diff options
Diffstat (limited to 'net/dns_resolver/dns_query.c')
| -rw-r--r-- | net/dns_resolver/dns_query.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/dns_resolver/dns_query.c b/net/dns_resolver/dns_query.c index e7b6d53eef88..9acec61f5433 100644 --- a/net/dns_resolver/dns_query.c +++ b/net/dns_resolver/dns_query.c @@ -93,8 +93,8 @@ int dns_query(const char *type, const char *name, size_t namelen, } if (!namelen) - namelen = strlen(name); - if (namelen < 3) + namelen = strnlen(name, 256); + if (namelen < 3 || namelen > 255) return -EINVAL; desclen += namelen + 1; @@ -149,7 +149,9 @@ int dns_query(const char *type, const char *name, size_t namelen, if (!*_result) goto put; - memcpy(*_result, upayload->data, len + 1); + memcpy(*_result, upayload->data, len); + *_result[len] = '\0'; + if (_expiry) *_expiry = rkey->expiry; |