diff options
Diffstat (limited to 'src/network/lookup_name.c')
| -rw-r--r-- | src/network/lookup_name.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/network/lookup_name.c b/src/network/lookup_name.c index 5f6867cb..35218185 100644 --- a/src/network/lookup_name.c +++ b/src/network/lookup_name.c @@ -109,15 +109,15 @@ struct dpc_ctx { #define RR_CNAME 5 #define RR_AAAA 28 -#define ABUF_SIZE 768 +#define ABUF_SIZE 4800 -static int dns_parse_callback(void *c, int rr, const void *data, int len, const void *packet) +static int dns_parse_callback(void *c, int rr, const void *data, int len, const void *packet, int plen) { char tmp[256]; int family; struct dpc_ctx *ctx = c; if (rr == RR_CNAME) { - if (__dn_expand(packet, (const unsigned char *)packet + ABUF_SIZE, + if (__dn_expand(packet, (const unsigned char *)packet + plen, data, tmp, sizeof tmp) > 0 && is_valid_hostname(tmp)) strcpy(ctx->canon, tmp); return 0; @@ -179,6 +179,7 @@ static int name_from_dns(struct address buf[static MAXADDRS], char canon[static for (i=nq-1; i>=0; i--) { ctx.rrtype = qtypes[i]; + if (alens[i] > sizeof(abuf[i])) alens[i] = sizeof abuf[i]; __dns_parse(abuf[i], alens[i], dns_parse_callback, &ctx); } |