vsftp: anomymous can upload but not download

This bug seems to be here from a long time. Even if a patch exists, the bug is still here in the most recent version.
Here is the resolution (I assume gcc is installed):

1. Stop your vsftpd daemon: service vsftpd stop
   
2. Download the lastest source package (vsftpd-2.0.5 so far) from http://vsftpd.beasts.org.
   
3. gunzip and untar
   

   
   # gunzip vsftpd-2.0.5.tar.gz
   # tar xf vsftpd-2.0.5.tar
   # cd vsftpd-2.0.5
   

   
   
4. A couple of files must be changed
   
   
   
   1. postlogin.c, line 1831
      

      Replace
      

      
      ...
      if (p_sess->is_anonymous && tunable_chown_uploads)
        {
          vsf_sysutil_fchmod(new_file_fd, 0600);
          if (tunable_one_process_model)
          {
      ...
      

      
      by
      

      
      ...
      if (p_sess->is_anonymous && tunable_chown_uploads)
        {
          vsf_sysutil_fchmod(new_file_fd, (0666 & ~tunable_anon_umask));
          if (tunable_one_process_model)
          {
      ...
      

      
      
      
      
   2. tunable.c, line 129,130
      

      
      Replace
      

      
      /* -rw-rw-rw- */
      unsigned int tunable_file_open_mode = 0666;
      

      
      by
      

      
      /* -rw------- */
      unsigned int tunable_file_open_mode = 0600;
      

      
      
      
      
   3. builddefs.c, line 9
      

      
      Replace
      

      
      #undef VSF_BUILD_TCPWRAPPERS
      

      
      by
      

      
      #define VSF_BUILD_TCPWRAPPERS
      

      
      
      
      
   4. vsf_findlibs.sh
      

      
      This script doesn't work on 64 bits systems.
      I added
      

      
      [ `uname -m` == "x86_64" ] && LIB=lib64 || LIB=lib
      

      
      at the begining, and I replaced all
      locate_library /lib/ by
      locate_library /$LIB/
      and echo "/lib/libpam.so.0"; (line 17)
      by echo "/$LIB/libpam.so.0";
      
   
   
5. Compile: make
   
6. Replace /usr/sbin/vsftpd by the new version
   
7. Restart your vsftpd daemon: service vsftpd start
   

Tested on RedHat Enterprise Linux 4 (32 and 64 bits)