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 /*
  43  * Taken from the original scsi(8) program.
  44  * from: scsi.c,v 1.17 1998/01/12 07:57:57 charnier Exp $";
  45  */
  46 #include <sys/cdefs.h>
  47 __FBSDID("$FreeBSD$");
  48
  49 #include <sys/stdint.h>
  50 #include <sys/types.h>
  51
  52 #include <stdlib.h>
  53 #include <stdio.h>
  54 #include <string.h>
  55
  56 #include <camlib.h>
  57 #include "camcontrol.h"
  58
  59 int verbose;
  60
  61 /* iget: Integer argument callback
  62  */
  63 int
  64 iget(void *hook, char *name)
  65 {
  66         struct get_hook *h = (struct get_hook *)hook;
  67         int arg;
  68
  69         if (h->got >= h->argc)
  70         {
  71                 fprintf(stderr, "Expecting an integer argument.\n");
  72                 usage(0);
  73                 exit(1);
  74         }
  75         arg = strtol(h->argv[h->got], 0, 0);
  76         h->got++;
  77
  78         if (verbose && name && *name)
  79                 printf("%s: %d\n", name, arg);
  80
  81         return arg;
  82 }
  83
  84 /* cget: char * argument callback
  85  */
  86 char *
  87 cget(void *hook, char *name)
  88 {
  89         struct get_hook *h = (struct get_hook *)hook;
  90         char *arg;
  91
  92         if (h->got >= h->argc)
  93         {
  94                 fprintf(stderr, "Expecting a character pointer argument.\n");
  95                 usage(0);
  96                 exit(1);
  97         }
  98         arg = h->argv[h->got];
  99         h->got++;
 100
 101         if (verbose && name)
 102                 printf("cget: %s: %s", name, arg);
 103
 104         return arg;
 105 }
 106
 107 /* arg_put: "put argument" callback
 108  */
 109 void
 110 arg_put(void *hook __unused, int letter, void *arg, int count, char *name)
 111 {
 112         if (verbose && name && *name)
 113                 printf("%s:  ", name);
 114
 115         switch(letter)
 116         {
 117                 case 'i':
 118                 case 'b':
 119                 printf("%jd ", (intmax_t)(intptr_t)arg);
 120                 break;
 121
 122                 case 'c':
 123                 case 'z':
 124                 {
 125                         char *p;
 126
 127                         p = malloc(count + 1);
 128                         if (p == NULL) {
 129                                 fprintf(stderr, "can't malloc memory for p\n");
 130                                 exit(1);
 131                         }
 132
 133                         bzero(p, count +1);
 134                         strncpy(p, (char *)arg, count);
 135                         if (letter == 'z')
 136                         {
 137                                 int i;
 138                                 for (i = count - 1; i >= 0; i--)
 139                                         if (p[i] == ' ')
 140                                                 p[i] = 0;
 141                                         else
 142                                                 break;
 143                         }
 144                         printf("%s ", p);
 145
 146                         free(p);
 147                 }
 148
 149                 break;
 150
 151                 default:
 152                 printf("Unknown format letter: '%c'\n", letter);
 153         }
 154         if (verbose)
 155                 putchar('\n');
 156 }