diff options
| -rw-r--r-- | src/edns0.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/src/edns0.c b/src/edns0.c index 7f7d5d8..800c51f 100644 --- a/src/edns0.c +++ b/src/edns0.c @@ -191,16 +191,13 @@ size_t add_pseudoheader(struct dns_header *header, size_t plen, unsigned char *l if (!(p = skip_questions(header, plen)) || !(p = skip_section(p, ntohs(header->ancount) + ntohs(header->nscount) + ntohs(header->arcount), - header, plen))) - { - free(buff); - return plen; - } - if (p + 11 > limit) - { - free(buff); - return plen; /* Too big */ - } + header, plen)) || + p + 11 > limit) + { + free(buff); + return plen; /* bad packet */ + } + *p++ = 0; /* empty name */ PUTSHORT(T_OPT, p); PUTSHORT(udp_sz, p); /* max packet length, 512 if not given in EDNS0 header */ |