Increase the buffer size used for the host names in wxIPaddress.

This avoids failing to set the host name if the system /etc/hosts file has any
host names that wouldn't fit in our buffer: at least under Linux/glibc,
gethostname_r() returns error if any such names exist even if we don't ask for
them.

Closes #16641.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78506 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/sckaddr.cpp

@@ -142,7 +142,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxUNIXaddress, wxSockAddress)
         }
     };
 #else
-    typedef char wxGethostBuf[1024];
+    typedef char wxGethostBuf[4096];
 #endif
 
 #ifdef HAVE_FUNC_GETSERVBYNAME_R_4
@@ -154,7 +154,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxUNIXaddress, wxSockAddress)
         }
     };
 #else
-    typedef char wxGetservBuf[1024];
+    typedef char wxGetservBuf[4096];
 #endif
 
 #if defined(wxHAS_MT_SAFE_GETBY_FUNCS) || !wxUSE_THREADS