added comments and function headers
This commit is contained in:
Daniel Stenberg
Родитель
617d6eb7ce
Коммит
96fb118251
113
lib/ftp.c
113
lib/ftp.c
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@ -5,7 +5,7 @@
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 2000, Daniel Stenberg, <daniel@haxx.se>, et al.
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* Copyright (C) 2001, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* In order to be useful for every potential user, curl and libcurl are
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* dual-licensed under the MPL and the MIT/X-derivate licenses.
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@ -99,6 +99,15 @@ static CURLcode ftp_cwd(struct connectdata *conn, char *path);
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/* easy-to-use macro: */
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#define FTPSENDF(x,y,z) if((result = Curl_ftpsendf(x,y,z))) return result
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/***********************************************************************
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*
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* AllowServerConnect()
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*
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* When we've issue the PORT command, we have told the server to connect
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* to us. This function will sit and wait here until the server has
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* connected.
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*
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*/
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static CURLcode AllowServerConnect(struct SessionHandle *data,
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struct connectdata *conn,
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int sock)
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@ -533,8 +542,15 @@ CURLcode Curl_ftp_connect(struct connectdata *conn)
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return CURLE_OK;
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}
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/* argument is already checked for validity */
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/***********************************************************************
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*
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* Curl_ftp_done()
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*
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* The DONE function. This does what needs to be done after a single DO has
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* performed.
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*
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* Input argument is already checked for validity.
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*/
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CURLcode Curl_ftp_done(struct connectdata *conn)
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{
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struct SessionHandle *data = conn->data;
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@ -596,6 +612,13 @@ CURLcode Curl_ftp_done(struct connectdata *conn)
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return CURLE_OK;
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}
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/***********************************************************************
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*
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* ftp_sendquote()
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*
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* Where a 'quote' means a list of custom commands to send to the server.
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* The quote list is passed as an argument.
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*/
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static
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CURLcode ftp_sendquote(struct connectdata *conn, struct curl_slist *quote)
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@ -627,6 +650,13 @@ CURLcode ftp_sendquote(struct connectdata *conn, struct curl_slist *quote)
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return CURLE_OK;
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}
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/***********************************************************************
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*
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* ftp_cwd()
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*
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* Send 'CWD' to the remote server to Change Working Directory.
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* It is the ftp version of the unix 'cd' command.
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*/
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static
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CURLcode ftp_cwd(struct connectdata *conn, char *path)
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{
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@ -648,6 +678,12 @@ CURLcode ftp_cwd(struct connectdata *conn, char *path)
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return CURLE_OK;
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}
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/***********************************************************************
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*
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* ftp_getfiletime()
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*
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* Get the timestamp of the given file.
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*/
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static
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CURLcode ftp_getfiletime(struct connectdata *conn, char *file)
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{
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@ -684,6 +720,13 @@ CURLcode ftp_getfiletime(struct connectdata *conn, char *file)
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return result;
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}
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/***********************************************************************
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*
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* ftp_transfertype()
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*
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* Set transfer type. We only deal with ASCII or BINARY so this function
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* sets one of them.
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*/
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static CURLcode ftp_transfertype(struct connectdata *conn,
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bool ascii)
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{
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@ -708,6 +751,13 @@ static CURLcode ftp_transfertype(struct connectdata *conn,
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return CURLE_OK;
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}
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/***********************************************************************
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*
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* ftp_getsize()
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*
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* Returns the file size (in bytes) of the given remote file.
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*/
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static
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CURLcode ftp_getsize(struct connectdata *conn, char *file,
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ssize_t *size)
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@ -850,10 +900,13 @@ ftp_pasv_verbose(struct connectdata *conn,
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#endif
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}
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/**********
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* PORT is the ftp client's way of telling the server that *WE* open a port
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* that we listen on an awaits the server to connect to. This is the opposite
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* of PASV.
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/***********************************************************************
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*
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* ftp_use_port()
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*
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* Send the proper PORT command. PORT is the ftp client's way of telling the
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* server that *WE* open a port that we listen on an awaits the server to
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* connect to. This is the opposite of PASV.
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*/
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static
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@ -1186,10 +1239,13 @@ CURLcode ftp_use_port(struct connectdata *conn)
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return CURLE_OK;
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}
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/**********
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* PASV is the ftp client's way of asking the server to open a second port
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* that we can connect to (for the data transfer). This is the opposite of
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* PORT.
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/***********************************************************************
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*
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* ftp_use_pasv()
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*
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* Send the PASV command. PASV is the ftp client's way of asking the server to
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* open a second port that we can connect to (for the data transfer). This is
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* the opposite of PORT.
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*/
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static
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@ -1314,6 +1370,13 @@ CURLcode ftp_use_pasv(struct connectdata *conn)
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return CURLE_OK;
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}
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/***********************************************************************
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*
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* ftp_perform()
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*
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* This is the actual DO function for FTP. Get a file/directory according to
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* the options previously setup.
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*/
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static
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CURLcode ftp_perform(struct connectdata *conn)
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@ -1772,9 +1835,15 @@ CURLcode ftp_perform(struct connectdata *conn)
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return CURLE_OK;
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}
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/* -- deal with the ftp server! -- */
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/* argument is already checked for validity */
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/***********************************************************************
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*
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* Curl_ftp()
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*
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* This function is registered as 'curl_do' function. It decodes the path
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* parts etc as a wrapper to the actual DO function (ftp_perform).
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*
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* The input argument is already checked for validity.
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*/
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CURLcode Curl_ftp(struct connectdata *conn)
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{
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CURLcode retcode;
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@ -1837,12 +1906,14 @@ CURLcode Curl_ftp(struct connectdata *conn)
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return retcode;
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}
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/*
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* Curl_ftpsendf() sends the formated string as a ftp command to a ftp server
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/***********************************************************************
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*
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* Curl_ftpsendf()
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*
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* Sends the formated string as a ftp command to a ftp server
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*
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* NOTE: we build the command in a fixed-length buffer, which sets length
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* restrictions on the command!
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*
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*/
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CURLcode Curl_ftpsendf(struct connectdata *conn,
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const char *fmt, ...)
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@ -1868,7 +1939,13 @@ CURLcode Curl_ftpsendf(struct connectdata *conn,
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return (bytes_written==write_len)?CURLE_OK:CURLE_WRITE_ERROR;
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}
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/***********************************************************************
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*
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* Curl_ftp_disconnect()
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*
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* Disconnect from an FTP server. Cleanup protocol-specific per-connection
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* resources
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*/
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CURLcode Curl_ftp_disconnect(struct connectdata *conn)
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{
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struct FTP *ftp= conn->proto.ftp;
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