?? commands.c
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/*
* commands.c
* the genie shell command part for ucosII
* under skyeye
*
* Bugs report: ganganwen@163.com
* Last modified: 2005-04-25
* changed by: wenjia
*/
#include "includes.h"
command ShellComms[MAX_COMMAND_NUM];
FS_FILE *myfile;
char mybuffer[0x100];
char CurDir[64]="\\"; //show current dir
char TargetVal[64] = "\\";
//TargetVal數(shù)組第一功能功能：用于組合當(dāng)前目錄與輸入數(shù)據(jù)如
//CurDir = "\mydir" cat 1.txt 時組合成cat \mydir\1.txt
//第二功能：保留CurDir目錄，因為如果cd參數(shù)第一個字符為\時就從&CurDir[0]
//開始復(fù)制，但若輸入目錄出錯則將原來的CurDir目錄還原。
INT8U DirExist(const char *DirName);
void RewindRoot(void);
void CreateTargetVal(const char *arg);
//判斷目錄名是否存在
//1:目錄存在 0:目錄不存在
INT8U DirExist(const char *DirName)
{
FS_DIR *dirp;
dirp = FS_OpenDir(DirName);
if (dirp)
{
FS_CloseDir(dirp);
// _log("Open %s Exist!\n", DirName);
return 1;
} else {
// _log("The %s Dir is not exist!\n", DirName);
return 0;
}
}
//--------------------------------------------
//#define CUR_DRI_MAX_LEN 32
//FS_DIR CurDir[CUR_DRI_MAX_LEN 32];
// struct FS_DIRENT *direntp;
/*********************************************************************
*
* _write_file
*
This routine demonstrates, how to create and write to a file
using the file system.
*/
static void _write_file(const char *name, const char *txt) {
int x;
/* create file */
myfile = FS_FOpen(name,"w");
if (myfile) {
/* write to file */
x = FS_FWrite(txt,1,strlen(txt),myfile);
/* all data written ? */
if (x!=(int)strlen(txt)) {
/* check, why not all data was written */
x = FS_FError(myfile);
sprintf(mybuffer,"Not all bytes written because of error %d.\n\n",x);
_error(mybuffer);
}
/* close file */
FS_FClose(myfile);
_log("\n\n");
}
else {
sprintf(mybuffer,"Unable to create file %s\n\n",name);
_error(mybuffer);
}
}
/*********************************************************************
*
* _dump_file
*
This routine demonstrates, how to open and read from a file using
the file system.
*/
static void _dump_file(const char *name) {
int x;
/* open file */
myfile = FS_FOpen(name,"r");
if (myfile) {
/* read until EOF has been reached */
do {
x = FS_FRead(mybuffer,1,sizeof(mybuffer)-1,myfile);
mybuffer[x]=0;
if (x) {
_log(mybuffer);
}
} while (x);
/* check, if there is no more data, because of EOF */
x = FS_FError(myfile);
if (x!=FS_ERR_EOF) {
/* there was a problem during read operation */
sprintf(mybuffer,"Error %d during read operation.\n",x);
_error(mybuffer);
}
/* close file */
FS_FClose(myfile);
_log("\n\n");
}
else {
sprintf(mybuffer,"Unable to open file %s.\n",name);
_error(mybuffer);
}
}
/*********************************************************************
*
* _show_directory
*
This routine demonstrates, how to read a directory.
*/
#if FS_POSIX_DIR_SUPPORT
static void _show_directory(const char *name) {
FS_DIR *dirp;
struct FS_DIRENT *direntp;
dirp = FS_OpenDir(name);
if (dirp) {
do {
direntp = FS_ReadDir(dirp);
if (direntp) {
sprintf(mybuffer,"%s\n",direntp->d_name);
_log(mybuffer);
}
} while (direntp);
FS_CloseDir(dirp);
_log("\n");
}
else {
_error("Unable to open directory\n");
}
}
/*static INT8U _cd_directory(const char *name)
{
FS_DIR *dirp;
struct FS_DIRENT *direntp;
}*/
#endif /* FS_POSIX_DIR_SUPPORT */
/*********************************************************************
*
* _show_free
*
This routine demonstrates, how to read disk space information.
*/
static void _show_free(const char *device) {
FS_DISKFREE_T disk_data;
int x;
_log("Disk information of ");
_log(device);
_log("\n");
x = FS_IoCtl(device,FS_CMD_GET_DISKFREE,0,(void*) &disk_data);
if (x==0) {
sprintf(mybuffer,"total clusters : %lu\navailable clusters : %lu\nsectors/cluster : %u\nbytes per sector : %u\n",
disk_data.total_clusters, disk_data.avail_clusters, disk_data.sectors_per_cluster, disk_data.bytes_per_sector);
_log(mybuffer);
}
else {
_error("Invalid drive specified\n\n");
}
}
/*********************************************************************
*
* InitCommands
*
This routine init shell
*/
void InitCmd(void)
{
INT8U TmpCnt = MAX_COMMAND_NUM;
while (TmpCnt--)
{
ShellComms[TmpCnt].CommandFunc = NULL;
ShellComms[TmpCnt].name = NULL;
ShellComms[TmpCnt].num = 0;
}
}
INT8U InitCommands()
{
InitCmd();
ShellComms[0].num = 0;
ShellComms[0].name = "ls";
ShellComms[0].CommandFunc = lsFunc;
ShellComms[1].num = 1;
ShellComms[1].name = "rm";
ShellComms[1].CommandFunc = rmFunc;
ShellComms[2].num = 2;
ShellComms[2].name = "write";
ShellComms[2].CommandFunc = writeFunc;
ShellComms[3].num = 3;
ShellComms[3].name = "cat";
ShellComms[3].CommandFunc = catFunc;
ShellComms[4].num = 4;
ShellComms[4].name = "format";
ShellComms[4].CommandFunc = formatFunc;
ShellComms[5].num = 5;
ShellComms[5].name = "mkdir";
ShellComms[5].CommandFunc = mkdirFunc;
ShellComms[6].num = 6;
ShellComms[6].name = "rmdir";
ShellComms[6].CommandFunc = rmdirFunc;
ShellComms[7].num = 7;
ShellComms[7].name = "free";
ShellComms[7].CommandFunc = freeFunc;
ShellComms[8].num = 8;
ShellComms[8].name = "help";
ShellComms[8].CommandFunc = helpFunc;
ShellComms[9].num = 9;
ShellComms[9].name = "cd";
ShellComms[9].CommandFunc = cdFunc;
ShellComms[10].num = 10;
ShellComms[10].name = "pwd";
ShellComms[10].CommandFunc = pwdFunc;
ShellComms[11].num = 11;
ShellComms[11].name = "exit";
ShellComms[11].CommandFunc = ExitFunc;
ShellComms[12].num = 12;
ShellComms[12].name = "show";
ShellComms[12].CommandFunc = ShowFunc;
return 0;
}
INT8U ShowFunc(INT8U argc,char **argv)
{
_log("\n========= TargetVal = ");
_log(TargetVal);
_log("========\n");
return 0;
}
INT8U ExitFunc(INT8U argc,char **argv)
{
exit(0);
return 0;
}
INT8U pwdFunc(INT8U argc,char **argv)
{
if (argc != 0)
{
_error("PWD is single arg\n");
return 1;
}
_log(CurDir);
_log("\n");
return 0;
}
//功能：設(shè)置成根目錄
void RewindRoot(void)
{
CurDir[0] = '\\';
CurDir[1] = '\0';
}
//更改當(dāng)前目錄命令
INT8U cdFunc(INT8U argc,char **argv)
{
INT8U DirCurPos = 0;
INT8U CmdLen = 0;
INT8U TmpVal = 0;
INT8U IsRoot = 0;
INT8U IsBackup = 0;
INT8U BackupLen = 0;
DirCurPos = strlen(CurDir); //取得當(dāng)前目錄的字符長度
if (argc != 1)
{
_error("please input command as:cd directoryname ");
_error("\n cd \\ change to root\n cd .. \n cd \\MyDir\\Dir1\n");
_error("\n\n");
return 1;
}
if (strcmp(argv[0], "..") == 0) //回到上一級
{
if (1 == DirCurPos) //設(shè)定長度為1的為根目錄
{
#if EN_DEBUG == 1
_error("This is root dir\n");
#endif
return 1;
} else {
TmpVal = DirCurPos; //取得當(dāng)前目錄的長度并從最后開始查找\
//從最后開始查找將該級目錄清除
//例：\my\dir1 從1開始找到r最后找到\dir的\清除
while (TmpVal--)
{
if (CurDir[TmpVal] == '\\') //是否找到上一級目錄
{
if (TmpVal == 0) //根目錄
{
RewindRoot();
} else {
CurDir[TmpVal] = '\0'; //將最后的\換成結(jié)束符
}
#if EN_DEBUG == 1
_log("\n CurDir Len = %d\n", strlen(CurDir));
#endif
break; //退出循環(huán)
} else {
CurDir[TmpVal] = '\0'; //清除字符
}
}
}
} else if (strcmp(argv[0], "\\") == 0) { //
RewindRoot(); //回到根目錄
} else {
if (strcmp(CurDir, "\\") == 0) //比較方法用于比較是否是當(dāng)前目錄
{
IsRoot = 1;
if ('\\' == argv[0][0]) //如果當(dāng)輸入?yún)?shù)是帶\開始的，如cd \dir\dir1
{
DirCurPos = 0;
}
#if EN_DEBUG == 1
_log("\ncd start at root! DirCurPos = %d\n", DirCurPos);
#endif
} else {
if ('\\' == argv[0][0]) //如果當(dāng)輸入?yún)?shù)是帶\開始的，如cd \dir\dir1
{
//因為當(dāng)前目錄不是根目錄，所以為了防止出錯保留原目錄
IsBackup = 1;
BackupLen = DirCurPos + 1;
FS__CLIB_strncpy(&TargetVal[0], &CurDir[0], BackupLen);
DirCurPos = 0; //從頭開始復(fù)制命令
} else {
CurDir[DirCurPos] = '\\';
DirCurPos++;
}
}
CmdLen = strlen(argv[0]);
FS__CLIB_strncpy(&CurDir[DirCurPos], argv[0], CmdLen + 1); //確保字符是以'\0'結(jié)束請看FS__CLIB_strncpy源碼
#if EN_DEBUG == 1
_log("\nafter FS__CLIB_strncpy() CurDir= %s DirCurPos = %d CmdLen = %d\n", CurDir, DirCurPos, CmdLen);
#endif
if (DirExist(CurDir) == 0) //目錄不存在
{
_log(argv[0]);
_log(" Dir is not exist!\n", );
if (1 == IsRoot) //是否是根目錄
{
RewindRoot();
} else {
if (1 == IsBackup)
{
FS__CLIB_strncpy(&CurDir[0], &TargetVal[0], BackupLen);
} else {
CurDir[DirCurPos - 1] = '\0'; //將加入的目錄清除
}
}
} else {
#if EN_DEBUG == 1
_log("Open %s Exist!\n", CurDir); //目錄存在
#endif
}
}
#if EN_DEBUG == 1
_log("\nCurDir = %s \n", CurDir);
#endif
return 0;
}
INT8U lsFunc(INT8U argc,char **argv)
{
if(argc == 0)
{
_show_directory(CurDir);//_show_directory("");
} else {
_show_directory(argv[0]);
}
return 0;
}
INT8U rmFunc(INT8U argc,char **argv)
{
if(argc != 1)
{
_error("please input command as:rm filename");
_error("\n\n");
return 1;
}
CreateTargetVal(argv[0]);
//if(!FS_Remove(argv[0]))
if(!FS_Remove(TargetVal))
{
_log("remove ");
_log(argv[0]);
_log(" successful\n\n");
}
else
{
_error("remove failure!\n\n");
}
return 0;
}
INT8U writeFunc(INT8U argc,char **argv)
{
if(argc != 2)
{
_error("please input command as:create filename data");
_error("\n\n");
return 1;
}
CreateTargetVal(argv[0]);
//_write_file(argv[0], argv[1]);
_write_file(TargetVal, argv[1]);
return 0;
}
//用于將arg參數(shù)構(gòu)造成CurDir + arg = TargetParam
void CreateTargetVal(const char *arg)
{
INT8U CurDirLen = 0;
//INT8U ArgIsStartRoot = 0;
CurDirLen = strlen(CurDir);
if ('\\' == arg[0])
{
// ArgIsStartRoot = 1;
FS__CLIB_strncpy(&TargetVal[0], arg, strlen(arg) + 1);
} else {
if (1 == CurDirLen) //判斷是否當(dāng)前目錄
{
//if (1 == ArgIsStartRoot)
//{
// FS__CLIB_strncpy(&TargetVal[0], arg, strlen(arg) + 1);
//} else{
FS__CLIB_strncpy(&TargetVal[CurDirLen], arg, strlen(arg) + 1);
//}
//} else {
// if (1 == ArgIsStartRoot)
// {
// FS__CLIB_strncpy(&TargetVal[0], arg, strlen(arg) + 1);
} else {
FS__CLIB_strncpy(TargetVal, CurDir, CurDirLen + 1);
TargetVal[CurDirLen++] = '\\';
#if EN_DEBUG == 1
_log("\n %s\n", TargetVal);
#endif
FS__CLIB_strncpy(&TargetVal[CurDirLen], arg, strlen(arg) + 1);
}
}
#if EN_DEBUG == 1
_log("\nTargetVal = %s\n", TargetVal);
#endif
}
INT8U catFunc(INT8U argc,char **argv)
{
if(argc != 1)
{
_error("please input command as:cat filename");
_error("\n\n");
return 1;
}
CreateTargetVal(argv[0]);
_dump_file(TargetVal);
return 0;
}
INT8U formatFunc(INT8U argc,char **argv)
{
int x;
/* format your RAM disk */
x = FS_IoCtl("ram:0:",FS_CMD_FORMAT_MEDIA,FS_MEDIA_RAM_16KB,0);
if (x!=0) {
_error("Cannot format RAM disk.\n\n");
return 1;
}
else{
_log("format successful\n\n");
return 0;
}
}
INT8U mkdirFunc(INT8U argc,char **argv)
{
if(argc != 1)
{
_error("please input command as:mkdir filename");
_error("\n\n");
return 1;
}
CreateTargetVal(argv[0]);
//if(!FS_MkDir(argv[0]))
if(!FS_MkDir(TargetVal))
{
_log("make directory ");
_log(argv[0]);
_log(" successful\n\n");
}
else
{
_error("mkdir failure! please check disk full or unformated\n");
}
return 0;
}
INT8U rmdirFunc(INT8U argc,char **argv)
{
if(argc != 1)
{
_error("please input command as:mkdir filename");
_error("\n\n");
return 1;
}
CreateTargetVal(argv[0]);
//if(!FS_RmDir(argv[0]))
if(!FS_RmDir(TargetVal))
{
_log("remove ");
_log(argv[0]);
_log(" successful\n\n");
}
else
{
_error("remove failure! please check the directory name\n");
}
return 0;
}
INT8U freeFunc(INT8U argc,char **argv)
{
_show_free("");
_log("\n");
return 0;
}
INT8U helpFunc(INT8U argc,char **argv)
{
ShowHelp();
return 0;
}
void ShowHelp(void)
{
_log("\nformat - 格式化\nmkdir - 建立目錄\nwrite - 創(chuàng)建文件\nrmdir - 刪除目錄\nls \
- 顯示目錄\ncat - 打開文件\nrm - 刪除文件\nfree - 顯示空間\ncd \
- 更改當(dāng)前目錄\nshow - 顯示TargetVal值\npwd - 顯示當(dāng)前目錄\nexit - 退出\n");
}
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