> > 1. getaddrinfo is thread-safe. And not all OS provide those > > functions like gethostbyname_r > > > > 2. getaddrinfo resovle one name to multiaddresses, especially a > > name with both IPv4 addresses, and IPv6 addresses. > > Just as a side note. getaddrinfo is only supported on Windows XP and > above, no 95/98/Me/NT/2000.
yes thats true! The implementation should use gethostbyname if getaddrinfo is not supported. Actually its supported on some later service packs. And I guess the implementation would have to resort to finding the existence og getaddrinfo dynamically (via LoadLibrary and GetProcAddress on ws2_32.dll) and resort to gethostbyname if it's not found. gethostbyname is thread safe in winsock as one structure is allocated per thread. I don't know about the support for getaddrinfo on other platforms or the existence of threadsafe versions. Regards /Michel _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
