php-src/ext/standard/fsock.c

/*
   +----------------------------------------------------------------------+
   | PHP Version 7                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2018 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Paul Panotzki - Bunyip Information Systems                  |
   |          Jim Winstead <jimw@php.net>                                 |
   |          Sascha Schumann <sascha@schumann.cx>                        |
   +----------------------------------------------------------------------+
*/

/* $Id$ */

#include "php.h"
#include "php_globals.h"
#include <stdlib.h>
#include <stddef.h>
#include "php_network.h"
#include "file.h"

/* {{{ php_fsockopen() */

static void php_fsockopen_stream(INTERNAL_FUNCTION_PARAMETERS, int persistent)
{
	char *host;
	size_t host_len;
	zend_long port = -1;
	zval *zerrno = NULL, *zerrstr = NULL;
	double timeout = (double)FG(default_socket_timeout);
#ifndef PHP_WIN32
	time_t conv;
#else
	long conv;
#endif
	struct timeval tv;
	char *hashkey = NULL;
	php_stream *stream = NULL;
	int err;
	char *hostname = NULL;
	size_t hostname_len;
	zend_string *errstr = NULL;

	RETVAL_FALSE;

	ZEND_PARSE_PARAMETERS_START(1, 5)
		Z_PARAM_STRING(host, host_len)
		Z_PARAM_OPTIONAL
		Z_PARAM_LONG(port)
		Z_PARAM_ZVAL_DEREF(zerrno)
		Z_PARAM_ZVAL_DEREF(zerrstr)
		Z_PARAM_DOUBLE(timeout)
	ZEND_PARSE_PARAMETERS_END_EX(RETURN_FALSE);

	if (persistent) {
		spprintf(&hashkey, 0, "pfsockopen__%s:" ZEND_LONG_FMT, host, port);
	}

	if (port > 0) {
		hostname_len = spprintf(&hostname, 0, "%s:" ZEND_LONG_FMT, host, port);
	} else {
		hostname_len = host_len;
		hostname = host;
	}

	/* prepare the timeout value for use */
#ifndef PHP_WIN32
	conv = (time_t) (timeout * 1000000.0);
	tv.tv_sec = conv / 1000000;
#else
	conv = (long) (timeout * 1000000.0);
	tv.tv_sec = conv / 1000000;
#endif
	tv.tv_usec = conv % 1000000;

	if (zerrno)	{
		zval_ptr_dtor(zerrno);
		ZVAL_LONG(zerrno, 0);
	}
	if (zerrstr) {
		zval_ptr_dtor(zerrstr);
		ZVAL_EMPTY_STRING(zerrstr);
	}

	stream = php_stream_xport_create(hostname, hostname_len, REPORT_ERRORS,
			STREAM_XPORT_CLIENT | STREAM_XPORT_CONNECT, hashkey, &tv, NULL, &errstr, &err);

	if (port > 0) {
		efree(hostname);
	}
	if (stream == NULL) {
		php_error_docref(NULL, E_WARNING, "unable to connect to %s:" ZEND_LONG_FMT " (%s)", host, port, errstr == NULL ? "Unknown error" : ZSTR_VAL(errstr));
	}

	if (hashkey) {
		efree(hashkey);
	}

	if (stream == NULL)	{
		if (zerrno) {
			zval_ptr_dtor(zerrno);
			ZVAL_LONG(zerrno, err);
		}
		if (zerrstr && errstr) {
			/* no need to dup; we need to efree buf anyway */
			zval_ptr_dtor(zerrstr);
			ZVAL_STR(zerrstr, errstr);
		} else if (!zerrstr && errstr) {
			zend_string_release(errstr);
		}

		RETURN_FALSE;
	}

	if (errstr) {
		zend_string_release(errstr);
	}

	php_stream_to_zval(stream, return_value);
}

/* }}} */

/* {{{ proto resource fsockopen(string hostname, int port [, int errno [, string errstr [, float timeout]]])
   Open Internet or Unix domain socket connection */
PHP_FUNCTION(fsockopen)
{
	php_fsockopen_stream(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */

/* {{{ proto resource pfsockopen(string hostname, int port [, int errno [, string errstr [, float timeout]]])
   Open persistent Internet or Unix domain socket connection */
PHP_FUNCTION(pfsockopen)
{
	php_fsockopen_stream(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */

/*
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 * End:
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