Return error if an invalid connection string is used

This patch reintroduces the behaviour that if a tcp:// or ipc:// connection
string which is invalid is passed to xs_connect, then an error is reported,
instead of asserting at connection time

8 files changed, 37 insertions, 21 deletions

diff --git a/doc/xs_bind.txt b/doc/xs_bind.txt
index 3472f04..c6f472c 100644
--- a/doc/xs_bind.txt
+++ b/doc/xs_bind.txt
@@ -46,6 +46,8 @@ ERRORS
 ------
 *EINVAL*::
 The endpoint supplied is invalid.
+*ENAMETOOLONG*::
+The supplied name was too long.
 *EPROTONOSUPPORT*::
 The requested 'transport' protocol is not supported.
 *ENOCOMPATPROTO*::
diff --git a/doc/xs_connect.txt b/doc/xs_connect.txt
index 02597da..00625d3 100644
--- a/doc/xs_connect.txt
+++ b/doc/xs_connect.txt
@@ -50,6 +50,8 @@ ERRORS
 ------
 *EINVAL*::
 The endpoint supplied is invalid.
+*ENAMETOOLONG*::
+The supplied name was too long.
 *EPROTONOSUPPORT*::
 The requested 'transport' protocol is not supported.
 *ENOCOMPATPROTO*::
diff --git a/src/ipc_connecter.cpp b/src/ipc_connecter.cpp
index 0722532..f620fd1 100644
--- a/src/ipc_connecter.cpp
+++ b/src/ipc_connecter.cpp
@@ -39,7 +39,7 @@
 
 xs::ipc_connecter_t::ipc_connecter_t (class io_thread_t *io_thread_,
       class session_base_t *session_, const options_t &options_,
-      const char *address_, bool wait_) :
+      bool wait_) :
     own_t (io_thread_, options_),
     io_object_t (io_thread_),
     s (retired_fd),
@@ -49,10 +49,6 @@ xs::ipc_connecter_t::ipc_connecter_t (class io_thread_t *io_thread_,
     current_reconnect_ivl(options.reconnect_ivl),
     reconnect_timer (NULL)
 {
-    //  TODO: set_addess should be called separately, so that the error
-    //  can be propagated.
-    int rc = set_address (address_);
-    xs_assert (rc == 0);
 }
 
 xs::ipc_connecter_t::~ipc_connecter_t ()
diff --git a/src/ipc_connecter.hpp b/src/ipc_connecter.hpp
index e6c419d..a642266 100644
--- a/src/ipc_connecter.hpp
+++ b/src/ipc_connecter.hpp
@@ -45,9 +45,12 @@ namespace xs
         //  connection process.
         ipc_connecter_t (xs::io_thread_t *io_thread_,
             xs::session_base_t *session_, const options_t &options_,
-            const char *address_, bool delay_);
+            bool delay_);
         ~ipc_connecter_t ();
 
+        //  Set address to connect to.
+        int set_address (const char *addr_);
+
     private:
 
         //  ID of the timer used to delay the reconnection.
@@ -72,9 +75,6 @@ namespace xs
         //  Returns the currently used interval
         int get_new_reconnect_ivl ();
 
-        //  Set address to connect to.
-        int set_address (const char *addr_);
-
         //  Open IPC connecting socket. Returns -1 in case of error,
         //  0 if connect was successfull immediately. Returns -1 with
         //  EAGAIN errno if async connect was launched.
diff --git a/src/session_base.cpp b/src/session_base.cpp
index 35c4a4e..48d8811 100644
--- a/src/session_base.cpp
+++ b/src/session_base.cpp
@@ -422,8 +422,10 @@ void xs::session_base_t::start_connecting (bool wait_)
 
     if (protocol == "tcp") {
         tcp_connecter_t *connecter = new (std::nothrow) tcp_connecter_t (
-            thread, this, options, address.c_str (), wait_);
+            thread, this, options, wait_);
         alloc_assert (connecter);
+        int rc = connecter->set_address (address.c_str());
+        errno_assert (rc == 0);
         launch_child (connecter);
         return;
     }
@@ -431,8 +433,10 @@ void xs::session_base_t::start_connecting (bool wait_)
 #if !defined XS_HAVE_WINDOWS && !defined XS_HAVE_OPENVMS
     if (protocol == "ipc") {
         ipc_connecter_t *connecter = new (std::nothrow) ipc_connecter_t (
-            thread, this, options, address.c_str (), wait_);
+            thread, this, options, wait_);
         alloc_assert (connecter);
+        int rc = connecter->set_address (address.c_str());
+        errno_assert (rc == 0);
         launch_child (connecter);
         return;
     }
diff --git a/src/socket_base.cpp b/src/socket_base.cpp
index ec5c8bd..8ee8bd3 100644
--- a/src/socket_base.cpp
+++ b/src/socket_base.cpp
@@ -39,6 +39,7 @@
 #include "tcp_listener.hpp"
 #include "ipc_listener.hpp"
 #include "tcp_connecter.hpp"
+#include "ipc_connecter.hpp"
 #include "io_thread.hpp"
 #include "session_base.hpp"
 #include "config.hpp"
@@ -491,6 +492,22 @@ int xs::socket_base_t::connect (const char *addr_)
     io_thread_t *thread = choose_io_thread (options.affinity);
     xs_assert (thread);
 
+    if (protocol == "tcp") {
+        tcp_connecter_t connecter (thread, NULL, options, false);
+        int rc = connecter.set_address (address.c_str());
+        if (rc != 0) {
+            return -1;
+        }
+    }
+
+    if (protocol == "ipc") {
+        ipc_connecter_t connecter (thread, NULL, options, false);
+        int rc = connecter.set_address (address.c_str());
+        if (rc != 0) {
+            return -1;
+        }
+    }
+
     //  Create session.
     session_base_t *session = session_base_t::create (thread, true, this,
         options, protocol.c_str (), address.c_str ());
diff --git a/src/tcp_connecter.cpp b/src/tcp_connecter.cpp
index 5ae01e7..c605b8f 100644
--- a/src/tcp_connecter.cpp
+++ b/src/tcp_connecter.cpp
@@ -47,8 +47,7 @@
 #endif
 
 xs::tcp_connecter_t::tcp_connecter_t (class io_thread_t *io_thread_,
-      class session_base_t *session_, const options_t &options_,
-      const char *address_, bool wait_) :
+      class session_base_t *session_, const options_t &options_, bool wait_) :
     own_t (io_thread_, options_),
     io_object_t (io_thread_),
     s (retired_fd),
@@ -58,10 +57,6 @@ xs::tcp_connecter_t::tcp_connecter_t (class io_thread_t *io_thread_,
     current_reconnect_ivl(options.reconnect_ivl),
     reconnect_timer (NULL)
 {
-    //  TODO: set_addess should be called separately, so that the error
-    //  can be propagated.
-    int rc = set_address (address_);
-    errno_assert (rc == 0);
 }
 
 xs::tcp_connecter_t::~tcp_connecter_t ()
diff --git a/src/tcp_connecter.hpp b/src/tcp_connecter.hpp
index 26a0151..ee8f381 100644
--- a/src/tcp_connecter.hpp
+++ b/src/tcp_connecter.hpp
@@ -42,9 +42,12 @@ namespace xs
         //  connection process.
         tcp_connecter_t (xs::io_thread_t *io_thread_,
             xs::session_base_t *session_, const options_t &options_,
-            const char *address_, bool delay_);
+            bool delay_);
         ~tcp_connecter_t ();
 
+        //  Set address to connect to.
+        int set_address (const char *addr_);
+
     private:
 
         //  Handlers for incoming commands.
@@ -66,9 +69,6 @@ namespace xs
         //  Returns the currently used interval
         int get_new_reconnect_ivl ();
 
-        //  Set address to connect to.
-        int set_address (const char *addr_);
-
         //  Open TCP connecting socket. Returns -1 in case of error,
         //  0 if connect was successfull immediately. Returns -1 with
         //  EAGAIN errno if async connect was launched.