According to RFC1035 "[...] the total length of a domain name (i.e.,
label octets and label length octets) is restricted to 255 octets or
less."
Signed-off-by: Manuel Schölling <manuel.schoell...@gmx.de>
---
net/dns_resolver/dns_query.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/dns_resolver/dns_query.c b/net/dns_resolver/dns_query.c
index e7b6d53..5b49958 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;
--
1.7.10.4
--
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