diff options
| -rw-r--r-- | erts/configure.in | 58 | ||||
| -rw-r--r-- | erts/emulator/drivers/common/inet_drv.c | 21 |
2 files changed, 79 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in index cb1b00b8b1..e9736ab6fe 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -1949,6 +1949,64 @@ AC_CHECK_FUNCS([openpty]) AC_CHECK_HEADERS(net/if_dl.h ifaddrs.h netpacket/packet.h) AC_CHECK_FUNCS([getifaddrs]) +dnl Checks for variables in6addr_any and in6addr_loopback, +dnl +dnl They normally declared by netinet/in.h, according to POSIX, +dnl but not on Windows 7 (Windows SDK 7.1). I would have liked +dnl to just write AC_CHECK_DECL([in6addr_any], ...) but if doing so, +dnl the configure check fails erroneously on Linux with the error +dnl "cannot convert to a pointer type", on a line looking like +dnl "char *p = (char *) in6addr_any;", so work around that +dnl with some more code. +AC_CACHE_CHECK( + [whether in6addr_any is declared], + [erts_cv_have_in6addr_any], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[ + #include <sys/types.h> + #include <sys/socket.h> + #include <netinet/in.h> + ]], + [[printf("%d", in6addr_any.s6_addr[16]);]] + )], + [erts_cv_have_in6addr_any=yes], + [erts_cv_have_in6addr_any=no] + )] +) + +case "$erts_cv_have_in6addr_any" in + yes) + AC_DEFINE([HAVE_IN6ADDR_ANY], [1], + [Define to 1 if you have the variable in6addr_any declared.]) +esac + +AC_CACHE_CHECK( + [whether in6addr_loopback is declared], + [erts_cv_have_in6addr_loopback], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[ + #include <sys/types.h> + #include <sys/socket.h> + #include <netinet/in.h> + ]], + [[printf("%d", in6addr_loopback.s6_addr[16]);]] + )], + [erts_cv_have_in6addr_loopback=yes], + [erts_cv_have_in6addr_loopback=no] + )] +) + +case "$erts_cv_have_in6addr_loopback" in + yes) + AC_DEFINE([HAVE_IN6ADDR_LOOPBACK], [1], + [Define to 1 if you have the variable in6addr_loopback declared.]) +esac + +AC_CHECK_DECLS([IN6ADDR_ANY_INIT, IN6ADDR_LOOPBACK_INIT], [], [], + [#include <netinet/in.h>]) + dnl ---------------------------------------------------------------------- dnl Checks for features/quirks in the system that affects Erlang. dnl ---------------------------------------------------------------------- diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index 9f84329dd8..7f3b3323f5 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -1228,6 +1228,27 @@ struct erl_drv_entry inet_driver_entry = NULL, }; +#if HAVE_IN6 +# if ! defined(HAVE_IN6ADDR_ANY) || ! HAVE_IN6ADDR_ANY +# if HAVE_DECL_IN6ADDR_ANY_INIT +static const struct in6_addr in6addr_any = { { IN6ADDR_ANY_INIT } }; +# else +static const struct in6_addr in6addr_any = + { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }; +# endif /* HAVE_IN6ADDR_ANY_INIT */ +# endif /* ! HAVE_DECL_IN6ADDR_ANY */ + +# if ! defined(HAVE_IN6ADDR_LOOPBACK) || ! HAVE_IN6ADDR_LOOPBACK +# if HAVE_DECL_IN6ADDR_LOOPBACK_INIT +static const struct in6_addr in6addr_loopback = + { { IN6ADDR_LOOPBACK_INIT } }; +# else +static const struct in6_addr in6addr_loopback = + { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }; +# endif /* HAVE_IN6ADDR_LOOPBACk_INIT */ +# endif /* ! HAVE_DECL_IN6ADDR_LOOPBACK */ +#endif /* HAVE_IN6 */ + /* XXX: is this a driver interface function ??? */ void erl_exit(int n, char*, ...); |