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/* ========================================================================
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* Copyright 1988-2006 University of Washington
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* ========================================================================
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* Program: TOPS-20 TCP/IP routines
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* Author: Mark Crispin
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* Networks and Distributed Computing
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* Computing & Communications
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* University of Washington
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* Administration Building, AG-44
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* Internet: MRC@CAC.Washington.EDU
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* Last Edited: 30 August 2006
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* This file is dedicated with affection to the TOPS-20 operating system, which
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* set standards for user and programmer friendliness that have still not been
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* equaled by more `modern' operating systems.
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/* TCP/IP manipulate parameters
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* Accepts: function code
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* function-dependent value
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* Returns: function-dependent return value
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void *tcp_parameters (long function,void *value)
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* contact service name
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* Returns: TCP stream if success else NIL
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TCPSTREAM *tcp_open (char *host,char *service,unsigned long port)
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char *s,tmp[MAILTMPLEN];
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TCPSTREAM *stream = NIL;
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unsigned long i,j,k,l;
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char file[MAILTMPLEN];
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port &= 0xffff; /* erase flags */
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if (host[0] == '[' && host[strlen (host)-1] == ']') {
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if (((i = strtoul (s = host+1,&s,10)) <= 255) && *s++ == '.' &&
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((j = strtoul (s,&s,10)) <= 255) && *s++ == '.' &&
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((k = strtoul (s,&s,10)) <= 255) && *s++ == '.' &&
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((l = strtoul (s,&s,10)) <= 255) && *s++ == ']' && !*s) {
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argblk[3] = (i << 24) + (j << 16) + (k << 8) + l;
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sprintf (tmp,"[%lu.%lu.%lu.%lu]",i,j,k,l);
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sprintf (tmp,"Bad format domain-literal: %.80s",host);
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else { /* host name */
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argblk[1] = _GTHPN; /* get IP address and primary name */
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argblk[2] = (int) (host-1); /* pointer to host */
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argblk[4] = (int) (tmp-1);
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if (!jsys (GTHST,argblk)) { /* first try DEC's domain way */
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argblk[1] = _GTHPN; /* get IP address and primary name */
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argblk[2] = (int) (host-1);
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argblk[4] = (int) (tmp-1);
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if (!jsys (GTDOM,argblk)){/* try the CHIVES domain way */
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argblk[1] = _GTHSN; /* failed, do the host table then */
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if (!jsys (GTHST,argblk)) {
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sprintf (tmp,"No such host as %s",host);
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argblk[1] = _GTHNS; /* convert number to string */
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argblk[2] = (int) (tmp-1);
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/* get the official name */
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if (!jsys (GTHST,argblk)) strcpy (tmp,host);
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sprintf (file,"TCP:.%o-%d;PERSIST:30;CONNECTION:ACTIVE",argblk[3],port);
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argblk[1] = GJ_SHT; /* short form GTJFN% */
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argblk[2] = (int) (file-1); /* pointer to file name */
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/* get JFN for TCP: file */
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if (!jsys (GTJFN,argblk)) fatal ("Unable to create TCP JFN");
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jfn = argblk[1]; /* note JFN for later */
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/* want 8-bit bidirectional I/O */
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argblk[2] = OF_RD|OF_WR|(FLD (8,monsym("OF%BSZ")));
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if (!jsys (OPENF,argblk)) {
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sprintf (file,"Can't connect to %s,%d server",tmp,port);
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/* create TCP/IP stream */
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stream = (TCPSTREAM *) fs_get (sizeof (TCPSTREAM));
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stream->host = cpystr (tmp); /* copy official host name */
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argblk[1] = _GTHNS; /* convert number to string */
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argblk[2] = (int) (tmp-1);
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argblk[3] = -1; /* want local host */
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if (!jsys (GTHST,argblk)) strcpy (tmp,"LOCAL");
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stream->localhost = cpystr (tmp);
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stream->port = port; /* save port number */
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stream->jfn = jfn; /* init JFN */
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/* TCP/IP authenticated open
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* Accepts: NETMBX specifier
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* returned user name buffer
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* Returns: TCP/IP stream if success else NIL
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TCPSTREAM *tcp_aopen (NETMBX *mb,char *service,char *usrbuf)
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/* TCP/IP receive line
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* Accepts: TCP/IP stream
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* Returns: text line string or NIL if failure
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char *tcp_getline (TCPSTREAM *stream)
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argblk[1] = stream->jfn; /* read from TCP */
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/* pointer to buffer */
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argblk[2] = (int) (stream->ibuf-1);
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argblk[3] = BUFLEN; /* max number of bytes to read */
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argblk[4] = '\012'; /* terminate on LF */
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if (!jsys (SIN,argblk)) return NIL;
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n = BUFLEN - argblk[3]; /* number of bytes read */
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/* got a complete line? */
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if ((stream->ibuf[n - 2] == '\015') && (stream->ibuf[n - 1] == '\012')) {
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memcpy ((ret = (char *) fs_get (n)),stream->ibuf,n - 2);
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ret[n - 2] = '\0'; /* tie off string with null */
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/* copy partial string */
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memcpy ((stp = ret = (char *) fs_get (n)),stream->ibuf,n);
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/* special case of newline broken by buffer */
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if ((stream->ibuf[n - 1] == '\015') && jsys (BIN,argblk) &&
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(argblk[2] == '\012')) { /* was it? */
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ret[n - 1] = '\0'; /* tie off string with null */
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/* recurse to get remainder */
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else if (jsys (BKJFN,argblk) && (st = tcp_getline (stream))) {
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ret = (char *) fs_get (n + 1 + (m = strlen (st)));
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memcpy (ret,stp,n); /* copy first part */
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memcpy (ret + n,st,m); /* and second part */
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fs_give ((void **) &stp); /* flush first part */
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fs_give ((void **) &st); /* flush second part */
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ret[n + m] = '\0'; /* tie off string with null */
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/* TCP/IP receive buffer
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* Accepts: TCP/IP stream
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* buffer to read into
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* Returns: T if success, NIL otherwise
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long tcp_getbuffer (TCPSTREAM *stream,unsigned long size,char *buffer)
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argblk[1] = stream->jfn; /* read from TCP */
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argblk[2] = (int) (buffer-1); /* pointer to buffer */
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argblk[3] = -size; /* number of bytes to read */
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if (!jsys (SIN,argblk)) return NIL;
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buffer[size] = '\0'; /* tie off text */
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/* TCP/IP send string as record
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* Accepts: TCP/IP stream
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* Returns: T if success else NIL
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long tcp_soutr (TCPSTREAM *stream,char *string)
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argblk[1] = stream->jfn; /* write to TCP */
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argblk[2] = (int) (string-1); /* pointer to buffer */
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argblk[3] = 0; /* write until NUL */
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if (!jsys (SOUTR,argblk)) return NIL;
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/* TCP/IP send string
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* Accepts: TCP/IP stream
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* Returns: T if success else NIL
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long tcp_sout (TCPSTREAM *stream,char *string,unsigned long size)
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argblk[1] = stream->jfn; /* write to TCP */
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argblk[2] = (int) (string-1); /* pointer to buffer */
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argblk[3] = -size; /* write this many bytes */
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if (!jsys (SOUTR,argblk)) return NIL;
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* Accepts: TCP/IP stream
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void tcp_close (TCPSTREAM *stream)
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argblk[1] = stream->jfn; /* close TCP */
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/* flush host names */
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fs_give ((void **) &stream->host);
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fs_give ((void **) &stream->localhost);
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fs_give ((void **) &stream); /* flush the stream */
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/* TCP/IP return host for this stream
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* Accepts: TCP/IP stream
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* Returns: host name for this stream
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char *tcp_host (TCPSTREAM *stream)
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return stream->host; /* return host name */
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/* TCP/IP return remote host for this stream
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* Accepts: TCP/IP stream
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* Returns: host name for this stream
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char *tcp_remotehost (TCPSTREAM *stream)
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return stream->host; /* return host name */
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/* TCP/IP return port for this stream
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* Accepts: TCP/IP stream
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* Returns: port number for this stream
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unsigned long tcp_port (TCPSTREAM *stream)
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return stream->port; /* return port number */
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/* TCP/IP return local host for this stream
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* Accepts: TCP/IP stream
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* Returns: local host name for this stream
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char *tcp_localhost (TCPSTREAM *stream)
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return stream->localhost; /* return local host name */
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/* TCP/IP return canonical form of host name
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* Returns: canonical form of host name
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char *tcp_canonical (char *name)
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static char tmp[MAILTMPLEN];
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/* look like domain literal? */
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if (name[0] == '[' && name[strlen (name) - 1] == ']') return name;
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argblk[1] = _GTHPN; /* get IP address and primary name */
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argblk[2] = (int) (name-1); /* pointer to host */
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argblk[4] = (int) (tmp-1); /* pointer to return destination */
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if (!jsys (GTHST,argblk)) { /* first try DEC's domain way */
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argblk[1] = _GTHPN; /* get IP address and primary name */
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argblk[2] = (int) (name-1);
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argblk[4] = (int) (tmp-1);
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if (!jsys (GTDOM,argblk)) { /* try the CHIVES domain way */
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argblk[1] = _GTHSN; /* failed, do the host table then */
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if (!jsys (GTHST,argblk)) return name;
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argblk[1] = _GTHNS; /* convert number to string */
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argblk[2] = (int) (tmp-1);
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/* get the official name */
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if (!jsys (GTHST,argblk)) return name;
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/* TCP/IP get client host name (server calls only)
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* Returns: client host name
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char *tcp_clienthost ()
added
removed
imap/src/osdep/tops-20/tcp_t20.c
