Initial checkin of gRPC to third_party/

third_party/grpc/test/core/iomgr/sockaddr_utils_test.c

Index: third_party/grpc/test/core/iomgr/sockaddr_utils_test.c
diff --git a/third_party/grpc/test/core/iomgr/sockaddr_utils_test.c b/third_party/grpc/test/core/iomgr/sockaddr_utils_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..a7b57c1466345aaad8ed92dc6f03dc628cb3b943
--- /dev/null
+++ b/third_party/grpc/test/core/iomgr/sockaddr_utils_test.c
@@ -0,0 +1,272 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/iomgr/sockaddr_utils.h"
+
+#include <errno.h>
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
+#include "test/core/util/test_config.h"
+
+static struct sockaddr_in make_addr4(const uint8_t *data, size_t data_len) {
+  struct sockaddr_in addr4;
+  memset(&addr4, 0, sizeof(addr4));
+  addr4.sin_family = AF_INET;
+  GPR_ASSERT(data_len == sizeof(addr4.sin_addr.s_addr));
+  memcpy(&addr4.sin_addr.s_addr, data, data_len);
+  addr4.sin_port = htons(12345);
+  return addr4;
+}
+
+static struct sockaddr_in6 make_addr6(const uint8_t *data, size_t data_len) {
+  struct sockaddr_in6 addr6;
+  memset(&addr6, 0, sizeof(addr6));
+  addr6.sin6_family = AF_INET6;
+  GPR_ASSERT(data_len == sizeof(addr6.sin6_addr.s6_addr));
+  memcpy(&addr6.sin6_addr.s6_addr, data, data_len);
+  addr6.sin6_port = htons(12345);
+  return addr6;
+}
+
+static const uint8_t kMapped[] = {0, 0, 0,    0,    0,   0, 0, 0,
+                                  0, 0, 0xff, 0xff, 192, 0, 2, 1};
+
+static const uint8_t kNotQuiteMapped[] = {0, 0, 0,    0,    0,   0, 0, 0,
+                                          0, 0, 0xff, 0xfe, 192, 0, 2, 99};
+static const uint8_t kIPv4[] = {192, 0, 2, 1};
+
+static const uint8_t kIPv6[] = {0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0,
+                                0,    0,    0,    0,    0, 0, 0, 1};
+
+static void test_sockaddr_is_v4mapped(void) {
+  struct sockaddr_in input4;
+  struct sockaddr_in6 input6;
+  struct sockaddr_in output4;
+  struct sockaddr_in expect4;
+
+  gpr_log(GPR_INFO, "%s", "test_sockaddr_is_v4mapped");
+
+  /* v4mapped input should succeed. */
+  input6 = make_addr6(kMapped, sizeof(kMapped));
+  GPR_ASSERT(grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, NULL));
+  GPR_ASSERT(
+      grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, &output4));
+  expect4 = make_addr4(kIPv4, sizeof(kIPv4));
+  GPR_ASSERT(memcmp(&expect4, &output4, sizeof(expect4)) == 0);
+
+  /* Non-v4mapped input should fail. */
+  input6 = make_addr6(kNotQuiteMapped, sizeof(kNotQuiteMapped));
+  GPR_ASSERT(
+      !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, NULL));
+  GPR_ASSERT(
+      !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, &output4));
+  /* Output is unchanged. */
+  GPR_ASSERT(memcmp(&expect4, &output4, sizeof(expect4)) == 0);
+
+  /* Plain IPv4 input should also fail. */
+  input4 = make_addr4(kIPv4, sizeof(kIPv4));
+  GPR_ASSERT(
+      !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input4, NULL));
+}
+
+static void test_sockaddr_to_v4mapped(void) {
+  struct sockaddr_in input4;
+  struct sockaddr_in6 input6;
+  struct sockaddr_in6 output6;
+  struct sockaddr_in6 expect6;
+
+  gpr_log(GPR_INFO, "%s", "test_sockaddr_to_v4mapped");
+
+  /* IPv4 input should succeed. */
+  input4 = make_addr4(kIPv4, sizeof(kIPv4));
+  GPR_ASSERT(
+      grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input4, &output6));
+  expect6 = make_addr6(kMapped, sizeof(kMapped));
+  GPR_ASSERT(memcmp(&expect6, &output6, sizeof(output6)) == 0);
+
+  /* IPv6 input should fail. */
+  input6 = make_addr6(kIPv6, sizeof(kIPv6));
+  GPR_ASSERT(
+      !grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input6, &output6));
+  /* Output is unchanged. */
+  GPR_ASSERT(memcmp(&expect6, &output6, sizeof(output6)) == 0);
+
+  /* Already-v4mapped input should also fail. */
+  input6 = make_addr6(kMapped, sizeof(kMapped));
+  GPR_ASSERT(
+      !grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input6, &output6));
+}
+
+static void test_sockaddr_is_wildcard(void) {
+  struct sockaddr_in wild4;
+  struct sockaddr_in6 wild6;
+  struct sockaddr_in6 wild_mapped;
+  struct sockaddr dummy;
+  int port;
+
+  gpr_log(GPR_INFO, "%s", "test_sockaddr_is_wildcard");
+
+  /* Generate wildcards. */
+  grpc_sockaddr_make_wildcards(555, &wild4, &wild6);
+  GPR_ASSERT(
+      grpc_sockaddr_to_v4mapped((const struct sockaddr *)&wild4, &wild_mapped));
+
+  /* Test 0.0.0.0:555 */
+  port = -1;
+  GPR_ASSERT(grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild4, &port));
+  GPR_ASSERT(port == 555);
+  memset(&wild4.sin_addr.s_addr, 0xbd, 1);
+  GPR_ASSERT(
+      !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild4, &port));
+
+  /* Test [::]:555 */
+  port = -1;
+  GPR_ASSERT(grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild6, &port));
+  GPR_ASSERT(port == 555);
+  memset(&wild6.sin6_addr.s6_addr, 0xbd, 1);
+  GPR_ASSERT(
+      !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild6, &port));
+
+  /* Test [::ffff:0.0.0.0]:555 */
+  port = -1;
+  GPR_ASSERT(
+      grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild_mapped, &port));
+  GPR_ASSERT(port == 555);
+  memset(&wild_mapped.sin6_addr.s6_addr, 0xbd, 1);
+  GPR_ASSERT(
+      !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild_mapped, &port));
+
+  /* Test AF_UNSPEC. */
+  port = -1;
+  memset(&dummy, 0, sizeof(dummy));
+  GPR_ASSERT(!grpc_sockaddr_is_wildcard(&dummy, &port));
+  GPR_ASSERT(port == -1);
+}
+
+static void expect_sockaddr_str(const char *expected, void *addr,
+                                int normalize) {
+  int result;
+  char *str;
+  gpr_log(GPR_INFO, "  expect_sockaddr_str(%s)", expected);
+  result = grpc_sockaddr_to_string(&str, (struct sockaddr *)addr, normalize);
+  GPR_ASSERT(str != NULL);
+  GPR_ASSERT(result >= 0);
+  GPR_ASSERT((size_t)result == strlen(str));
+  GPR_ASSERT(strcmp(expected, str) == 0);
+  gpr_free(str);
+}
+
+static void expect_sockaddr_uri(const char *expected, void *addr) {
+  char *str;
+  gpr_log(GPR_INFO, "  expect_sockaddr_uri(%s)", expected);
+  str = grpc_sockaddr_to_uri((struct sockaddr *)addr);
+  GPR_ASSERT(str != NULL);
+  GPR_ASSERT(strcmp(expected, str) == 0);
+  gpr_free(str);
+}
+
+static void test_sockaddr_to_string(void) {
+  struct sockaddr_in input4;
+  struct sockaddr_in6 input6;
+  struct sockaddr dummy;
+
+  gpr_log(GPR_INFO, "%s", "test_sockaddr_to_string");
+
+  errno = 0x7EADBEEF;
+
+  input4 = make_addr4(kIPv4, sizeof(kIPv4));
+  expect_sockaddr_str("192.0.2.1:12345", &input4, 0);
+  expect_sockaddr_str("192.0.2.1:12345", &input4, 1);
+  expect_sockaddr_uri("ipv4:192.0.2.1:12345", &input4);
+
+  input6 = make_addr6(kIPv6, sizeof(kIPv6));
+  expect_sockaddr_str("[2001:db8::1]:12345", &input6, 0);
+  expect_sockaddr_str("[2001:db8::1]:12345", &input6, 1);
+  expect_sockaddr_uri("ipv6:[2001:db8::1]:12345", &input6);
+
+  input6 = make_addr6(kMapped, sizeof(kMapped));
+  expect_sockaddr_str("[::ffff:192.0.2.1]:12345", &input6, 0);
+  expect_sockaddr_str("192.0.2.1:12345", &input6, 1);
+  expect_sockaddr_uri("ipv4:192.0.2.1:12345", &input6);
+
+  input6 = make_addr6(kNotQuiteMapped, sizeof(kNotQuiteMapped));
+  expect_sockaddr_str("[::fffe:c000:263]:12345", &input6, 0);
+  expect_sockaddr_str("[::fffe:c000:263]:12345", &input6, 1);
+  expect_sockaddr_uri("ipv6:[::fffe:c000:263]:12345", &input6);
+
+  memset(&dummy, 0, sizeof(dummy));
+  dummy.sa_family = 123;
+  expect_sockaddr_str("(sockaddr family=123)", &dummy, 0);
+  expect_sockaddr_str("(sockaddr family=123)", &dummy, 1);
+  GPR_ASSERT(grpc_sockaddr_to_uri(&dummy) == NULL);
+
+  GPR_ASSERT(errno == 0x7EADBEEF);
+}
+
+static void test_sockaddr_set_get_port(void) {
+  struct sockaddr_in input4;
+  struct sockaddr_in6 input6;
+  struct sockaddr dummy;
+
+  gpr_log(GPR_DEBUG, "test_sockaddr_set_get_port");
+
+  input4 = make_addr4(kIPv4, sizeof(kIPv4));
+  GPR_ASSERT(grpc_sockaddr_get_port((struct sockaddr *)&input4) == 12345);
+  GPR_ASSERT(grpc_sockaddr_set_port((struct sockaddr *)&input4, 54321));
+  GPR_ASSERT(grpc_sockaddr_get_port((struct sockaddr *)&input4) == 54321);
+
+  input6 = make_addr6(kIPv6, sizeof(kIPv6));
+  GPR_ASSERT(grpc_sockaddr_get_port((struct sockaddr *)&input6) == 12345);
+  GPR_ASSERT(grpc_sockaddr_set_port((struct sockaddr *)&input6, 54321));
+  GPR_ASSERT(grpc_sockaddr_get_port((struct sockaddr *)&input6) == 54321);
+
+  memset(&dummy, 0, sizeof(dummy));
+  dummy.sa_family = 123;
+  GPR_ASSERT(grpc_sockaddr_get_port(&dummy) == 0);
+  GPR_ASSERT(grpc_sockaddr_set_port(&dummy, 1234) == 0);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+
+  test_sockaddr_is_v4mapped();
+  test_sockaddr_to_v4mapped();
+  test_sockaddr_is_wildcard();
+  test_sockaddr_to_string();
+  test_sockaddr_set_get_port();
+
+  return 0;
+}