From: [EMAIL PROTECTED]
Operating system: redhat 7.1
PHP version: 4.1.0
PHP Bug Type: Sablotron XSL
Bug description: segault when translating
given the following xml (bug_report.xml):
<?xml version="1.0" encoding="utf-8" ?>
<ITEM>
<TEST>1</TEST>
<ABC>0</ABC>
</ITEM>
and the following xsl (bug_report.xsl):
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="text" indent="no"/>
<xsl:param name="TEST"/>
<xsl:param name="ABC"/>
<xsl:template match="/">
<xsl:apply-templates select="ITEM[TEST=$TEST and ABC=$ABC]"/>
</xsl:template>
<xsl:template match="ITEM">
position: <xsl:value-of select="position()"/>
</xsl:template>
</xsl:stylesheet>
and the following php (bug_report.php):
<?php
/*
* this function is the xslt processor
* @param ($xml) string xml text-data
* @param ($xsl) string xsl stylesheet
* @param ($addl_buffers) array additional xml buffers, if any
* @param ($rt_params) array run-time paramaters for the stylesheet, if any.
optional.
* @return ($data) xslt translated data
*/
function transform_xslt ($xml = '', $xsl = '', $addl_buffers = '',
$rt_params = array()) {
$args = array( "/_xml" => $xml,
"/_xsl" => $xsl
);
/* add addl buffers here */
/* testng */
if($addl_buffers != '') {
foreach($addl_buffers as $buffer_name => $values) {
$args[$buffer_name] = $values;
}
}
$xh = xslt_create();
$data = xslt_process($xh, "arg:/_xml", "arg:/_xsl", NULL, $args,
$rt_params)
or $data = xslt_error($xh).":".xslt_errno($xh);
xslt_free($xh);
return($data);
}
$xml = join('', file("bug_report.xml"));
$xsl = join('', file("bug_report.xsl"));
$params = array("TEST" => 1, "ABC" => 0);
$trans = transform_xslt($xml, $xsl, "", $params);
echo "<pre>\n";
echo $trans;
echo "</pre>\n";
?>
if you inadvertently use:
<xsl:apply-templates match="ITEM[@TEST=$TEST and @ABC=ABC]"/>
on line 10 of bug_report.xsl instead of:
<xsl:apply-templates match="ITEM[TEST=$TEST and ABC=$ABC]"/>
apache/php segfaults with the following:
Program received signal SIGSEGV, Segmentation fault.
(gdb) bt0x403cf6c0 in zif_xslt_error (ht=1, return_value=0x818955c,
this_ptr=0x0, return_value_used=1) at sablot.c:584
584 RETURN_STRING(XSLT_ERRSTR(handle), 1);
(gdb) bt
#0 0x403cf6c0 in zif_xslt_error (ht=1, return_value=0x818955c,
this_ptr=0x0, return_value_used=1) at sablot.c:584
#1 0x40339cbc in execute (op_array=0x8176ee8) at ./zend_execute.c:1590
#2 0x40339ef6 in execute (op_array=0x81308ec) at ./zend_execute.c:1630
#3 0x40347fb0 in zend_execute_scripts (type=8, retval=0x0, file_count=3)
at zend.c:814
#4 0x403558b9 in php_execute_script (primary_file=0xbffff5d0) at
main.c:1309
#5 0x40351966 in apache_php_module_main (r=0x812697c,
display_source_mode=0) at sapi_apache.c:90
#6 0x40352446 in send_php (r=0x812697c, display_source_mode=0,
filename=0x0) at mod_php4.c:575
#7 0x403524aa in send_parsed_php (r=0x812697c) at mod_php4.c:590
#8 0x8053bb3 in ap_invoke_handler ()
#9 0x806791f in process_request_internal ()
#10 0x8067980 in ap_process_request ()
#11 0x805ee45 in child_main ()
#12 0x805eff0 in make_child ()
#13 0x805f164 in startup_children ()
#14 0x805f7b3 in standalone_main ()
#15 0x805ffcf in main ()
#16 0x40169b5c in __libc_start_main (main=0x805fc38 <main>, argc=2,
ubp_av=0xbffffa54, init=0x804e1fc <_init>, fini=0x807ce80 <_fini>,
rtld_fini=0x4000d634 <_dl_fini>, stack_end=0xbffffa4c) at
../sysdeps/generic/libc-start.c:129
./configure options:
--cache-file=/dev/null --with-config-file-path=/usr/local/apache/conf
--enable-trans-sid --with-imap --with-imap-ssl --enable-ftp
--enable-track-
vars --with-mysql=/usr/local/mysql --enable-libgcc --disable-debug
--with-db --verbose --with-gdbm --with-ndbm --with-db2 --with-gd=shared
--with-ttf --with-xml
--with-zlib --with-mhash --prefix=/usr/local/php --with-regex=system
--enable-memory-limit --enable-calendar --enable-sysvsem --enable-sysvshm
--with-bz2 --wit
h-gettext --with-jpeg-dir=/usr --with-xpm-dir=/usr/X11R6 --with-ldap
--with-mcal=/usr/local/src/libmcal --enable-exif
--with-pcre-regex=/usr/local/lib --without
-pgsql --enable-yp --enable-shmop --with-snmp --enable-sockets --enable-dba
--with-kerberos=/usr/kerberos --with-pspell --with-expat-dir=/usr
--with-pear --with
-iconv --enable-xslt --with-xslt-sablot
--with-mnogosearch=/usr/local/mnogosearch
sablot version: 0.71
--
Edit bug report at: http://bugs.php.net/?id=14560&edit=1
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