mirror of
https://github.com/php/php-src.git
synced 2024-09-21 09:57:23 +00:00
3892529fed
While similar errors are already reported via `strerror()` on other platforms, this has apparently overlooked for Windows, where only the error code has been reported so far. We adapt the affected test cases, but since there is no PHP userland function which allows us to get the current system locale, we work around. Closes GH-15687.
1514 lines
42 KiB
C
1514 lines
42 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| 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 |
|
|
| license@php.net so we can mail you a copy immediately. |
|
|
+----------------------------------------------------------------------+
|
|
| Author: Wez Furlong <wez@thebrainroom.com> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
#include "php.h"
|
|
#include <ctype.h>
|
|
#include <signal.h>
|
|
#include "ext/standard/basic_functions.h"
|
|
#include "ext/standard/file.h"
|
|
#include "exec.h"
|
|
#include "SAPI.h"
|
|
#include "main/php_network.h"
|
|
#include "zend_smart_str.h"
|
|
#ifdef PHP_WIN32
|
|
# include "win32/sockets.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
#include <sys/wait.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_FCNTL_H
|
|
#include <fcntl.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR_NP
|
|
/* Only defined on glibc >= 2.29, FreeBSD CURRENT, musl >= 1.1.24,
|
|
* MacOS Catalina or later..
|
|
* It should be posible to modify this so it is also
|
|
* used in older systems when $cwd == NULL but care must be taken
|
|
* as at least glibc < 2.24 has a legacy implementation known
|
|
* to be really buggy.
|
|
*/
|
|
#include <spawn.h>
|
|
#define USE_POSIX_SPAWN
|
|
#endif
|
|
|
|
/* This symbol is defined in ext/standard/config.m4.
|
|
* Essentially, it is set if you HAVE_FORK || PHP_WIN32
|
|
* Other platforms may modify that configure check and add suitable #ifdefs
|
|
* around the alternate code. */
|
|
#ifdef PHP_CAN_SUPPORT_PROC_OPEN
|
|
|
|
#ifdef HAVE_OPENPTY
|
|
# ifdef HAVE_PTY_H
|
|
# include <pty.h>
|
|
# elif defined(__FreeBSD__)
|
|
/* FreeBSD defines `openpty` in <libutil.h> */
|
|
# include <libutil.h>
|
|
# elif defined(__NetBSD__) || defined(__DragonFly__)
|
|
/* On recent NetBSD/DragonFlyBSD releases the emalloc, estrdup ... calls had been introduced in libutil */
|
|
# if defined(__NetBSD__)
|
|
# include <sys/termios.h>
|
|
# else
|
|
# include <termios.h>
|
|
# endif
|
|
extern int openpty(int *, int *, char *, struct termios *, struct winsize *);
|
|
# elif defined(__sun)
|
|
# include <termios.h>
|
|
# else
|
|
/* Mac OS X (and some BSDs) define `openpty` in <util.h> */
|
|
# include <util.h>
|
|
# endif
|
|
#elif defined(__sun)
|
|
# include <fcntl.h>
|
|
# include <stropts.h>
|
|
# include <termios.h>
|
|
# define HAVE_OPENPTY 1
|
|
|
|
/* Solaris before version 11.4 and Illumos do not have any openpty implementation */
|
|
int openpty(int *master, int *slave, char *name, struct termios *termp, struct winsize *winp)
|
|
{
|
|
int fd, sd;
|
|
const char *slaveid;
|
|
|
|
assert(master);
|
|
assert(slave);
|
|
|
|
sd = *master = *slave = -1;
|
|
fd = open("/dev/ptmx", O_NOCTTY|O_RDWR);
|
|
if (fd == -1) {
|
|
return -1;
|
|
}
|
|
/* Checking if we can have to the pseudo terminal */
|
|
if (grantpt(fd) != 0 || unlockpt(fd) != 0) {
|
|
goto fail;
|
|
}
|
|
slaveid = ptsname(fd);
|
|
if (!slaveid) {
|
|
goto fail;
|
|
}
|
|
|
|
/* Getting the slave path and pushing pseudo terminal */
|
|
sd = open(slaveid, O_NOCTTY|O_RDONLY);
|
|
if (sd == -1 || ioctl(sd, I_PUSH, "ptem") == -1) {
|
|
goto fail;
|
|
}
|
|
if (termp) {
|
|
if (tcgetattr(sd, termp) < 0) {
|
|
goto fail;
|
|
}
|
|
}
|
|
if (winp) {
|
|
if (ioctl(sd, TIOCSWINSZ, winp) == -1) {
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
*slave = sd;
|
|
*master = fd;
|
|
return 0;
|
|
fail:
|
|
if (sd != -1) {
|
|
close(sd);
|
|
}
|
|
if (fd != -1) {
|
|
close(fd);
|
|
}
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
#include "proc_open.h"
|
|
|
|
static int le_proc_open; /* Resource number for `proc` resources */
|
|
|
|
/* {{{ _php_array_to_envp
|
|
* Process the `environment` argument to `proc_open`
|
|
* Convert into data structures which can be passed to underlying OS APIs like `exec` on POSIX or
|
|
* `CreateProcessW` on Win32 */
|
|
static php_process_env _php_array_to_envp(zval *environment)
|
|
{
|
|
zval *element;
|
|
php_process_env env;
|
|
zend_string *key, *str;
|
|
#ifndef PHP_WIN32
|
|
char **ep;
|
|
#endif
|
|
char *p;
|
|
size_t sizeenv = 0;
|
|
HashTable *env_hash; /* temporary PHP array used as helper */
|
|
|
|
memset(&env, 0, sizeof(env));
|
|
|
|
if (!environment) {
|
|
return env;
|
|
}
|
|
|
|
uint32_t cnt = zend_hash_num_elements(Z_ARRVAL_P(environment));
|
|
|
|
if (cnt < 1) {
|
|
#ifndef PHP_WIN32
|
|
env.envarray = (char **) ecalloc(1, sizeof(char *));
|
|
#endif
|
|
env.envp = (char *) ecalloc(4, 1);
|
|
return env;
|
|
}
|
|
|
|
ALLOC_HASHTABLE(env_hash);
|
|
zend_hash_init(env_hash, cnt, NULL, NULL, 0);
|
|
|
|
/* first, we have to get the size of all the elements in the hash */
|
|
ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(environment), key, element) {
|
|
str = zval_get_string(element);
|
|
|
|
if (ZSTR_LEN(str) == 0) {
|
|
zend_string_release_ex(str, 0);
|
|
continue;
|
|
}
|
|
|
|
sizeenv += ZSTR_LEN(str) + 1;
|
|
|
|
if (key && ZSTR_LEN(key)) {
|
|
sizeenv += ZSTR_LEN(key) + 1;
|
|
zend_hash_add_ptr(env_hash, key, str);
|
|
} else {
|
|
zend_hash_next_index_insert_ptr(env_hash, str);
|
|
}
|
|
} ZEND_HASH_FOREACH_END();
|
|
|
|
#ifndef PHP_WIN32
|
|
ep = env.envarray = (char **) ecalloc(cnt + 1, sizeof(char *));
|
|
#endif
|
|
p = env.envp = (char *) ecalloc(sizeenv + 4, 1);
|
|
|
|
ZEND_HASH_FOREACH_STR_KEY_PTR(env_hash, key, str) {
|
|
#ifndef PHP_WIN32
|
|
*ep = p;
|
|
++ep;
|
|
#endif
|
|
|
|
if (key) {
|
|
p = zend_mempcpy(p, ZSTR_VAL(key), ZSTR_LEN(key));
|
|
*p++ = '=';
|
|
}
|
|
|
|
p = zend_mempcpy(p, ZSTR_VAL(str), ZSTR_LEN(str));
|
|
*p++ = '\0';
|
|
zend_string_release_ex(str, 0);
|
|
} ZEND_HASH_FOREACH_END();
|
|
|
|
assert((uint32_t)(p - env.envp) <= sizeenv);
|
|
|
|
zend_hash_destroy(env_hash);
|
|
FREE_HASHTABLE(env_hash);
|
|
|
|
return env;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ _php_free_envp
|
|
* Free the structures allocated by `_php_array_to_envp` */
|
|
static void _php_free_envp(php_process_env env)
|
|
{
|
|
#ifndef PHP_WIN32
|
|
if (env.envarray) {
|
|
efree(env.envarray);
|
|
}
|
|
#endif
|
|
if (env.envp) {
|
|
efree(env.envp);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
static pid_t waitpid_cached(php_process_handle *proc, int *wait_status, int options)
|
|
{
|
|
if (proc->has_cached_exit_wait_status) {
|
|
*wait_status = proc->cached_exit_wait_status_value;
|
|
return proc->child;
|
|
}
|
|
|
|
pid_t wait_pid = waitpid(proc->child, wait_status, options);
|
|
|
|
/* The "exit" status is the final status of the process.
|
|
* If we were to cache the status unconditionally,
|
|
* we would return stale statuses in the future after the process continues. */
|
|
if (wait_pid > 0 && WIFEXITED(*wait_status)) {
|
|
proc->has_cached_exit_wait_status = true;
|
|
proc->cached_exit_wait_status_value = *wait_status;
|
|
}
|
|
|
|
return wait_pid;
|
|
}
|
|
#endif
|
|
|
|
/* {{{ proc_open_rsrc_dtor
|
|
* Free `proc` resource, either because all references to it were dropped or because `pclose` or
|
|
* `proc_close` were called */
|
|
static void proc_open_rsrc_dtor(zend_resource *rsrc)
|
|
{
|
|
php_process_handle *proc = (php_process_handle*)rsrc->ptr;
|
|
#ifdef PHP_WIN32
|
|
DWORD wstatus;
|
|
#elif HAVE_SYS_WAIT_H
|
|
int wstatus;
|
|
int waitpid_options = 0;
|
|
pid_t wait_pid;
|
|
#endif
|
|
|
|
/* Close all handles to avoid a deadlock */
|
|
for (int i = 0; i < proc->npipes; i++) {
|
|
if (proc->pipes[i] != NULL) {
|
|
GC_DELREF(proc->pipes[i]);
|
|
zend_list_close(proc->pipes[i]);
|
|
proc->pipes[i] = NULL;
|
|
}
|
|
}
|
|
|
|
/* `pclose_wait` tells us: Are we freeing this resource because `pclose` or `proc_close` were
|
|
* called? If so, we need to wait until the child process exits, because its exit code is
|
|
* needed as the return value of those functions.
|
|
* But if we're freeing the resource because of GC, don't wait. */
|
|
#ifdef PHP_WIN32
|
|
if (FG(pclose_wait)) {
|
|
WaitForSingleObject(proc->childHandle, INFINITE);
|
|
}
|
|
GetExitCodeProcess(proc->childHandle, &wstatus);
|
|
if (wstatus == STILL_ACTIVE) {
|
|
FG(pclose_ret) = -1;
|
|
} else {
|
|
FG(pclose_ret) = wstatus;
|
|
}
|
|
CloseHandle(proc->childHandle);
|
|
|
|
#elif HAVE_SYS_WAIT_H
|
|
if (!FG(pclose_wait)) {
|
|
waitpid_options = WNOHANG;
|
|
}
|
|
do {
|
|
wait_pid = waitpid_cached(proc, &wstatus, waitpid_options);
|
|
} while (wait_pid == -1 && errno == EINTR);
|
|
|
|
if (wait_pid <= 0) {
|
|
FG(pclose_ret) = -1;
|
|
} else {
|
|
if (WIFEXITED(wstatus)) {
|
|
wstatus = WEXITSTATUS(wstatus);
|
|
}
|
|
FG(pclose_ret) = wstatus;
|
|
}
|
|
|
|
#else
|
|
FG(pclose_ret) = -1;
|
|
#endif
|
|
|
|
_php_free_envp(proc->env);
|
|
efree(proc->pipes);
|
|
zend_string_release_ex(proc->command, false);
|
|
efree(proc);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ PHP_MINIT_FUNCTION(proc_open) */
|
|
PHP_MINIT_FUNCTION(proc_open)
|
|
{
|
|
le_proc_open = zend_register_list_destructors_ex(proc_open_rsrc_dtor, NULL, "process",
|
|
module_number);
|
|
return SUCCESS;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Kill a process opened by `proc_open` */
|
|
PHP_FUNCTION(proc_terminate)
|
|
{
|
|
zval *zproc;
|
|
php_process_handle *proc;
|
|
zend_long sig_no = SIGTERM;
|
|
|
|
ZEND_PARSE_PARAMETERS_START(1, 2)
|
|
Z_PARAM_RESOURCE(zproc)
|
|
Z_PARAM_OPTIONAL
|
|
Z_PARAM_LONG(sig_no)
|
|
ZEND_PARSE_PARAMETERS_END();
|
|
|
|
proc = (php_process_handle*)zend_fetch_resource(Z_RES_P(zproc), "process", le_proc_open);
|
|
if (proc == NULL) {
|
|
RETURN_THROWS();
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
RETURN_BOOL(TerminateProcess(proc->childHandle, 255));
|
|
#else
|
|
RETURN_BOOL(kill(proc->child, sig_no) == 0);
|
|
#endif
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Close a process opened by `proc_open` */
|
|
PHP_FUNCTION(proc_close)
|
|
{
|
|
zval *zproc;
|
|
php_process_handle *proc;
|
|
|
|
ZEND_PARSE_PARAMETERS_START(1, 1)
|
|
Z_PARAM_RESOURCE(zproc)
|
|
ZEND_PARSE_PARAMETERS_END();
|
|
|
|
proc = (php_process_handle*)zend_fetch_resource(Z_RES_P(zproc), "process", le_proc_open);
|
|
if (proc == NULL) {
|
|
RETURN_THROWS();
|
|
}
|
|
|
|
FG(pclose_wait) = 1; /* See comment in `proc_open_rsrc_dtor` */
|
|
zend_list_close(Z_RES_P(zproc));
|
|
FG(pclose_wait) = 0;
|
|
RETURN_LONG(FG(pclose_ret));
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Get information about a process opened by `proc_open` */
|
|
PHP_FUNCTION(proc_get_status)
|
|
{
|
|
zval *zproc;
|
|
php_process_handle *proc;
|
|
#ifdef PHP_WIN32
|
|
DWORD wstatus;
|
|
#elif HAVE_SYS_WAIT_H
|
|
int wstatus;
|
|
pid_t wait_pid;
|
|
#endif
|
|
bool running = 1, signaled = 0, stopped = 0;
|
|
int exitcode = -1, termsig = 0, stopsig = 0;
|
|
|
|
ZEND_PARSE_PARAMETERS_START(1, 1)
|
|
Z_PARAM_RESOURCE(zproc)
|
|
ZEND_PARSE_PARAMETERS_END();
|
|
|
|
proc = (php_process_handle*)zend_fetch_resource(Z_RES_P(zproc), "process", le_proc_open);
|
|
if (proc == NULL) {
|
|
RETURN_THROWS();
|
|
}
|
|
|
|
array_init(return_value);
|
|
add_assoc_str(return_value, "command", zend_string_copy(proc->command));
|
|
add_assoc_long(return_value, "pid", (zend_long)proc->child);
|
|
|
|
#ifdef PHP_WIN32
|
|
GetExitCodeProcess(proc->childHandle, &wstatus);
|
|
running = wstatus == STILL_ACTIVE;
|
|
exitcode = running ? -1 : wstatus;
|
|
|
|
/* The status is always available on Windows and will always read the same,
|
|
* even if the child has already exited. This is because the result stays available
|
|
* until the child handle is closed. Hence no caching is used on Windows. */
|
|
add_assoc_bool(return_value, "cached", false);
|
|
#elif HAVE_SYS_WAIT_H
|
|
wait_pid = waitpid_cached(proc, &wstatus, WNOHANG|WUNTRACED);
|
|
|
|
if (wait_pid == proc->child) {
|
|
if (WIFEXITED(wstatus)) {
|
|
running = 0;
|
|
exitcode = WEXITSTATUS(wstatus);
|
|
}
|
|
if (WIFSIGNALED(wstatus)) {
|
|
running = 0;
|
|
signaled = 1;
|
|
termsig = WTERMSIG(wstatus);
|
|
}
|
|
if (WIFSTOPPED(wstatus)) {
|
|
stopped = 1;
|
|
stopsig = WSTOPSIG(wstatus);
|
|
}
|
|
} else if (wait_pid == -1) {
|
|
/* The only error which could occur here is ECHILD, which means that the PID we were
|
|
* looking for either does not exist or is not a child of this process */
|
|
running = 0;
|
|
}
|
|
|
|
add_assoc_bool(return_value, "cached", proc->has_cached_exit_wait_status);
|
|
#endif
|
|
|
|
add_assoc_bool(return_value, "running", running);
|
|
add_assoc_bool(return_value, "signaled", signaled);
|
|
add_assoc_bool(return_value, "stopped", stopped);
|
|
add_assoc_long(return_value, "exitcode", exitcode);
|
|
add_assoc_long(return_value, "termsig", termsig);
|
|
add_assoc_long(return_value, "stopsig", stopsig);
|
|
}
|
|
/* }}} */
|
|
|
|
#ifdef PHP_WIN32
|
|
|
|
/* We use this to allow child processes to inherit handles
|
|
* One static instance can be shared and used for all calls to `proc_open`, since the values are
|
|
* never changed */
|
|
SECURITY_ATTRIBUTES php_proc_open_security = {
|
|
.nLength = sizeof(SECURITY_ATTRIBUTES),
|
|
.lpSecurityDescriptor = NULL,
|
|
.bInheritHandle = TRUE
|
|
};
|
|
|
|
# define pipe(pair) (CreatePipe(&pair[0], &pair[1], &php_proc_open_security, 0) ? 0 : -1)
|
|
|
|
# define COMSPEC_NT "cmd.exe"
|
|
|
|
static inline HANDLE dup_handle(HANDLE src, BOOL inherit, BOOL closeorig)
|
|
{
|
|
HANDLE copy, self = GetCurrentProcess();
|
|
|
|
if (!DuplicateHandle(self, src, self, ©, 0, inherit, DUPLICATE_SAME_ACCESS |
|
|
(closeorig ? DUPLICATE_CLOSE_SOURCE : 0)))
|
|
return NULL;
|
|
return copy;
|
|
}
|
|
|
|
static inline HANDLE dup_fd_as_handle(int fd)
|
|
{
|
|
return dup_handle((HANDLE)_get_osfhandle(fd), TRUE, FALSE);
|
|
}
|
|
|
|
# define close_descriptor(fd) CloseHandle(fd)
|
|
#else /* !PHP_WIN32 */
|
|
# define close_descriptor(fd) close(fd)
|
|
#endif
|
|
|
|
/* Determines the type of a descriptor item. */
|
|
typedef enum _descriptor_type {
|
|
DESCRIPTOR_TYPE_STD,
|
|
DESCRIPTOR_TYPE_PIPE,
|
|
DESCRIPTOR_TYPE_SOCKET
|
|
} descriptor_type;
|
|
|
|
/* One instance of this struct is created for each item in `$descriptorspec` argument to `proc_open`
|
|
* They are used within `proc_open` and freed before it returns */
|
|
typedef struct _descriptorspec_item {
|
|
int index; /* desired FD # in child process */
|
|
descriptor_type type;
|
|
php_file_descriptor_t childend; /* FD # opened for use in child
|
|
* (will be copied to `index` in child) */
|
|
php_file_descriptor_t parentend; /* FD # opened for use in parent
|
|
* (for pipes only; will be 0 otherwise) */
|
|
int mode_flags; /* mode for opening FDs: r/o, r/w, binary (on Win32), etc */
|
|
} descriptorspec_item;
|
|
|
|
static zend_string *get_valid_arg_string(zval *zv, int elem_num) {
|
|
zend_string *str = zval_get_string(zv);
|
|
if (!str) {
|
|
return NULL;
|
|
}
|
|
|
|
if (elem_num == 1 && ZSTR_LEN(str) == 0) {
|
|
zend_value_error("First element must contain a non-empty program name");
|
|
zend_string_release(str);
|
|
return NULL;
|
|
}
|
|
|
|
if (strlen(ZSTR_VAL(str)) != ZSTR_LEN(str)) {
|
|
zend_value_error("Command array element %d contains a null byte", elem_num);
|
|
zend_string_release(str);
|
|
return NULL;
|
|
}
|
|
|
|
return str;
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
static void append_backslashes(smart_str *str, size_t num_bs)
|
|
{
|
|
for (size_t i = 0; i < num_bs; i++) {
|
|
smart_str_appendc(str, '\\');
|
|
}
|
|
}
|
|
|
|
const char *special_chars = "()!^\"<>&|%";
|
|
|
|
static bool is_special_character_present(const zend_string *arg)
|
|
{
|
|
for (size_t i = 0; i < ZSTR_LEN(arg); ++i) {
|
|
if (strchr(special_chars, ZSTR_VAL(arg)[i]) != NULL) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* See https://docs.microsoft.com/en-us/cpp/cpp/parsing-cpp-command-line-arguments and
|
|
* https://learn.microsoft.com/en-us/archive/blogs/twistylittlepassagesallalike/everyone-quotes-command-line-arguments-the-wrong-way */
|
|
static void append_win_escaped_arg(smart_str *str, zend_string *arg, bool is_cmd_argument)
|
|
{
|
|
size_t num_bs = 0;
|
|
bool has_special_character = false;
|
|
|
|
if (is_cmd_argument) {
|
|
has_special_character = is_special_character_present(arg);
|
|
if (has_special_character) {
|
|
/* Escape double quote with ^ if executed by cmd.exe. */
|
|
smart_str_appendc(str, '^');
|
|
}
|
|
}
|
|
smart_str_appendc(str, '"');
|
|
for (size_t i = 0; i < ZSTR_LEN(arg); ++i) {
|
|
char c = ZSTR_VAL(arg)[i];
|
|
if (c == '\\') {
|
|
num_bs++;
|
|
continue;
|
|
}
|
|
|
|
if (c == '"') {
|
|
/* Backslashes before " need to be doubled. */
|
|
num_bs = num_bs * 2 + 1;
|
|
}
|
|
append_backslashes(str, num_bs);
|
|
if (has_special_character && strchr(special_chars, c) != NULL) {
|
|
/* Escape special chars with ^ if executed by cmd.exe. */
|
|
smart_str_appendc(str, '^');
|
|
}
|
|
smart_str_appendc(str, c);
|
|
num_bs = 0;
|
|
}
|
|
append_backslashes(str, num_bs * 2);
|
|
if (has_special_character) {
|
|
/* Escape double quote with ^ if executed by cmd.exe. */
|
|
smart_str_appendc(str, '^');
|
|
}
|
|
smart_str_appendc(str, '"');
|
|
}
|
|
|
|
static bool is_executed_by_cmd(const char *prog_name, size_t prog_name_length)
|
|
{
|
|
size_t out_len;
|
|
WCHAR long_name[MAX_PATH];
|
|
WCHAR full_name[MAX_PATH];
|
|
LPWSTR file_part = NULL;
|
|
|
|
wchar_t *prog_name_wide = php_win32_cp_conv_any_to_w(prog_name, prog_name_length, &out_len);
|
|
|
|
if (GetLongPathNameW(prog_name_wide, long_name, MAX_PATH) == 0) {
|
|
/* This can fail for example with ERROR_FILE_NOT_FOUND (short path resolution only works for existing files)
|
|
* in which case we'll pass the path verbatim to the FullPath transformation. */
|
|
lstrcpynW(long_name, prog_name_wide, MAX_PATH);
|
|
}
|
|
|
|
free(prog_name_wide);
|
|
prog_name_wide = NULL;
|
|
|
|
if (GetFullPathNameW(long_name, MAX_PATH, full_name, &file_part) == 0 || file_part == NULL) {
|
|
return false;
|
|
}
|
|
|
|
bool uses_cmd = false;
|
|
if (_wcsicmp(file_part, L"cmd.exe") == 0 || _wcsicmp(file_part, L"cmd") == 0) {
|
|
uses_cmd = true;
|
|
} else {
|
|
const WCHAR *extension_dot = wcsrchr(file_part, L'.');
|
|
if (extension_dot && (_wcsicmp(extension_dot, L".bat") == 0 || _wcsicmp(extension_dot, L".cmd") == 0)) {
|
|
uses_cmd = true;
|
|
}
|
|
}
|
|
|
|
return uses_cmd;
|
|
}
|
|
|
|
static zend_string *create_win_command_from_args(HashTable *args)
|
|
{
|
|
smart_str str = {0};
|
|
zval *arg_zv;
|
|
bool is_prog_name = true;
|
|
bool is_cmd_execution = false;
|
|
int elem_num = 0;
|
|
|
|
ZEND_HASH_FOREACH_VAL(args, arg_zv) {
|
|
zend_string *arg_str = get_valid_arg_string(arg_zv, ++elem_num);
|
|
if (!arg_str) {
|
|
smart_str_free(&str);
|
|
return NULL;
|
|
}
|
|
|
|
if (is_prog_name) {
|
|
is_cmd_execution = is_executed_by_cmd(ZSTR_VAL(arg_str), ZSTR_LEN(arg_str));
|
|
} else {
|
|
smart_str_appendc(&str, ' ');
|
|
}
|
|
|
|
append_win_escaped_arg(&str, arg_str, !is_prog_name && is_cmd_execution);
|
|
|
|
is_prog_name = 0;
|
|
zend_string_release(arg_str);
|
|
} ZEND_HASH_FOREACH_END();
|
|
smart_str_0(&str);
|
|
return str.s;
|
|
}
|
|
|
|
/* Get a boolean option from the `other_options` array which can be passed to `proc_open`.
|
|
* (Currently, all options apply on Windows only.) */
|
|
static bool get_option(zval *other_options, char *opt_name, size_t opt_name_len)
|
|
{
|
|
HashTable *opt_ary = Z_ARRVAL_P(other_options);
|
|
zval *item = zend_hash_str_find_deref(opt_ary, opt_name, opt_name_len);
|
|
return item != NULL &&
|
|
(Z_TYPE_P(item) == IS_TRUE ||
|
|
((Z_TYPE_P(item) == IS_LONG) && Z_LVAL_P(item)));
|
|
}
|
|
|
|
/* Initialize STARTUPINFOW struct, used on Windows when spawning a process.
|
|
* Ref: https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/ns-processthreadsapi-startupinfow */
|
|
static void init_startup_info(STARTUPINFOW *si, descriptorspec_item *descriptors, int ndesc)
|
|
{
|
|
memset(si, 0, sizeof(STARTUPINFOW));
|
|
si->cb = sizeof(STARTUPINFOW);
|
|
si->dwFlags = STARTF_USESTDHANDLES;
|
|
|
|
si->hStdInput = GetStdHandle(STD_INPUT_HANDLE);
|
|
si->hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
|
|
si->hStdError = GetStdHandle(STD_ERROR_HANDLE);
|
|
|
|
/* redirect stdin/stdout/stderr if requested */
|
|
for (int i = 0; i < ndesc; i++) {
|
|
switch (descriptors[i].index) {
|
|
case 0:
|
|
si->hStdInput = descriptors[i].childend;
|
|
break;
|
|
case 1:
|
|
si->hStdOutput = descriptors[i].childend;
|
|
break;
|
|
case 2:
|
|
si->hStdError = descriptors[i].childend;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void init_process_info(PROCESS_INFORMATION *pi)
|
|
{
|
|
memset(&pi, 0, sizeof(pi));
|
|
}
|
|
|
|
static zend_result convert_command_to_use_shell(wchar_t **cmdw, size_t cmdw_len)
|
|
{
|
|
size_t len = sizeof(COMSPEC_NT) + sizeof(" /s /c ") + cmdw_len + 3;
|
|
wchar_t *cmdw_shell = (wchar_t *)malloc(len * sizeof(wchar_t));
|
|
|
|
if (cmdw_shell == NULL) {
|
|
php_error_docref(NULL, E_WARNING, "Command conversion failed");
|
|
return FAILURE;
|
|
}
|
|
|
|
if (_snwprintf(cmdw_shell, len, L"%hs /s /c \"%s\"", COMSPEC_NT, *cmdw) == -1) {
|
|
free(cmdw_shell);
|
|
php_error_docref(NULL, E_WARNING, "Command conversion failed");
|
|
return FAILURE;
|
|
}
|
|
|
|
free(*cmdw);
|
|
*cmdw = cmdw_shell;
|
|
|
|
return SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
/* Convert command parameter array passed as first argument to `proc_open` into command string */
|
|
static zend_string* get_command_from_array(HashTable *array, char ***argv, int num_elems)
|
|
{
|
|
zval *arg_zv;
|
|
zend_string *command = NULL;
|
|
int i = 0;
|
|
|
|
*argv = safe_emalloc(sizeof(char *), num_elems + 1, 0);
|
|
|
|
ZEND_HASH_FOREACH_VAL(array, arg_zv) {
|
|
zend_string *arg_str = get_valid_arg_string(arg_zv, i + 1);
|
|
if (!arg_str) {
|
|
/* Terminate with NULL so exit_fail code knows how many entries to free */
|
|
(*argv)[i] = NULL;
|
|
if (command != NULL) {
|
|
zend_string_release_ex(command, false);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (i == 0) {
|
|
command = zend_string_copy(arg_str);
|
|
}
|
|
|
|
(*argv)[i++] = estrdup(ZSTR_VAL(arg_str));
|
|
zend_string_release(arg_str);
|
|
} ZEND_HASH_FOREACH_END();
|
|
|
|
(*argv)[i] = NULL;
|
|
return command;
|
|
}
|
|
|
|
static descriptorspec_item* alloc_descriptor_array(HashTable *descriptorspec)
|
|
{
|
|
uint32_t ndescriptors = zend_hash_num_elements(descriptorspec);
|
|
return ecalloc(ndescriptors, sizeof(descriptorspec_item));
|
|
}
|
|
|
|
static zend_string* get_string_parameter(zval *array, int index, char *param_name)
|
|
{
|
|
zval *array_item;
|
|
if ((array_item = zend_hash_index_find(Z_ARRVAL_P(array), index)) == NULL) {
|
|
zend_value_error("Missing %s", param_name);
|
|
return NULL;
|
|
}
|
|
return zval_try_get_string(array_item);
|
|
}
|
|
|
|
static zend_result set_proc_descriptor_to_blackhole(descriptorspec_item *desc)
|
|
{
|
|
#ifdef PHP_WIN32
|
|
desc->childend = CreateFileA("nul", GENERIC_READ | GENERIC_WRITE,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
|
|
if (desc->childend == NULL) {
|
|
php_error_docref(NULL, E_WARNING, "Failed to open nul");
|
|
return FAILURE;
|
|
}
|
|
#else
|
|
desc->childend = open("/dev/null", O_RDWR);
|
|
if (desc->childend < 0) {
|
|
php_error_docref(NULL, E_WARNING, "Failed to open /dev/null: %s", strerror(errno));
|
|
return FAILURE;
|
|
}
|
|
#endif
|
|
return SUCCESS;
|
|
}
|
|
|
|
static zend_result set_proc_descriptor_to_pty(descriptorspec_item *desc, int *master_fd, int *slave_fd)
|
|
{
|
|
#ifdef HAVE_OPENPTY
|
|
/* All FDs set to PTY in the child process will go to the slave end of the same PTY.
|
|
* Likewise, all the corresponding entries in `$pipes` in the parent will all go to the master
|
|
* end of the same PTY.
|
|
* If this is the first descriptorspec set to 'pty', find an available PTY and get master and
|
|
* slave FDs. */
|
|
if (*master_fd == -1) {
|
|
if (openpty(master_fd, slave_fd, NULL, NULL, NULL)) {
|
|
php_error_docref(NULL, E_WARNING, "Could not open PTY (pseudoterminal): %s", strerror(errno));
|
|
return FAILURE;
|
|
}
|
|
}
|
|
|
|
desc->type = DESCRIPTOR_TYPE_PIPE;
|
|
desc->childend = dup(*slave_fd);
|
|
desc->parentend = dup(*master_fd);
|
|
desc->mode_flags = O_RDWR;
|
|
return SUCCESS;
|
|
#else
|
|
php_error_docref(NULL, E_WARNING, "PTY (pseudoterminal) not supported on this system");
|
|
return FAILURE;
|
|
#endif
|
|
}
|
|
|
|
/* Mark the descriptor close-on-exec, so it won't be inherited by children */
|
|
static php_file_descriptor_t make_descriptor_cloexec(php_file_descriptor_t fd)
|
|
{
|
|
#ifdef PHP_WIN32
|
|
return dup_handle(fd, FALSE, TRUE);
|
|
#else
|
|
#if defined(F_SETFD) && defined(FD_CLOEXEC)
|
|
fcntl(fd, F_SETFD, FD_CLOEXEC);
|
|
#endif
|
|
return fd;
|
|
#endif
|
|
}
|
|
|
|
static zend_result set_proc_descriptor_to_pipe(descriptorspec_item *desc, zend_string *zmode)
|
|
{
|
|
php_file_descriptor_t newpipe[2];
|
|
|
|
if (pipe(newpipe)) {
|
|
php_error_docref(NULL, E_WARNING, "Unable to create pipe %s", strerror(errno));
|
|
return FAILURE;
|
|
}
|
|
|
|
desc->type = DESCRIPTOR_TYPE_PIPE;
|
|
|
|
if (!zend_string_starts_with_literal(zmode, "w")) {
|
|
desc->parentend = newpipe[1];
|
|
desc->childend = newpipe[0];
|
|
desc->mode_flags = O_WRONLY;
|
|
} else {
|
|
desc->parentend = newpipe[0];
|
|
desc->childend = newpipe[1];
|
|
desc->mode_flags = O_RDONLY;
|
|
}
|
|
|
|
desc->parentend = make_descriptor_cloexec(desc->parentend);
|
|
|
|
#ifdef PHP_WIN32
|
|
if (ZSTR_LEN(zmode) >= 2 && ZSTR_VAL(zmode)[1] == 'b')
|
|
desc->mode_flags |= O_BINARY;
|
|
#endif
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
#define create_socketpair(socks) socketpair_win32(AF_INET, SOCK_STREAM, 0, (socks), 0)
|
|
#else
|
|
#define create_socketpair(socks) socketpair(AF_UNIX, SOCK_STREAM, 0, (socks))
|
|
#endif
|
|
|
|
static zend_result set_proc_descriptor_to_socket(descriptorspec_item *desc)
|
|
{
|
|
php_socket_t sock[2];
|
|
|
|
if (create_socketpair(sock)) {
|
|
zend_string *err = php_socket_error_str(php_socket_errno());
|
|
php_error_docref(NULL, E_WARNING, "Unable to create socket pair: %s", ZSTR_VAL(err));
|
|
zend_string_release(err);
|
|
return FAILURE;
|
|
}
|
|
|
|
desc->type = DESCRIPTOR_TYPE_SOCKET;
|
|
desc->parentend = make_descriptor_cloexec((php_file_descriptor_t) sock[0]);
|
|
|
|
/* Pass sock[1] to child because it will never use overlapped IO on Windows. */
|
|
desc->childend = (php_file_descriptor_t) sock[1];
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
static zend_result set_proc_descriptor_to_file(descriptorspec_item *desc, zend_string *file_path,
|
|
zend_string *file_mode)
|
|
{
|
|
php_socket_t fd;
|
|
|
|
/* try a wrapper */
|
|
php_stream *stream = php_stream_open_wrapper(ZSTR_VAL(file_path), ZSTR_VAL(file_mode),
|
|
REPORT_ERRORS|STREAM_WILL_CAST, NULL);
|
|
if (stream == NULL) {
|
|
return FAILURE;
|
|
}
|
|
|
|
/* force into an fd */
|
|
if (php_stream_cast(stream, PHP_STREAM_CAST_RELEASE|PHP_STREAM_AS_FD, (void **)&fd,
|
|
REPORT_ERRORS) == FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
desc->childend = dup_fd_as_handle((int)fd);
|
|
_close((int)fd);
|
|
|
|
/* Simulate the append mode by fseeking to the end of the file
|
|
* This introduces a potential race condition, but it is the best we can do */
|
|
if (strchr(ZSTR_VAL(file_mode), 'a')) {
|
|
SetFilePointer(desc->childend, 0, NULL, FILE_END);
|
|
}
|
|
#else
|
|
desc->childend = fd;
|
|
#endif
|
|
return SUCCESS;
|
|
}
|
|
|
|
static zend_result dup_proc_descriptor(php_file_descriptor_t from, php_file_descriptor_t *to,
|
|
zend_ulong nindex)
|
|
{
|
|
#ifdef PHP_WIN32
|
|
*to = dup_handle(from, TRUE, FALSE);
|
|
if (*to == NULL) {
|
|
php_error_docref(NULL, E_WARNING, "Failed to dup() for descriptor " ZEND_LONG_FMT, nindex);
|
|
return FAILURE;
|
|
}
|
|
#else
|
|
*to = dup(from);
|
|
if (*to < 0) {
|
|
php_error_docref(NULL, E_WARNING, "Failed to dup() for descriptor " ZEND_LONG_FMT ": %s",
|
|
nindex, strerror(errno));
|
|
return FAILURE;
|
|
}
|
|
#endif
|
|
return SUCCESS;
|
|
}
|
|
|
|
static zend_result redirect_proc_descriptor(descriptorspec_item *desc, int target,
|
|
descriptorspec_item *descriptors, int ndesc, int nindex)
|
|
{
|
|
php_file_descriptor_t redirect_to = PHP_INVALID_FD;
|
|
|
|
for (int i = 0; i < ndesc; i++) {
|
|
if (descriptors[i].index == target) {
|
|
redirect_to = descriptors[i].childend;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (redirect_to == PHP_INVALID_FD) { /* Didn't find the index we wanted */
|
|
if (target < 0 || target > 2) {
|
|
php_error_docref(NULL, E_WARNING, "Redirection target %d not found", target);
|
|
return FAILURE;
|
|
}
|
|
|
|
/* Support referring to a stdin/stdout/stderr pipe adopted from the parent,
|
|
* which happens whenever an explicit override is not provided. */
|
|
#ifndef PHP_WIN32
|
|
redirect_to = target;
|
|
#else
|
|
switch (target) {
|
|
case 0: redirect_to = GetStdHandle(STD_INPUT_HANDLE); break;
|
|
case 1: redirect_to = GetStdHandle(STD_OUTPUT_HANDLE); break;
|
|
case 2: redirect_to = GetStdHandle(STD_ERROR_HANDLE); break;
|
|
EMPTY_SWITCH_DEFAULT_CASE()
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return dup_proc_descriptor(redirect_to, &desc->childend, nindex);
|
|
}
|
|
|
|
/* Process one item from `$descriptorspec` argument to `proc_open` */
|
|
static zend_result set_proc_descriptor_from_array(zval *descitem, descriptorspec_item *descriptors,
|
|
int ndesc, int nindex, int *pty_master_fd, int *pty_slave_fd) {
|
|
zend_string *ztype = get_string_parameter(descitem, 0, "handle qualifier");
|
|
if (!ztype) {
|
|
return FAILURE;
|
|
}
|
|
|
|
zend_string *zmode = NULL, *zfile = NULL;
|
|
zend_result retval = FAILURE;
|
|
|
|
if (zend_string_equals_literal(ztype, "pipe")) {
|
|
/* Set descriptor to pipe */
|
|
zmode = get_string_parameter(descitem, 1, "mode parameter for 'pipe'");
|
|
if (zmode == NULL) {
|
|
goto finish;
|
|
}
|
|
retval = set_proc_descriptor_to_pipe(&descriptors[ndesc], zmode);
|
|
} else if (zend_string_equals_literal(ztype, "socket")) {
|
|
/* Set descriptor to socketpair */
|
|
retval = set_proc_descriptor_to_socket(&descriptors[ndesc]);
|
|
} else if (zend_string_equals(ztype, ZSTR_KNOWN(ZEND_STR_FILE))) {
|
|
/* Set descriptor to file */
|
|
if ((zfile = get_string_parameter(descitem, 1, "file name parameter for 'file'")) == NULL) {
|
|
goto finish;
|
|
}
|
|
if ((zmode = get_string_parameter(descitem, 2, "mode parameter for 'file'")) == NULL) {
|
|
goto finish;
|
|
}
|
|
retval = set_proc_descriptor_to_file(&descriptors[ndesc], zfile, zmode);
|
|
} else if (zend_string_equals_literal(ztype, "redirect")) {
|
|
/* Redirect descriptor to whatever another descriptor is set to */
|
|
zval *ztarget = zend_hash_index_find_deref(Z_ARRVAL_P(descitem), 1);
|
|
if (!ztarget) {
|
|
zend_value_error("Missing redirection target");
|
|
goto finish;
|
|
}
|
|
if (Z_TYPE_P(ztarget) != IS_LONG) {
|
|
zend_value_error("Redirection target must be of type int, %s given", zend_zval_value_name(ztarget));
|
|
goto finish;
|
|
}
|
|
|
|
retval = redirect_proc_descriptor(
|
|
&descriptors[ndesc], (int)Z_LVAL_P(ztarget), descriptors, ndesc, nindex);
|
|
} else if (zend_string_equals(ztype, ZSTR_KNOWN(ZEND_STR_NULL_LOWERCASE))) {
|
|
/* Set descriptor to blackhole (discard all data written) */
|
|
retval = set_proc_descriptor_to_blackhole(&descriptors[ndesc]);
|
|
} else if (zend_string_equals_literal(ztype, "pty")) {
|
|
/* Set descriptor to slave end of PTY */
|
|
retval = set_proc_descriptor_to_pty(&descriptors[ndesc], pty_master_fd, pty_slave_fd);
|
|
} else {
|
|
php_error_docref(NULL, E_WARNING, "%s is not a valid descriptor spec/mode", ZSTR_VAL(ztype));
|
|
goto finish;
|
|
}
|
|
|
|
finish:
|
|
if (zmode) zend_string_release(zmode);
|
|
if (zfile) zend_string_release(zfile);
|
|
zend_string_release(ztype);
|
|
return retval;
|
|
}
|
|
|
|
static zend_result set_proc_descriptor_from_resource(zval *resource, descriptorspec_item *desc, int nindex)
|
|
{
|
|
/* Should be a stream - try and dup the descriptor */
|
|
php_stream *stream = (php_stream*)zend_fetch_resource(Z_RES_P(resource), "stream",
|
|
php_file_le_stream());
|
|
if (stream == NULL) {
|
|
return FAILURE;
|
|
}
|
|
|
|
php_socket_t fd;
|
|
zend_result status = php_stream_cast(stream, PHP_STREAM_AS_FD, (void **)&fd, REPORT_ERRORS);
|
|
if (status == FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
php_file_descriptor_t fd_t = (php_file_descriptor_t)_get_osfhandle(fd);
|
|
#else
|
|
php_file_descriptor_t fd_t = fd;
|
|
#endif
|
|
return dup_proc_descriptor(fd_t, &desc->childend, nindex);
|
|
}
|
|
|
|
#ifndef PHP_WIN32
|
|
#if defined(USE_POSIX_SPAWN)
|
|
static zend_result close_parentends_of_pipes(posix_spawn_file_actions_t * actions, descriptorspec_item *descriptors, int ndesc)
|
|
{
|
|
int r;
|
|
for (int i = 0; i < ndesc; i++) {
|
|
if (descriptors[i].type != DESCRIPTOR_TYPE_STD) {
|
|
r = posix_spawn_file_actions_addclose(actions, descriptors[i].parentend);
|
|
if (r != 0) {
|
|
php_error_docref(NULL, E_WARNING, "Cannot close file descriptor %d: %s", descriptors[i].parentend, strerror(r));
|
|
return FAILURE;
|
|
}
|
|
}
|
|
if (descriptors[i].childend != descriptors[i].index) {
|
|
r = posix_spawn_file_actions_adddup2(actions, descriptors[i].childend, descriptors[i].index);
|
|
if (r != 0) {
|
|
php_error_docref(NULL, E_WARNING, "Unable to copy file descriptor %d (for pipe) into "
|
|
"file descriptor %d: %s", descriptors[i].childend, descriptors[i].index, strerror(r));
|
|
return FAILURE;
|
|
}
|
|
r = posix_spawn_file_actions_addclose(actions, descriptors[i].childend);
|
|
if (r != 0) {
|
|
php_error_docref(NULL, E_WARNING, "Cannot close file descriptor %d: %s", descriptors[i].childend, strerror(r));
|
|
return FAILURE;
|
|
}
|
|
}
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
#else
|
|
static zend_result close_parentends_of_pipes(descriptorspec_item *descriptors, int ndesc)
|
|
{
|
|
/* We are running in child process
|
|
* Close the 'parent end' of pipes which were opened before forking/spawning
|
|
* Also, dup() the child end of all pipes as necessary so they will use the FD
|
|
* number which the user requested */
|
|
for (int i = 0; i < ndesc; i++) {
|
|
if (descriptors[i].type != DESCRIPTOR_TYPE_STD) {
|
|
close(descriptors[i].parentend);
|
|
}
|
|
if (descriptors[i].childend != descriptors[i].index) {
|
|
if (dup2(descriptors[i].childend, descriptors[i].index) < 0) {
|
|
php_error_docref(NULL, E_WARNING, "Unable to copy file descriptor %d (for pipe) into " \
|
|
"file descriptor %d: %s", descriptors[i].childend, descriptors[i].index, strerror(errno));
|
|
return FAILURE;
|
|
}
|
|
close(descriptors[i].childend);
|
|
}
|
|
}
|
|
|
|
return SUCCESS;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
static void close_all_descriptors(descriptorspec_item *descriptors, int ndesc)
|
|
{
|
|
for (int i = 0; i < ndesc; i++) {
|
|
close_descriptor(descriptors[i].childend);
|
|
if (descriptors[i].parentend)
|
|
close_descriptor(descriptors[i].parentend);
|
|
}
|
|
}
|
|
|
|
static void efree_argv(char **argv)
|
|
{
|
|
if (argv) {
|
|
char **arg = argv;
|
|
while (*arg != NULL) {
|
|
efree(*arg);
|
|
arg++;
|
|
}
|
|
efree(argv);
|
|
}
|
|
}
|
|
|
|
/* {{{ Execute a command, with specified files used for input/output */
|
|
PHP_FUNCTION(proc_open)
|
|
{
|
|
zend_string *command_str;
|
|
HashTable *command_ht;
|
|
HashTable *descriptorspec; /* Mandatory argument */
|
|
zval *pipes; /* Mandatory argument */
|
|
char *cwd = NULL; /* Optional argument */
|
|
size_t cwd_len = 0; /* Optional argument */
|
|
zval *environment = NULL, *other_options = NULL; /* Optional arguments */
|
|
|
|
php_process_env env;
|
|
int ndesc = 0;
|
|
int i;
|
|
zval *descitem = NULL;
|
|
zend_string *str_index;
|
|
zend_ulong nindex;
|
|
descriptorspec_item *descriptors = NULL;
|
|
#ifdef PHP_WIN32
|
|
PROCESS_INFORMATION pi;
|
|
HANDLE childHandle;
|
|
STARTUPINFOW si;
|
|
BOOL newprocok;
|
|
DWORD dwCreateFlags = 0;
|
|
UINT old_error_mode;
|
|
char cur_cwd[MAXPATHLEN];
|
|
wchar_t *cmdw = NULL, *cwdw = NULL, *envpw = NULL;
|
|
size_t cmdw_len;
|
|
bool suppress_errors = 0;
|
|
bool bypass_shell = 0;
|
|
bool blocking_pipes = 0;
|
|
bool create_process_group = 0;
|
|
bool create_new_console = 0;
|
|
#else
|
|
char **argv = NULL;
|
|
#endif
|
|
int pty_master_fd = -1, pty_slave_fd = -1;
|
|
php_process_id_t child;
|
|
php_process_handle *proc;
|
|
|
|
ZEND_PARSE_PARAMETERS_START(3, 6)
|
|
Z_PARAM_ARRAY_HT_OR_STR(command_ht, command_str)
|
|
Z_PARAM_ARRAY_HT(descriptorspec)
|
|
Z_PARAM_ZVAL(pipes)
|
|
Z_PARAM_OPTIONAL
|
|
Z_PARAM_STRING_OR_NULL(cwd, cwd_len)
|
|
Z_PARAM_ARRAY_OR_NULL(environment)
|
|
Z_PARAM_ARRAY_OR_NULL(other_options)
|
|
ZEND_PARSE_PARAMETERS_END();
|
|
|
|
memset(&env, 0, sizeof(env));
|
|
|
|
if (command_ht) {
|
|
uint32_t num_elems = zend_hash_num_elements(command_ht);
|
|
if (num_elems == 0) {
|
|
zend_argument_value_error(1, "must have at least one element");
|
|
RETURN_THROWS();
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
/* Automatically bypass shell if command is given as an array */
|
|
bypass_shell = 1;
|
|
command_str = create_win_command_from_args(command_ht);
|
|
#else
|
|
command_str = get_command_from_array(command_ht, &argv, num_elems);
|
|
#endif
|
|
|
|
if (!command_str) {
|
|
#ifndef PHP_WIN32
|
|
efree_argv(argv);
|
|
#endif
|
|
RETURN_FALSE;
|
|
}
|
|
} else {
|
|
zend_string_addref(command_str);
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
if (other_options) {
|
|
suppress_errors = get_option(other_options, "suppress_errors", strlen("suppress_errors"));
|
|
/* TODO: Deprecate in favor of array command? */
|
|
bypass_shell = bypass_shell || get_option(other_options, "bypass_shell", strlen("bypass_shell"));
|
|
blocking_pipes = get_option(other_options, "blocking_pipes", strlen("blocking_pipes"));
|
|
create_process_group = get_option(other_options, "create_process_group", strlen("create_process_group"));
|
|
create_new_console = get_option(other_options, "create_new_console", strlen("create_new_console"));
|
|
}
|
|
#endif
|
|
|
|
if (environment) {
|
|
env = _php_array_to_envp(environment);
|
|
}
|
|
|
|
descriptors = alloc_descriptor_array(descriptorspec);
|
|
|
|
/* Walk the descriptor spec and set up files/pipes */
|
|
ZEND_HASH_FOREACH_KEY_VAL(descriptorspec, nindex, str_index, descitem) {
|
|
if (str_index) {
|
|
zend_argument_value_error(2, "must be an integer indexed array");
|
|
goto exit_fail;
|
|
}
|
|
|
|
descriptors[ndesc].index = (int)nindex;
|
|
|
|
ZVAL_DEREF(descitem);
|
|
if (Z_TYPE_P(descitem) == IS_RESOURCE) {
|
|
if (set_proc_descriptor_from_resource(descitem, &descriptors[ndesc], ndesc) == FAILURE) {
|
|
goto exit_fail;
|
|
}
|
|
} else if (Z_TYPE_P(descitem) == IS_ARRAY) {
|
|
if (set_proc_descriptor_from_array(descitem, descriptors, ndesc, (int)nindex,
|
|
&pty_master_fd, &pty_slave_fd) == FAILURE) {
|
|
goto exit_fail;
|
|
}
|
|
} else {
|
|
zend_argument_value_error(2, "must only contain arrays and streams");
|
|
goto exit_fail;
|
|
}
|
|
ndesc++;
|
|
} ZEND_HASH_FOREACH_END();
|
|
|
|
#ifdef PHP_WIN32
|
|
if (cwd == NULL) {
|
|
char *getcwd_result = VCWD_GETCWD(cur_cwd, MAXPATHLEN);
|
|
if (!getcwd_result) {
|
|
php_error_docref(NULL, E_WARNING, "Cannot get current directory");
|
|
goto exit_fail;
|
|
}
|
|
cwd = cur_cwd;
|
|
}
|
|
cwdw = php_win32_cp_any_to_w(cwd);
|
|
if (!cwdw) {
|
|
php_error_docref(NULL, E_WARNING, "CWD conversion failed");
|
|
goto exit_fail;
|
|
}
|
|
|
|
init_startup_info(&si, descriptors, ndesc);
|
|
init_process_info(&pi);
|
|
|
|
if (suppress_errors) {
|
|
old_error_mode = SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOGPFAULTERRORBOX);
|
|
}
|
|
|
|
dwCreateFlags = NORMAL_PRIORITY_CLASS;
|
|
if(strcmp(sapi_module.name, "cli") != 0) {
|
|
dwCreateFlags |= CREATE_NO_WINDOW;
|
|
}
|
|
if (create_process_group) {
|
|
dwCreateFlags |= CREATE_NEW_PROCESS_GROUP;
|
|
}
|
|
if (create_new_console) {
|
|
dwCreateFlags |= CREATE_NEW_CONSOLE;
|
|
}
|
|
envpw = php_win32_cp_env_any_to_w(env.envp);
|
|
if (envpw) {
|
|
dwCreateFlags |= CREATE_UNICODE_ENVIRONMENT;
|
|
} else {
|
|
if (env.envp) {
|
|
php_error_docref(NULL, E_WARNING, "ENV conversion failed");
|
|
goto exit_fail;
|
|
}
|
|
}
|
|
|
|
cmdw = php_win32_cp_conv_any_to_w(ZSTR_VAL(command_str), ZSTR_LEN(command_str), &cmdw_len);
|
|
if (!cmdw) {
|
|
php_error_docref(NULL, E_WARNING, "Command conversion failed");
|
|
goto exit_fail;
|
|
}
|
|
|
|
if (!bypass_shell) {
|
|
if (convert_command_to_use_shell(&cmdw, cmdw_len) == FAILURE) {
|
|
goto exit_fail;
|
|
}
|
|
}
|
|
newprocok = CreateProcessW(NULL, cmdw, &php_proc_open_security,
|
|
&php_proc_open_security, TRUE, dwCreateFlags, envpw, cwdw, &si, &pi);
|
|
|
|
if (suppress_errors) {
|
|
SetErrorMode(old_error_mode);
|
|
}
|
|
|
|
if (newprocok == FALSE) {
|
|
DWORD dw = GetLastError();
|
|
close_all_descriptors(descriptors, ndesc);
|
|
char *msg = php_win32_error_to_msg(dw);
|
|
php_error_docref(NULL, E_WARNING, "CreateProcess failed: %s", msg);
|
|
php_win32_error_msg_free(msg);
|
|
goto exit_fail;
|
|
}
|
|
|
|
childHandle = pi.hProcess;
|
|
child = pi.dwProcessId;
|
|
CloseHandle(pi.hThread);
|
|
#elif defined(USE_POSIX_SPAWN)
|
|
posix_spawn_file_actions_t factions;
|
|
int r;
|
|
posix_spawn_file_actions_init(&factions);
|
|
|
|
if (close_parentends_of_pipes(&factions, descriptors, ndesc) == FAILURE) {
|
|
posix_spawn_file_actions_destroy(&factions);
|
|
close_all_descriptors(descriptors, ndesc);
|
|
goto exit_fail;
|
|
}
|
|
|
|
if (cwd) {
|
|
r = posix_spawn_file_actions_addchdir_np(&factions, cwd);
|
|
if (r != 0) {
|
|
php_error_docref(NULL, E_WARNING, "posix_spawn_file_actions_addchdir_np() failed: %s", strerror(r));
|
|
}
|
|
}
|
|
|
|
if (argv) {
|
|
r = posix_spawnp(&child, ZSTR_VAL(command_str), &factions, NULL, argv, (env.envarray ? env.envarray : environ));
|
|
} else {
|
|
r = posix_spawn(&child, "/bin/sh" , &factions, NULL,
|
|
(char * const[]) {"sh", "-c", ZSTR_VAL(command_str), NULL},
|
|
env.envarray ? env.envarray : environ);
|
|
}
|
|
posix_spawn_file_actions_destroy(&factions);
|
|
if (r != 0) {
|
|
close_all_descriptors(descriptors, ndesc);
|
|
php_error_docref(NULL, E_WARNING, "posix_spawn() failed: %s", strerror(r));
|
|
goto exit_fail;
|
|
}
|
|
#elif defined(HAVE_FORK)
|
|
/* the Unix way */
|
|
child = fork();
|
|
|
|
if (child == 0) {
|
|
/* This is the child process */
|
|
|
|
if (close_parentends_of_pipes(descriptors, ndesc) == FAILURE) {
|
|
/* We are already in child process and can't do anything to make
|
|
* `proc_open` return an error in the parent
|
|
* All we can do is exit with a non-zero (error) exit code */
|
|
_exit(127);
|
|
}
|
|
|
|
if (cwd) {
|
|
php_ignore_value(chdir(cwd));
|
|
}
|
|
|
|
if (argv) {
|
|
/* execvpe() is non-portable, use environ instead. */
|
|
if (env.envarray) {
|
|
environ = env.envarray;
|
|
}
|
|
execvp(ZSTR_VAL(command_str), argv);
|
|
} else {
|
|
if (env.envarray) {
|
|
execle("/bin/sh", "sh", "-c", ZSTR_VAL(command_str), NULL, env.envarray);
|
|
} else {
|
|
execl("/bin/sh", "sh", "-c", ZSTR_VAL(command_str), NULL);
|
|
}
|
|
}
|
|
|
|
/* If execvp/execle/execl are successful, we will never reach here
|
|
* Display error and exit with non-zero (error) status code */
|
|
php_error_docref(NULL, E_WARNING, "Exec failed: %s", strerror(errno));
|
|
_exit(127);
|
|
} else if (child < 0) {
|
|
/* Failed to fork() */
|
|
close_all_descriptors(descriptors, ndesc);
|
|
php_error_docref(NULL, E_WARNING, "Fork failed: %s", strerror(errno));
|
|
goto exit_fail;
|
|
}
|
|
#else
|
|
# error You lose (configure should not have let you get here)
|
|
#endif
|
|
|
|
/* We forked/spawned and this is the parent */
|
|
|
|
pipes = zend_try_array_init(pipes);
|
|
if (!pipes) {
|
|
goto exit_fail;
|
|
}
|
|
|
|
proc = (php_process_handle*) emalloc(sizeof(php_process_handle));
|
|
proc->command = zend_string_copy(command_str);
|
|
proc->pipes = emalloc(sizeof(zend_resource *) * ndesc);
|
|
proc->npipes = ndesc;
|
|
proc->child = child;
|
|
#ifdef PHP_WIN32
|
|
proc->childHandle = childHandle;
|
|
#endif
|
|
proc->env = env;
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
proc->has_cached_exit_wait_status = false;
|
|
#endif
|
|
|
|
/* Clean up all the child ends and then open streams on the parent
|
|
* ends, where appropriate */
|
|
for (i = 0; i < ndesc; i++) {
|
|
php_stream *stream = NULL;
|
|
|
|
close_descriptor(descriptors[i].childend);
|
|
|
|
if (descriptors[i].type == DESCRIPTOR_TYPE_PIPE) {
|
|
char *mode_string = NULL;
|
|
|
|
switch (descriptors[i].mode_flags) {
|
|
#ifdef PHP_WIN32
|
|
case O_WRONLY|O_BINARY:
|
|
mode_string = "wb";
|
|
break;
|
|
case O_RDONLY|O_BINARY:
|
|
mode_string = "rb";
|
|
break;
|
|
#endif
|
|
case O_WRONLY:
|
|
mode_string = "w";
|
|
break;
|
|
case O_RDONLY:
|
|
mode_string = "r";
|
|
break;
|
|
case O_RDWR:
|
|
mode_string = "r+";
|
|
break;
|
|
}
|
|
|
|
#ifdef PHP_WIN32
|
|
stream = php_stream_fopen_from_fd(_open_osfhandle((intptr_t)descriptors[i].parentend,
|
|
descriptors[i].mode_flags), mode_string, NULL);
|
|
php_stream_set_option(stream, PHP_STREAM_OPTION_PIPE_BLOCKING, blocking_pipes, NULL);
|
|
#else
|
|
stream = php_stream_fopen_from_fd(descriptors[i].parentend, mode_string, NULL);
|
|
#endif
|
|
} else if (descriptors[i].type == DESCRIPTOR_TYPE_SOCKET) {
|
|
stream = php_stream_sock_open_from_socket((php_socket_t) descriptors[i].parentend, NULL);
|
|
} else {
|
|
proc->pipes[i] = NULL;
|
|
}
|
|
|
|
if (stream) {
|
|
zval retfp;
|
|
|
|
/* nasty hack; don't copy it */
|
|
stream->flags |= PHP_STREAM_FLAG_NO_SEEK;
|
|
|
|
php_stream_to_zval(stream, &retfp);
|
|
add_index_zval(pipes, descriptors[i].index, &retfp);
|
|
|
|
proc->pipes[i] = Z_RES(retfp);
|
|
Z_ADDREF(retfp);
|
|
}
|
|
}
|
|
|
|
if (1) {
|
|
RETVAL_RES(zend_register_resource(proc, le_proc_open));
|
|
} else {
|
|
exit_fail:
|
|
_php_free_envp(env);
|
|
RETVAL_FALSE;
|
|
}
|
|
|
|
zend_string_release_ex(command_str, false);
|
|
#ifdef PHP_WIN32
|
|
free(cwdw);
|
|
free(cmdw);
|
|
free(envpw);
|
|
#else
|
|
efree_argv(argv);
|
|
#endif
|
|
#ifdef HAVE_OPENPTY
|
|
if (pty_master_fd != -1) {
|
|
close(pty_master_fd);
|
|
}
|
|
if (pty_slave_fd != -1) {
|
|
close(pty_slave_fd);
|
|
}
|
|
#endif
|
|
if (descriptors) {
|
|
efree(descriptors);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
#endif /* PHP_CAN_SUPPORT_PROC_OPEN */
|