Switch from using 'nacl_main' to 'main' entry point

ports/openssh/nacl.patch

 diff --git a/channels.h b/channels.h
 --- a/channels.h
 +++ b/channels.h
 @@ -161,9 +161,9 @@ struct Channel {
  
  /* default window/packet sizes for tcp/x11-fwd-channel */
  #define CHAN_SES_PACKET_DEFAULT        (32*1024)
 -#define CHAN_SES_WINDOW_DEFAULT        (64*CHAN_SES_PACKET_DEFAULT)
 +#define CHAN_SES_WINDOW_DEFAULT        (4*CHAN_SES_PACKET_DEFAULT)
  #define CHAN_TCP_PACKET_DEFAULT        (32*1024)
@@ skipping 111 matching lines @@
 +  passwd.pw_shell = "/bin/sh";
 +  return &passwd;
 +}
 +#endif
 +
  /*
   * Main program for the ssh client.
   */
  int
 -main(int ac, char **av)
-+nacl_main(int ac, char **av)
++main(int ac, char **av)
  {
 +       mkdir("/home", 0777);
 +       setenv("HOME", "/home", 1);
 +
         int i, r, opt, exit_status, use_syslog;
         char *p, *cp, *line, *argv0, buf[MAXPATHLEN], *host_arg;
         char thishost[NI_MAXHOST], shorthost[NI_MAXHOST], portstr[NI_MAXSERV];
 diff --git a/sshconnect.h b/sshconnect.h
 --- a/sshconnect.h
 +++ b/sshconnect.h
 @@ -55,6 +55,10 @@ void  ssh_userauth2(const char *, const char *, char *, Sensitive *);
  void    ssh_put_password(char *);
  int     ssh_local_cmd(const char *);
  
 +#ifdef __native_client__
 +#define PRIV_START
 +#define PRIV_END
 +#else
  /*
   * Macros to raise/lower permissions.
   */
 @@ -73,3 +77,4 @@ int    ssh_local_cmd(const char *);
                     strerror(errno));                   \
         errno = save_errno;                             \
  } while (0)
 +#endif