sbin/camcontrol/util.c

   1 /*
   2  * Written By Julian ELischer
   3  * Copyright julian Elischer 1993.
   4  * Permission is granted to use or redistribute this file in any way as long
   5  * as this notice remains. Julian Elischer does not guarantee that this file
   6  * is totally correct for any given task and users of this file must
   7  * accept responsibility for any damage that occurs from the application of this
   8  * file.
   9  *
  10  * (julian@tfs.com julian@dialix.oz.au)
  11  *
  12  * User SCSI hooks added by Peter Dufault:
  13  *
  14  * Copyright (c) 1994 HD Associates
  15  * (contact: dufault@hda.com)
  16  * All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms, with or without
  19  * modification, are permitted provided that the following conditions
  20  * are met:
  21  * 1. Redistributions of source code must retain the above copyright
  22  *    notice, this list of conditions and the following disclaimer.
  23  * 2. Redistributions in binary form must reproduce the above copyright
  24  *    notice, this list of conditions and the following disclaimer in the
  25  *    documentation and/or other materials provided with the distribution.
  26  * 3. The name of HD Associates
  27  *    may not be used to endorse or promote products derived from this software
  28  *    without specific prior written permission.
  29  *
  30  * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES ``AS IS'' AND
  31  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  32  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  33  * ARE DISCLAIMED.  IN NO EVENT SHALL HD ASSOCIATES BE LIABLE
  34  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  38  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  39  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  40  * SUCH DAMAGE.
  41  *
  42  * $FreeBSD: src/sbin/camcontrol/util.c,v 1.6.2.2 2001/03/04 07:20:33 kris Exp $
  43  * $DragonFly: src/sbin/camcontrol/util.c,v 1.3 2005/01/11 23:58:55 cpressey Exp $
  44  */
  45 /*
  46  * Taken from the original scsi(8) program.
  47  * from: scsi.c,v 1.17 1998/01/12 07:57:57 charnier Exp $";
  48  */
  49
  50 #include <stdlib.h>
  51 #include <stdio.h>
  52 #include <string.h>
  53 #include <sys/types.h>
  54
  55 #include <camlib.h>
  56 #include "camcontrol.h"
  57
  58 int verbose;
  59
  60 /* iget: Integer argument callback
  61  */
  62 int
  63 iget(void *hook, char *name)
  64 {
  65         struct get_hook *h = (struct get_hook *)hook;
  66         int arg;
  67
  68         if (h->got >= h->argc)
  69         {
  70                 fprintf(stderr, "Expecting an integer argument.\n");
  71                 usage(0);
  72                 exit(1);
  73         }
  74         arg = strtol(h->argv[h->got], 0, 0);
  75         h->got++;
  76
  77         if (verbose && name && *name)
  78                 printf("%s: %d\n", name, arg);
  79
  80         return arg;
  81 }
  82
  83 /* cget: char * argument callback
  84  */
  85 char *
  86 cget(void *hook, char *name)
  87 {
  88         struct get_hook *h = (struct get_hook *)hook;
  89         char *arg;
  90
  91         if (h->got >= h->argc)
  92         {
  93                 fprintf(stderr, "Expecting a character pointer argument.\n");
  94                 usage(0);
  95                 exit(1);
  96         }
  97         arg = h->argv[h->got];
  98         h->got++;
  99
 100         if (verbose && name)
 101                 printf("cget: %s: %s", name, arg);
 102
 103         return arg;
 104 }
 105
 106 /* arg_put: "put argument" callback
 107  */
 108 void
 109 arg_put(void *hook __unused, int letter, void *arg, int count, char *name)
 110 {
 111         if (verbose && name && *name)
 112                 printf("%s:  ", name);
 113
 114         switch(letter)
 115         {
 116                 case 'i':
 117                 case 'b':
 118                 printf("%d ", (intptr_t)arg);
 119                 break;
 120
 121                 case 'c':
 122                 case 'z':
 123                 {
 124                         char *p;
 125
 126                         p = malloc(count + 1);
 127                         if (p == NULL) {
 128                                 fprintf(stderr, "can't malloc memory for p\n");
 129                                 exit(1);
 130                         }
 131
 132                         bzero(p, count +1);
 133                         strncpy(p, (char *)arg, count);
 134                         if (letter == 'z')
 135                         {
 136                                 int i;
 137                                 for (i = count - 1; i >= 0; i--)
 138                                         if (p[i] == ' ')
 139                                                 p[i] = 0;
 140                                         else
 141                                                 break;
 142                         }
 143                         printf("%s ", p);
 144
 145                         free(p);
 146                 }
 147
 148                 break;
 149
 150                 default:
 151                 printf("Unknown format letter: '%c'\n", letter);
 152         }
 153         if (verbose)
 154                 putchar('\n');
 155 }