mirror of
https://github.com/openvswitch/ovs
synced 2025-10-19 14:37:21 +00:00
ed2232fc77
This new function is essentially an implementation of sscanf() with slightly different behavior (see the comment) that is more convenient for Open vSwitch internal use. Also, this implementation ought to work out of the box on Windows, which has a defective sscanf() that lacks the 'hh' modifier required to scan into a char variable. Signed-off-by: Ben Pfaff <blp@nicira.com>
997 lines
30 KiB
C
997 lines
30 KiB
C
/*
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* Copyright (c) 2011, 2012, 2013 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <config.h>
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#include <getopt.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "byte-order.h"
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#include "command-line.h"
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#include "random.h"
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#include "util.h"
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#include "vlog.h"
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#undef NDEBUG
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#include <assert.h>
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static void
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check_log_2_floor(uint32_t x, int n)
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{
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if (log_2_floor(x) != n) {
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fprintf(stderr, "log_2_floor(%"PRIu32") is %d but should be %d\n",
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x, log_2_floor(x), n);
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abort();
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}
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}
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static void
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test_log_2_floor(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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int n;
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for (n = 0; n < 32; n++) {
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/* Check minimum x such that f(x) == n. */
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check_log_2_floor(1 << n, n);
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/* Check maximum x such that f(x) == n. */
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check_log_2_floor((1 << n) | ((1 << n) - 1), n);
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/* Check a random value in the middle. */
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check_log_2_floor((random_uint32() & ((1 << n) - 1)) | (1 << n), n);
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}
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/* log_2_floor(0) is undefined, so don't check it. */
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}
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static void
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check_ctz(uint32_t x, int n)
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{
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if (ctz(x) != n) {
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fprintf(stderr, "ctz(%"PRIu32") is %d but should be %d\n",
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x, ctz(x), n);
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abort();
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}
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}
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static void
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test_ctz(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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int n;
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for (n = 0; n < 32; n++) {
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/* Check minimum x such that f(x) == n. */
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check_ctz(1 << n, n);
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/* Check maximum x such that f(x) == n. */
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check_ctz(UINT32_MAX << n, n);
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/* Check a random value in the middle. */
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check_ctz((random_uint32() | 1) << n, n);
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}
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/* Check ctz(0). */
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check_ctz(0, 32);
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}
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/* Returns a random number in the range 'min'...'max' inclusive. */
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static uint32_t
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random_in_range(uint32_t min, uint32_t max)
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{
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return min == max ? min : min + random_range(max - min + 1);
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}
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static void
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check_rup2(uint32_t x, int n)
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{
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uint32_t rup2 = ROUND_UP_POW2(x);
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if (rup2 != n) {
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fprintf(stderr, "ROUND_UP_POW2(%#"PRIx32") is %#"PRIx32" "
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"but should be %#"PRIx32"\n", x, rup2, n);
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abort();
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}
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}
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static void
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test_round_up_pow2(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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int n;
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for (n = 0; n < 32; n++) {
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/* Min, max value for which ROUND_UP_POW2 should yield (1 << n). */
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uint32_t min = ((1u << n) >> 1) + 1;
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uint32_t max = 1u << n;
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check_rup2(min, 1u << n);
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check_rup2(max, 1u << n);
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check_rup2(random_in_range(min, max), 1u << n);
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}
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check_rup2(0, 0);
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}
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static void
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check_rdp2(uint32_t x, int n)
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{
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uint32_t rdp2 = ROUND_DOWN_POW2(x);
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if (rdp2 != n) {
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fprintf(stderr, "ROUND_DOWN_POW2(%#"PRIx32") is %#"PRIx32" "
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"but should be %#"PRIx32"\n", x, rdp2, n);
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abort();
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}
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}
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static void
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test_round_down_pow2(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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int n;
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for (n = 0; n < 32; n++) {
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/* Min, max value for which ROUND_DOWN_POW2 should yield (1 << n). */
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uint32_t min = 1u << n;
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uint32_t max = ((1u << n) << 1) - 1;
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check_rdp2(min, 1u << n);
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check_rdp2(max, 1u << n);
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check_rdp2(random_in_range(min, max), 1u << n);
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}
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check_rdp2(0, 0);
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}
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static void
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shuffle(unsigned int *p, size_t n)
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{
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for (; n > 1; n--, p++) {
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unsigned int *q = &p[random_range(n)];
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unsigned int tmp = *p;
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*p = *q;
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*q = tmp;
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}
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}
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static void
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check_popcount(uint32_t x, int n)
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{
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if (popcount(x) != n) {
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fprintf(stderr, "popcount(%#"PRIx32") is %d but should be %d\n",
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x, popcount(x), n);
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abort();
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}
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}
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static void
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test_popcount(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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unsigned int bits[32];
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int i;
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for (i = 0; i < ARRAY_SIZE(bits); i++) {
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bits[i] = 1u << i;
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}
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check_popcount(0, 0);
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for (i = 0; i < 1000; i++) {
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uint32_t x = 0;
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int j;
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shuffle(bits, ARRAY_SIZE(bits));
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for (j = 0; j < 32; j++) {
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x |= bits[j];
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check_popcount(x, j + 1);
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}
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assert(x == UINT32_MAX);
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shuffle(bits, ARRAY_SIZE(bits));
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for (j = 31; j >= 0; j--) {
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x &= ~bits[j];
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check_popcount(x, j);
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}
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assert(x == 0);
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}
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}
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/* Returns the sum of the squares of the first 'n' positive integers. */
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static unsigned int
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sum_of_squares(int n)
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{
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return n * (n + 1) * (2 * n + 1) / 6;
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}
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static void
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test_bitwise_copy(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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unsigned int n_loops;
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int src_ofs;
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int dst_ofs;
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int n_bits;
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n_loops = 0;
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for (n_bits = 0; n_bits <= 64; n_bits++) {
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for (src_ofs = 0; src_ofs < 64 - n_bits; src_ofs++) {
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for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
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ovs_be64 src = htonll(random_uint64());
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ovs_be64 dst = htonll(random_uint64());
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ovs_be64 orig_dst = dst;
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ovs_be64 expect;
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if (n_bits == 64) {
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expect = dst;
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} else {
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uint64_t mask = (UINT64_C(1) << n_bits) - 1;
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expect = orig_dst & ~htonll(mask << dst_ofs);
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expect |= htonll(((ntohll(src) >> src_ofs) & mask)
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<< dst_ofs);
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}
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bitwise_copy(&src, sizeof src, src_ofs,
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&dst, sizeof dst, dst_ofs,
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n_bits);
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if (expect != dst) {
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fprintf(stderr,"copy_bits(0x%016"PRIx64",8,%d, "
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"0x%016"PRIx64",8,%d, %d) yielded 0x%016"PRIx64" "
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"instead of the expected 0x%016"PRIx64"\n",
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ntohll(src), src_ofs,
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ntohll(orig_dst), dst_ofs,
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n_bits,
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ntohll(dst), ntohll(expect));
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abort();
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}
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n_loops++;
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}
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}
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}
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if (n_loops != sum_of_squares(64)) {
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abort();
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}
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}
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static void
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test_bitwise_zero(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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unsigned int n_loops;
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int dst_ofs;
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int n_bits;
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n_loops = 0;
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for (n_bits = 0; n_bits <= 64; n_bits++) {
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for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
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ovs_be64 dst = htonll(random_uint64());
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ovs_be64 orig_dst = dst;
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ovs_be64 expect;
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if (n_bits == 64) {
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expect = htonll(0);
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} else {
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uint64_t mask = (UINT64_C(1) << n_bits) - 1;
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expect = orig_dst & ~htonll(mask << dst_ofs);
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}
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bitwise_zero(&dst, sizeof dst, dst_ofs, n_bits);
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if (expect != dst) {
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fprintf(stderr,"bitwise_zero(0x%016"PRIx64",8,%d, %d) "
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"yielded 0x%016"PRIx64" "
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"instead of the expected 0x%016"PRIx64"\n",
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ntohll(orig_dst), dst_ofs,
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n_bits,
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ntohll(dst), ntohll(expect));
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abort();
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}
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n_loops++;
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}
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}
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if (n_loops != 64 * (64 + 1) / 2) {
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abort();
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}
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}
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static void
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test_bitwise_one(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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unsigned int n_loops;
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int dst_ofs;
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int n_bits;
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n_loops = 0;
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for (n_bits = 0; n_bits <= 64; n_bits++) {
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for (dst_ofs = 0; dst_ofs < 64 - n_bits; dst_ofs++) {
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ovs_be64 dst = htonll(random_uint64());
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ovs_be64 orig_dst = dst;
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ovs_be64 expect;
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if (n_bits == 64) {
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expect = OVS_BE64_MAX;
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} else {
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uint64_t mask = (UINT64_C(1) << n_bits) - 1;
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expect = orig_dst | htonll(mask << dst_ofs);
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}
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bitwise_one(&dst, sizeof dst, dst_ofs, n_bits);
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if (expect != dst) {
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fprintf(stderr,"bitwise_one(0x%016"PRIx64",8,%d, %d) "
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"yielded 0x%016"PRIx64" "
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"instead of the expected 0x%016"PRIx64"\n",
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ntohll(orig_dst), dst_ofs,
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n_bits,
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ntohll(dst), ntohll(expect));
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abort();
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}
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n_loops++;
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}
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}
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if (n_loops != 64 * (64 + 1) / 2) {
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abort();
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}
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}
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static void
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test_bitwise_is_all_zeros(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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int n_loops;
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for (n_loops = 0; n_loops < 100; n_loops++) {
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ovs_be64 x = htonll(0);
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int i;
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for (i = 0; i < 64; i++) {
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ovs_be64 bit;
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int ofs, n;
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/* Change a random 0-bit into a 1-bit. */
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do {
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bit = htonll(UINT64_C(1) << (random_range(64)));
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} while (x & bit);
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x |= bit;
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for (ofs = 0; ofs < 64; ofs++) {
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for (n = 0; n <= 64 - ofs; n++) {
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bool expect;
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bool answer;
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expect = (n == 64
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? x == 0
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: !(x & htonll(((UINT64_C(1) << n) - 1)
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<< ofs)));
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answer = bitwise_is_all_zeros(&x, sizeof x, ofs, n);
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if (expect != answer) {
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fprintf(stderr,
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"bitwise_is_all_zeros(0x%016"PRIx64",8,%d,%d "
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"returned %s instead of %s\n",
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ntohll(x), ofs, n,
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answer ? "true" : "false",
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expect ? "true" : "false");
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abort();
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}
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}
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}
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}
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}
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}
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static void
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test_follow_symlinks(int argc, char *argv[])
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{
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int i;
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for (i = 1; i < argc; i++) {
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char *target = follow_symlinks(argv[i]);
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puts(target);
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free(target);
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}
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}
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static void
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test_assert(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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ovs_assert(false);
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}
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static void
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test_ovs_scan(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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char str[16], str2[16], str3[16];
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long double ld, ld2;
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long long ll, ll2;
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signed char c, c2;
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ptrdiff_t pd, pd2;
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intmax_t im, im2;
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size_t sz, sz2;
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int n, n2, n3;
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double d, d2;
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short s, s2;
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float f, f2;
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long l, l2;
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int i, i2;
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ovs_assert(ovs_scan("", ""));
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ovs_assert(ovs_scan("", " "));
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ovs_assert(ovs_scan(" ", " "));
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ovs_assert(ovs_scan(" ", " "));
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ovs_assert(ovs_scan(" \t ", " "));
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ovs_assert(ovs_scan("xyzzy", "xyzzy"));
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ovs_assert(ovs_scan("xy%zzy", "xy%%zzy"));
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ovs_assert(!ovs_scan(" xy%zzy", "xy%%zzy"));
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ovs_assert(ovs_scan(" xy%\tzzy", " xy%% zzy"));
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ovs_assert(ovs_scan("123", "%d", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan("0", "%d", &i));
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ovs_assert(i == 0);
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ovs_assert(!ovs_scan("123", "%d%d", &i, &i2));
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ovs_assert(ovs_scan("+123", "%d", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan("-123", "%d", &i));
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ovs_assert(i == -123);
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ovs_assert(ovs_scan("0123", "%d", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan(" 123", "%d", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan("0x123", "%d", &i));
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ovs_assert(i == 0);
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ovs_assert(ovs_scan("123", "%2d %d", &i, &i2));
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ovs_assert(i == 12);
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ovs_assert(i2 == 3);
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ovs_assert(ovs_scan("+123", "%2d %d", &i, &i2));
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ovs_assert(i == 1);
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ovs_assert(i2 == 23);
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ovs_assert(ovs_scan("-123", "%2d %d", &i, &i2));
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ovs_assert(i == -1);
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ovs_assert(i2 == 23);
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ovs_assert(ovs_scan("0123", "%2d %d", &i, &i2));
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ovs_assert(i == 1);
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ovs_assert(i2 == 23);
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ovs_assert(ovs_scan("123", "%*2d %d", &i));
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ovs_assert(i == 3);
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ovs_assert(ovs_scan("+123", "%2d %*d", &i));
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ovs_assert(i == 1);
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ovs_assert(i2 == 23);
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ovs_assert(ovs_scan("-123", "%*2d %*d"));
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ovs_assert(ovs_scan("123", "%u", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan("0", "%u", &i));
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ovs_assert(i == 0);
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ovs_assert(!ovs_scan("123", "%u%u", &i, &i2));
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ovs_assert(ovs_scan("+123", "%u", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan("-123", "%u", &i));
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ovs_assert(i == -123);
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ovs_assert(ovs_scan("0123", "%u", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan(" 123", "%u", &i));
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ovs_assert(i == 123);
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ovs_assert(ovs_scan("0x123", "%u", &i));
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ovs_assert(i == 0);
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ovs_assert(ovs_scan("123", "%2u %u", &i, &i2));
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ovs_assert(i == 12);
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ovs_assert(i2 == 3);
|
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ovs_assert(ovs_scan("+123", "%2u %u", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2u %u", &i, &i2));
|
||
ovs_assert(i == -1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2u %u", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("123", "%*2u %u", &i));
|
||
ovs_assert(i == 3);
|
||
ovs_assert(ovs_scan("+123", "%2u %*u", &i));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%*2u %*u"));
|
||
|
||
ovs_assert(ovs_scan("123", "%i", &i));
|
||
ovs_assert(i == 123);
|
||
ovs_assert(ovs_scan("0", "%i", &i));
|
||
ovs_assert(i == 0);
|
||
ovs_assert(!ovs_scan("123", "%i%i", &i, &i2));
|
||
ovs_assert(ovs_scan("+123", "%i", &i));
|
||
ovs_assert(i == 123);
|
||
ovs_assert(ovs_scan("-123", "%i", &i));
|
||
ovs_assert(i == -123);
|
||
ovs_assert(ovs_scan("0123", "%i", &i));
|
||
ovs_assert(i == 0123);
|
||
ovs_assert(ovs_scan(" 123", "%i", &i));
|
||
ovs_assert(i == 123);
|
||
ovs_assert(ovs_scan("0x123", "%i", &i));
|
||
ovs_assert(i == 0x123);
|
||
ovs_assert(ovs_scan("123", "%2i %i", &i, &i2));
|
||
ovs_assert(i == 12);
|
||
ovs_assert(i2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2i %i", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2i %i", &i, &i2));
|
||
ovs_assert(i == -1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2i %i", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("123", "%*2i %i", &i));
|
||
ovs_assert(i == 3);
|
||
ovs_assert(ovs_scan("+123", "%2i %*i", &i));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%*2i %*i"));
|
||
|
||
ovs_assert(ovs_scan("123", "%o", &i));
|
||
ovs_assert(i == 0123);
|
||
ovs_assert(ovs_scan("0", "%o", &i));
|
||
ovs_assert(i == 0);
|
||
ovs_assert(!ovs_scan("123", "%o%o", &i, &i2));
|
||
ovs_assert(ovs_scan("+123", "%o", &i));
|
||
ovs_assert(i == 0123);
|
||
ovs_assert(ovs_scan("-123", "%o", &i));
|
||
ovs_assert(i == -0123);
|
||
ovs_assert(ovs_scan("0123", "%o", &i));
|
||
ovs_assert(i == 0123);
|
||
ovs_assert(ovs_scan(" 123", "%o", &i));
|
||
ovs_assert(i == 0123);
|
||
ovs_assert(ovs_scan("0x123", "%o", &i));
|
||
ovs_assert(i == 0);
|
||
ovs_assert(ovs_scan("123", "%2o %o", &i, &i2));
|
||
ovs_assert(i == 012);
|
||
ovs_assert(i2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2o %o", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 023);
|
||
ovs_assert(ovs_scan("-123", "%2o %o", &i, &i2));
|
||
ovs_assert(i == -1);
|
||
ovs_assert(i2 == 023);
|
||
ovs_assert(ovs_scan("0123", "%2o %o", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 023);
|
||
ovs_assert(ovs_scan("123", "%*2o %o", &i));
|
||
ovs_assert(i == 3);
|
||
ovs_assert(ovs_scan("+123", "%2o %*o", &i));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 023);
|
||
ovs_assert(ovs_scan("-123", "%*2o %*o"));
|
||
|
||
ovs_assert(ovs_scan("123", "%x", &i));
|
||
ovs_assert(i == 0x123);
|
||
ovs_assert(ovs_scan("0", "%x", &i));
|
||
ovs_assert(i == 0);
|
||
ovs_assert(!ovs_scan("123", "%x%x", &i, &i2));
|
||
ovs_assert(ovs_scan("+123", "%x", &i));
|
||
ovs_assert(i == 0x123);
|
||
ovs_assert(ovs_scan("-123", "%x", &i));
|
||
ovs_assert(i == -0x123);
|
||
ovs_assert(ovs_scan("0123", "%x", &i));
|
||
ovs_assert(i == 0x123);
|
||
ovs_assert(ovs_scan(" 123", "%x", &i));
|
||
ovs_assert(i == 0x123);
|
||
ovs_assert(ovs_scan("0x123", "%x", &i));
|
||
ovs_assert(i == 0x123);
|
||
ovs_assert(ovs_scan("123", "%2x %x", &i, &i2));
|
||
ovs_assert(i == 0x12);
|
||
ovs_assert(i2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2x %x", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 0x23);
|
||
ovs_assert(ovs_scan("-123", "%2x %x", &i, &i2));
|
||
ovs_assert(i == -1);
|
||
ovs_assert(i2 == 0x23);
|
||
ovs_assert(ovs_scan("0123", "%2x %x", &i, &i2));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 0x23);
|
||
ovs_assert(ovs_scan("123", "%*2x %x", &i));
|
||
ovs_assert(i == 3);
|
||
ovs_assert(ovs_scan("+123", "%2x %*x", &i));
|
||
ovs_assert(i == 1);
|
||
ovs_assert(i2 == 0x23);
|
||
ovs_assert(ovs_scan("-123", "%*2x %*x"));
|
||
|
||
ovs_assert(ovs_scan("123", "%hd", &s));
|
||
ovs_assert(s == 123);
|
||
ovs_assert(!ovs_scan("123", "%hd%hd", &s, &s2));
|
||
ovs_assert(ovs_scan("+123", "%hd", &s));
|
||
ovs_assert(s == 123);
|
||
ovs_assert(ovs_scan("-123", "%hd", &s));
|
||
ovs_assert(s == -123);
|
||
ovs_assert(ovs_scan("0123", "%hd", &s));
|
||
ovs_assert(s == 123);
|
||
ovs_assert(ovs_scan(" 123", "%hd", &s));
|
||
ovs_assert(s == 123);
|
||
ovs_assert(ovs_scan("0x123", "%hd", &s));
|
||
ovs_assert(s == 0);
|
||
ovs_assert(ovs_scan("123", "%2hd %hd", &s, &s2));
|
||
ovs_assert(s == 12);
|
||
ovs_assert(s2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2hd %hd", &s, &s2));
|
||
ovs_assert(s == 1);
|
||
ovs_assert(s2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2hd %hd", &s, &s2));
|
||
ovs_assert(s == -1);
|
||
ovs_assert(s2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2hd %hd", &s, &s2));
|
||
ovs_assert(s == 1);
|
||
ovs_assert(s2 == 23);
|
||
|
||
ovs_assert(ovs_scan("123", "%hhd", &c));
|
||
ovs_assert(c == 123);
|
||
ovs_assert(ovs_scan("0", "%hhd", &c));
|
||
ovs_assert(c == 0);
|
||
ovs_assert(!ovs_scan("123", "%hhd%hhd", &c, &c2));
|
||
ovs_assert(ovs_scan("+123", "%hhd", &c));
|
||
ovs_assert(c == 123);
|
||
ovs_assert(ovs_scan("-123", "%hhd", &c));
|
||
ovs_assert(c == -123);
|
||
ovs_assert(ovs_scan("0123", "%hhd", &c));
|
||
ovs_assert(c == 123);
|
||
ovs_assert(ovs_scan(" 123", "%hhd", &c));
|
||
ovs_assert(c == 123);
|
||
ovs_assert(ovs_scan("0x123", "%hhd", &c));
|
||
ovs_assert(c == 0);
|
||
ovs_assert(ovs_scan("123", "%2hhd %hhd", &c, &c2));
|
||
ovs_assert(c == 12);
|
||
ovs_assert(c2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2hhd %hhd", &c, &c2));
|
||
ovs_assert(c == 1);
|
||
ovs_assert(c2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2hhd %hhd", &c, &c2));
|
||
ovs_assert(c == -1);
|
||
ovs_assert(c2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2hhd %hhd", &c, &c2));
|
||
ovs_assert(c == 1);
|
||
ovs_assert(c2 == 23);
|
||
|
||
ovs_assert(ovs_scan("123", "%ld", &l));
|
||
ovs_assert(l == 123);
|
||
ovs_assert(ovs_scan("0", "%ld", &l));
|
||
ovs_assert(l == 0);
|
||
ovs_assert(!ovs_scan("123", "%ld%ld", &l, &l2));
|
||
ovs_assert(ovs_scan("+123", "%ld", &l));
|
||
ovs_assert(l == 123);
|
||
ovs_assert(ovs_scan("-123", "%ld", &l));
|
||
ovs_assert(l == -123);
|
||
ovs_assert(ovs_scan("0123", "%ld", &l));
|
||
ovs_assert(l == 123);
|
||
ovs_assert(ovs_scan(" 123", "%ld", &l));
|
||
ovs_assert(l == 123);
|
||
ovs_assert(ovs_scan("0x123", "%ld", &l));
|
||
ovs_assert(l == 0);
|
||
ovs_assert(ovs_scan("123", "%2ld %ld", &l, &l2));
|
||
ovs_assert(l == 12);
|
||
ovs_assert(l2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2ld %ld", &l, &l2));
|
||
ovs_assert(l == 1);
|
||
ovs_assert(l2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2ld %ld", &l, &l2));
|
||
ovs_assert(l == -1);
|
||
ovs_assert(l2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2ld %ld", &l, &l2));
|
||
ovs_assert(l == 1);
|
||
ovs_assert(l2 == 23);
|
||
|
||
ovs_assert(ovs_scan("123", "%lld", &ll));
|
||
ovs_assert(ll == 123);
|
||
ovs_assert(ovs_scan("0", "%lld", &ll));
|
||
ovs_assert(ll == 0);
|
||
ovs_assert(!ovs_scan("123", "%lld%lld", &ll, &ll2));
|
||
ovs_assert(ovs_scan("+123", "%lld", &ll));
|
||
ovs_assert(ll == 123);
|
||
ovs_assert(ovs_scan("-123", "%lld", &ll));
|
||
ovs_assert(ll == -123);
|
||
ovs_assert(ovs_scan("0123", "%lld", &ll));
|
||
ovs_assert(ll == 123);
|
||
ovs_assert(ovs_scan(" 123", "%lld", &ll));
|
||
ovs_assert(ll == 123);
|
||
ovs_assert(ovs_scan("0x123", "%lld", &ll));
|
||
ovs_assert(ll == 0);
|
||
ovs_assert(ovs_scan("123", "%2lld %lld", &ll, &ll2));
|
||
ovs_assert(ll == 12);
|
||
ovs_assert(ll2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2lld %lld", &ll, &ll2));
|
||
ovs_assert(ll == 1);
|
||
ovs_assert(ll2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2lld %lld", &ll, &ll2));
|
||
ovs_assert(ll == -1);
|
||
ovs_assert(ll2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2lld %lld", &ll, &ll2));
|
||
ovs_assert(ll == 1);
|
||
ovs_assert(ll2 == 23);
|
||
|
||
ovs_assert(ovs_scan("123", "%jd", &im));
|
||
ovs_assert(im == 123);
|
||
ovs_assert(ovs_scan("0", "%jd", &im));
|
||
ovs_assert(im == 0);
|
||
ovs_assert(!ovs_scan("123", "%jd%jd", &im, &im2));
|
||
ovs_assert(ovs_scan("+123", "%jd", &im));
|
||
ovs_assert(im == 123);
|
||
ovs_assert(ovs_scan("-123", "%jd", &im));
|
||
ovs_assert(im == -123);
|
||
ovs_assert(ovs_scan("0123", "%jd", &im));
|
||
ovs_assert(im == 123);
|
||
ovs_assert(ovs_scan(" 123", "%jd", &im));
|
||
ovs_assert(im == 123);
|
||
ovs_assert(ovs_scan("0x123", "%jd", &im));
|
||
ovs_assert(im == 0);
|
||
ovs_assert(ovs_scan("123", "%2jd %jd", &im, &im2));
|
||
ovs_assert(im == 12);
|
||
ovs_assert(im2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2jd %jd", &im, &im2));
|
||
ovs_assert(im == 1);
|
||
ovs_assert(im2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2jd %jd", &im, &im2));
|
||
ovs_assert(im == -1);
|
||
ovs_assert(im2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2jd %jd", &im, &im2));
|
||
ovs_assert(im == 1);
|
||
ovs_assert(im2 == 23);
|
||
|
||
ovs_assert(ovs_scan("123", "%td", &pd));
|
||
ovs_assert(pd == 123);
|
||
ovs_assert(ovs_scan("0", "%td", &pd));
|
||
ovs_assert(pd == 0);
|
||
ovs_assert(!ovs_scan("123", "%td%td", &pd, &pd2));
|
||
ovs_assert(ovs_scan("+123", "%td", &pd));
|
||
ovs_assert(pd == 123);
|
||
ovs_assert(ovs_scan("-123", "%td", &pd));
|
||
ovs_assert(pd == -123);
|
||
ovs_assert(ovs_scan("0123", "%td", &pd));
|
||
ovs_assert(pd == 123);
|
||
ovs_assert(ovs_scan(" 123", "%td", &pd));
|
||
ovs_assert(pd == 123);
|
||
ovs_assert(ovs_scan("0x123", "%td", &pd));
|
||
ovs_assert(pd == 0);
|
||
ovs_assert(ovs_scan("123", "%2td %td", &pd, &pd2));
|
||
ovs_assert(pd == 12);
|
||
ovs_assert(pd2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2td %td", &pd, &pd2));
|
||
ovs_assert(pd == 1);
|
||
ovs_assert(pd2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2td %td", &pd, &pd2));
|
||
ovs_assert(pd == -1);
|
||
ovs_assert(pd2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2td %td", &pd, &pd2));
|
||
ovs_assert(pd == 1);
|
||
ovs_assert(pd2 == 23);
|
||
|
||
ovs_assert(ovs_scan("123", "%zd", &sz));
|
||
ovs_assert(sz == 123);
|
||
ovs_assert(ovs_scan("0", "%zd", &sz));
|
||
ovs_assert(sz == 0);
|
||
ovs_assert(!ovs_scan("123", "%zd%zd", &sz, &sz2));
|
||
ovs_assert(ovs_scan("+123", "%zd", &sz));
|
||
ovs_assert(sz == 123);
|
||
ovs_assert(ovs_scan("-123", "%zd", &sz));
|
||
ovs_assert(sz == -123);
|
||
ovs_assert(ovs_scan("0123", "%zd", &sz));
|
||
ovs_assert(sz == 123);
|
||
ovs_assert(ovs_scan(" 123", "%zd", &sz));
|
||
ovs_assert(sz == 123);
|
||
ovs_assert(ovs_scan("0x123", "%zd", &sz));
|
||
ovs_assert(sz == 0);
|
||
ovs_assert(ovs_scan("123", "%2zd %zd", &sz, &sz2));
|
||
ovs_assert(sz == 12);
|
||
ovs_assert(sz2 == 3);
|
||
ovs_assert(ovs_scan("+123", "%2zd %zd", &sz, &sz2));
|
||
ovs_assert(sz == 1);
|
||
ovs_assert(sz2 == 23);
|
||
ovs_assert(ovs_scan("-123", "%2zd %zd", &sz, &sz2));
|
||
ovs_assert(sz == -1);
|
||
ovs_assert(sz2 == 23);
|
||
ovs_assert(ovs_scan("0123", "%2zd %zd", &sz, &sz2));
|
||
ovs_assert(sz == 1);
|
||
ovs_assert(sz2 == 23);
|
||
|
||
ovs_assert(ovs_scan("0.25", "%f", &f));
|
||
ovs_assert(f == 0.25);
|
||
ovs_assert(ovs_scan("1.0", "%f", &f));
|
||
ovs_assert(f == 1.0);
|
||
ovs_assert(ovs_scan("-5", "%f", &f));
|
||
ovs_assert(f == -5.0);
|
||
ovs_assert(ovs_scan("+6", "%f", &f));
|
||
ovs_assert(f == 6.0);
|
||
ovs_assert(ovs_scan("-1e5", "%f", &f));
|
||
ovs_assert(f == -1e5);
|
||
ovs_assert(ovs_scan("-.25", "%f", &f));
|
||
ovs_assert(f == -.25);
|
||
ovs_assert(ovs_scan("+123.e1", "%f", &f));
|
||
ovs_assert(f == 1230.0);
|
||
ovs_assert(ovs_scan("25e-2", "%f", &f));
|
||
ovs_assert(f == 0.25);
|
||
ovs_assert(ovs_scan("0.25", "%1f %f", &f, &f2));
|
||
ovs_assert(f == 0);
|
||
ovs_assert(f2 == 0.25);
|
||
ovs_assert(ovs_scan("1.0", "%2f %f", &f, &f2));
|
||
ovs_assert(f == 1.0);
|
||
ovs_assert(f2 == 0.0);
|
||
ovs_assert(!ovs_scan("-5", "%1f", &f));
|
||
ovs_assert(!ovs_scan("+6", "%1f", &f));
|
||
ovs_assert(!ovs_scan("-1e5", "%2f %*f", &f));
|
||
ovs_assert(f == -1);
|
||
ovs_assert(!ovs_scan("-.25", "%2f", &f));
|
||
ovs_assert(!ovs_scan("+123.e1", "%6f", &f));
|
||
ovs_assert(!ovs_scan("25e-2", "%4f", &f));
|
||
|
||
ovs_assert(ovs_scan("0.25", "%lf", &d));
|
||
ovs_assert(d == 0.25);
|
||
ovs_assert(ovs_scan("1.0", "%lf", &d));
|
||
ovs_assert(d == 1.0);
|
||
ovs_assert(ovs_scan("-5", "%lf", &d));
|
||
ovs_assert(d == -5.0);
|
||
ovs_assert(ovs_scan("+6", "%lf", &d));
|
||
ovs_assert(d == 6.0);
|
||
ovs_assert(ovs_scan("-1e5", "%lf", &d));
|
||
ovs_assert(d == -1e5);
|
||
ovs_assert(ovs_scan("-.25", "%lf", &d));
|
||
ovs_assert(d == -.25);
|
||
ovs_assert(ovs_scan("+123.e1", "%lf", &d));
|
||
ovs_assert(d == 1230.0);
|
||
ovs_assert(ovs_scan("25e-2", "%lf", &d));
|
||
ovs_assert(d == 0.25);
|
||
ovs_assert(ovs_scan("0.25", "%1lf %lf", &d, &d2));
|
||
ovs_assert(d == 0);
|
||
ovs_assert(d2 == 0.25);
|
||
ovs_assert(ovs_scan("1.0", "%2lf %lf", &d, &d2));
|
||
ovs_assert(d == 1.0);
|
||
ovs_assert(d2 == 0.0);
|
||
ovs_assert(!ovs_scan("-5", "%1lf", &d));
|
||
ovs_assert(!ovs_scan("+6", "%1lf", &d));
|
||
ovs_assert(!ovs_scan("-1e5", "%2lf %*f", &d));
|
||
ovs_assert(d == -1);
|
||
ovs_assert(!ovs_scan("-.25", "%2lf", &d));
|
||
ovs_assert(!ovs_scan("+123.e1", "%6lf", &d));
|
||
ovs_assert(!ovs_scan("25e-2", "%4lf", &d));
|
||
|
||
ovs_assert(ovs_scan("0.25", "%Lf", &ld));
|
||
ovs_assert(ld == 0.25);
|
||
ovs_assert(ovs_scan("1.0", "%Lf", &ld));
|
||
ovs_assert(ld == 1.0);
|
||
ovs_assert(ovs_scan("-5", "%Lf", &ld));
|
||
ovs_assert(ld == -5.0);
|
||
ovs_assert(ovs_scan("+6", "%Lf", &ld));
|
||
ovs_assert(ld == 6.0);
|
||
ovs_assert(ovs_scan("-1e5", "%Lf", &ld));
|
||
ovs_assert(ld == -1e5);
|
||
ovs_assert(ovs_scan("-.25", "%Lf", &ld));
|
||
ovs_assert(ld == -.25);
|
||
ovs_assert(ovs_scan("+123.e1", "%Lf", &ld));
|
||
ovs_assert(ld == 1230.0);
|
||
ovs_assert(ovs_scan("25e-2", "%Lf", &ld));
|
||
ovs_assert(ld == 0.25);
|
||
ovs_assert(ovs_scan("0.25", "%1Lf %Lf", &ld, &ld2));
|
||
ovs_assert(ld == 0);
|
||
ovs_assert(ld2 == 0.25);
|
||
ovs_assert(ovs_scan("1.0", "%2Lf %Lf", &ld, &ld2));
|
||
ovs_assert(ld == 1.0);
|
||
ovs_assert(ld2 == 0.0);
|
||
ovs_assert(!ovs_scan("-5", "%1Lf", &ld));
|
||
ovs_assert(!ovs_scan("+6", "%1Lf", &ld));
|
||
ovs_assert(!ovs_scan("-1e5", "%2Lf %*f", &ld));
|
||
ovs_assert(ld == -1);
|
||
ovs_assert(!ovs_scan("-.25", "%2Lf", &ld));
|
||
ovs_assert(!ovs_scan("+123.e1", "%6Lf", &ld));
|
||
ovs_assert(!ovs_scan("25e-2", "%4Lf", &ld));
|
||
|
||
ovs_assert(ovs_scan(" Hello,\tworld ", "%*s%n%*s%n", &n, &n2));
|
||
ovs_assert(n == 7);
|
||
ovs_assert(n2 == 13);
|
||
ovs_assert(!ovs_scan(" Hello,\tworld ", "%*s%*s%*s"));
|
||
ovs_assert(ovs_scan(" Hello,\tworld ", "%6s%n%5s%n", str, &n, str2, &n2));
|
||
ovs_assert(!strcmp(str, "Hello,"));
|
||
ovs_assert(n == 7);
|
||
ovs_assert(!strcmp(str2, "world"));
|
||
ovs_assert(n2 == 13);
|
||
ovs_assert(ovs_scan(" Hello,\tworld ", "%5s%5s%5s", str, str2, str3));
|
||
ovs_assert(!strcmp(str, "Hello"));
|
||
ovs_assert(!strcmp(str2, ","));
|
||
ovs_assert(!strcmp(str3, "world"));
|
||
ovs_assert(!ovs_scan(" ", "%*s"));
|
||
|
||
ovs_assert(ovs_scan(" Hello,\tworld ", "%*c%n%*c%n%c%n",
|
||
&n, &n2, &c, &n3));
|
||
ovs_assert(n == 1);
|
||
ovs_assert(n2 == 2);
|
||
ovs_assert(c == 'e');
|
||
ovs_assert(n3 == 3);
|
||
ovs_assert(ovs_scan(" Hello,\tworld ", "%*5c%5c", str));
|
||
ovs_assert(!memcmp(str, "o,\two", 5));
|
||
ovs_assert(!ovs_scan(" Hello,\tworld ", "%*15c"));
|
||
|
||
ovs_assert(ovs_scan("0x1234xyzzy", "%9[x0-9a-fA-F]%n", str, &n));
|
||
ovs_assert(!strcmp(str, "0x1234x"));
|
||
ovs_assert(n == 7);
|
||
ovs_assert(ovs_scan("foo:bar=baz", "%5[^:=]%n:%5[^:=]%n=%5[^:=]%n",
|
||
str, &n, str2, &n2, str3, &n3));
|
||
ovs_assert(!strcmp(str, "foo"));
|
||
ovs_assert(n == 3);
|
||
ovs_assert(!strcmp(str2, "bar"));
|
||
ovs_assert(n2 == 7);
|
||
ovs_assert(!strcmp(str3, "baz"));
|
||
ovs_assert(n3 == 11);
|
||
ovs_assert(!ovs_scan(" ", "%*[0-9]"));
|
||
ovs_assert(ovs_scan("0x123a]4xyzzy-", "%[]x0-9a-fA-F]", str));
|
||
ovs_assert(!strcmp(str, "0x123a]4x"));
|
||
ovs_assert(ovs_scan("abc]xyz","%[^]xyz]", str));
|
||
ovs_assert(!strcmp(str, "abc"));
|
||
ovs_assert(!ovs_scan("0x123a]4xyzzy-", "%[x0-9]a-fA-F]", str));
|
||
ovs_assert(ovs_scan("0x12-3]xyz", "%[x0-9a-f-]", str));
|
||
ovs_assert(!strcmp(str, "0x12-3"));
|
||
ovs_assert(ovs_scan("0x12-3]xyz", "%[^a-f-]", str));
|
||
ovs_assert(!strcmp(str, "0x12"));
|
||
ovs_assert(sscanf("0x12-3]xyz", "%[^-a-f]", str));
|
||
ovs_assert(!strcmp(str, "0x12"));
|
||
}
|
||
|
||
static const struct command commands[] = {
|
||
{"ctz", 0, 0, test_ctz},
|
||
{"round_up_pow2", 0, 0, test_round_up_pow2},
|
||
{"round_down_pow2", 0, 0, test_round_down_pow2},
|
||
{"popcount", 0, 0, test_popcount},
|
||
{"log_2_floor", 0, 0, test_log_2_floor},
|
||
{"bitwise_copy", 0, 0, test_bitwise_copy},
|
||
{"bitwise_zero", 0, 0, test_bitwise_zero},
|
||
{"bitwise_one", 0, 0, test_bitwise_one},
|
||
{"bitwise_is_all_zeros", 0, 0, test_bitwise_is_all_zeros},
|
||
{"follow-symlinks", 1, INT_MAX, test_follow_symlinks},
|
||
{"assert", 0, 0, test_assert},
|
||
{"ovs_scan", 0, 0, test_ovs_scan},
|
||
{NULL, 0, 0, NULL},
|
||
};
|
||
|
||
static void
|
||
parse_options(int argc, char *argv[])
|
||
{
|
||
enum {
|
||
VLOG_OPTION_ENUMS
|
||
};
|
||
static const struct option long_options[] = {
|
||
VLOG_LONG_OPTIONS,
|
||
{NULL, 0, NULL, 0},
|
||
};
|
||
char *short_options = long_options_to_short_options(long_options);
|
||
|
||
for (;;) {
|
||
int c = getopt_long(argc, argv, short_options, long_options, NULL);
|
||
if (c == -1) {
|
||
break;
|
||
}
|
||
|
||
switch (c) {
|
||
VLOG_OPTION_HANDLERS
|
||
|
||
case '?':
|
||
exit(EXIT_FAILURE);
|
||
|
||
default:
|
||
abort();
|
||
}
|
||
}
|
||
free(short_options);
|
||
}
|
||
|
||
int
|
||
main(int argc, char *argv[])
|
||
{
|
||
set_program_name(argv[0]);
|
||
parse_options(argc, argv);
|
||
run_command(argc - optind, argv + optind, commands);
|
||
return 0;
|
||
}
|