view auto/lib/zlib/conf @ 7667:1ece2ac2555a

OCSP: fixed use-after-free on error. When validating second and further certificates, ssl callback could be called twice to report the error. After the first call client connection is terminated and its memory is released. Prior to the second call and in it released connection memory is accessed. Errors triggering this behavior: - failure to create the request - failure to start resolving OCSP responder name - failure to start connecting to the OCSP responder The fix is to rearrange the code to eliminate the second call.
author Roman Arutyunyan <arut@nginx.com>
date Mon, 15 Jun 2020 20:17:16 +0300
parents 78f8ac479735
children
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


if [ $ZLIB != NONE ]; then
    CORE_INCS="$CORE_INCS $ZLIB"

    case "$NGX_CC_NAME" in

        msvc | owc | bcc)
            have=NGX_ZLIB . auto/have
            LINK_DEPS="$LINK_DEPS $ZLIB/zlib.lib"
            CORE_LIBS="$CORE_LIBS $ZLIB/zlib.lib"
        ;;

        icc)
            have=NGX_ZLIB . auto/have
            LINK_DEPS="$LINK_DEPS $ZLIB/libz.a"

            # to allow -ipo optimization we link with the *.o but not library
            CORE_LIBS="$CORE_LIBS $ZLIB/adler32.o"
            CORE_LIBS="$CORE_LIBS $ZLIB/crc32.o"
            CORE_LIBS="$CORE_LIBS $ZLIB/deflate.o"
            CORE_LIBS="$CORE_LIBS $ZLIB/trees.o"
            CORE_LIBS="$CORE_LIBS $ZLIB/zutil.o"
            CORE_LIBS="$CORE_LIBS $ZLIB/compress.o"

            if [ $ZLIB_ASM != NO ]; then
                CORE_LIBS="$CORE_LIBS $ZLIB/match.o"
            fi
        ;;

        *)
            have=NGX_ZLIB . auto/have
            LINK_DEPS="$LINK_DEPS $ZLIB/libz.a"
            CORE_LIBS="$CORE_LIBS $ZLIB/libz.a"
            #CORE_LIBS="$CORE_LIBS -L $ZLIB -lz"
        ;;

    esac

else

    if [ "$NGX_PLATFORM" != win32 ]; then
        ZLIB=NO

        # FreeBSD, Solaris, Linux

        ngx_feature="zlib library"
        ngx_feature_name="NGX_ZLIB"
        ngx_feature_run=no
        ngx_feature_incs="#include <zlib.h>"
        ngx_feature_path=
        ngx_feature_libs="-lz"
        ngx_feature_test="z_stream z; deflate(&z, Z_NO_FLUSH)"
        . auto/feature


        if [ $ngx_found = yes ]; then
            CORE_LIBS="$CORE_LIBS $ngx_feature_libs"
            ZLIB=YES
            ngx_found=no
        fi
    fi

    if [ $ZLIB != YES ]; then
cat << END

$0: error: the HTTP gzip module requires the zlib library.
You can either disable the module by using --without-http_gzip_module
option, or install the zlib library into the system, or build the zlib library
statically from the source with nginx by using --with-zlib=<path> option.

END
        exit 1
    fi

fi