Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc-cloned / deps / grpc / src / core / lib / gprpp / host_port.cc

diff --git a/legacy-libs/grpc-cloned/deps/grpc/src/core/lib/gprpp/host_port.cc b/legacy-libs/grpc-cloned/deps/grpc/src/core/lib/gprpp/host_port.cc
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+++ b/legacy-libs/grpc-cloned/deps/grpc/src/core/lib/gprpp/host_port.cc
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+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/gprpp/host_port.h"
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/lib/gpr/string.h"
+#include "src/core/lib/gprpp/string_view.h"
+
+namespace grpc_core {
+int JoinHostPort(UniquePtr<char>* out, const char* host, int port) {
+  char* tmp;
+  int ret;
+  if (host[0] != '[' && strchr(host, ':') != nullptr) {
+    /* IPv6 literals must be enclosed in brackets. */
+    ret = gpr_asprintf(&tmp, "[%s]:%d", host, port);
+  } else {
+    /* Ordinary non-bracketed host:port. */
+    ret = gpr_asprintf(&tmp, "%s:%d", host, port);
+  }
+  out->reset(tmp);
+  return ret;
+}
+
+namespace {
+bool DoSplitHostPort(StringView name, StringView* host, StringView* port,
+                     bool* has_port) {
+  *has_port = false;
+  if (name[0] == '[') {
+    /* Parse a bracketed host, typically an IPv6 literal. */
+    const size_t rbracket = name.find(']', 1);
+    if (rbracket == grpc_core::StringView::npos) {
+      /* Unmatched [ */
+      return false;
+    }
+    if (rbracket == name.size() - 1) {
+      /* ]<end> */
+      port->clear();
+    } else if (name[rbracket + 1] == ':') {
+      /* ]:<port?> */
+      *port = name.substr(rbracket + 2, name.size() - rbracket - 2);
+      *has_port = true;
+    } else {
+      /* ]<invalid> */
+      return false;
+    }
+    *host = name.substr(1, rbracket - 1);
+    if (host->find(':') == grpc_core::StringView::npos) {
+      /* Require all bracketed hosts to contain a colon, because a hostname or
+         IPv4 address should never use brackets. */
+      host->clear();
+      return false;
+    }
+  } else {
+    size_t colon = name.find(':');
+    if (colon != grpc_core::StringView::npos &&
+        name.find(':', colon + 1) == grpc_core::StringView::npos) {
+      /* Exactly 1 colon.  Split into host:port. */
+      *host = name.substr(0, colon);
+      *port = name.substr(colon + 1, name.size() - colon - 1);
+      *has_port = true;
+    } else {
+      /* 0 or 2+ colons.  Bare hostname or IPv6 litearal. */
+      *host = name;
+      port->clear();
+    }
+  }
+  return true;
+}
+}  // namespace
+
+bool SplitHostPort(StringView name, StringView* host, StringView* port) {
+  bool unused;
+  return DoSplitHostPort(name, host, port, &unused);
+}
+
+bool SplitHostPort(StringView name, UniquePtr<char>* host,
+                   UniquePtr<char>* port) {
+  GPR_DEBUG_ASSERT(host != nullptr && *host == nullptr);
+  GPR_DEBUG_ASSERT(port != nullptr && *port == nullptr);
+  StringView host_view;
+  StringView port_view;
+  bool has_port;
+  const bool ret = DoSplitHostPort(name, &host_view, &port_view, &has_port);
+  if (ret) {
+    // We always set the host, but port is set only when DoSplitHostPort find a
+    // port in the string, to remain backward compatible with the old
+    // gpr_split_host_port API.
+    *host = host_view.dup();
+    if (has_port) {
+      *port = port_view.dup();
+    }
+  }
+  return ret;
+}
+}  // namespace grpc_core