From: Florian Weimer Date: Fri, 7 Feb 2020 17:48:04 +0000 (+0100) Subject: resolv: Fix CNAME chaining in resolv/tst-resolv-ai_idn-common.c X-Git-Tag: glibc-2.32~740 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d4e209d35564eecdc006ab9f5b10bc8494c6f1f9;p=thirdparty%2Fglibc.git resolv: Fix CNAME chaining in resolv/tst-resolv-ai_idn-common.c The second CNAME record optionally generated by the response function used the question name, not the redirected name from the first CNAME. This breaks the chain and results in failures of these IDNA tests if CNAME owner names are checked as expected (which the current implementation does not do). --- diff --git a/resolv/tst-resolv-ai_idn-common.c b/resolv/tst-resolv-ai_idn-common.c index 9e8ed7611c6..97eb617cfa6 100644 --- a/resolv/tst-resolv-ai_idn-common.c +++ b/resolv/tst-resolv-ai_idn-common.c @@ -219,8 +219,9 @@ response (const struct resolv_response_context *ctx, } if (with_idn_cname) { + const char *previous_name = next_name; next_name = ANDERES_NAEMCHEN_IDNA ".example"; - resolv_response_open_record (b, qname, C_IN, T_CNAME, 0); + resolv_response_open_record (b, previous_name, C_IN, T_CNAME, 0); resolv_response_add_name (b, next_name); resolv_response_close_record (b); }