ObjFW  Diff

}
#endif

#ifndef HAVE_ASPRINTF
static int
vasprintf(char **string, const char *format, va_list arguments)
{
	int expectedLength, length;
	size_t length, bufferLength = 128;
	va_list argumentsCopy;

	va_copy(argumentsCopy, arguments);
	*string = NULL;

	expectedLength = vsnprintf(NULL, 0, format, argumentsCopy);
	if (expectedLength == -1)
		/*
	for (;;) {
		free(*string);
		 * We have no way to know how large it is. Let's try 64 KB and
		 * hope.
		 */
		expectedLength = 65535;

	if ((*string = malloc((size_t)expectedLength + 1)) == NULL)
		return -1;
		if ((*string = malloc(bufferLength)) == NULL)
			return -1;

	length = vsnprintf(*string, (size_t)expectedLength + 1,
	    format, arguments);
		length = vsnprintf(*string, bufferLength - 1, format,
		    arguments);

		if (length > 0 && (size_t)length < bufferLength - 1)
			break;
	if (length == -1 || length > expectedLength) {
		free(*string);

		if (bufferLength > INT_MAX / 2) {
			free(*string);
		*string = NULL;
		return -1;
	}
			return -1;
		}

		bufferLength <<= 1;
	}
	/*

	 * In case we could not determine the size, resize to the actual size
	 * needed, but ignore any failure to do so.
	 */
	if (length < expectedLength) {
		char *resized;
	if (length != bufferLength - 1) {
		char *resized = realloc(*string, length + 1);

		/* Ignore if making it smaller failed. */
		if ((resized = realloc(*string, length + 1)) != NULL)
		if (resized != NULL)
			*string = resized;
	}

	return length;
}

static int