Directory listing code for new Portable FTP(Patch SET-2)

net/ftp/ftp_directory_parser.cc

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Version: MPL 1.1/GPL 2.0/LGPL 2.1
+//
+// The contents of this file are subject to the Mozilla Public License Version
+// 1.1 (the "License"); you may not use this file except in compliance with
+// the License. You may obtain a copy of the License at
+// http://www.mozilla.org/MPL/
+//
+// Software distributed under the License is distributed on an "AS IS" basis,
+// WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+// for the specific language governing rights and limitations under the
+// License.
+//
+// The Original Code is mozilla.org Code.
+//
+// The Initial Developer of the Original Code is
+// Cyrus Patel <cyp@fb14.uni-mainz.de>.
+// Portions created by the Initial Developer are Copyright (C) 2002
+// the Initial Developer. All Rights Reserved.
+//
+// Contributor(s):
+// Doug Turner <dougt@netscape.com>
+//
+// Alternatively, the contents of this file may be used under the terms of
+// either the GNU General Public License Version 2 or later (the "GPL"), or
+// the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+// in which case the provisions of the GPL or the LGPL are applicable instead
+// of those above. If you wish to allow use of your version of this file only
+// under the terms of either the GPL or the LGPL, and not to allow others to
+// use your version of this file under the terms of the MPL, indicate your
+// decision by deleting the provisions above and replace them with the notice
+// and other provisions required by the GPL or the LGPL. If you do not delete
+// the provisions above, a recipient may use your version of this file under
+// the terms of any one of the MPL, the GPL or the LGPL.
+
+// Derived from:
+// mozilla/netwerk/streamconv/converters/ParseFTPList.cpp revision 1.10
+
+#include "net/ftp/ftp_directory_parser.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <time.h>
+
+#include "build/build_config.h"
+#include "base/basictypes.h"
+#include "base/string_util.h"
+
+// #undef anything you don't want to support
+#define SUPPORT_LSL   // /bin/ls -l and dozens of variations therof
+#define SUPPORT_DLS   // /bin/dls format (very, Very, VERY rare)
+#define SUPPORT_EPLF  // Extraordinarily Pathetic List Format
+#define SUPPORT_DOS   // WinNT server in 'site dirstyle' dos
+#define SUPPORT_VMS   // VMS (all: MultiNet, UCX, CMU-IP)
+#define SUPPORT_CMS   // IBM VM/CMS,VM/ESA (z/VM and LISTING forms)
+#define SUPPORT_OS2   // IBM TCP/IP for OS/2 - FTP Server
+#define SUPPORT_W16   // win16 hosts: SuperTCP or NetManage Chameleon
+
+namespace net {
+
+LineType ParseFTPLine(const char *line,
+                      struct ListState *state,
+                      struct ListResult *result) {
+  unsigned int carry_buf_len;
+  unsigned int linelen, pos;
+  const char *p;
+
+  if (!line || !state || !result)
+    return FTP_TYPE_JUNK;
+
+  memset(result, 0, sizeof(*result));
+
+  state->numlines++;
+
+  // Carry buffer is only valid from one line to the next.
+  carry_buf_len = state->carry_buf_len;
+  state->carry_buf_len = 0;
+
+  linelen = 0;
+
+  // Strip leading whitespace.
+  while (*line == ' ' || *line == '\t')
+    line++;
+
+  // Line is terminated at first '\0' or '\n'.
+  p = line;
+  while (*p && *p != '\n')
+    p++;
+  linelen = p - line;
+
+  if (linelen > 0 && *p == '\n' && *(p-1) == '\r')
+    linelen--;
+
+  // DON'T strip trailing whitespace.
+  if (linelen > 0) {
+    static const char *month_names = "JanFebMarAprMayJunJulAugSepOctNovDec";
+    const char *tokens[16];
+    unsigned int toklen[(sizeof(tokens)/sizeof(tokens[0]))];
+    unsigned int linelen_sans_wsp;
+    unsigned int numtoks = 0;
+    unsigned int tokmarker = 0;
+    unsigned int month_num = 0;
+    char tbuf[4];
+    int lstyle = 0;
+
+    // VMS long filename carryover buffer.
+    if (carry_buf_len) {
+      tokens[0] = state->carry_buf;
+      toklen[0] = carry_buf_len;
+      numtoks++;
+    }
+
+    pos = 0;
+    while (pos < linelen && numtoks < (sizeof(tokens)/sizeof(tokens[0]))) {
+      while (pos < linelen &&
+          (line[pos] == ' ' || line[pos] == '\t' || line[pos] == '\r'))
+        pos++;
+      if (pos < linelen) {
+        tokens[numtoks] = &line[pos];
+        while (pos < linelen &&
+            (line[pos] != ' ' && line[pos] != '\t' && line[pos] != '\r'))
+          pos++;
+        if (tokens[numtoks] != &line[pos]) {
+          toklen[numtoks] = (&line[pos] - tokens[numtoks]);
+          numtoks++;
+        }
+      }
+    }
+    linelen_sans_wsp = &(tokens[numtoks-1][toklen[numtoks-1]]) - tokens[0];
+    if (numtoks == (sizeof(tokens)/sizeof(tokens[0]))) {
+      pos = linelen;
+      while (pos > 0 && (line[pos-1] == ' ' || line[pos-1] == '\t'))
+        pos--;
+      linelen_sans_wsp = pos;
+    }
+
+#if defined(SUPPORT_EPLF)
+    // EPLF handling must come somewhere before /bin/dls handling.
+    if (!lstyle && (!state->lstyle || state->lstyle == 'E')) {
+      if (*line == '+' && linelen > 4 && numtoks >= 2) {
+        pos = 1;
+        while (pos < (linelen-1)) {
+          p = &line[pos++];
+          if (*p == '/')
+            result->fe_type = FTP_TYPE_DIRECTORY;  // Its a dir.
+          else if (*p == 'r')
+            result->fe_type = FTP_TYPE_FILE;
+          else if (*p == 'm') {
+            if (isdigit(line[pos])) {
+              while (pos < linelen && isdigit(line[pos]))
+                pos++;
+              if (pos < linelen && line[pos] == ',') {
+                uint64 seconds = 0;
+                seconds = StringToInt64(p + 1);
+                time_t tim = static_cast<time_t>(seconds);
+                // TODO(ibrar): Yet thought required here
+#if defined(OS_WIN)
+                gmtime_s(&result->fe_time, &tim);
+#elif defined(OS_POSIX)
+                gmtime_r(&tim, &result->fe_time);
+#endif
+              }
+            }
+          } else if (*p == 's') {
+              if (isdigit(line[pos])) {
+                while (pos < linelen && isdigit(line[pos]))
+                  pos++;
+                if (pos < linelen && line[pos] == ',' &&
+                    ((&line[pos]) - (p+1)) <
+                    static_cast<int>(sizeof(result->fe_size) - 1)) {
+                  memcpy(result->fe_size, p + 1,
+                      (unsigned)(&line[pos] - (p + 1)));
+                  result->fe_size[(&line[pos] - (p+1))] = '\0';
+                }
+              }
+          } else if (isalpha(*p)) {
+              while (pos < linelen && *++p != ',')
+                pos++;
+            } else if (*p != '\t' || (p + 1) != tokens[1]) {
+                break;  // Its not EPLF after all.
+            } else {
+                state->parsed_one = 1;
+                state->lstyle = lstyle = 'E';
+
+                p = &(line[linelen_sans_wsp]);
+                result->fe_fname = tokens[1];
+                result->fe_fnlen = p - tokens[1];
+
+                // Access denied.
+                if (!result->fe_type) {
+                  result->fe_type = FTP_TYPE_FILE;
+                  // is assuming 'f'ile correct?
+                  return FTP_TYPE_JUNK;  // NO! junk it.
+                }
+                return result->fe_type;
+              }
+              if (pos >= (linelen-1) || line[pos] != ',')
+                break;
+              pos++;
+        }  // while (pos < linelen)
+        memset(result, 0, sizeof(*result));
+      }  // if (*line == '+' && linelen > 4 && numtoks >= 2).
+    }  // if (!lstyle && (!state->lstyle || state->lstyle == 'E')).
+#endif  // SUPPORT_EPLF
+
+#if defined(SUPPORT_VMS)
+    // try VMS Multinet/UCX/CMS server
+    if (!lstyle && (!state->lstyle || state->lstyle == 'V')) {
+      // Legal characters in a VMS file/dir spec are [A-Z0-9$.-_~].
+      // '$' cannot begin a filename and `-' cannot be used as the first
+      // or last character. '.' is only valid as a directory separator
+      // and <file>.<type> separator. A canonical filename spec might look
+      // like this: DISK$VOL:[DIR1.DIR2.DIR3]FILE.TYPE;123
+      // All VMS FTP servers LIST in uppercase.
+      // We need to be picky about this in order to support
+      // multi-line listings correctly.
+      if ((!state->parsed_one &&
+        numtoks == 1) || (numtoks == 2 && toklen[0] == 9 &&
+        memcmp(tokens[0], "Directory", 9) == 0)) {
+          // If no dirstyle has been detected yet, and this line is a
+          // VMS list's dirname, then turn on VMS dirstyle.
+          // eg "ACA:[ANONYMOUS]", "DISK$FTP:[ANONYMOUS]", "SYS$ANONFTP:"
+          p = tokens[0];
+          pos = toklen[0];
+          if (numtoks == 2) {
+            p = tokens[1];
+            pos = toklen[1];
+          }
+          pos--;
+          if (pos >= 3) {
+            while (pos > 0 && p[pos] != '[') {
+              pos--;
+              if (p[pos] == '-' || p[pos] == '$') {
+                if (pos == 0 || p[pos-1] == '[' || p[pos-1] == '.' ||
+                  (p[pos] == '-' && (p[pos+1] == ']' || p[pos+1] == '.')))
+                  break;
+              } else if (p[pos] != '.' && p[pos] != '~' &&
+                  !isdigit(p[pos]) && !isalpha(p[pos])) {
+                    break;
+                } else if (isalpha(p[pos]) && p[pos] != toupper(p[pos])) {
+                    break;
+                }
+            }
+            if (pos > 0) {
+              pos--;
+              if (p[pos] != ':' || p[pos+1] != '[')
+                pos = 0;
+            }
+          }
+          if (pos > 0 && p[pos] == ':') {
+            while (pos > 0) {
+              pos--;
+              if (p[pos] != '$' && p[pos] != '_' && p[pos] != '-' &&
+                p[pos] != '~' && !isdigit(p[pos]) && !isalpha(p[pos]))
+                break;
+              else if (isalpha(p[pos]) && p[pos] != toupper(p[pos]))
+                break;
+            }
+            if (pos == 0) {
+              state->lstyle = 'V';
+              return FTP_TYPE_JUNK;  // Its junk.
+            }
+          }
+          // fallthrough
+      } else if ((tokens[0][toklen[0]-1]) != ';') {
+          if (numtoks == 1 && (state->lstyle == 'V' && !carry_buf_len))
+            lstyle = 'V';
+          else if (numtoks < 4);
+          else if (toklen[1] >= 10 && memcmp(tokens[1], "%RMS-E-PRV", 10) == 0)
+            lstyle = 'V';
+          else if ((&line[linelen] - tokens[1]) >= 22 &&
+            memcmp(tokens[1], "insufficient privilege", 22) == 0)
+            lstyle = 'V';
+          else if (numtoks != 4 && numtoks != 6) {
+          } else if (numtoks == 6 && (
+              toklen[5] < 4 || *tokens[5] != '(' ||
+              (tokens[5][toklen[5]-1]) != ')')) {
+          } else if ((toklen[2] == 10 || toklen[2] == 11) &&
+              (tokens[2][toklen[2]-5]) == '-' &&
+              (tokens[2][toklen[2]-9]) == '-' &&
+              (((toklen[3] == 4 || toklen[3] == 5 || toklen[3] == 7 ||
+              toklen[3] == 8) &&
+              (tokens[3][toklen[3]-3]) == ':') ||
+              ((toklen[3] == 10 || toklen[3] == 11) &&
+              (tokens[3][toklen[3]-3]) == '.')) &&
+              //  Time in [H]H:MM[:SS[.CC]] format.
+              isdigit(*tokens[1]) &&  // size
+              isdigit(*tokens[2]) &&  // date
+              isdigit(*tokens[3])  // time
+              ) {
+            lstyle = 'V';
+          }
+          if (lstyle == 'V') {
+            // MultiNet FTP:
+            // LOGIN.COM;2 1 4-NOV-1994 04:09 [ANONYMOUS] (RWE,RWE,,)
+            // PUB.DIR;1 1 27-JAN-1994 14:46 [ANONYMOUS] (RWE,RWE,RE,RWE)
+            // README.FTP;1 %RMS-E-PRV, insufficient privilege or file
+            // protection violation
+            // ROUSSOS.DIR;1 1 27-JAN-1994 14:48 [CS,ROUSSOS] (RWE,RWE,RE,R)
+            // S67-50903.JPG;1 328 22-SEP-1998 16:19 [ANONYMOUS] (RWED,RWED,,)
+            // UCX FTP:
+            // CII-MANUAL.TEX;1 213/216 29-JAN-1996 03:33:12[ANONYMOU,ANONYMOUS]
+            // (RWED,RWED,,)
+            // CMU/VMS-IP FTP
+            // [VMSSERV.FILES]ALARM.DIR;1 1/3 5-MAR-1993 18:09
+            // TCPware FTP
+            // FOO.BAR;1 4 5-MAR-1993 18:09:01.12
+            // Long filename example:
+            // THIS-IS-A-LONG-VMS-FILENAME.AND-THIS-IS-A-LONG-VMS-FILETYPE\r\n
+            // 213[/nnn] 29-JAN-1996 03:33[:nn] [ANONYMOU,ANONYMOUS] (RWED,RWED,,)
+            tokmarker = 0;
+            p = tokens[0];
+            pos = 0;
+            if (*p == '[' && toklen[0] >= 4) {
+              if (p[1] != ']') {
+                p++;
+                pos++;
+              }
+              while (lstyle && pos < toklen[0] && *p != ']') {
+                if (*p != '$' && *p != '.' && *p != '_' && *p != '-' &&
+                  *p != '~' && !isdigit(*p) && !isalpha(*p))
+                  lstyle = 0;
+                pos++;
+                p++;
+              }
+              if (lstyle && pos < (toklen[0]-1) && *p == ']') {
+                pos++;
+                p++;
+                tokmarker = pos;  // length of leading "[DIR1.DIR2.etc]"
+              }
+            }
+            while (lstyle && pos < toklen[0] && *p != ';') {
+              if (*p != '$' && *p != '.' && *p != '_' && *p != '-' &&
+                *p != '~' && !isdigit(*p) && !isalpha(*p))
+                lstyle = 0;
+              else if (isalpha(*p) && *p != toupper(*p))
+                lstyle = 0;
+              p++;
+              pos++;
+            }
+            if (lstyle && *p == ';') {
+              if (pos == 0 || pos == (toklen[0]-1))
+                lstyle = 0;
+              for (pos++;lstyle && pos < toklen[0];pos++) {
+                if (!isdigit(tokens[0][pos]))
+                  lstyle = 0;
+              }
+            }
+            pos = (p - tokens[0]);  // => fnlength sans ";####"
+            pos -= tokmarker;  // => fnlength sans "[DIR1.DIR2.etc]"
+            p = &(tokens[0][tokmarker]);  // offset of basename.
+
+            if (!lstyle || pos > 80) {
+              // VMS filenames can't be longer than that.
+              lstyle = 0;
+            } else if (numtoks == 1) {
+                // If VMS has been detected and there is only one token and
+                // that token was a VMS filename then this is a multiline
+                // VMS LIST entry.
+                if (pos >= (sizeof(state->carry_buf) - 1))
+                  pos = (sizeof(state->carry_buf) - 1);  // Shouldn't happen.
+                memcpy(state->carry_buf, p, pos);
+                state->carry_buf_len = pos;
+                return FTP_TYPE_JUNK;  // Tell caller to treat as junk.
+            } else if (isdigit(*tokens[1])) {  // not no-privs message.
+                for (pos = 0; lstyle && pos < (toklen[1]); pos++) {
+                  if (!isdigit((tokens[1][pos])) && (tokens[1][pos]) != '/')
+                    lstyle = 0;
+                }
+                if (lstyle && numtoks > 4) {  // Multinet or UCX but not CMU.
+                  for (pos = 1; lstyle && pos < (toklen[5]-1); pos++) {
+                    p = &(tokens[5][pos]);
+                    if (*p != 'R' && *p != 'W' && *p != 'E' &&
+                        *p != 'D' && *p != ',')
+                      lstyle = 0;
+                  }
+                }
+              }
+          }  // passed initial tests
+      }  // else if ((tokens[0][toklen[0]-1]) != ';')
+
+      if (lstyle == 'V') {
+        state->parsed_one = 1;
+        state->lstyle = lstyle;
+        if (isdigit(*tokens[1])) {  // not permission denied etc
+          // strip leading directory name
+          if (*tokens[0] == '[') {  // CMU server
+            pos = toklen[0] - 1;
+            p = tokens[0] + 1;
+            while (*p != ']') {
+              p++;
+              pos--;
+            }
+            toklen[0] = --pos;
+            tokens[0] = ++p;
+          }
+          pos = 0;
+          while (pos < toklen[0] && (tokens[0][pos]) != ';')
+            pos++;
+
+          result->fe_cinfs = 1;
+          result->fe_type = FTP_TYPE_FILE;
+          result->fe_fname = tokens[0];
+          result->fe_fnlen = pos;
+
+          if (pos > 4) {
+            p = &(tokens[0][pos-4]);
+            if (p[0] == '.' && p[1] == 'D' && p[2] == 'I' && p[3] == 'R') {
+              result->fe_fnlen -= 4;
+              result->fe_type = FTP_TYPE_DIRECTORY;
+            }
+          }
+
+          if (result->fe_type != FTP_TYPE_DIRECTORY) {
+            // #### or used/allocated form. If used/allocated form, then
+            // 'used' is the size in bytes if and only if 'used'<=allocated.
+            // If 'used' is size in bytes then it can be > 2^32
+            // If 'used' is not size in bytes then it is size in blocks.
+            pos = 0;
+            while (pos < toklen[1] && (tokens[1][pos]) != '/')
+              pos++;
+            // size requires multiplication by blocksize.
+            //
+            // We could assume blocksize is 512 (like Lynx does) and
+            // shift by 9, but that might not be right. Even if it
+            // were, doing that wouldn't reflect what the file's
+            // real size was. The sanest thing to do is not use the
+            // LISTing's filesize, so we won't (like ftpmirror).
+            //
+            // ulltoa(((uint64)fsz)<<9, result->fe_size, 10);
+            //
+            // A block is always 512 bytes on OpenVMS, compute size.
+            // So its rounded up to the next block, so what, its better
+            // than not showing the size at all.
+            // A block is always 512 bytes on OpenVMS, compute size.
+            // So its rounded up to the next block, so what, its better
+            // than not showing the size at all.
+            uint64 size = strtoul(tokens[1], NULL, 10) * 512;
+#if defined(OS_WIN)
+            sprintf_s(result->fe_size, sizeof(result->fe_size), "%lld", size);
+#elif defined(OS_POSIX)
+            snprintf(result->fe_size, sizeof(result->fe_size), "%lld", size);
+#endif
+          }  // if (result->fe_type != FTP_TYPE_DIRECTORY)
+
+          p = tokens[2] + 2;
+          if (*p == '-')
+            p++;
+          tbuf[0] = p[0];
+          tbuf[1] = tolower(p[1]);
+          tbuf[2] = tolower(p[2]);
+          month_num = 0;
+          for (pos = 0; pos < (12*3); pos += 3) {
+            if (tbuf[0] == month_names[pos+0] &&
+              tbuf[1] == month_names[pos + 1] &&
+              tbuf[2] == month_names[pos + 2])
+              break;
+            month_num++;
+          }
+          if (month_num >= 12)
+            month_num = 0;
+          result->fe_time.tm_mon  = month_num;
+          result->fe_time.tm_mday = StringToInt(tokens[2]);
+          result->fe_time.tm_year = StringToInt(p + 4);
+          // NSPR wants year as XXXX
+
+          p = tokens[3] + 2;
+          if (*p == ':')
+            p++;
+          if (p[2] == ':')
+            result->fe_time.tm_sec = StringToInt(p + 3);
+          result->fe_time.tm_hour = StringToInt(tokens[3]);
+          result->fe_time.tm_min = StringToInt(p);
+          return result->fe_type;
+        }  // if (isdigit(*tokens[1]))
+        return FTP_TYPE_JUNK;  // junk
+      }  // if (lstyle == 'V')
+    }  // if (!lstyle && (!state->lstyle || state->lstyle == 'V'))
+#endif  // SUPPORT_VMS
+
+#if defined(SUPPORT_CMS)
+    // Virtual Machine/Conversational Monitor System (IBM Mainframe)
+    if (!lstyle && (!state->lstyle || state->lstyle == 'C')) {  // VM/CMS
+      // LISTing according to mirror.pl
+      // Filename FileType Fm Format Lrecl Records Blocks Date Time
+      // LASTING GLOBALV A1 V 41 21 1 9/16/91 15:10:32
+      // J43401 NETLOG A0 V 77 1 1 9/12/91 12:36:04
+      // PROFILE EXEC A1 V 17 3 1 9/12/91 12:39:07
+      // DIRUNIX SCRIPT A1 V 77 1216 17 1/04/93 20:30:47
+      // MAIL PROFILE A2 F 80 1 1 10/14/92 16:12:27
+      // BADY2K TEXT A0 V 1 1 1 1/03/102 10:11:12
+      // AUTHORS A1 DIR - - - 9/20/99 10:31:11
+      //
+      // LISTing from vm.marist.edu and vm.sc.edu
+      // 220-FTPSERVE IBM VM Level 420 at VM.MARIST.EDU, 04:58:12 EDT WEDNESDAY 2002-07-10
+      // AUTHORS DIR - - - 1999-09-20 10:31:11 -
+      // HARRINGTON DIR - - - 1997-02-12 15:33:28 -
+      // PICS DIR - - - 2000-10-12 15:43:23 -
+      // SYSFILE DIR - - - 2000-07-20 17:48:01 -
+      // WELCNVT EXEC V 72 9 1 1999-09-20 17:16:18 -
+      // WELCOME EREADME F 80 21 1 1999-12-27 16:19:00 -
+      // WELCOME README V 82 21 1 1999-12-27 16:19:04 -
+      // README ANONYMOU V 71 26 1 1997-04-02 12:33:20 TCP291
+      // README ANONYOLD V 71 15 1 1995-08-25 16:04:27 TCP291
+      if (numtoks >= 7 && (toklen[0]+toklen[1]) <= 16) {
+        for (pos = 1; !lstyle && (pos+5) < numtoks; pos++) {
+          p = tokens[pos];
+          if ((toklen[pos] == 1 && (*p == 'F' || *p == 'V')) ||
+            (toklen[pos] == 3 && *p == 'D' && p[1] == 'I' && p[2] == 'R')) {
+              if (toklen[pos+5] == 8 && (tokens[pos+5][2]) == ':' &&
+                (tokens[pos+5][5]) == ':') {
+                  p = tokens[pos+4];
+                  if ((toklen[pos+4] == 10 && p[4] == '-' && p[7] == '-') ||
+                      (toklen[pos+4] >= 7 && toklen[pos+4] <= 9 &&
+                      p[((p[1] != '/')?(2):(1))] == '/' &&
+                      p[((p[1] != '/')?(5):(4))] == '/')) {
+                    // Y2K bugs possible ("7/06/102" or "13/02/101")
+                    if ((*tokens[pos+1] == '-' &&
+                      *tokens[pos+2] == '-' &&
+                      *tokens[pos+3] == '-') ||
+                      (isdigit(*tokens[pos+1]) &&
+                      isdigit(*tokens[pos+2]) &&
+                      isdigit(*tokens[pos+3]))) {
+                        lstyle = 'C';
+                        tokmarker = pos;
+                    }  // if ((*tokens[pos+1] == '-' &&
+                  }  // if ((toklen[pos+4] == 10
+              }  // toklen[pos+5] == 8
+          }  // if ((toklen[pos] == 1 && (*p == 'F'
+        }  // for (pos = 1; !lstyle && (pos+5) < numtoks; pos++)
+      }  // if (numtoks >= 7)
+      // extra checking if first pass
+      if (lstyle && !state->lstyle) {
+        for (pos = 0, p = tokens[0]; lstyle && pos < toklen[0]; pos++, p++) {
+          if (isalpha(*p) && toupper(*p) != *p)
+            lstyle = 0;
+        }
+        for (pos = tokmarker+1; pos <= tokmarker+3; pos++) {
+          if (!(toklen[pos] == 1 && *tokens[pos] == '-')) {
+            for (p = tokens[pos]; lstyle && p < (tokens[pos] + toklen[pos]);
+                p++) {
+              if (!isdigit(*p))
+                lstyle = 0;
+            }  // for (p = tokens[pos]; lstyle
+          }  // if (!(toklen[pos] == 1
+        }  // for (pos = tokmarker+1;
+        for (pos = 0, p = tokens[tokmarker+4];
+            lstyle && pos < toklen[tokmarker+4]; pos++, p++) {
+          if (*p == '/') {
+            // There may be Y2K bugs in the date. Don't simplify to
+            // pos != (len-3) && pos != (len-6) like time is done.
+            if ((tokens[tokmarker + 4][1]) == '/') {
+              if (pos != 1 && pos != 4)
+              lstyle = 0;
+            } else if (pos != 2 && pos != 5) {
+              lstyle = 0;
+            }
+          } else if (*p != '-' && !isdigit(*p)) {
+            lstyle = 0;
+          } else if (*p == '-' && pos != 4 && pos != 7) {
+            lstyle = 0;
+          }
+        }
+        for (pos = 0, p = tokens[tokmarker+5];
+          lstyle && pos < toklen[tokmarker+5]; pos++, p++) {
+          if (*p != ':' && !isdigit(*p))
+            lstyle = 0;
+          else if (*p == ':' && pos != (toklen[tokmarker+5]-3)
+            && pos != (toklen[tokmarker+5]-6))
+            lstyle = 0;
+        }
+      }  // if (lstyle && !state->lstyle)
+
+      if (lstyle == 'C') {
+        state->parsed_one = 1;
+        state->lstyle = lstyle;
+
+        p = tokens[tokmarker+4];
+        if (toklen[tokmarker+4] == 10) {  // newstyle: YYYY-MM-DD format
+          result->fe_time.tm_year = StringToInt(p + 0) - 1900;
+          result->fe_time.tm_mon  = StringToInt(p + 5) - 1;
+          result->fe_time.tm_mday = StringToInt(p + 8);
+        } else {  // oldstyle: [M]M/DD/YY format
+            pos = toklen[tokmarker + 4];
+            result->fe_time.tm_mon  = StringToInt(p) - 1;
+            result->fe_time.tm_mday = StringToInt((p + pos)-5);
+            result->fe_time.tm_year = StringToInt((p + pos)-2);
+            if (result->fe_time.tm_year < 70)
+              result->fe_time.tm_year += 100;
+        }
+        p = tokens[tokmarker + 5];
+        pos = toklen[tokmarker + 5];
+        result->fe_time.tm_hour = StringToInt(p);
+        result->fe_time.tm_min = StringToInt((p + pos) - 5);
+        result->fe_time.tm_sec = StringToInt((p + pos) - 2);
+
+        result->fe_cinfs = 1;
+        result->fe_fname = tokens[0];
+        result->fe_fnlen = toklen[0];
+        result->fe_type = FTP_TYPE_FILE;
+
+        p = tokens[tokmarker];
+        if (toklen[tokmarker] == 3 && *p == 'D' && p[1] == 'I' && p[2] == 'R')
+          result->fe_type = FTP_TYPE_DIRECTORY;
+
+        if ((toklen[tokmarker+4] == 10 && tokmarker > 1) ||
+            (toklen[tokmarker+4] != 10 && tokmarker > 2)) {
+          // have a filetype column
+          char *dot;
+          p = &(tokens[0][toklen[0]]);
+          memcpy(&dot, &p, sizeof(dot));  // NASTY
+          *dot++ = '.';
+          p = tokens[1];
+          for (pos = 0; pos < toklen[1]; pos++)
+            *dot++ = *p++;
+          result->fe_fnlen += 1 + toklen[1];
+        }
+        // oldstyle LISTING:
+        // files/dirs not on the 'A' minidisk are not RETRievable/CHDIRable
+        // if (toklen[tokmarker+4] != 10 && *tokens[tokmarker-1] != 'A')
+        // return FTP_TYPE_JUNK;
+
+        // VM/CMS LISTings have no usable filesize field.
+        // Have to use the 'SIZE' command for that.
+        return result->fe_type;
+      }  // if (lstyle == 'C' && (!state->lstyle || state->lstyle == lstyle))
+    }  // VM/CMS
+#endif  // SUPPORT_CMS
+
+#if defined(SUPPORT_DOS)  // WinNT DOS dirstyle
+    if (!lstyle && (!state->lstyle || state->lstyle == 'W')) {
+      // "10-23-00 01:27PM <DIR> veronist"
+      // "06-15-00 07:37AM <DIR> zoe"
+      // "07-14-00 01:35PM 2094926 canprankdesk.tif"
+      // "07-21-00 01:19PM 95077 Jon Kauffman Enjoys the Good Life.jpg"
+      // "07-21-00 01:19PM 52275 Name Plate.jpg"
+      // "07-14-00 01:38PM 2250540 Valentineoffprank-HiRes.jpg"
+      if ((numtoks >= 4) && toklen[0] == 8 && toklen[1] == 7 &&
+        (*tokens[2] == '<' || isdigit(*tokens[2]))) {
+          p = tokens[0];
+          if (isdigit(p[0]) && isdigit(p[1]) && p[2] == '-' &&
+            isdigit(p[3]) && isdigit(p[4]) && p[5] == '-' &&
+            isdigit(p[6]) && isdigit(p[7])) {
+              p = tokens[1];
+              if (isdigit(p[0]) && isdigit(p[1]) && p[2] == ':' &&
+                isdigit(p[3]) && isdigit(p[4]) &&
+                (p[5] == 'A' || p[5] == 'P') && p[6] == 'M') {
+                  lstyle = 'W';
+                  if (!state->lstyle) {
+                    p = tokens[2];
+                    // <DIR> or <JUNCTION>
+                    if (*p != '<' || p[toklen[2] - 1] != '>') {
+                      for (pos = 1; (lstyle && pos < toklen[2]); pos++) {
+                        if (!isdigit(*++p))
+                          lstyle = 0;
+                      }
+                    }
+                  }
+              }
+          }
+      }
+      if (lstyle == 'W') {
+        state->parsed_one = 1;
+        state->lstyle = lstyle;
+
+        p = &(line[linelen_sans_wsp]);  // line end sans wsp
+        result->fe_cinfs = 1;
+        result->fe_fname = tokens[3];
+        result->fe_fnlen = p - tokens[3];
+        result->fe_type = FTP_TYPE_DIRECTORY;
+
+        if (*tokens[2] != '<') {  // not <DIR> or <JUNCTION>
+          result->fe_type = FTP_TYPE_FILE;
+          pos = toklen[2];
+          while (pos > (sizeof(result->fe_size) - 1))
+            pos = (sizeof(result->fe_size) - 1);
+          memcpy(result->fe_size, tokens[2], pos);
+          result->fe_size[pos] = '\0';
+        } else if ((tokens[2][1]) != 'D') {  // not <DIR>
+            result->fe_type = FTP_TYPE_JUNK;  // unknown until junc for sure
+            if (result->fe_fnlen > 4) {
+              p = result->fe_fname;
+              for (pos = result->fe_fnlen - 4; pos > 0; pos--) {
+                if (p[0] == ' ' && p[3] == ' ' && p[2] == '>' &&
+                  (p[1] == '=' || p[1] == '-')) {
+                  result->fe_type = FTP_TYPE_SYMLINK;
+                  result->fe_fnlen = p - result->fe_fname;
+                  result->fe_lname = p + 4;
+                  result->fe_lnlen = &(line[linelen_sans_wsp])
+                    - result->fe_lname;
+                  break;
+                }
+                p++;
+              }
+            }
+        }
+
+        result->fe_time.tm_mon = StringToInt(tokens[0]+0);
+        if (result->fe_time.tm_mon != 0) {
+          result->fe_time.tm_mon--;
+          result->fe_time.tm_mday = StringToInt(tokens[0]+3);
+          result->fe_time.tm_year = StringToInt(tokens[0]+6);
+          if (result->fe_time.tm_year < 80)
+            result->fe_time.tm_year += 100;
+        }
+
+        result->fe_time.tm_hour = StringToInt(tokens[1]+0);
+        result->fe_time.tm_min = StringToInt(tokens[1]+3);
+        if ((tokens[1][5]) == 'P' && result->fe_time.tm_hour < 12)
+          result->fe_time.tm_hour += 12;
+
+        // the caller should do this (if dropping "." and ".." is desired)
+        // if (result->fe_type == FTP_TYPE_DIRECTORY && result->fe_fname[0]
+        // == '.' &&
+        // (result->fe_fnlen == 1 || (result->fe_fnlen == 2 &&
+        // result->fe_fname[1] == '.')))
+        // return FTP_TYPE_JUNK;
+
+        return result->fe_type;
+      }  // if (lstyle == 'W' && (!state->lstyle || state->lstyle == lstyle))
+    }  // if (!lstyle && (!state->lstyle || state->lstyle == 'W'))
+#endif
+
+#if defined(SUPPORT_OS2)
+    if (!lstyle && (!state->lstyle || state->lstyle == 'O')) {  // OS/2 test
+      // 220 server IBM TCP/IP for OS/2 - FTP Server ver 23:04:36 on
+      // Jan 15 1997 ready.
+      // fixed position, space padded columns. I have only a vague idea
+      // of what the contents between col 18 and 34 might be: All I can infer
+      // is that there may be attribute flags in there and there may be
+      // a " DIR" in there.
+      //
+      // 1 2 3 4 5 6
+      // 0123456789012345678901234567890123456789012345678901234567890123456789
+      // ----- size -------|??????????????? MM-DD-YY| HH:MM| nnnnnnnnn....
+      // 0 DIR 04-11-95 16:26 .
+      // 0 DIR 04-11-95 16:26 ..
+      // 0 DIR 04-11-95 16:26 ADDRESS
+      // 612 RHSA 07-28-95 16:45 air_tra1.bag
+      // 195 A 08-09-95 10:23 Alfa1.bag
+      // 0 RHS DIR 04-11-95 16:26 ATTACH
+      // 372 A 08-09-95 10:26 Aussie_1.bag
+      // 310992 06-28-94 09:56 INSTALL.EXE
+      // 1 2 3 4
+      // 01234567890123456789012345678901234567890123456789
+      // dirlist from the mirror.pl project, col positions from Mozilla.
+
+      p = &(line[toklen[0]]);
+      // \s(\d\d-\d\d-\d\d)\s+(\d\d:\d\d)\s
+      if (numtoks >= 4 && toklen[0] <= 18 && isdigit(*tokens[0]) &&
+        (linelen - toklen[0]) >= (53-18) &&
+        p[18-18] == ' ' && p[34-18] == ' ' &&
+        p[37-18] == '-' && p[40-18] == '-' && p[43-18] == ' ' &&
+        p[45-18] == ' ' && p[48-18] == ':' && p[51-18] == ' ' &&
+        isdigit(p[35-18]) && isdigit(p[36-18]) &&
+        isdigit(p[38-18]) && isdigit(p[39-18]) &&
+        isdigit(p[41-18]) && isdigit(p[42-18]) &&
+        isdigit(p[46-18]) && isdigit(p[47-18]) &&
+        isdigit(p[49-18]) && isdigit(p[50-18])) {
+          lstyle = 'O';  // OS/2
+          if (!state->lstyle) {
+            for (pos = 1; lstyle && pos < toklen[0]; pos++) {
+              if (!isdigit(tokens[0][pos]))
+                lstyle = 0;
+            }
+          }
+      }
+
+      if (lstyle == 'O') {
+        state->parsed_one = 1;
+        state->lstyle = lstyle;
+
+        p = &(line[toklen[0]]);
+
+        result->fe_cinfs = 1;
+        result->fe_fname = &p[53-18];
+        result->fe_fnlen = (&(line[linelen_sans_wsp]))
+          - (result->fe_fname);
+        result->fe_type = FTP_TYPE_FILE;
+
+        // I don't have a real listing to determine exact pos, so scan.
+        for (pos = (18-18); pos < ((35-18)-4); pos++) {
+          if (p[pos+0] == ' ' && p[pos+1] == 'D' &&
+            p[pos+2] == 'I' && p[pos+3] == 'R') {
+              result->fe_type = FTP_TYPE_DIRECTORY;
+              break;
+          }
+        }
+
+        if (result->fe_type != FTP_TYPE_DIRECTORY) {
+          pos = toklen[0];
+          if (pos > (sizeof(result->fe_size)-1))
+            pos = (sizeof(result->fe_size)-1);
+          memcpy(result->fe_size, tokens[0], pos);
+          result->fe_size[pos] = '\0';
+        }
+
+        result->fe_time.tm_mon = StringToInt(&p[35-18]) - 1;
+        result->fe_time.tm_mday = StringToInt(&p[38-18]);
+        result->fe_time.tm_year = StringToInt(&p[41-18]);
+        if (result->fe_time.tm_year < 80)
+          result->fe_time.tm_year += 100;
+        result->fe_time.tm_hour = StringToInt(&p[46-18]);
+        result->fe_time.tm_min = StringToInt(&p[49-18]);
+
+        // The caller should do this (if dropping "." and ".." is desired)
+        // if (result->fe_type == FTP_TYPE_DIRECTORY && result->fe_fname[0] == '.' &&
+        // (result->fe_fnlen == 1 || (result->fe_fnlen == 2 &&
+        // result->fe_fname[1] == '.')))
+        // return FTP_TYPE_JUNK;
+
+        return result->fe_type;
+      }  // if (lstyle == 'O')
+    }  // if (!lstyle && (!state->lstyle || state->lstyle == 'O'))
+#endif  // SUPPORT_OS2
+
+#if defined(SUPPORT_LSL)
+    if (!lstyle && (!state->lstyle || state->lstyle == 'U')) {  // /bin/ls & co.
+      // UNIX-style listing, without inum and without blocks
+      // "-rw-r--r-- 1 root other 531 Jan 29 03:26 README"
+      // "dr-xr-xr-x 2 root other 512 Apr 8 1994 etc"
+      // "dr-xr-xr-x 2 root 512 Apr 8 1994 etc"
+      // "lrwxrwxrwx 1 root other 7 Jan 25 00:17 bin -> usr/bin"
+      // Also produced by Microsoft's FTP servers for Windows:
+      // "---------- 1 owner group 1803128 Jul 10 10:18 ls-lR.Z"
+      // "d--------- 1 owner group 0 May 9 19:45 Softlib"
+      // Also WFTPD for MSDOS:
+      // "-rwxrwxrwx 1 noone nogroup 322 Aug 19 1996 message.ftp"
+      // Hellsoft for NetWare:
+      // "d[RWCEMFA] supervisor 512 Jan 16 18:53 login"
+      // "-[RWCEMFA] rhesus 214059 Oct 20 15:27 cx.exe"
+      // Newer Hellsoft for NetWare: (netlab2.usu.edu)
+      // - [RWCEAFMS] NFAUUser 192 Apr 27 15:21 HEADER.html
+      // d [RWCEAFMS] jrd 512 Jul 11 03:01 allupdates
+      // Also NetPresenz for the Mac:
+      // "-------r-- 326 1391972 1392298 Nov 22 1995 MegaPhone.sit"
+      // "drwxrwxr-x folder 2 May 10 1996 network"
+      // Protected directory:
+      // "drwx-wx-wt 2 root wheel 512 Jul 1 02:15 incoming"
+      // uid/gid instead of username/groupname:
+      // "drwxr-xr-x 2 0 0 512 May 28 22:17 etc"
+
+      if (numtoks >= 6) {
+        // there are two perm formats (Hellsoft/NetWare and *IX strmode(3)).
+        // Scan for size column only if the perm format is one or the other.
+        if (toklen[0] == 1 || (tokens[0][1]) == '[') {
+          if (*tokens[0] == FTP_TYPE_DIRECTORY || *tokens[0] == '-') {
+            pos = toklen[0]-1;
+            p = tokens[0] + 1;
+            if (pos == 0) {
+              p = tokens[1];
+              pos = toklen[1];
+            }
+            if ((pos == 9 || pos == 10) &&
+              (*p == '[' && p[pos-1] == ']') &&
+              (p[1] == 'R' || p[1] == '-') &&
+              (p[2] == 'W' || p[2] == '-') &&
+              (p[3] == 'C' || p[3] == '-') &&
+              (p[4] == 'E' || p[4] == '-')) {
+                // rest is FMA[S] or AFM[S]
+                lstyle = 'U';  // very likely one of the NetWare servers
+            }
+          }
+        } else if ((toklen[0] == 10 || toklen[0] == 11) &&
+            strchr("-bcdlpsw?DFam", *tokens[0])) {
+              p = &(tokens[0][1]);
+              if ((p[0] == 'r' || p[0] == '-') &&
+                  (p[1] == 'w' || p[1] == '-') &&
+                  (p[3] == 'r' || p[3] == '-') &&
+                  (p[4] == 'w' || p[4] == '-') &&
+                  (p[6] == 'r' || p[6] == '-') &&
+                  (p[7] == 'w' || p[7] == '-')) {
+                  // 'x'/p[9] can be S|s|x|-|T|t or implementation specific
+                lstyle = 'U';  // very likely /bin/ls
+              }
+          }
+      }
+      if (lstyle == 'U') {  // first token checks out
+        lstyle = 0;
+        for (pos = (numtoks-5); !lstyle && pos > 1; pos--) {
+          // scan for: (\d+)\s+([A-Z][a-z][a-z])\s+
+          // (\d\d\d\d|\d\:\d\d|\d\d\:\d\d|\d\:\d\d\:\d\d|\d\d\:\d\d\:\d\d)
+          // \s+(.+)$
+          if (isdigit(*tokens[pos])  // size
+            // (\w\w\w)
+            && toklen[pos+1] == 3 && isalpha(*tokens[pos+1]) &&
+            isalpha(tokens[pos+1][1]) && isalpha(tokens[pos+1][2])
+            // (\d|\d\d)
+            && isdigit(*tokens[pos+2]) &&
+            (toklen[pos+2] == 1 ||
+            (toklen[pos+2] == 2 && isdigit(tokens[pos+2][1])))
+            && toklen[pos+3] >= 4 && isdigit(*tokens[pos+3])
+            // (\d\:\d\d\:\d\d|\d\d\:\d\d\:\d\d)
+            && (toklen[pos+3] <= 5 || (
+            (toklen[pos+3] == 7 || toklen[pos+3] == 8) &&
+            (tokens[pos+3][toklen[pos+3]-3]) == ':'))
+            && isdigit(tokens[pos+3][toklen[pos+3]-2])
+            && isdigit(tokens[pos+3][toklen[pos+3]-1])
+            && (
+            // (\d\d\d\d)
+            ((toklen[pos+3] == 4 || toklen[pos+3] == 5) &&
+            isdigit(tokens[pos+3][1]) &&
+            isdigit(tokens[pos+3][2]) )
+            // (\d\:\d\d|\d\:\d\d\:\d\d)
+            || ((toklen[pos+3] == 4 || toklen[pos+3] == 7) &&
+            (tokens[pos+3][1]) == ':' &&
+            isdigit(tokens[pos+3][2]) && isdigit(tokens[pos+3][3]))
+            // (\d\d\:\d\d|\d\d\:\d\d\:\d\d)
+            || ((toklen[pos+3] == 5 || toklen[pos+3] == 8) &&
+            isdigit(tokens[pos+3][1]) && (tokens[pos+3][2]) == ':' &&
+            isdigit(tokens[pos+3][3]) && isdigit(tokens[pos+3][4])))) {
+              lstyle = 'U';  // assume /bin/ls or variant format
+              tokmarker = pos;
+              // check that size is numeric
+              p = tokens[tokmarker];
+              unsigned int i;
+              for (i = 0; i < toklen[tokmarker]; i++) {
+                if (!isdigit(*p++)) {
+                  lstyle = 0;
+                  break;
+                }
+              }
+              if (lstyle) {
+                month_num = 0;
+                p = tokens[tokmarker+1];
+                for (i = 0; i < (12*3); i+=3) {
+                  if (p[0] == month_names[i+0] &&
+                    p[1] == month_names[i+1] &&
+                    p[2] == month_names[i+2])
+                    break;
+                  month_num++;
+                }
+                if (month_num >= 12)
+                  lstyle = 0;
+              }
+          }  // relative position test
+        }  // for (pos = (numtoks-5); !lstyle && pos > 1; pos--)
+      }  // if (lstyle == 'U')
+
+      if (lstyle == 'U') {
+        state->parsed_one = 1;
+        state->lstyle = lstyle;
+
+        result->fe_cinfs = 0;
+        result->fe_type = FTP_TYPE_JUNK;
+        if (*tokens[0] == 'd' || *tokens[0] == 'D')
+          result->fe_type = FTP_TYPE_DIRECTORY;
+        else if (*tokens[0] == 'l')
+          result->fe_type = FTP_TYPE_SYMLINK;
+        else if (*tokens[0] == '-' || *tokens[0] == 'F')
+          result->fe_type = FTP_TYPE_FILE;  // (hopefully a regular file)
+
+        if (result->fe_type != FTP_TYPE_DIRECTORY) {
+          pos = toklen[tokmarker];
+          if (pos > (sizeof(result->fe_size)-1))
+            pos = (sizeof(result->fe_size)-1);
+          memcpy(result->fe_size, tokens[tokmarker], pos);
+          result->fe_size[pos] = '\0';
+        }
+
+        result->fe_time.tm_mon = month_num;
+        result->fe_time.tm_mday = StringToInt(tokens[tokmarker+2]);
+        if (result->fe_time.tm_mday == 0)
+          result->fe_time.tm_mday++;
+
+        p = tokens[tokmarker+3];
+        pos = (unsigned int)StringToInt(p);
+        if (p[1] == ':')  // one digit hour
+          p--;
+        if (p[2] != ':') {  // year
+          result->fe_time.tm_year = pos;
+        } else {
+            result->fe_time.tm_hour = pos;
+            result->fe_time.tm_min = StringToInt(p+3);
+            if (p[5] == ':')
+              result->fe_time.tm_sec = StringToInt(p+6);
+
+            if (!state->now_time) {
+              time_t now = time(NULL);
+              state->now_time = now * 1000000;
+              // TODO(ibrar): Yet to give another thouth
+#if defined(OS_WIN)
+              gmtime_s(&state->now_tm, &now);
+#elif defined(OS_POSIX)
+              gmtime_r(&now, &state->now_tm);
+#endif
+            }
+
+            result->fe_time.tm_year = state->now_tm.tm_year;
+            if ( (( state->now_tm.tm_mon << 5) + state->now_tm.tm_mday) <
+              ((result->fe_time.tm_mon << 5) + result->fe_time.tm_mday) )
+              result->fe_time.tm_year--;
+        }  // time/year
+
+        result->fe_fname = tokens[tokmarker+4];
+        result->fe_fnlen = (&(line[linelen_sans_wsp]))
+          - (result->fe_fname);
+
+        if (result->fe_type == FTP_TYPE_SYMLINK && result->fe_fnlen > 4) {
+          p = result->fe_fname + 1;
+          for (pos = 1; pos < (result->fe_fnlen - 4); pos++) {
+            if (*p == ' ' && p[1] == '-' && p[2] == '>' && p[3] == ' ') {
+              result->fe_lname = p + 4;
+              result->fe_lnlen = (&(line[linelen_sans_wsp]))
+                - (result->fe_lname);
+              result->fe_fnlen = pos;
+              break;
+            }
+            p++;
+          }
+        }
+
+#if defined(SUPPORT_LSLF)  // some (very rare) servers return ls -lF
+        if (result->fe_fnlen > 1) {
+          p = result->fe_fname[result->fe_fnlen-1];
+          pos = result->fe_type;
+          if (pos == FTP_TYPE_DIRECTORY) {
+            if (*p == '/') result->fe_fnlen--;  // directory
+          } else if (pos == FTP_TYPE_SYMLINK) {
+              if (*p == '@') result->fe_fnlen--;  // symlink
+          } else if (pos == FTP_TYPE_FILE) {
+              if (*p == '*') result->fe_fnlen--;  // executable
+            } else if (*p == '=' || *p == '%' || *p == '|') {
+                result->fe_fnlen--;  // socket, whiteout, fifo
+            }
+        }
+#endif  // SUPPORT_LSLF
+        // the caller should do this (if dropping "." and ".." is desired)
+        // if (result->fe_type == FTP_TYPE_DIRECTORY && result->fe_fname[0] == '.' &&
+        // (result->fe_fnlen == 1 || (result->fe_fnlen == 2 &&
+        // result->fe_fname[1] == '.')))
+        // return FTP_TYPE_JUNK;
+        return result->fe_type;
+      }  // if (lstyle == 'U')
+    }  // if (!lstyle && (!state->lstyle || state->lstyle == 'U'))
+#endif  // SUPPORT_LSL
+
+#if defined(SUPPORT_W16)  // 16bit Windows
+    // old SuperTCP suite FTP server for Win3.1
+    if (!lstyle && (!state->lstyle || state->lstyle == 'w')) {
+      // old NetManage Chameleon TCP/IP suite FTP server for Win3.1
+      // SuperTCP dirlist from the mirror.pl project
+      // mon/day/year separator may be '/' or '-'.
+      // . <DIR> 11-16-94 17:16
+      // .. <DIR> 11-16-94 17:16
+      // INSTALL <DIR> 11-16-94 17:17
+      // CMT <DIR> 11-21-94 10:17
+      // DESIGN1.DOC 11264 05-11-95 14:20
+      // README.TXT 1045 05-10-95 11:01
+      // WPKIT1.EXE 960338 06-21-95 17:01
+      // CMT.CSV 0 07-06-95 14:56
+      //
+      // Chameleon dirlist guessed from lynx
+      // . <DIR> Nov 16 1994 17:16
+      // .. <DIR> Nov 16 1994 17:16
+      // INSTALL <DIR> Nov 16 1994 17:17
+      // CMT <DIR> Nov 21 1994 10:17
+      // DESIGN1.DOC 11264 May 11 1995 14:20 A
+      // README.TXT 1045 May 10 1995 11:01
+      // WPKIT1.EXE 960338 Jun 21 1995 17:01 R
+      // CMT.CSV 0 Jul 06 1995 14:56 RHA
+      if (numtoks >= 4 && toklen[0] < 13 &&
+        ((toklen[1] == 5 && *tokens[1] == '<') || isdigit(*tokens[1]))) {
+          if (numtoks == 4
+            && (toklen[2] == 8 || toklen[2] == 9)
+            && (((tokens[2][2]) == '/' && (tokens[2][5]) == '/') ||
+            ((tokens[2][2]) == '-' && (tokens[2][5]) == '-'))
+            && (toklen[3] == 4 || toklen[3] == 5)
+            && (tokens[3][toklen[3]-3]) == ':'
+            && isdigit(tokens[2][0]) && isdigit(tokens[2][1])
+            && isdigit(tokens[2][3]) && isdigit(tokens[2][4])
+            && isdigit(tokens[2][6]) && isdigit(tokens[2][7])
+            && (toklen[2] < 9 || isdigit(tokens[2][8]))
+            && isdigit(tokens[3][toklen[3]-1])
+            && isdigit(tokens[3][toklen[3]-2])
+            && isdigit(tokens[3][toklen[3]-4]) && isdigit(*tokens[3])) {
+              lstyle = 'w';
+          } else if ((numtoks == 6 || numtoks == 7)
+              && toklen[2] == 3 && toklen[3] == 2
+              && toklen[4] == 4 && toklen[5] == 5
+              && (tokens[5][2]) == ':'
+              && isalpha(tokens[2][0]) && isalpha(tokens[2][1])
+              && isalpha(tokens[2][2])
+              && isdigit(tokens[3][0]) && isdigit(tokens[3][1])
+              && isdigit(tokens[4][0]) && isdigit(tokens[4][1])
+              && isdigit(tokens[4][2]) && isdigit(tokens[4][3])
+              && isdigit(tokens[5][0]) && isdigit(tokens[5][1])
+              && isdigit(tokens[5][3]) && isdigit(tokens[5][4])) {
+                // could also check that (&(tokens[5][5]) - tokens[2]) == 17
+                lstyle = 'w';
+            }
+            if (lstyle && state->lstyle != lstyle) {  // first time
+              p = tokens[1];
+              if (toklen[1] != 5 || p[0] != '<' || p[1] != 'D' ||
+                p[2] != 'I' || p[3] != 'R' || p[4] != '>') {
+                  for (pos = 0; lstyle && pos < toklen[1]; pos++) {
+                    if (!isdigit(*p++))
+                      lstyle = 0;
+                  }
+              }  // not <DIR>
+            }  // if (first time)
+      }  // if (numtoks == ...)
+
+      if (lstyle == 'w') {
+        state->parsed_one = 1;
+        state->lstyle = lstyle;
+
+        result->fe_cinfs = 1;
+        result->fe_fname = tokens[0];
+        result->fe_fnlen = toklen[0];
+        result->fe_type = FTP_TYPE_DIRECTORY;
+
+        p = tokens[1];
+        if (isdigit(*p)) {
+          result->fe_type = FTP_TYPE_FILE;
+          pos = toklen[1];
+          if (pos > (sizeof(result->fe_size) - 1))
+            pos = sizeof(result->fe_size) - 1;
+          memcpy(result->fe_size, p, pos);
+          result->fe_size[pos] = '\0';
+        }
+
+        p = tokens[2];
+        if (toklen[2] == 3) {  // Chameleon
+          tbuf[0] = toupper(p[0]);
+          tbuf[1] = tolower(p[1]);
+          tbuf[2] = tolower(p[2]);
+          for (pos = 0; pos < (12*3); pos+=3) {
+            if (tbuf[0] == month_names[pos+0] &&
+              tbuf[1] == month_names[pos+1] &&
+              tbuf[2] == month_names[pos+2]) {
+              result->fe_time.tm_mon = pos/3;
+              result->fe_time.tm_mday = StringToInt(tokens[3]);
+              result->fe_time.tm_year = StringToInt(tokens[4]) - 1900;
+              break;
+            }
+          }
+          pos = 5;  // Chameleon toknum of date field
+        } else {
+          result->fe_time.tm_mon = StringToInt(p+0)-1;
+          result->fe_time.tm_mday = StringToInt(p+3);
+          result->fe_time.tm_year = StringToInt(p+6);
+          if (result->fe_time.tm_year < 80)  // SuperTCP
+            result->fe_time.tm_year += 100;
+
+          pos = 3;  // SuperTCP toknum of date field
+        }
+
+        result->fe_time.tm_hour = StringToInt(tokens[pos]);
+        result->fe_time.tm_min = StringToInt(&(tokens[pos][toklen[pos]-2]));
+
+        // the caller should do this (if dropping "." and ".." is desired)
+        // if (result->fe_type == FTP_TYPE_DIRECTORY && result->fe_fname[0] == '.' &&
+        // (result->fe_fnlen == 1 || (result->fe_fnlen == 2 &&
+        // result->fe_fname[1] == '.')))
+        // return FTP_TYPE_JUNK;
+
+        return result->fe_type;
+      }  // (lstyle == 'w')
+    }  // if (!lstyle && (!state->lstyle || state->lstyle == 'w'))
+#endif  // SUPPORT_W16
+
+#if defined(SUPPORT_DLS)  // dls -dtR
+    if (!lstyle &&
+        (state->lstyle == 'D' || (!state->lstyle && state->numlines == 1))) {
+      // /bin/dls lines have to be immediately recognizable (first line)
+      // I haven't seen an FTP server that delivers a /bin/dls listing,
+      // but can infer the format from the lynx and mirror.pl projects.
+      // Both formats are supported.
+      //
+      // Lynx says:
+      // README 763 Information about this server\0
+      // bin/ - \0
+      // etc/ = \0
+      // ls-lR 0 \0
+      // ls-lR.Z 3 \0
+      // pub/ = Public area\0
+      // usr/ - \0
+      // morgan 14 -> ../real/morgan\0
+      // TIMIT.mostlikely.Z\0
+      // 79215 \0
+      //
+      // mirror.pl says:
+      // filename: ^(\S*)\s+
+      // size: (\-|\=|\d+)\s+
+      // month/day: ((\w\w\w\s+\d+|\d+\s+\w\w\w)\s+
+      // time/year: (\d+:\d+|\d\d\d\d))\s+
+      // rest: (.+)
+      //
+      // README 763 Jul 11 21:05 Information about this server
+      // bin/ - Apr 28 1994
+      // etc/ = 11 Jul 21:04
+      // ls-lR 0 6 Aug 17:14
+      // ls-lR.Z 3 05 Sep 1994
+      // pub/ = Jul 11 21:04 Public area
+      // usr/ - Sep 7 09:39
+      // morgan 14 Apr 18 09:39 -> ../real/morgan
+      // TIMIT.mostlikely.Z
+      // 79215 Jul 11 21:04
+      if (!state->lstyle && line[linelen-1] == ':' &&
+        linelen >= 2 && toklen[numtoks-1] != 1) {
+        // code in mirror.pl suggests that a listing may be preceded
+        // by a PWD line in the form "/some/dir/names/here:"
+        // but does not necessarily begin with '/'. *sigh*
+        pos = 0;
+        p = line;
+        while (pos < (linelen-1)) {
+          // illegal (or extremely unusual) chars in a dirspec
+          if (*p == '<' || *p == '|' || *p == '>' ||
+            *p == '?' || *p == '*' || *p == '\\')
+            break;
+          if (*p == '/' && pos < (linelen-2) && p[1] == '/')
+            break;
+          pos++;
+          p++;
+        }
+        if (pos == (linelen-1)) {
+          state->lstyle = 'D';
+          return FTP_TYPE_JUNK;
+        }
+      }
+
+      if (!lstyle && numtoks >= 2) {
+        pos = 22;  // pos of (\d+|-|=) if this is not part of a multiline
+        if (state->lstyle && carry_buf_len)  // first is from previous line
+          pos = toklen[1]-1;  // and is 'as-is' (may contain whitespace)
+        if (linelen > pos) {
+          p = &line[pos];
+          if ((*p == '-' || *p == '=' || isdigit(*p)) &&
+            ((linelen == (pos+1)) ||
+            (linelen >= (pos+3) && p[1] == ' ' && p[2] == ' '))) {
+            tokmarker = 1;
+            if (!carry_buf_len) {
+              pos = 1;
+              while (pos < numtoks && (tokens[pos]+toklen[pos]) < (&line[23]))
+                pos++;
+              tokmarker = 0;
+              if ((tokens[pos]+toklen[pos]) == (&line[23]))
+                tokmarker = pos;
+            }
+            if (tokmarker) {
+              lstyle = 'D';
+              if (*tokens[tokmarker] == '-' || *tokens[tokmarker] == '=') {
+                if (toklen[tokmarker] != 1 ||
+                  (tokens[tokmarker - 1][toklen[tokmarker - 1] - 1]) != '/')
+                  lstyle = 0;
+              } else {
+                for (pos = 0; lstyle && pos < toklen[tokmarker]; pos++) {
+                  if (!isdigit(tokens[tokmarker][pos]))
+                    lstyle = 0;
+                }
+              }
+              if (lstyle && !state->lstyle) {  // first time
+                // scan for illegal (or incredibly unusual) chars in fname
+                for (p = tokens[0]; lstyle &&
+                  p < &(tokens[tokmarker - 1][toklen[tokmarker - 1]]); p++) {
+                  if (*p == '<' || *p == '|' || *p == '>' ||
+                    *p == '?' || *p == '*' || *p == '/' || *p == '\\')
+                    lstyle = 0;
+                }
+              }
+            }  // size token found
+          }  // expected chars behind expected size token
+        }  // if (linelen > pos)
+      }  // if (!lstyle && numtoks >= 2)
+
+      if (!lstyle && state->lstyle == 'D' && !carry_buf_len) {
+        // the filename of a multi-line entry can be identified
+        // correctly only if dls format had been previously established.
+        // This should always be true because there should be entries
+        // for '.' and/or '..' and/or CWD that precede the rest of the
+        // listing.
+        pos = linelen;
+        if (pos > (sizeof(state->carry_buf) - 1))
+          pos = sizeof(state->carry_buf) - 1;
+        memcpy(state->carry_buf, line, pos);
+        state->carry_buf_len = pos;
+        return FTP_TYPE_JUNK;
+      }
+
+      if (lstyle == 'D') {
+        state->parsed_one = 1;
+        state->lstyle = lstyle;
+
+        p = &(tokens[tokmarker-1][toklen[tokmarker - 1]]);
+        result->fe_fname = tokens[0];
+        result->fe_fnlen = p - tokens[0];
+        result->fe_type = FTP_TYPE_FILE;
+
+        if (result->fe_fname[result->fe_fnlen - 1] == '/') {
+          if (result->fe_lnlen == 1) {
+            result->fe_type = FTP_TYPE_JUNK;
+          } else {
+            result->fe_fnlen--;
+            result->fe_type = FTP_TYPE_DIRECTORY;
+          }
+        } else if (isdigit(*tokens[tokmarker])) {
+            pos = toklen[tokmarker];
+            if (pos > (sizeof(result->fe_size) - 1))
+              pos = sizeof(result->fe_size) - 1;
+            memcpy(result->fe_size, tokens[tokmarker], pos);
+            result->fe_size[pos] = '\0';
+        }
+
+        if ((tokmarker+3) < numtoks &&
+          (&(tokens[numtoks - 1][toklen[numtoks-1]]) -
+          tokens[tokmarker + 1]) >= (1 + 1 + 3 + 1 + 4)) {
+            pos = (tokmarker + 3);
+            p = tokens[pos];
+            pos = toklen[pos];
+
+            if ((pos == 4 || pos == 5) && isdigit(*p) &&
+              isdigit(p[pos-1]) && isdigit(p[pos - 2])
+              && ((pos == 5 && p[2] == ':') ||
+              (pos == 4 && (isdigit(p[1]) || p[1] == ':')))) {
+                month_num = tokmarker + 1;  // assumed position of month field
+                pos = tokmarker + 2;  // assumed position of mday field
+                if (isdigit(*tokens[month_num])) {  // positions are reversed
+                  month_num++;
+                  pos--;
+                }
+                p = tokens[month_num];
+                if (isdigit(*tokens[pos])
+                  && (toklen[pos] == 1 ||
+                  (toklen[pos] == 2 && isdigit(tokens[pos][1])))
+                  && toklen[month_num] == 3
+                  && isalpha(*p) && isalpha(p[1]) && isalpha(p[2])) {
+                  pos = StringToInt(tokens[pos]);
+                  if (pos > 0 && pos <= 31) {
+                    result->fe_time.tm_mday = pos;
+                    month_num = 1;
+                    for (pos = 0; pos < (12*3); pos += 3) {
+                      if (p[0] == month_names[pos + 0] &&
+                        p[1] == month_names[pos + 1] &&
+                        p[2] == month_names[pos + 2])
+                        break;
+                      month_num++;
+                    }
+                    if (month_num > 12)
+                      result->fe_time.tm_mday = 0;
+                    else
+                      result->fe_time.tm_mon = month_num - 1;
+                  }
+                }
+                if (result->fe_time.tm_mday) {
+                  tokmarker += 3;  // skip mday/mon/yrtime (to find " -> ")
+                  p = tokens[tokmarker];
+
+                  pos = StringToInt(p);
+                  if (pos > 24) {
+                    result->fe_time.tm_year = pos - 1900;
+                  } else {
+                    if (p[1] == ':')
+                      p--;
+                    result->fe_time.tm_hour = pos;
+                    result->fe_time.tm_min = StringToInt(p + 3);
+                    if (!state->now_time) {
+                      time_t now = time(NULL);
+                      state->now_time = now * 1000000;
+                      // TODO(ibrar): Yet to give anther thought.
+#if defined(OS_WIN)
+                     gmtime_s(&state->now_tm, &now);
+#elif defined(OS_POSIX)
+                     gmtime_r(&now, &state->now_tm);
+#endif
+                    }
+                    result->fe_time.tm_year = state->now_tm.tm_year;
+                    if ((( state->now_tm.tm_mon << 4) +
+                        state->now_tm.tm_mday) <
+                        ((result->fe_time.tm_mon << 4) +
+                        result->fe_time.tm_mday))
+                      result->fe_time.tm_year--;
+                  }  // got year or time
+                }  // got month/mday
+            }  // may have year or time
+        }  // enough remaining to possibly have date/time
+
+        if (numtoks > (tokmarker+2)) {
+          pos = tokmarker+1;
+          p = tokens[pos];
+          if (toklen[pos] == 2 && *p == '-' && p[1] == '>') {
+            p = &(tokens[numtoks - 1][toklen[numtoks - 1]]);
+            result->fe_type = FTP_TYPE_SYMLINK;
+            result->fe_lname = tokens[pos + 1];
+            result->fe_lnlen = p - result->fe_lname;
+            if (result->fe_lnlen > 1 &&
+              result->fe_lname[result->fe_lnlen -1] == '/')
+              result->fe_lnlen--;
+          }
+        }  // if (numtoks > (tokmarker+2))
+
+        // The caller should do this (if dropping "." and ".." is desired)
+        // if (result->fe_type == FTP_TYPE_DIRECTORY && result->fe_fname[0] == '.' &&
+        // (result->fe_fnlen == 1 || (result->fe_fnlen == 2 &&
+        // result->fe_fname[1] == '.')))
+        // return FTP_TYPE_JUNK;
+        return result->fe_type;
+      }  // if (lstyle == 'D')
+    }  // if (!lstyle && (!state->lstyle || state->lstyle == 'D'))
+#endif
+  }  // if (linelen > 0)
+
+  if (state->parsed_one || state->lstyle)  // junk if we fail to parse
+    return FTP_TYPE_JUNK;  // this time but had previously parsed successfully
+  return FTP_TYPE_COMMENT;  // its part of a comment or error message
+}
+
+}  // namespace net