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