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| author | Samuel Ortiz <sameo@linux.intel.com> | 2010-09-24 20:42:31 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-09-24 20:42:31 +0200 |
| commit | 6589d555200e06835d5a8eb38fb87dc1b9ae6bf1 (patch) | |
| tree | 2c5475509bff3b3af4125d4581298ca6f4bf5755 /plugins | |
| parent | 4990defa7cdf73d79660a12af31620f67a2ddbf1 (diff) | |
| download | connman-6589d555200e06835d5a8eb38fb87dc1b9ae6bf1.tar.gz connman-6589d555200e06835d5a8eb38fb87dc1b9ae6bf1.tar.bz2 connman-6589d555200e06835d5a8eb38fb87dc1b9ae6bf1.zip | |
Do not access the DNS request buffer if it's NULL
Diffstat (limited to 'plugins')
| -rw-r--r-- | plugins/dnsproxy.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/plugins/dnsproxy.c b/plugins/dnsproxy.c index 63c88b98..ac184900 100644 --- a/plugins/dnsproxy.c +++ b/plugins/dnsproxy.c @@ -482,11 +482,14 @@ static gboolean tcp_server_event(GIOChannel *channel, GIOCondition condition, for (list = request_list; list; list = list->next) { struct request_data *req = list->data; - struct domain_hdr *hdr = (void *) (req->request + 2); + struct domain_hdr *hdr; if (req->protocol == IPPROTO_UDP) continue; + if (req->request == NULL) + continue; + /* * If we're not waiting for any further response * from another name server, then we send an error @@ -495,6 +498,7 @@ static gboolean tcp_server_event(GIOChannel *channel, GIOCondition condition, if (req->numserv && --(req->numserv)) continue; + hdr = (void *) (req->request + 2); hdr->id = req->srcid; send_response(req->client_sk, req->request, req->request_len, NULL, 0, IPPROTO_TCP); |