Mercurial > hg > nginx-quic
view auto/cc/name @ 4658:c92289afb5be stable-1.2
Merge of r4611, r4620: resolver fixes.
*) Fixed segmentation fault in ngx_resolver_create_name_query().
If name passed for resolution was { 0, NULL } (e.g. as a result
of name server returning CNAME pointing to ".") pointer wrapped
to (void *) -1 resulting in segmentation fault on an attempt to
dereference it.
Reported by Lanshun Zhou.
*) Resolver: protection from duplicate responses.
If we already had CNAME in resolver node (i.e. rn->cnlen and rn->u.cname
set), and got additional response with A record, it resulted in rn->cnlen
set and rn->u.cname overwritten by rn->u.addr (or rn->u.addrs), causing
segmentation fault later in ngx_resolver_free_node() on an attempt to free
overwritten rn->u.cname. The opposite (i.e. CNAME got after A) might cause
similar problems as well.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 04 Jun 2012 10:15:55 +0000 |
parents | 4871a7dc12a9 |
children | 1f908d2dde8d |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. if [ "$NGX_PLATFORM" != win32 ]; then ngx_feature="C compiler" ngx_feature_name= ngx_feature_run=yes ngx_feature_incs= ngx_feature_path= ngx_feature_libs= ngx_feature_test= . auto/feature if [ $ngx_found = no ]; then echo echo $0: error: C compiler $CC is not found echo exit 1 fi fi if [ "$CC" = cl ]; then if `$NGX_WINE $CC -v 2>&1 \ | grep '^Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16' \ >/dev/null 2>&1`; then NGX_CC_NAME=msvc10 echo " + using Microsoft Visual C++ 10 compiler" else if `$NGX_WINE $CC -v 2>&1 \ | grep '^Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14' \ >/dev/null 2>&1`; then NGX_CC_NAME=msvc8 echo " + using Microsoft Visual C++ 8 compiler" else if `$NGX_WINE $CC -v 2>&1 \ | grep '^Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 13' \ >/dev/null 2>&1`; then NGX_CC_NAME=msvc7 echo " + using Microsoft Visual C++ 7 compiler" else NGX_CC_NAME=msvc echo " + using Microsoft Visual C++ compiler" fi fi fi else if [ "$CC" = wcl386 ]; then NGX_CC_NAME=owc echo " + using Open Watcom C compiler" else if [ "$CC" = bcc32 ]; then NGX_CC_NAME=bcc echo " + using Borland C++ compiler" else if `$CC -V 2>&1 | grep '^Intel(R) C' >/dev/null 2>&1`; then NGX_CC_NAME=icc echo " + using Intel C++ compiler" else if `$CC -v 2>&1 | grep 'gcc version' >/dev/null 2>&1`; then NGX_CC_NAME=gcc echo " + using GNU C compiler" else if `$CC -V 2>&1 | grep 'Sun C' >/dev/null 2>&1`; then NGX_CC_NAME=sunc echo " + using Sun C compiler" else if `$CC -V 2>&1 | grep '^Compaq C' >/dev/null 2>&1`; then NGX_CC_NAME=ccc echo " + using Compaq C compiler" else if `$CC -V 2>&1 | grep '^aCC: ' >/dev/null 2>&1`; then NGX_CC_NAME=acc echo " + using HP aC++ compiler" else NGX_CC_NAME=unknown fi # acc fi # ccc fi # sunc fi # icc fi # gcc fi # bcc fi # owc fi # msvc