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posix.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. |
+----------------------------------------------------------------------+
| Author: Kristian Koehntopp <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include <unistd.h>
#include "ext/standard/info.h"
#include "ext/standard/php_string.h"
#include "php_posix.h"
#ifdef HAVE_POSIX
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <sys/resource.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <sys/times.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#ifdef HAVE_SYS_MKDEV_H
# include <sys/mkdev.h>
#endif
#ifdef HAVE_SYS_SYSMACROS_H
# include <sys/sysmacros.h>
#endif
#include "posix_arginfo.h"
ZEND_DECLARE_MODULE_GLOBALS(posix)
static PHP_MINFO_FUNCTION(posix);
/* {{{ PHP_MINFO_FUNCTION */
static PHP_MINFO_FUNCTION(posix)
{
php_info_print_table_start();
php_info_print_table_row(2, "POSIX support", "enabled");
php_info_print_table_end();
}
/* }}} */
static PHP_GINIT_FUNCTION(posix) /* {{{ */
{
#if defined(COMPILE_DL_POSIX) && defined(ZTS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
posix_globals->last_error = 0;
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION(posix) */
static PHP_MINIT_FUNCTION(posix)
{
register_posix_symbols(module_number);
return SUCCESS;
}
/* }}} */
/* {{{ posix_module_entry */
zend_module_entry posix_module_entry = {
STANDARD_MODULE_HEADER,
"posix",
ext_functions,
PHP_MINIT(posix),
NULL,
NULL,
NULL,
PHP_MINFO(posix),
PHP_POSIX_VERSION,
PHP_MODULE_GLOBALS(posix),
PHP_GINIT(posix),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_POSIX
#ifdef ZTS
ZEND_TSRMLS_CACHE_DEFINE()
#endif
ZEND_GET_MODULE(posix)
#endif
#define PHP_POSIX_RETURN_LONG_FUNC(func_name) \
ZEND_PARSE_PARAMETERS_NONE(); \
RETURN_LONG(func_name());
#define PHP_POSIX_SINGLE_ARG_FUNC(func_name) \
zend_long val; \
ZEND_PARSE_PARAMETERS_START(1, 1) \
Z_PARAM_LONG(val) \
ZEND_PARSE_PARAMETERS_END(); \
if (func_name(val) < 0) { \
POSIX_G(last_error) = errno; \
RETURN_FALSE; \
} \
RETURN_TRUE;
/* {{{ Send a signal to a process (POSIX.1, 3.3.2) */
PHP_FUNCTION(posix_kill)
{
zend_long pid, sig;
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_LONG(pid)
Z_PARAM_LONG(sig)
ZEND_PARSE_PARAMETERS_END();
if (kill(pid, sig) < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ Get the current process id (POSIX.1, 4.1.1) */
PHP_FUNCTION(posix_getpid)
{
PHP_POSIX_RETURN_LONG_FUNC(getpid);
}
/* }}} */
/* {{{ Get the parent process id (POSIX.1, 4.1.1) */
PHP_FUNCTION(posix_getppid)
{
PHP_POSIX_RETURN_LONG_FUNC(getppid);
}
/* }}} */
/* {{{ Get the current user id (POSIX.1, 4.2.1) */
PHP_FUNCTION(posix_getuid)
{
PHP_POSIX_RETURN_LONG_FUNC(getuid);
}
/* }}} */
/* {{{ Get the current group id (POSIX.1, 4.2.1) */
PHP_FUNCTION(posix_getgid)
{
PHP_POSIX_RETURN_LONG_FUNC(getgid);
}
/* }}} */
/* {{{ Get the current effective user id (POSIX.1, 4.2.1) */
PHP_FUNCTION(posix_geteuid)
{
PHP_POSIX_RETURN_LONG_FUNC(geteuid);
}
/* }}} */
/* {{{ Get the current effective group id (POSIX.1, 4.2.1) */
PHP_FUNCTION(posix_getegid)
{
PHP_POSIX_RETURN_LONG_FUNC(getegid);
}
/* }}} */
/* {{{ Set user id (POSIX.1, 4.2.2) */
PHP_FUNCTION(posix_setuid)
{
PHP_POSIX_SINGLE_ARG_FUNC(setuid);
}
/* }}} */
/* {{{ Set group id (POSIX.1, 4.2.2) */
PHP_FUNCTION(posix_setgid)
{
PHP_POSIX_SINGLE_ARG_FUNC(setgid);
}
/* }}} */
/* {{{ Set effective user id */
#ifdef HAVE_SETEUID
PHP_FUNCTION(posix_seteuid)
{
PHP_POSIX_SINGLE_ARG_FUNC(seteuid);
}
#endif
/* }}} */
/* {{{ Set effective group id */
#ifdef HAVE_SETEGID
PHP_FUNCTION(posix_setegid)
{
PHP_POSIX_SINGLE_ARG_FUNC(setegid);
}
#endif
/* }}} */
/* {{{ Get supplementary group id's (POSIX.1, 4.2.3) */
#ifdef HAVE_GETGROUPS
PHP_FUNCTION(posix_getgroups)
{
gid_t *gidlist;
int result;
int i;
ZEND_PARSE_PARAMETERS_NONE();
/* MacOS may return more than NGROUPS_MAX groups.
* Fetch the actual number of groups and create an appropriate allocation. */
if ((result = getgroups(0, NULL)) < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
gidlist = emalloc(sizeof(gid_t) * result);
if ((result = getgroups(result, gidlist)) < 0) {
POSIX_G(last_error) = errno;
efree(gidlist);
RETURN_FALSE;
}
array_init(return_value);
for (i=0; i<result; i++) {
add_next_index_long(return_value, gidlist[i]);
}
efree(gidlist);
}
#endif
/* }}} */
/* {{{ Get user name (POSIX.1, 4.2.4) */
#ifdef HAVE_GETLOGIN
PHP_FUNCTION(posix_getlogin)
{
char *p;
ZEND_PARSE_PARAMETERS_NONE();
if (NULL == (p = getlogin())) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_STRING(p);
}
#endif
/* }}} */
/* {{{ Get current process group id (POSIX.1, 4.3.1) */
PHP_FUNCTION(posix_getpgrp)
{
PHP_POSIX_RETURN_LONG_FUNC(getpgrp);
}
/* }}} */
/* {{{ Create session and set process group id (POSIX.1, 4.3.2) */
#ifdef HAVE_SETSID
PHP_FUNCTION(posix_setsid)
{
PHP_POSIX_RETURN_LONG_FUNC(setsid);
}
#endif
/* }}} */
/* {{{ Set process group id for job control (POSIX.1, 4.3.3) */
PHP_FUNCTION(posix_setpgid)
{
zend_long pid, pgid;
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_LONG(pid)
Z_PARAM_LONG(pgid)
ZEND_PARSE_PARAMETERS_END();
if (setpgid(pid, pgid) < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ Get the process group id of the specified process (This is not a POSIX function, but a SVR4ism, so we compile conditionally) */
#ifdef HAVE_GETPGID
PHP_FUNCTION(posix_getpgid)
{
zend_long val;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(val)
ZEND_PARSE_PARAMETERS_END();
if ((val = getpgid(val)) < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_LONG(val);
}
#endif
/* }}} */
/* {{{ Get process group id of session leader (This is not a POSIX function, but a SVR4ism, so be compile conditionally) */
#ifdef HAVE_GETSID
PHP_FUNCTION(posix_getsid)
{
zend_long val;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(val)
ZEND_PARSE_PARAMETERS_END();
if ((val = getsid(val)) < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_LONG(val);
}
#endif
/* }}} */
/* {{{ Get system name (POSIX.1, 4.4.1) */
PHP_FUNCTION(posix_uname)
{
struct utsname u;
ZEND_PARSE_PARAMETERS_NONE();
if (uname(&u) < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
array_init(return_value);
add_assoc_string(return_value, "sysname", u.sysname);
add_assoc_string(return_value, "nodename", u.nodename);
add_assoc_string(return_value, "release", u.release);
add_assoc_string(return_value, "version", u.version);
add_assoc_string(return_value, "machine", u.machine);
#if defined(_GNU_SOURCE) && !defined(DARWIN) && defined(HAVE_UTSNAME_DOMAINNAME)
add_assoc_string(return_value, "domainname", u.domainname);
#endif
}
/* }}} */
/* POSIX.1, 4.5.1 time() - Get System Time
already covered by PHP
*/
/* {{{ Get process times (POSIX.1, 4.5.2) */
PHP_FUNCTION(posix_times)
{
struct tms t;
clock_t ticks;
ZEND_PARSE_PARAMETERS_NONE();
if ((ticks = times(&t)) == -1) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
array_init(return_value);
add_assoc_long(return_value, "ticks", ticks); /* clock ticks */
add_assoc_long(return_value, "utime", t.tms_utime); /* user time */
add_assoc_long(return_value, "stime", t.tms_stime); /* system time */
add_assoc_long(return_value, "cutime", t.tms_cutime); /* user time of children */
add_assoc_long(return_value, "cstime", t.tms_cstime); /* system time of children */
}
/* }}} */
/* POSIX.1, 4.6.1 getenv() - Environment Access
already covered by PHP
*/
/* {{{ Generate terminal path name (POSIX.1, 4.7.1) */
#ifdef HAVE_CTERMID
PHP_FUNCTION(posix_ctermid)
{
char buffer[L_ctermid];
ZEND_PARSE_PARAMETERS_NONE();
if (NULL == ctermid(buffer)) {
/* Found no documentation how the defined behaviour is when this
* function fails
*/
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_STRING(buffer);
}
#endif
/* }}} */
/* Checks if the provides resource is a stream and if it provides a file descriptor */
static int php_posix_stream_get_fd(zval *zfp, zend_long *fd) /* {{{ */
{
php_stream *stream;
php_stream_from_zval_no_verify(stream, zfp);
if (stream == NULL) {
return 0;
}
/* get the fd.
* NB: Most other code will NOT use the PHP_STREAM_CAST_INTERNAL flag when casting.
* It is only used here so that the buffered data warning is not displayed.
*/
if (php_stream_can_cast(stream, PHP_STREAM_AS_FD_FOR_SELECT | PHP_STREAM_CAST_INTERNAL) == SUCCESS) {
php_stream_cast(stream, PHP_STREAM_AS_FD_FOR_SELECT | PHP_STREAM_CAST_INTERNAL, (void*)fd, 0);
} else if (php_stream_can_cast(stream, PHP_STREAM_AS_FD | PHP_STREAM_CAST_INTERNAL) == SUCCESS) {
php_stream_cast(stream, PHP_STREAM_AS_FD | PHP_STREAM_CAST_INTERNAL, (void*)fd, 0);
} else {
php_error_docref(NULL, E_WARNING, "Could not use stream of type '%s'",
stream->ops->label);
return 0;
}
return 1;
}
/* }}} */
/* {{{ Determine terminal device name (POSIX.1, 4.7.2) */
PHP_FUNCTION(posix_ttyname)
{
zval *z_fd;
char *p;
zend_long fd = 0;
#if defined(ZTS) && defined(HAVE_TTYNAME_R) && defined(_SC_TTY_NAME_MAX)
zend_long buflen;
#endif
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_ZVAL(z_fd)
ZEND_PARSE_PARAMETERS_END();
if (Z_TYPE_P(z_fd) == IS_RESOURCE) {
if (!php_posix_stream_get_fd(z_fd, &fd)) {
RETURN_FALSE;
}
} else {
if (!zend_parse_arg_long(z_fd, &fd, /* is_null */ NULL, /* check_null */ false, /* arg_num */ 1)) {
php_error_docref(NULL, E_WARNING, "Argument #1 ($file_descriptor) must be of type int|resource, %s given",
zend_zval_value_name(z_fd));
fd = zval_get_long(z_fd);
}
/* fd must fit in an int and be positive */
if (fd < 0 || fd > INT_MAX) {
php_error_docref(NULL, E_WARNING, "Argument #1 ($file_descriptor) must be between 0 and %d", INT_MAX);
RETURN_FALSE;
}
}
#if defined(ZTS) && defined(HAVE_TTYNAME_R) && defined(_SC_TTY_NAME_MAX)
buflen = sysconf(_SC_TTY_NAME_MAX);
if (buflen < 1) {
RETURN_FALSE;
}
p = emalloc(buflen);
if (ttyname_r(fd, p, buflen)) {
POSIX_G(last_error) = errno;
efree(p);
RETURN_FALSE;
}
RETVAL_STRING(p);
efree(p);
#else
if (NULL == (p = ttyname(fd))) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_STRING(p);
#endif
}
/* }}} */
/* {{{ Determine if filedesc is a tty (POSIX.1, 4.7.1) */
PHP_FUNCTION(posix_isatty)
{
zval *z_fd;
zend_long fd = 0;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_ZVAL(z_fd)
ZEND_PARSE_PARAMETERS_END();
if (Z_TYPE_P(z_fd) == IS_RESOURCE) {
if (!php_posix_stream_get_fd(z_fd, &fd)) {
RETURN_FALSE;
}
} else {
if (!zend_parse_arg_long(z_fd, &fd, /* is_null */ NULL, /* check_null */ false, /* arg_num */ 1)) {
php_error_docref(NULL, E_WARNING, "Argument #1 ($file_descriptor) must be of type int|resource, %s given",
zend_zval_value_name(z_fd));
RETURN_FALSE;
}
}
/* A valid file descriptor must fit in an int and be positive */
if (fd < 0 || fd > INT_MAX) {
RETURN_FALSE;
}
if (isatty(fd)) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/*
POSIX.1, 4.8.1 sysconf() - TODO
POSIX.1, 5.7.1 pathconf(), fpathconf() - TODO
POSIX.1, 5.1.2 opendir(), readdir(), rewinddir(), closedir()
POSIX.1, 5.2.1 chdir()
already supported by PHP
*/
/* {{{ Get working directory pathname (POSIX.1, 5.2.2) */
PHP_FUNCTION(posix_getcwd)
{
char buffer[MAXPATHLEN];
char *p;
ZEND_PARSE_PARAMETERS_NONE();
p = VCWD_GETCWD(buffer, MAXPATHLEN);
if (!p) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_STRING(buffer);
}
/* }}} */
/*
POSIX.1, 5.3.x open(), creat(), umask()
POSIX.1, 5.4.1 link()
already supported by PHP.
*/
/* {{{ Make a FIFO special file (POSIX.1, 5.4.2) */
#ifdef HAVE_MKFIFO
PHP_FUNCTION(posix_mkfifo)
{
zend_string *path;
zend_long mode;
int result;
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_PATH_STR(path)
Z_PARAM_LONG(mode)
ZEND_PARSE_PARAMETERS_END();
if (php_check_open_basedir_ex(ZSTR_VAL(path), 0)) {
RETURN_FALSE;
}
result = mkfifo(ZSTR_VAL(path), mode);
if (result < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_TRUE;
}
#endif
/* }}} */
/* {{{ Make a special or ordinary file (POSIX.1) */
#ifdef HAVE_MKNOD
PHP_FUNCTION(posix_mknod)
{
zend_string *path;
zend_long mode;
zend_long major = 0, minor = 0;
int result;
dev_t php_dev = 0;
ZEND_PARSE_PARAMETERS_START(2, 4)
Z_PARAM_PATH_STR(path)
Z_PARAM_LONG(mode)
Z_PARAM_OPTIONAL
Z_PARAM_LONG(major)
Z_PARAM_LONG(minor)
ZEND_PARSE_PARAMETERS_END();
if (php_check_open_basedir_ex(ZSTR_VAL(path), 0)) {
RETURN_FALSE;
}
if ((mode & S_IFCHR) || (mode & S_IFBLK)) {
if (major == 0) {
zend_argument_value_error(3, "cannot be 0 for the POSIX_S_IFCHR and POSIX_S_IFBLK modes");
RETURN_THROWS();
} else {
#if defined(HAVE_MAKEDEV) || defined(makedev)
php_dev = makedev(major, minor);
#else
php_error_docref(NULL, E_WARNING, "Cannot create a block or character device, creating a normal file instead");
#endif
}
}
result = mknod(ZSTR_VAL(path), mode, php_dev);
if (result < 0) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_TRUE;
}
#endif
/* }}} */
/* Takes a pointer to posix group and a pointer to an already initialized ZVAL
* array container and fills the array with the posix group member data. */
int php_posix_group_to_array(struct group *g, zval *array_group) /* {{{ */
{
zval array_members;
int count;
if (NULL == g)
return 0;
if (array_group == NULL || Z_TYPE_P(array_group) != IS_ARRAY)
return 0;
array_init(&array_members);
add_assoc_string(array_group, "name", g->gr_name);
if (g->gr_passwd) {
add_assoc_string(array_group, "passwd", g->gr_passwd);
} else {
add_assoc_null(array_group, "passwd");
}
for (count = 0;; count++) {
/* gr_mem entries may be misaligned on macos. */
char *gr_mem;
memcpy(&gr_mem, &g->gr_mem[count], sizeof(char *));
if (!gr_mem) {
break;
}
add_next_index_string(&array_members, gr_mem);
}
zend_hash_str_update(Z_ARRVAL_P(array_group), "members", sizeof("members")-1, &array_members);
add_assoc_long(array_group, "gid", g->gr_gid);
return 1;
}
/* }}} */
/*
POSIX.1, 5.5.1 unlink()
POSIX.1, 5.5.2 rmdir()
POSIX.1, 5.5.3 rename()
POSIX.1, 5.6.x stat(), chmod(), utime() already supported by PHP.
*/
/* {{{ Determine accessibility of a file (POSIX.1 5.6.3) */
PHP_FUNCTION(posix_access)
{
zend_long mode = 0;
size_t filename_len, ret;
char *filename, *path;
ZEND_PARSE_PARAMETERS_START(1, 2)
Z_PARAM_PATH(filename, filename_len)
Z_PARAM_OPTIONAL
Z_PARAM_LONG(mode)
ZEND_PARSE_PARAMETERS_END();
path = expand_filepath(filename, NULL);
if (!path) {
POSIX_G(last_error) = EIO;
RETURN_FALSE;
}
if (php_check_open_basedir_ex(path, 0)) {
efree(path);
POSIX_G(last_error) = EPERM;
RETURN_FALSE;
}
ret = access(path, mode);
efree(path);
if (ret) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_TRUE;
}
#ifdef HAVE_EACCESS
PHP_FUNCTION(posix_eaccess)
{
zend_long mode = 0;
size_t filename_len, ret;
char *filename, *path;
ZEND_PARSE_PARAMETERS_START(1, 2)
Z_PARAM_PATH(filename, filename_len)
Z_PARAM_OPTIONAL
Z_PARAM_LONG(mode)
ZEND_PARSE_PARAMETERS_END();
path = expand_filepath(filename, NULL);
if (!path) {
zend_argument_value_error(1, "cannot be empty");
RETURN_THROWS();
}
if (php_check_open_basedir_ex(path, 0)) {
efree(path);
POSIX_G(last_error) = EPERM;
RETURN_FALSE;
}
ret = eaccess(path, mode);
efree(path);
if (ret) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
RETURN_TRUE;
}
#endif
/* }}} */
/*
POSIX.1, 6.x most I/O functions already supported by PHP.
POSIX.1, 7.x tty functions, TODO
POSIX.1, 8.x interactions with other C language functions
POSIX.1, 9.x system database access
*/
/* {{{ Group database access (POSIX.1, 9.2.1) */
PHP_FUNCTION(posix_getgrnam)
{
char *name;
struct group *g;
size_t name_len;
#if defined(ZTS) && defined(HAVE_GETGRNAM_R) && defined(_SC_GETGR_R_SIZE_MAX)
struct group gbuf;
long buflen;
char *buf;
#endif
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STRING(name, name_len)
ZEND_PARSE_PARAMETERS_END();
#if defined(ZTS) && defined(HAVE_GETGRNAM_R) && defined(_SC_GETGR_R_SIZE_MAX)
buflen = sysconf(_SC_GETGR_R_SIZE_MAX);
if (buflen < 1) {
RETURN_FALSE;
}
buf = emalloc(buflen);
try_again:
g = &gbuf;
if (getgrnam_r(name, g, buf, buflen, &g) || g == NULL) {
if (errno == ERANGE) {
buflen *= 2;
buf = erealloc(buf, buflen);
goto try_again;
}
POSIX_G(last_error) = errno;
efree(buf);
RETURN_FALSE;
}
#else
if (NULL == (g = getgrnam(name))) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
#endif
array_init(return_value);
if (!php_posix_group_to_array(g, return_value)) {
zend_array_destroy(Z_ARR_P(return_value));
php_error_docref(NULL, E_WARNING, "Unable to convert posix group to array");
RETVAL_FALSE;
}
#if defined(ZTS) && defined(HAVE_GETGRNAM_R) && defined(_SC_GETGR_R_SIZE_MAX)
efree(buf);
#endif
}
/* }}} */
/* {{{ Group database access (POSIX.1, 9.2.1) */
PHP_FUNCTION(posix_getgrgid)
{
zend_long gid;
#if defined(ZTS) && defined(HAVE_GETGRGID_R) && defined(_SC_GETGR_R_SIZE_MAX)
int ret;
struct group _g;
struct group *retgrptr = NULL;
long grbuflen;
char *grbuf;
#endif
struct group *g;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(gid)
ZEND_PARSE_PARAMETERS_END();
#if defined(ZTS) && defined(HAVE_GETGRGID_R) && defined(_SC_GETGR_R_SIZE_MAX)
grbuflen = sysconf(_SC_GETGR_R_SIZE_MAX);
if (grbuflen < 1) {
RETURN_FALSE;
}
grbuf = emalloc(grbuflen);
try_again:
ret = getgrgid_r(gid, &_g, grbuf, grbuflen, &retgrptr);
if (ret || retgrptr == NULL) {
if (errno == ERANGE) {
grbuflen *= 2;
grbuf = erealloc(grbuf, grbuflen);
goto try_again;
}
POSIX_G(last_error) = ret;
efree(grbuf);
RETURN_FALSE;
}
g = &_g;
#else
if (NULL == (g = getgrgid(gid))) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
#endif
array_init(return_value);
if (!php_posix_group_to_array(g, return_value)) {
zend_array_destroy(Z_ARR_P(return_value));
php_error_docref(NULL, E_WARNING, "Unable to convert posix group struct to array");
RETVAL_FALSE;
}
#if defined(ZTS) && defined(HAVE_GETGRGID_R) && defined(_SC_GETGR_R_SIZE_MAX)
efree(grbuf);
#endif
}
/* }}} */
int php_posix_passwd_to_array(struct passwd *pw, zval *return_value) /* {{{ */
{
if (NULL == pw)
return 0;
if (NULL == return_value || Z_TYPE_P(return_value) != IS_ARRAY)
return 0;
add_assoc_string(return_value, "name", pw->pw_name);
add_assoc_string(return_value, "passwd", pw->pw_passwd);
add_assoc_long (return_value, "uid", pw->pw_uid);
add_assoc_long (return_value, "gid", pw->pw_gid);
add_assoc_string(return_value, "gecos", pw->pw_gecos);
add_assoc_string(return_value, "dir", pw->pw_dir);
add_assoc_string(return_value, "shell", pw->pw_shell);
return 1;
}
/* }}} */
/* {{{ User database access (POSIX.1, 9.2.2) */
PHP_FUNCTION(posix_getpwnam)
{
struct passwd *pw;
char *name;
size_t name_len;
#if defined(ZTS) && defined(_SC_GETPW_R_SIZE_MAX) && defined(HAVE_GETPWNAM_R)
struct passwd pwbuf;
long buflen;
char *buf;
#endif
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STRING(name, name_len)
ZEND_PARSE_PARAMETERS_END();
#if defined(ZTS) && defined(_SC_GETPW_R_SIZE_MAX) && defined(HAVE_GETPWNAM_R)
buflen = sysconf(_SC_GETPW_R_SIZE_MAX);
if (buflen < 1) {
RETURN_FALSE;
}
buf = emalloc(buflen);
pw = &pwbuf;
try_again:
if (getpwnam_r(name, pw, buf, buflen, &pw) || pw == NULL) {
if (errno == ERANGE) {
buflen *= 2;
buf = erealloc(buf, buflen);
goto try_again;
}
efree(buf);
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
#else
if (NULL == (pw = getpwnam(name))) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
#endif
array_init(return_value);
if (!php_posix_passwd_to_array(pw, return_value)) {
zend_array_destroy(Z_ARR_P(return_value));
php_error_docref(NULL, E_WARNING, "Unable to convert posix passwd struct to array");
RETVAL_FALSE;
}
#if defined(ZTS) && defined(_SC_GETPW_R_SIZE_MAX) && defined(HAVE_GETPWNAM_R)
efree(buf);
#endif
}
/* }}} */
/* {{{ User database access (POSIX.1, 9.2.2) */
PHP_FUNCTION(posix_getpwuid)
{
zend_long uid;
#if defined(ZTS) && defined(_SC_GETPW_R_SIZE_MAX) && defined(HAVE_GETPWUID_R)
struct passwd _pw;
struct passwd *retpwptr = NULL;
long pwbuflen;
char *pwbuf;
int ret;
#endif
struct passwd *pw;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(uid)
ZEND_PARSE_PARAMETERS_END();
#if defined(ZTS) && defined(_SC_GETPW_R_SIZE_MAX) && defined(HAVE_GETPWUID_R)
pwbuflen = sysconf(_SC_GETPW_R_SIZE_MAX);
if (pwbuflen < 1) {
RETURN_FALSE;
}
pwbuf = emalloc(pwbuflen);
try_again:
ret = getpwuid_r(uid, &_pw, pwbuf, pwbuflen, &retpwptr);
if (ret || retpwptr == NULL) {
if (errno == ERANGE) {
pwbuflen *= 2;
pwbuf = erealloc(pwbuf, pwbuflen);
goto try_again;
}
POSIX_G(last_error) = ret;
efree(pwbuf);
RETURN_FALSE;
}
pw = &_pw;
#else
if (NULL == (pw = getpwuid(uid))) {
POSIX_G(last_error) = errno;
RETURN_FALSE;
}
#endif
array_init(return_value);
if (!php_posix_passwd_to_array(pw, return_value)) {
zend_array_destroy(Z_ARR_P(return_value));
php_error_docref(NULL, E_WARNING, "Unable to convert posix passwd struct to array");
RETVAL_FALSE;