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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014-2018 Paul Sokolovsky
* Copyright (c) 2017-2022 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "py/runtime.h"
#include "py/mphal.h"
static mp_obj_t mp_os_getenv(size_t n_args, const mp_obj_t *args) {
const char *s = getenv(mp_obj_str_get_str(args[0]));
if (s == NULL) {
if (n_args == 2) {
return args[1];
}
return mp_const_none;
}
return mp_obj_new_str_from_cstr(s);
}
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_os_getenv_obj, 1, 2, mp_os_getenv);
static mp_obj_t mp_os_putenv(mp_obj_t key_in, mp_obj_t value_in) {
const char *key = mp_obj_str_get_str(key_in);
const char *value = mp_obj_str_get_str(value_in);
int ret;
#if _WIN32
ret = _putenv_s(key, value);
#else
ret = setenv(key, value, 1);
#endif
if (ret == -1) {
mp_raise_OSError(errno);
}
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_2(mp_os_putenv_obj, mp_os_putenv);
static mp_obj_t mp_os_unsetenv(mp_obj_t key_in) {
const char *key = mp_obj_str_get_str(key_in);
int ret;
#if _WIN32
ret = _putenv_s(key, "");
#else
ret = unsetenv(key);
#endif
if (ret == -1) {
mp_raise_OSError(errno);
}
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_1(mp_os_unsetenv_obj, mp_os_unsetenv);
static mp_obj_t mp_os_system(mp_obj_t cmd_in) {
const char *cmd = mp_obj_str_get_str(cmd_in);
MP_THREAD_GIL_EXIT();
int r = system(cmd);
MP_THREAD_GIL_ENTER();
RAISE_ERRNO(r, errno);
return MP_OBJ_NEW_SMALL_INT(r);
}
static MP_DEFINE_CONST_FUN_OBJ_1(mp_os_system_obj, mp_os_system);
static mp_obj_t mp_os_urandom(mp_obj_t num) {
mp_int_t n = mp_obj_get_int(num);
vstr_t vstr;
vstr_init_len(&vstr, n);
mp_hal_get_random(n, vstr.buf);
return mp_obj_new_bytes_from_vstr(&vstr);
}
static MP_DEFINE_CONST_FUN_OBJ_1(mp_os_urandom_obj, mp_os_urandom);
static mp_obj_t mp_os_errno(size_t n_args, const mp_obj_t *args) {
if (n_args == 0) {
return MP_OBJ_NEW_SMALL_INT(errno);
}
errno = mp_obj_get_int(args[0]);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_os_errno_obj, 0, 1, mp_os_errno);
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