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: stable/10/sbin/camcontrol/util.c 227963 2011-11-25 07:11:02Z delphij $");
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
iget(void * hook,char * name)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 *
cget(void * hook,char * name)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
arg_put(void * hook __unused,int letter,void * arg,int count,char * name)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 }
157
158 /*
159 * Get confirmation from user
160 * Return values:
161 * 1: confirmed
162 * 0: unconfirmed
163 */
164 int
get_confirmation(void)165 get_confirmation(void)
166 {
167 char str[1024];
168 int response = -1;
169
170 do {
171 fprintf(stdout, "Are you SURE you want to do this? (yes/no) ");
172 if (fgets(str, sizeof(str), stdin) != NULL) {
173 if (strncasecmp(str, "yes", 3) == 0)
174 response = 1;
175 else if (strncasecmp(str, "no", 2) == 0)
176 response = 0;
177 else
178 fprintf(stdout,
179 "Please answer \"yes\" or \"no\"\n");
180 } else
181 response = 0;
182 } while (response == -1);
183 return (response);
184 }
185