xref: /dragonfly/sbin/camcontrol/util.c (revision e0ecab34)
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("%jd ", (intmax_t)(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 }
156