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[2007-10-17 16:30 UTC] maport1 at uky dot edu
Description:
------------
Is there a method so that the Expect library output (turned on via exp_loguser) is accessible to the calling script running with PHP as an Apache module? For example, this would be used to display a telnet session trace when it has failed out. In my testing, it appears that the output is sent to the php://stdout stream, and thus it is unavailable to the calling script within Apache. I understand that exp_logfile can be set to redirect output to a file, but is it possible to somehow pass a flag so that the log is actually displayed in the php://output stream? I would attempt this myself (as with the subpattern matching changes), but I don't understand enough of the underlying Zend streams model to join the output streams.
Reproduce code:
---------------
<?php
ini_set("expect.loguser", 1);
ob_start();
print "Opening connection to localhost ...\n";
$fp = fopen("expect://ssh 127.0.0.1", "r");
. . . .
fclose($fp);
$trace = ob_get_contents();
?>
Expected result:
----------------
$trace contains the full output from Expect
Actual result:
--------------
$trace contains only output sent via the print and echo commands
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Last updated: Tue Nov 04 16:00:01 2025 UTC |
Mark Frost and I created a patch that *appears* to work in the manner I was expecting. It adds a fourth .ini boolean parameter, expect.logoutput, that passes the php://output stream to exp_logfile. We would, however, appreciate a second eye checking for potential errors. Here is the patch: --- expect-0.2.3/expect.c 2006-07-05 10:51:56.000000000 -0400 +++ expect-0.2.4/expect.c 2007-10-17 17:19:40.000000000 -0400 @@ -82,7 +82,7 @@ if (new_value_length > 0) { exp_logfile = fopen (new_value, "a"); if (!exp_logfile) { - php_error_docref (NULL TSRMLS_CC, E_ERROR, "could not open log file for writting"); + php_error_docref (NULL TSRMLS_CC, E_ERROR, "could not open log file for writing"); return FAILURE; } } @@ -91,10 +91,27 @@ /* }}} */ +/* {{{ PHP_INI_MH + * */ +static PHP_INI_MH(OnSetExpectLogOutput) +{ + if (new_value) { + if (!strncasecmp("on", new_value, sizeof("on")) || atoi(new_value)) { + php_stream *out = php_stream_open_wrapper("php://output", "w", 0, NULL); + FILE * php_output; + (void) php_stream_cast(out, PHP_STREAM_AS_STDIO, (void **) &php_output, REPORT_ERRORS); + exp_logfile = php_output; + } + } +} +/* }}} */ + + PHP_INI_BEGIN() PHP_INI_ENTRY("expect.timeout", "10", PHP_INI_ALL, OnSetExpectTimeout) PHP_INI_ENTRY_EX("expect.loguser", "1", PHP_INI_ALL, OnSetExpectLogUser, php_ini_boolean_displayer_cb) PHP_INI_ENTRY("expect.logfile", "", PHP_INI_ALL, OnSetExpectLogFile) + PHP_INI_ENTRY_EX("expect.logoutput", "0", PHP_INI_ALL, OnSetExpectLogOutput, php_ini_boolean_displayer_cb) PHP_INI_END()