<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"><meta name="Generator" content="Microsoft Word 14 (filtered medium)"><style></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1">Hello Thiago Macieira Please read my response for above subject. First of all, don't use TCP.<Elvis>For different machine I need use TCP. Second, please read up on the recent case of exploit on Jeep cars. Hint: it was caused by dbus-daemon used on TCP. Third, 123456 is not a valid port number. That's probably why getaddrinfo is failing.<Elvis>This port 123456 is just one example. I Know getaddrinfo ai_flags usage for network socket. You know Uclibc define this 2 flags# define AI_PASSIVE 0x0001 /* Socket address is intended for `bind'. */# define AI_ADDRCONFIG 0x0020 /* Use configuration of this host to choose returned address type.. */ My concern, this file you already define AI_ADDRCONFIG = 0 not Linux standard in dbus-sysdeps-unix.c source code line 98.<pre> </pre><pre>hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE; ==== > actually if AL_ADDRCONFIG is not 0x0020 but 0, this ai_flags still is AI_PASSIVE.</pre><pre> </pre><pre>If my understanding is wrong, please correct me.</pre><pre> </pre><pre>By the way, suppose if all the linux interface is not UP maybe not created at all. I think this getaddrinfo MUST failed with EAI_NONAME = -2.</pre><pre> </pre><pre> </pre><pre>Thanks</pre><pre>Elvis </pre> </div></body></html>