1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/osdep/vms/tcp_vmsl.c	Mon Sep 14 15:17:45 2009 +0900
     1.3 @@ -0,0 +1,378 @@
     1.4 +/* ========================================================================
     1.5 + * Copyright 1988-2008 University of Washington
     1.6 + *
     1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
     1.8 + * you may not use this file except in compliance with the License.
     1.9 + * You may obtain a copy of the License at
    1.10 + *
    1.11 + *     http://www.apache.org/licenses/LICENSE-2.0
    1.12 + *
    1.13 + * 
    1.14 + * ========================================================================
    1.15 + */
    1.16 +
    1.17 +/*
    1.18 + * Program:	VMS TCP/IP routines for Netlib.
    1.19 + *
    1.20 + * Author:	Mark Crispin
    1.21 + *		Networks and Distributed Computing
    1.22 + *		Computing & Communications
    1.23 + *		University of Washington
    1.24 + *		Administration Building, AG-44
    1.25 + *		Seattle, WA  98195
    1.26 + *		Internet: MRC@CAC.Washington.EDU
    1.27 + *
    1.28 + * Date:	2 August 1994
    1.29 + * Last Edited:	13 January 2008
    1.30 + */
    1.31 +
    1.32 +/* Thanks to Yehavi Bourvine at The Hebrew University of Jerusalem who
    1.33 +   contributed the original VMS code */
    1.34 +
    1.35 +#include <descrip.h>
    1.36 +
    1.37 +static char *tcp_getline_work (TCPSTREAM *stream,unsigned long *size,
    1.38 +			       long *contd);
    1.39 +
    1.40 +/* TCP/IP manipulate parameters
    1.41 + * Accepts: function code
    1.42 + *	    function-dependent value
    1.43 + * Returns: function-dependent return value
    1.44 + */
    1.45 +
    1.46 +void *tcp_parameters (long function,void *value)
    1.47 +{
    1.48 +  return NIL;
    1.49 +}
    1.50 +
    1.51 + 
    1.52 +/* TCP/IP open
    1.53 + * Accepts: host name
    1.54 + *	    contact service name
    1.55 + *	    contact port number
    1.56 + * Returns: TCP/IP stream if success else NIL
    1.57 + */
    1.58 +
    1.59 +TCPSTREAM *tcp_open (char *host,char *service,unsigned long port)
    1.60 +{
    1.61 +  TCPSTREAM *stream = NIL;
    1.62 +  unsigned long sock;
    1.63 +  int status;
    1.64 +  char tmp[MAILTMPLEN];
    1.65 +				/* hostname to connect to */
    1.66 +  struct dsc$descriptor HostDesc = { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, NULL };
    1.67 +  port &= 0xffff;		/* erase flags */
    1.68 +				/* assign a local socket */
    1.69 +  if (!((status = net_assign (&sock)) & 0x1)) {
    1.70 +    sprintf (tmp,"Unable to assign to net, status=%d",status);
    1.71 +    mm_log (tmp,ERROR);
    1.72 +    return NIL;
    1.73 +  }
    1.74 +  if (!((status = net_bind (&sock,1)) & 0x1)) {
    1.75 +    sprintf (tmp,"Unable to create local socket, status=%d",status);
    1.76 +    mm_log (tmp,ERROR);
    1.77 +    return NIL;
    1.78 +  }
    1.79 +				/* open connection */
    1.80 +  HostDesc.dsc$w_length = strlen (host);
    1.81 +  HostDesc.dsc$a_pointer = host;
    1.82 +  if (!((status = tcp_connect (&sock,&HostDesc,port)) & 0x1)) {
    1.83 +    sprintf (tmp,"Can't connect to %.80s,%lu: %s",host,port,strerror (errno));
    1.84 +    mm_log (tmp,ERROR);
    1.85 +    return NIL;
    1.86 +  }
    1.87 +				/* create TCP/IP stream */
    1.88 +  stream = (TCPSTREAM *) fs_get (sizeof (TCPSTREAM));
    1.89 +  stream->host = cpystr (host);	/* copy official host name */
    1.90 +				/* copy local host name */
    1.91 +  stream->localhost = cpystr (mylocalhost ());
    1.92 +  stream->port = port;		/* copy port number */
    1.93 +				/* init sockets */
    1.94 +  stream->tcpsi = stream->tcpso = sock;
    1.95 +  stream->ictr = 0;		/* init input counter */
    1.96 +  return stream;		/* return success */
    1.97 +}
    1.98 +
    1.99 +/* TCP/IP authenticated open
   1.100 + * Accepts: NETMBX specifier
   1.101 + *	    service name
   1.102 + *	    returned user name buffer
   1.103 + * Returns: TCP/IP stream if success else NIL
   1.104 + */
   1.105 +
   1.106 +TCPSTREAM *tcp_aopen (NETMBX *mb,char *service,char *usrbuf)
   1.107 +{
   1.108 +  return NIL;
   1.109 +}
   1.110 +
   1.111 +/* TCP receive line
   1.112 + * Accepts: TCP stream
   1.113 + * Returns: text line string or NIL if failure
   1.114 + */
   1.115 +
   1.116 +char *tcp_getline (TCPSTREAM *stream)
   1.117 +{
   1.118 +  unsigned long n,contd;
   1.119 +  char *ret = tcp_getline_work (stream,&n,&contd);
   1.120 +  if (ret && contd) {		/* got a line needing continuation? */
   1.121 +    STRINGLIST *stl = mail_newstringlist ();
   1.122 +    STRINGLIST *stc = stl;
   1.123 +    do {			/* collect additional lines */
   1.124 +      stc->text.data = (unsigned char *) ret;
   1.125 +      stc->text.size = n;
   1.126 +      stc = stc->next = mail_newstringlist ();
   1.127 +      ret = tcp_getline_work (stream,&n,&contd);
   1.128 +    } while (ret && contd);
   1.129 +    if (ret) {			/* stash final part of line on list */
   1.130 +      stc->text.data = (unsigned char *) ret;
   1.131 +      stc->text.size = n;
   1.132 +				/* determine how large a buffer we need */
   1.133 +      for (n = 0, stc = stl; stc; stc = stc->next) n += stc->text.size;
   1.134 +      ret = fs_get (n + 1);	/* copy parts into buffer */
   1.135 +      for (n = 0, stc = stl; stc; n += stc->text.size, stc = stc->next)
   1.136 +	memcpy (ret + n,stc->text.data,stc->text.size);
   1.137 +      ret[n] = '\0';
   1.138 +    }
   1.139 +    mail_free_stringlist (&stl);/* either way, done with list */
   1.140 +  }
   1.141 +  return ret;
   1.142 +}
   1.143 +
   1.144 +/* TCP receive line or partial line
   1.145 + * Accepts: TCP stream
   1.146 + *	    pointer to return size
   1.147 + *	    pointer to return continuation flag
   1.148 + * Returns: text line string, size and continuation flag, or NIL if failure
   1.149 + */
   1.150 +
   1.151 +static char *tcp_getline_work (TCPSTREAM *stream,unsigned long *size,
   1.152 +			       long *contd)
   1.153 +{
   1.154 +  unsigned long n;
   1.155 +  char *s,*ret,c,d;
   1.156 +  *contd = NIL;			/* assume no continuation */
   1.157 +				/* make sure have data */
   1.158 +  if (!tcp_getdata (stream)) return NIL;
   1.159 +  for (s = stream->iptr, n = 0, c = '\0'; stream->ictr--; n++, c = d) {
   1.160 +    d = *stream->iptr++;	/* slurp another character */
   1.161 +    if ((c == '\015') && (d == '\012')) {
   1.162 +      ret = (char *) fs_get (n--);
   1.163 +      memcpy (ret,s,*size = n);	/* copy into a free storage string */
   1.164 +      ret[n] = '\0';		/* tie off string with null */
   1.165 +      return ret;
   1.166 +    }
   1.167 +  }
   1.168 +				/* copy partial string from buffer */
   1.169 +  memcpy ((ret = (char *) fs_get (n)),s,*size = n);
   1.170 +				/* get more data from the net */
   1.171 +  if (!tcp_getdata (stream)) fs_give ((void **) &ret);
   1.172 +				/* special case of newline broken by buffer */
   1.173 +  else if ((c == '\015') && (*stream->iptr == '\012')) {
   1.174 +    stream->iptr++;		/* eat the line feed */
   1.175 +    stream->ictr--;
   1.176 +    ret[*size = --n] = '\0';	/* tie off string with null */
   1.177 +  }
   1.178 +  else *contd = LONGT;		/* continuation needed */
   1.179 +  return ret;
   1.180 +}
   1.181 +
   1.182 +/* TCP/IP receive buffer
   1.183 + * Accepts: TCP/IP stream
   1.184 + *	    size in bytes
   1.185 + *	    buffer to read into
   1.186 + * Returns: T if success, NIL otherwise
   1.187 + */
   1.188 +
   1.189 +long tcp_getbuffer (TCPSTREAM *stream,unsigned long size,char *buffer)
   1.190 +{
   1.191 +  unsigned long n;
   1.192 +  char *bufptr = buffer;
   1.193 +  while (size > 0) {		/* until request satisfied */
   1.194 +    if (!tcp_getdata (stream)) return NIL;
   1.195 +    n = min (size,stream->ictr);/* number of bytes to transfer */
   1.196 +				/* do the copy */
   1.197 +    memcpy (bufptr,stream->iptr,n);
   1.198 +    bufptr += n;		/* update pointer */
   1.199 +    stream->iptr +=n;
   1.200 +    size -= n;			/* update # of bytes to do */
   1.201 +    stream->ictr -=n;
   1.202 +  }
   1.203 +  bufptr[0] = '\0';		/* tie off string */
   1.204 +  return T;
   1.205 +}
   1.206 +
   1.207 +
   1.208 +/* TCP/IP receive data
   1.209 + * Accepts: TCP/IP stream
   1.210 + * Returns: T if success, NIL otherwise
   1.211 + */
   1.212 +
   1.213 +long tcp_getdata (TCPSTREAM *stream)
   1.214 +{
   1.215 +  char tmp[MAILTMPLEN];
   1.216 +  int i,status;
   1.217 +  /* Note: the doc says we need here dynamic descriptor, but we need static
   1.218 +   * one... */
   1.219 +  struct dsc$descriptor BufDesc = {BUFLEN,DSC$K_DTYPE_T,DSC$K_CLASS_S,
   1.220 +				     stream->ibuf};
   1.221 +  static short iosb[4];
   1.222 +  if (stream->tcpsi < 0) return NIL;
   1.223 +  while (stream->ictr < 1) {	/* if nothing in the buffer */
   1.224 +    if (!((status = tcp_receive(&(stream->tcpsi), &BufDesc, iosb)) & 0x1)) {
   1.225 +      sprintf (tmp,"Error reading from TcpIp/NETLIB, status=%d",status);
   1.226 +      mm_log (tmp,ERROR);
   1.227 +      return tcp_abort (stream);
   1.228 +    }
   1.229 +    if (iosb[1] > BUFLEN) i = BUFLEN;
   1.230 +    else i = iosb[1];
   1.231 +    if (i < 1) return tcp_abort (stream);
   1.232 +    stream->ictr = i;		/* set new byte count */
   1.233 +    stream->iptr = stream->ibuf;/* point at TCP buffer */
   1.234 +  }
   1.235 +  return T;
   1.236 +}
   1.237 +
   1.238 +/* TCP/IP send string as record
   1.239 + * Accepts: TCP/IP stream
   1.240 + *	    string pointer
   1.241 + * Returns: T if success else NIL
   1.242 + */
   1.243 +
   1.244 +long tcp_soutr (TCPSTREAM *stream,char *string)
   1.245 +{
   1.246 +  return tcp_sout (stream,string,(unsigned long) strlen (string));
   1.247 +}
   1.248 +
   1.249 +
   1.250 +/* TCP/IP send string
   1.251 + * Accepts: TCP/IP stream
   1.252 + *	    string pointer
   1.253 + *	    byte count
   1.254 + * Returns: T if success else NIL
   1.255 + */
   1.256 +
   1.257 +long tcp_sout (TCPSTREAM *stream,char *string,unsigned long size)
   1.258 +{
   1.259 +  int status;
   1.260 +  struct dsc$descriptor_s BufDesc = {strlen(string),DSC$K_DTYPE_T,
   1.261 +				       DSC$K_CLASS_S,string };
   1.262 +				/* 2 = Do not add \r\n */
   1.263 +  return ((status = tcp_send (&(stream->tcpso),&BufDesc,2)) & 0x1) ? T :
   1.264 +    tcp_abort (stream);
   1.265 +}
   1.266 +
   1.267 +/* TCP/IP close
   1.268 + * Accepts: TCP/IP stream
   1.269 + */
   1.270 +
   1.271 +void tcp_close (TCPSTREAM *stream)
   1.272 +{
   1.273 +  tcp_abort (stream);		/* nuke the stream */
   1.274 +				/* flush host names */
   1.275 +  fs_give ((void **) &stream->host);
   1.276 +  fs_give ((void **) &stream->localhost);
   1.277 +  fs_give ((void **) &stream);	/* flush the stream */
   1.278 +}
   1.279 +
   1.280 +
   1.281 +/* TCP/IP abort stream
   1.282 + * Accepts: TCP/IP stream
   1.283 + * Returns: NIL always
   1.284 + */
   1.285 +
   1.286 +long tcp_abort (TCPSTREAM *stream)
   1.287 +{
   1.288 +  if (stream->tcpsi >= 0) {	/* no-op if no socket */
   1.289 +				/* nuke the socket */
   1.290 +    tcp_disconnect (&(stream->tcpsi));
   1.291 +    stream->tcpsi = stream->tcpso = -1;
   1.292 +  }
   1.293 +  return NIL;
   1.294 +}
   1.295 +
   1.296 +/* TCP/IP get host name
   1.297 + * Accepts: TCP/IP stream
   1.298 + * Returns: host name for this stream
   1.299 + */
   1.300 +
   1.301 +char *tcp_host (TCPSTREAM *stream)
   1.302 +{
   1.303 +  return stream->host;		/* return host name */
   1.304 +}
   1.305 +
   1.306 +
   1.307 +/* TCP/IP get remote host name
   1.308 + * Accepts: TCP/IP stream
   1.309 + * Returns: host name for this stream
   1.310 + */
   1.311 +
   1.312 +char *tcp_remotehost (TCPSTREAM *stream)
   1.313 +{
   1.314 +  return stream->host;		/* return host name */
   1.315 +}
   1.316 +
   1.317 +
   1.318 +/* TCP/IP return port for this stream
   1.319 + * Accepts: TCP/IP stream
   1.320 + * Returns: port number for this stream
   1.321 + */
   1.322 +
   1.323 +unsigned long tcp_port (TCPSTREAM *stream)
   1.324 +{
   1.325 +  return stream->port;		/* return port number */
   1.326 +}
   1.327 +
   1.328 +
   1.329 +/* TCP/IP get local host name
   1.330 + * Accepts: TCP/IP stream
   1.331 + * Returns: local host name
   1.332 + */
   1.333 +
   1.334 +char *tcp_localhost (TCPSTREAM *stream)
   1.335 +{
   1.336 +  return stream->localhost;	/* return local host name */
   1.337 +}
   1.338 +
   1.339 +/* Return my local host name
   1.340 + * Returns: my local host name
   1.341 + */
   1.342 +
   1.343 +char *mylocalhost ()
   1.344 +{
   1.345 +  int status;
   1.346 +  char tmp[MAILTMPLEN];
   1.347 +  if (!myLocalHost) {		/* have local host yet? */
   1.348 +				/* receives local host name */
   1.349 +    struct dsc$descriptor LocalhostDesc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_D,NULL};
   1.350 +    if (!((status = net_get_hostname (&LocalhostDesc)) & 0x1)) {
   1.351 +      sprintf (tmp,"Can't get local hostname, status=%d",status);
   1.352 +      mm_log (tmp,ERROR);
   1.353 +      return "UNKNOWN";
   1.354 +    }
   1.355 +    strncpy (tmp,LocalhostDesc.dsc$a_pointer,LocalhostDesc.dsc$w_length);
   1.356 +    tmp[LocalhostDesc.dsc$w_length] = '\0';
   1.357 +    str$free1_dx (&LocalhostDesc);
   1.358 +    myLocalHost = cpystr (tmp);
   1.359 +  }
   1.360 +  return myLocalHost;
   1.361 +}
   1.362 +
   1.363 +/* TCP/IP return canonical form of host name
   1.364 + * Accepts: host name
   1.365 + * Returns: canonical form of host name
   1.366 + */
   1.367 +
   1.368 +char *tcp_canonical (char *name)
   1.369 +{
   1.370 +  return name;
   1.371 +}
   1.372 +
   1.373 +
   1.374 +/* TCP/IP get client host name (server calls only)
   1.375 + * Returns: client host name
   1.376 + */
   1.377 +
   1.378 +char *tcp_clienthost ()
   1.379 +{
   1.380 +  return "UNKNOWN";
   1.381 +}