curl 实现sftp功能

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1. .h文件

#include <stdio.h>
#include <curl/curl.h>
#include <string>
#pragma comment(lib,"libcurl_imp.lib")
#undef DISABLE_SSH_AGENT

int get_file_size (FILE *file);
bool SftpUpload (std::string strSourceFilePath, std::string strSftpFilePath, int iPort, tstring &strError, int &iError);

2..cpp文件

static size_t read_callback(void *ptr, size_t size, size_t nmemb, FILE *stream){size_t retcode;curl_off_t nread;retcode = fread(ptr, size, nmemb, stream);nread = (curl_off_t)retcode;fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T " bytes from file\n", nread);return retcode;}int CSftp::get_file_size(FILE *file){int size = 0;fseek(file, 0L, SEEK_END);size = ftell(file);fseek(file, 0L, SEEK_SET);return size;}//strSourceFilePath 要上传的文件的文件路径//strSftpFilePath sftp的上传路径 sftp://username:passwors@ip/path/file.txt//iport 端口//strError 返回错误信息bool CSftp::SftpUpload(std::string strSourceFilePath, std::string strSftpFilePath, int iPort, tstring &strError, int &iError){bool bError = true;CURL* curl;CURLcode res;const char *sourcePath = strSourceFilePath.c_str();const char *sftpPath = strSftpFilePath.c_str();FILE* file = fopen(sourcePath, "rb");curl_global_init(CURL_GLOBAL_ALL);curl = curl_easy_init();if(curl) {curl_easy_setopt(curl, CURLOPT_URL,sftpPath);curl_easy_setopt(curl, CURLOPT_PORT, iPort);curl_easy_setopt(curl, CURLOPT_READFUNCTION,read_callback);curl_easy_setopt(curl, CURLOPT_READDATA,file);curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,get_file_size(file));curl_easy_setopt(curl, CURLOPT_FTP_RESPONSE_TIMEOUT,120);#ifndef DISABLE_SSH_AGENTcurl_easy_setopt(curl, CURLOPT_SSH_AUTH_TYPES, CURLSSH_AUTH_PASSWORD);#endifcurl_easy_setopt(curl, CURLOPT_FTP_CREATE_MISSING_DIRS, 1L);curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);res = curl_easy_perform(curl);curl_easy_cleanup(curl);if(CURLE_OK != res) {fprintf(stderr, "curl told us %d\n", res);bError = false;GetErrorInfo(res, strError);iError = res;}}fclose(file); curl_global_cleanup();return bError;}void CSftp::GetErrorInfo (int resId, std::wstring & strError){    switch (resId)    {    case CURLE_COULDNT_CONNECT:        strError = _T("couldn't connect");        break;    case CURLE_LOGIN_DENIED:        strError = _T("user, password or similar was not accepted and we failed to login.");        break;    case CURLE_REMOTE_FILE_NOT_FOUND:        strError = _T("remote file not found");        break;    case CURLE_COULDNT_RESOLVE_HOST:        strError = _T("couldn't resolve host");        break;    default:        strError = resId;        break;    }}

实例地址：

http://download.csdn.net/detail/leftstrang/9632264

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