util.c revision 111195 
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 $";
45 */
46#ifndef lint
47static const char rcsid[] =
48  "$FreeBSD: head/sbin/camcontrol/util.c 111195 2003-02-20 21:07:59Z johan $";
49#endif /* not lint */
50
51#include <sys/stdint.h>
52#include <sys/types.h>
53
54#include <stdlib.h>
55#include <stdio.h>
56#include <string.h>
57
58#include <camlib.h>
59#include "camcontrol.h"
60
61int verbose;
62
63/* iget: Integer argument callback
64 */
65int
66iget(void *hook, char *name)
67{
68	struct get_hook *h = (struct get_hook *)hook;
69	int arg;
70
71	if (h->got >= h->argc)
72	{
73		fprintf(stderr, "Expecting an integer argument.\n");
74		usage(0);
75		exit(1);
76	}
77	arg = strtol(h->argv[h->got], 0, 0);
78	h->got++;
79
80	if (verbose && name && *name)
81		printf("%s: %d\n", name, arg);
82
83	return arg;
84}
85
86/* cget: char * argument callback
87 */
88char *
89cget(void *hook, char *name)
90{
91	struct get_hook *h = (struct get_hook *)hook;
92	char *arg;
93
94	if (h->got >= h->argc)
95	{
96		fprintf(stderr, "Expecting a character pointer argument.\n");
97		usage(0);
98		exit(1);
99	}
100	arg = h->argv[h->got];
101	h->got++;
102
103	if (verbose && name)
104		printf("cget: %s: %s", name, arg);
105
106	return arg;
107}
108
109/* arg_put: "put argument" callback
110 */
111void
112arg_put(void *hook, int letter, void *arg, int count, char *name)
113{
114	if (verbose && name && *name)
115		printf("%s:  ", name);
116
117	switch(letter)
118	{
119		case 'i':
120		case 'b':
121		printf("%jd ", (intmax_t)(intptr_t)arg);
122		break;
123
124		case 'c':
125		case 'z':
126		{
127			char *p;
128
129			p = malloc(count + 1);
130			if (p == NULL) {
131				fprintf(stderr, "can't malloc memory for p\n");
132				exit(1);
133			}
134
135			bzero(p, count +1);
136			strncpy(p, (char *)arg, count);
137			if (letter == 'z')
138			{
139				int i;
140				for (i = count - 1; i >= 0; i--)
141					if (p[i] == ' ')
142						p[i] = 0;
143					else
144						break;
145			}
146			printf("%s ", p);
147
148			free(p);
149		}
150
151		break;
152
153		default:
154		printf("Unknown format letter: '%c'\n", letter);
155	}
156	if (verbose)
157		putchar('\n');
158}
159