myshell.h~

这是一个shell的实现程序。其中System的实现参考了linux的。不好意思哈。

#ifndef _MYSHELL_H_
#define _MYSHELL_H_

#include <stdlib.h>
#include <signal.h>
#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <dirent.h>


#ifndef _U_D_
#define EXTERN extern
#else
#define EXTERN 
#endif

extern int errno;

#define CommandNumber 9
#define MaxCommandLine 256
#define MaxParamNumber 8


enum CommandType
{
	QuitType, CDType, DirType, ClrType, EnvironType, EchoType, HelpType, PauseType, MyshellType
};



//These functions are completed by this program.
EXTERN void quitShell(char* params[], int paramNumber);
EXTERN void changeDir(char* params[], int paramNumber);
EXTERN void listDir(char* params[], int paramNumber);
EXTERN void clrFile(char* params[], int paramNumber);
EXTERN void environFile(char* params[], int paramNumber) ;
EXTERN void echoFile(char* params[], int paramNumber);
EXTERN void helpFile(char* params[], int paramNumber);
EXTERN void pauseFile(char* params[], int paramNumber);

//Analyse the input direction.
EXTERN void inputDirect(char* params[], int paramNumber);


//Analyse the commandline.
EXTERN int parseCommand(char* cmdStr, char* params[], int* paramNumber);



//The interal functions
EXTERN void dodir(char* path,FILE * fp);
EXTERN void printPrompt();
EXTERN void errhandle(char* msg);
EXTERN int outputDirect(char* params[], int paramNumber, int * fileIndex);
EXTERN int createbatch();
EXTERN int ampersandFunc(char* cmdStr);


//To obtain the goal of executing the outside shell.
EXTERN int execute(const char * cmd);



//Some Initialization functions.
EXTERN void Init();
EXTERN void InitEnvironParams();
EXTERN int newEnvironParams(const char * name,const char * value);



//A string used to delimite a commandline.
EXTERN char* delim;
EXTERN char* deline;

//Simple help string.
EXTERN char* helpStr;

//Command Strings.
EXTERN char* commandStr[CommandNumber];

//A function pointer Array which points the different functions.
EXTERN void (*commandArray[CommandNumber])(char* params[], int paramNumber);

/*

EXTERN char* delim=" \n";

EXTERN char* helpStr="Syntax: quit\nSyntax: cd directory\nSyntax: dir [directory]\nSyntax: clr \nSyntax: environ\nSyntax:  echo \nSyntax: help \nSyntax:  pause\n";


EXTERN char* commandStr[CommandNumber]=
{
	"quit", "cd", "dir", "clr", "environ", "echo","help","pause"
};


//A function pointer Array which points the different functions.
EXTERN void (*commandArray[CommandNumber])(char* params[], int paramNumber)={quitShell,changeDir,listDir,clrFile,environFile,echoFile,helpFile,pauseFile};
*/

#endif