~drizzle-trunk/drizzle/development

/* Copyright (C) 2000-2004 MySQL AB

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation.

   There are special exceptions to the terms and conditions of the GPL as it

   is applied to this software. View the full text of the exception in file

   EXCEPTIONS-CLIENT in the directory of this software distribution.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

/*

** Ask for a password from tty

** This is an own file to avoid conflicts with curses

*/

#include <my_global.h>

#include <my_sys.h>

#include "mysql.h"

#include <m_string.h>

#include <m_ctype.h>

#if defined(HAVE_BROKEN_GETPASS) && !defined(HAVE_GETPASSPHRASE)

#undef HAVE_GETPASS

#endif

#ifdef HAVE_GETPASS

#ifdef HAVE_PWD_H

#include <pwd.h>

#endif /* HAVE_PWD_H */

#else /* ! HAVE_GETPASS */

#if !defined(__WIN__) && !defined(__NETWARE__)

#include <sys/ioctl.h>

#ifdef HAVE_TERMIOS_H				/* For tty-password */

#include	<termios.h>

#define TERMIO	struct termios

#else

#ifdef HAVE_TERMIO_H				/* For tty-password */

#include	<termio.h>

#define TERMIO	struct termio

#else

#include	<sgtty.h>

#define TERMIO	struct sgttyb

#endif

#endif

#ifdef alpha_linux_port

#include <asm/ioctls.h>				/* QQ; Fix this in configure */

#include <asm/termiobits.h>

#endif

#else

#ifndef __NETWARE__

#include <conio.h>

#endif /* __NETWARE__ */

#endif /* __WIN__ */

#endif /* HAVE_GETPASS */

#ifdef HAVE_GETPASSPHRASE			/* For Solaris */

#define getpass(A) getpassphrase(A)

#endif

#if defined( __WIN__) || defined(__NETWARE__)

/* were just going to fake it here and get input from the keyboard */

#ifdef __NETWARE__

#undef _getch

#undef _cputs

#define _getch getcharacter

#define _cputs(A) putstring(A)

#endif

char *get_tty_password(const char *opt_message)

{

  char to[80];

  char *pos=to,*end=to+sizeof(to)-1;

  int i=0;

  DBUG_ENTER("get_tty_password");

  _cputs(opt_message ? opt_message : "Enter password: ");

  for (;;)

  {

    char tmp;

    tmp=_getch();

    if (tmp == '\b' || (int) tmp == 127)

    {

      if (pos != to)

      {

	_cputs("\b \b");

	pos--;

	continue;

      }

    }

    if (tmp == '\n' || tmp == '\r' || tmp == 3)

      break;

    if (iscntrl(tmp) || pos == end)

      continue;

    _cputs("*");

    *(pos++) = tmp;

  }

  while (pos != to && isspace(pos[-1]) == ' ')

    pos--;					/* Allow dummy space at end */

  *pos=0;

  _cputs("\n");

  DBUG_RETURN(my_strdup(to,MYF(MY_FAE)));

}

#else

#ifndef HAVE_GETPASS

/*

  Can't use fgets, because readline will get confused

  length is max number of chars in to, not counting \0

  to will not include the eol characters.

*/

static void get_password(char *to,uint length,int fd, my_bool echo)

{

  char *pos=to,*end=to+length;

  for (;;)

  {

    char tmp;

    if (my_read(fd,&tmp,1,MYF(0)) != 1)

      break;

    if (tmp == '\b' || (int) tmp == 127)

    {

      if (pos != to)

      {

	if (echo)

	{

	  fputs("\b \b",stdout);

	  fflush(stdout);

	}

	pos--;

	continue;

      }

    }

    if (tmp == '\n' || tmp == '\r' || tmp == 3)

      break;

    if (iscntrl(tmp) || pos == end)

      continue;

    if (echo)

    {

      fputc('*',stdout);

      fflush(stdout);

    }

    *(pos++) = tmp;

  }

  while (pos != to && isspace(pos[-1]) == ' ')

    pos--;					/* Allow dummy space at end */

  *pos=0;

  return;

}

#endif /* ! HAVE_GETPASS */

char *get_tty_password(const char *opt_message)

{

#ifdef HAVE_GETPASS

  char *passbuff;

#else /* ! HAVE_GETPASS */

  TERMIO org,tmp;

#endif /* HAVE_GETPASS */

  char buff[80];

  DBUG_ENTER("get_tty_password");

#ifdef HAVE_GETPASS

  passbuff = getpass(opt_message ? opt_message : "Enter password: ");

  /* copy the password to buff and clear original (static) buffer */

  strnmov(buff, passbuff, sizeof(buff) - 1);

#ifdef _PASSWORD_LEN

  memset(passbuff, 0, _PASSWORD_LEN);

#endif

#else 

  if (isatty(fileno(stdout)))

  {

    fputs(opt_message ? opt_message : "Enter password: ",stdout);

    fflush(stdout);

  }

#if defined(HAVE_TERMIOS_H)

  tcgetattr(fileno(stdin), &org);

  tmp = org;

  tmp.c_lflag &= ~(ECHO | ISIG | ICANON);

  tmp.c_cc[VMIN] = 1;

  tmp.c_cc[VTIME] = 0;

  tcsetattr(fileno(stdin), TCSADRAIN, &tmp);

  get_password(buff, sizeof(buff)-1, fileno(stdin), isatty(fileno(stdout)));

  tcsetattr(fileno(stdin), TCSADRAIN, &org);

#elif defined(HAVE_TERMIO_H)

  ioctl(fileno(stdin), (int) TCGETA, &org);

  tmp=org;

  tmp.c_lflag &= ~(ECHO | ISIG | ICANON);

  tmp.c_cc[VMIN] = 1;

  tmp.c_cc[VTIME]= 0;

  ioctl(fileno(stdin),(int) TCSETA, &tmp);

  get_password(buff,sizeof(buff)-1,fileno(stdin),isatty(fileno(stdout)));

  ioctl(fileno(stdin),(int) TCSETA, &org);

#else

  gtty(fileno(stdin), &org);

  tmp=org;

  tmp.sg_flags &= ~ECHO;

  tmp.sg_flags |= RAW;

  stty(fileno(stdin), &tmp);

  get_password(buff,sizeof(buff)-1,fileno(stdin),isatty(fileno(stdout)));

  stty(fileno(stdin), &org);

#endif

  if (isatty(fileno(stdout)))

    fputc('\n',stdout);

#endif /* HAVE_GETPASS */

  DBUG_RETURN(my_strdup(buff,MYF(MY_FAE)));

}

#endif /*__WIN__*/