commit 62a321b12d0e397af88fa422db65079332f971dc Author: Florian Weimer Date: Fri Jun 24 18:16:41 2022 +0200 support: Change non-address output format of support_format_dns_packet It makes sense to include the owner name (LHS) and record type in the output, so that they can be checked for correctness. Reviewed-by: Carlos O'Donell diff --git a/support/support_format_dns_packet.c b/support/support_format_dns_packet.c index 1170eafb0f008fee..ef862bc4c8d14af0 100644 --- a/support/support_format_dns_packet.c +++ b/support/support_format_dns_packet.c @@ -101,6 +101,17 @@ extract_name (struct in_buffer full, struct in_buffer *in, struct dname *value) return true; } +static void +extract_name_data (struct in_buffer full, struct in_buffer *rdata, + const struct dname *owner, const char *typename, FILE *out) +{ + struct dname name; + if (extract_name (full, rdata, &name)) + fprintf (out, "data: %s %s %s\n", owner->name, typename, name.name); + else + fprintf (out, "error: malformed CNAME/PTR record\n"); +} + char * support_format_dns_packet (const unsigned char *buffer, size_t length) { @@ -206,14 +217,11 @@ support_format_dns_packet (const unsigned char *buffer, size_t length) } break; case T_CNAME: + extract_name_data (full, &rdata, &rname, "CNAME", mem.out); + break; case T_PTR: - { - struct dname name; - if (extract_name (full, &rdata, &name)) - fprintf (mem.out, "name: %s\n", name.name); - else - fprintf (mem.out, "error: malformed CNAME/PTR record\n"); - } + extract_name_data (full, &rdata, &rname, "PTR", mem.out); + break; } } diff --git a/support/tst-support_format_dns_packet.c b/support/tst-support_format_dns_packet.c index b1135eebc6c02d55..35f475fe86177772 100644 --- a/support/tst-support_format_dns_packet.c +++ b/support/tst-support_format_dns_packet.c @@ -85,8 +85,8 @@ test_multiple_cnames (void) "\xc0\x00\x02\x01"; check_packet (packet, sizeof (packet) - 1, __func__, "name: www.example\n" - "name: www1.example\n" - "name: www2.example\n" + "data: www.example CNAME www1.example\n" + "data: www1.example CNAME www2.example\n" "address: 192.0.2.1\n"); }