glibc/misc/getpass.c
Ulrich Drepper 6e4c40baac Update.
1998-09-09 09:32  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/powerpc/dl-machine.h (elf_machine_rela): Make function
	inline.

1998-09-07  Paul Eggert  <eggert@twinsun.com>

	* time/mktime.c (__EXTENSIONS__): Define if not defined.
	(_REENTRANT): Remove.  It has undesirable consequences in
	Solaris 2.6 (e.g. it turns off the putc macro).  Defining
	__EXTENSIONS__ makes localtime_r and gmtime_r visible, which
	is what we want.
	* time/strftime.c: Likewise.

1998-09-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/dl-error.c: Fix spelling.

1998-09-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdlib/strfmon.c: Quiet -Wparentheses warnings.
	* stdio-common/_itoa.c: Likewise.
	* stdio-common/printf_fp.c: Likewise.
	* stdio-common/vfscanf.c: Likewise.
	* wcsmbs/wcstok.c: Likewise.
	* sysdeps/generic/glob.c: Likewise.
	* posix/getopt.c: Likewise.
	* sysdeps/posix/getaddrinfo.c: Likewise.
	* posix/wordexp.c: Likewise.
	* io/ftw.c: Likewise.
	* io/fts.c: Likewise.
	* misc/getpass.c: Likewise.
	* iconv/gconv_conf.c: Likewise.
	* argp/argp-fmtstream.c: Likewise.
	* argp/argp-help.c: Likewise.
	* elf/dl-load.c: Likewise.
	* locale/programs/stringtrans.c: Likewise.
	* catgets/gencat.c: Likewise.
	* posix/getconf.c: Likewise.
	* iconv/gconv_conf.c: Likewise.
	* iconv/iconv_prog.c: Likewise.

	* string/strcoll.c: Optimize a few expressions.
	* string/strxfrm.c: Likewise.

1998-09-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/dl-open.c (dl_open_worker): Move decl of new_global up one
	level to avoid uninit variable warning.

1998-09-09 10:34  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
	instead of _dl_default_scope[2] as argument to _dl_init_next.
	Fix compatibility problems introduced in last change.
1998-09-09 11:53:19 +00:00

107 lines
2.7 KiB
C

/* Copyright (C) 1992, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include <termios.h>
#include <unistd.h>
#ifdef USE_IN_LIBIO
# define flockfile(s) _IO_flockfile (s)
# define funlockfile(s) _IO_funlockfile (s)
#endif
/* It is desirable to use this bit on systems that have it.
The only bit of terminal state we want to twiddle is echoing, which is
done in software; there is no need to change the state of the terminal
hardware. */
#ifndef TCSASOFT
#define TCSASOFT 0
#endif
char *
getpass (prompt)
const char *prompt;
{
FILE *in, *out;
struct termios s, t;
int tty_changed;
static char *buf = NULL;
static size_t bufsize = 0;
ssize_t nread;
/* Try to write to and read from the terminal if we can.
If we can't open the terminal, use stderr and stdin. */
in = fopen ("/dev/tty", "w+");
if (in == NULL)
{
in = stdin;
out = stderr;
}
else
out = in;
flockfile (out);
/* Turn echoing off if it is on now. */
if (__tcgetattr (fileno (in), &t) == 0)
{
/* Save the old one. */
s = t;
/* Tricky, tricky. */
t.c_lflag &= ~(ECHO|ISIG);
tty_changed = (tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &t) == 0);
}
else
tty_changed = 0;
/* Write the prompt. */
fputs_unlocked (prompt, out);
fflush_unlocked (out);
/* Read the password. */
nread = __getline (&buf, &bufsize, in);
if (buf != NULL)
{
if (nread < 0)
buf[0] = '\0';
else if (buf[nread - 1] == '\n')
{
/* Remove the newline. */
buf[nread - 1] = '\0';
if (tty_changed)
/* Write the newline that was not echoed. */
putc_unlocked ('\n', out);
}
}
/* Restore the original setting. */
if (tty_changed)
(void) tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &s);
funlockfile (out);
if (in != stdin)
/* We opened the terminal; now close it. */
fclose (in);
return buf;
}