letter-shell/demo/x86-gcc/shell_port.c

/**
 * @file shell_port.c
 * @author Letter (NevermindZZT@gmail.com)
 * @brief 
 * @version 0.1
 * @date 2019-02-22
 * 
 * @copyright (c) 2019 Letter
 * 
 */

#include "shell.h"
#include "shell_fs.h"
#include <stdio.h>
#include <dirent.h>
#include <unistd.h>
#include <stddef.h>
#include <string.h>

Shell shell;
char shellBuffer[512];
ShellFs shellFs;
char shellPathBuffer[512] = "/";

/**
 * @brief 用户shell写
 * 
 * @param data 数据
 */
void userShellWrite(char data)
{
    putchar(data);
}

/**
 * @brief 用户shell读
 * 
 * @param data 数据
 * @return char 状态
 */
signed char userShellRead(char *data)
{
    system("stty -echo");
    system("stty -icanon");
    *data = getchar();
    system("stty icanon");
    system("stty echo");
    return 0;
}

/**
 * @brief 列出文件
 * 
 * @param path 路径
 * @param buffer 结果缓冲
 * @param maxLen 最大缓冲长度
 * @return size_t 0
 */
size_t userShellListDir(char *path, char *buffer, size_t maxLen)
{
    DIR *dir;
    struct dirent *ptr;
    int i;
    dir = opendir(path);
    memset(buffer, 0, maxLen);
    while((ptr = readdir(dir)) != NULL)
    {
        strcat(buffer, ptr->d_name);
        strcat(buffer, "\t");
    }
    closedir(dir);
    return 0;
}

/**
 * @brief 用户shell初始化
 * 
 */
void userShellInit(void)
{
    shellFs.getcwd = getcwd;
    shellFs.chdir = chdir;
    shellFs.listdir = userShellListDir;
    shellFsInit(&shellFs, shellPathBuffer, 512);

    shell.write = userShellWrite;
    shell.read = userShellRead;
    shellSetPath(&shell, shellPathBuffer);
    shellInit(&shell, shellBuffer, 512);
    shellCompanionAdd(&shell, SHELL_COMPANION_ID_FS, &shellFs);
}


int varInt = 0;
SHELL_EXPORT_VAR(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_VAR_INT), varInt, &varInt, int var test);

char str[] = "test string";
SHELL_EXPORT_VAR(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_VAR_STRING), varStr, str, string var test);

SHELL_EXPORT_VAR(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_VAR_POINT), shell, &shell, pointer var test);

int dumpInfo(void)
{
    printf("hello world\r\n");
    return 0;
}

int sysInfoSet(int value)
{
    printf("sys info: %d\r\n", value);
    return value;
}

ShellNodeVarAttr sysInfo = {
    .get = dumpInfo,
    .set = sysInfoSet,
};
SHELL_EXPORT_VAR(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_VAR_NODE), sysInfo, &sysInfo, node var test);

int shellInfoGet(Shell *shell)
{
    printf("user name: %s\r\n", shell->info.user->data.user.name);
    printf("path: %s\r\n", shell->info.path);
    return (int)shell;
}

ShellNodeVarAttr shellInfo = {
    .var = &shell,
    .get = shellInfoGet,
};
SHELL_EXPORT_VAR(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_VAR_NODE)|SHELL_CMD_READ_ONLY,
shellInfo, &shellInfo, node var test);

void shellKeyTest(void)
{
    char data;
    Shell *shell = shellGetCurrent();
    SHELL_ASSERT(shell && shell->read, return);
    while (1)
    {
        if (shell->read(&data) == 0)
        {
            if (data == '\n' || data == '\r')
            {
                return;
            }
            shellPrint(shell, "%02x ", data);
        }
    }
}
SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC),
keyTest, shellKeyTest, key test);