/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once


#include "basic-forward.h"
#include "stdio-util.h"

char* sysctl_normalize(char *s);
int sysctl_read(const char *property, char **ret);
int sysctl_read_int(const char *property, int *ret);
int sysctl_read_unsigned(const char *property, unsigned *ret);
#define sysctl_read_uint32(property, ret) sysctl_read_unsigned(property, ret)
int sysctl_read_uint64(const char *property, uint64_t *ret);

#if LONG_MAX == INT_MAX
static inline int sysctl_read_lu(const char *property, unsigned long *ret) {
        assert_cc(sizeof(unsigned long) == sizeof(uint32_t));
        return sysctl_read_uint32(property, (uint32_t*) ret);
}
#else
static inline int sysctl_read_lu(const char *property, unsigned long *ret) {
        assert_cc(sizeof(unsigned long) == sizeof(uint64_t));
        return sysctl_read_uint64(property, (uint64_t*) ret);
}
#endif

int sysctl_write_full(const char *property, const char *value, Hashmap **shadow);
int sysctl_writef(const char *property, const char *format, ...) _printf_(2, 3);
static inline int sysctl_write(const char *property, const char *value) {
        return sysctl_write_full(property, value, NULL);
}

int sysctl_read_ip_property(int af, const char *ifname, const char *property, char **ret);
int sysctl_read_ip_property_int(int af, const char *ifname, const char *property, int *ret);
int sysctl_read_ip_property_uint32(int af, const char *ifname, const char *property, uint32_t *ret);
int sysctl_write_ip_property(int af, const char *ifname, const char *property, const char *value, Hashmap **shadow);
int sysctl_write_ip_property_boolean(int af, const char *ifname, const char *property, bool value, Hashmap **shadow);

int sysctl_write_ip_neighbor_property(int af, const char *ifname, const char *property, const char *value, Hashmap **shadow);
int sysctl_write_ip_neighbor_property_uint32(int af, const char *ifname, const char *property, uint32_t value, Hashmap **shadow);

#define DEFINE_SYSCTL_WRITE_IP_PROPERTY(name, type, format)           \
        static inline int sysctl_write_ip_property_##name(int af, const char *ifname, const char *property, type value, Hashmap **shadow) { \
                char buf[DECIMAL_STR_MAX(type)];                        \
                xsprintf(buf, format, value);                           \
                return sysctl_write_ip_property(af, ifname, property, buf, shadow); \
        }

DEFINE_SYSCTL_WRITE_IP_PROPERTY(int, int, "%i");
DEFINE_SYSCTL_WRITE_IP_PROPERTY(uint32, uint32_t, "%" PRIu32);