]> git.sur5r.net Git - openldap/blobdiff - libraries/libldap/os-ip.c
Changes from HEAD for beta
[openldap] / libraries / libldap / os-ip.c
index d579eab02157a00f4eedee3831ae6ff34ae503d6..57195918db1ef1a4f12fa1161cd68ada0155658a 100644 (file)
@@ -1,6 +1,6 @@
 /* $OpenLDAP$ */
 /*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
  */
 /*  Portions
 
 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)
 {
@@ -152,7 +168,7 @@ ldap_pvt_is_socket_ready(LDAP *ld, int s)
 #if defined( notyet ) /* && defined( SO_ERROR ) */
 {
        int so_errno;
-       int dummy = sizeof(so_errno);
+       socklen_t dummy = sizeof(so_errno);
        if ( getsockopt( s, SOL_SOCKET, SO_ERROR, &so_errno, &dummy )
                == AC_SOCKET_ERROR )
        {
@@ -168,9 +184,13 @@ 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);
+       socklen_t dummy = sizeof(sin);
        if ( getpeername( s, (struct sockaddr *) &sin, &dummy )
                == AC_SOCKET_ERROR )
        {
@@ -193,6 +213,7 @@ 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
@@ -222,8 +243,7 @@ ldap_pvt_connect(LDAP *ld, ber_socket_t s,
        if ( ldap_pvt_ndelay_on(ld, s) == -1 )
                return ( -1 );
 
-       if ( connect(s, sin, addrlen) != AC_SOCKET_ERROR )
-       {
+       if ( connect(s, sin, addrlen) != AC_SOCKET_ERROR ) {
                if ( ldap_pvt_ndelay_off(ld, s) == -1 )
                        return ( -1 );
                return ( 0 );
@@ -249,24 +269,26 @@ ldap_pvt_connect(LDAP *ld, ber_socket_t s,
        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) == AC_SOCKET_ERROR )
-       {
-               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) ) {
            int so_errno;
            int dummy = sizeof(so_errno);
-           if ( getsockopt( s, SOL_SOCKET, SO_ERROR, &so_errno, &dummy )
-               == AC_SOCKET_ERROR || !so_errno )
+           if ( getsockopt( s, SOL_SOCKET, SO_ERROR,
+                       (char *) &so_errno, &dummy ) == AC_SOCKET_ERROR || !so_errno )
            {
                /* impossible */
                so_errno = WSAGetLastError();
@@ -308,63 +330,88 @@ ldap_pvt_inet_aton( const char *host, struct in_addr *in)
 int
 ldap_connect_to_host(LDAP *ld, Sockbuf *sb,
        int proto,
-       const char *host,
-       unsigned long address, int port, int async )
+       const char *host, int port,
+       int async )
 {
-       struct sockaddr_in      sin;
+       int     rc;
+       int     socktype;
        ber_socket_t            s = AC_SOCKET_INVALID;
-       int                     rc, i, use_hp = 0;
-       struct hostent          *hp = NULL;
-       char                    *ha_buf=NULL, *p, *q;
-       int                     socktype;
 
-       osip_debug(ld, "ldap_connect_to_host: %s\n",host,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";
        
        switch(proto) {
-       case LDAP_PROTO_TCP: socktype = SOCK_STREAM; break;
-       case LDAP_PROTO_UDP: socktype = SOCK_DGRAM; break;
-       default: osip_debug(ld, "ldap_connect_to_host: unknown proto: %d\n",
-                               proto, 0, 0);
+       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 (host != NULL) {
 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
-               char serv[7];
-               int err;
-               struct addrinfo hints, *res, *sai;
-
-               memset( &hints, '\0', sizeof(hints) );
-               hints.ai_family = AF_UNSPEC;
-               hints.ai_socktype = socktype;
-
-               snprintf(serv, sizeof serv, "%d", port );
-               if ( err = getaddrinfo(host, serv, &hints, &res) ) {
-                       osip_debug(ld, "ldap_connect_to_host: getaddrinfo failed: %s\n",
-                               AC_GAI_STRERROR(err), 0, 0);
-                       return -1;
-               }
-               rc = -1;
+       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
 
-               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;
-                       }
+       err = getaddrinfo( host, serv, &hints, &res );
 
-                       /* 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;
-                       }
+#ifdef LDAP_R_COMPILE
+       ldap_pvt_thread_mutex_unlock(&ldap_int_resolv_mutex);
+#endif
 
-                       if ( ldap_int_prepare_socket(ld, s, proto ) == -1 ) {
-                               ldap_pvt_close_socket(ld, s);
-                               break;
-                       }
+       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;
+               }
+
+               /* 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 ( ldap_int_prepare_socket(ld, s, proto ) == -1 ) {
+                       ldap_pvt_close_socket(ld, s);
+                       break;
+               }
 
-                       switch (sai->ai_family) {
+               switch (sai->ai_family) {
 #ifdef LDAP_PF_INET6
                        case AF_INET6: {
                                char addr[INET6_ADDRSTRLEN];
@@ -383,44 +430,42 @@ ldap_connect_to_host(LDAP *ld, Sockbuf *sb,
                                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);
+               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;
                }
-               freeaddrinfo(res);
-               return rc;
+               ldap_pvt_close_socket(ld, s);
+       }
+       freeaddrinfo(res);
 
 #else
-               struct in_addr in;
-               if (! inet_aton( host, &in) ) {
-                       int local_h_errno;
-                       struct hostent he_buf;
-                       rc = ldap_pvt_gethostbyname_a(host, &he_buf, &ha_buf,
-                                       &hp, &local_h_errno);
-
-                       if ( (rc < 0) || (hp == NULL) ) {
+       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;
-#endif
+
+               use_hp = 1;
        }
 
        rc = s = -1;
        for ( i = 0; !use_hp || (hp->h_addr_list[i] != 0); ++i, rc = -1 ) {
+               struct sockaddr_in      sin;
+
                s = ldap_int_socket( ld, PF_INET, socktype );
                if ( s == AC_SOCKET_INVALID ) {
                        /* use_hp ? continue : break; */
@@ -432,18 +477,23 @@ ldap_connect_to_host(LDAP *ld, Sockbuf *sb,
                        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 = htons((short) port);
-               p = (char *)&sin.sin_addr;
-               q = use_hp ? (char *)hp->h_addr_list[i] : (char *)&address;
-               AC_MEMCPY(p, q, sizeof(sin.sin_addr) );
+
+               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),port,0);
+                       inet_ntoa(sin.sin_addr), port, 0);
 
                rc = ldap_pvt_connect(ld, s,
-                       (struct sockaddr *)&sin, sizeof(struct sockaddr_in),
+                       (struct sockaddr *)&sin, sizeof(sin),
                        async);
    
                if ( (rc == 0) || (rc == -2) ) {
@@ -453,35 +503,34 @@ ldap_connect_to_host(LDAP *ld, Sockbuf *sb,
 
                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_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 sa;
-       char                    *addr;
-       char                    *host;
-
-       /* buffers for gethostbyaddr_r */
-       struct hostent  he_buf;
-       int                             local_h_errno;
-       char                    *ha_buf=NULL;
+#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( struct sockaddr ));
-       len = sizeof( sa );
+       (void)memset( (char *)sa, '\0', sizeof sabuf );
+       len = sizeof sabuf;
 
        ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
-       if ( getpeername( sd, &sa, &len ) == -1 ) {
+       if ( getpeername( sd, sa, &len ) == -1 ) {
                return( NULL );
        }
 
@@ -491,38 +540,39 @@ ldap_host_connected_to( Sockbuf *sb )
         * hostname is used as the kerberos instance.
         */
 
-       switch (sa.sa_family) {
+       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:
-               addr = (char *) &((struct sockaddr_in6 *)&sa)->sin6_addr;
-               len = sizeof( struct in6_addr );
+               {
+                       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:
-               addr = (char *) &((struct sockaddr_in *)&sa)->sin_addr;
-               len = sizeof( struct in_addr );
-
                {
-                       struct sockaddr_in localhost;
-                       localhost.sin_addr.s_addr = htonl( INADDR_ANY );
+                       struct in_addr localhost;
+                       localhost.s_addr = htonl( INADDR_ANY );
 
-                       if( memcmp ( &localhost.sin_addr,
-                               &((struct sockaddr_in *)&sa)->sin_addr,
-                               sizeof(localhost.sin_addr) ) == 0 )
+                       if( memcmp ( &((struct sockaddr_in *)sa)->sin_addr,
+                               &localhost, sizeof(localhost) ) == 0 )
                        {
                                return LDAP_STRDUP( ldap_int_hostname );
                        }
 
 #ifdef INADDR_LOOPBACK
-                       localhost.sin_addr.s_addr = htonl( INADDR_LOOPBACK );
+                       localhost.s_addr = htonl( INADDR_LOOPBACK );
 
-                       if( memcmp ( &localhost.sin_addr,
-                               &((struct sockaddr_in *)&sa)->sin_addr,
-                               sizeof(localhost.sin_addr) ) == 0 )
+                       if( memcmp ( &((struct sockaddr_in *)sa)->sin_addr,
+                               &localhost, sizeof(localhost) ) == 0 )
                        {
                                return LDAP_STRDUP( ldap_int_hostname );
                        }
@@ -535,17 +585,21 @@ ldap_host_connected_to( Sockbuf *sb )
                break;
        }
 
-       host = NULL;
-       if ((ldap_pvt_gethostbyaddr_a( addr, len,
-               sa.sa_family, &he_buf, &ha_buf,
-               &hp,&local_h_errno ) == 0 ) &&
-               (hp != NULL) && ( hp->h_name != NULL ) )
+#if 0
        {
-               host = LDAP_STRDUP( hp->h_name );   
+               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
 
-       LDAP_FREE( ha_buf );
-       return host;
+       return host ? LDAP_STRDUP( host ) : NULL;
 }
 #endif
 
@@ -676,7 +730,11 @@ ldap_int_select( LDAP *ld, struct timeval *timeout )
 {
        struct selectinfo       *sip;
 
+#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();