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resolved: make sure we alway initialize *start in dns_packet_append_type_window()

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This commit is contained in:
Lennart Poettering 2015-07-23 04:54:35 +02:00
parent 6aafa9483d
commit 6fa919016a
1 changed files with 12 additions and 12 deletions
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24
src/resolve/resolved-dns-packet.c
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@ -509,22 +509,22 @@ static int dns_packet_append_type_window(DnsPacket *p, uint8_t window, uint8_t l
assert(p);
assert(types);
if (length == 0)
return 0;
saved_size = p->size;
r = dns_packet_append_uint8(p, window, NULL);
if (r < 0)
goto fail;
if (length != 0) {
r = dns_packet_append_uint8(p, length, NULL);
if (r < 0)
goto fail;
r = dns_packet_append_uint8(p, window, NULL);
if (r < 0)
goto fail;
r = dns_packet_append_blob(p, types, length, NULL);
if (r < 0)
goto fail;
r = dns_packet_append_uint8(p, length, NULL);
if (r < 0)
goto fail;
r = dns_packet_append_blob(p, types, length, NULL);
if (r < 0)
goto fail;
}
if (start)
*start = saved_size;