add keyboard API

bin/tests/.cvsignore

@@ -17,6 +17,7 @@ gxbn_test
 headerdep_test.sh
 hash_test
 inter_test
+keyboard_test
 lex_test
 lfsr_test
 log_test

bin/tests/Makefile.in

@@ -56,6 +56,7 @@ XTARGETS =	adb_test \
 		hash_test \
 		fsaccess_test \
 		inter_test \
+		keyboard_test \
 		lex_test \
 		lfsr_test \
 		log_test \
@@ -97,6 +98,7 @@ SRCS =		adb_test.c \
 		hash_test.c \
 		fsaccess_test.c \
 		inter_test.c \
+		keyboard_test.c \
 		lex_test.c \
 		lfsr_test.c \
 		log_test.c \
@@ -273,6 +275,10 @@ inter_test: inter_test.@O@ ${ISCDEPLIBS}
 	${LIBTOOL} ${CC} ${CFLAGS} -o $@ inter_test.@O@ \
 		${ISCLIBS} ${LIBS}
 
+keyboard_test: keyboard_test.@O@ ${ISCDEPLIBS}
+	${LIBTOOL} ${CC} ${CFLAGS} -o $@ keyboard_test.@O@ \
+		${ISCLIBS} ${LIBS}
+
 lwresconf_test: lwresconf_test.@O@ ${ISCDEPLIBS} ${LWRESDEPLIBS}
 	${LIBTOOL} ${CC} ${CFLAGS} -o $@ lwresconf_test.@O@ \
 		${LWRESLIBS} ${ISCLIBS} ${LIBS}

bin/tests/keyboard_test.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2000  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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM 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.
+ */
+
+#include <isc/keyboard.h>
+#include <isc/util.h>
+
+#include <stdio.h>
+
+static void
+CHECK(const char *msg, isc_result_t result) {
+	if (result != ISC_R_SUCCESS) {
+		printf("FAILURE:  %s:  %s\n", msg, isc_result_totext(result));
+		exit(1);
+	}
+}
+
+int
+main(int argc, char **argv) {
+	isc_keyboard_t kbd;
+	unsigned char c;
+	isc_result_t res;
+	unsigned int count;
+
+	UNUSED(argc);
+	UNUSED(argv);
+
+	printf("Type Q to exit.\n");
+
+	res = isc_keyboard_open(&kbd);
+	CHECK("isc_keyboard_open()", res);
+
+	c = 'x';
+	count = 0;
+	while (res == ISC_R_SUCCESS && c != 'Q') {
+		res = isc_keyboard_getchar(&kbd, &c);
+		printf(".");
+		fflush(stdout);
+		count++;
+		if (count % 64 == 0)
+			printf("\r\n");
+	}
+	printf("\r\n");
+	if (res != ISC_R_SUCCESS) {
+		printf("FAILURE:  keyboard close failed:  %s\r\n",
+		       isc_result_totext(res));
+		goto errout;
+	}
+
+ errout:
+	res = isc_keyboard_close(&kbd);
+	CHECK("isc_keyboard_close()", res);
+
+	return (0);
+}
+

lib/isc/Makefile.in

@@ -32,8 +32,8 @@ CWARNINGS =
 UNIXOBJS =	@ISC_ISCIPV6_O@ \
 		unix/app.@O@ unix/dir.@O@ unix/entropy.@O@ \
 		unix/errno2result.@O@ unix/file.@O@ unix/fsaccess.@O@ \
-		unix/interfaceiter.@O@ unix/net.@O@ unix/socket.@O@ \
-		unix/time.@O@ unix/stdio.@O@ unix/stdtime.@O@
+		unix/interfaceiter.@O@ unix/keyboard.@O@ unix/net.@O@ \
+		unix/socket.@O@ unix/time.@O@ unix/stdio.@O@ unix/stdtime.@O@
 
 
 NLSOBJS =	nls/msgcat.@O@

lib/isc/unix/Makefile.in

@@ -29,14 +29,14 @@ CWARNINGS =
 # Alphabetically
 OBJS =		@ISC_IPV6_O@ \
 		app.@O@ dir.@O@ entropy.@O@ errno2result.@O@ file.@O@ \
-		fsaccess.@O@ interfaceiter.@O@ net.@O@ socket.@O@ stdio.@O@ \
-		stdtime.@O@ time.@O@
+		fsaccess.@O@ interfaceiter.@O@ keyboard.@O@ net.@O@ \
+		socket.@O@ stdio.@O@ stdtime.@O@ time.@O@
 
 # Alphabetically
 SRCS =		@ISC_IPV6_C@ \
 		app.c dir.c entropy.c errno2result.c file.c \
-		fsaccess.c interfaceiter.c net.c socket.c stdio.c \
-		stdtime.c time.c
+		fsaccess.c interfaceiter.c keyboard.c net.c \
+		socket.c stdio.c stdtime.c time.c
 
 SUBDIRS =	include
 TARGETS =	${OBJS}

lib/isc/unix/include/isc/keyboard.h

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2000  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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM 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.h,v 1.1 2000/06/21 01:45:21 explorer Exp $ */
+
+#ifndef ISC_KEYBOARD_H
+#define ISC_KEYBOARD_H 1
+
+#include <termios.h>
+
+#include <isc/lang.h>
+#include <isc/result.h>
+
+ISC_LANG_BEGINDECLS
+
+typedef struct {
+	int fd;
+	struct termios saved_mode;
+} isc_keyboard_t;
+
+isc_result_t
+isc_keyboard_open(isc_keyboard_t *keyboard);
+
+isc_result_t
+isc_keyboard_close(isc_keyboard_t *keyboard);
+
+isc_result_t
+isc_keyboard_getchar(isc_keyboard_t *keyboard, unsigned char *cp);
+
+ISC_LANG_ENDDECLS
+
+#endif /* ISC_KEYBOARD_H */

lib/isc/unix/keyboard.c

@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2000  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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM 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.
+ */
+
+#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;
+
+	cfmakeraw(&current_mode);
+	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;
+	}
+
+	return (ISC_R_SUCCESS);
+
+ errout:
+	close (fd);
+
+	return (ret);
+}
+
+isc_result_t
+isc_keyboard_close(isc_keyboard_t *keyboard) {
+	REQUIRE(keyboard != NULL);
+
+	(void)tcsetattr(keyboard->fd, TCSAFLUSH, &keyboard->saved_mode);
+	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;
+
+	REQUIRE(keyboard != NULL);
+	REQUIRE(cp != NULL);
+
+	cc = read(keyboard->fd, &c, 1);
+	if (cc < 0)
+		return (ISC_R_IOERROR);
+
+	*cp = c;
+
+	return (ISC_R_SUCCESS);
+}