Vender import of BIND 9.3.0rc4.

1 files changed, 126 insertions, 0 deletions

diff --git a/contrib/bind9/lib/isc/unix/keyboard.c b/contrib/bind9/lib/isc/unix/keyboard.c
new file mode 100644
index 0000000..146338a
--- /dev/null
+++ b/contrib/bind9/lib/isc/unix/keyboard.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000, 2001  Internet Software Consortium.
+ *
+ * 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 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 1.9.12.3 2004/03/08 09:04:56 marka 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, &current_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));
+}