diff options
| -rw-r--r-- | sysdeps/posix/getaddrinfo.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c index 3cbd0334dd..3121d3bb65 100644 --- a/sysdeps/posix/getaddrinfo.c +++ b/sysdeps/posix/getaddrinfo.c @@ -2435,7 +2435,11 @@ getaddrinfo (const char *name, const char *service, return EAI_FAMILY; } - if (naddrs > 1) + /* We don't want to sort the localhost addresses used for passive + binding; if the caller asked for both address types, we want to + return IPv6+IPv4 before IPv4, because if we bind to IPv4 first, + the IPv6 bind will fail. */ + if (naddrs > 1 && (name || (hints->ai_flags & AI_PASSIVE) == 0)) { /* Read the config file. */ __libc_once_define (static, once); |