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james
2024-08-05 20:57:09 +08:00
commit 46d9ee7795
3020 changed files with 1725767 additions and 0 deletions
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6
rt-thread/components/libc/posix/io/stdio/SConscript Normal file
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from building import *
src = ['stdio.c']
group = DefineGroup('POSIX', src, depend = ['RT_USING_POSIX_STDIO'], CPPPATH = [GetCurrentDir()])
Return('group')

32
rt-thread/components/libc/posix/io/stdio/posix/stdio.h Normal file
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017/10/15 bernard the first version
*/
#ifndef __POSIX_STDIO_H__
#define __POSIX_STDIO_H__
#include <rtconfig.h>
#include <stdio.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
int rt_posix_stdio_init(void);
int rt_posix_stdio_get_console(void);
int rt_posix_stdio_set_console(const char* device_name, int mode);
ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream);
ssize_t getline(char **lineptr, size_t *n, FILE *stream);
#ifdef __cplusplus
}
#endif
#endif /* __POSIX_STDIO_H__ */

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rt-thread/components/libc/posix/io/stdio/stdio.c Normal file
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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017/10/15 bernard the first version
* 2023/08/07 Meco Man rename as posix/stdio.c
*/
#include <rtthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/errno.h>
#include "posix/stdio.h"
#define STDIO_DEVICE_NAME_MAX 32
int sys_dup2(int oldfd, int new);
int rt_posix_stdio_init(void)
{
rt_device_t dev_console;
dev_console = rt_console_get_device();
if (dev_console)
{
int fd = rt_posix_stdio_set_console(dev_console->parent.name, O_RDWR);
if (fd < 0)
{
return -1;
}
/* set fd (0, 1, 2) */
sys_dup2(fd, 0);
sys_dup2(fd, 1);
sys_dup2(fd, 2);
}
return 0;
}
INIT_ENV_EXPORT(rt_posix_stdio_init);
#if defined(RT_USING_NEWLIBC)
#define NEWLIB_VERSION_NUM (__NEWLIB__ * 10000U + __NEWLIB_MINOR__ * 100U + __NEWLIB_PATCHLEVEL__)
static FILE* std_console = NULL;
int rt_posix_stdio_set_console(const char* device_name, int mode)
{
FILE *fp;
char name[STDIO_DEVICE_NAME_MAX];
char *file_mode;
rt_snprintf(name, sizeof(name) - 1, "/dev/%s", device_name);
name[STDIO_DEVICE_NAME_MAX - 1] = '\0';
if (mode == O_RDWR)
{
file_mode = "r+";
}
else if (mode == O_WRONLY)
{
file_mode = "wb";
}
else
{
file_mode = "rb";
}
fp = fopen(name, file_mode);
if (fp)
{
setvbuf(fp, NULL, _IONBF, 0);
if (std_console)
{
fclose(std_console);
std_console = NULL;
}
std_console = fp;
if (mode == O_RDWR)
{
_GLOBAL_REENT->_stdin = std_console;
}
else
{
_GLOBAL_REENT->_stdin = NULL;
}
if (mode == O_RDONLY)
{
_GLOBAL_REENT->_stdout = NULL;
_GLOBAL_REENT->_stderr = NULL;
}
else
{
_GLOBAL_REENT->_stdout = std_console;
_GLOBAL_REENT->_stderr = std_console;
}
#if (NEWLIB_VERSION_NUM < 30400U) || (NEWLIB_VERSION_NUM >= 40000U && NEWLIB_VERSION_NUM < 40300U)
_GLOBAL_REENT->__sdidinit = 1; /* __sdidinit is obselete */
#endif
}
if (std_console)
return fileno(std_console);
return -1;
}
int rt_posix_stdio_get_console(void)
{
if (std_console)
return fileno(std_console);
else
return -1;
}
#elif defined(RT_USING_MUSLLIBC)
static FILE* std_console = NULL;
int rt_posix_stdio_set_console(const char* device_name, int mode)
{
FILE *fp;
char name[STDIO_DEVICE_NAME_MAX];
char *file_mode;
rt_snprintf(name, sizeof(name) - 1, "/dev/%s", device_name);
name[STDIO_DEVICE_NAME_MAX - 1] = '\0';
if (mode == O_RDWR) file_mode = "r+";
else if (mode == O_WRONLY) file_mode = "wb";
else file_mode = "rb";
fp = fopen(name, file_mode);
if (fp)
{
setvbuf(fp, NULL, _IONBF, 0);
if (std_console)
{
fclose(std_console);
std_console = NULL;
}
std_console = fp;
}
if (std_console)
{
int fd = fileno(std_console);
return fd;
}
return -1;
}
int rt_posix_stdio_get_console(void)
{
int ret = -1;
if (std_console)
{
ret = fileno(std_console);
}
return ret;
}
#else
static int std_fd = -1;
int rt_posix_stdio_set_console(const char* device_name, int mode)
{
int fd;
char name[STDIO_DEVICE_NAME_MAX];
rt_snprintf(name, sizeof(name) - 1, "/dev/%s", device_name);
name[STDIO_DEVICE_NAME_MAX - 1] = '\0';
fd = open(name, mode, 0);
if (fd >= 0)
{
if (std_fd >= 0)
{
close(std_fd);
}
std_fd = fd;
}
return std_fd;
}
int rt_posix_stdio_get_console(void) {
return std_fd;
}
#endif /* defined(RT_USING_NEWLIBC) */
ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream)
{
char *cur_pos, *new_lineptr;
size_t new_lineptr_len;
int c;
if (lineptr == NULL || n == NULL || stream == NULL)
{
errno = EINVAL;
return -1;
}
if (*lineptr == NULL)
{
*n = 128; /* init len */
if ((*lineptr = (char *)malloc(*n)) == NULL)
{
errno = ENOMEM;
return -1;
}
}
cur_pos = *lineptr;
for (;;)
{
c = getc(stream);
if (ferror(stream) || (c == EOF && cur_pos == *lineptr))
return -1;
if (c == EOF)
break;
if ((*lineptr + *n - cur_pos) < 2)
{
if (LONG_MAX / 2 < *n)
{
#ifdef EOVERFLOW
errno = EOVERFLOW;
#else
errno = ERANGE; /* no EOVERFLOW defined */
#endif
return -1;
}
new_lineptr_len = *n * 2;
if ((new_lineptr = (char *)realloc(*lineptr, new_lineptr_len)) == NULL)
{
errno = ENOMEM;
return -1;
}
cur_pos = new_lineptr + (cur_pos - *lineptr);
*lineptr = new_lineptr;
*n = new_lineptr_len;
}
*cur_pos++ = (char)c;
if (c == delim)
break;
}
*cur_pos = '\0';
return (ssize_t)(cur_pos - *lineptr);
}
ssize_t getline(char **lineptr, size_t *n, FILE *stream)
{
return getdelim(lineptr, n, '\n', stream);
}