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authorLennart Poettering <lennart@poettering.net>2015-07-23 04:54:35 +0200
committerLennart Poettering <lennart@poettering.net>2015-07-23 04:54:35 +0200
commit6fa919016a321b89e59363da92d4cf8ec5e45f8b (patch)
treeceece85347c1dbc4966c2f04295a23b17ddb2508
parent6aafa9483d167f55a50e01f4dc5984866f12c8ec (diff)
resolved: make sure we alway initialize *start in dns_packet_append_type_window()
-rw-r--r--src/resolve/resolved-dns-packet.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c
index b1cde4ab35..12cd524c40 100644
--- a/src/resolve/resolved-dns-packet.c
+++ b/src/resolve/resolved-dns-packet.c
@@ -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;