1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 #pragma once
3 
4 #include <stdbool.h>
5 #include <stdint.h>
6 
7 #include "macro.h"
8 #include "stdio-util.h"
9 #include "string-util.h"
10 
11 char *sysctl_normalize(char *s);
12 int sysctl_read(const char *property, char **value);
13 int sysctl_write(const char *property, const char *value);
14 int sysctl_writef(const char *property, const char *format, ...) _printf_(2, 3);
15 
16 int sysctl_read_ip_property(int af, const char *ifname, const char *property, char **ret);
17 int sysctl_write_ip_property(int af, const char *ifname, const char *property, const char *value);
sysctl_write_ip_property_boolean(int af,const char * ifname,const char * property,bool value)18 static inline int sysctl_write_ip_property_boolean(int af, const char *ifname, const char *property, bool value) {
19         return sysctl_write_ip_property(af, ifname, property, one_zero(value));
20 }
21 
22 #define DEFINE_SYSCTL_WRITE_IP_PROPERTY(name, type, format)           \
23         static inline int sysctl_write_ip_property_##name(int af, const char *ifname, const char *property, type value) { \
24                 char buf[DECIMAL_STR_MAX(type)];                        \
25                 xsprintf(buf, format, value);                           \
26                 return sysctl_write_ip_property(af, ifname, property, buf); \
27         }
28 
29 DEFINE_SYSCTL_WRITE_IP_PROPERTY(int, int, "%i");
30 DEFINE_SYSCTL_WRITE_IP_PROPERTY(uint32, uint32_t, "%" PRIu32);
31