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r13903@catbus: nickm | 2007-07-25 18:03:56 -0400

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Make buffer large enough to hold ip6.arpa addresses.  This code was not actually used yet, so no user-visible bug existed. (Based on patch by croup.)


svn:r10928
This commit is contained in:
Nick Mathewson 2007-07-25 22:56:47 +00:00
parent a66f259354
commit 2305c2c7be
1 changed files with 4 additions and 3 deletions
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7
src/or/eventdns.c
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@ -2308,7 +2308,8 @@ int evdns_resolve_reverse(struct in_addr *in, int flags, evdns_callback_type cal
}
int evdns_resolve_reverse_ipv6(struct in6_addr *in, int flags, evdns_callback_type callback, void *ptr) {
char buf[64];
/* 32 nybbles, 32 periods, "ip6.arpa", NUL. */
char buf[73];
char *cp;
struct request *req;
int i;
@ -2321,8 +2322,8 @@ int evdns_resolve_reverse_ipv6(struct in6_addr *in, int flags, evdns_callback_ty
*cp++ = "0123456789abcdef"[byte >> 4];
*cp++ = '.';
}
assert(cp + strlen(".ip6.arpa") < buf+sizeof(buf));
memcpy(cp, ".ip6.arpa", strlen(".ip6.arpa")+1);
assert(cp + strlen("ip6.arpa") < buf+sizeof(buf));
memcpy(cp, "ip6.arpa", strlen("ip6.arpa")+1);
log(EVDNS_LOG_DEBUG, "Resolve requested for %s (reverse)", buf);
req = request_new(TYPE_PTR, buf, flags, callback, ptr);
if (!req) return 1;