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/*
* (C) 2024 Red Hat GmbH
* Author: Phil Sutter <phil@nwl.cc>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <libmnl/libmnl.h>
#include <linux/netfilter/nf_tables.h>
#include "str_array.h"
#include "utils.h"
void nftnl_str_array_clear(struct nftnl_str_array *sa)
{
while (sa->len > 0)
free(sa->array[--sa->len]);
free(sa->array);
}
int nftnl_str_array_set(struct nftnl_str_array *sa, const char * const *array)
{
int len = 0;
while (array[len])
len++;
nftnl_str_array_clear(sa);
sa->array = calloc(len + 1, sizeof(char *));
if (!sa->array)
return -1;
while (sa->len < len) {
sa->array[sa->len] = strdup(array[sa->len]);
if (!sa->array[sa->len]) {
nftnl_str_array_clear(sa);
return -1;
}
sa->len++;
}
return 0;
}
int nftnl_parse_devs(struct nftnl_str_array *sa, const struct nlattr *nest)
{
struct nlattr *attr;
int len = 0;
mnl_attr_for_each_nested(attr, nest) {
if (mnl_attr_get_type(attr) != NFTA_DEVICE_NAME)
return -1;
len++;
}
nftnl_str_array_clear(sa);
sa->array = calloc(len + 1, sizeof(char *));
if (!sa->array)
return -1;
mnl_attr_for_each_nested(attr, nest) {
sa->array[sa->len] = strdup(mnl_attr_get_str(attr));
if (!sa->array[sa->len]) {
nftnl_str_array_clear(sa);
return -1;
}
sa->len++;
}
return 0;
}
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