–864

* _substrcmp2 takes three strings and returns 1 if the first two do not match, * and 0 if they match exactly or the second string is a sub-string * of the first. A warning is printed to stderr in the case that the * first string does not match the third. * * This function exists to warn about the bizarre construction * strncmp(str, "by", 2) which is used to allow people to use a shortcut *

 * deprecation process.
 */
int
_substrcmp2(const char *str1, const char* str2, const char* str3)
{

	if (strncmp(str1, str2, strlen(str2)) != 0)
		return 1;

	if (strcmp(str1, str3) != 0)
		warnx("DEPRECATED: '%s' matched '%s'",
		    str1, str3);
	return 0;
}

/*
 * prints one port, symbolic or numeric