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/* libguestfs
* Copyright (C) 2014 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "c-ctype.h"
#include "guestfs.h"
#include "guestfs-internal.h"
/**
* Check whether a string supposed to contain a GUID actually contains
* it. It can recognize strings either as
* C<{21EC2020-3AEA-1069-A2DD-08002B30309D}> or
* C<21EC2020-3AEA-1069-A2DD-08002B30309D>.
*/
int
guestfs_int_validate_guid (const char *str)
{
size_t i, len = strlen (str);
switch (len) {
case 36:
break;
case 38:
if (str[0] == '{' && str[len -1] == '}') {
++str;
len -= 2;
break;
}
return 0;
default:
return 0;
}
for (i = 0; i < len; ++i) {
switch (i) {
case 8:
case 13:
case 18:
case 23:
if (str[i] != '-')
return 0;
break;
default:
if (!c_isalnum (str[i]))
return 0;
break;
}
}
return 1;
}
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