ip-utils.h

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#ifndef JANUS_IP_UTILS_H
#define JANUS_IP_UTILS_H

#include <ifaddrs.h>
#include <netinet/in.h>


typedef enum janus_network_query_options {
        janus_network_query_options_none = 0,
        janus_network_query_options_name = 1,
        janus_network_query_options_ipv4 = 2,
        janus_network_query_options_ipv6 = 4,
        janus_network_query_options_any_ip = 6,
        janus_network_query_options_any = 7
} janus_network_query_options;

typedef struct janus_network_query_config {
        const char *device_name;
        janus_network_query_options mode;
        struct in_addr ipv4;
        struct in6_addr ipv6;
} janus_network_query_config;

typedef struct janus_network_address {
        int family;
        union {
                struct in_addr ipv4;
                struct in6_addr ipv6;
        };
} janus_network_address;

typedef struct janus_network_address_string_buffer {
        int family;
        union {
                char ipv4[INET_ADDRSTRLEN];
                char ipv6[INET6_ADDRSTRLEN];
        };
} janus_network_address_string_buffer;

int janus_network_prepare_device_query(const char *user_value, const janus_network_query_options query_mode, janus_network_query_config *query);

int janus_network_prepare_device_query_default(const char *user_value, janus_network_query_config *query);

const struct ifaddrs *janus_network_query_devices(const struct ifaddrs *ifas, const janus_network_query_config *query);

int janus_network_get_devices_ipv4(const struct ifaddrs *ifa, const janus_network_query_config *query, struct in_addr *result);

int janus_network_get_devices_ipv6(const struct ifaddrs *ifa, const janus_network_query_config *query, struct in6_addr *result);

int janus_network_get_device_address(const struct ifaddrs *ifa, janus_network_address *result);

void janus_network_address_nullify(janus_network_address *a);

int janus_network_address_is_null(const janus_network_address *a);

int janus_network_address_from_sockaddr(struct sockaddr *s, janus_network_address *a);

int janus_network_address_to_string_buffer(const janus_network_address *a, janus_network_address_string_buffer *buf);

void janus_network_address_string_buffer_nullify(janus_network_address_string_buffer *b);

int janus_network_address_string_buffer_is_null(const janus_network_address_string_buffer *b);

const char *janus_network_address_string_from_buffer(const janus_network_address_string_buffer *b);

int janus_network_string_is_valid_address(janus_network_query_options addr_type, const char *user_value);

int janus_network_string_to_address(janus_network_query_options addr_type, const char *user_value, janus_network_address *result);

int janus_network_lookup_interface(const struct ifaddrs *ifas, const char *iface, janus_network_address *result);

int janus_network_detect_local_ip(janus_network_query_options addr_type, janus_network_address *result);

char *janus_network_detect_local_ip_as_string(janus_network_query_options addr_type);

#endif