1 /* sockbuf.c - i/o routines with support for adding i/o layers. */
3 * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
14 #include <ac/socket.h>
15 #include <ac/string.h>
16 #include <ac/unistd.h>
20 #endif /* HAVE_IO_H */
22 #if defined( HAVE_SYS_FILIO_H )
23 #include <sys/filio.h>
24 #elif defined( HAVE_SYS_IOCTL_H )
25 #include <sys/ioctl.h>
31 #undef TEST_PARTIAL_READ
32 #undef TEST_PARTIAL_WRITE
35 #define MAX_BUF_SIZE 65535
36 #define MIN_BUF_SIZE 4096
38 #define sockbuf_io_write( sb, buf, len ) \
39 ((sb)->sb_io->sbi_write( (sb), (buf), (len) ))
41 #define sockbuf_io_read( sb, buf, len ) \
42 ((sb)->sb_io->sbi_read( (sb), (buf), (len) ))
44 static long have_no_read( Sockbuf *sb, void *buf, long len );
45 static long have_no_write( Sockbuf *sb, void *buf, long len );
46 static int have_no_close( Sockbuf *sb );
48 static Sockbuf_IO sb_IO_None=
51 NULL, /* sbi_release */
52 have_no_read, /* sbi_read */
53 have_no_write, /* sbi_write */
54 have_no_close /* sbi_close */
58 update_status( Sockbuf *sb )
61 assert( SOCKBUF_VALID( sb ) );
63 sb->sb_buf_ready = (sb->sb_buf.buf_ptr < sb->sb_buf.buf_end);
65 sb->sb_sec_ready = ((sb->sb_sec_buf_in.buf_end!=0) &&
66 (sb->sb_sec_buf_in.buf_ptr >=
67 sb->sb_sec_buf_in.buf_end));
73 status_is_ok( Sockbuf *sb )
81 assert( SOCKBUF_VALID( sb ) );
83 obr = sb->sb_buf_ready;
85 osr = sb->sb_sec_ready;
89 if (obr!=sb->sb_buf_ready)
93 if (osr!=sb->sb_sec_ready)
103 packet_length( char *buf )
107 assert( buf != NULL );
109 size = (((unsigned long)buf[0])<<24)|
110 (((unsigned long)buf[1])<<16)|
111 (((unsigned long)buf[2])<<8)|
112 (((unsigned long)buf[3]));
114 if ((size<0) || (size>MAX_BUF_SIZE)) {
115 /* somebody is trying to mess me up. */
116 lber_log_printf( LDAP_DEBUG_SASL, sb->sb_debug,
117 "SASL: received packet length of %d bytes\n",
119 size = 16; /* this should lead to an error. */
122 return size + 4; /* include the size !!! */
127 grow_buffer( Sockbuf_Buf * buf, long minsize )
131 assert( buf != NULL );
133 for( pw=MIN_BUF_SIZE; pw<minsize; pw<<=1 ) {
134 if (pw > MAX_BUF_SIZE) {
135 /* this could mean that somebody is trying to crash us. */
141 if (buf->buf_size<minsize) {
142 if ((buf->buf_base==NULL) || ((buf->buf_end==0) && (buf->buf_ptr==0))) {
144 if (buf->buf_base!=NULL)
145 free( buf->buf_base );
146 assert( buf->buf_ptr==0 );
147 assert( buf->buf_end==0 );
148 buf->buf_base = malloc( minsize );
149 if (buf->buf_base==NULL)
153 nb = realloc( buf->buf_base, minsize );
158 buf->buf_size = minsize;
165 sockbuf_sec_release( Sockbuf *sb, char *buf, long len )
167 /* when this is called:
168 * sb->sb_sec_buf_in.buf_base points to a packet.
169 * sb->sb_sec_buf_in.buf_ptr contains the total bytes read.
170 * sb->sb_sec_end.buf_end contains the packet length.
172 * sb->sb_buf.buf_ptr == sb->sb_buf.buf_end == 0;
180 assert( buf != NULL );
181 assert( sb != NULL );
182 assert( SOCKBUF_VALID( sb ) );
184 assert( sb->sb_sec );
185 assert( sb->sb_sec->sbs_release );
186 assert( sb->sb_sec_buf_in.sb_ptr >= sb->sb_sec_buf_in.sb_end );
188 assert( sb->sb_buf.sb_ptr == 0 );
189 assert( sb->sb_buf.sb_end == 0 );
191 assert( status_is_ok(sb) );
195 ptr = sb->sb_sec_buf_in.buf_base;
196 end = ptr+ sb->sb_sec_buf_in.buf_ptr;
197 size = sb->sb_sec_buf_in.buf_end;
199 sb->sb_sec_ready = 1;
201 for(;(ptr+size<=end);) {
203 rlen = sb->sb_sec->sbs_release( sb, ptr, size,
206 sb->sb_buf.buf_size );
208 /* this means a security violation. */
209 return total; /* total ? total : 0 */
212 /* this means that the buffer isn't big enough. */
213 if (grow_buffer( &(sb->sb_buf), -rlen )<0)
214 /* memory violation. */
215 return total; /* total ? total : 0 */
223 /* move to the next packet... */
227 size = packet_length( ptr );
228 /* size is always at least 4, so the loop condition is always OK !!*/
235 sb->sb_buf_ready = (sb->sb_buf.buf_end = rlen - len) ? 1 : 0;
241 sb->sb_sec_ready = 0;
242 /* clean up the mess. */
244 /* copy back to beginning of buffer. */
245 SAFEMEMCPY( sb->sb_sec_buf_in.buf_base, ptr, end-ptr );
246 sb->sb_sec_buf_in.buf_ptr = 0;
247 sb->sb_sec_buf_in.buf_end -= (ptr - sb->sb_sec_buf_in.buf_base);
249 assert( status_is_ok(sb) );
254 sockbuf_sec_protect( Sockbuf *sb, char *buf, long len )
260 assert( buf != NULL );
262 assert( sb != NULL );
263 assert( SOCKBUF_VALID( sb ) );
265 assert( sb->sb_sec_out.buf_end == 0 );
266 assert( sb->sb_sec_out.buf_ptr == 0 );
268 assert( sb->sb_sec );
269 assert( sb->sb_sec->sbs_protect );
271 assert( status_is_ok(sb) );
277 ret = sb->sb_sec->sbs_protect( sb, buf, &blen,
278 sb->sb_sec_out.buf_base+
279 sb->sb_sec_out.buf_end,
280 sb->sb_sec_out.buf_size -
281 sb->sb_sec_out.buf_end );
283 /* protection error ? */
286 if (grow_buffer( &(sb->sb_sec_out),-ret-sb->sb_sec_out.buf_end )<0)
291 /* else if (ret>0) */
294 sb->sb_sec_out.buf_end += ret;
298 assert( status_is_ok(sb) );
304 sockbuf_copy_out( Sockbuf *sb, char **buf, long len )
306 long blen = (sb->sb_buf.buf_end - sb->sb_buf.buf_ptr );
308 assert( buf != NULL );
310 assert( sb != NULL );
311 assert( SOCKBUF_VALID( sb ) );
312 assert( status_is_ok(sb) );
315 long rlen = (blen<len) ? blen : len;
316 memcpy( *buf, sb->sb_buf.buf_base + sb->sb_buf.buf_ptr, rlen );
317 sb->sb_buf.buf_ptr+=rlen;
320 if (sb->sb_buf.buf_ptr >= sb->sb_buf.buf_end) {
321 sb->sb_buf.buf_ptr = sb->sb_buf.buf_end = 0;
322 sb->sb_buf_ready = 0;
324 sb->sb_buf_ready = 1;
327 assert( status_is_ok(sb) );
331 Sockbuf *ber_sockbuf_alloc( void )
333 Sockbuf *sb = calloc(1, sizeof(Sockbuf));
335 if( sb == NULL ) return NULL;
337 ber_pvt_sb_init( sb );
341 Sockbuf *ber_sockbuf_alloc_fd( int fd )
343 Sockbuf *sb = ber_sockbuf_alloc();
345 if( sb == NULL ) return NULL;
347 ber_pvt_sb_set_desc( sb, fd );
348 ber_pvt_sb_set_io( sb, &ber_pvt_sb_io_tcp, NULL );
352 void ber_sockbuf_free( Sockbuf *sb )
355 assert( SOCKBUF_VALID( sb ) );
356 ber_pvt_sb_destroy( sb );
361 ber_pvt_sb_read( Sockbuf *sb, void *buf_arg, long len )
366 assert( buf_arg != NULL );
367 assert( sb != NULL );
368 assert( SOCKBUF_VALID( sb ) );
369 assert( status_is_ok(sb) );
371 /* breaks slapd :-< */
372 assert( ber_pvt_sb_in_use( sb ) );
375 #ifdef TEST_PARTIAL_READ
376 if ((rand() & 3)==1) { /* 1 out of 4 */
382 len = (rand() % len)+1;
385 buf = (char *) buf_arg;
387 if (sb->sb_buf.buf_ptr!=sb->sb_buf.buf_end) {
388 len = sockbuf_copy_out( sb, &buf, len );
390 return (buf - (char *) buf_arg);
397 assert( sb->sb_sec->sbs_release );
398 assert( sb->sb_sec_buf_in.buf_base );
399 if (sb->sb_read_ahead) {
400 max = sb->sb_sec_buf_in.buf_size - sb->sb_sec_buf_in.buf_ptr;
402 max = sb->sb_sec_buf_in.buf_end - sb->sb_sec_buf_in.buf_ptr;
404 /* special situation. This means that we need to read the first
405 * four bytes for the packet length.
411 /* read from stream into sb_sec_buf_in */
413 ret = sockbuf_io_read( sb, sb->sb_sec_buf_in.buf_base +
414 sb->sb_sec_buf_in.buf_ptr, max );
416 if ((ret<0) && (errno==EINTR))
422 /* read error. return */
425 sb->sb_sec_buf_in.buf_ptr += ret;
427 if (sb->sb_sec_buf_in.buf_ptr < sb->sb_sec_buf_in.buf_end) {
428 /* did not finish a packet. give up. */
432 if (sb->sb_sec_buf_in.buf_end == 0) {
433 /* Were trying to read the first four bytes... */
434 if (sb->sb_sec_buf_in.buf_ptr < 4) {
435 /* did not read enough for packet length. give up. */
438 /* calculate the packet length. */
439 sb->sb_sec_buf_in.buf_end =
440 packet_length(sb->sb_sec_buf_in.buf_base );
441 if ((sb->sb_sec_buf_in.buf_end > sb->sb_sec_buf_in.buf_size) &&
442 (grow_buffer( &(sb->sb_sec_buf_in), sb->sb_sec_buf_in.buf_end)<0)) {
443 /* buffer has to be to big. exit with error. */
447 if (sb->sb_sec_buf_in.buf_ptr >= sb_sec_buf_in.buf_end) {
448 /* finished packet. decode it. */
451 /* did not finish packet yet. try again ? */
452 if (sb->sb_read_ahead) {
453 /* we were trying to read the max anyway. forget it */
458 /* we read enough for at least 1 packet */
459 ret = sockbuf_sec_release( sb, buf, len );
461 /* something went wrong... */
466 /* we are finished !!! */
467 if ((len==0) || (ret!=max))
472 if (sb->sb_read_ahead) {
474 max = sb->sb_buf.buf_size - sb->sb_buf.buf_end;
477 ret = sockbuf_io_read( sb,
478 sb->sb_buf.buf_base +
482 if ((ret<0) && (errno==EINTR))
488 /* some error occured */
491 sb->sb_buf.buf_end += ret;
492 /* move out the data... */
493 len = sockbuf_copy_out( sb, &buf, len );
497 /* no read_ahead, just try to put the data in the buf. */
499 ret = sockbuf_io_read( sb, buf, len );
501 if ((ret<0) && (errno==EINTR))
510 /* we might as well return, since there is nothing to do... */
515 assert( status_is_ok(sb) );
516 if ((ret<=0) && (buf==buf_arg)) {
517 /* there was an error. */
520 return (buf - ((char *) buf_arg));
524 long sockbuf_do_write( Sockbuf *sb )
528 assert( sb != NULL );
529 assert( SOCKBUF_VALID( sb ) );
531 to_go = sb->sb_sec_out.buf_end - sb->sb_sec_out.buf_ptr;
533 /* there is something left of the last time... */
535 ret = sockbuf_io_write( sb, sb->sb_sec_out.buf_base+
536 sb->sb_sec_out.buf_ptr, to_go );
538 if ((ret<0) && (errno==EINTR))
543 if (ret<=0) /* error */
545 sb->sb_sec_out.buf_ptr += ret;
546 if (ret<to_go) /* not enough data, so pretend no data was sent. */
552 long ber_pvt_sb_write( Sockbuf *sb, void *buf, long len_arg )
557 assert( buf != NULL );
558 assert( sb != NULL );
559 assert( SOCKBUF_VALID( sb ) );
560 assert( status_is_ok(sb) );
562 /* unfortunately breaks slapd */
563 assert( ber_pvt_sb_in_use( sb ) );
565 #ifdef TEST_PARTIAL_WRITE
566 if ((rand() & 3)==1) { /* 1 out of 4 */
571 len_arg = (rand() % len_arg)+1;
577 assert( sb->sb_sec_prev_len <= len );
578 if (sb->sb_sec_prev_len) {
579 ret = sockbuf_do_write( sb );
583 len -= sb->sb_sec_prev_len;
584 sb->sb_sec_prev_len = 0;
585 sb->sb_sec_out.buf_end = sb->sb_sec_out.buf_ptr = 0;
587 /* now protect the next packet. */
588 ret = sockbuf_sec_protect( sb, buf, len );
591 ret = sockbuf_do_write( sb );
593 sb->sb_sec_prev_len = len;
600 ret = sockbuf_io_write( sb, buf, len );
602 if ((ret<0) && (errno==EINTR))
614 int ber_pvt_sb_close( Sockbuf *sb )
618 assert( sb != NULL );
619 assert( SOCKBUF_VALID( sb ) );
621 assert( sb->sb_io->sbi_close );
622 assert( status_is_ok(sb) );
623 assert( ber_pvt_sb_in_use( sb ) );
625 ret = sb->sb_io->sbi_close( sb );
626 ber_pvt_sb_set_desc( sb, -1 );
631 int ber_pvt_sb_set_readahead( Sockbuf *sb, int rh )
633 assert( sb != NULL );
634 assert( SOCKBUF_VALID( sb ) );
635 assert( status_is_ok(sb) );
636 sb->sb_read_ahead = (rh!=0);
642 int ber_pvt_sb_set_nonblock( Sockbuf *sb, int nb )
644 assert( sb != NULL );
645 assert( SOCKBUF_VALID( sb ) );
646 assert( status_is_ok(sb) );
648 sb->sb_non_block = 1;
650 sb->sb_read_ahead = 1;
653 sb->sb_non_block = 0;
655 sb->sb_read_ahead = 0;
658 if (ber_pvt_sb_in_use(sb)) {
660 int flags = fcntl(ber_pvt_sb_get_desc(sb), F_GETFL);
662 return fcntl(ber_pvt_sb_get_desc(sb), F_SETFL, flags);
664 #elif defined( FIONBIO )
665 /* WINSOCK requires the status to be a long */
666 ioctl_t status = (nb!=0);
667 return ioctl( ber_pvt_sb_get_desc(sb), FIONBIO, &status );
674 #define sockbuf_buf_init( bb ) do { \
675 Sockbuf_Buf *sbb = (bb); \
676 sbb->buf_base = NULL; \
683 sockbuf_buf_destroy( Sockbuf_Buf *buf )
685 assert( buf != NULL);
688 free( buf->buf_base );
689 sockbuf_buf_init( buf );
693 int ber_pvt_sb_init( Sockbuf *sb )
697 sb->sb_valid=LBER_VALID_SOCKBUF;
700 sb->sb_trans_ready = 0;
701 sb->sb_buf_ready = 0;
703 sb->sb_sec_ready = 0;
705 sb->sb_read_ahead = 0;
706 sb->sb_non_block = 0;
708 sb->sb_iodata = NULL;
709 sb->sb_io = &sb_IO_None;
712 sb->sb_max_incoming = 0;
714 sockbuf_buf_init( &(sb->sb_buf) );
716 sockbuf_buf_init( &(sb->sb_sec_buf_in) );
717 sockbuf_buf_init( &(sb->sb_sec_buf_out) );
720 sb->sb_sec_prev_len = 0;
723 assert( SOCKBUF_VALID( sb ) );
727 int ber_pvt_sb_destroy( Sockbuf *sb )
730 assert( SOCKBUF_VALID(sb) );
732 ber_pvt_sb_clear_sec(sb);
733 sockbuf_buf_destroy( &(sb->sb_sec_buf_in) );
734 sockbuf_buf_destroy( &(sb->sb_sec_buf_out) );
736 ber_pvt_sb_clear_io(sb);
737 sockbuf_buf_destroy( &(sb->sb_buf) );
738 return ber_pvt_sb_init( sb );
742 int ber_pvt_sb_set_sec( Sockbuf *sb, Sockbuf_Sec * sec, void *arg )
746 assert( SOCKBUF_VALID( *sb ) );
747 if ((sb->sb_sec) || (sec==NULL))
752 if ((sec->sbs_setup) && (sec->sbs_setup( sb, arg)<0)) {
756 len = sb->sb_buf.buf_end - sb->sb_buf.buf_ptr;
759 /* move this to the security layer. */
760 if (grow_buffer( &(sb->sb_sec_buf_in), len )<0)
762 memcpy( sb->sb_sec_buf_in.buf_base,
763 sb->sb_buf.buf_base + sb->sb_buf.buf_ptr, len );
764 sb->sb_sec_buf_in.buf_ptr = len;
765 sb->sb_sec_buf_in.buf_end = (len>4) ? packet_length( sb->sb_sec_buf_in ) : 0;
766 sb->sb_buf.buf_ptr = sb->sb_buf.buf_end = 0;
772 int ber_pvt_sb_clear_sec( Sockbuf *sb )
775 assert( SOCKBUF_VALID( sb ) );
777 if (sb->sb_buf.buf_ptr!=0)
779 if (sb->sb_sec==NULL)
781 if ((sb->sb_sec->sbs_remove) && (sb->sb_sec->sbs_remove(sb)<0))
785 if (sb->sb_sec_buf_in.buf_ptr!=0) {
786 if (grow_buffer( &(sb->sb_buf),
787 sb->sb_buf.buf_end + sb->sb_sec_buf_in.buf_ptr)<0)
789 memcpy( sb->sb_buf.buf_base + sb->sb_buf.buf_end,
790 sb->sb_sec_buf_in.buf_base, sb->sb_sec_buf_in.buf_ptr );
791 sb->sb_buf.buf_end += sb->sb_sec_buf_in.buf_ptr;
792 sb->sb_buf_ready = 1;
794 sockbuf_buf_destroy( &(sb->sb_sec_buf_in) );
795 assert( sb->sb_sec_buf.buf_end==0 );
796 sockbuf_buf_destroy( &(sb->sb_sec_buf_out) );
798 sb->sb_sec_ready = 0;
804 int ber_pvt_sb_set_io( Sockbuf *sb, Sockbuf_IO *trans, void *arg )
807 assert( SOCKBUF_VALID( sb ) );
808 assert( sb->sb_io == &sb_IO_None );
815 if ((trans->sbi_setup) && (trans->sbi_setup( sb, arg)<0))
821 int ber_pvt_sb_clear_io( Sockbuf *sb )
824 assert( SOCKBUF_VALID( sb ) );
826 if (sb->sb_io==&sb_IO_None)
829 if ((sb->sb_io->sbi_remove) && (sb->sb_io->sbi_remove( sb )<0))
832 sb->sb_io = &sb_IO_None;
834 sb->sb_trans_ready = 0;
844 stream_read( Sockbuf *sb, void *buf, long len )
847 assert( SOCKBUF_VALID( sb ) );
851 * MacTCP/OpenTransport
853 return tcpread( ber_pvt_sb_get_desc(sb), 0, (unsigned char *)buf,
856 #elif defined( HAVE_PCNFS ) || \
857 defined( HAVE_WINSOCK ) || defined ( __BEOS__ )
862 * Windows Socket API (under DOS/Windows 3.x)
865 * 32-bit Windows Socket API (under Windows NT or Windows 95)
869 rc = recv( ber_pvt_sb_get_desc(sb), buf, len, 0 );
871 if ( rc < 0 ) errno = WSAGetLastError();
875 #elif defined( HAVE_NCSA )
877 * NCSA Telnet TCP/IP stack (under DOS)
879 return nread( ber_pvt_sb_get_desc(sb), buf, len );
882 return read( ber_pvt_sb_get_desc(sb), buf, len );
887 stream_write( Sockbuf *sb, void *buf, long len )
890 assert( SOCKBUF_VALID( sb ) );
894 * MacTCP/OpenTransport
896 #define MAX_WRITE 65535
897 return tcpwrite( ber_pvt_sb_get_desc(sb),
898 (unsigned char *)(buf),
899 (len<MAX_WRITE)? len : MAX_WRITE );
901 #elif defined( HAVE_PCNFS) \
902 || defined( HAVE_WINSOCK) || defined ( __BEOS__ )
907 * Windows Socket API (under DOS/Windows 3.x)
910 * 32-bit Windows Socket API (under Windows NT or Windows 95)
915 rc = send( ber_pvt_sb_get_desc(sb), buf, len, 0 );
917 if ( rc < 0 ) errno = WSAGetLastError();
922 #elif defined(HAVE_NCSA)
923 return netwrite( ber_pvt_sb_get_desc(sb), buf, len );
927 * VMS -- each write must be 64K or smaller
929 #define MAX_WRITE 65535
930 return write( ber_pvt_sb_get_desc(sb), buf,
931 (len<MAX_WRITE)? len : MAX_WRITE);
933 return write( ber_pvt_sb_get_desc(sb), buf, len );
938 stream_close( Sockbuf *sb )
941 assert( SOCKBUF_VALID( sb ) );
942 tcp_close( ber_pvt_sb_get_desc( sb ) );
946 Sockbuf_IO ber_pvt_sb_io_tcp=
948 NULL, /* sbi_setup */
949 NULL, /* sbi_release */
950 stream_read, /* sbi_read */
951 stream_write, /* sbi_write */
952 stream_close, /* sbi_close */
956 * Support for UDP (CLDAP)
966 dgram_setup( Sockbuf *sb, void *arg )
969 assert( SOCKBUF_VALID( sb ) );
971 sb->sb_iodata = malloc( sizeof( struct dgram_data ) );
972 if (sb->sb_iodata==NULL)
974 sb->sb_read_ahead = 1; /* important since udp is packet based. */
979 dgram_release( Sockbuf *sb )
982 assert( SOCKBUF_VALID( sb ) );
984 free( sb->sb_iodata );
989 dgram_read( Sockbuf *sb, void *buf, long len )
991 #ifdef LDAP_CONNECTIONLESS
994 struct dgram_data *dd;
996 assert( sb != NULL );
997 assert( SOCKBUF_VALID( sb ) );
998 assert( buf != NULL );
1000 dd = (struct dgram_data *)(sb->sb_iodata);
1002 addrlen = sizeof( struct sockaddr );
1003 rc=recvfrom( ber_pvt_sb_get_desc(sb), buf, len, 0, &(dd->src), &addrlen );
1005 if ( sb->sb_debug ) {
1006 ber_log_printf( LDAP_DEBUG_ANY, sb->sb_debug,
1007 "dgram_read udp_read %d bytes\n",
1010 ber_log_bprint( LDAP_DEBUG_PACKETS, sb->sb_debug,
1014 # else /* LDAP_CONNECTIONLESS */
1016 # endif /* LDAP_CONNECTIONLESS */
1020 dgram_write( Sockbuf *sb, void *buf, long len )
1022 #ifdef LDAP_CONNECTIONLESS
1024 struct dgram_data *dd;
1026 assert( sb != NULL );
1027 assert( SOCKBUF_VALID( sb ) );
1028 assert( buf != NULL );
1030 dd = (struct dgram_data *)(sb->sb_iodata);
1032 rc=sendto( ber_pvt_sb_get_desc(sb), buf, len, 0, &(dd->dst),
1033 sizeof( struct sockaddr ) );
1038 /* fake error if write was not atomic */
1052 dgram_close( Sockbuf *sb )
1054 assert( sb != NULL );
1055 assert( SOCKBUF_VALID( sb ) );
1057 tcp_close( ber_pvt_sb_get_desc(sb) );
1061 Sockbuf_IO ber_pvt_sb_io_udp=
1063 dgram_setup, /* sbi_setup */
1064 dgram_release, /* sbi_release */
1065 dgram_read, /* sbi_read */
1066 dgram_write, /* sbi_write */
1067 dgram_close, /* sbi_close */
1070 int ber_pvt_sb_udp_set_dst(Sockbuf *sb, void *addr )
1072 struct dgram_data *dd;
1073 assert( sb != NULL );
1074 assert( SOCKBUF_VALID( sb ) );
1075 assert( sb->sb_io == &ber_pvt_sb_io_udp );
1076 dd = (struct dgram_data *) (sb->sb_iodata);
1077 memcpy( &(dd->dst), addr, sizeof( struct sockaddr ) );
1081 void *ber_pvt_sb_udp_get_src( Sockbuf *sb )
1083 struct dgram_data *dd;
1085 assert( sb != NULL );
1086 assert( SOCKBUF_VALID( sb ) );
1087 assert( sb->sb_io == &ber_pvt_sb_io_udp );
1088 dd = (struct dgram_data *) (sb->sb_iodata);
1096 * These routines should really call abort, but at the moment that would
1097 * break the servers.
1101 have_no_read( Sockbuf *sb, void *buf, long len )
1103 assert( sb != NULL );
1104 assert( SOCKBUF_VALID( sb ) );
1106 ber_log_printf( LDAP_DEBUG_ANY, ber_int_debug,
1107 "warning: reading from uninitialized sockbuf\n");
1113 have_no_write( Sockbuf *sb, void *buf, long len )
1115 assert( sb != NULL );
1116 assert( SOCKBUF_VALID( sb ) );
1118 ber_log_printf( LDAP_DEBUG_ANY, ber_int_debug,
1119 "warning: writing to uninitialized sockbuf\n");
1125 have_no_close( Sockbuf *sb )
1127 assert( sb != NULL );
1128 assert( SOCKBUF_VALID( sb ) );