view auto/lib/conf @ 4617:972642646f06

Rewrite: fixed escaping and possible segfault (ticket #162). The following code resulted in incorrect escaping of uri and possible segfault: location / { rewrite ^(.*) $1?c=$1; return 200 "$uri"; } If there were arguments in a rewrite's replacement string, and length was actually calculated (due to duplicate captures as in the example above, or variables present), the is_args flag was set and incorrectly copied after length calculation. This resulted in escaping applied to the uri part of the replacement, resulting in incorrect escaping. Additionally, buffer was allocated without escaping expected, thus this also resulted in buffer overrun and possible segfault.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 11 May 2012 13:19:22 +0000
parents d620f497c50f
children 85dea406e18f
line wrap: on
line source


# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


if [ $USE_PCRE = YES -o $PCRE != NONE ]; then
    . auto/lib/pcre/conf

else
    if [ $USE_PCRE = DISABLED -a $HTTP_REWRITE = YES ]; then

cat << END

$0: error: the HTTP rewrite module requires the PCRE library.
You can either disable the module by using --without-http_rewrite_module
option or you have to enable the PCRE support.

END
        exit 1
    fi
fi


if [ $USE_OPENSSL = YES ]; then
    . auto/lib/openssl/conf
fi

if [ $USE_MD5 = YES ]; then

    if [ $USE_OPENSSL = YES ]; then
        have=NGX_HAVE_OPENSSL_MD5_H . auto/have
        have=NGX_OPENSSL_MD5 . auto/have
        have=NGX_HAVE_MD5 . auto/have
        MD5=YES
        MD5_LIB=OpenSSL

    else
        . auto/lib/md5/conf
    fi

fi

if [ $USE_SHA1 = YES ]; then

    if [ $USE_OPENSSL = YES ]; then
        have=NGX_HAVE_OPENSSL_SHA1_H . auto/have
        have=NGX_HAVE_SHA1 . auto/have
        SHA1=YES
        SHA1_LIB=OpenSSL

    else
        . auto/lib/sha1/conf
    fi

fi

if [ $USE_ZLIB = YES ]; then
    . auto/lib/zlib/conf
fi

if [ $USE_LIBXSLT = YES ]; then
    . auto/lib/libxslt/conf
fi

if [ $USE_LIBGD = YES ]; then
    . auto/lib/libgd/conf
fi

if [ $USE_PERL = YES ]; then
    . auto/lib/perl/conf
fi

if [ $HTTP_GEOIP = YES ]; then
    . auto/lib/geoip/conf
fi

if [ $NGX_GOOGLE_PERFTOOLS = YES ]; then
    . auto/lib/google-perftools/conf
fi

if [ $NGX_LIBATOMIC != NO ]; then
    . auto/lib/libatomic/conf
fi