* getaddrinfo.c: getaddrinfo/getnameinfo replacement functions
*****************************************************************************
* Copyright (C) 2005 the VideoLAN team
- * Copyright (C) 2002-2004 Rémi Denis-Courmont
+ * Copyright (C) 2002-2007 Rémi Denis-Courmont
* $Id$
*
* Author: Rémi Denis-Courmont <rem # videolan.org>
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_charset.h>
#include <stddef.h> /* size_t */
-#include <string.h> /* strncpy(), strlen(), memcpy(), memset(), strchr() */
+#include <string.h> /* strlen(), memcpy(), memset(), strchr() */
#include <stdlib.h> /* malloc(), free(), strtoul() */
#include <errno.h>
+#include <assert.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-#include "network.h"
+#include <sys/types.h>
+#include <vlc_network.h>
-#ifndef NO_ADDRESS
-# define NO_ADDRESS NO_DATA
-#endif
-#ifndef INADDR_NONE
-# define INADDR_NONE 0xFFFFFFFF
-#endif
#ifndef AF_UNSPEC
# define AF_UNSPEC 0
#endif
-#define _NI_MASK (NI_NUMERICHOST|NI_NUMERICSERV|NI_NOFQDN|NI_NAMEREQD|\
- NI_DGRAM)
-#define _AI_MASK (AI_PASSIVE|AI_CANONNAME|AI_NUMERICHOST)
-
-
-#ifndef HAVE_GAI_STRERROR
-static struct
-{
- int code;
- const char *msg;
-} const __gai_errlist[] =
-{
- { 0, "Error 0" },
- { EAI_BADFLAGS, "Invalid flag used" },
- { EAI_NONAME, "Host or service not found" },
- { EAI_AGAIN, "Temporary name service failure" },
- { EAI_FAIL, "Non-recoverable name service failure" },
- { EAI_NODATA, "No data for host name" },
- { EAI_FAMILY, "Unsupported address family" },
- { EAI_SOCKTYPE, "Unsupported socket type" },
- { EAI_SERVICE, "Incompatible service for socket type" },
- { EAI_ADDRFAMILY, "Unavailable address family for host name" },
- { EAI_MEMORY, "Memory allocation failure" },
- { EAI_SYSTEM, "System error" },
- { 0, NULL }
-};
-
-static const char *__gai_unknownerr = "Unrecognized error number";
-
-/****************************************************************************
- * Converts an EAI_* error code into human readable english text.
- ****************************************************************************/
-const char *vlc_gai_strerror( int errnum )
-{
- int i;
-
- for (i = 0; __gai_errlist[i].msg != NULL; i++)
- if (errnum == __gai_errlist[i].code)
- return __gai_errlist[i].msg;
-
- return __gai_unknownerr;
-}
-# undef _EAI_POSITIVE_MAX
-#else /* ifndef HAVE_GAI_STRERROR */
-const char *vlc_gai_strerror( int errnum )
-{
- return gai_strerror( errnum );
-}
-#endif
-
-#if !(defined (HAVE_GETNAMEINFO) && defined (HAVE_GETADDRINFO))
-/*
- * Converts the current herrno error value into an EAI_* error code.
- * That error code is normally returned by getnameinfo() or getaddrinfo().
- */
-static int
-gai_error_from_herrno( void )
-{
- switch(h_errno)
- {
- case HOST_NOT_FOUND:
- return EAI_NONAME;
-
- case NO_ADDRESS:
-# if (NO_ADDRESS != NO_DATA)
- case NO_DATA:
-# endif
- return EAI_NODATA;
-
- case NO_RECOVERY:
- return EAI_FAIL;
-
- case TRY_AGAIN:
- return EAI_AGAIN;
- }
- return EAI_SYSTEM;
-}
-#endif /* if !(HAVE_GETNAMEINFO && HAVE_GETADDRINFO) */
-
-#ifndef HAVE_GETNAMEINFO
-/*
- * getnameinfo() non-thread-safe IPv4-only implementation,
- * Address-family-independant address to hostname translation
- * (reverse DNS lookup in case of IPv4).
- *
- * This is meant for use on old IP-enabled systems that are not IPv6-aware,
- * and probably do not have getnameinfo(), but have the old gethostbyaddr()
- * function.
- *
- * GNU C library 2.0.x is known to lack this function, even though it defines
- * getaddrinfo().
- */
-static int
-__getnameinfo( const struct sockaddr *sa, socklen_t salen,
- char *host, int hostlen, char *serv, int servlen, int flags )
-{
- if (((unsigned)salen < sizeof (struct sockaddr_in))
- || (sa->sa_family != AF_INET))
- return EAI_FAMILY;
- else if (flags & (~_NI_MASK))
- return EAI_BADFLAGS;
- else
- {
- const struct sockaddr_in *addr;
-
- addr = (const struct sockaddr_in *)sa;
-
- if (host != NULL)
- {
- int solved = 0;
-
- /* host name resolution */
- if (!(flags & NI_NUMERICHOST))
- {
- struct hostent *hent;
-
- hent = gethostbyaddr ((const void*)&addr->sin_addr,
- 4, AF_INET);
-
- if (hent != NULL)
- {
- strncpy (host, hent->h_name, hostlen);
- host[hostlen - 1] = '\0';
-
- /*
- * only keep first part of hostname
- * if user don't want fully qualified
- * domain name
- */
- if (flags & NI_NOFQDN)
- {
- char *ptr;
-
- ptr = strchr (host, '.');
- if (ptr != NULL)
- *ptr = 0;
- }
-
- solved = 1;
- }
- else if (flags & NI_NAMEREQD)
- return gai_error_from_herrno ();
- }
-
- if (!solved)
- {
- /* inet_ntoa() can't fail */
- strncpy (host, inet_ntoa (addr->sin_addr), hostlen);
- host[hostlen - 1] = '\0';
- }
- }
-
- if (serv != NULL)
- {
- struct servent *sent = NULL;
-
-#ifndef SYS_BEOS /* No getservbyport() */
- int solved = 0;
-
- /* service name resolution */
- if (!(flags & NI_NUMERICSERV))
- {
-
- sent = getservbyport(addr->sin_port,
- (flags & NI_DGRAM)
- ? "udp" : "tcp");
- if (sent != NULL)
- {
- strncpy (serv, sent->s_name, servlen);
- serv[servlen - 1] = 0;
- solved = 1;
- }
- }
-#else
- sent = NULL;
-#endif
- if (sent == NULL)
- {
- snprintf (serv, servlen, "%u",
- (unsigned int)ntohs (addr->sin_port));
- serv[servlen - 1] = '\0';
- }
- }
- }
- return 0;
-}
-
-#endif /* if !HAVE_GETNAMEINFO */
-
-
-#ifndef HAVE_GETADDRINFO
-/*
- * This functions must be used to free the memory allocated by getaddrinfo().
- */
-static void
-__freeaddrinfo (struct addrinfo *res)
-{
- if (res != NULL)
- {
- if (res->ai_canonname != NULL)
- free (res->ai_canonname);
- if (res->ai_addr != NULL)
- free (res->ai_addr);
- if (res->ai_next != NULL)
- free (res->ai_next);
- free (res);
- }
-}
-
-
-/*
- * Internal function that builds an addrinfo struct.
- */
-static struct addrinfo *
-makeaddrinfo (int af, int type, int proto,
- const struct sockaddr *addr, size_t addrlen,
- const char *canonname)
-{
- struct addrinfo *res;
-
- res = (struct addrinfo *)malloc (sizeof (struct addrinfo));
- if (res != NULL)
- {
- res->ai_flags = 0;
- res->ai_family = af;
- res->ai_socktype = type;
- res->ai_protocol = proto;
- res->ai_addrlen = addrlen;
- res->ai_addr = malloc (addrlen);
- res->ai_canonname = NULL;
- res->ai_next = NULL;
-
- if (res->ai_addr != NULL)
- {
- memcpy (res->ai_addr, addr, addrlen);
-
- if (canonname != NULL)
- {
- res->ai_canonname = strdup (canonname);
- if (res->ai_canonname != NULL)
- return res; /* success ! */
- }
- else
- return res;
- }
- }
- /* failsafe */
- vlc_freeaddrinfo (res);
- return NULL;
-}
-
-
-static struct addrinfo *
-makeipv4info (int type, int proto, u_long ip, u_short port, const char *name)
-{
- struct sockaddr_in addr;
-
- memset (&addr, 0, sizeof (addr));
- addr.sin_family = AF_INET;
-# ifdef HAVE_SA_LEN
- addr.sin_len = sizeof (addr);
-# endif
- addr.sin_port = port;
- addr.sin_addr.s_addr = ip;
-
- return makeaddrinfo (AF_INET, type, proto,
- (struct sockaddr*)&addr, sizeof (addr), name);
-}
-
-
-/*
- * getaddrinfo() non-thread-safe IPv4-only implementation
- * Address-family-independant hostname to address resolution.
- *
- * This is meant for IPv6-unaware systems that do probably not provide
- * getaddrinfo(), but still have old function gethostbyname().
- *
- * Only UDP and TCP over IPv4 are supported here.
- */
-static int
-__getaddrinfo (const char *node, const char *service,
- const struct addrinfo *hints, struct addrinfo **res)
-{
- struct addrinfo *info;
- u_long ip;
- u_short port;
- int protocol = 0, flags = 0;
- const char *name = NULL;
-
- if (hints != NULL)
- {
- flags = hints->ai_flags;
-
- if (flags & ~_AI_MASK)
- return EAI_BADFLAGS;
- /* only accept AF_INET and AF_UNSPEC */
- if (hints->ai_family && (hints->ai_family != AF_INET))
- return EAI_FAMILY;
-
- /* protocol sanity check */
- switch (hints->ai_socktype)
- {
- case SOCK_STREAM:
- protocol = IPPROTO_TCP;
- break;
-
- case SOCK_DGRAM:
- protocol = IPPROTO_UDP;
- break;
-
-#ifndef SYS_BEOS
- case SOCK_RAW:
-#endif
- case 0:
- break;
-
- default:
- return EAI_SOCKTYPE;
- }
- if (hints->ai_protocol && protocol
- && (protocol != hints->ai_protocol))
- return EAI_SERVICE;
- }
-
- *res = NULL;
-
- /* default values */
- if (node == NULL)
- {
- if (flags & AI_PASSIVE)
- ip = htonl (INADDR_ANY);
- else
- ip = htonl (INADDR_LOOPBACK);
- }
- else
- if ((ip = inet_addr (node)) == INADDR_NONE)
- {
- struct hostent *entry = NULL;
-
- /* hostname resolution */
- if (!(flags & AI_NUMERICHOST))
- entry = gethostbyname (node);
-
- if (entry == NULL)
- return EAI_NONAME;
-
- if ((entry->h_length != 4) || (entry->h_addrtype != AF_INET))
- return EAI_FAMILY;
-
- ip = *((u_long *) entry->h_addr);
- if (flags & AI_CANONNAME)
- name = entry->h_name;
- }
-
- if ((flags & AI_CANONNAME) && (name == NULL))
- name = node;
-
- /* service resolution */
- if (service == NULL)
- port = 0;
- else
- {
- long d;
- char *end;
-
- d = strtoul (service, &end, 0);
- if (end[0] /* service is not a number */
- || (d > 65535))
- {
- struct servent *entry;
- const char *protoname;
-
- switch (protocol)
- {
- case IPPROTO_TCP:
- protoname = "tcp";
- break;
-
- case IPPROTO_UDP:
- protoname = "udp";
- break;
-
- default:
- protoname = NULL;
- }
-
- entry = getservbyname (service, protoname);
- if (entry == NULL)
- return EAI_SERVICE;
-
- port = entry->s_port;
- }
- else
- port = htons ((u_short)d);
- }
-
- /* building results... */
- if ((!protocol) || (protocol == IPPROTO_UDP))
- {
- info = makeipv4info (SOCK_DGRAM, IPPROTO_UDP, ip, port, name);
- if (info == NULL)
- {
- errno = ENOMEM;
- return EAI_SYSTEM;
- }
- if (flags & AI_PASSIVE)
- info->ai_flags |= AI_PASSIVE;
- *res = info;
- }
- if ((!protocol) || (protocol == IPPROTO_TCP))
- {
- info = makeipv4info (SOCK_STREAM, IPPROTO_TCP, ip, port, name);
- if (info == NULL)
- {
- errno = ENOMEM;
- return EAI_SYSTEM;
- }
- info->ai_next = *res;
- if (flags & AI_PASSIVE)
- info->ai_flags |= AI_PASSIVE;
- *res = info;
- }
-
- return 0;
-}
-#endif /* if !HAVE_GETADDRINFO */
-
-
int vlc_getnameinfo( const struct sockaddr *sa, int salen,
char *host, int hostlen, int *portnum, int flags )
{
char psz_servbuf[6], *psz_serv;
int i_servlen, i_val;
-#if defined( WIN32 ) && !defined( UNDER_CE )
- /*
- * Here is the kind of kludge you need to keep binary compatibility among
- * varying OS versions...
- */
- typedef int (CALLBACK * GETNAMEINFO) ( const struct sockaddr*, socklen_t,
- char*, DWORD, char*, DWORD, int );
- HINSTANCE wship6_module;
- GETNAMEINFO ws2_getnameinfo;
-#endif
flags |= NI_NUMERICSERV;
if( portnum != NULL )
psz_serv = NULL;
i_servlen = 0;
}
-#if defined( WIN32 ) && !defined( UNDER_CE )
- wship6_module = LoadLibrary( "wship6.dll" );
- if( wship6_module != NULL )
- {
- ws2_getnameinfo = (GETNAMEINFO)GetProcAddress( wship6_module,
- "getnameinfo" );
- if( ws2_getnameinfo != NULL )
- {
- i_val = ws2_getnameinfo( sa, salen, host, hostlen, psz_serv,
- i_servlen, flags );
- FreeLibrary( wship6_module );
-
- if( portnum != NULL )
- *portnum = atoi( psz_serv );
- return i_val;
- }
-
- FreeLibrary( wship6_module );
- }
-#endif
-#if defined( HAVE_GETNAMEINFO ) || defined( UNDER_CE )
i_val = getnameinfo(sa, salen, host, hostlen, psz_serv, i_servlen, flags);
-#else
- {
-# ifdef HAVE_USABLE_MUTEX_THAT_DONT_NEED_LIBVLC_POINTER
- static vlc_value_t lock;
-
- /* my getnameinfo implementation is not thread-safe as it uses
- * gethostbyaddr and the likes */
- vlc_mutex_lock( lock.p_address );
-#else
-//# warning FIXME : This is not thread-safe!
-#endif
- i_val = __getnameinfo( sa, salen, host, hostlen, psz_serv, i_servlen,
- flags );
-# ifdef HAVE_USABLE_MUTEX_THAT_DONT_NEED_LIBVLC_POINTER
- vlc_mutex_unlock( lock.p_address );
-# endif
- }
-#endif
if( portnum != NULL )
*portnum = atoi( psz_serv );
}
-/* TODO: support for setting sin6_scope_id */
+/**
+ * Resolves a host name to a list of socket addresses (like getaddrinfo()).
+ *
+ * @param p_this a VLC object
+ * @param node host name to resolve (encoded as UTF-8), or NULL
+ * @param i_port port number for the socket addresses
+ * @param p_hints parameters (see getaddrinfo() manual page)
+ * @param res pointer set to the resulting chained list.
+ * @return 0 on success, a getaddrinfo() error otherwise.
+ * On failure, *res is undefined. On success, it must be freed with
+ * freeaddrinfo().
+ */
int vlc_getaddrinfo( vlc_object_t *p_this, const char *node,
int i_port, const struct addrinfo *p_hints,
struct addrinfo **res )
{
struct addrinfo hints;
- char psz_buf[NI_MAXHOST], *psz_node, psz_service[6];
+ char psz_buf[NI_MAXHOST], psz_service[6];
/*
* In VLC, we always use port number as integer rather than strings
snprintf( psz_service, 6, "%d", i_port );
/* Check if we have to force ipv4 or ipv6 */
- if( p_hints == NULL )
- memset( &hints, 0, sizeof( hints ) );
- else
- memcpy( &hints, p_hints, sizeof( hints ) );
-
- if( hints.ai_family == AF_UNSPEC )
+ memset (&hints, 0, sizeof (hints));
+ if (p_hints != NULL)
{
- vlc_value_t val;
+ const int safe_flags =
+ AI_PASSIVE |
+ AI_CANONNAME |
+ AI_NUMERICHOST |
+ AI_NUMERICSERV |
+#ifdef AI_ALL
+ AI_ALL |
+#endif
+#ifdef AI_ADDRCONFIG
+ AI_ADDRCONFIG |
+#endif
+#ifdef AI_V4MAPPED
+ AI_V4MAPPED |
+#endif
+ 0;
+
+ hints.ai_family = p_hints->ai_family;
+ hints.ai_socktype = p_hints->ai_socktype;
+ hints.ai_protocol = p_hints->ai_protocol;
+ /* Unfortunately, some flags chang the layout of struct addrinfo, so
+ * they cannot be copied blindly from p_hints to &hints. Therefore, we
+ * only copy flags that we know for sure are "safe".
+ */
+ hints.ai_flags = p_hints->ai_flags & safe_flags;
+ }
- var_Create( p_this, "ipv4", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Get( p_this, "ipv4", &val );
- if( val.b_bool )
- hints.ai_family = AF_INET;
+ /* We only ever use port *numbers* */
+ hints.ai_flags |= AI_NUMERICSERV;
+ if( hints.ai_family == AF_UNSPEC )
+ {
#ifdef AF_INET6
- var_Create( p_this, "ipv6", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Get( p_this, "ipv6", &val );
- if( val.b_bool )
+ if (var_CreateGetBool (p_this, "ipv6"))
hints.ai_family = AF_INET6;
+ else
#endif
+ if (var_CreateGetBool (p_this, "ipv4"))
+ hints.ai_family = AF_INET;
}
- /*
+ /*
* VLC extensions :
* - accept "" as NULL
* - ignore square brackets
*/
- if( ( node == NULL ) || (node[0] == '\0' ) )
+ if (node != NULL)
{
- psz_node = NULL;
- }
- else
- {
- strncpy( psz_buf, node, NI_MAXHOST );
- psz_buf[NI_MAXHOST - 1] = '\0';
-
- psz_node = psz_buf;
-
- if( psz_buf[0] == '[' )
+ if (node[0] == '[')
{
- char *ptr;
-
- ptr = strrchr( psz_buf, ']' );
- if( ( ptr != NULL ) && (ptr[1] == '\0' ) )
+ size_t len = strlen (node + 1);
+ if ((len <= sizeof (psz_buf)) && (node[len] == ']'))
{
- *ptr = '\0';
- psz_node++;
+ assert (len > 0);
+ memcpy (psz_buf, node + 1, len - 1);
+ psz_buf[len - 1] = '\0';
+ node = psz_buf;
}
}
+ if (node[0] == '\0')
+ node = NULL;
}
-#if defined( WIN32 ) && !defined( UNDER_CE )
+ int ret;
+ node = ToLocale (node);
+#ifdef WIN32
+ /*
+ * Winsock tries to resolve numerical IPv4 addresses as AAAA
+ * and IPv6 addresses as A... There comes the bug-to-bug fix.
+ */
+ if ((hints.ai_flags & AI_NUMERICHOST) == 0)
{
- typedef int (CALLBACK * GETADDRINFO) ( const char *, const char *,
- const struct addrinfo *,
- struct addrinfo ** );
- HINSTANCE wship6_module;
- GETADDRINFO ws2_getaddrinfo;
-
- wship6_module = LoadLibrary( "wship6.dll" );
- if( wship6_module != NULL )
- {
- ws2_getaddrinfo = (GETADDRINFO)GetProcAddress( wship6_module,
- "getaddrinfo" );
-
- if( ws2_getaddrinfo != NULL )
- {
- int i_ret;
-
- i_ret = ws2_getaddrinfo( psz_node, psz_service, &hints, res );
- FreeLibrary( wship6_module ); /* is this wise ? */
- return i_ret;
- }
-
- FreeLibrary( wship6_module );
- }
+ hints.ai_flags |= AI_NUMERICHOST;
+ ret = getaddrinfo (node, psz_service, &hints, res);
+ if (ret == 0)
+ goto out;
+ hints.ai_flags &= ~AI_NUMERICHOST;
}
#endif
-#if defined( HAVE_GETADDRINFO ) || defined( UNDER_CE )
-# ifdef AI_IDN
+#ifdef AI_IDN
/* Run-time I18n Domain Names support */
- {
- static vlc_bool_t i_idn = VLC_TRUE; /* beware of thread-safety */
-
- if( i_idn )
- {
- int i_ret;
-
- hints.ai_flags |= AI_IDN;
- i_ret = getaddrinfo( psz_node, psz_service, &hints, res );
+ hints.ai_flags |= AI_IDN;
+ ret = getaddrinfo (node, psz_service, &hints, res);
+ if (ret != EAI_BADFLAGS)
+ goto out;
+ /* IDN not available: disable and retry without it */
+ hints.ai_flags &= ~AI_IDN;
+#endif
+ ret = getaddrinfo (node, psz_service, &hints, res);
- if( i_ret != EAI_BADFLAGS )
- return i_ret;
+#if defined(AI_IDN) || defined(WIN32)
+out:
+#endif
+ LocaleFree (node);
+ return ret;
+}
- /* libidn not available: disable and retry without it */
- /* NOTE: Using i_idn here would not be thread-safe */
- hints.ai_flags &= ~AI_IDN;
- i_idn = VLC_FALSE;
- msg_Dbg( p_this, "I18n Domain Names not supported - disabled" );
- }
- }
-# endif
- return getaddrinfo( psz_node, psz_service, &hints, res );
-#else
+/**
+ * inet_pton() replacement
+ */
+int vlc_inet_pton (int af, const char *src, void *dst)
{
- int i_ret;
-
- vlc_value_t lock;
-
- var_Create( p_this->p_libvlc, "getaddrinfo_mutex", VLC_VAR_MUTEX );
- var_Get( p_this->p_libvlc, "getaddrinfo_mutex", &lock );
- vlc_mutex_lock( lock.p_address );
-
- i_ret = __getaddrinfo( psz_node, psz_service, &hints, res );
- vlc_mutex_unlock( lock.p_address );
- return i_ret;
-}
+#ifndef HAVE_INET_PTON
+ /* Windows Vista has inet_pton(), but not XP. */
+ /* We have a pretty good example of abstraction inversion here... */
+ struct addrinfo hints = {
+ .ai_family = af,
+ .ai_socktype = SOCK_DGRAM, /* make sure we have... */
+ .ai_protocol = IPPROTO_UDP, /* ...only one response */
+ .ai_flags = AI_NUMERICHOST,
+ }, *res;
+
+ if (getaddrinfo (src, NULL, &hints, &res))
+ return 0;
+
+ const void *data;
+ size_t len;
+
+ switch (af)
+ {
+ case AF_INET:
+ data = &((const struct sockaddr_in *)res->ai_addr)->sin_addr;
+ len = sizeof (struct in_addr);
+ break;
+#ifdef AF_INET6
+ case AF_INET6:
+ data = &((const struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
+ len = sizeof (struct in6_addr);
+ break;
#endif
+ default:
+ freeaddrinfo (res);
+ return -1;
+ }
+ memcpy (dst, data, len);
+ freeaddrinfo (res);
+ return 1;
+#else /* HAVE_INET_PTON */
+ return inet_pton( af, src, dst );
+#endif /* HAVE_INET_PTON */
}
-
-void vlc_freeaddrinfo( struct addrinfo *infos )
+/**
+ * inet_ntop() replacement
+ */
+const char *vlc_inet_ntop (int af, const void *src, char *dst, socklen_t cnt)
{
-#if defined( WIN32 ) && !defined( UNDER_CE )
- typedef void (CALLBACK * FREEADDRINFO) ( struct addrinfo * );
- HINSTANCE wship6_module;
- FREEADDRINFO ws2_freeaddrinfo;
-
- wship6_module = LoadLibrary( "wship6.dll" );
- if( wship6_module != NULL )
- {
- ws2_freeaddrinfo = (FREEADDRINFO)GetProcAddress( wship6_module,
- "freeaddrinfo" );
+#ifndef HAVE_INET_NTOP
+ int ret = EAI_FAMILY;
- /*
- * NOTE: it is assumed that wship6.dll defines either both
- * getaddrinfo and freeaddrinfo or none of them.
- */
- if( ws2_freeaddrinfo != NULL )
- {
- ws2_freeaddrinfo( infos );
- FreeLibrary( wship6_module );
- return;
- }
+ switch (af)
+ {
+#ifdef AF_INET6
+ case AF_INET6:
+ {
+ struct sockaddr_in6 addr;
+ memset (&addr, 0, sizeof(addr));
+ addr.sin6_family = AF_INET6;
+ addr.sin6_addr = *(struct in6_addr *)src;
+ ret = getnameinfo ((struct sockaddr *)&addr, sizeof (addr),
+ dst, cnt, NULL, 0, NI_NUMERICHOST);
+ }
- FreeLibrary( wship6_module );
- }
-#endif
-#if defined( HAVE_GETADDRINFO ) || defined( UNDER_CE )
- freeaddrinfo( infos );
-#else
- __freeaddrinfo( infos );
#endif
+ case AF_INET:
+ {
+ struct sockaddr_in addr;
+ memset(&addr, 0, sizeof(addr));
+ addr.sin_family = AF_INET;
+ addr.sin_addr = *(struct in_addr *)src;
+ ret = getnameinfo ((struct sockaddr *)&addr, sizeof (addr),
+ dst, cnt, NULL, 0, NI_NUMERICHOST);
+ }
+ }
+ return (ret == 0) ? dst : NULL;
+#else /* HAVE_INET_NTOP */
+ return inet_ntop( af, src, dst, cnt );
+#endif /* HAVE_INET_NTOP */
}
+
projects / vlc / blobdiff