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23fbf7cf1d
This is useful when writing coredump pattern. But the logic itself is quite generic. Let's add the helper in our basic library. Preparation for later change.
35 lines
1.9 KiB
C
35 lines
1.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "forward.h"
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#include "stdio-util.h"
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char* sysctl_normalize(char *s);
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int sysctl_read(const char *property, char **ret);
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int sysctl_write_full(const char *property, const char *value, Hashmap **shadow);
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int sysctl_writef(const char *property, const char *format, ...) _printf_(2, 3);
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static inline int sysctl_write(const char *property, const char *value) {
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return sysctl_write_full(property, value, NULL);
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}
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int sysctl_write_verify(const char *property, const char *value);
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int sysctl_read_ip_property(int af, const char *ifname, const char *property, char **ret);
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int sysctl_read_ip_property_int(int af, const char *ifname, const char *property, int *ret);
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int sysctl_read_ip_property_uint32(int af, const char *ifname, const char *property, uint32_t *ret);
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int sysctl_write_ip_property(int af, const char *ifname, const char *property, const char *value, Hashmap **shadow);
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int sysctl_write_ip_property_boolean(int af, const char *ifname, const char *property, bool value, Hashmap **shadow);
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int sysctl_write_ip_neighbor_property(int af, const char *ifname, const char *property, const char *value, Hashmap **shadow);
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int sysctl_write_ip_neighbor_property_uint32(int af, const char *ifname, const char *property, uint32_t value, Hashmap **shadow);
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#define DEFINE_SYSCTL_WRITE_IP_PROPERTY(name, type, format) \
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static inline int sysctl_write_ip_property_##name(int af, const char *ifname, const char *property, type value, Hashmap **shadow) { \
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char buf[DECIMAL_STR_MAX(type)]; \
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xsprintf(buf, format, value); \
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return sysctl_write_ip_property(af, ifname, property, buf, shadow); \
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}
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DEFINE_SYSCTL_WRITE_IP_PROPERTY(int, int, "%i");
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DEFINE_SYSCTL_WRITE_IP_PROPERTY(uint32, uint32_t, "%" PRIu32);
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