首页 \ 问答 \ 在libcurl中执行SFTP / FTP命令而不进行实际传输(Executing SFTP/FTP command in libcurl without actual transfer)

在libcurl中执行SFTP / FTP命令而不进行实际传输(Executing SFTP/FTP command in libcurl without actual transfer)

 是否可以在libcurl中执行SFTP命令而无需实际进行文件传输。  
 我使用CURLOPT_QUOTE设置命令执行（实际文件删除），但在执行操作（并且执行成功，文件被删除）后，curl正在尝试上传或下载文件（基于CURLOPT_UPLOAD），因此我收到CURLE_REMOTE_FILE_NOT_FOUND错误错误码。  
 到目前为止我尝试了 - 没有设置URL导致“格式错误的网址错误”，设置CURLOPT_CONNECT_ONLY导致报价也没有执行。 有没有标准的方法？  
curl_global_init(CURL_GLOBAL_DEFAULT);

char temp[2000];
_snprintf(STRPARAM(temp),"%s://%s:%d/%s","sftp",m_url,m_port,a_ftpPath);
curl_easy_setopt(m_curl, CURLOPT_URL,temp);
_snprintf(STRPARAM(temp),"%s:%s",m_name,m_pass);
curl_easy_setopt(m_curl, CURLOPT_USERPWD, temp);
curl_easy_setopt(m_curl, CURLOPT_SSH_AUTH_TYPES, CURLSSH_AUTH_PASSWORD);

curl_easy_setopt(m_curl, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(m_curl, CURLOPT_READFUNCTION, NULL);
curl_easy_setopt(m_curl, CURLOPT_NOBODY, 1L);
curl_easy_setopt(m_curl, CURLOPT_HEADER, 1L);

struct curl_slist *headerlist=NULL;
_snprintf(STRPARAM(temp),"rm /%s",a_ftpPath);
headerlist = curl_slist_append(headerlist, temp);
curl_easy_setopt(m_curl, CURLOPT_QUOTE, headerlist); 

m_res = curl_easy_perform(m_curl);

curl_easy_setopt(m_curl, CURLOPT_QUOTE, NULL); 
curl_easy_setopt(m_curl, CURLOPT_HEADER, 0L);
curl_easy_setopt(m_curl, CURLOPT_NOBODY, 0L);
curl_slist_free_all (headerlist);

curl_global_cleanup();

Is it possible to execute SFTP command in libcurl without actual attempt of file transfer. 
I set the command to execute (file deletion actually) using CURLOPT_QUOTE, but after executing the operation (and it executes successfully, file is deleted) curl is trying to upload or download file (based on CURLOPT_UPLOAD), so I get the CURLE_REMOTE_FILE_NOT_FOUND error error code. 
What I tried so far - not setting the URL results in "malformed url error", setting CURLOPT_CONNECT_ONLY result in quote not executed as well. Is there any standard way? 
curl_global_init(CURL_GLOBAL_DEFAULT);

char temp[2000];
_snprintf(STRPARAM(temp),"%s://%s:%d/%s","sftp",m_url,m_port,a_ftpPath);
curl_easy_setopt(m_curl, CURLOPT_URL,temp);
_snprintf(STRPARAM(temp),"%s:%s",m_name,m_pass);
curl_easy_setopt(m_curl, CURLOPT_USERPWD, temp);
curl_easy_setopt(m_curl, CURLOPT_SSH_AUTH_TYPES, CURLSSH_AUTH_PASSWORD);

curl_easy_setopt(m_curl, CURLOPT_UPLOAD, 0L);
curl_easy_setopt(m_curl, CURLOPT_READFUNCTION, NULL);
curl_easy_setopt(m_curl, CURLOPT_NOBODY, 1L);
curl_easy_setopt(m_curl, CURLOPT_HEADER, 1L);

struct curl_slist *headerlist=NULL;
_snprintf(STRPARAM(temp),"rm /%s",a_ftpPath);
headerlist = curl_slist_append(headerlist, temp);
curl_easy_setopt(m_curl, CURLOPT_QUOTE, headerlist); 

m_res = curl_easy_perform(m_curl);

curl_easy_setopt(m_curl, CURLOPT_QUOTE, NULL); 
curl_easy_setopt(m_curl, CURLOPT_HEADER, 0L);
curl_easy_setopt(m_curl, CURLOPT_NOBODY, 0L);
curl_slist_free_all (headerlist);

curl_global_cleanup();

原文：https://stackoverflow.com/questions/13509709

更新时间：2023-11-20 12:11

最满意答案

 你可以试试这个，  
- ((?:(?!\((?:not|yes)\)).)*)(?=\s|$)
 
 DEMO  
 要么  
- (.*?)(?=\s+\((?:not|yes)\)|$)
 
 这将捕获所有字符，直到达到space(yes)或space(no)或行尾。  
 DEMO 

You may try this, 
- ((?:(?!\((?:not|yes)\)).)*)(?=\s|$)
 
DEMO 
or 
- (.*?)(?=\s+\((?:not|yes)\)|$)
 
This would capture all the chars until a space(yes) or space(no) or end of the line is reached. 
DEMO

在libcurl中执行SFTP / FTP命令而不进行实际传输(Executing SFTP/FTP command in libcurl without actual transfer)

最满意答案

相关问答

了解负面预测(Understanding negative lookahead)[2023-12-10]

正则表达式负面前瞻(Regular expression negative lookahead)[2022-04-21]

具有多个负面条件的正则表达式预测(Regex lookahead with multiple negative conditions)[2022-07-10]

负面的超前正则表达式忽略单词列表(Negative lookahead regex to ignore list of words)[2022-10-26]

积极的Lookahead正则表达式(Positive Lookahead Regex)[2023-07-11]

在负面预测之前需要帮助正则表达式可选空白(Need help regex optional whitespace before negative lookahead)[2023-07-14]

负面预测RegEx(Negative Lookahead RegEx)[2022-11-16]

如何在正则表达式中获得负面预测以接受更多单词(How to get negative lookahead in regex to accept more words)[2022-03-28]

Regex Negative Lookahead问题(Regex Negative Lookahead issue)[2022-03-23]

适用于Chrome和Safari的正则表达式负面预测(Regex Negative Lookahead for Chrome & Safari)[2022-04-11]

相关文章

最新问答