X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libraries%2Flibldap%2Fos-ip.c;h=57195918db1ef1a4f12fa1161cd68ada0155658a;hb=afa2cd1893875266c58677cc640514c1d9eef41f;hp=c1c75e894ba527b0b879eb2917330abf92fa9a3e;hpb=a56c161bdbc1443808039d0eaf9b84474a243352;p=openldap

diff --git a/libraries/libldap/os-ip.c b/libraries/libldap/os-ip.c
index c1c75e894b..57195918db 100644
--- a/libraries/libldap/os-ip.c
+++ b/libraries/libldap/os-ip.c
@@ -1,6 +1,6 @@
 /* $OpenLDAP$ */
 /*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
  */
 /*  Portions
@@ -30,6 +30,14 @@
 
 int ldap_int_tblsize = 0;
 
+#if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
+#  ifdef LDAP_PF_INET6
+int ldap_int_inet4or6 = AF_UNSPEC;
+#  else
+int ldap_int_inet4or6 = AF_INET;
+#  endif
+#endif
+
 /*
  * nonblock connect code
  * written by Lars Uffmann, <lars.uffmann@mediaway.net>.
@@ -44,11 +52,19 @@ int ldap_int_tblsize = 0;
  * ftp://koobera.math.uic.edu/www/docs/connect.html.
  */
 
+#ifdef LDAP_DEBUG
+
 #define osip_debug(ld,fmt,arg1,arg2,arg3) \
 do { \
 	ldap_log_printf(NULL, LDAP_DEBUG_TRACE, fmt, arg1, arg2, arg3); \
 } while(0)
 
+#else
+
+#define osip_debug(ld,fmt,arg1,arg2,arg3) ((void)0)
+
+#endif /* LDAP_DEBUG */
+
 static void
 ldap_pvt_set_errno(int err)
 {
@@ -74,7 +90,7 @@ ldap_int_timeval_dup( struct timeval **dest, const struct timeval *src )
 		return 1;
 	}
 
-	SAFEMEMCPY( (char *) new, (const char *) src, sizeof(struct timeval));
+	AC_MEMCPY( (char *) new, (const char *) src, sizeof(struct timeval));
 
 	*dest = new;
 	return 0;
@@ -95,9 +111,9 @@ ldap_pvt_ndelay_off(LDAP *ld, int fd)
 }
 
 static ber_socket_t
-ldap_pvt_socket(LDAP *ld)
+ldap_int_socket(LDAP *ld, int family, int type )
 {
-	ber_socket_t s = socket(AF_INET, SOCK_STREAM, 0);
+	ber_socket_t s = socket(family, type, 0);
 	osip_debug(ld, "ldap_new_socket: %d\n",s,0,0);
 	return ( s );
 }
@@ -110,25 +126,28 @@ ldap_pvt_close_socket(LDAP *ld, int s)
 }
 
 static int
-ldap_pvt_prepare_socket(LDAP *ld, int fd)
+ldap_int_prepare_socket(LDAP *ld, int s, int proto )
 {
-	osip_debug(ld, "ldap_prepare_socket: %d\n",fd,0,0);
+	osip_debug(ld, "ldap_prepare_socket: %d\n", s,0,0);
 
 #ifdef TCP_NODELAY
-{
-	int dummy = 1;
-	if ( setsockopt( fd, IPPROTO_TCP, TCP_NODELAY,
-		(char*) &dummy, sizeof(dummy) ) == AC_SOCKET_ERROR )
-	{
-		osip_debug(ld, "ldap_prepare_socket: "
-			"setsockopt(%d, TCP_NODELAY) failed (ignored).\n",
-			fd, 0, 0);
+	if( proto == LDAP_PROTO_TCP ) {
+		int dummy = 1;
+		if ( setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
+			(char*) &dummy, sizeof(dummy) ) == AC_SOCKET_ERROR )
+		{
+			osip_debug(ld, "ldap_prepare_socket: "
+				"setsockopt(%d, TCP_NODELAY) failed (ignored).\n",
+				s, 0, 0);
+		}
 	}
-}
 #endif
+
 	return 0;
 }
 
+#ifndef HAVE_WINSOCK
+
 #undef TRACE
 #define TRACE do { \
 	osip_debug(ld, \
@@ -149,8 +168,10 @@ ldap_pvt_is_socket_ready(LDAP *ld, int s)
 #if defined( notyet ) /* && defined( SO_ERROR ) */
 {
 	int so_errno;
-	int dummy = sizeof(so_errno);
-	if ( getsockopt( s, SOL_SOCKET, SO_ERROR, &so_errno, &dummy ) == -1 ) {
+	socklen_t dummy = sizeof(so_errno);
+	if ( getsockopt( s, SOL_SOCKET, SO_ERROR, &so_errno, &dummy )
+		== AC_SOCKET_ERROR )
+	{
 		return -1;
 	}
 	if ( so_errno ) {
@@ -163,15 +184,18 @@ ldap_pvt_is_socket_ready(LDAP *ld, int s)
 #else
 {
 	/* error slippery */
+#ifdef LDAP_PF_INET6
+	struct sockaddr_storage sin;
+#else
 	struct sockaddr_in sin;
+#endif
 	char ch;
-	int dummy = sizeof(sin);
-	if ( getpeername( s, (struct sockaddr *) &sin, &dummy ) == -1 ) {
+	socklen_t dummy = sizeof(sin);
+	if ( getpeername( s, (struct sockaddr *) &sin, &dummy )
+		== AC_SOCKET_ERROR )
+	{
 		/* XXX: needs to be replace with ber_stream_read() */
 		read(s, &ch, 1);
-#ifdef HAVE_WINSOCK
-		ldap_pvt_set_errno( WSAGetLastError() );
-#endif
 		TRACE;
 		return -1;
 	}
@@ -182,15 +206,32 @@ ldap_pvt_is_socket_ready(LDAP *ld, int s)
 }
 #undef TRACE
 
+#endif /* HAVE_WINSOCK */
+
 static int
-ldap_pvt_connect(LDAP *ld, ber_socket_t s, struct sockaddr_in *sin, int async)
+ldap_pvt_connect(LDAP *ld, ber_socket_t s,
+	struct sockaddr *sin, socklen_t addrlen,
+	int async)
 {
+	int rc;
 	struct timeval	tv, *opt_tv=NULL;
 	fd_set		wfds, *z=NULL;
 #ifdef HAVE_WINSOCK
 	fd_set		efds;
 #endif
 
+#ifdef LDAP_CONNECTIONLESS
+	/* We could do a connect() but that would interfere with
+	 * attempts to poll a broadcast address
+	 */
+	if (LDAP_IS_UDP(ld)) {
+		if (ld->ld_options.ldo_peer)
+			ldap_memfree(ld->ld_options.ldo_peer);
+		ld->ld_options.ldo_peer=ldap_memalloc(sizeof(struct sockaddr));
+		AC_MEMCPY(ld->ld_options.ldo_peer,sin,sizeof(struct sockaddr));
+		return ( 0 );
+	}
+#endif
 	if ( (opt_tv = ld->ld_options.ldo_tm_net) != NULL ) {
 		tv.tv_usec = opt_tv->tv_usec;
 		tv.tv_sec = opt_tv->tv_sec;
@@ -202,8 +243,7 @@ ldap_pvt_connect(LDAP *ld, ber_socket_t s, struct sockaddr_in *sin, int async)
 	if ( ldap_pvt_ndelay_on(ld, s) == -1 )
 		return ( -1 );
 
-	if ( connect(s, (struct sockaddr *) sin, sizeof(struct sockaddr_in)) == 0 )
-	{
+	if ( connect(s, sin, addrlen) != AC_SOCKET_ERROR ) {
 		if ( ldap_pvt_ndelay_off(ld, s) == -1 )
 			return ( -1 );
 		return ( 0 );
@@ -229,28 +269,41 @@ ldap_pvt_connect(LDAP *ld, ber_socket_t s, struct sockaddr_in *sin, int async)
 	FD_SET(s, &efds );
 #endif
 
-	if ( select(ldap_int_tblsize, z, &wfds,
+	do {
+		rc = select(ldap_int_tblsize, z, &wfds,
 #ifdef HAVE_WINSOCK
-		    &efds,
+			&efds,
 #else
-		    z,
+			z,
 #endif
-		    opt_tv ? &tv : NULL) == -1)
-		return ( -1 );
+			opt_tv ? &tv : NULL);
+	} while( rc == AC_SOCKET_ERROR && errno == EINTR &&
+		LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART ));
+
+	if( rc == AC_SOCKET_ERROR ) return rc;
 
 #ifdef HAVE_WINSOCK
 	/* This means the connection failed */
-	if (FD_ISSET(s, &efds))
-	{
-	    ldap_pvt_set_errno(WSAECONNREFUSED);
+	if ( FD_ISSET(s, &efds) ) {
+	    int so_errno;
+	    int dummy = sizeof(so_errno);
+	    if ( getsockopt( s, SOL_SOCKET, SO_ERROR,
+			(char *) &so_errno, &dummy ) == AC_SOCKET_ERROR || !so_errno )
+	    {
+	    	/* impossible */
+	    	so_errno = WSAGetLastError();
+	    }
+	    ldap_pvt_set_errno(so_errno);
 	    osip_debug(ld, "ldap_pvt_connect: error on socket %d: "
 		       "errno: %d (%s)\n", s, errno, sock_errstr(errno));
 	    return -1;
 	}
 #endif
 	if ( FD_ISSET(s, &wfds) ) {
+#ifndef HAVE_WINSOCK
 		if ( ldap_pvt_is_socket_ready(ld, s) == -1 )
 			return ( -1 );
+#endif
 		if ( ldap_pvt_ndelay_off(ld, s) == -1 )
 			return ( -1 );
 		return ( 0 );
@@ -275,66 +328,173 @@ ldap_pvt_inet_aton( const char *host, struct in_addr *in)
 
 
 int
-ldap_connect_to_host(LDAP *ld, Sockbuf *sb, const char *host,
-		unsigned long address, int port, int async)
+ldap_connect_to_host(LDAP *ld, Sockbuf *sb,
+	int proto,
+	const char *host, int port,
+	int async )
 {
-	struct sockaddr_in	sin;
-	struct in_addr		in;
+	int	rc;
+	int	socktype;
 	ber_socket_t		s = AC_SOCKET_INVALID;
-	int			rc, i, use_hp = 0;
-	struct hostent		*hp, he_buf;
-   	int			local_h_errno;
-	char   			*ha_buf=NULL, *p, *q;
 
-	osip_debug(ld, "ldap_connect_to_host\n",0,0,0);
+#if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
+	char serv[7];
+	int err;
+	struct addrinfo hints, *res, *sai;
+#else
+	int i;
+	int use_hp = 0;
+	struct hostent *hp = NULL;
+	struct hostent he_buf;
+	struct in_addr in;
+	char *ha_buf=NULL;
+#endif
+
+	if( host == NULL ) host = "localhost";
 	
-	if (host != NULL) {
-		if (! inet_aton( host, &in) ) {
-			rc = ldap_pvt_gethostbyname_a(host, &he_buf, &ha_buf,
-					&hp, &local_h_errno);
+	switch(proto) {
+	case LDAP_PROTO_TCP: socktype = SOCK_STREAM;
+		osip_debug( ld,
+			"ldap_connect_to_host: TCP %s:%d\n",
+			host, port, 0);
+		break;
+	case LDAP_PROTO_UDP: socktype = SOCK_DGRAM;
+		osip_debug( ld,
+			"ldap_connect_to_host: UDP %s:%d\n",
+			host, port, 0);
+		break;
+	default:
+		osip_debug( ld, "ldap_connect_to_host: unknown proto: %d\n",
+			proto, 0, 0 );
+		return -1;
+	}
+
+#if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
+	memset( &hints, '\0', sizeof(hints) );
+	hints.ai_family = ldap_int_inet4or6;
+	hints.ai_socktype = socktype;
+	snprintf(serv, sizeof serv, "%d", port );
+
+#ifdef LDAP_R_COMPILE
+	/* most getaddrinfo(3) use non-threadsafe resolver libraries */
+	ldap_pvt_thread_mutex_lock(&ldap_int_resolv_mutex);
+#endif
+
+	err = getaddrinfo( host, serv, &hints, &res );
+
+#ifdef LDAP_R_COMPILE
+	ldap_pvt_thread_mutex_unlock(&ldap_int_resolv_mutex);
+#endif
+
+	if ( err != 0 ) {
+		osip_debug(ld, "ldap_connect_to_host: getaddrinfo failed: %s\n",
+			AC_GAI_STRERROR(err), 0, 0);
+		return -1;
+	}
+	rc = -1;
+
+	for( sai=res; sai != NULL; sai=sai->ai_next) {
+		if( sai->ai_addr == NULL ) {
+			osip_debug(ld, "ldap_connect_to_host: getaddrinfo "
+				"ai_addr is NULL?\n", 0, 0, 0);
+			continue;
+		}
 
-			if ( rc < 0 )
-				; /*XXX NO MEMORY? */
+		/* we assume AF_x and PF_x are equal for all x */
+		s = ldap_int_socket( ld, sai->ai_family, socktype );
+		if ( s == AC_SOCKET_INVALID ) {
+			continue;
+		}
 
-			if ( (rc < 0) || (hp == NULL) ) {
+		if ( ldap_int_prepare_socket(ld, s, proto ) == -1 ) {
+			ldap_pvt_close_socket(ld, s);
+			break;
+		}
+
+		switch (sai->ai_family) {
+#ifdef LDAP_PF_INET6
+			case AF_INET6: {
+				char addr[INET6_ADDRSTRLEN];
+				inet_ntop( AF_INET6,
+					&((struct sockaddr_in6 *)sai->ai_addr)->sin6_addr,
+					addr, sizeof addr);
+				osip_debug(ld, "ldap_connect_to_host: Trying %s %s\n", 
+					addr, serv, 0);
+			} break;
+#endif
+			case AF_INET: {
+				char addr[INET_ADDRSTRLEN];
+				inet_ntop( AF_INET,
+					&((struct sockaddr_in *)sai->ai_addr)->sin_addr,
+					addr, sizeof addr);
+				osip_debug(ld, "ldap_connect_to_host: Trying %s:%s\n", 
+					addr, serv, 0);
+			} break;
+		}
+
+		rc = ldap_pvt_connect( ld, s,
+			sai->ai_addr, sai->ai_addrlen, async );
+		if ( (rc == 0) || (rc == -2) ) {
+			ber_sockbuf_ctrl( sb, LBER_SB_OPT_SET_FD, &s );
+			break;
+		}
+		ldap_pvt_close_socket(ld, s);
+	}
+	freeaddrinfo(res);
+
+#else
+	if (! inet_aton( host, &in ) ) {
+		int local_h_errno;
+		rc = ldap_pvt_gethostbyname_a( host, &he_buf, &ha_buf,
+			&hp, &local_h_errno );
+
+		if ( (rc < 0) || (hp == NULL) ) {
 #ifdef HAVE_WINSOCK
-				ldap_pvt_set_errno( WSAGetLastError() );
+			ldap_pvt_set_errno( WSAGetLastError() );
 #else
-				/* not exactly right, but... */
-				ldap_pvt_set_errno( EHOSTUNREACH );
+			/* not exactly right, but... */
+			ldap_pvt_set_errno( EHOSTUNREACH );
 #endif
-				if (ha_buf) LDAP_FREE(ha_buf);
-				return -1;
-			}
-			use_hp = 1;
+			if (ha_buf) LDAP_FREE(ha_buf);
+			return -1;
 		}
-		address = in.s_addr;
+
+		use_hp = 1;
 	}
 
 	rc = s = -1;
 	for ( i = 0; !use_hp || (hp->h_addr_list[i] != 0); ++i, rc = -1 ) {
+		struct sockaddr_in	sin;
 
-		if ( (s = ldap_pvt_socket( ld )) == -1 )
+		s = ldap_int_socket( ld, PF_INET, socktype );
+		if ( s == AC_SOCKET_INVALID ) {
 			/* use_hp ? continue : break; */
 			break;
+		}
 	   
-		if ( ldap_pvt_prepare_socket(ld, s) == -1 ) {
+		if ( ldap_int_prepare_socket( ld, s, proto ) == -1 ) {
 			ldap_pvt_close_socket(ld, s);
-			/* use_hp ? continue : break; */
 			break;
 		}
 
-		(void)memset((char *)&sin, '\0', sizeof(struct sockaddr_in));
+		(void)memset((char *)&sin, '\0', sizeof sin);
 		sin.sin_family = AF_INET;
-		sin.sin_port = port;
-		p = (char *)&sin.sin_addr;
-		q = use_hp ? (char *)hp->h_addr_list[i] : (char *)&address;
-		SAFEMEMCPY(p, q, sizeof(sin.sin_addr) );
+		sin.sin_port = htons((short) port);
+
+		if( use_hp ) {
+			AC_MEMCPY( &sin.sin_addr, hp->h_addr_list[i],
+				sizeof(sin.sin_addr) );
+		} else {
+			AC_MEMCPY( &sin.sin_addr, &in.s_addr,
+				sizeof(sin.sin_addr) );
+		}
 
 		osip_debug(ld, "ldap_connect_to_host: Trying %s:%d\n", 
-				inet_ntoa(sin.sin_addr),ntohs(sin.sin_port),0);
+			inet_ntoa(sin.sin_addr), port, 0);
 
-		rc = ldap_pvt_connect(ld, s, &sin, async);
+		rc = ldap_pvt_connect(ld, s,
+			(struct sockaddr *)&sin, sizeof(sin),
+			async);
    
 		if ( (rc == 0) || (rc == -2) ) {
 			ber_sockbuf_ctrl( sb, LBER_SB_OPT_SET_FD, &s );
@@ -343,33 +503,34 @@ ldap_connect_to_host(LDAP *ld, Sockbuf *sb, const char *host,
 
 		ldap_pvt_close_socket(ld, s);
 
-		if (!use_hp)
-			break;
+		if (!use_hp) break;
 	}
 	if (ha_buf) LDAP_FREE(ha_buf);
+#endif
+
 	return rc;
 }
 
-#if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND ) || defined( HAVE_TLS ) || defined( HAVE_CYRUS_SASL )
+#if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND ) || \
+	defined( HAVE_CYRUS_SASL )
 char *
-ldap_host_connected_to( Sockbuf *sb )
+ldap_host_connected_to( Sockbuf *sb, const char *host )
 {
-	struct hostent		*hp;
-	socklen_t         	len;
-	struct sockaddr_in	sin;
-
-   	/* buffers for gethostbyaddr_r */
-   	struct hostent		he_buf;
-        int			local_h_errno;
-   	char			*ha_buf=NULL;
-	ber_socket_t		sd;
-#define DO_RETURN(x) if (ha_buf) LDAP_FREE(ha_buf); return (x);
-   
-	(void)memset( (char *)&sin, '\0', sizeof( struct sockaddr_in ));
-	len = sizeof( sin );
+	socklen_t		len;
+#ifdef LDAP_PF_INET6
+	struct sockaddr_storage sabuf;
+#else
+	struct sockaddr sabuf;
+#endif
+	struct sockaddr	*sa = (struct sockaddr *) &sabuf;
+	int rc;
+	ber_socket_t	sd;
+
+	(void)memset( (char *)sa, '\0', sizeof sabuf );
+	len = sizeof sabuf;
 
 	ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
-	if ( getpeername( sd, (struct sockaddr *)&sin, &len ) == -1 ) {
+	if ( getpeername( sd, sa, &len ) == -1 ) {
 		return( NULL );
 	}
 
@@ -378,22 +539,69 @@ ldap_host_connected_to( Sockbuf *sb )
 	 * this is necessary for kerberos to work right, since the official
 	 * hostname is used as the kerberos instance.
 	 */
-	if ((ldap_pvt_gethostbyaddr_a( (char *) &sin.sin_addr,
-		sizeof( sin.sin_addr ), 
-		AF_INET, &he_buf, &ha_buf,
-		&hp,&local_h_errno ) ==0 ) && (hp != NULL) )
+
+	switch (sa->sa_family) {
+#ifdef LDAP_PF_LOCAL
+	case AF_LOCAL:
+		return LDAP_STRDUP( ldap_int_hostname );
+#endif
+#ifdef LDAP_PF_INET6
+	case AF_INET6:
+		{
+			struct in6_addr localhost = IN6ADDR_LOOPBACK_INIT;
+			if( memcmp ( &((struct sockaddr_in6 *)sa)->sin6_addr,
+				&localhost, sizeof(localhost)) == 0 )
+			{
+				return LDAP_STRDUP( ldap_int_hostname );
+			}
+		}
+		break;
+#endif
+	case AF_INET:
+		{
+			struct in_addr localhost;
+			localhost.s_addr = htonl( INADDR_ANY );
+
+			if( memcmp ( &((struct sockaddr_in *)sa)->sin_addr,
+				&localhost, sizeof(localhost) ) == 0 )
+			{
+				return LDAP_STRDUP( ldap_int_hostname );
+			}
+
+#ifdef INADDR_LOOPBACK
+			localhost.s_addr = htonl( INADDR_LOOPBACK );
+
+			if( memcmp ( &((struct sockaddr_in *)sa)->sin_addr,
+				&localhost, sizeof(localhost) ) == 0 )
+			{
+				return LDAP_STRDUP( ldap_int_hostname );
+			}
+#endif
+		}
+		break;
+
+	default:
+		return( NULL );
+		break;
+	}
+
+#if 0
 	{
-		if ( hp->h_name != NULL ) {
-			char *host = LDAP_STRDUP( hp->h_name );   
-			DO_RETURN( host );
+		char *herr;
+		char hbuf[NI_MAXHOST];
+		hbuf[0] = 0;
+
+		if (ldap_pvt_get_hname( sa, len, hbuf, sizeof(hbuf), &herr ) == 0
+			&& hbuf[0] ) 
+		{
+			return LDAP_STRDUP( hbuf );   
 		}
 	}
+#endif
 
-	DO_RETURN( NULL );
+	return host ? LDAP_STRDUP( host ) : NULL;
 }
-#undef DO_RETURN   
-   
-#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND || HAVE_TLS */
+#endif
 
 
 /* for UNIX */
@@ -518,11 +726,15 @@ ldap_int_ip_init( void )
 
 
 int
-do_ldap_select( LDAP *ld, struct timeval *timeout )
+ldap_int_select( LDAP *ld, struct timeval *timeout )
 {
 	struct selectinfo	*sip;
 
-	Debug( LDAP_DEBUG_TRACE, "do_ldap_select\n", 0, 0, 0 );
+#ifdef NEW_LOGGING
+	LDAP_LOG ( CONNECTION, ENTRY, "ldap_int_select\n", 0, 0, 0 );
+#else
+	Debug( LDAP_DEBUG_TRACE, "ldap_int_select\n", 0, 0, 0 );
+#endif
 
 	if ( ldap_int_tblsize == 0 )
 		ldap_int_ip_init();