From d4ccea4185f111970d8bb6144040caa0402720d9 Mon Sep 17 00:00:00 2001
From: Alan Conway <aconway@apache.org>
Date: Thu, 31 Jan 2008 23:14:49 +0000
Subject: Generate URLs for local host.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@617286 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/Url.cpp | 41 ++++++++++++++++++++++++++++++++++++++++-
 cpp/src/qpid/Url.h   |  8 ++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)

(limited to 'cpp/src')

diff --git a/cpp/src/qpid/Url.cpp b/cpp/src/qpid/Url.cpp
index d52fc71870..1e0e0b3603 100644
--- a/cpp/src/qpid/Url.cpp
+++ b/cpp/src/qpid/Url.cpp
@@ -16,16 +16,55 @@
  *
  */
 
-#include "Url.h"
+#include "qpid/Url.h"
+#include "qpid/Exception.h"
+#include "qpid/Msg.h"
+
 #include <sstream>
 #include <boost/spirit.hpp>
 #include <boost/spirit/actor.hpp>
 
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <errno.h>
+
 using namespace boost::spirit;
 using namespace std;
 
 namespace qpid {
 
+Url Url::getHostnameUrl(uint16_t port) {
+    char name[HOST_NAME_MAX];
+    if (::gethostname(name, sizeof(name)) != 0)
+        throw Exception(QPID_MSG("Cannot get host name: " << strError(errno)));
+    return Url(TcpAddress(name, port));
+}
+
+static const string LOCALHOST("127.0.0.1");
+
+Url Url::getIpAddressesUrl(uint16_t port) {
+    Url url;
+    int s = socket (PF_INET, SOCK_STREAM, 0);
+    for (int i=1;;i++) {
+        struct ifreq ifr;
+        ifr.ifr_ifindex = i;
+        if (::ioctl (s, SIOCGIFNAME, &ifr) < 0)
+            break;
+        /* now ifr.ifr_name is set */
+        if (::ioctl (s, SIOCGIFADDR, &ifr) < 0)
+            continue;
+        struct sockaddr_in *sin = (struct sockaddr_in *) &ifr.ifr_addr;
+        string addr(inet_ntoa(sin->sin_addr));
+        if (addr != LOCALHOST)
+            url.push_back(TcpAddress(addr, port));
+    }
+    close (s);
+    return url;
+}
+
 string Url::str() const {
     ostringstream os;
     os << *this;
diff --git a/cpp/src/qpid/Url.h b/cpp/src/qpid/Url.h
index 0cf54c493e..5cdd30399b 100644
--- a/cpp/src/qpid/Url.h
+++ b/cpp/src/qpid/Url.h
@@ -52,6 +52,14 @@ typedef boost::variant<TcpAddress> Address;
 
 /** An AMQP URL contains a list of addresses */
 struct Url : public std::vector<Address> {
+
+    /** Url with the hostname as returned by gethostname(2)  */
+    static Url getHostnameUrl(uint16_t port);
+
+    /** Url with local IP address(es), may be more than one address
+     * on a multi-homed host. */
+    static Url getIpAddressesUrl(uint16_t port);
+
     struct InvalidUrl : public Exception {
         InvalidUrl(const std::string& s) : Exception(s) {}
     };
-- 
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