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basic_functions.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) 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: |
| https://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: Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "php_assert.h"
#include "php_crypt.h"
#include "php_streams.h"
#include "php_main.h"
#include "php_globals.h"
#include "php_variables.h"
#include "php_ini.h"
#include "php_image.h"
#include "php_standard.h"
#include "php_math.h"
#include "php_http.h"
#include "php_incomplete_class.h"
#include "php_getopt.h"
#include "php_ext_syslog.h"
#include "ext/standard/info.h"
#include "ext/session/php_session.h"
#include "zend_exceptions.h"
#include "zend_attributes.h"
#include "zend_ini.h"
#include "zend_operators.h"
#include "ext/standard/php_dns.h"
#include "ext/standard/php_uuencode.h"
#include "ext/standard/crc32_x86.h"
#ifdef PHP_WIN32
#include "win32/php_win32_globals.h"
#include "win32/time.h"
#include "win32/ioutil.h"
#endif
typedef struct yy_buffer_state *YY_BUFFER_STATE;
#include "zend.h"
#include "zend_ini_scanner.h"
#include "zend_language_scanner.h"
#include <zend_language_parser.h>
#include "zend_portability.h"
#include <stdarg.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <stdio.h>
#ifndef PHP_WIN32
#include <sys/types.h>
#include <sys/stat.h>
#endif
#ifndef PHP_WIN32
# include <netdb.h>
#else
#include "win32/inet.h"
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <locale.h>
#ifdef HAVE_LANGINFO_H
# include <langinfo.h>
#endif
#ifdef HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif
#ifdef HAVE_SYS_LOADAVG_H
# include <sys/loadavg.h>
#endif
#ifdef PHP_WIN32
# include "win32/unistd.h"
#endif
#ifndef INADDR_NONE
# define INADDR_NONE ((zend_ulong) -1)
#endif
#include "zend_globals.h"
#include "php_globals.h"
#include "SAPI.h"
#include "php_ticks.h"
#ifdef ZTS
PHPAPI int basic_globals_id;
#else
PHPAPI php_basic_globals basic_globals;
#endif
#include "php_fopen_wrappers.h"
#include "streamsfuncs.h"
#include "basic_functions_arginfo.h"
typedef struct _user_tick_function_entry {
zend_fcall_info fci;
zend_fcall_info_cache fci_cache;
bool calling;
} user_tick_function_entry;
#if HAVE_PUTENV
typedef struct {
char *putenv_string;
char *previous_value;
zend_string *key;
} putenv_entry;
#endif
/* some prototypes for local functions */
static void user_shutdown_function_dtor(zval *zv);
static void user_tick_function_dtor(user_tick_function_entry *tick_function_entry);
static const zend_module_dep standard_deps[] = { /* {{{ */
ZEND_MOD_OPTIONAL("session")
ZEND_MOD_END
};
/* }}} */
zend_module_entry basic_functions_module = { /* {{{ */
STANDARD_MODULE_HEADER_EX,
NULL,
standard_deps,
"standard", /* extension name */
ext_functions, /* function list */
PHP_MINIT(basic), /* process startup */
PHP_MSHUTDOWN(basic), /* process shutdown */
PHP_RINIT(basic), /* request startup */
PHP_RSHUTDOWN(basic), /* request shutdown */
PHP_MINFO(basic), /* extension info */
PHP_STANDARD_VERSION, /* extension version */
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef HAVE_PUTENV
static void php_putenv_destructor(zval *zv) /* {{{ */
{
putenv_entry *pe = Z_PTR_P(zv);
if (pe->previous_value) {
# ifdef PHP_WIN32
/* MSVCRT has a bug in putenv() when setting a variable that
* is already set; if the SetEnvironmentVariable() API call
* fails, the Crt will double free() a string.
* We try to avoid this by setting our own value first */
SetEnvironmentVariable(ZSTR_VAL(pe->key), "bugbug");
# endif
putenv(pe->previous_value);
# ifdef PHP_WIN32
efree(pe->previous_value);
# endif
} else {
# ifdef HAVE_UNSETENV
unsetenv(ZSTR_VAL(pe->key));
# elif defined(PHP_WIN32)
SetEnvironmentVariable(ZSTR_VAL(pe->key), NULL);
# ifndef ZTS
_putenv_s(ZSTR_VAL(pe->key), "");
# endif
# else
char **env;
for (env = environ; env != NULL && *env != NULL; env++) {
if (!strncmp(*env, ZSTR_VAL(pe->key), ZSTR_LEN(pe->key))
&& (*env)[ZSTR_LEN(pe->key)] == '=') { /* found it */
*env = "";
break;
}
}
# endif
}
#ifdef HAVE_TZSET
/* don't forget to reset the various libc globals that
* we might have changed by an earlier call to tzset(). */
if (zend_string_equals_literal_ci(pe->key, "TZ")) {
tzset();
}
#endif
free(pe->putenv_string);
zend_string_release(pe->key);
efree(pe);
}
/* }}} */
#endif
static void basic_globals_ctor(php_basic_globals *basic_globals_p) /* {{{ */
{
BG(umask) = -1;
BG(user_tick_functions) = NULL;
BG(user_filter_map) = NULL;
BG(serialize_lock) = 0;
memset(&BG(serialize), 0, sizeof(BG(serialize)));
memset(&BG(unserialize), 0, sizeof(BG(unserialize)));
memset(&BG(url_adapt_session_ex), 0, sizeof(BG(url_adapt_session_ex)));
memset(&BG(url_adapt_output_ex), 0, sizeof(BG(url_adapt_output_ex)));
BG(url_adapt_session_ex).type = 1;
BG(url_adapt_output_ex).type = 0;
zend_hash_init(&BG(url_adapt_session_hosts_ht), 0, NULL, NULL, 1);
zend_hash_init(&BG(url_adapt_output_hosts_ht), 0, NULL, NULL, 1);
#if defined(_REENTRANT)
memset(&BG(mblen_state), 0, sizeof(BG(mblen_state)));
#endif
BG(page_uid) = -1;
BG(page_gid) = -1;
BG(syslog_device) = NULL;
}
/* }}} */
static void basic_globals_dtor(php_basic_globals *basic_globals_p) /* {{{ */
{
if (basic_globals_p->url_adapt_session_ex.tags) {
zend_hash_destroy(basic_globals_p->url_adapt_session_ex.tags);
free(basic_globals_p->url_adapt_session_ex.tags);
}
if (basic_globals_p->url_adapt_output_ex.tags) {
zend_hash_destroy(basic_globals_p->url_adapt_output_ex.tags);
free(basic_globals_p->url_adapt_output_ex.tags);
}
zend_hash_destroy(&basic_globals_p->url_adapt_session_hosts_ht);
zend_hash_destroy(&basic_globals_p->url_adapt_output_hosts_ht);
}
/* }}} */
PHPAPI double php_get_nan(void) /* {{{ */
{
return ZEND_NAN;
}
/* }}} */
PHPAPI double php_get_inf(void) /* {{{ */
{
return ZEND_INFINITY;
}
/* }}} */
#define BASIC_MINIT_SUBMODULE(module) \
if (PHP_MINIT(module)(INIT_FUNC_ARGS_PASSTHRU) != SUCCESS) {\
return FAILURE; \
}
#define BASIC_RINIT_SUBMODULE(module) \
PHP_RINIT(module)(INIT_FUNC_ARGS_PASSTHRU);
#define BASIC_MINFO_SUBMODULE(module) \
PHP_MINFO(module)(ZEND_MODULE_INFO_FUNC_ARGS_PASSTHRU);
#define BASIC_RSHUTDOWN_SUBMODULE(module) \
PHP_RSHUTDOWN(module)(SHUTDOWN_FUNC_ARGS_PASSTHRU);
#define BASIC_MSHUTDOWN_SUBMODULE(module) \
PHP_MSHUTDOWN(module)(SHUTDOWN_FUNC_ARGS_PASSTHRU);
PHP_MINIT_FUNCTION(basic) /* {{{ */
{
#ifdef ZTS
ts_allocate_id(&basic_globals_id, sizeof(php_basic_globals), (ts_allocate_ctor) basic_globals_ctor, (ts_allocate_dtor) basic_globals_dtor);
# ifdef PHP_WIN32
ts_allocate_id(&php_win32_core_globals_id, sizeof(php_win32_core_globals), (ts_allocate_ctor)php_win32_core_globals_ctor, (ts_allocate_dtor)php_win32_core_globals_dtor );
# endif
#else
basic_globals_ctor(&basic_globals);
# ifdef PHP_WIN32
php_win32_core_globals_ctor(&the_php_win32_core_globals);
# endif
#endif
register_basic_functions_symbols(module_number);
php_ce_incomplete_class = register_class___PHP_Incomplete_Class();
php_register_incomplete_class_handlers();
assertion_error_ce = register_class_AssertionError(zend_ce_error);
BASIC_MINIT_SUBMODULE(var)
BASIC_MINIT_SUBMODULE(file)
BASIC_MINIT_SUBMODULE(pack)
BASIC_MINIT_SUBMODULE(browscap)
BASIC_MINIT_SUBMODULE(standard_filters)
BASIC_MINIT_SUBMODULE(user_filters)
BASIC_MINIT_SUBMODULE(password)
#ifdef ZTS
BASIC_MINIT_SUBMODULE(localeconv)
#endif
#ifdef ZEND_INTRIN_SSE4_2_FUNC_PTR
BASIC_MINIT_SUBMODULE(string_intrin)
#endif
#ifdef ZEND_INTRIN_SSE4_2_PCLMUL_FUNC_PTR
BASIC_MINIT_SUBMODULE(crc32_x86_intrin)
#endif
#if defined(ZEND_INTRIN_AVX2_FUNC_PTR) || defined(ZEND_INTRIN_SSSE3_FUNC_PTR)
BASIC_MINIT_SUBMODULE(base64_intrin)
#endif
BASIC_MINIT_SUBMODULE(crypt)
BASIC_MINIT_SUBMODULE(dir)
#ifdef HAVE_SYSLOG_H
BASIC_MINIT_SUBMODULE(syslog)
#endif
BASIC_MINIT_SUBMODULE(array)
BASIC_MINIT_SUBMODULE(assert)
BASIC_MINIT_SUBMODULE(url_scanner_ex)
#ifdef PHP_CAN_SUPPORT_PROC_OPEN
BASIC_MINIT_SUBMODULE(proc_open)
#endif
BASIC_MINIT_SUBMODULE(exec)
BASIC_MINIT_SUBMODULE(user_streams)
php_register_url_stream_wrapper("php", &php_stream_php_wrapper);
php_register_url_stream_wrapper("file", &php_plain_files_wrapper);
#ifdef HAVE_GLOB
php_register_url_stream_wrapper("glob", &php_glob_stream_wrapper);
#endif
php_register_url_stream_wrapper("data", &php_stream_rfc2397_wrapper);
php_register_url_stream_wrapper("http", &php_stream_http_wrapper);
php_register_url_stream_wrapper("ftp", &php_stream_ftp_wrapper);
return SUCCESS;
}
/* }}} */
PHP_MSHUTDOWN_FUNCTION(basic) /* {{{ */
{
#ifdef ZTS
ts_free_id(basic_globals_id);
#ifdef PHP_WIN32
ts_free_id(php_win32_core_globals_id);
#endif
#else
basic_globals_dtor(&basic_globals);
#ifdef PHP_WIN32
php_win32_core_globals_dtor(&the_php_win32_core_globals);
#endif
#endif
php_unregister_url_stream_wrapper("php");
php_unregister_url_stream_wrapper("http");
php_unregister_url_stream_wrapper("ftp");
BASIC_MSHUTDOWN_SUBMODULE(browscap)
BASIC_MSHUTDOWN_SUBMODULE(array)
BASIC_MSHUTDOWN_SUBMODULE(assert)
BASIC_MSHUTDOWN_SUBMODULE(url_scanner_ex)
BASIC_MSHUTDOWN_SUBMODULE(file)
BASIC_MSHUTDOWN_SUBMODULE(standard_filters)
#ifdef ZTS
BASIC_MSHUTDOWN_SUBMODULE(localeconv)
#endif
BASIC_MSHUTDOWN_SUBMODULE(crypt)
BASIC_MSHUTDOWN_SUBMODULE(password)
return SUCCESS;
}
/* }}} */
PHP_RINIT_FUNCTION(basic) /* {{{ */
{
memset(BG(strtok_table), 0, 256);
BG(serialize_lock) = 0;
memset(&BG(serialize), 0, sizeof(BG(serialize)));
memset(&BG(unserialize), 0, sizeof(BG(unserialize)));
BG(strtok_string) = NULL;
BG(strtok_last) = NULL;
BG(ctype_string) = NULL;
BG(locale_changed) = 0;
BG(user_compare_fci) = empty_fcall_info;
BG(user_compare_fci_cache) = empty_fcall_info_cache;
BG(page_uid) = -1;
BG(page_gid) = -1;
BG(page_inode) = -1;
BG(page_mtime) = -1;
#ifdef HAVE_PUTENV
zend_hash_init(&BG(putenv_ht), 1, NULL, php_putenv_destructor, 0);
#endif
BG(user_shutdown_function_names) = NULL;
PHP_RINIT(filestat)(INIT_FUNC_ARGS_PASSTHRU);
BASIC_RINIT_SUBMODULE(dir)
BASIC_RINIT_SUBMODULE(url_scanner_ex)
/* Setup default context */
FG(default_context) = NULL;
/* Default to global wrappers only */
FG(stream_wrappers) = NULL;
/* Default to global filters only */
FG(stream_filters) = NULL;
return SUCCESS;
}
/* }}} */
PHP_RSHUTDOWN_FUNCTION(basic) /* {{{ */
{
if (BG(strtok_string)) {
zend_string_release(BG(strtok_string));
BG(strtok_string) = NULL;
}
#ifdef HAVE_PUTENV
tsrm_env_lock();
zend_hash_destroy(&BG(putenv_ht));
tsrm_env_unlock();
#endif
if (BG(umask) != -1) {
umask(BG(umask));
}
/* Check if locale was changed and change it back
* to the value in startup environment */
if (BG(locale_changed)) {
setlocale(LC_ALL, "C");
zend_reset_lc_ctype_locale();
zend_update_current_locale();
if (BG(ctype_string)) {
zend_string_release_ex(BG(ctype_string), 0);
BG(ctype_string) = NULL;
}
}
/* FG(stream_wrappers) and FG(stream_filters) are destroyed
* during php_request_shutdown() */
PHP_RSHUTDOWN(filestat)(SHUTDOWN_FUNC_ARGS_PASSTHRU);
#ifdef HAVE_SYSLOG_H
BASIC_RSHUTDOWN_SUBMODULE(syslog);
#endif
BASIC_RSHUTDOWN_SUBMODULE(assert)
BASIC_RSHUTDOWN_SUBMODULE(url_scanner_ex)
BASIC_RSHUTDOWN_SUBMODULE(streams)
#ifdef PHP_WIN32
BASIC_RSHUTDOWN_SUBMODULE(win32_core_globals)
#endif
if (BG(user_tick_functions)) {
zend_llist_destroy(BG(user_tick_functions));
efree(BG(user_tick_functions));
BG(user_tick_functions) = NULL;
}
BASIC_RSHUTDOWN_SUBMODULE(user_filters)
BASIC_RSHUTDOWN_SUBMODULE(browscap)
BG(page_uid) = -1;
BG(page_gid) = -1;
return SUCCESS;
}
/* }}} */
PHP_MINFO_FUNCTION(basic) /* {{{ */
{
php_info_print_table_start();
BASIC_MINFO_SUBMODULE(dl)
BASIC_MINFO_SUBMODULE(mail)
php_info_print_table_end();
BASIC_MINFO_SUBMODULE(assert)
}
/* }}} */
/* {{{ Given the name of a constant this function will return the constant's associated value */
PHP_FUNCTION(constant)
{
zend_string *const_name;
zval *c;
zend_class_entry *scope;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STR(const_name)
ZEND_PARSE_PARAMETERS_END();
scope = zend_get_executed_scope();
c = zend_get_constant_ex(const_name, scope, ZEND_FETCH_CLASS_EXCEPTION);
if (!c) {
RETURN_THROWS();
}
ZVAL_COPY_OR_DUP(return_value, c);
if (Z_TYPE_P(return_value) == IS_CONSTANT_AST) {
if (UNEXPECTED(zval_update_constant_ex(return_value, scope) != SUCCESS)) {
RETURN_THROWS();
}
}
}
/* }}} */
/* {{{ Converts a packed inet address to a human readable IP address string */
PHP_FUNCTION(inet_ntop)
{
char *address;
size_t address_len;
int af = AF_INET;
char buffer[40];
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STRING(address, address_len)
ZEND_PARSE_PARAMETERS_END();
#ifdef HAVE_IPV6
if (address_len == 16) {
af = AF_INET6;
} else
#endif
if (address_len != 4) {
RETURN_FALSE;
}
if (!inet_ntop(af, address, buffer, sizeof(buffer))) {
RETURN_FALSE;
}
RETURN_STRING(buffer);
}
/* }}} */
#ifdef HAVE_INET_PTON
/* {{{ Converts a human readable IP address to a packed binary string */
PHP_FUNCTION(inet_pton)
{
int ret, af = AF_INET;
char *address;
size_t address_len;
char buffer[17];
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STRING(address, address_len)
ZEND_PARSE_PARAMETERS_END();
memset(buffer, 0, sizeof(buffer));
#ifdef HAVE_IPV6
if (strchr(address, ':')) {
af = AF_INET6;
} else
#endif
if (!strchr(address, '.')) {
RETURN_FALSE;
}
ret = inet_pton(af, address, buffer);
if (ret <= 0) {
RETURN_FALSE;
}
RETURN_STRINGL(buffer, af == AF_INET ? 4 : 16);
}
/* }}} */
#endif /* HAVE_INET_PTON */
/* {{{ Converts a string containing an (IPv4) Internet Protocol dotted address into a proper address */
PHP_FUNCTION(ip2long)
{
char *addr;
size_t addr_len;
#ifdef HAVE_INET_PTON
struct in_addr ip;
#else
zend_ulong ip;
#endif
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STRING(addr, addr_len)
ZEND_PARSE_PARAMETERS_END();
#ifdef HAVE_INET_PTON
if (addr_len == 0 || inet_pton(AF_INET, addr, &ip) != 1) {
RETURN_FALSE;
}
RETURN_LONG(ntohl(ip.s_addr));
#else
if (addr_len == 0 || (ip = inet_addr(addr)) == INADDR_NONE) {
/* The only special case when we should return -1 ourselves,
* because inet_addr() considers it wrong. We return 0xFFFFFFFF and
* not -1 or ~0 because of 32/64bit issues. */
if (addr_len == sizeof("255.255.255.255") - 1 &&
!memcmp(addr, "255.255.255.255", sizeof("255.255.255.255") - 1)
) {
RETURN_LONG(0xFFFFFFFF);
}
RETURN_FALSE;
}
RETURN_LONG(ntohl(ip));
#endif
}
/* }}} */
/* {{{ Converts an (IPv4) Internet network address into a string in Internet standard dotted format */
PHP_FUNCTION(long2ip)
{
zend_ulong ip;
zend_long sip;
struct in_addr myaddr;
char str[40];
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(sip)
ZEND_PARSE_PARAMETERS_END();
/* autoboxes on 32bit platforms, but that's expected */
ip = (zend_ulong)sip;
myaddr.s_addr = htonl(ip);
if (inet_ntop(AF_INET, &myaddr, str, sizeof(str))) {
RETURN_STRING(str);
} else {
RETURN_FALSE;
}
}
/* }}} */
/********************
* System Functions *
********************/
PHPAPI zend_string *php_getenv(const char *str, size_t str_len) {
#ifdef PHP_WIN32
{
wchar_t *keyw = php_win32_cp_conv_any_to_w(str, str_len, PHP_WIN32_CP_IGNORE_LEN_P);
if (!keyw) {
return NULL;
}
SetLastError(0);
/* If the given buffer is not large enough to hold the data, the return value is
* the buffer size, in characters, required to hold the string and its terminating
* null character. We use this return value to alloc the final buffer. */
wchar_t dummybuf;
DWORD size = GetEnvironmentVariableW(keyw, &dummybuf, 0);
if (GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
/* The environment variable doesn't exist. */
free(keyw);
return NULL;
}
if (size == 0) {
/* env exists, but it is empty */
free(keyw);
return ZSTR_EMPTY_ALLOC();
}
wchar_t *valw = emalloc((size + 1) * sizeof(wchar_t));
size = GetEnvironmentVariableW(keyw, valw, size);
if (size == 0) {
/* has been removed between the two calls */
free(keyw);
efree(valw);
return ZSTR_EMPTY_ALLOC();
} else {
char *ptr = php_win32_cp_w_to_any(valw);
zend_string *result = zend_string_init(ptr, strlen(ptr), 0);
free(ptr);
free(keyw);
efree(valw);
return result;
}
}
#else
tsrm_env_lock();
/* system method returns a const */
char *ptr = getenv(str);
zend_string *result = NULL;
if (ptr) {
result = zend_string_init(ptr, strlen(ptr), 0);
}
tsrm_env_unlock();
return result;
#endif
}
/* {{{ Get the value of an environment variable or every available environment variable
if no varname is present */
PHP_FUNCTION(getenv)
{
char *str = NULL;
size_t str_len;
bool local_only = 0;
ZEND_PARSE_PARAMETERS_START(0, 2)
Z_PARAM_OPTIONAL
Z_PARAM_STRING_OR_NULL(str, str_len)
Z_PARAM_BOOL(local_only)
ZEND_PARSE_PARAMETERS_END();
if (!str) {
array_init(return_value);
php_import_environment_variables(return_value);
return;
}
if (!local_only) {
/* SAPI method returns an emalloc()'d string */
char *ptr = sapi_getenv(str, str_len);
if (ptr) {
// TODO: avoid reallocation ???
RETVAL_STRING(ptr);
efree(ptr);
return;
}
}
zend_string *res = php_getenv(str, str_len);
if (res) {
RETURN_STR(res);
}
RETURN_FALSE;
}
/* }}} */
#ifdef HAVE_PUTENV
/* {{{ Set the value of an environment variable */
PHP_FUNCTION(putenv)
{
char *setting;
size_t setting_len;
char *p, **env;
putenv_entry pe;
#ifdef PHP_WIN32
const char *value = NULL;
int error_code;
#endif
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STRING(setting, setting_len)
ZEND_PARSE_PARAMETERS_END();
if (setting_len == 0 || setting[0] == '=') {
zend_argument_value_error(1, "must have a valid syntax");
RETURN_THROWS();
}
pe.putenv_string = zend_strndup(setting, setting_len);
if ((p = strchr(setting, '='))) {
pe.key = zend_string_init(setting, p - setting, 0);
#ifdef PHP_WIN32
value = p + 1;
#endif
} else {
pe.key = zend_string_init(setting, setting_len, 0);
}
tsrm_env_lock();
zend_hash_del(&BG(putenv_ht), pe.key);
/* find previous value */
pe.previous_value = NULL;
for (env = environ; env != NULL && *env != NULL; env++) {
if (!strncmp(*env, ZSTR_VAL(pe.key), ZSTR_LEN(pe.key))
&& (*env)[ZSTR_LEN(pe.key)] == '=') { /* found it */
#ifdef PHP_WIN32
/* must copy previous value because MSVCRT's putenv can free the string without notice */
pe.previous_value = estrdup(*env);
#else
pe.previous_value = *env;
#endif
break;
}
}
#ifdef HAVE_UNSETENV
if (!p) { /* no '=' means we want to unset it */
unsetenv(pe.putenv_string);
}
if (!p || putenv(pe.putenv_string) == 0) { /* success */
#else
# ifndef PHP_WIN32
if (putenv(pe.putenv_string) == 0) { /* success */
# else
wchar_t *keyw, *valw = NULL;
keyw = php_win32_cp_any_to_w(ZSTR_VAL(pe.key));
if (value) {
valw = php_win32_cp_any_to_w(value);
}
/* valw may be NULL, but the failed conversion still needs to be checked. */
if (!keyw || !valw && value) {
tsrm_env_unlock();
free(pe.putenv_string);
zend_string_release(pe.key);
free(keyw);
free(valw);
RETURN_FALSE;
}
error_code = SetEnvironmentVariableW(keyw, valw);
if (error_code != 0
# ifndef ZTS
/* We need both SetEnvironmentVariable and _putenv here as some
dependency lib could use either way to read the environment.
Obviously the CRT version will be useful more often. But
generally, doing both brings us on the safe track at least
in NTS build. */
&& _wputenv_s(keyw, valw ? valw : L"") == 0
# endif
) { /* success */
# endif
#endif
zend_hash_add_mem(&BG(putenv_ht), pe.key, &pe, sizeof(putenv_entry));
#ifdef HAVE_TZSET
if (zend_string_equals_literal_ci(pe.key, "TZ")) {
tzset();
}
#endif
tsrm_env_unlock();
#ifdef PHP_WIN32
free(keyw);
free(valw);
#endif
RETURN_TRUE;
} else {
free(pe.putenv_string);
zend_string_release(pe.key);
#ifdef PHP_WIN32
free(keyw);
free(valw);
#endif
RETURN_FALSE;
}
}
/* }}} */
#endif
/* {{{ free_argv()
Free the memory allocated to an argv array. */
static void free_argv(char **argv, int argc)
{
int i;
if (argv) {
for (i = 0; i < argc; i++) {
if (argv[i]) {
efree(argv[i]);
}
}
efree(argv);
}
}
/* }}} */
/* {{{ free_longopts()
Free the memory allocated to an longopt array. */
static void free_longopts(opt_struct *longopts)
{
opt_struct *p;
if (longopts) {
for (p = longopts; p && p->opt_char != '-'; p++) {
if (p->opt_name != NULL) {
efree((char *)(p->opt_name));
}
}
}
}
/* }}} */
/* {{{ parse_opts()
Convert the typical getopt input characters to the php_getopt struct array */
static int parse_opts(char * opts, opt_struct ** result)
{
opt_struct * paras = NULL;
unsigned int i, count = 0;
unsigned int opts_len = (unsigned int)strlen(opts);
for (i = 0; i < opts_len; i++) {
if ((opts[i] >= 48 && opts[i] <= 57) ||
(opts[i] >= 65 && opts[i] <= 90) ||
(opts[i] >= 97 && opts[i] <= 122)
) {
count++;
}
}
paras = safe_emalloc(sizeof(opt_struct), count, 0);
memset(paras, 0, sizeof(opt_struct) * count);
*result = paras;
while ( (*opts >= 48 && *opts <= 57) || /* 0 - 9 */
(*opts >= 65 && *opts <= 90) || /* A - Z */
(*opts >= 97 && *opts <= 122) /* a - z */
) {
paras->opt_char = *opts;
paras->need_param = *(++opts) == ':';
paras->opt_name = NULL;
if (paras->need_param == 1) {
opts++;
if (*opts == ':') {
paras->need_param++;
opts++;
}
}
paras++;
}
return count;
}
/* }}} */
/* {{{ Get options from the command line argument list */
PHP_FUNCTION(getopt)
{
char *options = NULL, **argv = NULL;
char opt[2] = { '\0' };
char *optname;
int argc = 0, o;
size_t options_len = 0, len;
char *php_optarg = NULL;
int php_optind = 1;
zval val, *args = NULL, *p_longopts = NULL;
zval *zoptind = NULL;
size_t optname_len = 0;
opt_struct *opts, *orig_opts;
ZEND_PARSE_PARAMETERS_START(1, 3)
Z_PARAM_STRING(options, options_len)
Z_PARAM_OPTIONAL
Z_PARAM_ARRAY(p_longopts)
Z_PARAM_ZVAL(zoptind)
ZEND_PARSE_PARAMETERS_END();
/* Init zoptind to 1 */
if (zoptind) {
ZEND_TRY_ASSIGN_REF_LONG(zoptind, 1);
}
/* Get argv from the global symbol table. We calculate argc ourselves
* in order to be on the safe side, even though it is also available
* from the symbol table. */
if ((Z_TYPE(PG(http_globals)[TRACK_VARS_SERVER]) == IS_ARRAY || zend_is_auto_global(ZSTR_KNOWN(ZEND_STR_AUTOGLOBAL_SERVER))) &&
((args = zend_hash_find_ex_ind(Z_ARRVAL_P(&PG(http_globals)[TRACK_VARS_SERVER]), ZSTR_KNOWN(ZEND_STR_ARGV), 1)) != NULL ||
(args = zend_hash_find_ex_ind(&EG(symbol_table), ZSTR_KNOWN(ZEND_STR_ARGV), 1)) != NULL)
) {
int pos = 0;
zval *entry;
if (Z_TYPE_P(args) != IS_ARRAY) {
RETURN_FALSE;
}
argc = zend_hash_num_elements(Z_ARRVAL_P(args));
/* Attempt to allocate enough memory to hold all of the arguments
* and a trailing NULL */
argv = (char **) safe_emalloc(sizeof(char *), (argc + 1), 0);
/* Iterate over the hash to construct the argv array. */
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(args), entry) {
zend_string *tmp_arg_str;
zend_string *arg_str = zval_get_tmp_string(entry, &tmp_arg_str);
argv[pos++] = estrdup(ZSTR_VAL(arg_str));
zend_tmp_string_release(tmp_arg_str);
} ZEND_HASH_FOREACH_END();
/* The C Standard requires argv[argc] to be NULL - this might
* keep some getopt implementations happy. */
argv[argc] = NULL;
} else {
/* Return false if we can't find argv. */