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#ifndef LIBNFTNL_UTILS_H
#define LIBNFTNL_UTILS_H 1
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <libnftnl/common.h>
#include "config.h"
#ifdef HAVE_VISIBILITY_HIDDEN
# define __visible __attribute__((visibility("default")))
# define EXPORT_SYMBOL(x) typeof(x) (x) __visible;
#else
# define __visible
# define EXPORT_SYMBOL
#endif
#define __noreturn __attribute__((__noreturn__))
#define xfree(ptr) free((void *)ptr);
#define div_round_up(n, d) (((n) + (d) - 1) / (d))
void __noreturn __abi_breakage(const char *file, int line, const char *reason);
#define abi_breakage() \
__abi_breakage(__FILE__, __LINE__, strerror(errno));
void __nftnl_assert_fail(uint16_t attr, const char *filename, int line);
#define nftnl_assert(val, attr, expr) \
((!val || expr) \
? (void)0 \
: __nftnl_assert_fail(attr, __FILE__, __LINE__))
#define nftnl_assert_validate(data, _validate_array, _attr, _data_len) \
({ \
if (!data) \
__nftnl_assert_fail(attr, __FILE__, __LINE__); \
if (_validate_array[_attr]) \
nftnl_assert(data, attr, _validate_array[_attr] == _data_len); \
})
void __nftnl_assert_attr_exists(uint16_t attr, uint16_t attr_max,
const char *filename, int line);
#define nftnl_assert_attr_exists(_attr, _attr_max) \
({ \
if (_attr > _attr_max) \
__nftnl_assert_attr_exists(_attr, _attr_max, __FILE__, __LINE__); \
})
#define SNPRINTF_BUFFER_SIZE(ret, remain, offset) \
if (ret < 0) \
ret = 0; \
offset += ret; \
if (ret > remain) \
ret = remain; \
remain -= ret; \
#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
#define __must_be_array(a) \
BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0])))
#define array_size(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
const char *nftnl_family2str(uint32_t family);
int nftnl_str2family(const char *family);
enum nftnl_type {
NFTNL_TYPE_U8,
NFTNL_TYPE_U16,
NFTNL_TYPE_U32,
NFTNL_TYPE_U64,
NFTNL_TYPE_S8,
NFTNL_TYPE_S16,
NFTNL_TYPE_S32,
NFTNL_TYPE_S64,
};
int nftnl_strtoi(const char *string, int base, void *number, enum nftnl_type type);
int nftnl_get_value(enum nftnl_type type, void *val, void *out);
const char *nftnl_verdict2str(uint32_t verdict);
int nftnl_str2verdict(const char *verdict, int *verdict_num);
const char *nftnl_cmd2tag(enum nftnl_cmd_type cmd);
uint32_t nftnl_str2cmd(const char *cmd);
enum nftnl_cmd_type nftnl_flag2cmd(uint32_t flags);
int nftnl_fprintf(FILE *fpconst, const void *obj, uint32_t cmd, uint32_t type,
uint32_t flags,
int (*snprintf_cb)(char *buf, size_t bufsiz, const void *obj,
uint32_t cmd, uint32_t type,
uint32_t flags));
#endif
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