diff options
Diffstat (limited to 'src/gl/getpass.c')
| -rw-r--r-- | src/gl/getpass.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/src/gl/getpass.c b/src/gl/getpass.c deleted file mode 100644 index 3360fa2935..0000000000 --- a/src/gl/getpass.c +++ /dev/null @@ -1,231 +0,0 @@ -/* Copyright (C) 1992-2001, 2003-2007, 2009-2016 Free Software Foundation, Inc. - - This file is part of the GNU C Library. - - 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; either version 3, or (at your option) - any later version. - - 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, see <http://www.gnu.org/licenses/>. */ - -#ifndef _LIBC -# include <config.h> -#endif - -#include "getpass.h" - -#include <stdio.h> - -#if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) - -# include <stdbool.h> - -# if HAVE_DECL___FSETLOCKING && HAVE___FSETLOCKING -# if HAVE_STDIO_EXT_H -# include <stdio_ext.h> -# endif -# else -# define __fsetlocking(stream, type) /* empty */ -# endif - -# if HAVE_TERMIOS_H -# include <termios.h> -# endif - -# if USE_UNLOCKED_IO -# include "unlocked-io.h" -# else -# if !HAVE_DECL_FFLUSH_UNLOCKED -# undef fflush_unlocked -# define fflush_unlocked(x) fflush (x) -# endif -# if !HAVE_DECL_FLOCKFILE -# undef flockfile -# define flockfile(x) ((void) 0) -# endif -# if !HAVE_DECL_FUNLOCKFILE -# undef funlockfile -# define funlockfile(x) ((void) 0) -# endif -# if !HAVE_DECL_FPUTS_UNLOCKED -# undef fputs_unlocked -# define fputs_unlocked(str,stream) fputs (str, stream) -# endif -# if !HAVE_DECL_PUTC_UNLOCKED -# undef putc_unlocked -# define putc_unlocked(c,stream) putc (c, stream) -# endif -# 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 - -static void -call_fclose (void *arg) -{ - if (arg != NULL) - fclose (arg); -} - -char * -getpass (const char *prompt) -{ - FILE *tty; - FILE *in, *out; -# if HAVE_TCGETATTR - struct termios s, t; -# endif - bool tty_changed = false; - static char *buf; - static size_t bufsize; - 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. */ - - tty = fopen ("/dev/tty", "w+"); - if (tty == NULL) - { - in = stdin; - out = stderr; - } - else - { - /* We do the locking ourselves. */ - __fsetlocking (tty, FSETLOCKING_BYCALLER); - - out = in = tty; - } - - flockfile (out); - - /* Turn echoing off if it is on now. */ -# if HAVE_TCGETATTR - 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); - } -# endif - - /* Write the prompt. */ - fputs_unlocked (prompt, out); - fflush_unlocked (out); - - /* Read the password. */ - nread = getline (&buf, &bufsize, in); - - /* According to the C standard, input may not be followed by output - on the same stream without an intervening call to a file - positioning function. Suppose in == out; then without this fseek - call, on Solaris, HP-UX, AIX, OSF/1, the previous input gets - echoed, whereas on IRIX, the following newline is not output as - it should be. POSIX imposes similar restrictions if fileno (in) - == fileno (out). The POSIX restrictions are tricky and change - from POSIX version to POSIX version, so play it safe and invoke - fseek even if in != out. */ - fseeko (out, 0, SEEK_CUR); - - 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 HAVE_TCSETATTR - if (tty_changed) - tcsetattr (fileno (in), TCSAFLUSH | TCSASOFT, &s); -# endif - - funlockfile (out); - - call_fclose (tty); - - return buf; -} - -#else /* W32 native */ - -/* Windows implementation by Martin Lambers <marlam@marlam.de>, - improved by Simon Josefsson. */ - -/* For PASS_MAX. */ -# include <limits.h> -/* For _getch(). */ -# include <conio.h> -/* For strdup(). */ -# include <string.h> - -# ifndef PASS_MAX -# define PASS_MAX 512 -# endif - -char * -getpass (const char *prompt) -{ - char getpassbuf[PASS_MAX + 1]; - size_t i = 0; - int c; - - if (prompt) - { - fputs (prompt, stderr); - fflush (stderr); - } - - for (;;) - { - c = _getch (); - if (c == '\r') - { - getpassbuf[i] = '\0'; - break; - } - else if (i < PASS_MAX) - { - getpassbuf[i++] = c; - } - - if (i >= PASS_MAX) - { - getpassbuf[i] = '\0'; - break; - } - } - - if (prompt) - { - fputs ("\r\n", stderr); - fflush (stderr); - } - - return strdup (getpassbuf); -} -#endif |