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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* $Id$
***************************************************************************/
/* This file is a reimplementation of the previous one, due to license
problems. */
#include "setup.h"
#ifndef HAVE_GETPASS_R
/* this file is only for systems without getpass_r() */
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "getpass.h"
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#else
#ifdef HAVE_TERMIO_H
#include <termio.h>
#endif
#endif
/* The last #include file should be: */
#if defined(CURLDEBUG) && defined(CURLTOOLDEBUG)
#include "memdebug.h"
#endif
#ifdef VMS
/* VMS implementation */
#include descrip
#include starlet
#include iodef
/* #include iosbdef */
char *getpass_r(const char *prompt, char *buffer, size_t buflen)
{
long sts;
short chan;
/* MSK, 23-JAN-2004, iosbdef.h wasn't in VAX V7.2 or CC 6.4 */
/* distribution so I created this. May revert back later to */
/* struct _iosb iosb; */
struct _iosb
{
short int iosb$w_status; /* status */
short int iosb$w_bcnt; /* byte count */
int unused; /* unused */
} iosb;
$DESCRIPTOR(ttdesc, "TT");
buffer[0]='\0';
sts = sys$assign(&ttdesc, &chan,0,0);
if (sts & 1) {
sts = sys$qiow(0, chan,
IO$_READPROMPT | IO$M_NOECHO,
&iosb, 0, 0, buffer, buflen, 0, 0,
prompt, strlen(prompt));
if((sts & 1) && (iosb.iosb$w_status&1))
buffer[iosb.iosb$w_bcnt] = '\0';
sts = sys$dassgn(chan);
}
return buffer; /* we always return success */
}
#define DONE
#endif /* VMS */
#ifdef WIN32
/* Windows implementation */
#include <conio.h>
char *getpass_r(const char *prompt, char *buffer, size_t buflen)
{
size_t i;
fputs(prompt, stderr);
for(i=0; i<buflen; i++) {
buffer[i] = getch();
if ( buffer[i] == '\r' ) {
buffer[i] = 0;
break;
}
else
if ( buffer[i] == '\b')
/* remove this letter and if this is not the first key, remove the
previous one as well */
i = i - (i>=1?2:1);
}
/* if user didn't hit ENTER, terminate buffer */
if (i==buflen)
buffer[buflen-1]=0;
return buffer; /* we always return success */
}
#define DONE
#endif /* WIN32 */
#ifndef DONE /* not previously provided */
#ifdef HAVE_TERMIOS_H
#define struct_term struct termios
#else
#ifdef HAVE_TERMIO_H
#define struct_term struct termio
#else
#undef struct_term
#endif
#endif
static bool ttyecho(bool enable, int fd)
{
#ifdef struct_term
static struct_term withecho;
static struct_term noecho;
#endif
if(!enable) {
/* dissable echo by extracting the current 'withecho' mode and remove the
ECHO bit and set back the struct */
#ifdef HAVE_TERMIOS_H
tcgetattr(fd, &withecho);
noecho = withecho;
noecho.c_lflag &= ~ECHO;
tcsetattr(fd, TCSANOW, &noecho);
#else /* HAVE_TERMIOS_H */
#ifdef HAVE_TERMIO_H
ioctl(fd, TCGETA, &withecho);
noecho = withecho;
noecho.c_lflag &= ~ECHO;
ioctl(fd, TCSETA, &noecho);
#else /* HAVE_TERMIO_H */
/* neither HAVE_TERMIO_H nor HAVE_TERMIOS_H, we can't disable echo! */
(void)fd; /* prevent compiler warning on unused variable */
return FALSE; /* not disabled */
#endif
#endif
return TRUE; /* disabled */
}
else {
/* re-enable echo, assumes we disabled it before (and set the structs we
now use to reset the terminal status) */
#ifdef HAVE_TERMIOS_H
tcsetattr(fd, TCSAFLUSH, &withecho);
#else /* HAVE_TERMIOS_H */
#ifdef HAVE_TERMIO_H
ioctl(fd, TCSETA, &withecho);
#else
/* neither HAVE_TERMIO_H nor HAVE_TERMIOS_H */
return FALSE; /* not enabled */
#endif
#endif
return TRUE; /* enabled */
}
}
char *getpass_r(const char *prompt, /* prompt to display */
char *password, /* buffer to store password in */
size_t buflen) /* size of buffer to store password in */
{
ssize_t nread;
bool disabled;
int fd=open("/dev/tty", O_RDONLY);
if(-1 == fd)
fd = 1; /* use stdin if the tty couldn't be used */
disabled = ttyecho(FALSE, fd); /* disable terminal echo */
fputs(prompt, stderr);
nread=read(fd, password, buflen);
if(nread > 0)
password[--nread]=0; /* zero terminate where enter is stored */
else
password[0]=0; /* got nothing */
if(disabled) {
/* if echo actually was disabled, add a newline */
fputs("\n", stderr);
ttyecho(TRUE, fd); /* enable echo */
}
if(1 != fd)
close(fd);
return password; /* return pointer to buffer */
}
#endif /* DONE */
#endif /* HAVE_GETPASS_R */
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