VSFtpD on Cygwin

Jason Tishler jason@tishler.net
Fri Sep 12 19:40:00 GMT 2003


Joe,

On Fri, Sep 12, 2003 at 10:55:47AM -0700, Joseph Ishak wrote:
> Where can I get Jason Tishler's VSFtpD port for cygwin as mentioned
> here
> 
> http://www.cygwin.com/ml/cygwin/2003-04/msg01844.html

Umm...  No where.

> I am attempting to use ProFtpD to do some stuff with 2000/xp and I am
> having what appears to be the same problem that precipitated the post
> above.

What problems are you having with proftpd?  AFAICT, the text vs. binary
issues have been resolved since the above post.

> I tried searching through the cygwin installer but came up blank.  I
> didn't see an experimental or test release listed on the servers.  I
> tried connecting to the mirrors directly but came up blank as well.
> Any suggestions would be helpful.

I have been meaning to post my latest vsftpd patch to the list -- thanks
for the motivation.  See attached.

However, I must warn you that Cygwin vsftpd can corrupt data under
certain conditions:

    http://www.cygwin.com/ml/cygwin/2003-05/msg00246.html

Jason

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diff -rNup vsftpd-1.1.3.orig/Makefile vsftpd-1.1.3-3/Makefile
--- vsftpd-1.1.3.orig/Makefile	2002-10-21 19:15:16.000000000 -0400
+++ vsftpd-1.1.3-3/Makefile	2003-01-24 09:50:41.000000000 -0500
@@ -15,6 +15,10 @@ OBJS	=	main.o utility.o prelogin.o ftpcm
     ascii.o oneprocess.o twoprocess.o privops.o standalone.o hash.o \
     tcpwrap.o \
     sysutil.o sysdeputil.o
+PREFIX		= /usr/local
+MANDIR		= $(PREFIX)/man
+SYSCONFDIR	= /etc
+DESTDIR		=
 
 .c.o:
 	$(CC) -c $*.c $(CFLAGS) $(IFLAGS)
@@ -22,22 +26,15 @@ OBJS	=	main.o utility.o prelogin.o ftpcm
 vsftpd: $(OBJS) 
 	$(CC) -o vsftpd $(OBJS) $(LINK) $(LIBS)
 
+.PHONY: install
+
 install:
-	if [ -x /usr/local/sbin ]; then \
-		$(INSTALL) -m 755 vsftpd /usr/local/sbin/vsftpd; \
-	else \
-		$(INSTALL) -m 755 vsftpd /usr/sbin/vsftpd; fi
-	if [ -x /usr/local/man ]; then \
-		$(INSTALL) -D -m 644 vsftpd.8 /usr/local/man/man8/vsftpd.8; \
-		$(INSTALL) -D -m 644 vsftpd.conf.5 /usr/local/man/man5/vsftpd.conf.5; \
-	elif [ -x /usr/share/man ]; then \
-		$(INSTALL) -D -m 644 vsftpd.8 /usr/share/man/man8/vsftpd.8; \
-		$(INSTALL) -D -m 644 vsftpd.conf.5 /usr/share/man/man5/vsftpd.conf.5; \
-	else \
-		$(INSTALL) -D -m 644 vsftpd.8 /usr/man/man8/vsftpd.8; \
-		$(INSTALL) -D -m 644 vsftpd.conf.5 /usr/man/man5/vsftpd.conf.5; fi
-	if [ -x /etc/xinetd.d ]; then \
-		$(INSTALL) -m 644 xinetd.d/vsftpd /etc/xinetd.d/vsftpd; fi
+	$(INSTALL) -d $(DESTDIR)$(PREFIX)/sbin $(DESTDIR)$(PREFIX)/man/man8 \
+	    $(DESTDIR)$(PREFIX)/man/man5 $(DESTDIR)$(SYSCONFDIR)/xinetd.d
+	$(INSTALL) -m 755 vsftpd $(DESTDIR)$(PREFIX)/sbin/vsftpd
+	$(INSTALL) -D -m 644 vsftpd.8 $(DESTDIR)$(PREFIX)/man/man8/vsftpd.8
+	$(INSTALL) -D -m 644 vsftpd.conf.5 $(DESTDIR)$(PREFIX)/man/man5/vsftpd.conf.5
+	$(INSTALL) -m 644 xinetd.d/vsftpd $(DESTDIR)$(SYSCONFDIR)/xinetd.d/vsftpd
 
 clean:
 	rm -f *.o *.swp vsftpd
diff -rNup vsftpd-1.1.3.orig/port/cygwin_bogons.h vsftpd-1.1.3-3/port/cygwin_bogons.h
--- vsftpd-1.1.3.orig/port/cygwin_bogons.h	1969-12-31 19:00:00.000000000 -0500
+++ vsftpd-1.1.3-3/port/cygwin_bogons.h	2003-01-24 09:50:59.000000000 -0500
@@ -0,0 +1,14 @@
+#ifndef VSF_CYGWIN_BOGONS_H
+#define VSF_CYGWIN_BOGONS_H
+
+/* Needed for Cygwin NT authentication */
+#include <pwd.h>
+#include <windows.h>
+#include <sys/cygwin.h>
+#define is_winnt                (GetVersion() < 0x80000000)
+
+/* Cygwin's root UID is that of the LocalSystem account (i.e., 18) */
+#undef VSFTP_ROOT_UID
+#define VSFTP_ROOT_UID          18
+
+#endif /* VSF_CYGWIN_BOGONS_H */
diff -rNup vsftpd-1.1.3.orig/port/porting_junk.h vsftpd-1.1.3-3/port/porting_junk.h
--- vsftpd-1.1.3.orig/port/porting_junk.h	2002-09-25 14:16:24.000000000 -0400
+++ vsftpd-1.1.3-3/port/porting_junk.h	2003-01-24 09:50:41.000000000 -0500
@@ -21,6 +21,10 @@
 #include "tru64_bogons.h"
 #endif
 
+#ifdef __CYGWIN__
+#include "cygwin_bogons.h"
+#endif
+
 /* So many older systems lack these, that it's too much hassle to list all
  * the errant systems
  */
diff -rNup vsftpd-1.1.3.orig/sysdeputil.c vsftpd-1.1.3-3/sysdeputil.c
--- vsftpd-1.1.3.orig/sysdeputil.c	2002-10-29 20:06:41.000000000 -0500
+++ vsftpd-1.1.3-3/sysdeputil.c	2003-01-24 09:50:41.000000000 -0500
@@ -99,6 +99,14 @@
 #ifdef __sun
   #define VSF_SYSDEP_HAVE_SOLARIS_SENDFILE
 #endif
+
+#ifdef __CYGWIN__
+  #define VSF_SYSDEP_NEED_OLD_FD_PASSING
+  #undef VSF_SYSDEP_HAVE_PAM
+  #undef VSF_SYSDEP_HAVE_SHADOW
+  #undef VSF_SYSDEP_HAVE_USERSHELL
+  #include <crypt.h>
+#endif
 /* END config */
 
 /* PAM support - we include our own dummy version if the system lacks this */
@@ -220,6 +228,14 @@ vsf_sysdep_check_auth(const struct mystr
     }
   }
   #endif /* VSF_SYSDEP_HAVE_SHADOW */
+#ifdef __CYGWIN__
+  if (is_winnt)
+  {
+    HANDLE token = cygwin_logon_user (p_pwd, str_getbuf(p_pass_str));
+    cygwin_set_impersonation_token (token);
+    return token != INVALID_HANDLE_VALUE;
+  }
+#endif
   p_crypted = crypt(str_getbuf(p_pass_str), p_pwd->pw_passwd);
   if (!vsf_sysutil_strcmp(p_crypted, p_pwd->pw_passwd))
   {
diff -rNup vsftpd-1.1.3.orig/sysutil.c vsftpd-1.1.3-3/sysutil.c
--- vsftpd-1.1.3.orig/sysutil.c	2002-10-25 13:32:52.000000000 -0400
+++ vsftpd-1.1.3-3/sysutil.c	2003-01-24 09:50:41.000000000 -0500
@@ -15,6 +15,7 @@
 #include "sysutil.h"
 #include "utility.h"
 #include "tunables.h"
+#include "defs.h"
 
 /* Activate 64-bit file support on Linux/32bit */
 #define _FILE_OFFSET_BITS 64
@@ -1806,7 +1807,7 @@ vsf_sysutil_get_random_byte(void)
 int
 vsf_sysutil_running_as_root(void)
 {
-  return (getuid() == 0);
+  return (getuid() == VSFTP_ROOT_UID);
 }
 
 void
diff -rNup vsftpd-1.1.3.orig/twoprocess.c vsftpd-1.1.3-3/twoprocess.c
--- vsftpd-1.1.3.orig/twoprocess.c	2002-10-25 13:28:25.000000000 -0400
+++ vsftpd-1.1.3-3/twoprocess.c	2003-01-24 09:50:41.000000000 -0500
@@ -24,6 +24,9 @@
 #include "defs.h"
 #include "parseconf.h"
 
+/* For Linux, this adds nothing :-) */
+#include "port/porting_junk.h"
+
 static void drop_all_privs(void);
 static void handle_sigchld(int duff);
 static void process_login_req(struct vsf_session* p_sess);
diff -rNup vsftpd-1.1.3.orig/vsf_findlibs.sh vsftpd-1.1.3-3/vsf_findlibs.sh
--- vsftpd-1.1.3.orig/vsf_findlibs.sh	2002-10-27 19:12:53.000000000 -0500
+++ vsftpd-1.1.3-3/vsf_findlibs.sh	2003-01-24 09:50:41.000000000 -0500
@@ -35,6 +35,8 @@ elif [ -r /etc/redhat-release ]; then
     echo "-lcap";
   fi
   exit
+elif [ "`uname -s | cut -c -6`" = CYGWIN ]; then
+    echo "-lcrypt"
 fi
 
 # Look for PAM (done weirdly due to distribution bugs (e.g. Debian)

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