/**
* CSSHClient.h
* @file 说明信息..
* DATE February 13 2015
*
* @author Ming_zhang
*/ #ifndef _CSSHCLIENT_H_
#define _CSSHCLIENT_H_ /***********************Global Variable Declare***************/
//#define -1; ///< 定义 的宏为0。
////////////////////////////////////////////////////////////// /************************INCLUDE FILES*************************/
#include <string>
extern "C"
{
#include "libssh2.h"
};
using namespace std;
/////////////////////////////////////////////////////////////// /**
* @brief SSH2协议进行远程登录
*
*/
class CSSHClient
{
public: // Constructors & Destructor
CSSHClient();
virtual ~CSSHClient();
static int Init();
static int ClearUp();
int Login(string sIp,int nPort,string sUser,string sPasswd);
int Logout();
int ExecuteCommand(string sCommand);
private:
int WaitSocket(int socket_fd, LIBSSH2_SESSION *session);
private:
SOCKET m_nSSHSocket;
LIBSSH2_SESSION *m_hSSHSession ;
LIBSSH2_CHANNEL *m_hSSHChannel ; }; #endif
/**
* CSSHClient.cpp
* @file 说明信息..
* DATE February 13 2015
*
* @author Ming_zhang
*/ /************************INCLUDE FILES*************************/
#include "stdafx.h"
#include "CSSHClient.h" #include <libssh2.h> #ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif #include <time.h>
#include <sys/types.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <ctype.h> #include <stdexcept>
using namespace std; #pragma comment(lib,"libssh2.lib") /////////////////////////////////////////////////////////////// CSSHClient::CSSHClient():m_nSSHSocket(INVALID_SOCKET)
,m_hSSHSession(0)
,m_hSSHChannel(0)
{
} CSSHClient::~CSSHClient()
{
} int CSSHClient::WaitSocket(int socket_fd, LIBSSH2_SESSION *session)
{
struct timeval timeout;
int rc;
fd_set fd;
fd_set *writefd = NULL;
fd_set *readfd = NULL;
int dir; timeout.tv_sec = 10;
timeout.tv_usec = 0; FD_ZERO(&fd); FD_SET(socket_fd, &fd); /* now make sure we wait in the correct direction */
dir = libssh2_session_block_directions(session); if(dir & LIBSSH2_SESSION_BLOCK_INBOUND)
readfd = &fd; if(dir & LIBSSH2_SESSION_BLOCK_OUTBOUND)
writefd = &fd; rc = select(socket_fd + 1, readfd, writefd, NULL, &timeout); return rc;
} int CSSHClient::Login(string sIp,int nPort,string sUser,string sPasswd)
{
ENTER_FUN(m_hSSHChannel); if(m_nSSHSocket!=INVALID_SOCKET)
{
WLE("<%s>Error: m_nSSHSocket=[%d] can't relogin\n",_FUN_,m_nSSHSocket);
return RET_FAIL;
}
string commandline ="ls /root/";
char *exitsignal=(char *)"none";
const char *fingerprint;
int exitcode;
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(2,0), &wsadata);
#endif
struct sockaddr_in sin;
int bytecount = 0;
size_t len;
LIBSSH2_KNOWNHOSTS *nh;
int type;
int rc = 0;
//建立SOCKET 连接
m_nSSHSocket = socket(AF_INET, SOCK_STREAM, 0);
memset(&sin, 0, sizeof(struct sockaddr_in));
sin.sin_family = AF_INET;
sin.sin_port = htons(nPort);
sin.sin_addr.S_un.S_addr = inet_addr(sIp.c_str());
try
{ int nRet = connect(m_nSSHSocket, (struct sockaddr*)(&sin),sizeof(struct sockaddr_in));
if ( nRet!= 0)
{
WLI("<%s>Error: connect==[%d]\n ",_FUN_);
throw logic_error("Fail connect");
} m_hSSHSession = libssh2_session_init();
if (!m_hSSHSession)
{
WLI("<%s>Error: libssh2_session_init = [%d]\n",_FUN_,m_hSSHSession);
throw logic_error("Fail libssh2_session_init");
} /* ... start it up. This will trade welcome banners, exchange keys,
* and setup crypto, compression, and MAC layers
*/
while ((rc = libssh2_session_handshake(m_hSSHSession, m_nSSHSocket)) ==LIBSSH2_ERROR_EAGAIN); if (rc)
{
WLI("<%s>Error: libssh2_session_handshake = [%d]\n",_FUN_,rc);
throw logic_error("Fail libssh2_session_handshake");
}
nh = libssh2_knownhost_init(m_hSSHSession);
if(!nh)
{
WLI("<%s>Error: libssh2_knownhost_init = [%d]\n",_FUN_,nh);
throw logic_error("Fail libssh2_knownhost_init");
}
libssh2_knownhost_readfile(nh, "known_hosts",LIBSSH2_KNOWNHOST_FILE_OPENSSH); /* store all known hosts to here */
libssh2_knownhost_writefile(nh, "dumpfile",LIBSSH2_KNOWNHOST_FILE_OPENSSH);
fingerprint = libssh2_session_hostkey(m_hSSHSession, &len, &type);
if(fingerprint)
{
struct libssh2_knownhost *host;
#if LIBSSH2_VERSION_NUM >= 0x010206
/* introduced in 1.2.6 */
int check = libssh2_knownhost_checkp(nh, sIp.c_str(), 22, fingerprint, len,
LIBSSH2_KNOWNHOST_TYPE_PLAIN|
LIBSSH2_KNOWNHOST_KEYENC_RAW,
&host);
#else
/* 1.2.5 or older */
int check = libssh2_knownhost_check(nh, hostname, fingerprint, len,
LIBSSH2_KNOWNHOST_TYPE_PLAIN|
LIBSSH2_KNOWNHOST_KEYENC_RAW,
&host);
#endif
WLI( "Host check: %d, key: %s\n", check,
(check <= LIBSSH2_KNOWNHOST_CHECK_MISMATCH)? host->key:"<none>"); /*****
* At this point, we could verify that 'check' tells us the key is
* fine or bail out.
*****/
}
else
{
/* eeek, do cleanup here */
WLI("<%s>Error: libssh2_session_hostkey = [%d]\n",_FUN_,fingerprint);
throw logic_error("Fail libssh2_session_hostkey");
}
libssh2_knownhost_free(nh); if ( strlen(sPasswd.c_str()) != 0 )
{
/* We could authenticate via password */
while ((rc = libssh2_userauth_password(m_hSSHSession, sUser.c_str(), sPasswd.c_str())) ==LIBSSH2_ERROR_EAGAIN); if (rc)
{
WLI("<%s>Error: Authentication by password failed.\n",_FUN_,fingerprint);
throw logic_error("Fail libssh2_userauth_password");
}
}
else
{
/* Or by public key */
while ((rc = libssh2_userauth_publickey_fromfile(m_hSSHSession, sUser.c_str(),
"/home/user/"
".ssh/id_rsa.pub",
"/home/user/"
".ssh/id_rsa",
sPasswd.c_str())) ==
LIBSSH2_ERROR_EAGAIN);
if (rc)
{
WLI("<%s>Error: Authentication by public key failed.\n",_FUN_,fingerprint);
throw logic_error("Fail libssh2_userauth_password"); }
}
}
catch (logic_error &e)
{
WLE("<%s>Error: Desc[%s]\n",_FUN_,e.what()); return RET_FAIL;
}
return RET_OK;
} int CSSHClient::Logout()
{
char *exitsignal=(char *)"none";
int exitcode= 0 ;
int rc = 0; if(m_hSSHSession!=0)
{
libssh2_session_disconnect(m_hSSHSession,"Normal Shutdown, Thank you for playing");
libssh2_session_free(m_hSSHSession);
m_hSSHSession = NULL;
} if(m_nSSHSocket!=INVALID_SOCKET)
{
#ifdef WIN32
closesocket(m_nSSHSocket);
#else
close(m_nSSHSocket);
#endif
m_nSSHSocket = INVALID_SOCKET;
} return RET_OK;
}
int CSSHClient::ExecuteCommand(string commandline)
{
ENTER_FUN(CSSHClient::ExecuteCommand); if(m_hSSHSession==0)
{
WLE("<%s>Error: m_hSSHSession==0 commandline[%s]\n",_FUN_,commandline.c_str());
return RET_FAIL;
}
char *exitsignal=(char *)"none";
/* Exec non-blocking on the remove host */
while( (m_hSSHChannel = libssh2_channel_open_session(m_hSSHSession)) == NULL &&libssh2_session_last_error(m_hSSHSession,NULL,NULL,0) ==LIBSSH2_ERROR_EAGAIN )
{
WaitSocket(m_nSSHSocket, m_hSSHSession);
}
if( m_hSSHChannel == NULL )
{
WLI("<%s>Error: libssh2_channel_open_session [%d].\n",_FUN_,m_hSSHChannel);
//throw logic_error("Fail libssh2_channel_open_session");
return RET_FAIL;
} int bytecount = 0;
int rc = 0;
int exitcode = 0;
while( (rc = libssh2_channel_exec(m_hSSHChannel, commandline.c_str()))==LIBSSH2_ERROR_EAGAIN )
{
WaitSocket(m_nSSHSocket, m_hSSHSession);
}
for( ;; )
{
/* loop until we block */
int rc;
do
{
char buffer[0x4000];
rc = libssh2_channel_read( m_hSSHChannel, buffer, sizeof(buffer) );
if( rc > 0 )
{
int i;
bytecount += rc;
TRACE("We read:\n");
for( i=0; i < rc; ++i )
TRACE("%c",buffer[i]);
TRACE("\n");
}
else {
if( rc != LIBSSH2_ERROR_EAGAIN )
TRACE( "libssh2_channel_read returned %d\n", rc); }
}
while( rc > 0 ); /* this is due to blocking that would occur otherwise so we loop on
this condition */
if( rc == LIBSSH2_ERROR_EAGAIN )
{
WaitSocket(m_nSSHSocket, m_hSSHSession);
}
else
break;
} if(m_hSSHChannel!=0)
{//释放 Channel
while( (rc = libssh2_channel_close(m_hSSHChannel)) == LIBSSH2_ERROR_EAGAIN )WaitSocket(m_nSSHSocket, m_hSSHSession);
if( rc == 0 )
{
exitcode = libssh2_channel_get_exit_status( m_hSSHChannel );
libssh2_channel_get_exit_signal(m_hSSHChannel, &exitsignal,NULL, NULL, NULL, NULL, NULL);
}
if(m_hSSHChannel!=0)
libssh2_channel_free(m_hSSHChannel);
m_hSSHChannel = 0;
} if( rc != 0 )
{
WLI("<%s>Error: libssh2_channel_exec [%d].\n",_FUN_,rc);
return RET_FAIL;
} WLE("<%s> Info:Success sCommand[%s]\n",_FUN_,commandline.c_str());
return RET_OK;
} int CSSHClient::Init()
{
ENTER_FUN(CSSHClient::Init);
int rc = libssh2_init (0);
if (rc != 0)
{
WLI("<%s>Error: libssh2_init = [%d]\n",_FUN_,rc);
return RET_FAIL;
}
return RET_OK;
} int CSSHClient::ClearUp()
{
libssh2_exit();
return RET_OK;
}

对 linux server进行远程运行命令。能够通过 libss2 库进行。以下是 使用这个库的类的定义
</pre><pre name="code" class="cpp">


libssh2进行远程运行LINUX命令的更多相关文章

  1. php 运行linux命令 与 linux下命令行执行php

    1.php运行linux命令 exec函数:string exec(string command, string [array], int [return_var]);  执行函数后不输出结果,返回最 ...

  2. Windows下运行Linux命令

    安装Gow软件,Gow-0.7.0.exe,这样就可以在Windows命令行运行Linux命令,比如通过scp把Windows下的文件拷贝到Linux下. 直接运行安装,不会生成任何客户端,直接使用W ...

  3. 利用java实现可远程执行linux命令的小工具

    在linux的脚本中,如果不对机器做其他的处理,不能实现在linux的机器上执行命令.为了解决这个问题,写了个小工具来解决这个问题. 后面的代码是利用java实现的可远程执行linux命令的小工具,代 ...

  4. java运行Linux命令

    <%@ page language="java" import="java.util.*,java.io.*" pageEncoding="UT ...

  5. 在windows cgywinportable上,通过运行linux命令,批量改动文件名。

    在windows cgywinportable上.通过运行linux命令.批量改动文件名. 实例:将当前文件夹下的全部文件名称加上.sql find ./ -type f -exec mv {}  ' ...

  6. 在Windows上远程运行Linux程序

    1.在Windows主机上安装X Server软件,如Cygwin带的XWin Server 2.在Windows主机上启动X服务器,并将Linux主机设为允许访问该Windows主机上的X服务器. ...

  7. 如何远程运行PowerShell命令?

    首先, 被remote运行PowerShell的windows必须已经join了domain. 其次, 该Windows的PowerShell必须开启对remote command的接受, 运行下面的 ...

  8. 如何在windows下运行Linux命令?(转载)

    在windows上可以运行或使用linux下面的命令吗?可以,小编今天就来分享怎么样让Windows支持Linux命令,做这些安装和设置后,就可以非常方便的在windows系统中使用linux下面的命 ...

  9. 在window的cmd窗口下运行linux命令

    之前看很多视频老师都是用Linux命令操作命令框,感觉很方便,自己在cmd窗口试了一下,所有这些命令都提示不是内部或外部命令,后来发现了windows还有一个powershell命令行工具,用起来似乎 ...

随机推荐

  1. linux下搭建NFS服务器

    服务端:10.6.191.183 客户端:10.6.191.182 NFS 是Network File System的缩写,即网络文件系统.一种使用于分散式文件系统的协定,由Sun公司开发,于1984 ...

  2. Linux LVM在线扩容

    环境: 虚拟化环境,SUSE Linux Enterprise Server 11sp3,直接把虚拟磁盘从100G改成150G. 现有的LVM是100G,/home 的LV需要再加50G. 步骤: f ...

  3. P4555 [国家集训队]最长双回文串(回文树)

    题目描述 顺序和逆序读起来完全一样的串叫做回文串.比如acbca是回文串,而abc不是(abc的顺序为abc,逆序为cba,不相同). 输入长度为 n 的串 S ,求 S 的最长双回文子串 T ,即可 ...

  4. Log4j2打印一行日志时返回本行日志的字符串

    import org.apache.logging.log4j.Level; import org.apache.logging.log4j.core.impl.Log4jLogEvent; impo ...

  5. [Recompose] Refactor React Render Props to Streaming Props with RxJS and Recompose

    This lesson takes the concept of render props and migrates it over to streaming props by keeping the ...

  6. [React] Implement a React Context Provider

    If you have state that needs to exist throughout your application, then you may find yourself passin ...

  7. java中string与json互相转化

    在Java中socket数据传输时,数据类型往往比較难选择.可能要考虑带宽.跨语言.版本号的兼容等问题. 比較常见的做法有两种:一是把对象包装成JSON字符串传输,二是採用java对象的序列化和反序列 ...

  8. Nrf51822中设置128bit UUID service

    Nrf51822中设置128bit UUID service uint32_tble_dajia_add_service(ble_dajia_t *p_wechat) { uint32_t err_c ...

  9. [python]pip坏了怎么办?

    今天,给一位新同事配置pip,用get-pip.py安装之后.出现错误: raise DistributionNotFound(req)  # XXX put more info here pkg_r ...

  10. 关于WMware Workstation出现 “”该虚拟机似乎正在使用中“”解决办法

    如图 直接到配置文件D:\centos1\这个目录下 将vmdk.lck文化删除 然后重新打开虚拟机便可进入 问题解决