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📄 Makefile.in(1.77 KB)
📄 arc4random.c(7.06 KB)
📄 base64.c(10.25 KB)
📄 base64.h(2.69 KB)
📄 basename.c(1.78 KB)
📄 bcrypt_pbkdf.c(5.38 KB)
📄 bindresvport.c(3.24 KB)
📄 blf.h(3.49 KB)
📄 blowfish.c(23.11 KB)
📄 bsd-asprintf.c(2.31 KB)
📄 bsd-closefrom.c(2.84 KB)
📄 bsd-cygwin_util.c(3.15 KB)
📄 bsd-cygwin_util.h(2.34 KB)
📄 bsd-err.c(2.15 KB)
📄 bsd-flock.c(2.23 KB)
📄 bsd-getline.c(2.9 KB)
📄 bsd-getpagesize.c(463 B)
📄 bsd-getpeereid.c(1.68 KB)
📄 bsd-malloc.c(1.4 KB)
📄 bsd-misc.c(5.88 KB)
📄 bsd-misc.h(3.61 KB)
📄 bsd-nextstep.c(2.5 KB)
📄 bsd-nextstep.h(2.22 KB)
📄 bsd-openpty.c(4.92 KB)
📄 bsd-poll.c(2.91 KB)
📄 bsd-poll.h(2.06 KB)
📄 bsd-setres_id.c(2.34 KB)
📄 bsd-setres_id.h(930 B)
📄 bsd-signal.c(1.55 KB)
📄 bsd-signal.h(1.15 KB)
📄 bsd-snprintf.c(20.58 KB)
📄 bsd-statvfs.c(2.09 KB)
📄 bsd-statvfs.h(2.24 KB)
📄 bsd-waitpid.c(1.77 KB)
📄 bsd-waitpid.h(2.02 KB)
📄 chacha_private.h(5.26 KB)
📄 charclass.h(702 B)
📄 daemon.c(2.32 KB)
📄 dirname.c(1.87 KB)
📄 explicit_bzero.c(1.09 KB)
📄 fake-rfc2553.c(6.15 KB)
📄 fake-rfc2553.h(5.2 KB)
📄 fmt_scaled.c(7.69 KB)
📄 freezero.c(1.01 KB)
📄 getcwd.c(5.95 KB)
📄 getgrouplist.c(2.7 KB)
📄 getopt.h(2.71 KB)
📄 getopt_long.c(14.46 KB)
📄 getrrsetbyname-ldns.c(7.81 KB)
📄 getrrsetbyname.c(13.56 KB)
📄 getrrsetbyname.h(3.62 KB)
📄 glob.c(25.53 KB)
📄 glob.h(4.54 KB)
📄 inet_aton.c(5.23 KB)
📄 inet_ntoa.c(2.21 KB)
📄 inet_ntop.c(5.42 KB)
📄 kludge-fd_set.c(882 B)
📄 libressl-api-compat.c(16.19 KB)
📄 md5.c(7.83 KB)
📄 md5.h(1.85 KB)
📄 mktemp.c(3.14 KB)
📄 openbsd-compat.h(8.68 KB)
📄 openssl-compat.c(2.43 KB)
📄 openssl-compat.h(7.22 KB)
📄 port-aix.c(12.61 KB)
📄 port-aix.h(4.22 KB)
📄 port-irix.c(2.94 KB)
📄 port-irix.h(1.65 KB)
📄 port-linux.c(7.66 KB)
📄 port-linux.h(1.18 KB)
📄 port-net.c(8.33 KB)
📄 port-net.h(1.58 KB)
📄 port-solaris.c(9.56 KB)
📄 port-solaris.h(1.27 KB)
📄 port-uw.c(4.16 KB)
📄 port-uw.h(1.37 KB)
📄 pwcache.c(3.22 KB)
📄 readpassphrase.c(5.79 KB)
📄 readpassphrase.h(1.75 KB)
📄 reallocarray.c(1.49 KB)
📄 realpath.c(6.08 KB)
📄 recallocarray.c(2.4 KB)
📁 regress
📄 rmd160.c(11.72 KB)
📄 rmd160.h(2.81 KB)
📄 rresvport.c(2.97 KB)
📄 setenv.c(5.76 KB)
📄 setproctitle.c(4.55 KB)
📄 sha1.c(5.18 KB)
📄 sha1.h(2.23 KB)
📄 sha2.c(24.88 KB)
📄 sha2.h(5.66 KB)
📄 sigact.c(3.82 KB)
📄 sigact.h(3.66 KB)
📄 strcasestr.c(2.35 KB)
📄 strlcat.c(1.76 KB)
📄 strlcpy.c(1.64 KB)
📄 strmode.c(3.38 KB)
📄 strndup.c(1.27 KB)
📄 strnlen.c(1.18 KB)
📄 strptime.c(9.28 KB)
📄 strsep.c(2.59 KB)
📄 strtoll.c(4.29 KB)
📄 strtonum.c(1.85 KB)
📄 strtoul.c(3.07 KB)
📄 strtoull.c(3.13 KB)
📄 sys-queue.h(21.04 KB)
📄 sys-tree.h(24.68 KB)
📄 timingsafe_bcmp.c(1.17 KB)
📄 vis.c(5.97 KB)
📄 vis.h(3.57 KB)
📄 xcrypt.c(4.26 KB)

Editing: readpassphrase.c

/*	$OpenBSD: readpassphrase.c,v 1.26 2016/10/18 12:47:18 millert Exp $	*/

/*
 * Copyright (c) 2000-2002, 2007, 2010
 *	Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * Sponsored in part by the Defense Advanced Research Projects
 * Agency (DARPA) and Air Force Research Laboratory, Air Force
 * Materiel Command, USAF, under agreement number F39502-99-1-0512.
 */

/* OPENBSD ORIGINAL: lib/libc/gen/readpassphrase.c */

#include "includes.h"

#ifndef HAVE_READPASSPHRASE

#include <termios.h>
#include <signal.h>
#include <ctype.h>
#include <fcntl.h>
#include <readpassphrase.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>

#ifndef TCSASOFT
/* If we don't have TCSASOFT define it so that ORing it it below is a no-op. */
# define TCSASOFT 0
#endif

/* SunOS 4.x which lacks _POSIX_VDISABLE, but has VDISABLE */
#if !defined(_POSIX_VDISABLE) && defined(VDISABLE)
#  define _POSIX_VDISABLE       VDISABLE
#endif

static volatile sig_atomic_t signo[_NSIG];

static void handler(int);

char *
readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags)
{
	ssize_t nr;
	int input, output, save_errno, i, need_restart;
	char ch, *p, *end;
	struct termios term, oterm;
	struct sigaction sa, savealrm, saveint, savehup, savequit, saveterm;
	struct sigaction savetstp, savettin, savettou, savepipe;

/* I suppose we could alloc on demand in this case (XXX). */
	if (bufsiz == 0) {
		errno = EINVAL;
		return(NULL);
	}

restart:
	for (i = 0; i < _NSIG; i++)
		signo[i] = 0;
	nr = -1;
	save_errno = 0;
	need_restart = 0;
	/*
	 * Read and write to /dev/tty if available.  If not, read from
	 * stdin and write to stderr unless a tty is required.
	 */
	if ((flags & RPP_STDIN) ||
	    (input = output = open(_PATH_TTY, O_RDWR)) == -1) {
		if (flags & RPP_REQUIRE_TTY) {
			errno = ENOTTY;
			return(NULL);
		}
		input = STDIN_FILENO;
		output = STDERR_FILENO;
	}

/*
	 * Turn off echo if possible.
	 * If we are using a tty but are not the foreground pgrp this will
	 * generate SIGTTOU, so do it *before* installing the signal handlers.
	 */
	if (input != STDIN_FILENO && tcgetattr(input, &oterm) == 0) {
		memcpy(&term, &oterm, sizeof(term));
		if (!(flags & RPP_ECHO_ON))
			term.c_lflag &= ~(ECHO | ECHONL);
#ifdef VSTATUS
		if (term.c_cc[VSTATUS] != _POSIX_VDISABLE)
			term.c_cc[VSTATUS] = _POSIX_VDISABLE;
#endif
		(void)tcsetattr(input, TCSAFLUSH|TCSASOFT, &term);
	} else {
		memset(&term, 0, sizeof(term));
		term.c_lflag |= ECHO;
		memset(&oterm, 0, sizeof(oterm));
		oterm.c_lflag |= ECHO;
	}

/*
	 * Catch signals that would otherwise cause the user to end
	 * up with echo turned off in the shell.  Don't worry about
	 * things like SIGXCPU and SIGVTALRM for now.
	 */
	sigemptyset(&sa.sa_mask);
	sa.sa_flags = 0;		/* don't restart system calls */
	sa.sa_handler = handler;
	(void)sigaction(SIGALRM, &sa, &savealrm);
	(void)sigaction(SIGHUP, &sa, &savehup);
	(void)sigaction(SIGINT, &sa, &saveint);
	(void)sigaction(SIGPIPE, &sa, &savepipe);
	(void)sigaction(SIGQUIT, &sa, &savequit);
	(void)sigaction(SIGTERM, &sa, &saveterm);
	(void)sigaction(SIGTSTP, &sa, &savetstp);
	(void)sigaction(SIGTTIN, &sa, &savettin);
	(void)sigaction(SIGTTOU, &sa, &savettou);

if (!(flags & RPP_STDIN))
		(void)write(output, prompt, strlen(prompt));
	end = buf + bufsiz - 1;
	p = buf;
	while ((nr = read(input, &ch, 1)) == 1 && ch != '\n' && ch != '\r') {
		if (p < end) {
			if ((flags & RPP_SEVENBIT))
				ch &= 0x7f;
			if (isalpha((unsigned char)ch)) {
				if ((flags & RPP_FORCELOWER))
					ch = (char)tolower((unsigned char)ch);
				if ((flags & RPP_FORCEUPPER))
					ch = (char)toupper((unsigned char)ch);
			}
			*p++ = ch;
		}
	}
	*p = '\0';
	save_errno = errno;
	if (!(term.c_lflag & ECHO))
		(void)write(output, "\n", 1);

/* Restore old terminal settings and signals. */
	if (memcmp(&term, &oterm, sizeof(term)) != 0) {
		const int sigttou = signo[SIGTTOU];

/* Ignore SIGTTOU generated when we are not the fg pgrp. */
		while (tcsetattr(input, TCSAFLUSH|TCSASOFT, &oterm) == -1 &&
		    errno == EINTR && !signo[SIGTTOU])
			continue;
		signo[SIGTTOU] = sigttou;
	}
	(void)sigaction(SIGALRM, &savealrm, NULL);
	(void)sigaction(SIGHUP, &savehup, NULL);
	(void)sigaction(SIGINT, &saveint, NULL);
	(void)sigaction(SIGQUIT, &savequit, NULL);
	(void)sigaction(SIGPIPE, &savepipe, NULL);
	(void)sigaction(SIGTERM, &saveterm, NULL);
	(void)sigaction(SIGTSTP, &savetstp, NULL);
	(void)sigaction(SIGTTIN, &savettin, NULL);
	(void)sigaction(SIGTTOU, &savettou, NULL);
	if (input != STDIN_FILENO)
		(void)close(input);

/*
	 * If we were interrupted by a signal, resend it to ourselves
	 * now that we have restored the signal handlers.
	 */
	for (i = 0; i < _NSIG; i++) {
		if (signo[i]) {
			kill(getpid(), i);
			switch (i) {
			case SIGTSTP:
			case SIGTTIN:
			case SIGTTOU:
				need_restart = 1;
			}
		}
	}
	if (need_restart)
		goto restart;

if (save_errno)
		errno = save_errno;
	return(nr == -1 ? NULL : buf);
}
DEF_WEAK(readpassphrase);

#if 0
char *
getpass(const char *prompt)
{
	static char buf[_PASSWORD_LEN + 1];

return(readpassphrase(prompt, buf, sizeof(buf), RPP_ECHO_OFF));
}
#endif

static void handler(int s)
{

signo[s] = 1;
}
#endif /* HAVE_READPASSPHRASE */

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Editing: readpassphrase.c

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