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Viewing: /usr/include/maxminddb.h
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MAXMINDDB_H
#define MAXMINDDB_H
/* Request POSIX.1-2008. However, we want to remain compatible with
* POSIX.1-2001 (since we have been historically and see no reason to drop
* compatibility). By requesting POSIX.1-2008, we can conditionally use
* features provided by that standard if the implementation provides it. We can
* check for what the implementation provides by checking the _POSIX_VERSION
* macro after including unistd.h. If a feature is in POSIX.1-2008 but not
* POSIX.1-2001, check that macro before using the feature (or check for the
* feature directly if possible). */
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#include "maxminddb_config.h"
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/types.h>
#ifdef _WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
/* libmaxminddb package version from configure */
#define PACKAGE_VERSION "1.5.2"
typedef ADDRESS_FAMILY sa_family_t;
#if defined(_MSC_VER)
/* MSVC doesn't define signed size_t, copy it from configure */
#define ssize_t SSIZE_T
/* MSVC doesn't support restricted pointers */
#define restrict
#endif
#else
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#endif
#define MMDB_DATA_TYPE_EXTENDED (0)
#define MMDB_DATA_TYPE_POINTER (1)
#define MMDB_DATA_TYPE_UTF8_STRING (2)
#define MMDB_DATA_TYPE_DOUBLE (3)
#define MMDB_DATA_TYPE_BYTES (4)
#define MMDB_DATA_TYPE_UINT16 (5)
#define MMDB_DATA_TYPE_UINT32 (6)
#define MMDB_DATA_TYPE_MAP (7)
#define MMDB_DATA_TYPE_INT32 (8)
#define MMDB_DATA_TYPE_UINT64 (9)
#define MMDB_DATA_TYPE_UINT128 (10)
#define MMDB_DATA_TYPE_ARRAY (11)
#define MMDB_DATA_TYPE_CONTAINER (12)
#define MMDB_DATA_TYPE_END_MARKER (13)
#define MMDB_DATA_TYPE_BOOLEAN (14)
#define MMDB_DATA_TYPE_FLOAT (15)
#define MMDB_RECORD_TYPE_SEARCH_NODE (0)
#define MMDB_RECORD_TYPE_EMPTY (1)
#define MMDB_RECORD_TYPE_DATA (2)
#define MMDB_RECORD_TYPE_INVALID (3)
/* flags for open */
#define MMDB_MODE_MMAP (1)
#define MMDB_MODE_MASK (7)
/* error codes */
#define MMDB_SUCCESS (0)
#define MMDB_FILE_OPEN_ERROR (1)
#define MMDB_CORRUPT_SEARCH_TREE_ERROR (2)
#define MMDB_INVALID_METADATA_ERROR (3)
#define MMDB_IO_ERROR (4)
#define MMDB_OUT_OF_MEMORY_ERROR (5)
#define MMDB_UNKNOWN_DATABASE_FORMAT_ERROR (6)
#define MMDB_INVALID_DATA_ERROR (7)
#define MMDB_INVALID_LOOKUP_PATH_ERROR (8)
#define MMDB_LOOKUP_PATH_DOES_NOT_MATCH_DATA_ERROR (9)
#define MMDB_INVALID_NODE_NUMBER_ERROR (10)
#define MMDB_IPV6_LOOKUP_IN_IPV4_DATABASE_ERROR (11)
#if !(MMDB_UINT128_IS_BYTE_ARRAY)
#if MMDB_UINT128_USING_MODE
typedef unsigned int mmdb_uint128_t __attribute__((__mode__(TI)));
#else
typedef unsigned __int128 mmdb_uint128_t;
#endif
#endif
/* This is a pointer into the data section for a given IP address lookup */
typedef struct MMDB_entry_s {
const struct MMDB_s *mmdb;
uint32_t offset;
} MMDB_entry_s;
typedef struct MMDB_lookup_result_s {
bool found_entry;
MMDB_entry_s entry;
uint16_t netmask;
} MMDB_lookup_result_s;
typedef struct MMDB_entry_data_s {
bool has_data;
union {
uint32_t pointer;
const char *utf8_string;
double double_value;
const uint8_t *bytes;
uint16_t uint16;
uint32_t uint32;
int32_t int32;
uint64_t uint64;
#if MMDB_UINT128_IS_BYTE_ARRAY
uint8_t uint128[16];
#else
mmdb_uint128_t uint128;
#endif
bool boolean;
float float_value;
};
/* This is a 0 if a given entry cannot be found. This can only happen
* when a call to MMDB_(v)get_value() asks for hash keys or array
* indices that don't exist. */
uint32_t offset;
/* This is the next entry in the data section, but it's really only
* relevant for entries that part of a larger map or array
* struct. There's no good reason for an end user to look at this
* directly. */
uint32_t offset_to_next;
/* This is only valid for strings, utf8_strings or binary data */
uint32_t data_size;
/* This is an MMDB_DATA_TYPE_* constant */
uint32_t type;
} MMDB_entry_data_s;
/* This is the return type when someone asks for all the entry data in a map or
* array */
typedef struct MMDB_entry_data_list_s {
MMDB_entry_data_s entry_data;
struct MMDB_entry_data_list_s *next;
void *pool;
} MMDB_entry_data_list_s;
typedef struct MMDB_description_s {
const char *language;
const char *description;
} MMDB_description_s;
/* WARNING: do not add new fields to this struct without bumping the SONAME.
* The struct is allocated by the users of this library and increasing the
* size will cause existing users to allocate too little space when the shared
* library is upgraded */
typedef struct MMDB_metadata_s {
uint32_t node_count;
uint16_t record_size;
uint16_t ip_version;
const char *database_type;
struct {
size_t count;
const char **names;
} languages;
uint16_t binary_format_major_version;
uint16_t binary_format_minor_version;
uint64_t build_epoch;
struct {
size_t count;
MMDB_description_s **descriptions;
} description;
/* See above warning before adding fields */
} MMDB_metadata_s;
/* WARNING: do not add new fields to this struct without bumping the SONAME.
* The struct is allocated by the users of this library and increasing the
* size will cause existing users to allocate too little space when the shared
* library is upgraded */
typedef struct MMDB_ipv4_start_node_s {
uint16_t netmask;
uint32_t node_value;
/* See above warning before adding fields */
} MMDB_ipv4_start_node_s;
/* WARNING: do not add new fields to this struct without bumping the SONAME.
* The struct is allocated by the users of this library and increasing the
* size will cause existing users to allocate too little space when the shared
* library is upgraded */
typedef struct MMDB_s {
uint32_t flags;
const char *filename;
ssize_t file_size;
const uint8_t *file_content;
const uint8_t *data_section;
uint32_t data_section_size;
const uint8_t *metadata_section;
uint32_t metadata_section_size;
uint16_t full_record_byte_size;
uint16_t depth;
MMDB_ipv4_start_node_s ipv4_start_node;
MMDB_metadata_s metadata;
/* See above warning before adding fields */
} MMDB_s;
typedef struct MMDB_search_node_s {
uint64_t left_record;
uint64_t right_record;
uint8_t left_record_type;
uint8_t right_record_type;
MMDB_entry_s left_record_entry;
MMDB_entry_s right_record_entry;
} MMDB_search_node_s;
extern int
MMDB_open(const char *const filename, uint32_t flags, MMDB_s *const mmdb);
extern MMDB_lookup_result_s MMDB_lookup_string(const MMDB_s *const mmdb,
const char *const ipstr,
int *const gai_error,
int *const mmdb_error);
extern MMDB_lookup_result_s
MMDB_lookup_sockaddr(const MMDB_s *const mmdb,
const struct sockaddr *const sockaddr,
int *const mmdb_error);
extern int MMDB_read_node(const MMDB_s *const mmdb,
uint32_t node_number,
MMDB_search_node_s *const node);
extern int MMDB_get_value(MMDB_entry_s *const start,
MMDB_entry_data_s *const entry_data,
...);
extern int MMDB_vget_value(MMDB_entry_s *const start,
MMDB_entry_data_s *const entry_data,
va_list va_path);
extern int MMDB_aget_value(MMDB_entry_s *const start,
MMDB_entry_data_s *const entry_data,
const char *const *const path);
extern int MMDB_get_metadata_as_entry_data_list(
const MMDB_s *const mmdb, MMDB_entry_data_list_s **const entry_data_list);
extern int
MMDB_get_entry_data_list(MMDB_entry_s *start,
MMDB_entry_data_list_s **const entry_data_list);
extern void
MMDB_free_entry_data_list(MMDB_entry_data_list_s *const entry_data_list);
extern void MMDB_close(MMDB_s *const mmdb);
extern const char *MMDB_lib_version(void);
extern int
MMDB_dump_entry_data_list(FILE *const stream,
MMDB_entry_data_list_s *const entry_data_list,
int indent);
extern const char *MMDB_strerror(int error_code);
#endif /* MAXMINDDB_H */
#ifdef __cplusplus
}
#endif