diff options
Diffstat (limited to 'usr.sbin/bind/lib/isc/unix/keyboard.c')
| -rw-r--r-- | usr.sbin/bind/lib/isc/unix/keyboard.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/usr.sbin/bind/lib/isc/unix/keyboard.c b/usr.sbin/bind/lib/isc/unix/keyboard.c deleted file mode 100644 index c241d1840da..00000000000 --- a/usr.sbin/bind/lib/isc/unix/keyboard.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * Copyright (C) Internet Systems Consortium, Inc. ("ISC") - * - * Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH - * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS. IN NO EVENT SHALL ISC 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. - */ - -/* $Id: keyboard.c,v 1.3 2019/12/17 01:46:37 sthen Exp $ */ - -#include <config.h> - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/uio.h> - -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <termios.h> -#include <unistd.h> -#include <fcntl.h> - -#include <isc/keyboard.h> -#include <isc/util.h> - -isc_result_t -isc_keyboard_open(isc_keyboard_t *keyboard) { - int fd; - isc_result_t ret; - struct termios current_mode; - - REQUIRE(keyboard != NULL); - - fd = open("/dev/tty", O_RDONLY, 0); - if (fd < 0) - return (ISC_R_IOERROR); - - keyboard->fd = fd; - - if (tcgetattr(fd, &keyboard->saved_mode) < 0) { - ret = ISC_R_IOERROR; - goto errout; - } - - current_mode = keyboard->saved_mode; - - current_mode.c_iflag &= - ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); - current_mode.c_oflag &= ~OPOST; - current_mode.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); - current_mode.c_cflag &= ~(CSIZE|PARENB); - current_mode.c_cflag |= CS8; - - current_mode.c_cc[VMIN] = 1; - current_mode.c_cc[VTIME] = 0; - if (tcsetattr(fd, TCSAFLUSH, ¤t_mode) < 0) { - ret = ISC_R_IOERROR; - goto errout; - } - - keyboard->result = ISC_R_SUCCESS; - - return (ISC_R_SUCCESS); - - errout: - close (fd); - - return (ret); -} - -isc_result_t -isc_keyboard_close(isc_keyboard_t *keyboard, unsigned int sleeptime) { - REQUIRE(keyboard != NULL); - - if (sleeptime > 0 && keyboard->result != ISC_R_CANCELED) - (void)sleep(sleeptime); - - (void)tcsetattr(keyboard->fd, TCSAFLUSH, &keyboard->saved_mode); - (void)close(keyboard->fd); - - keyboard->fd = -1; - - return (ISC_R_SUCCESS); -} - -isc_result_t -isc_keyboard_getchar(isc_keyboard_t *keyboard, unsigned char *cp) { - ssize_t cc; - unsigned char c; - cc_t *controlchars; - - REQUIRE(keyboard != NULL); - REQUIRE(cp != NULL); - - cc = read(keyboard->fd, &c, 1); - if (cc < 0) { - keyboard->result = ISC_R_IOERROR; - return (keyboard->result); - } - - controlchars = keyboard->saved_mode.c_cc; - if (c == controlchars[VINTR] || c == controlchars[VQUIT]) { - keyboard->result = ISC_R_CANCELED; - return (keyboard->result); - } - - *cp = c; - - return (ISC_R_SUCCESS); -} - -isc_boolean_t -isc_keyboard_canceled(isc_keyboard_t *keyboard) { - return (ISC_TF(keyboard->result == ISC_R_CANCELED)); -} |