diff options
Diffstat (limited to 'ext/socket/raddrinfo.c')
| -rw-r--r-- | ext/socket/raddrinfo.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/ext/socket/raddrinfo.c b/ext/socket/raddrinfo.c index 1d2b9f953e..e13684ac74 100644 --- a/ext/socket/raddrinfo.c +++ b/ext/socket/raddrinfo.c @@ -617,7 +617,8 @@ make_hostent_internal(struct hostent_arg *arg) } rb_ary_push(ary, rb_str_new2(hostp)); - if (addr->ai_canonname && (h = gethostbyname(addr->ai_canonname))) { + if (addr->ai_canonname && strlen(addr->ai_canonname) < NI_MAXHOST && + (h = gethostbyname(addr->ai_canonname))) { names = rb_ary_new(); if (h->h_aliases != NULL) { for (pch = h->h_aliases; *pch; pch++) { |