mirror of
https://github.com/php/php-src.git
synced 2024-11-29 04:46:07 +08:00
1567 lines
40 KiB
C
Executable File
1567 lines
40 KiB
C
Executable File
/*
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+----------------------------------------------------------------------+
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| PHP Version 4 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2002 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.02 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available at through the world-wide-web at |
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| http://www.php.net/license/2_02.txt. |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: |
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| Wez Furlong (wez@thebrainroom.com) |
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| Borrowed code from: |
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| Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
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| Jim Winstead <jimw@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#define _GNU_SOURCE
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#include "php.h"
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#include "php_globals.h"
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#include "php_network.h"
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#include "php_open_temporary_file.h"
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#include "ext/standard/file.h"
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#include "ext/standard/basic_functions.h" /* for BG(mmap_file) (not strictly required) */
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#ifndef MAP_FAILED
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#define MAP_FAILED ((void *) -1)
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#endif
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#define CHUNK_SIZE 8192
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#ifdef PHP_WIN32
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#define EWOULDBLOCK WSAEWOULDBLOCK
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#else
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#include "build-defs.h"
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#endif
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#define STREAM_DEBUG 0
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#define STREAM_WRAPPER_PLAIN_FILES ((php_stream_wrapper*)-1)
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/* {{{ some macros to help track leaks */
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#if ZEND_DEBUG
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#define emalloc_rel_orig(size) \
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( __php_stream_call_depth == 0 \
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? _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_RELAY_CC) \
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: _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC) )
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#define erealloc_rel_orig(ptr, size) \
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( __php_stream_call_depth == 0 \
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? _erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_RELAY_CC) \
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: _erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC) )
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#define pemalloc_rel_orig(size, persistent) ((persistent) ? malloc((size)) : emalloc_rel_orig((size)))
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#define perealloc_rel_orig(ptr, size, persistent) ((persistent) ? realloc((ptr), (size)) : erealloc_rel_orig((ptr), (size)))
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#else
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# define pemalloc_rel_orig(size, persistent) pemalloc((size), (persistent))
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# define perealloc_rel_orig(ptr, size, persistent) perealloc((ptr), (size), (persistent))
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# define emalloc_rel_orig(size) emalloc((size))
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#endif
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/* }}} */
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static HashTable url_stream_wrappers_hash;
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/* allocate a new stream for a particular ops */
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PHPAPI php_stream *_php_stream_alloc(php_stream_ops *ops, void *abstract, int persistent, const char *mode STREAMS_DC TSRMLS_DC) /* {{{ */
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{
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php_stream *ret;
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ret = (php_stream*) pemalloc_rel_orig(sizeof(php_stream), persistent);
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memset(ret, 0, sizeof(php_stream));
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#if STREAM_DEBUG
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fprintf(stderr, "stream_alloc: %s:%p\n", ops->label, ret);
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#endif
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ret->ops = ops;
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ret->abstract = abstract;
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ret->is_persistent = persistent;
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ret->rsrc_id = ZEND_REGISTER_RESOURCE(NULL, ret, php_file_le_stream());
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strlcpy(ret->mode, mode, sizeof(ret->mode));
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return ret;
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}
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/* }}} */
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PHPAPI int _php_stream_free(php_stream *stream, int close_options TSRMLS_DC) /* {{{ */
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{
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int ret = 1;
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#if STREAM_DEBUG
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fprintf(stderr, "stream_free: %s:%p in_free=%d opts=%08x\n", stream->ops->label, stream, stream->in_free, close_options);
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#endif
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if (stream->in_free)
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return 1;
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stream->in_free++;
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if ((close_options & PHP_STREAM_FREE_RSRC_DTOR) == 0) {
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/* Remove entry from the resource list */
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zend_list_delete(stream->rsrc_id);
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}
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if (close_options & PHP_STREAM_FREE_CALL_DTOR) {
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if (stream->fclose_stdiocast == PHP_STREAM_FCLOSE_FOPENCOOKIE) {
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/* calling fclose on an fopencookied stream will ultimately
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call this very same function. If we were called via fclose,
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the cookie_closer unsets the fclose_stdiocast flags, so
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we can be sure that we only reach here when PHP code calls
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php_stream_free.
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Lets let the cookie code clean it all up.
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*/
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stream->in_free = 0;
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return fclose(stream->stdiocast);
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}
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ret = stream->ops->close(stream, close_options & PHP_STREAM_FREE_PRESERVE_HANDLE ? 0 : 1 TSRMLS_CC);
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stream->abstract = NULL;
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/* tidy up any FILE* that might have been fdopened */
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if (stream->fclose_stdiocast == PHP_STREAM_FCLOSE_FDOPEN && stream->stdiocast) {
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fclose(stream->stdiocast);
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stream->stdiocast = NULL;
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}
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}
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if (close_options & PHP_STREAM_FREE_RELEASE_STREAM) {
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if (stream->wrapper && stream->wrapper->wops && stream->wrapper->wops->stream_closer) {
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stream->wrapper->wops->stream_closer(stream->wrapper, stream TSRMLS_CC);
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stream->wrapper = NULL;
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}
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if (stream->wrapperdata) {
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zval_ptr_dtor(&stream->wrapperdata);
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stream->wrapperdata = NULL;
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}
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#if ZEND_DEBUG
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if ((close_options & PHP_STREAM_FREE_RSRC_DTOR) && (stream->__exposed == 0) && (EG(error_reporting) & E_WARNING)) {
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/* it leaked: Lets deliberately NOT pefree it so that the memory manager shows it
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* as leaked; it will log a warning, but lets help it out and display what kind
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* of stream it was. */
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char leakbuf[512];
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snprintf(leakbuf, sizeof(leakbuf), __FILE__ "(%d) : Stream of type '%s' 0x%08X was not closed\n", __LINE__, stream->ops->label, (unsigned int)stream);
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# if defined(PHP_WIN32)
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OutputDebugString(leakbuf);
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# else
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fprintf(stderr, leakbuf);
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# endif
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}
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else
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#endif
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pefree(stream, stream->is_persistent);
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}
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return ret;
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}
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/* }}} */
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/* {{{ generic stream operations */
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PHPAPI size_t _php_stream_read(php_stream *stream, char *buf, size_t size TSRMLS_DC)
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{
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return stream->ops->read == NULL ? 0 : stream->ops->read(stream, buf, size TSRMLS_CC);
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}
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PHPAPI int _php_stream_eof(php_stream *stream TSRMLS_DC)
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{
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/* we define our stream reading function so that it
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must return EOF when an EOF condition occurs, when
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working in unbuffered mode and called with these args */
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return stream->ops->read == NULL ? -1 : stream->ops->read(stream, NULL, 0 TSRMLS_CC) == EOF ? 1 : 0;
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}
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PHPAPI int _php_stream_putc(php_stream *stream, int c TSRMLS_DC)
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{
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unsigned char buf = c;
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if (php_stream_write(stream, &buf, 1) > 0) {
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return 1;
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}
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return EOF;
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}
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PHPAPI int _php_stream_getc(php_stream *stream TSRMLS_DC)
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{
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char buf;
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if (php_stream_read(stream, &buf, 1) > 0) {
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return buf & 0xff;
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}
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return EOF;
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}
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PHPAPI int _php_stream_puts(php_stream *stream, char *buf TSRMLS_DC)
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{
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int len;
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char newline[2] = "\n"; /* is this OK for Win? */
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len = strlen(buf);
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if (len > 0 && php_stream_write(stream, buf, len) && php_stream_write(stream, newline, 1)) {
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return 1;
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}
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return 0;
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}
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PHPAPI int _php_stream_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC)
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{
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memset(ssb, 0, sizeof(*ssb));
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/* if the stream was wrapped, allow the wrapper to stat it */
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if (stream->wrapper && stream->wrapper->wops->stream_stat != NULL) {
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return stream->wrapper->wops->stream_stat(stream->wrapper, stream, ssb TSRMLS_CC);
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}
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/* if the stream doesn't directly support stat-ing, return with failure.
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* We could try and emulate this by casting to a FD and fstat-ing it,
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* but since the fd might not represent the actual underlying content
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* this would give bogus results. */
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if (stream->ops->stat == NULL) {
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return -1;
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}
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return stream->ops->stat(stream, ssb TSRMLS_CC);
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}
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PHPAPI char *_php_stream_gets(php_stream *stream, char *buf, size_t maxlen TSRMLS_DC)
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{
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if (maxlen == 0) {
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buf[0] = 0;
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return buf;
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}
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if (stream->ops->gets) {
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return stream->ops->gets(stream, buf, maxlen TSRMLS_CC);
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} else if (stream->ops->read == NULL) {
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return NULL;
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} else {
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/* unbuffered fgets - poor performance ! */
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char *c = buf;
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/* TODO: look at error returns? */
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while (--maxlen > 0 && stream->ops->read(stream, buf, 1 TSRMLS_CC) == 1 && *buf++ != '\n');
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*buf = '\0';
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return c == buf && maxlen > 0 ? NULL : c;
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}
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}
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PHPAPI int _php_stream_flush(php_stream *stream TSRMLS_DC)
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{
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if (stream->ops->flush) {
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return stream->ops->flush(stream TSRMLS_CC);
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}
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return 0;
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}
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PHPAPI size_t _php_stream_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
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{
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assert(stream);
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if (buf == NULL || count == 0 || stream->ops->write == NULL)
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return 0;
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return stream->ops->write(stream, buf, count TSRMLS_CC);
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}
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PHPAPI off_t _php_stream_tell(php_stream *stream TSRMLS_DC)
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{
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off_t ret = -1;
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if (stream->ops->seek) {
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ret = stream->ops->seek(stream, 0, SEEK_CUR TSRMLS_CC);
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}
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return ret;
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}
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PHPAPI int _php_stream_seek(php_stream *stream, off_t offset, int whence TSRMLS_DC)
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{
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if (stream->ops->seek) {
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return stream->ops->seek(stream, offset, whence TSRMLS_CC);
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}
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/* emulate forward moving seeks with reads */
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if (whence == SEEK_CUR && offset > 0) {
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char tmp[1024];
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while(offset >= sizeof(tmp)) {
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if (php_stream_read(stream, tmp, sizeof(tmp)) == 0)
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return -1;
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offset -= sizeof(tmp);
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}
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if (offset) {
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if (php_stream_read(stream, tmp, offset) == 0)
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return -1;
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}
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return 0;
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}
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zend_error(E_WARNING, "streams of type %s do not support seeking", stream->ops->label);
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return -1;
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}
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PHPAPI size_t _php_stream_passthru(php_stream * stream STREAMS_DC TSRMLS_DC)
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{
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size_t bcount = 0;
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int ready = 0;
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char buf[8192];
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#ifdef HAVE_MMAP
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int fd;
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#endif
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#ifdef HAVE_MMAP
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if (!php_stream_is(stream, PHP_STREAM_IS_SOCKET)
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&& SUCCESS == php_stream_cast(stream, PHP_STREAM_AS_FD, (void*)&fd, 0))
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{
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struct stat sbuf;
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off_t off;
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void *p;
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size_t len;
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fstat(fd, &sbuf);
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if (sbuf.st_size > sizeof(buf)) {
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off = php_stream_tell(stream);
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len = sbuf.st_size - off;
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p = mmap(0, len, PROT_READ, MAP_SHARED, fd, off);
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if (p != (void *) MAP_FAILED) {
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BG(mmap_file) = p;
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BG(mmap_len) = len;
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PHPWRITE(p, len);
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BG(mmap_file) = NULL;
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munmap(p, len);
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bcount += len;
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ready = 1;
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}
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}
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}
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#endif
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if(!ready) {
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int b;
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while ((b = php_stream_read(stream, buf, sizeof(buf))) > 0) {
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PHPWRITE(buf, b);
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bcount += b;
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}
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}
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return bcount;
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}
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PHPAPI size_t _php_stream_copy_to_mem(php_stream *src, char **buf, size_t maxlen, int persistent STREAMS_DC TSRMLS_DC)
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{
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size_t ret = 0;
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char *ptr;
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size_t len = 0, max_len;
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int step = CHUNK_SIZE;
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int min_room = CHUNK_SIZE / 4;
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#if HAVE_MMAP
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int srcfd;
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#endif
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if (buf)
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*buf = NULL;
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if (maxlen == 0)
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return 0;
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if (maxlen == PHP_STREAM_COPY_ALL)
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maxlen = 0;
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#if HAVE_MMAP
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/* try and optimize the case where we are copying from the start of a plain file.
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* We could probably make this work in more situations, but I don't trust the stdio
|
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* buffering layer.
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* */
|
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if ( php_stream_is(src, PHP_STREAM_IS_STDIO) &&
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php_stream_tell(src) == 0 &&
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SUCCESS == php_stream_cast(src, PHP_STREAM_AS_FD, (void**)&srcfd, 0))
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{
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struct stat sbuf;
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if (fstat(srcfd, &sbuf) == 0) {
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void *srcfile;
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#if STREAM_DEBUG
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fprintf(stderr, "mmap attempt: maxlen=%d filesize=%d\n", maxlen, sbuf.st_size);
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#endif
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|
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if (maxlen > sbuf.st_size || maxlen == 0)
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maxlen = sbuf.st_size;
|
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#if STREAM_DEBUG
|
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fprintf(stderr, "mmap attempt: will map maxlen=%d\n", maxlen);
|
|
#endif
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srcfile = mmap(NULL, maxlen, PROT_READ, MAP_SHARED, srcfd, 0);
|
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if (srcfile != (void*)MAP_FAILED) {
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*buf = pemalloc_rel_orig(maxlen + 1, persistent);
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|
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if (*buf) {
|
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memcpy(*buf, srcfile, maxlen);
|
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(*buf)[maxlen] = '\0';
|
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ret = maxlen;
|
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}
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|
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munmap(srcfile, maxlen);
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|
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return ret;
|
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}
|
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}
|
|
/* fall through - we might be able to copy in smaller chunks */
|
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}
|
|
#endif
|
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|
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ptr = *buf = pemalloc_rel_orig(step, persistent);
|
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max_len = step;
|
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|
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while((ret = php_stream_read(src, ptr, max_len - len))) {
|
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len += ret;
|
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if (len + min_room >= max_len) {
|
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*buf = perealloc_rel_orig(*buf, max_len + step, persistent);
|
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max_len += step;
|
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ptr = *buf + len;
|
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}
|
|
}
|
|
if (len) {
|
|
*buf = perealloc_rel_orig(*buf, len + 1, persistent);
|
|
(*buf)[len] = '\0';
|
|
} else {
|
|
pefree(*buf, persistent);
|
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*buf = NULL;
|
|
}
|
|
return len;
|
|
}
|
|
|
|
PHPAPI size_t _php_stream_copy_to_stream(php_stream *src, php_stream *dest, size_t maxlen STREAMS_DC TSRMLS_DC)
|
|
{
|
|
char buf[CHUNK_SIZE];
|
|
size_t readchunk;
|
|
size_t haveread = 0;
|
|
size_t didread;
|
|
#if HAVE_MMAP
|
|
int srcfd;
|
|
#endif
|
|
|
|
if (maxlen == 0)
|
|
return 0;
|
|
|
|
if (maxlen == PHP_STREAM_COPY_ALL)
|
|
maxlen = 0;
|
|
|
|
#if HAVE_MMAP
|
|
/* try and optimize the case where we are copying from the start of a plain file.
|
|
* We could probably make this work in more situations, but I don't trust the stdio
|
|
* buffering layer.
|
|
* */
|
|
if ( php_stream_is(src, PHP_STREAM_IS_STDIO) &&
|
|
php_stream_tell(src) == 0 &&
|
|
SUCCESS == php_stream_cast(src, PHP_STREAM_AS_FD, (void**)&srcfd, 0))
|
|
{
|
|
struct stat sbuf;
|
|
|
|
if (fstat(srcfd, &sbuf) == 0) {
|
|
void *srcfile;
|
|
|
|
/* in the event that the source file is 0 bytes, return 1 to indicate success
|
|
* because opening the file to write had already created a copy */
|
|
|
|
if(sbuf.st_size ==0)
|
|
return 1;
|
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|
|
if (maxlen > sbuf.st_size || maxlen == 0)
|
|
maxlen = sbuf.st_size;
|
|
|
|
srcfile = mmap(NULL, maxlen, PROT_READ, MAP_SHARED, srcfd, 0);
|
|
if (srcfile != (void*)MAP_FAILED) {
|
|
haveread = php_stream_write(dest, srcfile, maxlen);
|
|
munmap(srcfile, maxlen);
|
|
return haveread;
|
|
}
|
|
}
|
|
/* fall through - we might be able to copy in smaller chunks */
|
|
}
|
|
#endif
|
|
|
|
while(1) {
|
|
readchunk = sizeof(buf);
|
|
|
|
if (maxlen && (maxlen - haveread) < readchunk)
|
|
readchunk = maxlen - haveread;
|
|
|
|
didread = php_stream_read(src, buf, readchunk);
|
|
|
|
if (didread) {
|
|
/* extra paranoid */
|
|
size_t didwrite, towrite;
|
|
char *writeptr;
|
|
|
|
towrite = didread;
|
|
writeptr = buf;
|
|
haveread += didread;
|
|
|
|
while(towrite) {
|
|
didwrite = php_stream_write(dest, writeptr, towrite);
|
|
if (didwrite == 0)
|
|
return 0; /* error */
|
|
|
|
towrite -= didwrite;
|
|
writeptr += didwrite;
|
|
}
|
|
} else {
|
|
if (maxlen == 0) {
|
|
return haveread;
|
|
} else {
|
|
return 0; /* error */
|
|
}
|
|
}
|
|
|
|
if (maxlen - haveread == 0) {
|
|
break;
|
|
}
|
|
}
|
|
return haveread;
|
|
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ ------- STDIO stream implementation -------*/
|
|
|
|
typedef struct {
|
|
FILE *file;
|
|
int is_pipe; /* use pclose */
|
|
#if HAVE_FLUSHIO
|
|
char last_op;
|
|
#endif
|
|
} php_stdio_stream_data;
|
|
|
|
PHPAPI php_stream *_php_stream_fopen_temporary_file(const char *dir, const char *pfx, char **opened_path STREAMS_DC TSRMLS_DC)
|
|
{
|
|
FILE *fp = php_open_temporary_file(dir, pfx, opened_path TSRMLS_CC);
|
|
|
|
if (fp) {
|
|
php_stream *stream = php_stream_fopen_from_file_rel(fp, "wb");
|
|
if (stream) {
|
|
return stream;
|
|
}
|
|
fclose(fp);
|
|
|
|
zend_error(E_WARNING, "%s(): unable to allocate stream", get_active_function_name(TSRMLS_C));
|
|
|
|
return NULL;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
PHPAPI php_stream *_php_stream_fopen_tmpfile(int dummy STREAMS_DC TSRMLS_DC)
|
|
{
|
|
FILE *fp;
|
|
php_stream *stream;
|
|
|
|
fp = tmpfile();
|
|
if (fp == NULL) {
|
|
zend_error(E_WARNING, "tmpfile(): %s", strerror(errno));
|
|
return NULL;
|
|
}
|
|
stream = php_stream_fopen_from_file_rel(fp, "r+");
|
|
if (stream == NULL) {
|
|
zend_error(E_WARNING, "tmpfile(): %s", strerror(errno));
|
|
fclose(fp);
|
|
return NULL;
|
|
}
|
|
return stream;
|
|
}
|
|
|
|
|
|
|
|
PHPAPI php_stream *_php_stream_fopen_from_file(FILE *file, const char *mode STREAMS_DC TSRMLS_DC)
|
|
{
|
|
php_stdio_stream_data *self;
|
|
|
|
self = emalloc_rel_orig(sizeof(*self));
|
|
self->file = file;
|
|
self->is_pipe = 0;
|
|
return php_stream_alloc_rel(&php_stream_stdio_ops, self, 0, mode);
|
|
}
|
|
|
|
PHPAPI php_stream *_php_stream_fopen_from_pipe(FILE *file, const char *mode STREAMS_DC TSRMLS_DC)
|
|
{
|
|
php_stdio_stream_data *self;
|
|
|
|
self = emalloc_rel_orig(sizeof(*self));
|
|
self->file = file;
|
|
self->is_pipe = 1;
|
|
return php_stream_alloc_rel(&php_stream_stdio_ops, self, 0, mode);
|
|
}
|
|
static size_t php_stdiop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
|
|
{
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*)stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
|
|
#if HAVE_FLUSHIO
|
|
if (data->last_op == 'r') {
|
|
fseek(data->file, 0, SEEK_CUR);
|
|
}
|
|
data->last_op = 'w';
|
|
#endif
|
|
|
|
return fwrite(buf, 1, count, data->file);
|
|
}
|
|
|
|
static size_t php_stdiop_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
|
|
{
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*)stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
|
|
if (buf == NULL && count == 0) {
|
|
/* check for EOF condition */
|
|
if (feof(data->file)) {
|
|
return EOF;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if HAVE_FLUSHIO
|
|
if (data->last_op == 'w')
|
|
fseek(data->file, 0, SEEK_CUR);
|
|
data->last_op = 'r';
|
|
#endif
|
|
|
|
return fread(buf, 1, count, data->file);
|
|
}
|
|
|
|
static int php_stdiop_close(php_stream *stream, int close_handle TSRMLS_DC)
|
|
{
|
|
int ret;
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*)stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
|
|
if (close_handle) {
|
|
if (data->is_pipe) {
|
|
ret = pclose(data->file);
|
|
} else {
|
|
ret = fclose(data->file);
|
|
}
|
|
} else {
|
|
ret = 0;
|
|
}
|
|
|
|
/* STDIO streams are never persistent! */
|
|
efree(data);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int php_stdiop_flush(php_stream *stream TSRMLS_DC)
|
|
{
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*)stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
|
|
return fflush(data->file);
|
|
}
|
|
|
|
static int php_stdiop_seek(php_stream *stream, off_t offset, int whence TSRMLS_DC)
|
|
{
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*)stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
|
|
if (offset == 0 && whence == SEEK_CUR)
|
|
return ftell(data->file);
|
|
|
|
return fseek(data->file, offset, whence);
|
|
}
|
|
|
|
static char *php_stdiop_gets(php_stream *stream, char *buf, size_t size TSRMLS_DC)
|
|
{
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*)stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
#if HAVE_FLUSHIO
|
|
if (data->last_op == 'w') {
|
|
fseek(data->file, 0, SEEK_CUR);
|
|
}
|
|
data->last_op = 'r';
|
|
#endif
|
|
|
|
return fgets(buf, size, data->file);
|
|
}
|
|
static int php_stdiop_cast(php_stream *stream, int castas, void **ret TSRMLS_DC)
|
|
{
|
|
int fd;
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*) stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
|
|
switch (castas) {
|
|
case PHP_STREAM_AS_STDIO:
|
|
if (ret) {
|
|
*ret = data->file;
|
|
}
|
|
return SUCCESS;
|
|
|
|
case PHP_STREAM_AS_FD:
|
|
fd = fileno(data->file);
|
|
if (fd < 0) {
|
|
return FAILURE;
|
|
}
|
|
if (ret) {
|
|
fflush(data->file);
|
|
*ret = (void*)fd;
|
|
}
|
|
return SUCCESS;
|
|
default:
|
|
return FAILURE;
|
|
}
|
|
}
|
|
|
|
static int php_stdiop_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC)
|
|
{
|
|
int fd;
|
|
php_stdio_stream_data *data = (php_stdio_stream_data*) stream->abstract;
|
|
|
|
assert(data != NULL);
|
|
|
|
fd = fileno(data->file);
|
|
|
|
return fstat(fd, &ssb->sb);
|
|
}
|
|
|
|
PHPAPI php_stream_ops php_stream_stdio_ops = {
|
|
php_stdiop_write, php_stdiop_read,
|
|
php_stdiop_close, php_stdiop_flush,
|
|
"STDIO",
|
|
php_stdiop_seek,
|
|
php_stdiop_gets, php_stdiop_cast,
|
|
php_stdiop_stat
|
|
};
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_fopen_with_path */
|
|
PHPAPI php_stream *_php_stream_fopen_with_path(char *filename, char *mode, char *path, char **opened_path STREAMS_DC TSRMLS_DC)
|
|
{
|
|
/* code ripped off from fopen_wrappers.c */
|
|
char *pathbuf, *ptr, *end;
|
|
char *exec_fname;
|
|
char trypath[MAXPATHLEN];
|
|
struct stat sb;
|
|
php_stream *stream;
|
|
int path_length;
|
|
int filename_length;
|
|
int exec_fname_length;
|
|
|
|
if (opened_path) {
|
|
*opened_path = NULL;
|
|
}
|
|
|
|
if(!filename) {
|
|
return NULL;
|
|
}
|
|
|
|
filename_length = strlen(filename);
|
|
|
|
/* Relative path open */
|
|
if (*filename == '.') {
|
|
if (PG(safe_mode) && (!php_checkuid(filename, mode, CHECKUID_CHECK_MODE_PARAM))) {
|
|
return NULL;
|
|
}
|
|
return php_stream_fopen_rel(filename, mode, opened_path);
|
|
}
|
|
|
|
/*
|
|
* files in safe_mode_include_dir (or subdir) are excluded from
|
|
* safe mode GID/UID checks
|
|
*/
|
|
|
|
/* Absolute path open */
|
|
if (IS_ABSOLUTE_PATH(filename, filename_length)) {
|
|
if ((php_check_safe_mode_include_dir(filename TSRMLS_CC)) == 0)
|
|
/* filename is in safe_mode_include_dir (or subdir) */
|
|
return php_stream_fopen_rel(filename, mode, opened_path);
|
|
|
|
if (PG(safe_mode) && (!php_checkuid(filename, mode, CHECKUID_CHECK_MODE_PARAM)))
|
|
return NULL;
|
|
|
|
return php_stream_fopen_rel(filename, mode, opened_path);
|
|
}
|
|
|
|
if (!path || (path && !*path)) {
|
|
if (PG(safe_mode) && (!php_checkuid(filename, mode, CHECKUID_CHECK_MODE_PARAM))) {
|
|
return NULL;
|
|
}
|
|
return php_stream_fopen_rel(filename, mode, opened_path);
|
|
}
|
|
|
|
/* check in provided path */
|
|
/* append the calling scripts' current working directory
|
|
* as a fall back case
|
|
*/
|
|
if (zend_is_executing(TSRMLS_C)) {
|
|
exec_fname = zend_get_executed_filename(TSRMLS_C);
|
|
exec_fname_length = strlen(exec_fname);
|
|
path_length = strlen(path);
|
|
|
|
while ((--exec_fname_length >= 0) && !IS_SLASH(exec_fname[exec_fname_length]));
|
|
if ((exec_fname && exec_fname[0] == '[')
|
|
|| exec_fname_length<=0) {
|
|
/* [no active file] or no path */
|
|
pathbuf = estrdup(path);
|
|
} else {
|
|
pathbuf = (char *) emalloc(exec_fname_length + path_length +1 +1);
|
|
memcpy(pathbuf, path, path_length);
|
|
pathbuf[path_length] = DEFAULT_DIR_SEPARATOR;
|
|
memcpy(pathbuf+path_length+1, exec_fname, exec_fname_length);
|
|
pathbuf[path_length + exec_fname_length +1] = '\0';
|
|
}
|
|
} else {
|
|
pathbuf = estrdup(path);
|
|
}
|
|
|
|
ptr = pathbuf;
|
|
|
|
while (ptr && *ptr) {
|
|
end = strchr(ptr, DEFAULT_DIR_SEPARATOR);
|
|
if (end != NULL) {
|
|
*end = '\0';
|
|
end++;
|
|
}
|
|
snprintf(trypath, MAXPATHLEN, "%s/%s", ptr, filename);
|
|
if (PG(safe_mode)) {
|
|
if (VCWD_STAT(trypath, &sb) == 0) {
|
|
/* file exists ... check permission */
|
|
if ((php_check_safe_mode_include_dir(trypath TSRMLS_CC) == 0) ||
|
|
php_checkuid(trypath, mode, CHECKUID_CHECK_MODE_PARAM)) {
|
|
/* UID ok, or trypath is in safe_mode_include_dir */
|
|
stream = php_stream_fopen_rel(trypath, mode, opened_path);
|
|
} else {
|
|
stream = NULL;
|
|
}
|
|
|
|
efree(pathbuf);
|
|
return stream;
|
|
}
|
|
}
|
|
stream = php_stream_fopen_rel(trypath, mode, opened_path);
|
|
if (stream) {
|
|
efree(pathbuf);
|
|
return stream;
|
|
}
|
|
ptr = end;
|
|
} /* end provided path */
|
|
|
|
efree(pathbuf);
|
|
return NULL;
|
|
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_fopen */
|
|
PHPAPI php_stream *_php_stream_fopen(const char *filename, const char *mode, char **opened_path STREAMS_DC TSRMLS_DC)
|
|
{
|
|
FILE *fp;
|
|
char *realpath = NULL;
|
|
|
|
realpath = expand_filepath(filename, NULL TSRMLS_CC);
|
|
|
|
fp = fopen(realpath, mode);
|
|
|
|
if (fp) {
|
|
php_stream *ret = php_stream_fopen_from_file_rel(fp, mode);
|
|
|
|
if (ret) {
|
|
if (opened_path) {
|
|
*opened_path = realpath;
|
|
realpath = NULL;
|
|
}
|
|
if (realpath)
|
|
efree(realpath);
|
|
|
|
return ret;
|
|
}
|
|
|
|
fclose(fp);
|
|
}
|
|
efree(realpath);
|
|
return NULL;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ STDIO with fopencookie */
|
|
#if HAVE_FOPENCOOKIE
|
|
static ssize_t stream_cookie_reader(void *cookie, char *buffer, size_t size)
|
|
{
|
|
ssize_t ret;
|
|
TSRMLS_FETCH();
|
|
ret = php_stream_read(((php_stream *)cookie), buffer, size);
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t stream_cookie_writer(void *cookie, const char *buffer, size_t size)
|
|
{
|
|
TSRMLS_FETCH();
|
|
return php_stream_write(((php_stream *)cookie), (char *)buffer, size);
|
|
}
|
|
|
|
static int stream_cookie_seeker(void *cookie, off_t position, int whence)
|
|
{
|
|
TSRMLS_FETCH();
|
|
|
|
return php_stream_seek((php_stream *)cookie, position, whence);
|
|
}
|
|
|
|
static int stream_cookie_closer(void *cookie)
|
|
{
|
|
php_stream *stream = (php_stream*)cookie;
|
|
TSRMLS_FETCH();
|
|
|
|
/* prevent recursion */
|
|
stream->fclose_stdiocast = PHP_STREAM_FCLOSE_NONE;
|
|
return php_stream_close(stream);
|
|
}
|
|
|
|
static COOKIE_IO_FUNCTIONS_T stream_cookie_functions =
|
|
{
|
|
stream_cookie_reader, stream_cookie_writer,
|
|
stream_cookie_seeker, stream_cookie_closer
|
|
};
|
|
#else
|
|
/* TODO: use socketpair() to emulate fopencookie, as suggested by Hartmut ? */
|
|
#endif
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_cast */
|
|
PHPAPI int _php_stream_cast(php_stream *stream, int castas, void **ret, int show_err TSRMLS_DC)
|
|
{
|
|
int flags = castas & PHP_STREAM_CAST_MASK;
|
|
castas &= ~PHP_STREAM_CAST_MASK;
|
|
|
|
if (castas == PHP_STREAM_AS_STDIO) {
|
|
if (stream->stdiocast) {
|
|
if (ret) {
|
|
*ret = stream->stdiocast;
|
|
}
|
|
goto exit_success;
|
|
}
|
|
|
|
/* if the stream is a stdio stream let's give it a chance to respond
|
|
* first, to avoid doubling up the layers of stdio with an fopencookie */
|
|
if (php_stream_is(stream, PHP_STREAM_IS_STDIO) &&
|
|
stream->ops->cast &&
|
|
stream->ops->cast(stream, castas, ret TSRMLS_CC) == SUCCESS)
|
|
{
|
|
goto exit_success;
|
|
}
|
|
|
|
#if HAVE_FOPENCOOKIE
|
|
/* if just checking, say yes we can be a FILE*, but don't actually create it yet */
|
|
if (ret == NULL)
|
|
goto exit_success;
|
|
|
|
*ret = fopencookie(stream, stream->mode, stream_cookie_functions);
|
|
|
|
if (*ret != NULL) {
|
|
off_t pos;
|
|
|
|
stream->fclose_stdiocast = PHP_STREAM_FCLOSE_FOPENCOOKIE;
|
|
|
|
/* If the stream position is not at the start, we need to force
|
|
* the stdio layer to believe it's real location. */
|
|
pos = php_stream_tell(stream);
|
|
if (pos > 0)
|
|
fseek(*ret, pos, SEEK_SET);
|
|
|
|
goto exit_success;
|
|
}
|
|
|
|
/* must be either:
|
|
a) programmer error
|
|
b) no memory
|
|
-> lets bail
|
|
*/
|
|
zend_error(E_ERROR, "%s(): fopencookie failed", get_active_function_name(TSRMLS_C));
|
|
return FAILURE;
|
|
#endif
|
|
|
|
}
|
|
if (stream->ops->cast && stream->ops->cast(stream, castas, ret TSRMLS_CC) == SUCCESS)
|
|
goto exit_success;
|
|
|
|
if (show_err) {
|
|
/* these names depend on the values of the PHP_STREAM_AS_XXX defines in php_streams.h */
|
|
static const char *cast_names[3] = {
|
|
"STDIO FILE*", "File Descriptor", "Socket Descriptor"
|
|
};
|
|
|
|
zend_error(E_WARNING, "%s(): cannot represent a stream of type %s as a %s",
|
|
get_active_function_name(TSRMLS_C),
|
|
stream->ops->label,
|
|
cast_names[castas]
|
|
);
|
|
}
|
|
|
|
return FAILURE;
|
|
|
|
exit_success:
|
|
if (castas == PHP_STREAM_AS_STDIO && ret)
|
|
stream->stdiocast = *ret;
|
|
|
|
if (flags & PHP_STREAM_CAST_RELEASE) {
|
|
/* Something other than php_stream_close will be closing
|
|
* the underlying handle, so we should free the stream handle/data
|
|
* here now. The stream may not be freed immediately (in the case
|
|
* of fopencookie), but the caller should still not touch their
|
|
* original stream pointer in any case. */
|
|
if (stream->fclose_stdiocast != PHP_STREAM_FCLOSE_FOPENCOOKIE) {
|
|
/* ask the implementation to release resources other than
|
|
* the underlying handle */
|
|
php_stream_free(stream, PHP_STREAM_FREE_PRESERVE_HANDLE | PHP_STREAM_FREE_CLOSE);
|
|
}
|
|
}
|
|
|
|
return SUCCESS;
|
|
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ wrapper init and registration */
|
|
int php_init_stream_wrappers(TSRMLS_D)
|
|
{
|
|
return zend_hash_init(&url_stream_wrappers_hash, 0, NULL, NULL, 1);
|
|
}
|
|
|
|
int php_shutdown_stream_wrappers(TSRMLS_D)
|
|
{
|
|
zend_hash_destroy(&url_stream_wrappers_hash);
|
|
return SUCCESS;
|
|
}
|
|
|
|
PHPAPI int php_register_url_stream_wrapper(char *protocol, php_stream_wrapper *wrapper TSRMLS_DC)
|
|
{
|
|
return zend_hash_add(&url_stream_wrappers_hash, protocol, strlen(protocol), wrapper, sizeof(*wrapper), NULL);
|
|
}
|
|
|
|
PHPAPI int php_unregister_url_stream_wrapper(char *protocol TSRMLS_DC)
|
|
{
|
|
return zend_hash_del(&url_stream_wrappers_hash, protocol, strlen(protocol));
|
|
}
|
|
/* }}} */
|
|
|
|
|
|
static size_t php_plain_files_dirstream_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
|
|
{
|
|
DIR *dir = (DIR*)stream->abstract;
|
|
/* avoid libc5 readdir problems */
|
|
char entry[sizeof(struct dirent)+MAXPATHLEN];
|
|
struct dirent *result = (struct dirent *)&entry;
|
|
php_stream_dirent *ent = (php_stream_dirent*)buf;
|
|
|
|
/* avoid problems if someone mis-uses the stream */
|
|
if (count != sizeof(php_stream_dirent))
|
|
return 0;
|
|
|
|
if (php_readdir_r(dir, (struct dirent *)entry, &result) == 0 && result) {
|
|
PHP_STRLCPY(ent->d_name, result->d_name, sizeof(ent->d_name), strlen(result->d_name));
|
|
return sizeof(php_stream_dirent);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int php_plain_files_dirstream_close(php_stream *stream, int close_handle TSRMLS_DC)
|
|
{
|
|
return closedir((DIR *)stream->abstract);
|
|
}
|
|
|
|
static int php_plain_files_dirstream_rewind(php_stream *stream, off_t offset, int whence TSRMLS_DC)
|
|
{
|
|
rewinddir((DIR *)stream->abstract);
|
|
return 0;
|
|
}
|
|
|
|
static php_stream_ops php_plain_files_dirstream_ops = {
|
|
NULL, php_plain_files_dirstream_read,
|
|
php_plain_files_dirstream_close, NULL,
|
|
"dir",
|
|
php_plain_files_dirstream_rewind,
|
|
NULL, NULL,
|
|
NULL
|
|
};
|
|
|
|
static php_stream *php_plain_files_dir_opener(php_stream_wrapper *wrapper, char *path, char *mode,
|
|
int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC)
|
|
{
|
|
DIR *dir = NULL;
|
|
php_stream *stream = NULL;
|
|
|
|
if (php_check_open_basedir(path TSRMLS_CC)) {
|
|
return NULL;
|
|
}
|
|
|
|
if (PG(safe_mode) &&(!php_checkuid(path, NULL, CHECKUID_ALLOW_ONLY_FILE))) {
|
|
return NULL;
|
|
}
|
|
|
|
dir = VCWD_OPENDIR(path);
|
|
|
|
#ifdef PHP_WIN32
|
|
if (dir && dir->finished) {
|
|
closedir(dir);
|
|
dir = NULL;
|
|
}
|
|
#endif
|
|
if (dir) {
|
|
stream = php_stream_alloc(&php_plain_files_dirstream_ops, dir, 0, mode);
|
|
if (stream == NULL)
|
|
closedir(dir);
|
|
}
|
|
|
|
return stream;
|
|
}
|
|
|
|
|
|
|
|
static php_stream *php_plain_files_stream_opener(php_stream_wrapper *wrapper, char *path, char *mode,
|
|
int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC)
|
|
{
|
|
if ((options & USE_PATH) && PG(include_path) != NULL) {
|
|
return php_stream_fopen_with_path_rel(path, mode, PG(include_path), opened_path);
|
|
}
|
|
|
|
if ((options & ENFORCE_SAFE_MODE) && PG(safe_mode) && (!php_checkuid(path, mode, CHECKUID_CHECK_MODE_PARAM)))
|
|
return NULL;
|
|
|
|
return php_stream_fopen_rel(path, mode, opened_path);
|
|
}
|
|
|
|
static int php_plain_files_url_stater(php_stream_wrapper *wrapper, char *url, php_stream_statbuf *ssb TSRMLS_DC)
|
|
{
|
|
return VCWD_STAT(url, &ssb->sb);
|
|
}
|
|
|
|
static php_stream_wrapper_ops php_plain_files_wrapper_ops = {
|
|
php_plain_files_stream_opener,
|
|
NULL,
|
|
NULL,
|
|
php_plain_files_url_stater,
|
|
php_plain_files_dir_opener
|
|
};
|
|
|
|
static php_stream_wrapper php_plain_files_wrapper = {
|
|
&php_plain_files_wrapper_ops,
|
|
NULL,
|
|
0
|
|
};
|
|
|
|
PHPAPI php_stream_wrapper *php_stream_locate_url_wrapper(const char *path, char **path_for_open, int options TSRMLS_DC)
|
|
{
|
|
php_stream_wrapper *wrapper = NULL;
|
|
const char *p, *protocol = NULL;
|
|
int n = 0;
|
|
|
|
if (path_for_open)
|
|
*path_for_open = (char*)path;
|
|
|
|
if (options & IGNORE_URL)
|
|
return (options & STREAM_LOCATE_WRAPPERS_ONLY) ? NULL : &php_plain_files_wrapper;
|
|
|
|
for (p = path; isalnum((int)*p) || *p == '+' || *p == '-' || *p == '.'; p++) {
|
|
n++;
|
|
}
|
|
|
|
if ((*p == ':') && (n > 1) && !strncmp("://", p, 3)) {
|
|
protocol = path;
|
|
} else if (strncasecmp(path, "zlib:", 5) == 0) {
|
|
/* BC with older php scripts and zlib wrapper */
|
|
protocol = "compress.zlib";
|
|
n = 13;
|
|
zend_error(E_WARNING, "Use of \"zlib:\" wrapper is deprecated; please use \"compress.zlib://\" instead.");
|
|
}
|
|
|
|
if (protocol) {
|
|
if (FAILURE == zend_hash_find(&url_stream_wrappers_hash, (char*)protocol, n, (void**)&wrapper)) {
|
|
char wrapper_name[32];
|
|
|
|
if (n >= sizeof(wrapper_name))
|
|
n = sizeof(wrapper_name) - 1;
|
|
PHP_STRLCPY(wrapper_name, protocol, sizeof(wrapper_name), n);
|
|
|
|
zend_error(E_NOTICE, "Unable to find the wrapper \"%s\" - did you forget to enable it when you configured PHP?",
|
|
wrapper_name);
|
|
|
|
wrapper = NULL;
|
|
protocol = NULL;
|
|
}
|
|
}
|
|
/* TODO: curl based streams probably support file:// properly */
|
|
if (!protocol || !strncasecmp(protocol, "file", n)) {
|
|
if (protocol && path[n+1] == '/' && path[n+2] == '/') {
|
|
if (options & REPORT_ERRORS)
|
|
zend_error(E_WARNING, "remote host file access not supported, %s", path);
|
|
return NULL;
|
|
}
|
|
if (protocol && path_for_open)
|
|
*path_for_open = (char*)path + n + 1;
|
|
|
|
/* fall back on regular file access */
|
|
return (options & STREAM_LOCATE_WRAPPERS_ONLY) ? NULL : &php_plain_files_wrapper;
|
|
}
|
|
|
|
if (wrapper && wrapper->is_url && !PG(allow_url_fopen)) {
|
|
if (options & REPORT_ERRORS)
|
|
zend_error(E_WARNING, "URL file-access is disabled in the server configuration");
|
|
return NULL;
|
|
}
|
|
|
|
return wrapper;
|
|
}
|
|
|
|
PHPAPI int _php_stream_stat_path(char *path, php_stream_statbuf *ssb TSRMLS_DC)
|
|
{
|
|
php_stream_wrapper *wrapper = NULL;
|
|
char *path_to_open = path;
|
|
|
|
wrapper = php_stream_locate_url_wrapper(path, &path_to_open, ENFORCE_SAFE_MODE TSRMLS_CC);
|
|
if (wrapper && wrapper->wops->url_stat) {
|
|
return wrapper->wops->url_stat(wrapper, path_to_open, ssb TSRMLS_CC);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/* {{{ php_stream_opendir */
|
|
PHPAPI php_stream *_php_stream_opendir(char *path, int options,
|
|
php_stream_context *context STREAMS_DC TSRMLS_DC)
|
|
{
|
|
php_stream *stream = NULL;
|
|
php_stream_wrapper *wrapper = NULL;
|
|
char *path_to_open;
|
|
|
|
if (!path || !*path)
|
|
return NULL;
|
|
|
|
path_to_open = path;
|
|
|
|
wrapper = php_stream_locate_url_wrapper(path, &path_to_open, options TSRMLS_CC);
|
|
|
|
if (wrapper && wrapper->wops->dir_opener) {
|
|
stream = wrapper->wops->dir_opener(wrapper,
|
|
path_to_open, "r", options, NULL,
|
|
context STREAMS_REL_CC TSRMLS_CC);
|
|
|
|
if (stream)
|
|
stream->wrapper = wrapper;
|
|
}
|
|
|
|
if (stream == NULL && (options & REPORT_ERRORS)) {
|
|
char *tmp = estrdup(path);
|
|
char *msg;
|
|
|
|
if (wrapper)
|
|
msg = strerror(errno);
|
|
else
|
|
msg = "no suitable wrapper could be found";
|
|
|
|
php_strip_url_passwd(tmp);
|
|
zend_error(E_WARNING, "%s(\"%s\") - %s", get_active_function_name(TSRMLS_C), tmp, msg);
|
|
efree(tmp);
|
|
}
|
|
return stream;
|
|
}
|
|
/* }}} */
|
|
|
|
PHPAPI php_stream_dirent *_php_stream_readdir(php_stream *dirstream, php_stream_dirent *ent TSRMLS_DC)
|
|
{
|
|
if (sizeof(php_stream_dirent) == php_stream_read(dirstream, (char*)ent, sizeof(php_stream_dirent)))
|
|
return ent;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
PHPAPI void php_stream_wrapper_log_error(php_stream_wrapper *wrapper, int options TSRMLS_DC, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
char *buffer = NULL;
|
|
|
|
va_start(args, fmt);
|
|
vspprintf(&buffer, 0, fmt, args);
|
|
va_end(args);
|
|
|
|
if (options & REPORT_ERRORS || wrapper == NULL) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, buffer);
|
|
efree(buffer);
|
|
} else {
|
|
/* append to stack */
|
|
wrapper->err_stack = erealloc(wrapper->err_stack, (wrapper->err_count + 1) * sizeof(char *));
|
|
if (wrapper->err_stack)
|
|
wrapper->err_stack[wrapper->err_count++] = buffer;
|
|
}
|
|
}
|
|
|
|
/* {{{ php_stream_open_wrapper_ex */
|
|
PHPAPI php_stream *_php_stream_open_wrapper_ex(char *path, char *mode, int options,
|
|
char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC)
|
|
{
|
|
php_stream *stream = NULL;
|
|
php_stream_wrapper *wrapper = NULL;
|
|
char *path_to_open;
|
|
|
|
if (opened_path)
|
|
*opened_path = NULL;
|
|
|
|
if (!path || !*path)
|
|
return NULL;
|
|
|
|
path_to_open = path;
|
|
|
|
wrapper = php_stream_locate_url_wrapper(path, &path_to_open, options TSRMLS_CC);
|
|
|
|
if (wrapper) {
|
|
|
|
/* prepare error stack */
|
|
wrapper->err_count = 0;
|
|
wrapper->err_stack = NULL;
|
|
|
|
stream = wrapper->wops->stream_opener(wrapper,
|
|
path_to_open, mode, options ^ REPORT_ERRORS,
|
|
opened_path, context STREAMS_REL_CC TSRMLS_CC);
|
|
if (stream)
|
|
stream->wrapper = wrapper;
|
|
}
|
|
|
|
if (stream != NULL && (options & STREAM_MUST_SEEK)) {
|
|
php_stream *newstream;
|
|
|
|
switch(php_stream_make_seekable_rel(stream, &newstream, PHP_STREAM_NO_PREFERENCE)) {
|
|
case PHP_STREAM_UNCHANGED:
|
|
return stream;
|
|
case PHP_STREAM_RELEASED:
|
|
return newstream;
|
|
default:
|
|
php_stream_close(stream);
|
|
stream = NULL;
|
|
if (options & REPORT_ERRORS) {
|
|
char *tmp = estrdup(path);
|
|
php_strip_url_passwd(tmp);
|
|
php_error_docref1(NULL TSRMLS_CC, tmp, E_WARNING, "could not make seekable - %s",
|
|
tmp, strerror(errno));
|
|
efree(tmp);
|
|
|
|
options ^= REPORT_ERRORS;
|
|
}
|
|
}
|
|
}
|
|
if (stream == NULL && (options & REPORT_ERRORS)) {
|
|
char *tmp = estrdup(path);
|
|
char *msg;
|
|
int free_msg = 0;
|
|
|
|
if (wrapper) {
|
|
if (wrapper->err_count) {
|
|
int i;
|
|
size_t l;
|
|
int brlen;
|
|
char *br;
|
|
|
|
if (PG(html_errors)) {
|
|
brlen = 7;
|
|
br = "<br />\n";
|
|
} else {
|
|
brlen = 1;
|
|
br = "\n";
|
|
}
|
|
|
|
for (i = 0, l = 0; i < wrapper->err_count; i++) {
|
|
l += strlen(wrapper->err_stack[i]);
|
|
if (i < wrapper->err_count - 1)
|
|
l += brlen;
|
|
}
|
|
msg = emalloc(l + 1);
|
|
msg[0] = '\0';
|
|
for (i = 0; i < wrapper->err_count; i++) {
|
|
strcat(msg, wrapper->err_stack[i]);
|
|
if (i < wrapper->err_count - 1)
|
|
strcat(msg, br);
|
|
}
|
|
|
|
free_msg = 1;
|
|
} else {
|
|
msg = strerror(errno);
|
|
}
|
|
} else {
|
|
msg = "no suitable wrapper could be found";
|
|
}
|
|
|
|
php_strip_url_passwd(tmp);
|
|
php_error_docref1(NULL TSRMLS_CC, tmp, E_WARNING, "failed to create stream: %s", msg);
|
|
efree(tmp);
|
|
if (free_msg)
|
|
efree(msg);
|
|
}
|
|
if (wrapper) {
|
|
/* tidy up the error stack */
|
|
int i;
|
|
|
|
for (i = 0; i < wrapper->err_count; i++)
|
|
efree(wrapper->err_stack[i]);
|
|
if (wrapper->err_stack)
|
|
efree(wrapper->err_stack);
|
|
wrapper->err_stack = NULL;
|
|
}
|
|
return stream;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_open_wrapper_as_file */
|
|
PHPAPI FILE * _php_stream_open_wrapper_as_file(char *path, char *mode, int options, char **opened_path STREAMS_DC TSRMLS_DC)
|
|
{
|
|
FILE *fp = NULL;
|
|
php_stream *stream = NULL;
|
|
|
|
stream = php_stream_open_wrapper_rel(path, mode, options|STREAM_WILL_CAST, opened_path);
|
|
|
|
if (stream == NULL)
|
|
return NULL;
|
|
|
|
if (php_stream_cast(stream, PHP_STREAM_AS_STDIO|PHP_STREAM_CAST_TRY_HARD|PHP_STREAM_CAST_RELEASE,
|
|
(void**)&fp, REPORT_ERRORS) == FAILURE)
|
|
{
|
|
php_stream_close(stream);
|
|
if (opened_path && *opened_path)
|
|
efree(*opened_path);
|
|
return NULL;
|
|
}
|
|
return fp;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_make_seekable */
|
|
PHPAPI int _php_stream_make_seekable(php_stream *origstream, php_stream **newstream, int flags STREAMS_DC TSRMLS_DC)
|
|
{
|
|
assert(newstream != NULL);
|
|
|
|
*newstream = NULL;
|
|
|
|
if (origstream->ops->seek != NULL) {
|
|
*newstream = origstream;
|
|
return PHP_STREAM_UNCHANGED;
|
|
}
|
|
|
|
/* Use a tmpfile and copy the old streams contents into it */
|
|
|
|
if (flags & PHP_STREAM_PREFER_STDIO)
|
|
*newstream = php_stream_fopen_tmpfile();
|
|
else
|
|
*newstream = php_stream_temp_new();
|
|
|
|
if (*newstream == NULL)
|
|
return PHP_STREAM_FAILED;
|
|
|
|
if (php_stream_copy_to_stream(origstream, *newstream, PHP_STREAM_COPY_ALL) == 0) {
|
|
php_stream_close(*newstream);
|
|
*newstream = NULL;
|
|
return PHP_STREAM_CRITICAL;
|
|
}
|
|
|
|
php_stream_close(origstream);
|
|
php_stream_seek(*newstream, 0, SEEK_SET);
|
|
|
|
return PHP_STREAM_RELEASED;
|
|
}
|
|
/* }}} */
|
|
|
|
PHPAPI php_stream_context *php_stream_context_set(php_stream *stream, php_stream_context *context)
|
|
{
|
|
php_stream_context *oldcontext = stream->context;
|
|
stream->context = context;
|
|
return oldcontext;
|
|
}
|
|
|
|
PHPAPI void php_stream_notification_notify(php_stream_context *context, int notifycode, int severity,
|
|
char *xmsg, int xcode, size_t bytes_sofar, size_t bytes_max, void * ptr TSRMLS_DC)
|
|
{
|
|
if (context && context->notifier)
|
|
context->notifier->func(context, notifycode, severity, xmsg, xcode, bytes_sofar, bytes_max, ptr TSRMLS_CC);
|
|
}
|
|
|
|
PHPAPI void php_stream_context_free(php_stream_context *context)
|
|
{
|
|
zval_ptr_dtor(&context->options);
|
|
efree(context);
|
|
}
|
|
|
|
PHPAPI php_stream_context *php_stream_context_alloc(void)
|
|
{
|
|
php_stream_context *context;
|
|
|
|
context = ecalloc(1, sizeof(php_stream_context));
|
|
MAKE_STD_ZVAL(context->options);
|
|
array_init(context->options);
|
|
|
|
return context;
|
|
}
|
|
|
|
PHPAPI php_stream_notifier *php_stream_notification_alloc(void)
|
|
{
|
|
return ecalloc(1, sizeof(php_stream_notifier));
|
|
}
|
|
|
|
PHPAPI void php_stream_notification_free(php_stream_notifier *notifier)
|
|
{
|
|
efree(notifier);
|
|
}
|
|
|
|
PHPAPI int php_stream_context_get_option(php_stream_context *context,
|
|
const char *wrappername, const char *optionname, zval **optionvalue)
|
|
{
|
|
zval **wrapperhash;
|
|
|
|
if (FAILURE == zend_hash_find(Z_ARRVAL_P(context->options), (char*)wrappername, strlen(wrappername)+1, (void**)&wrapperhash))
|
|
return FAILURE;
|
|
|
|
return zend_hash_find(Z_ARRVAL_PP(wrapperhash), (char*)optionname, strlen(optionname)+1, (void**)&optionvalue);
|
|
}
|
|
|
|
PHPAPI int php_stream_context_set_option(php_stream_context *context,
|
|
const char *wrappername, const char *optionname, zval *optionvalue)
|
|
{
|
|
zval **wrapperhash;
|
|
|
|
if (FAILURE == zend_hash_find(Z_ARRVAL_P(context->options), (char*)wrappername, strlen(wrappername)+1, (void**)&wrapperhash)) {
|
|
|
|
MAKE_STD_ZVAL(*wrapperhash);
|
|
array_init(*wrapperhash);
|
|
if (FAILURE == zend_hash_update(Z_ARRVAL_P(context->options), (char*)wrappername, strlen(wrappername)+1, (void**)wrapperhash, sizeof(zval *), NULL))
|
|
return FAILURE;
|
|
|
|
ZVAL_ADDREF(optionvalue);
|
|
}
|
|
return zend_hash_update(Z_ARRVAL_PP(wrapperhash), (char*)optionname, strlen(optionname)+1, (void**)&optionvalue, sizeof(zval *), NULL);
|
|
}
|
|
|
|
PHPAPI HashTable *php_stream_get_url_stream_wrappers_hash()
|
|
{
|
|
return &url_stream_wrappers_hash;
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: noet sw=4 ts=4 fdm=marker
|
|
* vim<600: noet sw=4 ts=4
|
|
*/
|