view auto/lib/libxslt/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.


    ngx_feature="libxslt"
    ngx_feature_name=
    ngx_feature_run=no
    ngx_feature_incs="#include <libxml/parser.h>
                      #include <libxml/tree.h>
                      #include <libxslt/xslt.h>
                      #include <libxslt/xsltInternals.h>
                      #include <libxslt/transform.h>
                      #include <libxslt/xsltutils.h>"
    ngx_feature_path="/usr/include/libxml2"
    ngx_feature_libs="-lxml2 -lxslt"
    ngx_feature_test="xmlParserCtxtPtr    ctxt = NULL;
                      xsltStylesheetPtr   sheet = NULL;
                      xmlDocPtr           doc;
                      doc = xmlParseChunk(ctxt, NULL, 0, 0);
                      xsltApplyStylesheet(sheet, doc, NULL);"
    . auto/feature


if [ $ngx_found = no ]; then

    # FreeBSD port

    ngx_feature="libxslt in /usr/local/"
    ngx_feature_path="/usr/local/include/libxml2 /usr/local/include"

    if [ $NGX_RPATH = YES ]; then
        ngx_feature_libs="-R/usr/local/lib -L/usr/local/lib -lxml2 -lxslt"
    else
        ngx_feature_libs="-L/usr/local/lib -lxml2 -lxslt"
    fi

    . auto/feature
fi


if [ $ngx_found = no ]; then

    # NetBSD port

    ngx_feature="libxslt in /usr/pkg/"
    ngx_feature_path="/usr/pkg/include/libxml2 /usr/pkg/include"

    if [ $NGX_RPATH = YES ]; then
        ngx_feature_libs="-R/usr/pkg/lib -L/usr/pkg/lib -lxml2 -lxslt"
    else
        ngx_feature_libs="-L/usr/pkg/lib -lxml2 -lxslt"
    fi

    . auto/feature
fi


if [ $ngx_found = no ]; then

    # MacPorts

    ngx_feature="libxslt in /opt/local/"
    ngx_feature_path="/opt/local/include/libxml2 /opt/local/include"

    if [ $NGX_RPATH = YES ]; then
        ngx_feature_libs="-R/opt/local/lib -L/opt/local/lib -lxml2 -lxslt"
    else
        ngx_feature_libs="-L/opt/local/lib -lxml2 -lxslt"
    fi

    . auto/feature
fi


if [ $ngx_found = yes ]; then

    CORE_INCS="$CORE_INCS $ngx_feature_path"
    CORE_LIBS="$CORE_LIBS $ngx_feature_libs"

else

cat << END

$0: error: the HTTP XSLT module requires the libxml2/libxslt
libraries. You can either do not enable the module or install the libraries.

END

    exit 1
fi


    ngx_feature="libexslt"
    ngx_feature_name=NGX_HAVE_EXSLT
    ngx_feature_run=no
    ngx_feature_incs="#include <libexslt/exslt.h>"
    ngx_feature_path="/usr/include/libxml2"
    ngx_feature_libs="-lexslt"
    ngx_feature_test="exsltRegisterAll();"
    . auto/feature

if [ $ngx_found = no ]; then

    # FreeBSD port

    ngx_feature="libexslt in /usr/local/"
    ngx_feature_path="/usr/local/include/libxml2 /usr/local/include"

    if [ $NGX_RPATH = YES ]; then
        ngx_feature_libs="-R/usr/local/lib -L/usr/local/lib -lexslt"
    else
        ngx_feature_libs="-L/usr/local/lib -lexslt"
    fi

    . auto/feature
fi


if [ $ngx_found = no ]; then

    # NetBSD port

    ngx_feature="libexslt in /usr/pkg/"
    ngx_feature_path="/usr/pkg/include/libxml2 /usr/local/include"

    if [ $NGX_RPATH = YES ]; then
        ngx_feature_libs="-R/usr/pkg/lib -L/usr/pkg/lib -lexslt"
    else
        ngx_feature_libs="-L/usr/pkg/lib -lexslt"
    fi

    . auto/feature
fi


if [ $ngx_found = no ]; then

    # MacPorts

    ngx_feature="libexslt in /opt/local/"
    ngx_feature_path="/opt/local/include/libxml2 /opt/local/include"

    if [ $NGX_RPATH = YES ]; then
        ngx_feature_libs="-R/opt/local/lib -L/opt/local/lib -lexslt"
    else
        ngx_feature_libs="-L/opt/local/lib -lexslt"
    fi

    . auto/feature
fi


if [ $ngx_found = yes ]; then
    CORE_LIBS="$CORE_LIBS -lexslt"
fi