ftp: get rid of the PPSENDF macro
The use of such a macro hides some of what's actually going on to the reader and is generally disapproved of in the project. Closes #5971
This commit is contained in:
Daniel Stenberg
Родитель
83cc966708
Коммит
cc372af1e9
306
lib/ftp.c
306
lib/ftp.c
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@ -137,14 +137,10 @@ static int ftp_domore_getsock(struct connectdata *conn, curl_socket_t *socks);
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static CURLcode ftp_doing(struct connectdata *conn,
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bool *dophase_done);
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static CURLcode ftp_setup_connection(struct connectdata *conn);
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static CURLcode init_wc_data(struct connectdata *conn);
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static CURLcode wc_statemach(struct connectdata *conn);
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static void wc_data_dtor(void *ptr);
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static CURLcode ftp_state_retr(struct connectdata *conn, curl_off_t filesize);
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static CURLcode ftp_readresp(curl_socket_t sockfd,
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struct pingpong *pp,
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int *ftpcode,
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@ -152,12 +148,6 @@ static CURLcode ftp_readresp(curl_socket_t sockfd,
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static CURLcode ftp_dophase_done(struct connectdata *conn,
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bool connected);
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/* easy-to-use macro: */
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#define PPSENDF(x,y,z) result = Curl_pp_sendf(x,y,z); \
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if(result) \
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return result
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/*
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* FTP protocol handler.
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*/
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@ -775,25 +765,22 @@ static void _state(struct connectdata *conn,
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static CURLcode ftp_state_user(struct connectdata *conn)
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{
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CURLcode result;
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/* send USER */
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PPSENDF(&conn->proto.ftpc.pp, "USER %s", conn->user?conn->user:"");
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state(conn, FTP_USER);
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conn->data->state.ftp_trying_alternative = FALSE;
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return CURLE_OK;
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CURLcode result = Curl_pp_sendf(&conn->proto.ftpc.pp, "USER %s",
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conn->user?conn->user:"");
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if(!result) {
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state(conn, FTP_USER);
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conn->data->state.ftp_trying_alternative = FALSE;
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}
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return result;
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}
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static CURLcode ftp_state_pwd(struct connectdata *conn)
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{
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CURLcode result;
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CURLcode result = Curl_pp_sendf(&conn->proto.ftpc.pp, "%s", "PWD");
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if(!result)
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state(conn, FTP_PWD);
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/* send PWD to discover our entry point */
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PPSENDF(&conn->proto.ftpc.pp, "%s", "PWD");
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state(conn, FTP_PWD);
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return CURLE_OK;
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return result;
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}
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/* For the FTP "protocol connect" and "doing" phases only */
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@ -881,16 +868,19 @@ static CURLcode ftp_state_cwd(struct connectdata *conn)
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where we ended up after login: */
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ftpc->cwdcount = 0; /* we count this as the first path, then we add one
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for all upcoming ones in the ftp->dirs[] array */
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PPSENDF(&conn->proto.ftpc.pp, "CWD %s", ftpc->entrypath);
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state(conn, FTP_CWD);
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result = Curl_pp_sendf(&ftpc->pp, "CWD %s", ftpc->entrypath);
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if(!result)
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state(conn, FTP_CWD);
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}
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else {
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if(ftpc->dirdepth) {
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ftpc->cwdcount = 1;
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/* issue the first CWD, the rest is sent when the CWD responses are
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received... */
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PPSENDF(&conn->proto.ftpc.pp, "CWD %s", ftpc->dirs[ftpc->cwdcount -1]);
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state(conn, FTP_CWD);
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result = Curl_pp_sendf(&ftpc->pp, "CWD %s",
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ftpc->dirs[ftpc->cwdcount -1]);
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if(!result)
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state(conn, FTP_CWD);
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}
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else {
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/* No CWD necessary */
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@ -1326,12 +1316,12 @@ static CURLcode ftp_state_use_pasv(struct connectdata *conn)
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modeoff = conn->bits.ftp_use_epsv?0:1;
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PPSENDF(&ftpc->pp, "%s", mode[modeoff]);
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ftpc->count1 = modeoff;
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state(conn, FTP_PASV);
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infof(conn->data, "Connect data stream passively\n");
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result = Curl_pp_sendf(&ftpc->pp, "%s", mode[modeoff]);
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if(!result) {
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ftpc->count1 = modeoff;
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state(conn, FTP_PASV);
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infof(conn->data, "Connect data stream passively\n");
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}
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return result;
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}
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@ -1364,23 +1354,23 @@ static CURLcode ftp_state_prepare_transfer(struct connectdata *conn)
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if(data->set.ftp_use_pret) {
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/* The user has requested that we send a PRET command
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to prepare the server for the upcoming PASV */
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if(!conn->proto.ftpc.file) {
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PPSENDF(&conn->proto.ftpc.pp, "PRET %s",
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data->set.str[STRING_CUSTOMREQUEST]?
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data->set.str[STRING_CUSTOMREQUEST]:
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(data->set.ftp_list_only?"NLST":"LIST"));
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}
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else if(data->set.upload) {
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PPSENDF(&conn->proto.ftpc.pp, "PRET STOR %s", conn->proto.ftpc.file);
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}
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else {
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PPSENDF(&conn->proto.ftpc.pp, "PRET RETR %s", conn->proto.ftpc.file);
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}
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state(conn, FTP_PRET);
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struct ftp_conn *ftpc = &conn->proto.ftpc;
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if(!conn->proto.ftpc.file)
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result = Curl_pp_sendf(&ftpc->pp, "PRET %s",
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data->set.str[STRING_CUSTOMREQUEST]?
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data->set.str[STRING_CUSTOMREQUEST]:
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(data->set.ftp_list_only?"NLST":"LIST"));
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else if(data->set.upload)
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result = Curl_pp_sendf(&ftpc->pp, "PRET STOR %s",
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conn->proto.ftpc.file);
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else
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result = Curl_pp_sendf(&ftpc->pp, "PRET RETR %s",
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conn->proto.ftpc.file);
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if(!result)
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state(conn, FTP_PRET);
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}
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else {
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else
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result = ftp_state_use_pasv(conn);
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}
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}
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return result;
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}
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@ -1396,9 +1386,9 @@ static CURLcode ftp_state_rest(struct connectdata *conn)
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/* Determine if server can respond to REST command and therefore
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whether it supports range */
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PPSENDF(&conn->proto.ftpc.pp, "REST %d", 0);
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state(conn, FTP_REST);
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result = Curl_pp_sendf(&ftpc->pp, "REST %d", 0);
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if(!result)
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state(conn, FTP_REST);
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}
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else
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result = ftp_state_prepare_transfer(conn);
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@ -1416,9 +1406,9 @@ static CURLcode ftp_state_size(struct connectdata *conn)
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/* if a "head"-like request is being made (on a file) */
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/* we know ftpc->file is a valid pointer to a file name */
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PPSENDF(&ftpc->pp, "SIZE %s", ftpc->file);
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state(conn, FTP_SIZE);
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result = Curl_pp_sendf(&ftpc->pp, "SIZE %s", ftpc->file);
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if(!result)
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state(conn, FTP_SIZE);
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}
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else
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result = ftp_state_rest(conn);
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@ -1485,10 +1475,8 @@ static CURLcode ftp_state_list(struct connectdata *conn)
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result = Curl_pp_sendf(&conn->proto.ftpc.pp, "%s", cmd);
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free(cmd);
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if(result)
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return result;
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state(conn, FTP_LIST);
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if(!result)
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state(conn, FTP_LIST);
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return result;
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}
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@ -1549,9 +1537,10 @@ static CURLcode ftp_state_mdtm(struct connectdata *conn)
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/* we have requested to get the modified-time of the file, this is a white
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spot as the MDTM is not mentioned in RFC959 */
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PPSENDF(&ftpc->pp, "MDTM %s", ftpc->file);
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result = Curl_pp_sendf(&ftpc->pp, "MDTM %s", ftpc->file);
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state(conn, FTP_MDTM);
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if(!result)
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state(conn, FTP_MDTM);
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}
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else
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result = ftp_state_type(conn);
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@ -1587,8 +1576,9 @@ static CURLcode ftp_state_ul_setup(struct connectdata *conn,
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if(data->state.resume_from < 0) {
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/* Got no given size to start from, figure it out */
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PPSENDF(&ftpc->pp, "SIZE %s", ftpc->file);
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state(conn, FTP_STOR_SIZE);
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result = Curl_pp_sendf(&ftpc->pp, "SIZE %s", ftpc->file);
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if(!result)
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state(conn, FTP_STOR_SIZE);
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return result;
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}
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@ -1650,10 +1640,10 @@ static CURLcode ftp_state_ul_setup(struct connectdata *conn,
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/* we've passed, proceed as normal */
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} /* resume_from */
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PPSENDF(&ftpc->pp, data->set.ftp_append?"APPE %s":"STOR %s",
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ftpc->file);
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state(conn, FTP_STOR);
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result = Curl_pp_sendf(&ftpc->pp, data->set.ftp_append?"APPE %s":"STOR %s",
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ftpc->file);
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if(!result)
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state(conn, FTP_STOR);
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return result;
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}
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@ -1711,7 +1701,9 @@ static CURLcode ftp_state_quote(struct connectdata *conn,
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else
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ftpc->count2 = 0; /* failure means cancel operation */
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PPSENDF(&ftpc->pp, "%s", cmd);
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result = Curl_pp_sendf(&ftpc->pp, "%s", cmd);
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if(result)
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return result;
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state(conn, instate);
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quote = TRUE;
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}
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@ -1740,12 +1732,14 @@ static CURLcode ftp_state_quote(struct connectdata *conn,
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the server terminates it, otherwise the client stops if the
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received byte count exceeds the reported file size. Set option
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CURLOPT_IGNORE_CONTENT_LENGTH to 1 to enable this behavior.*/
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PPSENDF(&ftpc->pp, "RETR %s", ftpc->file);
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state(conn, FTP_RETR);
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result = Curl_pp_sendf(&ftpc->pp, "RETR %s", ftpc->file);
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if(!result)
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state(conn, FTP_RETR);
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}
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else {
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PPSENDF(&ftpc->pp, "SIZE %s", ftpc->file);
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state(conn, FTP_RETR_SIZE);
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result = Curl_pp_sendf(&ftpc->pp, "SIZE %s", ftpc->file);
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if(!result)
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state(conn, FTP_RETR_SIZE);
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}
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}
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}
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@ -1782,10 +1776,12 @@ static CURLcode ftp_epsv_disable(struct connectdata *conn)
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conn->bits.ftp_use_epsv = FALSE;
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conn->data->state.errorbuf = FALSE; /* allow error message to get
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rewritten */
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PPSENDF(&conn->proto.ftpc.pp, "%s", "PASV");
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conn->proto.ftpc.count1++;
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/* remain in/go to the FTP_PASV state */
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state(conn, FTP_PASV);
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result = Curl_pp_sendf(&conn->proto.ftpc.pp, "%s", "PASV");
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if(!result) {
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conn->proto.ftpc.count1++;
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/* remain in/go to the FTP_PASV state */
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state(conn, FTP_PASV);
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}
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return result;
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}
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@ -2229,15 +2225,16 @@ static CURLcode ftp_state_retr(struct connectdata *conn,
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infof(data, "Instructs server to resume from offset %"
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CURL_FORMAT_CURL_OFF_T "\n", data->state.resume_from);
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PPSENDF(&ftpc->pp, "REST %" CURL_FORMAT_CURL_OFF_T,
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data->state.resume_from);
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state(conn, FTP_RETR_REST);
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result = Curl_pp_sendf(&ftpc->pp, "REST %" CURL_FORMAT_CURL_OFF_T,
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data->state.resume_from);
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if(!result)
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state(conn, FTP_RETR_REST);
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}
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else {
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/* no resume */
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PPSENDF(&ftpc->pp, "RETR %s", ftpc->file);
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state(conn, FTP_RETR);
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result = Curl_pp_sendf(&ftpc->pp, "RETR %s", ftpc->file);
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if(!result)
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state(conn, FTP_RETR);
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}
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return result;
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@ -2330,8 +2327,9 @@ static CURLcode ftp_state_rest_resp(struct connectdata *conn,
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result = CURLE_FTP_COULDNT_USE_REST;
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}
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else {
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PPSENDF(&ftpc->pp, "RETR %s", ftpc->file);
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state(conn, FTP_RETR);
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result = Curl_pp_sendf(&ftpc->pp, "RETR %s", ftpc->file);
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if(!result)
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state(conn, FTP_RETR);
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}
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break;
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}
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@ -2523,8 +2521,9 @@ static CURLcode ftp_state_loggedin(struct connectdata *conn)
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parameter of '0' to indicate that no buffering is taking place
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and the data connection should not be encapsulated.
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*/
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PPSENDF(&conn->proto.ftpc.pp, "PBSZ %d", 0);
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state(conn, FTP_PBSZ);
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result = Curl_pp_sendf(&conn->proto.ftpc.pp, "PBSZ %d", 0);
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if(!result)
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state(conn, FTP_PBSZ);
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}
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else {
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result = ftp_state_pwd(conn);
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@ -2546,8 +2545,9 @@ static CURLcode ftp_state_user_resp(struct connectdata *conn,
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if((ftpcode == 331) && (ftpc->state == FTP_USER)) {
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/* 331 Password required for ...
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(the server requires to send the user's password too) */
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PPSENDF(&ftpc->pp, "PASS %s", conn->passwd?conn->passwd:"");
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state(conn, FTP_PASS);
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result = Curl_pp_sendf(&ftpc->pp, "PASS %s", conn->passwd?conn->passwd:"");
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if(!result)
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state(conn, FTP_PASS);
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}
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else if(ftpcode/100 == 2) {
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/* 230 User ... logged in.
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@ -2556,8 +2556,10 @@ static CURLcode ftp_state_user_resp(struct connectdata *conn,
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}
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else if(ftpcode == 332) {
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if(data->set.str[STRING_FTP_ACCOUNT]) {
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PPSENDF(&ftpc->pp, "ACCT %s", data->set.str[STRING_FTP_ACCOUNT]);
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state(conn, FTP_ACCT);
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result = Curl_pp_sendf(&ftpc->pp, "ACCT %s",
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data->set.str[STRING_FTP_ACCOUNT]);
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if(!result)
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state(conn, FTP_ACCT);
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}
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else {
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failf(data, "ACCT requested but none available");
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@ -2573,11 +2575,13 @@ static CURLcode ftp_state_user_resp(struct connectdata *conn,
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if(conn->data->set.str[STRING_FTP_ALTERNATIVE_TO_USER] &&
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!conn->data->state.ftp_trying_alternative) {
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/* Ok, USER failed. Let's try the supplied command. */
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PPSENDF(&conn->proto.ftpc.pp, "%s",
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conn->data->set.str[STRING_FTP_ALTERNATIVE_TO_USER]);
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conn->data->state.ftp_trying_alternative = TRUE;
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state(conn, FTP_USER);
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result = CURLE_OK;
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result =
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Curl_pp_sendf(&ftpc->pp, "%s",
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conn->data->set.str[STRING_FTP_ALTERNATIVE_TO_USER]);
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if(!result) {
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conn->data->state.ftp_trying_alternative = TRUE;
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state(conn, FTP_USER);
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}
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}
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else {
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failf(data, "Access denied: %03d", ftpcode);
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@ -2679,15 +2683,12 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
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(int)data->set.ftpsslauth);
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return CURLE_UNKNOWN_OPTION; /* we don't know what to do */
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}
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PPSENDF(&ftpc->pp, "AUTH %s", ftpauth[ftpc->count1]);
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state(conn, FTP_AUTH);
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result = Curl_pp_sendf(&ftpc->pp, "AUTH %s", ftpauth[ftpc->count1]);
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if(!result)
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state(conn, FTP_AUTH);
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}
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else {
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else
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result = ftp_state_user(conn);
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if(result)
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return result;
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}
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break;
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case FTP_AUTH:
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@ -2722,9 +2723,6 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
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/* ignore the failure and continue */
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result = ftp_state_user(conn);
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}
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if(result)
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return result;
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break;
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case FTP_USER:
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@ -2737,10 +2735,11 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
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break;
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case FTP_PBSZ:
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PPSENDF(&ftpc->pp, "PROT %c",
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data->set.use_ssl == CURLUSESSL_CONTROL ? 'C' : 'P');
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state(conn, FTP_PROT);
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result =
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Curl_pp_sendf(&ftpc->pp, "PROT %c",
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data->set.use_ssl == CURLUSESSL_CONTROL ? 'C' : 'P');
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if(!result)
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state(conn, FTP_PROT);
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break;
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case FTP_PROT:
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@ -2757,14 +2756,12 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
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if(data->set.ftp_ccc) {
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/* CCC - Clear Command Channel
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*/
|
||||
PPSENDF(&ftpc->pp, "%s", "CCC");
|
||||
state(conn, FTP_CCC);
|
||||
result = Curl_pp_sendf(&ftpc->pp, "%s", "CCC");
|
||||
if(!result)
|
||||
state(conn, FTP_CCC);
|
||||
}
|
||||
else {
|
||||
else
|
||||
result = ftp_state_pwd(conn);
|
||||
if(result)
|
||||
return result;
|
||||
}
|
||||
break;
|
||||
|
||||
case FTP_CCC:
|
||||
|
|
@ -2772,16 +2769,12 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
|
|||
/* First shut down the SSL layer (note: this call will block) */
|
||||
result = Curl_ssl_shutdown(conn, FIRSTSOCKET);
|
||||
|
||||
if(result) {
|
||||
if(result)
|
||||
failf(conn->data, "Failed to clear the command channel (CCC)");
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
/* Then continue as normal */
|
||||
result = ftp_state_pwd(conn);
|
||||
if(result)
|
||||
return result;
|
||||
if(!result)
|
||||
/* Then continue as normal */
|
||||
result = ftp_state_pwd(conn);
|
||||
break;
|
||||
|
||||
case FTP_PWD:
|
||||
|
|
@ -2847,7 +2840,6 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
|
|||
systems. */
|
||||
|
||||
if(!ftpc->server_os && dir[0] != '/') {
|
||||
|
||||
result = Curl_pp_sendf(&ftpc->pp, "%s", "SYST");
|
||||
if(result) {
|
||||
free(dir);
|
||||
|
|
@ -2943,12 +2935,10 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
|
|||
if((ftpcode >= 400) && !ftpc->count2) {
|
||||
/* failure response code, and not allowed to fail */
|
||||
failf(conn->data, "QUOT command failed with %03d", ftpcode);
|
||||
return CURLE_QUOTE_ERROR;
|
||||
result = CURLE_QUOTE_ERROR;
|
||||
}
|
||||
result = ftp_state_quote(conn, FALSE, ftpc->state);
|
||||
if(result)
|
||||
return result;
|
||||
|
||||
else
|
||||
result = ftp_state_quote(conn, FALSE, ftpc->state);
|
||||
break;
|
||||
|
||||
case FTP_CWD:
|
||||
|
|
@ -2958,29 +2948,28 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
|
|||
ftpc->cwdcount && !ftpc->count2) {
|
||||
/* try making it */
|
||||
ftpc->count2++; /* counter to prevent CWD-MKD loops */
|
||||
PPSENDF(&ftpc->pp, "MKD %s", ftpc->dirs[ftpc->cwdcount - 1]);
|
||||
state(conn, FTP_MKD);
|
||||
result = Curl_pp_sendf(&ftpc->pp, "MKD %s",
|
||||
ftpc->dirs[ftpc->cwdcount - 1]);
|
||||
if(!result)
|
||||
state(conn, FTP_MKD);
|
||||
}
|
||||
else {
|
||||
/* return failure */
|
||||
failf(data, "Server denied you to change to the given directory");
|
||||
ftpc->cwdfail = TRUE; /* don't remember this path as we failed
|
||||
to enter it */
|
||||
return CURLE_REMOTE_ACCESS_DENIED;
|
||||
result = CURLE_REMOTE_ACCESS_DENIED;
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* success */
|
||||
ftpc->count2 = 0;
|
||||
if(++ftpc->cwdcount <= ftpc->dirdepth) {
|
||||
if(++ftpc->cwdcount <= ftpc->dirdepth)
|
||||
/* send next CWD */
|
||||
PPSENDF(&ftpc->pp, "CWD %s", ftpc->dirs[ftpc->cwdcount - 1]);
|
||||
}
|
||||
else {
|
||||
result = Curl_pp_sendf(&ftpc->pp, "CWD %s",
|
||||
ftpc->dirs[ftpc->cwdcount - 1]);
|
||||
else
|
||||
result = ftp_state_mdtm(conn);
|
||||
if(result)
|
||||
return result;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
|
|
@ -2988,11 +2977,14 @@ static CURLcode ftp_statemach_act(struct connectdata *conn)
|
|||
if((ftpcode/100 != 2) && !ftpc->count3--) {
|
||||
/* failure to MKD the dir */
|
||||
failf(data, "Failed to MKD dir: %03d", ftpcode);
|
||||
return CURLE_REMOTE_ACCESS_DENIED;
|
||||
result = CURLE_REMOTE_ACCESS_DENIED;
|
||||
}
|
||||
else {
|
||||
state(conn, FTP_CWD);
|
||||
/* send CWD */
|
||||
result = Curl_pp_sendf(&ftpc->pp, "CWD %s",
|
||||
ftpc->dirs[ftpc->cwdcount - 1]);
|
||||
}
|
||||
state(conn, FTP_CWD);
|
||||
/* send CWD */
|
||||
PPSENDF(&ftpc->pp, "CWD %s", ftpc->dirs[ftpc->cwdcount - 1]);
|
||||
break;
|
||||
|
||||
case FTP_MDTM:
|
||||
|
|
@ -3372,17 +3364,17 @@ static
|
|||
CURLcode ftp_sendquote(struct connectdata *conn, struct curl_slist *quote)
|
||||
{
|
||||
struct curl_slist *item;
|
||||
ssize_t nread;
|
||||
int ftpcode;
|
||||
CURLcode result;
|
||||
struct ftp_conn *ftpc = &conn->proto.ftpc;
|
||||
struct pingpong *pp = &ftpc->pp;
|
||||
|
||||
item = quote;
|
||||
while(item) {
|
||||
if(item->data) {
|
||||
ssize_t nread;
|
||||
char *cmd = item->data;
|
||||
bool acceptfail = FALSE;
|
||||
CURLcode result;
|
||||
int ftpcode = 0;
|
||||
|
||||
/* if a command starts with an asterisk, which a legal FTP command never
|
||||
can, the command will be allowed to fail without it causing any
|
||||
|
|
@ -3394,11 +3386,11 @@ CURLcode ftp_sendquote(struct connectdata *conn, struct curl_slist *quote)
|
|||
acceptfail = TRUE;
|
||||
}
|
||||
|
||||
PPSENDF(&conn->proto.ftpc.pp, "%s", cmd);
|
||||
|
||||
pp->response = Curl_now(); /* timeout relative now */
|
||||
|
||||
result = Curl_GetFTPResponse(&nread, conn, &ftpcode);
|
||||
result = Curl_pp_sendf(&ftpc->pp, "%s", cmd);
|
||||
if(!result) {
|
||||
pp->response = Curl_now(); /* timeout relative now */
|
||||
result = Curl_GetFTPResponse(&nread, conn, &ftpcode);
|
||||
}
|
||||
if(result)
|
||||
return result;
|
||||
|
||||
|
|
@ -3446,12 +3438,14 @@ static CURLcode ftp_nb_type(struct connectdata *conn,
|
|||
return ftp_state_type_resp(conn, 200, newstate);
|
||||
}
|
||||
|
||||
PPSENDF(&ftpc->pp, "TYPE %c", want);
|
||||
state(conn, newstate);
|
||||
result = Curl_pp_sendf(&ftpc->pp, "TYPE %c", want);
|
||||
if(!result) {
|
||||
state(conn, newstate);
|
||||
|
||||
/* keep track of our current transfer type */
|
||||
ftpc->transfertype = want;
|
||||
return CURLE_OK;
|
||||
/* keep track of our current transfer type */
|
||||
ftpc->transfertype = want;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
/***************************************************************************
|
||||
|
|
|
|||
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Ссылка в новой задаче