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file.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2009 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Rasmus Lerdorf <[email protected]> |
| Stig Bakken <[email protected]> |
| Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
| PHP 4.0 patches by Thies C. Arntzen ([email protected]) |
| PHP streams by Wez Furlong ([email protected]) |
+----------------------------------------------------------------------+
*/
/* $Id$ */
/* Synced with php 3.0 revision 1.218 1999-06-16 [ssb] */
/* {{{ includes */
#include "php.h"
#include "php_globals.h"
#include "ext/standard/flock_compat.h"
#include "ext/standard/exec.h"
#include "ext/standard/php_filestat.h"
#include "php_open_temporary_file.h"
#include "ext/standard/basic_functions.h"
#include "php_ini.h"
#include "php_smart_str.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef PHP_WIN32
#include <io.h>
#define O_RDONLY _O_RDONLY
#include "win32/param.h"
#include "win32/winutil.h"
#include "win32/fnmatch.h"
#elif defined(NETWARE)
#include <sys/param.h>
#include <sys/select.h>
#ifdef USE_WINSOCK
#include <novsock2.h>
#else
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#endif
#else
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if defined(NETWARE) && defined(USE_WINSOCK)
#include <novsock2.h>
#else
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#endif
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#endif
#include "ext/standard/head.h"
#include "safe_mode.h"
#include "php_string.h"
#include "file.h"
#if HAVE_PWD_H
#ifdef PHP_WIN32
#include "win32/pwd.h"
#else
#include <pwd.h>
#endif
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include "fsock.h"
#include "fopen_wrappers.h"
#include "streamsfuncs.h"
#include "php_globals.h"
#ifdef HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#if MISSING_FCLOSE_DECL
extern int fclose(FILE *);
#endif
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include "scanf.h"
#include "zend_API.h"
#ifdef ZTS
int file_globals_id;
#else
php_file_globals file_globals;
#endif
#if defined(HAVE_FNMATCH) && !defined(PHP_WIN32)
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <fnmatch.h>
#endif
#ifdef HAVE_WCHAR_H
#include <wchar.h>
#endif
#ifndef S_ISDIR
#define S_ISDIR(mode) (((mode)&S_IFMT) == S_IFDIR)
#endif
/* }}} */
#define PHP_STREAM_TO_ZVAL(stream, arg) \
php_stream_from_zval_no_verify(stream, arg); \
if (stream == NULL) { \
RETURN_FALSE; \
}
/* {{{ ZTS-stuff / Globals / Prototypes */
/* sharing globals is *evil* */
static int le_stream_context = FAILURE;
PHPAPI int php_le_stream_context(void)
{
return le_stream_context;
}
/* }}} */
/* {{{ Module-Stuff
*/
static ZEND_RSRC_DTOR_FUNC(file_context_dtor)
{
php_stream_context *context = (php_stream_context*)rsrc->ptr;
if (context->options) {
zval_ptr_dtor(&context->options);
context->options = NULL;
}
php_stream_context_free(context);
}
static void file_globals_ctor(php_file_globals *file_globals_p TSRMLS_DC)
{
FG(pclose_ret) = 0;
FG(user_stream_current_filename) = NULL;
FG(def_chunk_size) = PHP_SOCK_CHUNK_SIZE;
}
static void file_globals_dtor(php_file_globals *file_globals_p TSRMLS_DC)
{
}
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("user_agent", NULL, PHP_INI_ALL, OnUpdateString, user_agent, php_file_globals, file_globals)
STD_PHP_INI_ENTRY("default_socket_timeout", "60", PHP_INI_ALL, OnUpdateLong, default_socket_timeout, php_file_globals, file_globals)
STD_PHP_INI_ENTRY("auto_detect_line_endings", "0", PHP_INI_ALL, OnUpdateLong, auto_detect_line_endings, php_file_globals, file_globals)
PHP_INI_END()
PHP_MINIT_FUNCTION(file)
{
le_stream_context = zend_register_list_destructors_ex(file_context_dtor, NULL, "stream-context", module_number);
#ifdef ZTS
ts_allocate_id(&file_globals_id, sizeof(php_file_globals), (ts_allocate_ctor) file_globals_ctor, (ts_allocate_dtor) file_globals_dtor);
#else
file_globals_ctor(&file_globals TSRMLS_CC);
#endif
REGISTER_INI_ENTRIES();
REGISTER_LONG_CONSTANT("SEEK_SET", SEEK_SET, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SEEK_CUR", SEEK_CUR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SEEK_END", SEEK_END, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LOCK_SH", PHP_LOCK_SH, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LOCK_EX", PHP_LOCK_EX, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LOCK_UN", PHP_LOCK_UN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LOCK_NB", PHP_LOCK_NB, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_CONNECT", PHP_STREAM_NOTIFY_CONNECT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_AUTH_REQUIRED", PHP_STREAM_NOTIFY_AUTH_REQUIRED, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_AUTH_RESULT", PHP_STREAM_NOTIFY_AUTH_RESULT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_MIME_TYPE_IS", PHP_STREAM_NOTIFY_MIME_TYPE_IS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_FILE_SIZE_IS", PHP_STREAM_NOTIFY_FILE_SIZE_IS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_REDIRECTED", PHP_STREAM_NOTIFY_REDIRECTED, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_PROGRESS", PHP_STREAM_NOTIFY_PROGRESS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_FAILURE", PHP_STREAM_NOTIFY_FAILURE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_COMPLETED", PHP_STREAM_NOTIFY_COMPLETED, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_RESOLVE", PHP_STREAM_NOTIFY_RESOLVE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_SEVERITY_INFO", PHP_STREAM_NOTIFY_SEVERITY_INFO, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_SEVERITY_WARN", PHP_STREAM_NOTIFY_SEVERITY_WARN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_NOTIFY_SEVERITY_ERR", PHP_STREAM_NOTIFY_SEVERITY_ERR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_FILTER_READ", PHP_STREAM_FILTER_READ, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_FILTER_WRITE", PHP_STREAM_FILTER_WRITE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_FILTER_ALL", PHP_STREAM_FILTER_ALL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CLIENT_PERSISTENT", PHP_STREAM_CLIENT_PERSISTENT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CLIENT_ASYNC_CONNECT", PHP_STREAM_CLIENT_ASYNC_CONNECT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CLIENT_CONNECT", PHP_STREAM_CLIENT_CONNECT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_SSLv2_CLIENT", STREAM_CRYPTO_METHOD_SSLv2_CLIENT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_SSLv3_CLIENT", STREAM_CRYPTO_METHOD_SSLv3_CLIENT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_SSLv23_CLIENT", STREAM_CRYPTO_METHOD_SSLv23_CLIENT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_TLS_CLIENT", STREAM_CRYPTO_METHOD_TLS_CLIENT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_SSLv2_SERVER", STREAM_CRYPTO_METHOD_SSLv2_SERVER, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_SSLv3_SERVER", STREAM_CRYPTO_METHOD_SSLv3_SERVER, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_SSLv23_SERVER", STREAM_CRYPTO_METHOD_SSLv23_SERVER, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_CRYPTO_METHOD_TLS_SERVER", STREAM_CRYPTO_METHOD_TLS_SERVER, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_SHUT_RD", STREAM_SHUT_RD, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_SHUT_WR", STREAM_SHUT_WR, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_SHUT_RDWR", STREAM_SHUT_RDWR, CONST_CS|CONST_PERSISTENT);
#ifdef PF_INET
REGISTER_LONG_CONSTANT("STREAM_PF_INET", PF_INET, CONST_CS|CONST_PERSISTENT);
#elif defined(AF_INET)
REGISTER_LONG_CONSTANT("STREAM_PF_INET", AF_INET, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef PF_INET6
REGISTER_LONG_CONSTANT("STREAM_PF_INET6", PF_INET6, CONST_CS|CONST_PERSISTENT);
#elif defined(AF_INET6)
REGISTER_LONG_CONSTANT("STREAM_PF_INET6", AF_INET6, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef PF_UNIX
REGISTER_LONG_CONSTANT("STREAM_PF_UNIX", PF_UNIX, CONST_CS|CONST_PERSISTENT);
#elif defined(AF_UNIX)
REGISTER_LONG_CONSTANT("STREAM_PF_UNIX", AF_UNIX, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef IPPROTO_IP
/* most people will use this one when calling socket() or socketpair() */
REGISTER_LONG_CONSTANT("STREAM_IPPROTO_IP", IPPROTO_IP, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef IPPROTO_TCP
REGISTER_LONG_CONSTANT("STREAM_IPPROTO_TCP", IPPROTO_TCP, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef IPPROTO_UDP
REGISTER_LONG_CONSTANT("STREAM_IPPROTO_UDP", IPPROTO_UDP, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef IPPROTO_ICMP
REGISTER_LONG_CONSTANT("STREAM_IPPROTO_ICMP", IPPROTO_ICMP, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef IPPROTO_RAW
REGISTER_LONG_CONSTANT("STREAM_IPPROTO_RAW", IPPROTO_RAW, CONST_CS|CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("STREAM_SOCK_STREAM", SOCK_STREAM, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_SOCK_DGRAM", SOCK_DGRAM, CONST_CS|CONST_PERSISTENT);
#ifdef SOCK_RAW
REGISTER_LONG_CONSTANT("STREAM_SOCK_RAW", SOCK_RAW, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef SOCK_SEQPACKET
REGISTER_LONG_CONSTANT("STREAM_SOCK_SEQPACKET", SOCK_SEQPACKET, CONST_CS|CONST_PERSISTENT);
#endif
#ifdef SOCK_RDM
REGISTER_LONG_CONSTANT("STREAM_SOCK_RDM", SOCK_RDM, CONST_CS|CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("STREAM_PEEK", STREAM_PEEK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_OOB", STREAM_OOB, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_SERVER_BIND", STREAM_XPORT_BIND, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STREAM_SERVER_LISTEN", STREAM_XPORT_LISTEN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FILE_USE_INCLUDE_PATH", PHP_FILE_USE_INCLUDE_PATH, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FILE_IGNORE_NEW_LINES", PHP_FILE_IGNORE_NEW_LINES, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FILE_SKIP_EMPTY_LINES", PHP_FILE_SKIP_EMPTY_LINES, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FILE_APPEND", PHP_FILE_APPEND, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FILE_NO_DEFAULT_CONTEXT", PHP_FILE_NO_DEFAULT_CONTEXT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FILE_TEXT", 0, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FILE_BINARY", 0, CONST_CS | CONST_PERSISTENT);
#ifdef HAVE_FNMATCH
REGISTER_LONG_CONSTANT("FNM_NOESCAPE", FNM_NOESCAPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FNM_PATHNAME", FNM_PATHNAME, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("FNM_PERIOD", FNM_PERIOD, CONST_CS | CONST_PERSISTENT);
#ifdef FNM_CASEFOLD /* a GNU extension */ /* TODO emulate if not available */
REGISTER_LONG_CONSTANT("FNM_CASEFOLD", FNM_CASEFOLD, CONST_CS | CONST_PERSISTENT);
#endif
#endif
return SUCCESS;
}
/* }}} */
PHP_MSHUTDOWN_FUNCTION(file) /* {{{ */
{
#ifndef ZTS
file_globals_dtor(&file_globals TSRMLS_CC);
#endif
return SUCCESS;
}
/* }}} */
static int flock_values[] = { LOCK_SH, LOCK_EX, LOCK_UN };
/* {{{ proto bool flock(resource fp, int operation [, int &wouldblock])
Portable file locking */
PHP_FUNCTION(flock)
{
zval *arg1, *arg3 = NULL;
int act;
php_stream *stream;
long operation = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl|z", &arg1, &operation, &arg3) == FAILURE) {
return;
}
PHP_STREAM_TO_ZVAL(stream, &arg1);
act = operation & 3;
if (act < 1 || act > 3) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Illegal operation argument");
RETURN_FALSE;
}
if (arg3 && PZVAL_IS_REF(arg3)) {
convert_to_long_ex(&arg3);
Z_LVAL_P(arg3) = 0;
}
/* flock_values contains all possible actions if (operation & 4) we won't block on the lock */
act = flock_values[act - 1] | (operation & PHP_LOCK_NB ? LOCK_NB : 0);
if (php_stream_lock(stream, act)) {
if (operation && errno == EWOULDBLOCK && arg3 && PZVAL_IS_REF(arg3)) {
Z_LVAL_P(arg3) = 1;
}
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
#define PHP_META_UNSAFE ".\\+*?[^]$() "
/* {{{ proto array get_meta_tags(string filename [, bool use_include_path])
Extracts all meta tag content attributes from a file and returns an array */
PHP_FUNCTION(get_meta_tags)
{
char *filename;
int filename_len;
zend_bool use_include_path = 0;
int in_tag = 0, done = 0;
int looking_for_val = 0, have_name = 0, have_content = 0;
int saw_name = 0, saw_content = 0;
char *name = NULL, *value = NULL, *temp = NULL;
php_meta_tags_token tok, tok_last;
php_meta_tags_data md;
/* Initiailize our structure */
memset(&md, 0, sizeof(md));
/* Parse arguments */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &filename, &filename_len, &use_include_path) == FAILURE) {
return;
}
md.stream = php_stream_open_wrapper(filename, "rb",
(use_include_path ? USE_PATH : 0) | ENFORCE_SAFE_MODE | REPORT_ERRORS,
NULL);
if (!md.stream) {
RETURN_FALSE;
}
array_init(return_value);
tok_last = TOK_EOF;
while (!done && (tok = php_next_meta_token(&md TSRMLS_CC)) != TOK_EOF) {
if (tok == TOK_ID) {
if (tok_last == TOK_OPENTAG) {
md.in_meta = !strcasecmp("meta", md.token_data);
} else if (tok_last == TOK_SLASH && in_tag) {
if (strcasecmp("head", md.token_data) == 0) {
/* We are done here! */
done = 1;
}
} else if (tok_last == TOK_EQUAL && looking_for_val) {
if (saw_name) {
STR_FREE(name);
/* Get the NAME attr (Single word attr, non-quoted) */
temp = name = estrndup(md.token_data, md.token_len);
while (temp && *temp) {
if (strchr(PHP_META_UNSAFE, *temp)) {
*temp = '_';
}
temp++;
}
have_name = 1;
} else if (saw_content) {
STR_FREE(value);
/* Get the CONTENT attr (Single word attr, non-quoted) */
if (PG(magic_quotes_runtime)) {
value = php_addslashes(md.token_data, 0, &md.token_len, 0 TSRMLS_CC);
} else {
value = estrndup(md.token_data, md.token_len);
}
have_content = 1;
}
looking_for_val = 0;
} else {
if (md.in_meta) {
if (strcasecmp("name", md.token_data) == 0) {
saw_name = 1;
saw_content = 0;
looking_for_val = 1;
} else if (strcasecmp("content", md.token_data) == 0) {
saw_name = 0;
saw_content = 1;
looking_for_val = 1;
}
}
}
} else if (tok == TOK_STRING && tok_last == TOK_EQUAL && looking_for_val) {
if (saw_name) {
STR_FREE(name);
/* Get the NAME attr (Quoted single/double) */
temp = name = estrndup(md.token_data, md.token_len);
while (temp && *temp) {
if (strchr(PHP_META_UNSAFE, *temp)) {
*temp = '_';
}
temp++;
}
have_name = 1;
} else if (saw_content) {
STR_FREE(value);
/* Get the CONTENT attr (Single word attr, non-quoted) */
if (PG(magic_quotes_runtime)) {
value = php_addslashes(md.token_data, 0, &md.token_len, 0 TSRMLS_CC);
} else {
value = estrndup(md.token_data, md.token_len);
}
have_content = 1;
}
looking_for_val = 0;
} else if (tok == TOK_OPENTAG) {
if (looking_for_val) {
looking_for_val = 0;
have_name = saw_name = 0;
have_content = saw_content = 0;
}
in_tag = 1;
} else if (tok == TOK_CLOSETAG) {
if (have_name) {
/* For BC */
php_strtolower(name, strlen(name));
if (have_content) {
add_assoc_string(return_value, name, value, 1);
} else {
add_assoc_string(return_value, name, "", 1);
}
efree(name);
STR_FREE(value);
} else if (have_content) {
efree(value);
}
name = value = NULL;
/* Reset all of our flags */
in_tag = looking_for_val = 0;
have_name = saw_name = 0;
have_content = saw_content = 0;
md.in_meta = 0;
}
tok_last = tok;
if (md.token_data)
efree(md.token_data);
md.token_data = NULL;
}
STR_FREE(value);
STR_FREE(name);
php_stream_close(md.stream);
}
/* }}} */
/* {{{ proto string file_get_contents(string filename [, bool use_include_path [, resource context [, long offset [, long maxlen]]]])
Read the entire file into a string */
PHP_FUNCTION(file_get_contents)
{
char *filename;
int filename_len;
char *contents;
zend_bool use_include_path = 0;
php_stream *stream;
int len;
long offset = -1;
long maxlen = PHP_STREAM_COPY_ALL;
zval *zcontext = NULL;
php_stream_context *context = NULL;
/* Parse arguments */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|br!ll", &filename, &filename_len, &use_include_path, &zcontext, &offset, &maxlen) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS() == 5 && maxlen < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "length must be greater than or equal to zero");
RETURN_FALSE;
}
context = php_stream_context_from_zval(zcontext, 0);
stream = php_stream_open_wrapper_ex(filename, "rb",
(use_include_path ? USE_PATH : 0) | ENFORCE_SAFE_MODE | REPORT_ERRORS,
NULL, context);
if (!stream) {
RETURN_FALSE;
}
if (offset > 0 && php_stream_seek(stream, offset, SEEK_SET) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to seek to position %ld in the stream", offset);
php_stream_close(stream);
RETURN_FALSE;
}
/* uses mmap if possible */
if ((len = php_stream_copy_to_mem(stream, &contents, maxlen, 0)) > 0) {
if (PG(magic_quotes_runtime)) {
contents = php_addslashes(contents, len, &len, 1 TSRMLS_CC); /* 1 = free source string */
}
RETVAL_STRINGL(contents, len, 0);
} else if (len == 0) {
RETVAL_EMPTY_STRING();
} else {
RETVAL_FALSE;
}
php_stream_close(stream);
}
/* }}} */
/* {{{ proto int file_put_contents(string file, mixed data [, int flags [, resource context]])
Write/Create a file with contents data and return the number of bytes written */
PHP_FUNCTION(file_put_contents)
{
php_stream *stream;
char *filename;
int filename_len;
zval *data;
int numbytes = 0;
long flags = 0;
zval *zcontext = NULL;
php_stream_context *context = NULL;
php_stream *srcstream = NULL;
char mode[3] = "wb";
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz/|lr!", &filename, &filename_len, &data, &flags, &zcontext) == FAILURE) {
return;
}
if (Z_TYPE_P(data) == IS_RESOURCE) {
php_stream_from_zval(srcstream, &data);
}
context = php_stream_context_from_zval(zcontext, flags & PHP_FILE_NO_DEFAULT_CONTEXT);
if (flags & PHP_FILE_APPEND) {
mode[0] = 'a';
} else if (flags & LOCK_EX) {
/* check to make sure we are dealing with a regular file */
if (php_memnstr(filename, "://", sizeof("://") - 1, filename + filename_len)) {
if (strncasecmp(filename, "file://", sizeof("file://") - 1)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Exclusive locks may only be set for regular files");
RETURN_FALSE;
}
}
mode[0] = 'c';
}
mode[2] = '\0';
stream = php_stream_open_wrapper_ex(filename, mode, ((flags & PHP_FILE_USE_INCLUDE_PATH) ? USE_PATH : 0) | ENFORCE_SAFE_MODE | REPORT_ERRORS, NULL, context);
if (stream == NULL) {
RETURN_FALSE;
}
if (flags & LOCK_EX && (!php_stream_supports_lock(stream) || php_stream_lock(stream, LOCK_EX))) {
php_stream_close(stream);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Exclusive locks are not supported for this stream");
RETURN_FALSE;
}
if (mode[0] == 'c') {
php_stream_truncate_set_size(stream, 0);
}
switch (Z_TYPE_P(data)) {
case IS_RESOURCE: {
size_t len;
if (php_stream_copy_to_stream_ex(srcstream, stream, PHP_STREAM_COPY_ALL, &len) != SUCCESS) {
numbytes = -1;
} else {
numbytes = len;
}
break;
}
case IS_NULL:
case IS_LONG:
case IS_DOUBLE:
case IS_BOOL:
case IS_CONSTANT:
convert_to_string_ex(&data);
case IS_STRING:
if (Z_STRLEN_P(data)) {
numbytes = php_stream_write(stream, Z_STRVAL_P(data), Z_STRLEN_P(data));
if (numbytes != Z_STRLEN_P(data)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Only %d of %d bytes written, possibly out of free disk space", numbytes, Z_STRLEN_P(data));
numbytes = -1;
}
}
break;
case IS_ARRAY:
if (zend_hash_num_elements(Z_ARRVAL_P(data))) {
int bytes_written;
zval **tmp;
HashPosition pos;
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(data), &pos);
while (zend_hash_get_current_data_ex(Z_ARRVAL_P(data), (void **) &tmp, &pos) == SUCCESS) {
if ((*tmp)->type != IS_STRING) {
SEPARATE_ZVAL(tmp);
convert_to_string(*tmp);
}
if (Z_STRLEN_PP(tmp)) {
numbytes += Z_STRLEN_PP(tmp);
bytes_written = php_stream_write(stream, Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp));
if (bytes_written < 0 || bytes_written != Z_STRLEN_PP(tmp)) {
if (bytes_written < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to write %d bytes to %s", Z_STRLEN_PP(tmp), filename);
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Only %d of %d bytes written, possibly out of free disk space", bytes_written, Z_STRLEN_PP(tmp));
}
numbytes = -1;
break;
}
}
zend_hash_move_forward_ex(Z_ARRVAL_P(data), &pos);
}
}
break;
case IS_OBJECT:
if (Z_OBJ_HT_P(data) != NULL) {
zval out;
if (zend_std_cast_object_tostring(data, &out, IS_STRING TSRMLS_CC) == SUCCESS) {
numbytes = php_stream_write(stream, Z_STRVAL(out), Z_STRLEN(out));
if (numbytes != Z_STRLEN(out)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Only %d of %d bytes written, possibly out of free disk space", numbytes, Z_STRLEN(out));
numbytes = -1;
}
zval_dtor(&out);
break;
}
}
default:
numbytes = -1;
break;
}
php_stream_close(stream);
if (numbytes < 0) {
RETURN_FALSE;
}
RETURN_LONG(numbytes);
}
/* }}} */
#define PHP_FILE_BUF_SIZE 80
/* {{{ proto array file(string filename [, int flags[, resource context]])
Read entire file into an array */
PHP_FUNCTION(file)
{
char *filename;
int filename_len;
char *slashed, *target_buf=NULL, *p, *s, *e;
register int i = 0;
int target_len, len;
char eol_marker = '\n';
long flags = 0;
zend_bool use_include_path;
zend_bool include_new_line;
zend_bool skip_blank_lines;
php_stream *stream;
zval *zcontext = NULL;
php_stream_context *context = NULL;
/* Parse arguments */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|lr!", &filename, &filename_len, &flags, &zcontext) == FAILURE) {
return;
}
if (flags < 0 || flags > (PHP_FILE_USE_INCLUDE_PATH | PHP_FILE_IGNORE_NEW_LINES | PHP_FILE_SKIP_EMPTY_LINES | PHP_FILE_NO_DEFAULT_CONTEXT)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "'%ld' flag is not supported", flags);
RETURN_FALSE;
}
use_include_path = flags & PHP_FILE_USE_INCLUDE_PATH;
include_new_line = !(flags & PHP_FILE_IGNORE_NEW_LINES);
skip_blank_lines = flags & PHP_FILE_SKIP_EMPTY_LINES;
context = php_stream_context_from_zval(zcontext, flags & PHP_FILE_NO_DEFAULT_CONTEXT);
stream = php_stream_open_wrapper_ex(filename, "rb", (use_include_path ? USE_PATH : 0) | ENFORCE_SAFE_MODE | REPORT_ERRORS, NULL, context);
if (!stream) {
RETURN_FALSE;
}
/* Initialize return array */
array_init(return_value);
if ((target_len = php_stream_copy_to_mem(stream, &target_buf, PHP_STREAM_COPY_ALL, 0))) {
s = target_buf;
e = target_buf + target_len;
if (!(p = php_stream_locate_eol(stream, target_buf, target_len TSRMLS_CC))) {
p = e;
goto parse_eol;
}
if (stream->flags & PHP_STREAM_FLAG_EOL_MAC) {
eol_marker = '\r';
}
/* for performance reasons the code is duplicated, so that the if (include_new_line)
* will not need to be done for every single line in the file.
*/
if (include_new_line) {
do {
p++;
parse_eol:
if (PG(magic_quotes_runtime)) {
/* s is in target_buf which is freed at the end of the function */
slashed = php_addslashes(s, (p-s), &len, 0 TSRMLS_CC);
add_index_stringl(return_value, i++, slashed, len, 0);
} else {
add_index_stringl(return_value, i++, estrndup(s, p-s), p-s, 0);
}
s = p;
} while ((p = memchr(p, eol_marker, (e-p))));
} else {
do {
int windows_eol = 0;
if (p != target_buf && eol_marker == '\n' && *(p - 1) == '\r') {
windows_eol++;
}
if (skip_blank_lines && !(p-s-windows_eol)) {
s = ++p;
continue;
}
if (PG(magic_quotes_runtime)) {
/* s is in target_buf which is freed at the end of the function */
slashed = php_addslashes(s, (p-s-windows_eol), &len, 0 TSRMLS_CC);
add_index_stringl(return_value, i++, slashed, len, 0);
} else {
add_index_stringl(return_value, i++, estrndup(s, p-s-windows_eol), p-s-windows_eol, 0);
}
s = ++p;
} while ((p = memchr(p, eol_marker, (e-p))));
}
/* handle any left overs of files without new lines */
if (s != e) {
p = e;
goto parse_eol;
}
}
if (target_buf) {
efree(target_buf);
}
php_stream_close(stream);
}
/* }}} */
/* {{{ proto string tempnam(string dir, string prefix)
Create a unique filename in a directory */
PHP_FUNCTION(tempnam)
{
char *dir, *prefix;
int dir_len, prefix_len;
size_t p_len;
char *opened_path;
char *p;
int fd;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &dir, &dir_len, &prefix, &prefix_len) == FAILURE) {
return;
}
if (php_check_open_basedir(dir TSRMLS_CC)) {
RETURN_FALSE;
}
php_basename(prefix, prefix_len, NULL, 0, &p, &p_len TSRMLS_CC);
if (p_len > 64) {
p[63] = '\0';
}
if ((fd = php_open_temporary_fd(dir, p, &opened_path TSRMLS_CC)) >= 0) {
close(fd);
RETVAL_STRING(opened_path, 0);
}
efree(p);
}
/* }}} */
/* {{{ proto resource tmpfile(void)
Create a temporary file that will be deleted automatically after use */
PHP_NAMED_FUNCTION(php_if_tmpfile)
{
php_stream *stream;
if (ZEND_NUM_ARGS() != 0) {
WRONG_PARAM_COUNT;
}
stream = php_stream_fopen_tmpfile();
if (stream) {
php_stream_to_zval(stream, return_value);
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto resource fopen(string filename, string mode [, bool use_include_path [, resource context]])
Open a file or a URL and return a file pointer */
PHP_NAMED_FUNCTION(php_if_fopen)
{
char *filename, *mode;
int filename_len, mode_len;
zend_bool use_include_path = 0;
zval *zcontext = NULL;
php_stream *stream;
php_stream_context *context = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|br", &filename, &filename_len, &mode, &mode_len, &use_include_path, &zcontext) == FAILURE) {
RETURN_FALSE;
}
context = php_stream_context_from_zval(zcontext, 0);
stream = php_stream_open_wrapper_ex(filename, mode, (use_include_path ? USE_PATH : 0) | ENFORCE_SAFE_MODE | REPORT_ERRORS, NULL, context);
if (stream == NULL) {
RETURN_FALSE;
}
php_stream_to_zval(stream, return_value);
}
/* }}} */
/* {{{ proto bool fclose(resource fp)
Close an open file pointer */
PHPAPI PHP_FUNCTION(fclose)
{
zval *arg1;
php_stream *stream;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &arg1) == FAILURE) {
RETURN_FALSE;
}
PHP_STREAM_TO_ZVAL(stream, &arg1);
if ((stream->flags & PHP_STREAM_FLAG_NO_FCLOSE) != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%d is not a valid stream resource", stream->rsrc_id);
RETURN_FALSE;
}
if (!stream->is_persistent) {
zend_list_delete(stream->rsrc_id);
} else {
php_stream_pclose(stream);
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto resource popen(string command, string mode)
Execute a command and open either a read or a write pipe to it */
PHP_FUNCTION(popen)
{
char *command, *mode;
int command_len, mode_len;
FILE *fp;
php_stream *stream;
char *posix_mode, *b, *buf = 0, *tmp;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &command, &command_len, &mode, &mode_len) == FAILURE) {
return;
}
posix_mode = estrndup(mode, mode_len);
#ifndef PHP_WIN32
{
char *z = memchr(posix_mode, 'b', mode_len);
if (z) {
memmove(z, z + 1, mode_len - (z - posix_mode));
}
}
#endif
if (PG(safe_mode)){
b = strchr(command, ' ');
if (!b) {
b = strrchr(command, '/');
} else {
char *c;
c = command;
while((*b != '/') && (b != c)) {
b--;
}
if (b == c) {
b = NULL;
}
}
if (b) {
spprintf(&buf, 0, "%s%s", PG(safe_mode_exec_dir), b);
} else {
spprintf(&buf, 0, "%s/%s", PG(safe_mode_exec_dir), command);
}
tmp = php_escape_shell_cmd(buf);
fp = VCWD_POPEN(tmp, posix_mode);
efree(tmp);
if (!fp) {
php_error_docref2(NULL TSRMLS_CC, buf, posix_mode, E_WARNING, "%s", strerror(errno));
efree(posix_mode);
efree(buf);
RETURN_FALSE;
}
efree(buf);
} else {
fp = VCWD_POPEN(command, posix_mode);
if (!fp) {
php_error_docref2(NULL TSRMLS_CC, command, posix_mode, E_WARNING, "%s", strerror(errno));
efree(posix_mode);
RETURN_FALSE;
}
}
stream = php_stream_fopen_from_pipe(fp, mode);
if (stream == NULL) {
php_error_docref2(NULL TSRMLS_CC, command, mode, E_WARNING, "%s", strerror(errno));
RETVAL_FALSE;
} else {
php_stream_to_zval(stream, return_value);
}