ftp: add 'list_only' to the transfer state struct

and rename it from 'ftp_list_only' since it is also used for SSH and
POP3. The state is updated internally for 'type=D' FTP URLs.

Added test case 1570 to verify.

Closes #6578

lib/ftp.c

@@ -1378,7 +1378,7 @@ static CURLcode ftp_state_prepare_transfer(struct Curl_easy *data)
         result = Curl_pp_sendf(data, &ftpc->pp, "PRET %s",
                                data->set.str[STRING_CUSTOMREQUEST]?
                                data->set.str[STRING_CUSTOMREQUEST]:
-                               (data->set.ftp_list_only?"NLST":"LIST"));
+                               (data->state.list_only?"NLST":"LIST"));
       else if(data->set.upload)
         result = Curl_pp_sendf(data, &ftpc->pp, "PRET STOR %s",
                                conn->proto.ftpc.file);
@@ -1485,7 +1485,7 @@ static CURLcode ftp_state_list(struct Curl_easy *data)
   cmd = aprintf("%s%s%s",
                 data->set.str[STRING_CUSTOMREQUEST]?
                 data->set.str[STRING_CUSTOMREQUEST]:
-                (data->set.ftp_list_only?"NLST":"LIST"),
+                (data->state.list_only?"NLST":"LIST"),
                 lstArg? " ": "",
                 lstArg? lstArg: "");
   free(lstArg);
@@ -3648,7 +3648,7 @@ static CURLcode ftp_do_more(struct Curl_easy *data, int *completep)
 
       if(result)
         ;
-      else if(data->set.ftp_list_only || !ftpc->file) {
+      else if(data->state.list_only || !ftpc->file) {
         /* The specified path ends with a slash, and therefore we think this
            is a directory that is requested, use LIST. But before that we
            need to set ASCII transfer mode. */
@@ -4356,7 +4356,7 @@ static CURLcode ftp_setup_connection(struct Curl_easy *data,
       break;
 
     case 'D': /* directory mode */
-      data->set.ftp_list_only = TRUE;
+      data->state.list_only = TRUE;
       break;
 
     case 'I': /* binary mode */

lib/pop3.c

@@ -571,7 +571,7 @@ static CURLcode pop3_perform_command(struct Curl_easy *data)
   const char *command = NULL;
 
   /* Calculate the default command */
-  if(pop3->id[0] == '\0' || data->set.ftp_list_only) {
+  if(pop3->id[0] == '\0' || data->set.list_only) {
     command = "LIST";
 
     if(pop3->id[0] != '\0')

lib/setopt.c

@@ -1157,7 +1157,7 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption option, va_list param)
      * An option that changes the command to one that asks for a list only, no
      * file info details. Used for FTP, POP3 and SFTP.
      */
-    data->set.ftp_list_only = (0 != va_arg(param, long)) ? TRUE : FALSE;
+    data->set.list_only = (0 != va_arg(param, long)) ? TRUE : FALSE;
     break;
 
   case CURLOPT_APPEND:

lib/transfer.c

@@ -1416,6 +1416,7 @@ CURLcode Curl_pretransfer(struct Curl_easy *data)
   }
 
   data->state.prefer_ascii = data->set.prefer_ascii;
+  data->state.list_only = data->set.list_only;
   data->state.httpreq = data->set.method;
   data->change.url = data->set.str[STRING_SET_URL];
 

lib/urldata.h

@@ -1468,6 +1468,7 @@ struct UrlState {
   BIT(previouslypending); /* this transfer WAS in the multi->pending queue */
   BIT(cookie_engine);
   BIT(prefer_ascii);   /* ASCII rather than binary */
+  BIT(list_only);      /* list directory contents */
 };
 
 
@@ -1807,7 +1808,7 @@ struct UserDefined {
   BIT(tunnel_thru_httpproxy); /* use CONNECT through a HTTP proxy */
   BIT(prefer_ascii);     /* ASCII rather than binary */
   BIT(remote_append);    /* append, not overwrite, on upload */
-  BIT(ftp_list_only);    /* switch FTP command for listing directories */
+  BIT(list_only);        /* list directory */
 #ifndef CURL_DISABLE_FTP
   BIT(ftp_use_port);     /* use the FTP PORT command */
   BIT(ftp_use_epsv);     /* if EPSV is to be attempted or not */

lib/vssh/libssh.c

@@ -1413,7 +1413,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block)
         sshc->readdir_longentry = sshc->readdir_attrs->longname;
         sshc->readdir_len = strlen(sshc->readdir_filename);
 
-        if(data->set.ftp_list_only) {
+        if(data->set.list_only) {
           char *tmpLine;
 
           tmpLine = aprintf("%s\n", sshc->readdir_filename);

lib/vssh/libssh2.c

@@ -2143,7 +2143,7 @@ static CURLcode ssh_statemach_act(struct Curl_easy *data, bool *block)
         readdir_len = (size_t) rc;
         sshp->readdir_filename[readdir_len] = '\0';
 
-        if(data->set.ftp_list_only) {
+        if(data->set.list_only) {
           result = Curl_client_write(data, CLIENTWRITE_BODY,
                                      sshp->readdir_filename,
                                      readdir_len);

lib/vssh/wolfssh.c

@@ -859,7 +859,7 @@ static CURLcode wssh_statemach_act(struct Curl_easy *data, bool *block)
         result = CURLE_OK;
         while(name) {
           char *line = aprintf("%s\n",
-                               data->set.ftp_list_only ?
+                               data->set.list_only ?
                                name->fName : name->lName);
           if(line == NULL) {
             state(data, SSH_SFTP_CLOSE);

tests/data/Makefile.inc

@@ -187,7 +187,7 @@ test1540 \
 \
 test1550 test1551 test1552 test1553 test1554 test1555 test1556 test1557 \
 test1558 test1559 test1560 test1561 test1562 test1563 test1564 test1565 \
-test1566 test1567 test1568 test1569 \
+test1566 test1567 test1568 test1569 test1570 \
 \
 test1590 test1591 test1592 test1593 test1594 test1595 test1596 \
 \

tests/data/test1570

@@ -0,0 +1,73 @@
+<testcase>
+<info>
+<keywords>
+FTP
+PASV
+RETR
+</keywords>
+</info>
+# Server-side
+<reply>
+<data nocheck="yes">
+data
+    to
+      see
+that FTP
+works
+  so does it?
+</data>
+<servercmd>
+REPLY EPSV 500 no such command
+</servercmd>
+</reply>
+
+# Client-side
+<client>
+<server>
+ftp
+</server>
+ <name>
+FTP first type=D then regular URL
+ </name>
+<tool>
+lib1569
+</tool>
+<command>
+"ftp://%HOSTIP:%FTPPORT/1570;type=D" ftp://%HOSTIP:%FTPPORT/1570
+</command>
+
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+<protocol>
+USER anonymous
+PASS ftp@example.com
+PWD
+EPSV
+PASV
+TYPE A
+NLST
+PASV
+TYPE I
+SIZE 1570
+RETR 1570
+QUIT
+</protocol>
+</verify>
+<stdout>
+data
+    to
+      see
+that FTP
+works
+  so does it?
+data
+    to
+      see
+that FTP
+works
+  so does it?
+</stdout>
+
+</testcase>