X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-core%2Fdns.c;h=c545c00ea33c19f4301974a3debc7b32d52a9bac;hb=0cbaf99fc5eea82006dbc07f6c561e5d6d9cefba;hp=b91ccd0b84dd671eeb0eb413d4fba1f63e11dac7;hpb=f6712902a92eb82b6c8d7e7fd0980a20a716fa0d;p=catta diff --git a/avahi-core/dns.c b/avahi-core/dns.c index b91ccd0..c545c00 100644 --- a/avahi-core/dns.c +++ b/avahi-core/dns.c @@ -23,13 +23,13 @@ #include #endif -#include - #include #include #include #include +#include + #include #include #include @@ -322,7 +322,6 @@ int avahi_dns_packet_check_valid_multicast(AvahiDnsPacket *p) { return 0; } - int avahi_dns_packet_is_query(AvahiDnsPacket *p) { assert(p); @@ -621,6 +620,9 @@ AvahiRecord* avahi_dns_packet_consume_record(AvahiDnsPacket *p, int *ret_cache_f if (parse_rdata(p, r, rdlength) < 0) goto fail; + + if (!avahi_record_is_valid(r)) + goto fail; return r; @@ -634,6 +636,7 @@ fail: AvahiKey* avahi_dns_packet_consume_key(AvahiDnsPacket *p, int *ret_unicast_response) { char name[256]; uint16_t type, class; + AvahiKey *k; assert(p); @@ -647,7 +650,15 @@ AvahiKey* avahi_dns_packet_consume_key(AvahiDnsPacket *p, int *ret_unicast_respo class &= ~AVAHI_DNS_UNICAST_RESPONSE; - return avahi_key_new(name, class, type); + if (!(k = avahi_key_new(name, class, type))) + return NULL; + + if (!avahi_key_is_valid(k)) { + avahi_key_unref(k); + return NULL; + } + + return k; } uint8_t* avahi_dns_packet_append_key(AvahiDnsPacket *p, AvahiKey *k, int unicast_response) {