external/bsd/ntp/dist/lib/isc/win32/keyboard.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
   5  * Copyright (C) 2000, 2001  Internet Software Consortium.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  17  * PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 /* Id: keyboard.c,v 1.7 2007/06/19 23:47:19 tbox Exp */
  21
  22 #include <config.h>
  23
  24 #include <sys/types.h>
  25
  26 #include <windows.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <stdio.h>
  31 #include <unistd.h>
  32 #include <fcntl.h>
  33
  34 #include <io.h>
  35
  36 #include <isc/keyboard.h>
  37 #include <isc/util.h>
  38
  39 isc_result_t
  40 isc_keyboard_open(isc_keyboard_t *keyboard) {
  41         int fd;
  42
  43         REQUIRE(keyboard != NULL);
  44
  45         fd = _fileno(stdin);
  46         if (fd < 0)
  47                 return (ISC_R_IOERROR);
  48
  49         keyboard->fd = fd;
  50
  51         keyboard->result = ISC_R_SUCCESS;
  52
  53         return (ISC_R_SUCCESS);
  54 }
  55
  56 isc_result_t
  57 isc_keyboard_close(isc_keyboard_t *keyboard, unsigned int sleeptime) {
  58         REQUIRE(keyboard != NULL);
  59
  60         if (sleeptime > 0 && keyboard->result != ISC_R_CANCELED)
  61                 (void)Sleep(sleeptime*1000);
  62
  63         keyboard->fd = -1;
  64
  65         return (ISC_R_SUCCESS);
  66 }
  67
  68 isc_result_t
  69 isc_keyboard_getchar(isc_keyboard_t *keyboard, unsigned char *cp) {
  70         ssize_t cc;
  71         unsigned char c;
  72
  73         REQUIRE(keyboard != NULL);
  74         REQUIRE(cp != NULL);
  75
  76         cc = read(keyboard->fd, &c, 1);
  77         if (cc < 0) {
  78                 keyboard->result = ISC_R_IOERROR;
  79                 return (keyboard->result);
  80         }
  81
  82         *cp = c;
  83
  84         return (ISC_R_SUCCESS);
  85 }
  86
  87 isc_boolean_t
  88 isc_keyboard_canceled(isc_keyboard_t *keyboard) {
  89         return (ISC_TF(keyboard->result == ISC_R_CANCELED));
  90 }
  91