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eb44e642b1
Use the global conversion error handlers for output conversion (for now) We may want to make this customizable on a per-stream basis via context param later on...
2497 lines
70 KiB
C
Executable file
2497 lines
70 KiB
C
Executable file
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2006 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 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 through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.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: 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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#include "ext/standard/php_string.h" /* for php_memnstr, used by php_stream_get_record() */
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#include <stddef.h>
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#include <fcntl.h>
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#include "php_streams_int.h"
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/* {{{ resource and registration code */
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/* Global wrapper hash, copied to FG(stream_wrappers) on registration of volatile wrapper */
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static HashTable url_stream_wrappers_hash;
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static int le_stream = FAILURE; /* true global */
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static int le_pstream = FAILURE; /* true global */
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static int le_stream_filter = FAILURE; /* true global */
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PHPAPI int php_file_le_stream(void)
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{
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return le_stream;
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}
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PHPAPI int php_file_le_pstream(void)
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{
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return le_pstream;
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}
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PHPAPI int php_file_le_stream_filter(void)
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{
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return le_stream_filter;
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}
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PHPAPI HashTable *_php_stream_get_url_stream_wrappers_hash(TSRMLS_D)
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{
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return (FG(stream_wrappers) ? FG(stream_wrappers) : &url_stream_wrappers_hash);
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}
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PHPAPI HashTable *php_stream_get_url_stream_wrappers_hash_global(void)
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{
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return &url_stream_wrappers_hash;
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}
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static int _php_stream_release_context(zend_rsrc_list_entry *le, void *pContext TSRMLS_DC)
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{
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if (le->ptr == pContext) {
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return --le->refcount == 0;
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}
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return 0;
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}
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static int forget_persistent_resource_id_numbers(zend_rsrc_list_entry *rsrc TSRMLS_DC)
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{
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php_stream *stream;
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if (Z_TYPE_P(rsrc) != le_pstream) {
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return 0;
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}
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stream = (php_stream*)rsrc->ptr;
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#if STREAM_DEBUG
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fprintf(stderr, "forget_persistent: %s:%p\n", stream->ops->label, stream);
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#endif
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stream->rsrc_id = FAILURE;
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if (stream->context) {
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zend_hash_apply_with_argument(&EG(regular_list),
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(apply_func_arg_t) _php_stream_release_context,
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stream->context TSRMLS_CC);
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stream->context = NULL;
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}
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return 0;
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}
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PHP_RSHUTDOWN_FUNCTION(streams)
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{
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zend_hash_apply(&EG(persistent_list), (apply_func_t)forget_persistent_resource_id_numbers TSRMLS_CC);
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return SUCCESS;
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}
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PHPAPI int php_stream_from_persistent_id(const char *persistent_id, php_stream **stream TSRMLS_DC)
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{
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zend_rsrc_list_entry *le;
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if (zend_hash_find(&EG(persistent_list), (char*)persistent_id, strlen(persistent_id)+1, (void*) &le) == SUCCESS) {
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if (Z_TYPE_P(le) == le_pstream) {
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if (stream) {
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*stream = (php_stream*)le->ptr;
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le->refcount++;
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(*stream)->rsrc_id = ZEND_REGISTER_RESOURCE(NULL, *stream, le_pstream);
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}
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return PHP_STREAM_PERSISTENT_SUCCESS;
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}
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return PHP_STREAM_PERSISTENT_FAILURE;
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}
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return PHP_STREAM_PERSISTENT_NOT_EXIST;
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}
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/* }}} */
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/* {{{ wrapper error reporting */
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void php_stream_display_wrapper_errors(php_stream_wrapper *wrapper, const char *path, const char *caption TSRMLS_DC)
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{
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char *tmp = estrdup(path);
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char *msg;
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int free_msg = 0;
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if (wrapper) {
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if (wrapper->err_count > 0) {
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int i;
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size_t l;
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int brlen;
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char *br;
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if (PG(html_errors)) {
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brlen = 7;
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br = "<br />\n";
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} else {
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brlen = 1;
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br = "\n";
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}
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for (i = 0, l = 0; i < wrapper->err_count; i++) {
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l += strlen(wrapper->err_stack[i]);
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if (i < wrapper->err_count - 1) {
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l += brlen;
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}
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}
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msg = emalloc(l + 1);
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msg[0] = '\0';
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for (i = 0; i < wrapper->err_count; i++) {
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strcat(msg, wrapper->err_stack[i]);
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if (i < wrapper->err_count - 1) {
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strcat(msg, br);
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}
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}
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free_msg = 1;
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} else {
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msg = strerror(errno);
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}
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} else {
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msg = "no suitable wrapper could be found";
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}
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php_strip_url_passwd(tmp);
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php_error_docref1(NULL TSRMLS_CC, tmp, E_WARNING, "%s: %s", caption, msg);
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efree(tmp);
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if (free_msg) {
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efree(msg);
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}
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}
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void php_stream_tidy_wrapper_error_log(php_stream_wrapper *wrapper TSRMLS_DC)
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{
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if (wrapper) {
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/* tidy up the error stack */
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int i;
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for (i = 0; i < wrapper->err_count; i++) {
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efree(wrapper->err_stack[i]);
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}
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if (wrapper->err_stack) {
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efree(wrapper->err_stack);
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}
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wrapper->err_stack = NULL;
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wrapper->err_count = 0;
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}
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}
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PHPAPI void php_stream_wrapper_log_error(php_stream_wrapper *wrapper, int options TSRMLS_DC, const char *fmt, ...)
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{
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va_list args;
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char *buffer = NULL;
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va_start(args, fmt);
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vspprintf(&buffer, 0, fmt, args);
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va_end(args);
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if (options & REPORT_ERRORS || wrapper == NULL) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", buffer);
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efree(buffer);
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} else {
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/* append to stack */
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wrapper->err_stack = erealloc(wrapper->err_stack, (wrapper->err_count + 1) * sizeof(char *));
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if (wrapper->err_stack) {
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wrapper->err_stack[wrapper->err_count++] = buffer;
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}
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}
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}
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/* }}} */
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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, const char *persistent_id, 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_id ? 1 : 0);
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memset(ret, 0, sizeof(php_stream));
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ret->readfilters.stream = ret;
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ret->writefilters.stream = ret;
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#if STREAM_DEBUG
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fprintf(stderr, "stream_alloc: %s:%p persistent=%s\n", ops->label, ret, persistent_id);
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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_id ? 1 : 0;
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ret->chunk_size = FG(def_chunk_size);
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if (FG(auto_detect_line_endings)) {
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ret->flags |= PHP_STREAM_FLAG_DETECT_EOL;
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}
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if (persistent_id) {
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zend_rsrc_list_entry le;
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Z_TYPE(le) = le_pstream;
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le.ptr = ret;
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le.refcount = 0;
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if (FAILURE == zend_hash_update(&EG(persistent_list), (char *)persistent_id,
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strlen(persistent_id) + 1,
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(void *)&le, sizeof(le), NULL)) {
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pefree(ret, 1);
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return NULL;
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}
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}
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ret->rsrc_id = ZEND_REGISTER_RESOURCE(NULL, ret, persistent_id ? le_pstream : 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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static int _php_stream_free_persistent(zend_rsrc_list_entry *le, void *pStream TSRMLS_DC)
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{
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return le->ptr == pStream;
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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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int remove_rsrc = 1;
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int preserve_handle = close_options & PHP_STREAM_FREE_PRESERVE_HANDLE ? 1 : 0;
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int release_cast = 1;
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#if STREAM_DEBUG
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fprintf(stderr, "stream_free: %s:%p[%s] in_free=%d opts=%08x\n", stream->ops->label, stream, stream->orig_path, stream->in_free, close_options);
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#endif
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/* recursion protection */
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if (stream->in_free) {
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return 1;
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}
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stream->in_free++;
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/* if we are releasing the stream only (and preserving the underlying handle),
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* we need to do things a little differently.
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* We are only ever called like this when the stream is cast to a FILE*
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* for include (or other similar) purposes.
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* */
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if (preserve_handle) {
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if (stream->fclose_stdiocast == PHP_STREAM_FCLOSE_FOPENCOOKIE) {
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/* If the stream was fopencookied, we must NOT touch anything
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* here, as the cookied stream relies on it all.
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* Instead, mark the stream as OK to auto-clean */
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php_stream_auto_cleanup(stream);
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stream->in_free--;
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return 0;
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}
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/* otherwise, make sure that we don't close the FILE* from a cast */
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release_cast = 0;
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}
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#if STREAM_DEBUG
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fprintf(stderr, "stream_free: %s:%p[%s] preserve_handle=%d release_cast=%d remove_rsrc=%d\n",
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stream->ops->label, stream, stream->orig_path, preserve_handle, release_cast, remove_rsrc);
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#endif
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/* make sure everything is saved */
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_php_stream_flush(stream, 1 TSRMLS_CC);
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/* If not called from the resource dtor, remove the stream from the resource list. */
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if ((close_options & PHP_STREAM_FREE_RSRC_DTOR) == 0 && remove_rsrc) {
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zend_list_delete(stream->rsrc_id);
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}
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/* Remove stream from any context link list */
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if (stream->context && stream->context->links) {
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php_stream_context_del_link(stream->context, stream);
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}
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if (close_options & PHP_STREAM_FREE_CALL_DTOR) {
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if (release_cast && 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, 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 (release_cast && 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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stream->fclose_stdiocast = PHP_STREAM_FCLOSE_NONE;
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}
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}
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if (close_options & PHP_STREAM_FREE_RELEASE_STREAM) {
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while (stream->readfilters.head) {
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php_stream_filter_remove(stream->readfilters.head, 1 TSRMLS_CC);
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}
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while (stream->writefilters.head) {
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php_stream_filter_remove(stream->writefilters.head, 1 TSRMLS_CC);
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}
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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 (stream->readbuf.v) {
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pefree(stream->readbuf.v, stream->is_persistent);
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stream->readbuf.v = NULL;
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}
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if (stream->is_persistent && (close_options & PHP_STREAM_FREE_PERSISTENT)) {
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/* we don't work with *stream but need its value for comparison */
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zend_hash_apply_with_argument(&EG(persistent_list), (apply_func_arg_t) _php_stream_free_persistent, stream TSRMLS_CC);
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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 *leakinfo;
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spprintf(&leakinfo, 0, __FILE__ "(%d) : Stream of type '%s' %p (path:%s) was not closed\n", __LINE__, stream->ops->label, stream, stream->orig_path);
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if (stream->orig_path) {
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pefree(stream->orig_path, stream->is_persistent);
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stream->orig_path = NULL;
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}
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# if defined(PHP_WIN32)
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OutputDebugString(leakinfo);
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# else
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fprintf(stderr, "%s", leakinfo);
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# endif
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efree(leakinfo);
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} else {
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if (stream->orig_path) {
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pefree(stream->orig_path, stream->is_persistent);
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stream->orig_path = NULL;
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}
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pefree(stream, stream->is_persistent);
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}
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#else
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if (stream->orig_path) {
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pefree(stream->orig_path, stream->is_persistent);
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stream->orig_path = NULL;
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}
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pefree(stream, stream->is_persistent);
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#endif
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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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/* size == full characters (char, UChar, or 2x UChar)
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TODO: Needs better handling of surrogate pairs */
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static void php_stream_fill_read_buffer(php_stream *stream, size_t size TSRMLS_DC)
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{
|
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if (stream->readpos == stream->writepos) {
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stream->readpos = stream->writepos = 0;
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}
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/* allocate/fill the buffer */
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if (stream->readfilters.head) {
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char *chunk_buf;
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int err_flag = 0;
|
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php_stream_bucket_brigade brig_in = { NULL, NULL }, brig_out = { NULL, NULL };
|
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php_stream_bucket_brigade *brig_inp = &brig_in, *brig_outp = &brig_out, *brig_swap;
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/* allocate a buffer for reading chunks */
|
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chunk_buf = emalloc(stream->chunk_size);
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|
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while (!err_flag && (stream->writepos - stream->readpos < (off_t)size)) {
|
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size_t justread = 0;
|
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int flags;
|
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php_stream_bucket *bucket;
|
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php_stream_filter_status_t status = PSFS_ERR_FATAL;
|
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php_stream_filter *filter;
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|
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/* read a chunk into a bucket */
|
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justread = stream->ops->read(stream, chunk_buf, stream->chunk_size TSRMLS_CC);
|
|
if (justread != (size_t)-1) {
|
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bucket = php_stream_bucket_new(stream, chunk_buf, justread, 0, 0 TSRMLS_CC);
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|
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/* after this call, bucket is owned by the brigade */
|
|
php_stream_bucket_append(brig_inp, bucket TSRMLS_CC);
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|
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flags = PSFS_FLAG_NORMAL;
|
|
} else {
|
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flags = stream->eof ? PSFS_FLAG_FLUSH_CLOSE : PSFS_FLAG_FLUSH_INC;
|
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}
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|
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/* wind the handle... */
|
|
for (filter = stream->readfilters.head; filter; filter = filter->next) {
|
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status = filter->fops->filter(stream, filter, brig_inp, brig_outp, NULL, flags TSRMLS_CC);
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|
|
if (status != PSFS_PASS_ON) {
|
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break;
|
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}
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|
|
/* brig_out becomes brig_in.
|
|
* brig_in will always be empty here, as the filter MUST attach any un-consumed buckets
|
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* to its own brigade */
|
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brig_swap = brig_inp;
|
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brig_inp = brig_outp;
|
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brig_outp = brig_swap;
|
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memset(brig_outp, 0, sizeof(*brig_outp));
|
|
}
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|
|
switch (status) {
|
|
case PSFS_PASS_ON:
|
|
/* we get here when the last filter in the chain has data to pass on.
|
|
* in this situation, we are passing the brig_in brigade into the
|
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* stream read buffer */
|
|
while (brig_inp->head) {
|
|
bucket = brig_inp->head;
|
|
if (bucket->buf_type != IS_UNICODE && stream->input_encoding) {
|
|
/* Stream expects unicode, convert using stream encoding */
|
|
php_stream_bucket_convert(bucket, IS_UNICODE, stream->input_encoding);
|
|
} else if (bucket->buf_type == IS_UNICODE && !stream->input_encoding) {
|
|
/* Stream expects binary, filter provided unicode, just take the buffer as is */
|
|
php_stream_bucket_convert_notranscode(bucket, IS_STRING);
|
|
}
|
|
/* Bucket type now matches stream type */
|
|
|
|
/* grow buffer to hold this bucket
|
|
* TODO: this can fail for persistent streams */
|
|
if (stream->readbuflen - stream->writepos < bucket->buflen) {
|
|
stream->readbuflen += bucket->buflen;
|
|
stream->readbuf.v = perealloc(stream->readbuf.v, PS_ULEN(stream->input_encoding, stream->readbuflen), stream->is_persistent);
|
|
}
|
|
memcpy(stream->readbuf.s + stream->writepos, bucket->buf.s, PS_ULEN(stream->input_encoding, bucket->buflen));
|
|
stream->writepos += bucket->buflen;
|
|
|
|
php_stream_bucket_unlink(bucket TSRMLS_CC);
|
|
php_stream_bucket_delref(bucket TSRMLS_CC);
|
|
}
|
|
break;
|
|
|
|
case PSFS_FEED_ME:
|
|
/* when a filter needs feeding, there is no brig_out to deal with.
|
|
* we simply continue the loop; if the caller needs more data,
|
|
* we will read again, otherwise out job is done here */
|
|
if (justread == 0) {
|
|
/* there is no data */
|
|
err_flag = 1;
|
|
break;
|
|
}
|
|
continue;
|
|
|
|
case PSFS_ERR_FATAL:
|
|
/* some fatal error. Theoretically, the stream is borked, so all
|
|
* further reads should fail. */
|
|
err_flag = 1;
|
|
break;
|
|
}
|
|
|
|
if (justread == 0 || justread == (size_t)-1) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
efree(chunk_buf);
|
|
} else if (stream->input_encoding) { /* Unfiltered Unicode stream */
|
|
/* is there enough data in the buffer ? */
|
|
if (stream->writepos - stream->readpos < (off_t)size) {
|
|
char *binbuf;
|
|
UChar *ubuf;
|
|
int binbuf_len, ubuf_len;
|
|
size_t toread = (size > stream->chunk_size) ? size : stream->chunk_size;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
/* Read stream data into temporary buffer, then convert to unicode
|
|
TODO: This can be improved */
|
|
binbuf = emalloc(toread + 1);
|
|
binbuf_len = stream->ops->read(stream, binbuf, toread TSRMLS_CC);
|
|
if (binbuf_len == (size_t)-1) {
|
|
/* Failure */
|
|
efree(binbuf);
|
|
return;
|
|
}
|
|
/* Convert to unicode */
|
|
zend_convert_to_unicode(stream->input_encoding, &ubuf, &ubuf_len, binbuf, binbuf_len, &status);
|
|
efree(binbuf);
|
|
|
|
/* reduce buffer memory consumption if possible, to avoid a realloc */
|
|
if (stream->readbuf.u && stream->readbuflen - stream->writepos < stream->chunk_size) {
|
|
memmove(stream->readbuf.u, stream->readbuf.u + stream->readpos, UBYTES(stream->readbuflen - stream->readpos));
|
|
stream->writepos -= stream->readpos;
|
|
stream->readpos = 0;
|
|
}
|
|
|
|
/* grow the buffer if required
|
|
* TODO: this can fail for persistent streams */
|
|
if (stream->readbuflen - stream->writepos < ubuf_len) {
|
|
stream->readbuflen += ((stream->chunk_size > ubuf_len) ? stream->chunk_size : ubuf_len);
|
|
stream->readbuf.u = (UChar*)perealloc(stream->readbuf.u, UBYTES(stream->readbuflen), stream->is_persistent);
|
|
}
|
|
|
|
memcpy(stream->readbuf.u + stream->writepos, ubuf, UBYTES(ubuf_len));
|
|
efree(ubuf);
|
|
stream->writepos += ubuf_len;
|
|
}
|
|
} else { /* Unfiltered Binary stream */
|
|
/* is there enough data in the buffer ? */
|
|
if (stream->writepos - stream->readpos < (off_t)size) {
|
|
size_t justread = 0;
|
|
|
|
/* reduce buffer memory consumption if possible, to avoid a realloc */
|
|
if (stream->readbuf.s && stream->readbuflen - stream->writepos < stream->chunk_size) {
|
|
memmove(stream->readbuf.s, stream->readbuf.s + stream->readpos, stream->writepos - stream->readpos);
|
|
stream->writepos -= stream->readpos;
|
|
stream->readpos = 0;
|
|
}
|
|
|
|
/* grow the buffer if required
|
|
* TODO: this can fail for persistent streams */
|
|
if (stream->readbuflen - stream->writepos < stream->chunk_size) {
|
|
stream->readbuflen += stream->chunk_size;
|
|
stream->readbuf.s = (char*)perealloc(stream->readbuf.s, stream->readbuflen, stream->is_persistent);
|
|
}
|
|
|
|
justread = stream->ops->read(stream, stream->readbuf.s + stream->writepos, stream->readbuflen - stream->writepos TSRMLS_CC);
|
|
if (justread != (size_t)-1 && justread != 0) {
|
|
stream->writepos += justread;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Reads binary data from stream, if the stream is unicode (text), the raw unicode data will be returned */
|
|
PHPAPI size_t _php_stream_read(php_stream *stream, char *buf, size_t size TSRMLS_DC)
|
|
{
|
|
size_t toread = 0, didread = 0;
|
|
|
|
while (size > 0) {
|
|
|
|
/* take from the read buffer first.
|
|
* It is possible that a buffered stream was switched to non-buffered, so we
|
|
* drain the remainder of the buffer before using the "raw" read mode for
|
|
* the excess */
|
|
if (stream->writepos - stream->readpos > 0) {
|
|
toread = PS_ULEN(stream->input_encoding, stream->writepos - stream->readpos);
|
|
|
|
if (toread > size) {
|
|
toread = size;
|
|
}
|
|
|
|
if (stream->input_encoding) {
|
|
/* Sloppy read, anyone using php_stream_read() on a unicode stream
|
|
* had better know what they're doing */
|
|
|
|
memcpy(buf, stream->readbuf.u + stream->readpos, toread);
|
|
stream->readpos += ceil(toread / UBYTES(1));
|
|
} else {
|
|
memcpy(buf, stream->readbuf.s + stream->readpos, toread);
|
|
stream->readpos += toread;
|
|
}
|
|
|
|
size -= toread;
|
|
buf += toread;
|
|
didread += toread;
|
|
}
|
|
|
|
/* ignore eof here; the underlying state might have changed */
|
|
if (size == 0) {
|
|
break;
|
|
}
|
|
|
|
if (!stream->readfilters.head && (stream->flags & PHP_STREAM_FLAG_NO_BUFFER || stream->chunk_size == 1)) {
|
|
toread = stream->ops->read(stream, buf, size TSRMLS_CC);
|
|
} else {
|
|
php_stream_fill_read_buffer(stream, size TSRMLS_CC);
|
|
|
|
toread = stream->writepos - stream->readpos;
|
|
if (toread > size) {
|
|
toread = size;
|
|
}
|
|
|
|
if (toread > 0) {
|
|
if (php_stream_reads_unicode(stream)) {
|
|
/* Sloppy read, anyone using php_stream_read() on a unicode stream
|
|
* had better know what they're doing */
|
|
|
|
memcpy(buf, stream->readbuf.u + stream->readpos, toread);
|
|
stream->readpos += ceil(toread / UBYTES(1));
|
|
} else {
|
|
memcpy(buf, stream->readbuf.s + stream->readpos, toread);
|
|
}
|
|
stream->readpos += toread;
|
|
}
|
|
}
|
|
if (toread > 0) {
|
|
didread += toread;
|
|
buf += toread;
|
|
size -= toread;
|
|
} else {
|
|
/* EOF, or temporary end of data (for non-blocking mode). */
|
|
break;
|
|
}
|
|
/* just break anyway, to avoid greedy read */
|
|
if (stream->wrapper != &php_plain_files_wrapper) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (didread > 0) {
|
|
stream->position += didread;
|
|
}
|
|
|
|
return didread;
|
|
}
|
|
|
|
/* Read unicode data from a stream. Returns failure (-1) if not a unicode stream */
|
|
PHPAPI size_t _php_stream_read_unicode(php_stream *stream, UChar *buf, int size, int maxchars TSRMLS_DC)
|
|
{
|
|
size_t toread = 0, didread = 0, string_length = 0;
|
|
|
|
if (!stream->input_encoding) {
|
|
return -1;
|
|
}
|
|
|
|
while (size > 0) {
|
|
/* take from the read buffer first.
|
|
* It is possible that a buffered stream was switched to non-buffered, so we
|
|
* drain the remainder of the buffer before using the "raw" read mode for
|
|
* the excess */
|
|
|
|
while (size > 0 && (toread = (stream->writepos - stream->readpos)) &&
|
|
(toread > 1 ||
|
|
!U16_IS_SURROGATE(stream->readbuf.u[stream->readpos]) ||
|
|
!U16_IS_SURROGATE_LEAD(stream->readbuf.u[stream->readpos]) )) {
|
|
int length;
|
|
|
|
if (toread > size) {
|
|
toread = size;
|
|
}
|
|
|
|
if (U16_IS_SURROGATE(stream->readbuf.u[stream->readpos + toread - 1]) &&
|
|
U16_IS_SURROGATE_LEAD(stream->readbuf.u[stream->readpos + toread - 1])) {
|
|
/* Don't split surrogates */
|
|
toread--;
|
|
if (!toread) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (maxchars > -1) {
|
|
length = u_countChar32(stream->readbuf.u + stream->readpos, toread);
|
|
if (string_length + length > maxchars) {
|
|
/* Don't read more U32 points than the caller asked for */
|
|
toread = 0;
|
|
length = size - string_length;
|
|
U16_FWD_N(stream->readbuf.u + stream->readpos, toread, stream->writepos - stream->readpos, length);
|
|
}
|
|
string_length += length;
|
|
}
|
|
|
|
memcpy(buf, stream->readbuf.u + stream->readpos, UBYTES(toread));
|
|
stream->readpos += toread;
|
|
size -= toread;
|
|
buf += toread;
|
|
didread += toread;
|
|
}
|
|
|
|
/* ignore eof here; the underlying state might have changed */
|
|
if (size == 0) {
|
|
break;
|
|
}
|
|
|
|
/* just break anyway, to avoid greedy read */
|
|
if (didread > 0 && (stream->wrapper != &php_plain_files_wrapper)) {
|
|
break;
|
|
}
|
|
|
|
php_stream_fill_read_buffer(stream, size * sizeof(UChar) TSRMLS_CC);
|
|
if (stream->writepos - stream->readpos <= 0) {
|
|
/* EOF, or temporary end of data (for non-blocking mode). */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (didread > 0) {
|
|
stream->position += didread;
|
|
}
|
|
|
|
return didread;
|
|
}
|
|
|
|
PHPAPI UChar *_php_stream_read_unicode_chars(php_stream *stream, int *pchars TSRMLS_DC)
|
|
{
|
|
int size = *pchars;
|
|
UChar *bufstart, *buf;
|
|
int buflen = size;
|
|
size_t toread = 0, didread = 0, string_length = 0;
|
|
|
|
if (!stream->input_encoding) {
|
|
return NULL;
|
|
}
|
|
|
|
/* Allocate for ideal size first, add more later if needed */
|
|
bufstart = buf = eumalloc(buflen + 1);
|
|
|
|
while (size > 0) {
|
|
/* take from the read buffer first.
|
|
* It is possible that a buffered stream was switched to non-buffered, so we
|
|
* drain the remainder of the buffer before using the "raw" read mode for
|
|
* the excess */
|
|
|
|
while (size > 0 && (toread = (stream->writepos - stream->readpos)) &&
|
|
(toread > 1 ||
|
|
!U16_IS_SURROGATE(stream->readbuf.u[stream->readpos]) ||
|
|
!U16_IS_SURROGATE_LEAD(stream->readbuf.u[stream->readpos]) )) {
|
|
int length;
|
|
|
|
if (toread > size) {
|
|
toread = size;
|
|
}
|
|
|
|
if (U16_IS_SURROGATE(stream->readbuf.u[stream->readpos + toread - 1]) &&
|
|
U16_IS_SURROGATE_LEAD(stream->readbuf.u[stream->readpos + toread - 1])) {
|
|
/* Don't split surrogates */
|
|
toread--;
|
|
if (!toread) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
length = u_countChar32(stream->readbuf.u + stream->readpos, toread);
|
|
if (string_length + length > size) {
|
|
/* Don't read more U32 points than the caller asked for */
|
|
toread = 0;
|
|
length = size - string_length;
|
|
U16_FWD_N(stream->readbuf.u + stream->readpos, toread, stream->writepos - stream->readpos, length);
|
|
}
|
|
|
|
if (toread > (buflen - didread)) {
|
|
/* We know we're in surrogated territory at this point, allocate aggressively */
|
|
int ofs = buf - bufstart;
|
|
buflen += size * 2;
|
|
bufstart = eurealloc(bufstart, buflen + 1);
|
|
buf = bufstart + ofs;
|
|
}
|
|
|
|
memcpy(buf, stream->readbuf.u + stream->readpos, UBYTES(toread));
|
|
stream->readpos += toread;
|
|
size -= toread;
|
|
buf += toread;
|
|
didread += toread;
|
|
string_length += length;
|
|
}
|
|
|
|
/* ignore eof here; the underlying state might have changed */
|
|
if (size == 0) {
|
|
break;
|
|
}
|
|
|
|
/* just break anyway, to avoid greedy read */
|
|
if (didread > 0 && (stream->wrapper != &php_plain_files_wrapper)) {
|
|
break;
|
|
}
|
|
|
|
php_stream_fill_read_buffer(stream, UBYTES(size) TSRMLS_CC);
|
|
if (stream->writepos - stream->readpos <= 0) {
|
|
/* EOF, or temporary end of data (for non-blocking mode). */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (didread > 0) {
|
|
stream->position += didread;
|
|
}
|
|
|
|
*pchars = string_length;
|
|
buf[0] = 0;
|
|
return bufstart;
|
|
}
|
|
|
|
PHPAPI int _php_stream_eof(php_stream *stream TSRMLS_DC)
|
|
{
|
|
/* if there is data in the buffer, it's not EOF */
|
|
if (stream->writepos - stream->readpos > 0) {
|
|
return 0;
|
|
}
|
|
|
|
/* use the configured timeout when checking eof */
|
|
if (!stream->eof && PHP_STREAM_OPTION_RETURN_ERR ==
|
|
php_stream_set_option(stream, PHP_STREAM_OPTION_CHECK_LIVENESS,
|
|
0, NULL)) {
|
|
stream->eof = 1;
|
|
}
|
|
|
|
return stream->eof;
|
|
}
|
|
|
|
PHPAPI int _php_stream_putc(php_stream *stream, int c TSRMLS_DC)
|
|
{
|
|
unsigned char buf = c;
|
|
|
|
if (php_stream_write(stream, &buf, 1) > 0) {
|
|
return 1;
|
|
}
|
|
return EOF;
|
|
}
|
|
|
|
PHPAPI int _php_stream_getc(php_stream *stream TSRMLS_DC)
|
|
{
|
|
char buf;
|
|
|
|
if (php_stream_read(stream, &buf, 1) > 0) {
|
|
return buf & 0xff;
|
|
}
|
|
return EOF;
|
|
}
|
|
|
|
PHPAPI int _php_stream_puts(php_stream *stream, char *buf TSRMLS_DC)
|
|
{
|
|
int len;
|
|
char newline[2] = "\n"; /* is this OK for Win? */
|
|
len = strlen(buf);
|
|
|
|
if (len > 0 && php_stream_write(stream, buf, len) && php_stream_write(stream, newline, 1)) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
PHPAPI int _php_stream_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC)
|
|
{
|
|
memset(ssb, 0, sizeof(*ssb));
|
|
|
|
/* if the stream was wrapped, allow the wrapper to stat it */
|
|
if (stream->wrapper && stream->wrapper->wops->stream_stat != NULL) {
|
|
return stream->wrapper->wops->stream_stat(stream->wrapper, stream, ssb TSRMLS_CC);
|
|
}
|
|
|
|
/* if the stream doesn't directly support stat-ing, return with failure.
|
|
* We could try and emulate this by casting to a FD and fstat-ing it,
|
|
* but since the fd might not represent the actual underlying content
|
|
* this would give bogus results. */
|
|
if (stream->ops->stat == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
return (stream->ops->stat)(stream, ssb TSRMLS_CC);
|
|
}
|
|
|
|
PHPAPI void *php_stream_locate_eol(php_stream *stream, zstr zbuf, int buf_len TSRMLS_DC)
|
|
{
|
|
size_t avail;
|
|
char *cr, *lf, *eol = NULL;
|
|
char *readptr, *buf = zbuf.s;
|
|
|
|
if (!buf) {
|
|
readptr = stream->readbuf.s + PS_ULEN(stream->input_encoding, stream->readpos);
|
|
avail = stream->writepos - stream->readpos;
|
|
} else {
|
|
readptr = zbuf.s;
|
|
avail = buf_len;
|
|
}
|
|
|
|
if (stream->flags & PHP_STREAM_FLAG_DETECT_EOL) {
|
|
if (stream->input_encoding) {
|
|
cr = (char*)u_memchr((UChar*)readptr, '\r', avail);
|
|
lf = (char*)u_memchr((UChar*)readptr, '\n', avail);
|
|
} else {
|
|
cr = memchr(readptr, '\r', avail);
|
|
lf = memchr(readptr, '\n', avail);
|
|
}
|
|
|
|
if (cr && lf != cr + 1 && !(lf && lf < cr)) {
|
|
/* mac */
|
|
stream->flags ^= PHP_STREAM_FLAG_DETECT_EOL;
|
|
stream->flags |= PHP_STREAM_FLAG_EOL_MAC;
|
|
eol = cr;
|
|
} else if ((cr && lf && cr == lf - 1) || (lf)) {
|
|
/* dos or unix endings */
|
|
stream->flags ^= PHP_STREAM_FLAG_DETECT_EOL;
|
|
eol = lf;
|
|
}
|
|
} else if (stream->flags & PHP_STREAM_FLAG_EOL_MAC) {
|
|
eol = stream->input_encoding ? u_memchr((UChar*)readptr, '\r', avail) : memchr(readptr, '\r', avail);
|
|
} else {
|
|
/* unix (and dos) line endings */
|
|
eol = stream->input_encoding ? u_memchr((UChar*)readptr, '\n', avail) : memchr(readptr, '\n', avail);
|
|
}
|
|
|
|
return (void*)eol;
|
|
}
|
|
|
|
/* If buf == NULL, the buffer will be allocated automatically and will be of an
|
|
* appropriate length to hold the line, regardless of the line length, memory
|
|
* permitting -- returned string will be up to (maxlen-1) units of (maxchars) characters, last byte holding terminating NULL
|
|
* Like php_stream_read(), this will (UTODO) treat unicode streams as ugly binary data (use with caution) */
|
|
PHPAPI void *_php_stream_get_line(php_stream *stream, int buf_type, zstr buf, size_t maxlen, size_t maxchars, size_t *returned_len TSRMLS_DC)
|
|
{
|
|
size_t avail = 0;
|
|
size_t current_buf_size = 0;
|
|
size_t total_copied = 0;
|
|
int grow_mode = 0;
|
|
int is_unicode = php_stream_reads_unicode(stream);
|
|
int split_surrogate = 0;
|
|
zstr bufstart = buf;
|
|
|
|
if ((buf_type == IS_STRING && is_unicode) ||
|
|
(buf_type == IS_UNICODE && !is_unicode)) {
|
|
/* UTODO: Allow sloppy conversion */
|
|
return NULL;
|
|
}
|
|
|
|
if (buf.v == NULL) {
|
|
grow_mode = 1;
|
|
} else if (maxlen == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* If the underlying stream operations block when no new data is readable,
|
|
* we need to take extra precautions.
|
|
*
|
|
* If there is buffered data available, we check for a EOL. If it exists,
|
|
* we pass the data immediately back to the caller. This saves a call
|
|
* to the read implementation and will not block where blocking
|
|
* is not necessary at all.
|
|
*
|
|
* If the stream buffer contains more data than the caller requested,
|
|
* we can also avoid that costly step and simply return that data.
|
|
*/
|
|
|
|
for (;;) {
|
|
avail = stream->writepos - stream->readpos;
|
|
|
|
if (!split_surrogate && avail > 0) {
|
|
size_t cpysz = avail;
|
|
zstr readptr;
|
|
int done = 0;
|
|
|
|
if (is_unicode) {
|
|
UChar *eol;
|
|
readptr.u = stream->readbuf.u + stream->readpos;
|
|
|
|
eol = php_stream_locate_eol(stream, NULL_ZSTR, 0 TSRMLS_CC);
|
|
if (eol) {
|
|
cpysz = eol - readptr.u + 1;
|
|
done = 1;
|
|
}
|
|
|
|
if (U16_IS_SURROGATE(readptr.u[cpysz - 1]) &&
|
|
U16_IS_SURROGATE_LEAD(readptr.u[cpysz - 1])) {
|
|
/* Don't orphan */
|
|
cpysz--;
|
|
if (!cpysz) {
|
|
/* Force the loop to land on fill_read_buffer */
|
|
split_surrogate = 1; /* must specifically be 1 */
|
|
continue;
|
|
}
|
|
}
|
|
} else {
|
|
char *eol;
|
|
readptr.s = stream->readbuf.s + stream->readpos;
|
|
eol = php_stream_locate_eol(stream, NULL_ZSTR, 0 TSRMLS_CC);
|
|
if (eol) {
|
|
cpysz = eol - readptr.s + 1;
|
|
done = 1;
|
|
}
|
|
}
|
|
|
|
if (grow_mode) {
|
|
/* allow room for a NUL. If this realloc is really a realloc
|
|
* (ie: second time around), we get an extra byte. In most
|
|
* cases, with the default chunk size of 8K, we will only
|
|
* incur that overhead once. When people have lines longer
|
|
* than 8K, we waste 1 byte per additional 8K or so.
|
|
* That seems acceptable to me, to avoid making this code
|
|
* hard to follow */
|
|
bufstart.s = erealloc(bufstart.s, PS_ULEN(stream->input_encoding, current_buf_size + cpysz + 1));
|
|
buf.s = bufstart.s + PS_ULEN(stream->input_encoding, total_copied);
|
|
current_buf_size += cpysz + 1;
|
|
} else {
|
|
if (cpysz >= maxlen - 1) {
|
|
cpysz = maxlen - 1;
|
|
done = 1;
|
|
}
|
|
}
|
|
|
|
if (is_unicode) {
|
|
if (maxchars) {
|
|
int ulen = u_countChar32(readptr.u, cpysz);
|
|
|
|
if (ulen > maxchars) {
|
|
int32_t i = 0;
|
|
|
|
ulen = maxchars;
|
|
U16_FWD_N(readptr.u, i, cpysz, ulen);
|
|
cpysz = i;
|
|
}
|
|
maxchars -= ulen;
|
|
}
|
|
memcpy(buf.u, readptr.u, UBYTES(cpysz));
|
|
buf.u += cpysz;
|
|
} else {
|
|
if (maxchars && cpysz > maxchars) {
|
|
cpysz = maxchars;
|
|
}
|
|
memcpy(buf.s, readptr.s, cpysz);
|
|
buf.s += cpysz;
|
|
}
|
|
|
|
stream->position += cpysz;
|
|
stream->readpos += cpysz;
|
|
maxlen -= cpysz;
|
|
total_copied += cpysz;
|
|
|
|
if (done) {
|
|
break;
|
|
}
|
|
} else if (stream->eof) {
|
|
break;
|
|
} else {
|
|
/* XXX: Should be fine to always read chunk_size */
|
|
size_t toread;
|
|
|
|
if (grow_mode) {
|
|
toread = stream->chunk_size;
|
|
} else {
|
|
toread = maxlen - 1;
|
|
if (toread > stream->chunk_size) {
|
|
toread = stream->chunk_size;
|
|
}
|
|
}
|
|
|
|
php_stream_fill_read_buffer(stream, toread TSRMLS_CC);
|
|
|
|
if (stream->writepos - stream->readpos <= split_surrogate) {
|
|
break;
|
|
}
|
|
split_surrogate = 0;
|
|
}
|
|
}
|
|
|
|
if (returned_len) {
|
|
*returned_len = total_copied;
|
|
}
|
|
|
|
if (total_copied == 0) {
|
|
assert(stream->eof || !grow_mode ||
|
|
(grow_mode && bufstart.v == NULL));
|
|
return NULL;
|
|
}
|
|
|
|
if (is_unicode) {
|
|
buf.u[0] = 0;
|
|
} else {
|
|
buf.s[0] = 0;
|
|
}
|
|
|
|
return bufstart.s;
|
|
}
|
|
|
|
PHPAPI char *php_stream_get_record(php_stream *stream, size_t maxlen, size_t *returned_len, char *delim, size_t delim_len TSRMLS_DC)
|
|
{
|
|
char *e, *buf;
|
|
size_t toread;
|
|
int skip = 0;
|
|
|
|
php_stream_fill_read_buffer(stream, maxlen TSRMLS_CC);
|
|
|
|
if (delim_len == 0 || !delim) {
|
|
toread = maxlen;
|
|
} else {
|
|
if (delim_len == 1) {
|
|
e = memchr(stream->readbuf.s + stream->readpos, *delim, stream->writepos - stream->readpos);
|
|
} else {
|
|
e = php_memnstr(stream->readbuf.s + stream->readpos, delim, delim_len, (stream->readbuf.s + stream->writepos));
|
|
}
|
|
|
|
if (!e) {
|
|
toread = maxlen;
|
|
} else {
|
|
toread = e - stream->readbuf.s - stream->readpos;
|
|
skip = 1;
|
|
}
|
|
}
|
|
|
|
if (toread > maxlen && maxlen > 0) {
|
|
toread = maxlen;
|
|
}
|
|
|
|
buf = emalloc(toread + 1);
|
|
*returned_len = php_stream_read(stream, buf, toread);
|
|
|
|
if (*returned_len >= 0) {
|
|
if (skip) {
|
|
stream->readpos += delim_len;
|
|
stream->position += delim_len;
|
|
}
|
|
buf[*returned_len] = '\0';
|
|
return buf;
|
|
} else {
|
|
efree(buf);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* Writes a buffer directly to a stream, using multiple of the chunk size */
|
|
static size_t _php_stream_write_buffer(php_stream *stream, int buf_type, zstr buf, int buflen TSRMLS_DC)
|
|
{
|
|
size_t didwrite = 0, towrite, justwrote, shouldwrite, buflen_orig = buflen;
|
|
zstr buf_orig = buf;
|
|
char *freeme = NULL;
|
|
|
|
/* if we have a seekable stream we need to ensure that data is written at the
|
|
* current stream->position. This means invalidating the read buffer and then
|
|
* performing a low-level seek */
|
|
if (stream->ops->seek && (stream->flags & PHP_STREAM_FLAG_NO_SEEK) == 0 && stream->readpos != stream->writepos) {
|
|
stream->readpos = stream->writepos = 0;
|
|
|
|
stream->ops->seek(stream, stream->position, SEEK_SET, &stream->position TSRMLS_CC);
|
|
}
|
|
|
|
if (stream->output_encoding && buf_type == IS_UNICODE) {
|
|
char *dest;
|
|
int destlen;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
zend_convert_from_unicode(stream->output_encoding, &dest, &destlen, buf.u, buflen, &status);
|
|
freeme = buf.s = dest;
|
|
buflen = destlen;
|
|
} else {
|
|
/* Sloppy handling, make it a binary buffer */
|
|
if (buf_type != IS_STRING) {
|
|
buflen = UBYTES(buflen);
|
|
}
|
|
}
|
|
|
|
shouldwrite = buflen;
|
|
|
|
while (buflen > 0) {
|
|
towrite = buflen;
|
|
if (towrite > stream->chunk_size) {
|
|
towrite = stream->chunk_size;
|
|
}
|
|
|
|
justwrote = stream->ops->write(stream, buf.s, towrite TSRMLS_CC);
|
|
|
|
/* convert justwrote to an integer, since normally it is unsigned */
|
|
if ((int)justwrote > 0) {
|
|
buf.s += justwrote;
|
|
buflen -= justwrote;
|
|
didwrite += justwrote;
|
|
|
|
/* Only screw with the buffer if we can seek, otherwise we lose data
|
|
* buffered from fifos and sockets */
|
|
if (stream->ops->seek && (stream->flags & PHP_STREAM_FLAG_NO_SEEK) == 0) {
|
|
stream->position += justwrote;
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
if (stream->output_encoding) {
|
|
/* Map didwrite back to the original character count */
|
|
if (didwrite == shouldwrite) {
|
|
/* Everything wrote okay, no need to count */
|
|
didwrite = buflen_orig;
|
|
} else {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
char *t = freeme;
|
|
const UChar *p = buf_orig.u;
|
|
|
|
switch (ucnv_getType(stream->output_encoding)) {
|
|
case UCNV_SBCS:
|
|
case UCNV_LATIN_1:
|
|
case UCNV_US_ASCII:
|
|
/* 1:1 character->byte mapping, didwrite really does mean the number of characters written */
|
|
break;
|
|
default:
|
|
/* Reconvert into junk buffer to see where conversion stops in source string */
|
|
ucnv_resetFromUnicode(stream->output_encoding);
|
|
ucnv_fromUnicode(stream->output_encoding, &t, t + didwrite, &p, p + buflen_orig, NULL, TRUE, &status);
|
|
/* p stops at the first unconvertable UChar when t runs out of space */
|
|
didwrite = p - buf_orig.u;
|
|
}
|
|
}
|
|
} else if (buf_type == IS_UNICODE) {
|
|
/* Was slopily converted */
|
|
didwrite /= UBYTES(1);
|
|
}
|
|
|
|
if (freeme) {
|
|
efree(freeme);
|
|
}
|
|
|
|
return didwrite;
|
|
}
|
|
|
|
/* push some data through the write filter chain.
|
|
* buf may be NULL, if flags are set to indicate a flush.
|
|
* This may trigger a real write to the stream.
|
|
* Returns the number of bytes consumed from buf by the first filter in the chain.
|
|
* */
|
|
static size_t _php_stream_write_filtered(php_stream *stream, int buf_type, zstr buf, int count, int flags TSRMLS_DC)
|
|
{
|
|
size_t consumed = 0;
|
|
php_stream_bucket *bucket;
|
|
php_stream_bucket_brigade brig_in = { NULL, NULL }, brig_out = { NULL, NULL };
|
|
php_stream_bucket_brigade *brig_inp = &brig_in, *brig_outp = &brig_out, *brig_swap;
|
|
php_stream_filter_status_t status = PSFS_ERR_FATAL;
|
|
php_stream_filter *filter;
|
|
|
|
if (buf.v) {
|
|
if (buf_type == IS_UNICODE) {
|
|
bucket = php_stream_bucket_new_unicode(stream, buf.u, count, 0, 0 TSRMLS_CC);
|
|
} else {
|
|
bucket = php_stream_bucket_new(stream, buf.s, count, 0, 0 TSRMLS_CC);
|
|
}
|
|
php_stream_bucket_append(brig_inp, bucket TSRMLS_CC);
|
|
}
|
|
|
|
for (filter = stream->writefilters.head; filter; filter = filter->next) {
|
|
/* for our return value, we are interested in the number of bytes consumed from
|
|
* the first filter in the chain */
|
|
status = filter->fops->filter(stream, filter, brig_inp, brig_outp, (filter == stream->writefilters.head) ? &consumed : NULL, flags TSRMLS_CC);
|
|
if (status != PSFS_PASS_ON) {
|
|
break;
|
|
}
|
|
/* brig_out becomes brig_in.
|
|
* brig_in will always be empty here, as the filter MUST attach any un-consumed buckets
|
|
* to its own brigade */
|
|
brig_swap = brig_inp;
|
|
brig_inp = brig_outp;
|
|
brig_outp = brig_swap;
|
|
memset(brig_outp, 0, sizeof(*brig_outp));
|
|
}
|
|
|
|
switch (status) {
|
|
case PSFS_PASS_ON:
|
|
/* filter chain generated some output; push it through to the
|
|
* underlying stream */
|
|
while (brig_inp->head) {
|
|
bucket = brig_inp->head;
|
|
_php_stream_write_buffer(stream, bucket->buf_type, bucket->buf, bucket->buflen TSRMLS_CC);
|
|
/* Potential error situation - eg: no space on device. Perhaps we should keep this brigade
|
|
* hanging around and try to write it later.
|
|
* At the moment, we just drop it on the floor
|
|
* */
|
|
|
|
php_stream_bucket_unlink(bucket TSRMLS_CC);
|
|
php_stream_bucket_delref(bucket TSRMLS_CC);
|
|
}
|
|
break;
|
|
case PSFS_FEED_ME:
|
|
/* need more data before we can push data through to the stream */
|
|
break;
|
|
|
|
case PSFS_ERR_FATAL:
|
|
/* some fatal error. Theoretically, the stream is borked, so all
|
|
* further writes should fail. */
|
|
break;
|
|
}
|
|
|
|
return consumed;
|
|
}
|
|
|
|
PHPAPI int _php_stream_flush(php_stream *stream, int closing TSRMLS_DC)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (stream->writefilters.head) {
|
|
_php_stream_write_filtered(stream, IS_STRING, NULL_ZSTR, 0, closing ? PSFS_FLAG_FLUSH_CLOSE : PSFS_FLAG_FLUSH_INC TSRMLS_CC);
|
|
}
|
|
|
|
if (stream->ops->flush) {
|
|
ret = stream->ops->flush(stream TSRMLS_CC);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
PHPAPI size_t _php_stream_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
|
|
{
|
|
if (buf == NULL || count == 0 || stream->ops->write == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
if (stream->writefilters.head) {
|
|
return _php_stream_write_filtered(stream, IS_STRING, ZSTR((void*)buf), count, PSFS_FLAG_NORMAL TSRMLS_CC);
|
|
} else {
|
|
return _php_stream_write_buffer(stream, IS_STRING, ZSTR((void*)buf), count TSRMLS_CC);
|
|
}
|
|
}
|
|
|
|
PHPAPI size_t _php_stream_write_unicode(php_stream *stream, const UChar *buf, int count TSRMLS_DC)
|
|
{
|
|
int32_t ret;
|
|
|
|
if (buf == NULL || count == 0 || stream->ops->write == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
if (stream->writefilters.head) {
|
|
ret = _php_stream_write_filtered(stream, IS_UNICODE, ZSTR((void*)buf), count, PSFS_FLAG_NORMAL TSRMLS_CC);
|
|
} else {
|
|
ret = _php_stream_write_buffer(stream, IS_UNICODE, ZSTR((void*)buf), count TSRMLS_CC);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
PHPAPI size_t _php_stream_printf(php_stream *stream TSRMLS_DC, const char *fmt, ...)
|
|
{
|
|
size_t count;
|
|
char *buf;
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
count = vspprintf(&buf, 0, fmt, ap);
|
|
va_end(ap);
|
|
|
|
if (!buf) {
|
|
return 0; /* error condition */
|
|
}
|
|
|
|
count = php_stream_write(stream, buf, count);
|
|
efree(buf);
|
|
|
|
return count;
|
|
}
|
|
|
|
PHPAPI off_t _php_stream_tell(php_stream *stream TSRMLS_DC)
|
|
{
|
|
return stream->position;
|
|
}
|
|
|
|
PHPAPI int _php_stream_seek(php_stream *stream, off_t offset, int whence TSRMLS_DC)
|
|
{
|
|
/* handle the case where we are in the buffer */
|
|
if ((stream->flags & PHP_STREAM_FLAG_NO_BUFFER) == 0) {
|
|
switch(whence) {
|
|
case SEEK_CUR:
|
|
if (offset > 0 && offset < stream->writepos - stream->readpos) {
|
|
stream->readpos += offset;
|
|
stream->position += offset;
|
|
stream->eof = 0;
|
|
return 0;
|
|
}
|
|
break;
|
|
case SEEK_SET:
|
|
if (offset > stream->position &&
|
|
offset < stream->position + stream->writepos - stream->readpos) {
|
|
stream->readpos += offset - stream->position;
|
|
stream->position = offset;
|
|
stream->eof = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if (stream->ops->seek && (stream->flags & PHP_STREAM_FLAG_NO_SEEK) == 0) {
|
|
int ret;
|
|
|
|
if (stream->writefilters.head) {
|
|
_php_stream_flush(stream, 0 TSRMLS_CC);
|
|
}
|
|
|
|
switch(whence) {
|
|
case SEEK_CUR:
|
|
offset = stream->position + offset;
|
|
whence = SEEK_SET;
|
|
break;
|
|
}
|
|
ret = stream->ops->seek(stream, offset, whence, &stream->position TSRMLS_CC);
|
|
|
|
if (((stream->flags & PHP_STREAM_FLAG_NO_SEEK) == 0) || ret == 0) {
|
|
if (ret == 0) {
|
|
stream->eof = 0;
|
|
}
|
|
|
|
/* invalidate the buffer contents */
|
|
stream->readpos = stream->writepos = 0;
|
|
|
|
return ret;
|
|
}
|
|
/* else the stream has decided that it can't support seeking after all;
|
|
* fall through to attempt emulation */
|
|
}
|
|
|
|
/* emulate forward moving seeks with reads */
|
|
if (whence == SEEK_CUR && offset > 0) {
|
|
char tmp[1024];
|
|
while(offset >= sizeof(tmp)) {
|
|
if (php_stream_read(stream, tmp, sizeof(tmp)) == 0) {
|
|
return -1;
|
|
}
|
|
offset -= sizeof(tmp);
|
|
}
|
|
if (offset && (php_stream_read(stream, tmp, offset) == 0)) {
|
|
return -1;
|
|
}
|
|
stream->eof = 0;
|
|
return 0;
|
|
}
|
|
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "stream does not support seeking");
|
|
|
|
return -1;
|
|
}
|
|
|
|
PHPAPI int _php_stream_set_option(php_stream *stream, int option, int value, void *ptrparam TSRMLS_DC)
|
|
{
|
|
int ret = PHP_STREAM_OPTION_RETURN_NOTIMPL;
|
|
|
|
if (stream->ops->set_option) {
|
|
ret = stream->ops->set_option(stream, option, value, ptrparam TSRMLS_CC);
|
|
}
|
|
|
|
if (ret == PHP_STREAM_OPTION_RETURN_NOTIMPL) {
|
|
switch(option) {
|
|
case PHP_STREAM_OPTION_SET_CHUNK_SIZE:
|
|
ret = stream->chunk_size;
|
|
stream->chunk_size = value;
|
|
return ret;
|
|
|
|
case PHP_STREAM_OPTION_READ_BUFFER:
|
|
/* try to match the buffer mode as best we can */
|
|
if (value == PHP_STREAM_BUFFER_NONE) {
|
|
stream->flags |= PHP_STREAM_FLAG_NO_BUFFER;
|
|
} else {
|
|
stream->flags ^= PHP_STREAM_FLAG_NO_BUFFER;
|
|
}
|
|
ret = PHP_STREAM_OPTION_RETURN_OK;
|
|
break;
|
|
|
|
default:
|
|
;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
PHPAPI int _php_stream_truncate_set_size(php_stream *stream, size_t newsize TSRMLS_DC)
|
|
{
|
|
return php_stream_set_option(stream, PHP_STREAM_OPTION_TRUNCATE_API, PHP_STREAM_TRUNCATE_SET_SIZE, &newsize);
|
|
}
|
|
|
|
PHPAPI size_t _php_stream_passthru(php_stream * stream STREAMS_DC TSRMLS_DC)
|
|
{
|
|
size_t bcount = 0;
|
|
char buf[8192];
|
|
int b;
|
|
|
|
if (php_stream_mmap_possible(stream)) {
|
|
char *p;
|
|
size_t mapped;
|
|
|
|
p = php_stream_mmap_range(stream, php_stream_tell(stream), PHP_STREAM_COPY_ALL, PHP_STREAM_MAP_MODE_SHARED_READONLY, &mapped);
|
|
|
|
if (p) {
|
|
PHPWRITE(p, mapped);
|
|
|
|
php_stream_mmap_unmap(stream);
|
|
|
|
return mapped;
|
|
}
|
|
}
|
|
|
|
while ((b = php_stream_read(stream, buf, sizeof(buf))) > 0) {
|
|
PHPWRITE(buf, b);
|
|
bcount += b;
|
|
}
|
|
|
|
return bcount;
|
|
}
|
|
|
|
|
|
PHPAPI size_t _php_stream_copy_to_mem(php_stream *src, char **buf, size_t maxlen, int persistent STREAMS_DC TSRMLS_DC)
|
|
{
|
|
size_t ret = 0;
|
|
char *ptr;
|
|
size_t len = 0, max_len;
|
|
int step = CHUNK_SIZE;
|
|
int min_room = CHUNK_SIZE / 4;
|
|
php_stream_statbuf ssbuf;
|
|
|
|
if (buf) {
|
|
*buf = NULL;
|
|
}
|
|
|
|
if (maxlen == 0) {
|
|
return 0;
|
|
}
|
|
|
|
if (maxlen == PHP_STREAM_COPY_ALL) {
|
|
maxlen = 0;
|
|
}
|
|
|
|
if (php_stream_mmap_possible(src)) {
|
|
char *p;
|
|
size_t mapped;
|
|
|
|
p = php_stream_mmap_range(src, php_stream_tell(src), maxlen, PHP_STREAM_MAP_MODE_SHARED_READONLY, &mapped);
|
|
|
|
if (p) {
|
|
*buf = pemalloc_rel_orig(mapped + 1, persistent);
|
|
|
|
if (*buf) {
|
|
memcpy(*buf, p, mapped);
|
|
(*buf)[mapped] = '\0';
|
|
}
|
|
|
|
php_stream_mmap_unmap(src);
|
|
|
|
return mapped;
|
|
}
|
|
}
|
|
|
|
if (maxlen > 0) {
|
|
ptr = *buf = pemalloc_rel_orig(maxlen + 1, persistent);
|
|
while ((len < maxlen) & !php_stream_eof(src)) {
|
|
ret = php_stream_read(src, ptr, maxlen - len);
|
|
len += ret;
|
|
ptr += ret;
|
|
}
|
|
*ptr = '\0';
|
|
return len;
|
|
}
|
|
|
|
/* avoid many reallocs by allocating a good sized chunk to begin with, if
|
|
* we can. Note that the stream may be filtered, in which case the stat
|
|
* result may be inaccurate, as the filter may inflate or deflate the
|
|
* number of bytes that we can read. In order to avoid an upsize followed
|
|
* by a downsize of the buffer, overestimate by the step size (which is
|
|
* 2K). */
|
|
if (php_stream_stat(src, &ssbuf) == 0 && ssbuf.sb.st_size > 0) {
|
|
max_len = ssbuf.sb.st_size + step;
|
|
} else {
|
|
max_len = step;
|
|
}
|
|
|
|
ptr = *buf = pemalloc_rel_orig(max_len, persistent);
|
|
|
|
while((ret = php_stream_read(src, ptr, max_len - len))) {
|
|
len += ret;
|
|
if (len + min_room >= max_len) {
|
|
*buf = perealloc_rel_orig(*buf, max_len + step, persistent);
|
|
max_len += step;
|
|
ptr = *buf + len;
|
|
} else {
|
|
ptr += ret;
|
|
}
|
|
}
|
|
if (len) {
|
|
*buf = perealloc_rel_orig(*buf, len + 1, persistent);
|
|
(*buf)[len] = '\0';
|
|
} else {
|
|
pefree(*buf, persistent);
|
|
*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;
|
|
php_stream_statbuf ssbuf;
|
|
|
|
if (maxlen == 0) {
|
|
return 0;
|
|
}
|
|
|
|
if (maxlen == PHP_STREAM_COPY_ALL) {
|
|
maxlen = 0;
|
|
}
|
|
|
|
if (php_stream_stat(src, &ssbuf) == 0) {
|
|
/* 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 (ssbuf.sb.st_size == 0
|
|
#ifdef S_ISFIFO
|
|
&& !S_ISFIFO(ssbuf.sb.st_mode)
|
|
#endif
|
|
#ifdef S_ISCHR
|
|
&& !S_ISCHR(ssbuf.sb.st_mode)
|
|
#endif
|
|
) {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if (php_stream_mmap_possible(src)) {
|
|
char *p;
|
|
size_t mapped;
|
|
|
|
p = php_stream_mmap_range(src, php_stream_tell(src), maxlen, PHP_STREAM_MAP_MODE_SHARED_READONLY, &mapped);
|
|
|
|
if (p) {
|
|
haveread = php_stream_write(dest, p, mapped);
|
|
|
|
php_stream_mmap_unmap(src);
|
|
|
|
return mapped;
|
|
}
|
|
}
|
|
|
|
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;
|
|
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ wrapper init and registration */
|
|
|
|
static void stream_resource_regular_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
|
|
{
|
|
php_stream *stream = (php_stream*)rsrc->ptr;
|
|
/* set the return value for pclose */
|
|
FG(pclose_ret) = php_stream_free(stream, PHP_STREAM_FREE_CLOSE | PHP_STREAM_FREE_RSRC_DTOR);
|
|
}
|
|
|
|
static void stream_resource_persistent_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
|
|
{
|
|
php_stream *stream = (php_stream*)rsrc->ptr;
|
|
FG(pclose_ret) = php_stream_free(stream, PHP_STREAM_FREE_CLOSE | PHP_STREAM_FREE_RSRC_DTOR);
|
|
}
|
|
|
|
void php_shutdown_stream_hashes(TSRMLS_D)
|
|
{
|
|
if (FG(stream_wrappers)) {
|
|
zend_hash_destroy(FG(stream_wrappers));
|
|
efree(FG(stream_wrappers));
|
|
FG(stream_wrappers) = NULL;
|
|
}
|
|
|
|
if (FG(stream_filters)) {
|
|
zend_hash_destroy(FG(stream_filters));
|
|
efree(FG(stream_filters));
|
|
FG(stream_filters) = NULL;
|
|
}
|
|
}
|
|
|
|
int php_init_stream_wrappers(int module_number TSRMLS_DC)
|
|
{
|
|
le_stream = zend_register_list_destructors_ex(stream_resource_regular_dtor, NULL, "stream", module_number);
|
|
le_pstream = zend_register_list_destructors_ex(NULL, stream_resource_persistent_dtor, "persistent stream", module_number);
|
|
|
|
/* Filters are cleaned up by the streams they're attached to */
|
|
le_stream_filter = zend_register_list_destructors_ex(NULL, NULL, "stream filter", module_number);
|
|
|
|
return (
|
|
zend_hash_init(&url_stream_wrappers_hash, 0, NULL, NULL, 1) == SUCCESS
|
|
&&
|
|
zend_hash_init(php_get_stream_filters_hash_global(), 0, NULL, NULL, 1) == SUCCESS
|
|
&&
|
|
zend_hash_init(php_stream_xport_get_hash(), 0, NULL, NULL, 1) == SUCCESS
|
|
&&
|
|
php_stream_xport_register("tcp", php_stream_generic_socket_factory TSRMLS_CC) == SUCCESS
|
|
&&
|
|
php_stream_xport_register("udp", php_stream_generic_socket_factory TSRMLS_CC) == SUCCESS
|
|
#if defined(AF_UNIX) && !(defined(PHP_WIN32) || defined(__riscos__) || defined(NETWARE))
|
|
&&
|
|
php_stream_xport_register("unix", php_stream_generic_socket_factory TSRMLS_CC) == SUCCESS
|
|
&&
|
|
php_stream_xport_register("udg", php_stream_generic_socket_factory TSRMLS_CC) == SUCCESS
|
|
#endif
|
|
) ? SUCCESS : FAILURE;
|
|
}
|
|
|
|
int php_shutdown_stream_wrappers(int module_number TSRMLS_DC)
|
|
{
|
|
zend_hash_destroy(&url_stream_wrappers_hash);
|
|
zend_hash_destroy(php_get_stream_filters_hash_global());
|
|
zend_hash_destroy(php_stream_xport_get_hash());
|
|
return SUCCESS;
|
|
}
|
|
|
|
/* Validate protocol scheme names during registration
|
|
* Must conform to /^[a-zA-Z0-9+.-]+$/
|
|
*/
|
|
static inline int php_stream_wrapper_scheme_validate(char *protocol, int protocol_len)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < protocol_len; i++) {
|
|
if (!isalnum((int)protocol[i]) &&
|
|
protocol[i] != '+' &&
|
|
protocol[i] != '-' &&
|
|
protocol[i] != '.') {
|
|
return FAILURE;
|
|
}
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
/* API for registering GLOBAL wrappers */
|
|
PHPAPI int php_register_url_stream_wrapper(char *protocol, php_stream_wrapper *wrapper TSRMLS_DC)
|
|
{
|
|
int protocol_len = strlen(protocol);
|
|
|
|
if (php_stream_wrapper_scheme_validate(protocol, protocol_len) == FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
|
|
return zend_hash_add(&url_stream_wrappers_hash, protocol, protocol_len, 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));
|
|
}
|
|
|
|
/* API for registering VOLATILE wrappers */
|
|
PHPAPI int php_register_url_stream_wrapper_volatile(char *protocol, php_stream_wrapper *wrapper TSRMLS_DC)
|
|
{
|
|
int protocol_len = strlen(protocol);
|
|
|
|
if (php_stream_wrapper_scheme_validate(protocol, protocol_len) == FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
|
|
if (!FG(stream_wrappers)) {
|
|
php_stream_wrapper tmpwrapper;
|
|
|
|
ALLOC_HASHTABLE(FG(stream_wrappers));
|
|
zend_hash_init(FG(stream_wrappers), 0, NULL, NULL, 1);
|
|
zend_hash_copy(FG(stream_wrappers), &url_stream_wrappers_hash, NULL, &tmpwrapper, sizeof(php_stream_wrapper));
|
|
}
|
|
|
|
return zend_hash_add(FG(stream_wrappers), protocol, protocol_len, wrapper, sizeof(*wrapper), NULL);
|
|
}
|
|
|
|
PHPAPI int php_unregister_url_stream_wrapper_volatile(char *protocol TSRMLS_DC)
|
|
{
|
|
if (!FG(stream_wrappers)) {
|
|
php_stream_wrapper tmpwrapper;
|
|
|
|
ALLOC_HASHTABLE(FG(stream_wrappers));
|
|
zend_hash_init(FG(stream_wrappers), 0, NULL, NULL, 1);
|
|
zend_hash_copy(FG(stream_wrappers), &url_stream_wrappers_hash, NULL, &tmpwrapper, sizeof(php_stream_wrapper));
|
|
}
|
|
|
|
return zend_hash_del(FG(stream_wrappers), protocol, strlen(protocol));
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_locate_url_wrapper */
|
|
PHPAPI php_stream_wrapper *php_stream_locate_url_wrapper(const char *path, char **path_for_open, int options TSRMLS_DC)
|
|
{
|
|
HashTable *wrapper_hash = (FG(stream_wrappers) ? FG(stream_wrappers) : &url_stream_wrappers_hash);
|
|
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;
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Use of \"zlib:\" wrapper is deprecated; please use \"compress.zlib://\" instead.");
|
|
}
|
|
|
|
if (protocol) {
|
|
if (FAILURE == zend_hash_find(wrapper_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);
|
|
|
|
php_error_docref(NULL TSRMLS_CC, 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) {
|
|
int localhost = 0;
|
|
|
|
if (!strncasecmp(path, "file://localhost/", 17)) {
|
|
localhost = 1;
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
if (localhost == 0 && path[n+3] != '\0' && path[n+3] != '/' && path[n+4] != ':') {
|
|
#else
|
|
if (localhost == 0 && path[n+3] != '/') {
|
|
#endif
|
|
if (options & REPORT_ERRORS) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "remote host file access not supported, %s", path);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (path_for_open) {
|
|
/* skip past protocol and :/, but handle windows correctly */
|
|
*path_for_open = (char*)path + n + 1;
|
|
if (localhost == 1) {
|
|
(*path_for_open) += 11;
|
|
}
|
|
while (*(++*path_for_open)=='/');
|
|
#ifdef PHP_WIN32
|
|
if (*(*path_for_open + 1) != ':')
|
|
#endif
|
|
(*path_for_open)--;
|
|
}
|
|
}
|
|
|
|
if (options & STREAM_LOCATE_WRAPPERS_ONLY) {
|
|
return NULL;
|
|
}
|
|
|
|
if (FG(stream_wrappers)) {
|
|
/* The file:// wrapper may have been disabled/overridden */
|
|
|
|
if (wrapper) {
|
|
/* It was found so go ahead and provide it */
|
|
return wrapper;
|
|
}
|
|
|
|
/* Check again, the original check might have not known the protocol name */
|
|
if (zend_hash_find(wrapper_hash, "file", sizeof("file")-1, (void**)&wrapper) == SUCCESS) {
|
|
return wrapper;
|
|
}
|
|
|
|
if (options & REPORT_ERRORS) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Plainfiles wrapper disabled");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* fall back on regular file access */
|
|
return &php_plain_files_wrapper;
|
|
}
|
|
|
|
if ((wrapper && wrapper->is_url) && (!PG(allow_url_fopen) || ((options & STREAM_OPEN_FOR_INCLUDE) && !PG(allow_url_include))) ) {
|
|
if (options & REPORT_ERRORS) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "URL file-access is disabled in the server configuration");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
return wrapper;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ _php_stream_mkdir
|
|
*/
|
|
PHPAPI int _php_stream_mkdir(char *path, int mode, int options, php_stream_context *context TSRMLS_DC)
|
|
{
|
|
php_stream_wrapper *wrapper = NULL;
|
|
|
|
wrapper = php_stream_locate_url_wrapper(path, NULL, 0 TSRMLS_CC);
|
|
if (!wrapper || !wrapper->wops || !wrapper->wops->stream_mkdir) {
|
|
return 0;
|
|
}
|
|
|
|
return wrapper->wops->stream_mkdir(wrapper, path, mode, options, context TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ _php_stream_rmdir
|
|
*/
|
|
PHPAPI int _php_stream_rmdir(char *path, int options, php_stream_context *context TSRMLS_DC)
|
|
{
|
|
php_stream_wrapper *wrapper = NULL;
|
|
|
|
wrapper = php_stream_locate_url_wrapper(path, NULL, 0 TSRMLS_CC);
|
|
if (!wrapper || !wrapper->wops || !wrapper->wops->stream_rmdir) {
|
|
return 0;
|
|
}
|
|
|
|
return wrapper->wops->stream_rmdir(wrapper, path, options, context TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ _php_stream_stat_path */
|
|
PHPAPI int _php_stream_stat_path(char *path, int flags, php_stream_statbuf *ssb, php_stream_context *context TSRMLS_DC)
|
|
{
|
|
php_stream_wrapper *wrapper = NULL;
|
|
char *path_to_open = path;
|
|
int ret;
|
|
|
|
/* Try to hit the cache first */
|
|
if (flags & PHP_STREAM_URL_STAT_LINK) {
|
|
if (BG(CurrentLStatFile) && strcmp(path, BG(CurrentLStatFile)) == 0) {
|
|
memcpy(ssb, &BG(lssb), sizeof(php_stream_statbuf));
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (BG(CurrentStatFile) && strcmp(path, BG(CurrentStatFile)) == 0) {
|
|
memcpy(ssb, &BG(ssb), sizeof(php_stream_statbuf));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
wrapper = php_stream_locate_url_wrapper(path, &path_to_open, 0 TSRMLS_CC);
|
|
if (wrapper && wrapper->wops->url_stat) {
|
|
ret = wrapper->wops->url_stat(wrapper, path_to_open, flags, ssb, context TSRMLS_CC);
|
|
if (ret == 0) {
|
|
/* Drop into cache */
|
|
if (flags & PHP_STREAM_URL_STAT_LINK) {
|
|
if (BG(CurrentLStatFile)) {
|
|
efree(BG(CurrentLStatFile));
|
|
}
|
|
BG(CurrentLStatFile) = estrdup(path);
|
|
memcpy(&BG(lssb), ssb, sizeof(php_stream_statbuf));
|
|
} else {
|
|
if (BG(CurrentStatFile)) {
|
|
efree(BG(CurrentStatFile));
|
|
}
|
|
BG(CurrentStatFile) = estrdup(path);
|
|
memcpy(&BG(ssb), ssb, sizeof(php_stream_statbuf));
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
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 ^ REPORT_ERRORS, NULL,
|
|
context STREAMS_REL_CC TSRMLS_CC);
|
|
|
|
if (stream) {
|
|
stream->wrapper = wrapper;
|
|
stream->flags |= PHP_STREAM_FLAG_NO_BUFFER;
|
|
}
|
|
} else if (wrapper) {
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC, "not implemented");
|
|
}
|
|
if (stream == NULL && (options & REPORT_ERRORS)) {
|
|
php_stream_display_wrapper_errors(wrapper, path, "failed to open dir" TSRMLS_CC);
|
|
}
|
|
php_stream_tidy_wrapper_error_log(wrapper TSRMLS_CC);
|
|
|
|
return stream;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ _php_stream_readdir */
|
|
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;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ 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;
|
|
int persistent = options & STREAM_OPEN_PERSISTENT;
|
|
char *copy_of_path = NULL;
|
|
char implicit_mode[16];
|
|
int modelen = strlen(mode);
|
|
|
|
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 (options & STREAM_USE_URL && (!wrapper || !wrapper->is_url)) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "This function may only be used against URLs.");
|
|
return NULL;
|
|
}
|
|
|
|
strlcpy(implicit_mode, mode, sizeof(implicit_mode));
|
|
if (context && context->default_mode && modelen < 15 && !strchr(mode, 't') && !strchr(mode, 'b')) {
|
|
if (context->default_mode & PHP_FILE_BINARY) {
|
|
implicit_mode[modelen++] = 'b';
|
|
} else if (context->default_mode & PHP_FILE_TEXT) {
|
|
implicit_mode[modelen++] = 't';
|
|
}
|
|
implicit_mode[modelen] = '\0';
|
|
}
|
|
|
|
if (wrapper) {
|
|
|
|
stream = wrapper->wops->stream_opener(wrapper,
|
|
path_to_open, implicit_mode, options ^ REPORT_ERRORS,
|
|
opened_path, context STREAMS_REL_CC TSRMLS_CC);
|
|
|
|
/* if the caller asked for a persistent stream but the wrapper did not
|
|
* return one, force an error here */
|
|
if (stream && (options & STREAM_OPEN_PERSISTENT) && !stream->is_persistent) {
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC,
|
|
"wrapper does not support persistent streams");
|
|
php_stream_close(stream);
|
|
stream = NULL;
|
|
}
|
|
|
|
if (stream) {
|
|
stream->wrapper = wrapper;
|
|
strlcpy(stream->mode, implicit_mode, sizeof(stream->mode));
|
|
}
|
|
}
|
|
|
|
if (stream) {
|
|
if (stream->orig_path) {
|
|
pefree(stream->orig_path, persistent);
|
|
}
|
|
copy_of_path = pestrdup(path, persistent);
|
|
stream->orig_path = copy_of_path;
|
|
}
|
|
|
|
if (stream != NULL && (options & STREAM_MUST_SEEK)) {
|
|
php_stream *newstream;
|
|
|
|
switch(php_stream_make_seekable_rel(stream, &newstream,
|
|
(options & STREAM_WILL_CAST)
|
|
? PHP_STREAM_PREFER_STDIO : PHP_STREAM_NO_PREFERENCE)) {
|
|
case PHP_STREAM_UNCHANGED:
|
|
return stream;
|
|
case PHP_STREAM_RELEASED:
|
|
newstream->orig_path = pestrdup(path, persistent);
|
|
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);
|
|
efree(tmp);
|
|
|
|
options ^= REPORT_ERRORS;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (stream && stream->ops->seek && (stream->flags & PHP_STREAM_FLAG_NO_SEEK) == 0 && strchr(mode, 'a') && stream->position == 0) {
|
|
off_t newpos = 0;
|
|
|
|
/* if opened for append, we need to revise our idea of the initial file position */
|
|
if (0 == stream->ops->seek(stream, 0, SEEK_CUR, &newpos TSRMLS_CC)) {
|
|
stream->position = newpos;
|
|
}
|
|
}
|
|
|
|
/* Output encoding on text mode streams defaults to utf8 unless specified in context parameter */
|
|
if (stream && strchr(implicit_mode, 't') && UG(unicode)) {
|
|
if (strchr(implicit_mode, 'w') || strchr(implicit_mode, 'a') || strchr(implicit_mode, '+')) {
|
|
char *encoding = (context && context->output_encoding) ? context->output_encoding : "utf8";
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
stream->output_encoding = ucnv_open(encoding, &status);
|
|
switch (U_FAILURE(status)) {
|
|
case U_ZERO_ERROR:
|
|
/* UTODO: (Maybe?) Allow overriding the default error handlers on a per-stream basis via context params */
|
|
zend_set_converter_error_mode(stream->output_encoding, UG(from_u_error_mode));
|
|
zend_set_converter_subst_char(stream->output_encoding, UG(subst_char), UG(subst_char_len));
|
|
break;
|
|
case U_MEMORY_ALLOCATION_ERROR:
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC,
|
|
"Unable to allocate memory for unicode output converter: %s", encoding);
|
|
break;
|
|
case U_FILE_ACCESS_ERROR:
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC,
|
|
"Error loading unicode output converter: %s", encoding);
|
|
break;
|
|
default:
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC,
|
|
"Unknown error starting unicode output converter: %s", encoding);
|
|
}
|
|
}
|
|
if (strchr(implicit_mode, 'r') || strchr(implicit_mode, '+')) {
|
|
char *encoding = (context && context->input_encoding) ? context->input_encoding : "utf8";
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
stream->input_encoding = ucnv_open(encoding, &status);
|
|
switch (U_FAILURE(status)) {
|
|
case U_ZERO_ERROR:
|
|
/* UTODO: If/When Input error handling gets implemented, set the options here */
|
|
break;
|
|
case U_MEMORY_ALLOCATION_ERROR:
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC,
|
|
"Unable to allocate memory for unicode input converter: %s", encoding);
|
|
break;
|
|
case U_FILE_ACCESS_ERROR:
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC,
|
|
"Error loading unicode input converter: %s", encoding);
|
|
break;
|
|
default:
|
|
php_stream_wrapper_log_error(wrapper, options ^ REPORT_ERRORS TSRMLS_CC,
|
|
"Unknown error starting unicode input converter: %s", encoding);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (stream == NULL && (options & REPORT_ERRORS)) {
|
|
php_stream_display_wrapper_errors(wrapper, path, "failed to open stream" TSRMLS_CC);
|
|
if (opened_path && *opened_path) {
|
|
efree(*opened_path);
|
|
*opened_path = NULL;
|
|
}
|
|
}
|
|
php_stream_tidy_wrapper_error_log(wrapper TSRMLS_CC);
|
|
#if ZEND_DEBUG
|
|
if (stream == NULL && copy_of_path != NULL) {
|
|
pefree(copy_of_path, persistent);
|
|
}
|
|
#endif
|
|
return stream;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ context API */
|
|
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)
|
|
{
|
|
if (context->options) {
|
|
zval_ptr_dtor(&context->options);
|
|
context->options = NULL;
|
|
}
|
|
if (context->notifier) {
|
|
php_stream_notification_free(context->notifier);
|
|
context->notifier = NULL;
|
|
}
|
|
if (context->input_encoding) {
|
|
efree(context->input_encoding);
|
|
}
|
|
if (context->output_encoding) {
|
|
efree(context->output_encoding);
|
|
}
|
|
if (context->links) {
|
|
zval_ptr_dtor(&context->links);
|
|
context->links = NULL;
|
|
}
|
|
efree(context);
|
|
}
|
|
|
|
PHPAPI php_stream_context *php_stream_context_alloc(void)
|
|
{
|
|
php_stream_context *context;
|
|
|
|
context = ecalloc(1, sizeof(php_stream_context));
|
|
context->notifier = NULL;
|
|
MAKE_STD_ZVAL(context->options);
|
|
array_init(context->options);
|
|
|
|
context->rsrc_id = ZEND_REGISTER_RESOURCE(NULL, context, php_le_stream_context());
|
|
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)
|
|
{
|
|
if (notifier->dtor) {
|
|
notifier->dtor(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;
|
|
zval *category, *copied_val;
|
|
|
|
ALLOC_INIT_ZVAL(copied_val);
|
|
*copied_val = *optionvalue;
|
|
zval_copy_ctor(copied_val);
|
|
INIT_PZVAL(copied_val);
|
|
|
|
if (FAILURE == zend_hash_find(Z_ARRVAL_P(context->options), (char*)wrappername, strlen(wrappername)+1, (void**)&wrapperhash)) {
|
|
MAKE_STD_ZVAL(category);
|
|
array_init(category);
|
|
if (FAILURE == zend_hash_update(Z_ARRVAL_P(context->options), (char*)wrappername, strlen(wrappername)+1, (void**)&category, sizeof(zval *), NULL)) {
|
|
return FAILURE;
|
|
}
|
|
|
|
wrapperhash = &category;
|
|
}
|
|
return zend_hash_update(Z_ARRVAL_PP(wrapperhash), (char*)optionname, strlen(optionname)+1, (void**)&copied_val, sizeof(zval *), NULL);
|
|
}
|
|
|
|
PHPAPI int php_stream_context_get_link(php_stream_context *context,
|
|
const char *hostent, php_stream **stream)
|
|
{
|
|
php_stream **pstream;
|
|
|
|
if (!stream || !hostent || !context || !(context->links)) {
|
|
return FAILURE;
|
|
}
|
|
if (SUCCESS == zend_hash_find(Z_ARRVAL_P(context->links), (char*)hostent, strlen(hostent)+1, (void**)&pstream)) {
|
|
*stream = *pstream;
|
|
return SUCCESS;
|
|
}
|
|
return FAILURE;
|
|
}
|
|
|
|
PHPAPI int php_stream_context_set_link(php_stream_context *context,
|
|
const char *hostent, php_stream *stream)
|
|
{
|
|
if (!context) {
|
|
return FAILURE;
|
|
}
|
|
if (!context->links) {
|
|
ALLOC_INIT_ZVAL(context->links);
|
|
array_init(context->links);
|
|
}
|
|
if (!stream) {
|
|
/* Delete any entry for <hostent> */
|
|
return zend_hash_del(Z_ARRVAL_P(context->links), (char*)hostent, strlen(hostent)+1);
|
|
}
|
|
return zend_hash_update(Z_ARRVAL_P(context->links), (char*)hostent, strlen(hostent)+1, (void**)&stream, sizeof(php_stream *), NULL);
|
|
}
|
|
|
|
PHPAPI int php_stream_context_del_link(php_stream_context *context,
|
|
php_stream *stream)
|
|
{
|
|
php_stream **pstream;
|
|
zend_uchar type;
|
|
zstr hostent;
|
|
unsigned int hostent_len;
|
|
int ret = SUCCESS;
|
|
|
|
if (!context || !context->links || !stream) {
|
|
return FAILURE;
|
|
}
|
|
|
|
for(zend_hash_internal_pointer_reset(Z_ARRVAL_P(context->links));
|
|
SUCCESS == zend_hash_get_current_data(Z_ARRVAL_P(context->links), (void**)&pstream);
|
|
zend_hash_move_forward(Z_ARRVAL_P(context->links))) {
|
|
if (*pstream == stream) {
|
|
type = zend_hash_get_current_key_ex(Z_ARRVAL_P(context->links), &hostent, &hostent_len, NULL, 0, NULL);
|
|
if (type == HASH_KEY_IS_STRING || type == HASH_KEY_IS_UNICODE) {
|
|
if (FAILURE == zend_u_hash_del(Z_ARRVAL_P(context->links), type, hostent, hostent_len)) {
|
|
ret = FAILURE;
|
|
}
|
|
} else {
|
|
ret = FAILURE;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_dirent_alphasort
|
|
*/
|
|
PHPAPI int php_stream_dirent_alphasort(const char **a, const char **b)
|
|
{
|
|
return strcoll(*a, *b);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_dirent_alphasortr
|
|
*/
|
|
PHPAPI int php_stream_dirent_alphasortr(const char **a, const char **b)
|
|
{
|
|
return strcoll(*b, *a);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ php_stream_scandir
|
|
*/
|
|
PHPAPI int _php_stream_scandir(char *dirname, char **namelist[], int flags, php_stream_context *context,
|
|
int (*compare) (const char **a, const char **b) TSRMLS_DC)
|
|
{
|
|
php_stream *stream;
|
|
php_stream_dirent sdp;
|
|
char **vector = NULL;
|
|
int vector_size = 0;
|
|
int nfiles = 0;
|
|
|
|
if (!namelist) {
|
|
return FAILURE;
|
|
}
|
|
|
|
stream = php_stream_opendir(dirname, REPORT_ERRORS, context);
|
|
if (!stream) {
|
|
return FAILURE;
|
|
}
|
|
|
|
while (php_stream_readdir(stream, &sdp)) {
|
|
if (nfiles == vector_size) {
|
|
if (vector_size == 0) {
|
|
vector_size = 10;
|
|
} else {
|
|
vector_size *= 2;
|
|
}
|
|
vector = (char **) erealloc(vector, vector_size * sizeof(char *));
|
|
}
|
|
|
|
vector[nfiles] = estrdup(sdp.d_name);
|
|
|
|
nfiles++;
|
|
}
|
|
php_stream_closedir(stream);
|
|
|
|
*namelist = vector;
|
|
|
|
if (compare) {
|
|
qsort(*namelist, nfiles, sizeof(char *), (int(*)(const void *, const void *))compare);
|
|
}
|
|
return nfiles;
|
|
}
|
|
/* }}} */
|
|
|
|
/*
|
|
* 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
|
|
*/
|