mirror of
https://github.com/osmarks/ngircd.git
synced 2025-05-30 21:14:07 +00:00
4ed2cb1a02
this also obsoletes ListenIPv4 and ListenIPv6 options. If Listen is unset, it is treated as Listen="::,0.0.0.0". Note: ListenIPv4 and ListenIPv6 options are still recognized, but ngircd will print a warning if they are used in the config file. Also, some plattforms require that ai_socktype is set in the getaddrinfo() hints structure.
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
/*
|
|
* Functions for AF_ agnostic ipv4/ipv6 handling.
|
|
*
|
|
* (c) 2008 Florian Westphal <fw@strlen.de>, public domain.
|
|
*/
|
|
|
|
#ifndef NG_IPADDR_HDR
|
|
#define NG_IPADDR_HDR
|
|
#include "portab.h"
|
|
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
|
|
#ifdef HAVE_ARPA_INET_H
|
|
# include <arpa/inet.h>
|
|
#else
|
|
# define PF_INET AF_INET
|
|
#endif
|
|
|
|
|
|
#ifdef WANT_IPV6
|
|
#define NG_INET_ADDRSTRLEN INET6_ADDRSTRLEN
|
|
#else
|
|
#define NG_INET_ADDRSTRLEN 16
|
|
#endif
|
|
|
|
|
|
#ifdef WANT_IPV6
|
|
typedef union {
|
|
struct sockaddr sa;
|
|
struct sockaddr_in sin4;
|
|
struct sockaddr_in6 sin6;
|
|
} ng_ipaddr_t;
|
|
#else
|
|
/* assume compiler can't deal with typedef struct {... */
|
|
struct NG_IP_ADDR_DONTUSE {
|
|
struct sockaddr_in sin4;
|
|
};
|
|
typedef struct NG_IP_ADDR_DONTUSE ng_ipaddr_t;
|
|
#endif
|
|
|
|
|
|
static inline int
|
|
ng_ipaddr_af(const ng_ipaddr_t *a)
|
|
{
|
|
#ifdef WANT_IPV6
|
|
return a->sa.sa_family;
|
|
#else
|
|
assert(a->sin4.sin_family == 0 || a->sin4.sin_family == AF_INET);
|
|
return a->sin4.sin_family;
|
|
#endif
|
|
}
|
|
|
|
|
|
static inline socklen_t
|
|
ng_ipaddr_salen(const ng_ipaddr_t *a)
|
|
{
|
|
#ifdef WANT_IPV6
|
|
assert(a->sa.sa_family == AF_INET || a->sa.sa_family == AF_INET6);
|
|
if (a->sa.sa_family == AF_INET6)
|
|
return sizeof(a->sin6);
|
|
#endif
|
|
assert(a->sin4.sin_family == AF_INET);
|
|
return sizeof(a->sin4);
|
|
}
|
|
|
|
|
|
static inline UINT16
|
|
ng_ipaddr_getport(const ng_ipaddr_t *a)
|
|
{
|
|
#ifdef WANT_IPV6
|
|
int af = a->sa.sa_family;
|
|
|
|
assert(af == AF_INET || af == AF_INET6);
|
|
|
|
if (af == AF_INET6)
|
|
return ntohs(a->sin6.sin6_port);
|
|
#endif /* WANT_IPV6 */
|
|
assert(a->sin4.sin_family == AF_INET);
|
|
return ntohs(a->sin4.sin_port);
|
|
}
|
|
|
|
/*
|
|
* init a ng_ipaddr_t object.
|
|
* @param addr: pointer to ng_ipaddr_t to initialize.
|
|
* @param ip_str: ip address in dotted-decimal (ipv4) or hexadecimal (ipv6) notation
|
|
* @param port: transport layer port number to use.
|
|
*/
|
|
GLOBAL bool ng_ipaddr_init PARAMS((ng_ipaddr_t *addr, const char *ip_str, UINT16 port));
|
|
|
|
/* set sin4/sin6_port, depending on a->sa_family */
|
|
GLOBAL void ng_ipaddr_setport PARAMS((ng_ipaddr_t *a, UINT16 port));
|
|
|
|
/* return true if a and b have the same IP address. If a and b have different AF, return false. */
|
|
GLOBAL bool ng_ipaddr_ipequal PARAMS((const ng_ipaddr_t *a, const ng_ipaddr_t *b));
|
|
|
|
|
|
#ifdef WANT_IPV6
|
|
/* convert struct sockaddr to string, returns pointer to static buffer */
|
|
GLOBAL const char *ng_ipaddr_tostr PARAMS((const ng_ipaddr_t *addr));
|
|
|
|
/* convert struct sockaddr to string. dest must be NG_INET_ADDRSTRLEN bytes long */
|
|
GLOBAL bool ng_ipaddr_tostr_r PARAMS((const ng_ipaddr_t *addr, char *dest));
|
|
#else
|
|
static inline const char *
|
|
ng_ipaddr_tostr(const ng_ipaddr_t *addr) { return inet_ntoa(addr->sin4.sin_addr); }
|
|
|
|
static inline bool
|
|
ng_ipaddr_tostr_r(const ng_ipaddr_t *addr, char *d)
|
|
{
|
|
strlcpy(d, inet_ntoa(addr->sin4.sin_addr), NG_INET_ADDRSTRLEN);
|
|
return true;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
/* -eof- */
|
|
|