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pullup from BIND 8

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1336.   [bug]           libbind: gethostans() could get out of sync parsing
                        the response if there was a very long CNAME chain.
This commit is contained in:
Mark Andrews 2002-06-28 05:00:55 +00:00
parent 70f8c70cdd
commit 446ff1959c
2 changed files with 6 additions and 3 deletions
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3
CHANGES
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@ -1,3 +1,6 @@
1336. [bug] libbind: gethostans() could get out of sync parsing
the response if there was a very long CNAME chain.
1335. [bug] Options should apply to the internal _bind view.
1334. [port] Handle ECONNRESET from sendmsg() [unix].

6
lib/bind/irs/dns_ho.c
View file

@ -52,7 +52,7 @@
/* BIND Id: gethnamaddr.c,v 8.15 1996/05/22 04:56:30 vixie Exp $ */
#if defined(LIBC_SCCS) && !defined(lint)
static const char rcsid[] = "$Id: dns_ho.c,v 1.8 2002/06/03 00:34:55 marka Exp $";
static const char rcsid[] = "$Id: dns_ho.c,v 1.9 2002/06/28 05:00:55 marka Exp $";
#endif /* LIBC_SCCS and not lint */
/* Imports. */
@ -1195,8 +1195,6 @@ gethostans(struct irs_ho *this,
eor = cp + n;
if ((qtype == T_A || qtype == T_AAAA || qtype == ns_t_a6 ||
qtype == T_ANY) && type == T_CNAME) {
if (ap >= &pvt->host_aliases[MAXALIASES-1])
continue;
n = dn_expand(ansbuf, eor, cp, tbuf, sizeof tbuf);
if (n < 0 || !maybe_ok(pvt->res, tbuf, name_ok)) {
had_error++;
@ -1204,6 +1202,8 @@ gethostans(struct irs_ho *this,
}
cp += n;
/* Store alias. */
if (ap >= &pvt->host_aliases[MAXALIASES-1])
continue;
*ap++ = bp;
n = strlen(bp) + 1; /* for the \0 */
bp += n;