freebsd-dev/sbin/camcontrol/util.c
Pedro F. Giffuni 1de7b4b805 various: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00

187 lines
4.3 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Written By Julian ELischer
* Copyright julian Elischer 1993.
* Permission is granted to use or redistribute this file in any way as long
* as this notice remains. Julian Elischer does not guarantee that this file
* is totally correct for any given task and users of this file must
* accept responsibility for any damage that occurs from the application of this
* file.
*
* (julian@tfs.com julian@dialix.oz.au)
*
* User SCSI hooks added by Peter Dufault:
*
* Copyright (c) 1994 HD Associates
* (contact: dufault@hda.com)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of HD Associates
* may not be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Taken from the original scsi(8) program.
* from: scsi.c,v 1.17 1998/01/12 07:57:57 charnier Exp $";
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/stdint.h>
#include <sys/types.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <camlib.h>
#include "camcontrol.h"
int verbose;
/* iget: Integer argument callback
*/
int
iget(void *hook, char *name)
{
struct get_hook *h = (struct get_hook *)hook;
int arg;
if (h->got >= h->argc)
{
fprintf(stderr, "Expecting an integer argument.\n");
usage(0);
exit(1);
}
arg = strtol(h->argv[h->got], 0, 0);
h->got++;
if (verbose && name && *name)
printf("%s: %d\n", name, arg);
return arg;
}
/* cget: char * argument callback
*/
char *
cget(void *hook, char *name)
{
struct get_hook *h = (struct get_hook *)hook;
char *arg;
if (h->got >= h->argc)
{
fprintf(stderr, "Expecting a character pointer argument.\n");
usage(0);
exit(1);
}
arg = h->argv[h->got];
h->got++;
if (verbose && name)
printf("cget: %s: %s", name, arg);
return arg;
}
/* arg_put: "put argument" callback
*/
void
arg_put(void *hook __unused, int letter, void *arg, int count, char *name)
{
if (verbose && name && *name)
printf("%s: ", name);
switch(letter)
{
case 'i':
case 'b':
printf("%jd ", (intmax_t)(intptr_t)arg);
break;
case 'c':
case 'z':
{
char *p;
p = malloc(count + 1);
if (p == NULL) {
fprintf(stderr, "can't malloc memory for p\n");
exit(1);
}
bzero(p, count +1);
strncpy(p, (char *)arg, count);
if (letter == 'z')
{
int i;
for (i = count - 1; i >= 0; i--)
if (p[i] == ' ')
p[i] = 0;
else
break;
}
printf("%s ", p);
free(p);
}
break;
default:
printf("Unknown format letter: '%c'\n", letter);
}
if (verbose)
putchar('\n');
}
/*
* Get confirmation from user
* Return values:
* 1: confirmed
* 0: unconfirmed
*/
int
get_confirmation(void)
{
char str[1024];
int response = -1;
do {
fprintf(stdout, "Are you SURE you want to do this? (yes/no) ");
if (fgets(str, sizeof(str), stdin) != NULL) {
if (strncasecmp(str, "yes", 3) == 0)
response = 1;
else if (strncasecmp(str, "no", 2) == 0)
response = 0;
else
fprintf(stdout,
"Please answer \"yes\" or \"no\"\n");
} else
response = 0;
} while (response == -1);
return (response);
}