readpass.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* Copyright (c) 2001 Markus Friedl. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
RCSID("$OpenBSD: readpass.c,v 1.27 2002/03/26 15:58:46 markus Exp $");
#pragma ident "%Z%%M% %I% %E% SMI"
#include "xmalloc.h"
#include "readpass.h"
#include "pathnames.h"
#include "log.h"
#include "ssh.h"
static char *
{
char *pass;
char buf[1024];
fatal("internal error: askpass undefined");
if (pipe(p) < 0) {
return xstrdup("");
}
return xstrdup("");
}
if (pid == 0) {
close(p[0]);
}
close(p[1]);
do {
continue;
if (ret <= 0)
break;
close(p[0]);
break;
return pass;
}
/*
* passphrase (allocated with xmalloc). Exits if EOF is encountered. If
* RP_ALLOW_STDIN is set, the passphrase will be read from stdin if no
* tty is available
*/
char *
{
if (flags & RP_ALLOW_STDIN) {
if (!isatty(STDIN_FILENO))
use_askpass = 1;
} else {
if (ttyfd >= 0)
else
use_askpass = 1;
}
if (getenv(SSH_ASKPASS_ENV))
else
}
if (flags & RP_ALLOW_EOF)
return NULL;
return xstrdup("");
}
return ret;
}