diff options
Diffstat (limited to 'tcpd/tcpd.c')
| -rw-r--r-- | tcpd/tcpd.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tcpd/tcpd.c b/tcpd/tcpd.c index 0fd0398..7cd3afa 100644 --- a/tcpd/tcpd.c +++ b/tcpd/tcpd.c @@ -1605,9 +1605,13 @@ static void docheckblocklist(struct blocklist_s *p, const char *nameptr) int found; unsigned char query_A[] = {RFC1035_TYPE_A, 0}, query_A_and_TXT[] = {RFC1035_TYPE_A, RFC1035_TYPE_TXT, 0}; + size_t l=strlen(nameptr); - hostname[0]=0; - strncat(hostname, nameptr, RFC1035_MAXNAMESIZE); + if (l > RFC1035_MAXNAMESIZE) + l=RFC1035_MAXNAMESIZE; + + memcpy(hostname, nameptr, l); + hostname[l]=0; if (!varname) varname="BLOCK"; |