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/*
* Copyright (C) 2008-2012, Parallels, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <signal.h>
#include "ploop.h"
int parse_size(const char *opt, off_t *sz, const char *name)
{
__u64 val;
char * endptr;
val = strtoul(opt, &endptr, 0);
if (opt == endptr)
goto err;
if (strlen(endptr) > 1)
goto err;
switch (*endptr) {
case 'T': case 't':
if (val >= ~0ULL/(1024ULL*1024*1024*1024/SECTOR_SIZE))
goto large;
val *= 1024ULL*1024*1024*1024/SECTOR_SIZE;
*sz = val;
break;
case 'G': case 'g':
if (val >= ~0ULL/(1024*1024*1024/SECTOR_SIZE))
goto large;
val *= 1024*1024*1024/SECTOR_SIZE;
*sz = val;
break;
case 'M': case 'm':
if (val >= ~0ULL/(1024*1024/SECTOR_SIZE))
goto large;
val *= 1024*1024/SECTOR_SIZE;
*sz = val;
break;
case 'K': case 'k':
if (val >= ~0ULL/(1024/SECTOR_SIZE))
goto large;
val *= 1024/SECTOR_SIZE;
*sz = val;
break;
case 0:
*sz = (off_t)val;
break;
default:
goto err;
}
if (val >= (0xffffffffULL << PLOOP1_SECTOR_LOG))
goto large;
return 0;
err:
fprintf(stderr, "ERROR: Invalid argument for option %s: %s\n", name, opt);
return -1;
large:
fprintf(stderr, "ERROR: Too large value for option %s: %s\n", name, opt);
return -1;
}
int parse_format_opt(const char *opt)
{
if (strcmp(opt, "raw") == 0)
return PLOOP_RAW_MODE;
else if ((strcmp(opt, "ploop1") == 0) ||
(strcmp(opt, "expanded") == 0))
return PLOOP_EXPANDED_MODE;
else if (strcmp(opt, "preallocated") == 0)
return PLOOP_EXPANDED_PREALLOCATED_MODE;
fprintf(stderr, "Bad -f argument: %s\n", opt);
return -1;
}
char *parse_uuid(const char *opt)
{
char buf[] = "{fbcdf284-5345-416b-a589-7b5fcaa87673}";
const char *id = opt;
if (!id)
goto err;
if (id[0] != '{' && strlen(id) == 36) {
/* as a courtesy, add missing brackets */
memcpy(buf+1, id, 36);
id = buf;
}
if (!is_valid_guid(id))
goto err;
return strdup(id);
err:
fprintf(stderr, "Incorrect uuid specified: %s\n", opt);
return NULL;
}
int is_xml_fname(const char *fname)
{
const char *p;
if (fname == NULL)
return 0;
p = strrchr(fname, '.');
return (p != NULL && !strcmp(p, ".xml"));
}
static void cancel_callback(int sig)
{
ploop_cancel_operation();
}
void init_signals(void)
{
struct sigaction act = {};
sigemptyset(&act.sa_mask);
act.sa_handler = cancel_callback;
sigaction(SIGTERM, &act, NULL);
sigaction(SIGINT, &act, NULL);
sigaction(SIGHUP, &act, NULL);
}
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