-static int ber_realloc LDAP_P(( BerElement *ber, unsigned long len ));
-static int ber_filbuf LDAP_P(( Sockbuf *sb, long len ));
-static long BerRead LDAP_P(( Sockbuf *sb, char *buf, long len ));
-#ifdef PCNFS
-static int BerWrite LDAP_P(( Sockbuf *sb, char *buf, long len ));
-#endif /* PCNFS */
-
-#define bergetc( sb, len ) ( sb->sb_ber.ber_end > sb->sb_ber.ber_ptr ? \
- (unsigned char)*sb->sb_ber.ber_ptr++ : \
- ber_filbuf( sb, len ))
-
-#ifdef MACOS
-/*
- * MacTCP/OpenTransport
- */
-#define read( s, b, l ) tcpread( s, 0, (unsigned char *)b, l, NULL )
-#define MAX_WRITE 65535
-#define BerWrite( sb, b, l ) tcpwrite( sb->sb_sd, (unsigned char *)(b), (l<MAX_WRITE)? l : MAX_WRITE )
-#else /* MACOS */
-#ifdef DOS
-#ifdef PCNFS
-/*
- * PCNFS (under DOS)
- */
-#define read( s, b, l ) recv( s, b, l, 0 )
-#define BerWrite( s, b, l ) send( s->sb_sd, b, (int) l, 0 )
-#endif /* PCNFS */
-#ifdef NCSA
-/*
- * NCSA Telnet TCP/IP stack (under DOS)
- */
-#define read( s, b, l ) nread( s, b, l )
-#define BerWrite( s, b, l ) netwrite( s->sb_sd, b, l )
-#endif /* NCSA */
-#ifdef WINSOCK
-/*
- * Windows Socket API (under DOS/Windows 3.x)
- */
-#define read( s, b, l ) recv( s, b, l, 0 )
-#define BerWrite( s, b, l ) send( s->sb_sd, b, l, 0 )
-#endif /* WINSOCK */
-#else /* DOS */
-#ifdef _WIN32
-/*
- * 32-bit Windows Socket API (under Windows NT or Windows 95)
- */
-#define read( s, b, l ) recv( s, b, l, 0 )
-#define BerWrite( s, b, l ) send( s->sb_sd, b, l, 0 )
-#else /* _WIN32 */
-#ifdef VMS
-/*
- * VMS -- each write must be 64K or smaller
- */
-#define MAX_WRITE 65535
-#define BerWrite( sb, b, l ) write( sb->sb_sd, b, (l<MAX_WRITE)? l : MAX_WRITE)
-#else /* VMS */
-/*
- * everything else (Unix/BSD 4.3 socket API)
- */
-#define BerWrite( sb, b, l ) write( sb->sb_sd, b, l )
-#endif /* VMS */
-#define udp_read( sb, b, l, al ) recvfrom(sb->sb_sd, (char *)b, l, 0, \
- (struct sockaddr *)sb->sb_fromaddr, \
- (al = sizeof(struct sockaddr), &al))
-#define udp_write( sb, b, l ) sendto(sb->sb_sd, (char *)(b), l, 0, \
- (struct sockaddr *)sb->sb_useaddr, sizeof(struct sockaddr))
-#endif /* _WIN32 */
-#endif /* DOS */
-#endif /* MACOS */
-
-#ifndef udp_read
-#define udp_read( sb, b, l, al ) CLDAP NOT SUPPORTED
-#define udp_write( sb, b, l ) CLDAP NOT SUPPORTED
-#endif /* udp_read */