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-rw-r--r--cli.c233
1 files changed, 0 insertions, 233 deletions
diff --git a/cli.c b/cli.c
deleted file mode 100644
index 6a582569..00000000
--- a/cli.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/* $OpenBSD: cli.c,v 1.13 2001/05/06 21:23:31 markus Exp $ */
-
-/*
- * Copyright (c) 2000 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
- * documentation and/or other materials provided with the distribution.
- *
- * 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: cli.c,v 1.13 2001/05/06 21:23:31 markus Exp $");
-
-#include "xmalloc.h"
-#include "log.h"
-#include "cli.h"
-
-static int cli_input = -1;
-static int cli_output = -1;
-static int cli_from_stdin = 0;
-
-sigset_t oset;
-sigset_t nset;
-struct sigaction nsa;
-struct sigaction osa;
-struct termios ntio;
-struct termios otio;
-int echo_modified;
-
-volatile int intr;
-
-static int
-cli_open(int from_stdin)
-{
- if (cli_input >= 0 && cli_output >= 0 && cli_from_stdin == from_stdin)
- return 1;
-
- if (from_stdin) {
- if (!cli_from_stdin && cli_input >= 0) {
- (void)close(cli_input);
- }
- cli_input = STDIN_FILENO;
- cli_output = STDERR_FILENO;
- } else {
- cli_input = cli_output = open(_PATH_TTY, O_RDWR);
- if (cli_input < 0)
- fatal("You have no controlling tty. Cannot read passphrase.");
- }
-
- cli_from_stdin = from_stdin;
-
- return cli_input >= 0 && cli_output >= 0 && cli_from_stdin == from_stdin;
-}
-
-static void
-cli_close(void)
-{
- if (!cli_from_stdin && cli_input >= 0)
- close(cli_input);
- cli_input = -1;
- cli_output = -1;
- cli_from_stdin = 0;
- return;
-}
-
-void
-intrcatch(int sig)
-{
- intr = 1;
-}
-
-static void
-cli_echo_disable(void)
-{
- sigemptyset(&nset);
- sigaddset(&nset, SIGTSTP);
- (void) sigprocmask(SIG_BLOCK, &nset, &oset);
-
- intr = 0;
-
- memset(&nsa, 0, sizeof(nsa));
- nsa.sa_handler = intrcatch;
- (void) sigaction(SIGINT, &nsa, &osa);
-
- echo_modified = 0;
- if (tcgetattr(cli_input, &otio) == 0 && (otio.c_lflag & ECHO)) {
- echo_modified = 1;
- ntio = otio;
- ntio.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
- (void) tcsetattr(cli_input, TCSANOW, &ntio);
- }
- return;
-}
-
-static void
-cli_echo_restore(void)
-{
- if (echo_modified != 0) {
- tcsetattr(cli_input, TCSANOW, &otio);
- echo_modified = 0;
- }
-
- (void) sigprocmask(SIG_SETMASK, &oset, NULL);
- (void) sigaction(SIGINT, &osa, NULL);
-
- if (intr != 0) {
- kill(getpid(), SIGINT);
- sigemptyset(&nset);
- /* XXX tty has not neccessarily drained by now? */
- sigsuspend(&nset);
- intr = 0;
- }
- return;
-}
-
-static int
-cli_read(char* buf, int size, int echo)
-{
- char ch = 0;
- int i = 0;
- int n;
-
- if (!echo)
- cli_echo_disable();
-
- while (ch != '\n') {
- n = read(cli_input, &ch, 1);
- if (intr)
- break;
- if (n == -1 && (errno == EAGAIN || errno == EINTR))
- continue;
- if (n != 1)
- break;
- if (ch == '\n')
- break;
- if (i < size - 1)
- buf[i++] = ch;
- }
- if (intr)
- i = 0;
- buf[i] = '\0';
-
- if (!echo)
- cli_echo_restore();
- if (!intr && !echo)
- (void) write(cli_output, "\n", 1);
- return i;
-}
-
-static int
-cli_write(const char* buf, int size)
-{
- int i, len, pos, ret = 0;
- char *output, *p;
-
- output = xmalloc(4*size);
- for (p = output, i = 0; i < size; i++) {
- if (buf[i] == '\n' || buf[i] == '\r')
- *p++ = buf[i];
- else
- p = vis(p, buf[i], 0, 0);
- }
- len = p - output;
-
- for (pos = 0; pos < len; pos += ret) {
- ret = write(cli_output, output + pos, len - pos);
- if (ret == -1) {
- xfree(output);
- return -1;
- }
- }
- xfree(output);
- return 0;
-}
-
-/*
- * Presents a prompt and returns the response allocated with xmalloc().
- * Uses /dev/tty or stdin/out depending on arg. Optionally disables echo
- * of response depending on arg. Tries to ensure that no other userland
- * buffer is storing the response.
- */
-char*
-cli_read_passphrase(const char* prompt, int from_stdin, int echo_enable)
-{
- char buf[BUFSIZ];
- char* p;
-
- if (!cli_open(from_stdin))
- fatal("Cannot read passphrase.");
-
- fflush(stdout);
-
- cli_write(prompt, strlen(prompt));
- cli_read(buf, sizeof buf, echo_enable);
-
- cli_close();
-
- p = xstrdup(buf);
- memset(buf, 0, sizeof(buf));
- return (p);
-}
-
-char*
-cli_prompt(char* prompt, int echo_enable)
-{
- return cli_read_passphrase(prompt, 0, echo_enable);
-}
-
-void
-cli_mesg(char* mesg)
-{
- cli_open(0);
- cli_write(mesg, strlen(mesg));
- cli_write("\n", strlen("\n"));
- cli_close();
- return;
-}