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/*
* Copyright © 2017 Red Hat, Inc
*
* This program 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 2.1 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, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Christian J. Kellner <christian@kellner.me>
*/
#include "config.h"
#include "bolt-str.h"
#include <string.h>
typedef void (* zero_fn_t) (void *s,
size_t n);
void
bolt_erase_n (void *data, gsize n)
{
#if !HAVE_FN_EXPLICIT_BZERO
#warning no explicit bzero, using fallback
static volatile zero_fn_t explicit_bzero = bzero;
#endif
explicit_bzero (data, n);
}
void
bolt_str_erase (char *str)
{
if (str == NULL)
return;
bolt_erase_n (str, strlen (str));
}
void
bolt_str_erase_clear (char **str)
{
g_return_if_fail (str != NULL);
if (*str == NULL)
return;
bolt_str_erase (*str);
g_free (*str);
*str = NULL;
}
GStrv
bolt_strv_from_ptr_array (GPtrArray **array)
{
GPtrArray *a;
if (array == NULL || *array == NULL)
return NULL;
a = *array;
if (a->len == 0 || a->pdata[a->len - 1] != NULL)
g_ptr_array_add (a, NULL);
*array = NULL;
return (GStrv) g_ptr_array_free (a, FALSE);
}
char *
bolt_strdup_validate (const char *string)
{
g_autofree char *str = NULL;
gboolean ok;
gsize l;
if (string == NULL)
return NULL;
str = g_strdup (string);
str = g_strstrip (str);
l = strlen (str);
if (l == 0)
return NULL;
ok = g_utf8_validate (str, l, NULL);
if (!ok)
return NULL;
return g_steal_pointer (&str);
}
char *
bolt_strstrip (char *string)
{
char *str;
if (string == NULL)
return NULL;
str = g_strstrip (string);
if (strlen (str) == 0)
g_clear_pointer (&str, g_free);
return str;
}
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