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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /misc/getpass.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.bz2 glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'misc/getpass.c')
-rw-r--r-- | misc/getpass.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/misc/getpass.c b/misc/getpass.c deleted file mode 100644 index 89c783fe20..0000000000 --- a/misc/getpass.c +++ /dev/null @@ -1,124 +0,0 @@ -/* Copyright (C) 1992-2017 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <stdio.h> -#include <stdio_ext.h> -#include <string.h> /* For string function builtin redirect. */ -#include <termios.h> -#include <unistd.h> - -#include <wchar.h> -#define flockfile(s) _IO_flockfile (s) -#define funlockfile(s) _IO_funlockfile (s) -#include <libc-lock.h> - -/* 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 *in, *out; - struct termios s, t; - int tty_changed; - 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. */ - - in = fopen ("/dev/tty", "w+ce"); - if (in == NULL) - { - in = stdin; - out = stderr; - } - else - { - /* We do the locking ourselves. */ - __fsetlocking (in, FSETLOCKING_BYCALLER); - - out = in; - } - - /* Make sure the stream we opened is closed even if the thread is - canceled. */ - __libc_cleanup_push (call_fclose, in == out ? in : NULL); - - 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. */ - __fxprintf (out, "%s", prompt); - __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. */ - __fxprintf (out, "\n"); - } - } - - /* Restore the original setting. */ - if (tty_changed) - (void) tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &s); - - funlockfile (out); - - __libc_cleanup_pop (0); - - if (in != stdin) - /* We opened the terminal; now close it. */ - fclose (in); - - return buf; -} |