https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=099d5a9a57838e519bfc1fb7f9c1dc8be002e6b2
commit 099d5a9a57838e519bfc1fb7f9c1dc8be002e6b2 Author: Anton Lavrentiev via Cygwin-patches <[email protected]> Date: Tue Jan 18 19:07:55 2022 -0500 Cygwin: resolver: A few fixes for cygwin_query(), part 2 Make sure Windows ResultSet is free'd when dn_comp failed internally Diff: --- winsup/cygwin/libc/minires-os-if.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/winsup/cygwin/libc/minires-os-if.c b/winsup/cygwin/libc/minires-os-if.c index 5da1c0c55..c6fde776a 100644 --- a/winsup/cygwin/libc/minires-os-if.c +++ b/winsup/cygwin/libc/minires-os-if.c @@ -246,8 +246,7 @@ static int cygwin_query(res_state statp, const char * DomName, int Class, int Ty statp->res_h_errno = NO_RECOVERY; break; } - len = -1; - goto done; + return -1; } ptr = AnsPtr + HFIXEDSZ; /* Skip header */ @@ -293,10 +292,12 @@ static int cygwin_query(res_state statp, const char * DomName, int Class, int Ty rr = rr->pNext; } - DnsFree(pQueryResultsSet, DnsFreeRecordList); - len = ptr - AnsPtr; + done: + + DnsFree(pQueryResultsSet, DnsFreeRecordList); + if (HFIXEDSZ <= AnsLength) { ptr = AnsPtr; PUTSHORT(Id, ptr);
