在项目中,使用ssh连接远程服务过程中,由于服务端底层修改,导致ssh执行命令异常,方案采用模拟putty客户端方式抓取服务端回返的数据。
出现以下问题:
1,由于返回数据过大,因此会出现“--More--”问题,该问题,可通过模拟手动数据enter键使返回数据正常。
2,当时操作步骤1时,会出现数据格式存在问题,因此可以修改API,
#define MAX_PTY_SIZE (4096000)
libssh2_channel_request_pty_size(this->_chan, MAX_PTY_SIZE, MAX_PTY_SIZE);
该设置可能会增加缓冲区大小(猜测)因此可解决以上问题。
#ifndef __LIB_SSH_H__
#define __LIB_SSH_H__#include
#include #ifdef WIN32 // WINDOWS
#include
#include
#else // UNIX
#include
#include
#include
#include
#endif#include
#include
#include
#include
#include #include
#include
#include
#include
#include
#include "factory.h"
namespace libssh2
{static std::atomic_uint __libshh2_session_count;static std::mutex __libshh2_session_count_mutex;static const unsigned int MAX_BUF_SIZE =(128*1024);typedef unsigned char auth_methods_t;class auth_methods{public:static const auth_methods_t PASSWORD = 1;static const auth_methods_t KEYS = 2;static const auth_methods_t INTERACTIVE = 4;};Exceptions class exception : std::exception{public:exception(){this->_what = "A generic exception has occurred.";}exception(std::string what){this->_what = what;}const char* what(){return this->_what.c_str();}protected:std::string _what;};class connect_exception : public exception{public:connect_exception(int error_number){// Convert error number to stringthis->_errorno = error_number;std::stringstream w;w << "Connection on socket failed with " << error_number;this->_what = w.str();}int get_socket_error(){return this->_errorno;}private:int _errorno;};class authentication_exception : public exception{public:authentication_exception(){this-&