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/*
ChibiOS - Copyright (C) 2006..2019 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file sb/host/sbposix.c
* @brief ARM sandbox host Posix API code.
*
* @addtogroup ARM_SANDBOX_HOSTAPI
* @{
*/
#include "ch.h"
#include "sb.h"
/*===========================================================================*/
/* Module local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local types. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported functions. */
/*===========================================================================*/
uint32_t sb_posix_open(const char *pathname, uint32_t flags) {
(void)pathname;
(void)flags;
return SB_ERR_ENOENT;
}
uint32_t sb_posix_close(uint32_t fd) {
if ((fd == 0U) || (fd == 1U) || (fd == 2U)) {
return SB_ERR_NOERROR;
}
return SB_ERR_EBADFD;
}
uint32_t sb_posix_read(uint32_t fd, uint8_t *buf, size_t count) {
sb_class_t *sbcp = (sb_class_t *)chThdGetSelfX()->ctx.syscall.p;
if (!sb_is_valid_write_range(sbcp, (void *)buf, count)) {
return SB_ERR_EFAULT;
}
if (fd == 0U) {
SandboxStream *ssp = sbcp->config->stdin_stream;
if ((count == 0U) || (ssp == NULL)) {
return 0U;
}
return (uint32_t)ssp->vmt->read((void *)ssp, buf, count);
}
return SB_ERR_EBADFD;
}
uint32_t sb_posix_write(uint32_t fd, const uint8_t *buf, size_t count) {
sb_class_t *sbcp = (sb_class_t *)chThdGetSelfX()->ctx.syscall.p;
if (!sb_is_valid_read_range(sbcp, (const void *)buf, count)) {
return SB_ERR_EFAULT;
}
if (fd == 1U) {
SandboxStream *ssp = sbcp->config->stdout_stream;
if ((count == 0U) || (ssp == NULL)) {
return 0U;
}
return (uint32_t)ssp->vmt->write((void *)ssp, buf, count);
}
if (fd == 2U) {
SandboxStream *ssp = sbcp->config->stderr_stream;
if ((count == 0U) || (ssp == NULL)) {
return 0U;
}
return (uint32_t)ssp->vmt->write((void *)ssp, buf, count);
}
return SB_ERR_EBADFD;
}
uint32_t sb_posix_lseek(uint32_t fd, uint32_t offset, uint32_t whence) {
(void)offset;
(void)whence;
if ((fd == 0U) || (fd == 1U) || (fd == 2U)) {
return SB_ERR_ESPIPE;
}
return SB_ERR_EBADFD;
}
/** @} */
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