Function parse_int

dpdk/app/test-pmd/cmdline_flow.c:10769–10844

* Parse signed/unsigned integers 8 to 64-bit long. * * Last argument (ctx->args) is retrieved to determine integer type and * storage location. */

 * storage location.
 */
static int
parse_int(struct context *ctx, const struct token *token,
	  const char *str, unsigned int len,
	  void *buf, unsigned int size)
{
	const struct arg *arg = pop_args(ctx);
	uintmax_t u;
	char *end;

	(void)token;
	/* Argument is expected. */
	if (!arg)
		return -1;
	errno = 0;
	u = arg->sign ?
		(uintmax_t)strtoimax(str, &end, 0) :
		strtoumax(str, &end, 0);
	if (errno || (size_t)(end - str) != len)
		goto error;
	if (arg->bounded &&
	    ((arg->sign && ((intmax_t)u < (intmax_t)arg->min ||
			    (intmax_t)u > (intmax_t)arg->max)) ||
	     (!arg->sign && (u < arg->min || u > arg->max))))
		goto error;
	if (!ctx->object)
		return len;
	if (arg->mask) {
		if (!arg_entry_bf_fill(ctx->object, u, arg) ||
		    !arg_entry_bf_fill(ctx->objmask, -1, arg))
			goto error;
		return len;
	}
	buf = (uint8_t *)ctx->object + arg->offset;
	size = arg->size;
	if (u > RTE_LEN2MASK(size * CHAR_BIT, uint64_t))
		return -1;
objmask:
	switch (size) {
	case sizeof(uint8_t):
		*(uint8_t *)buf = u;
		break;
	case sizeof(uint16_t):
		*(uint16_t *)buf = arg->hton ? rte_cpu_to_be_16(u) : u;
		break;
	case sizeof(uint8_t [3]):
#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
		if (!arg->hton) {
			((uint8_t *)buf)[0] = u;
			((uint8_t *)buf)[1] = u >> 8;
			((uint8_t *)buf)[2] = u >> 16;
			break;
		}
#endif
		((uint8_t *)buf)[0] = u >> 16;
		((uint8_t *)buf)[1] = u >> 8;
		((uint8_t *)buf)[2] = u;
		break;
	case sizeof(uint32_t):