1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/osdep/dos/tcp_dwa.c	Mon Sep 14 15:17:45 2009 +0900
     1.3 @@ -0,0 +1,344 @@
     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:	Waterloo DOS TCP/IP routines
    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:	11 April 1989
    1.29 + * Last Edited:	13 January 2008
    1.30 + */
    1.31 +
    1.32 +
    1.33 +/* Global data */
    1.34 +
    1.35 +short sock_initted = 0;		/* global so others using net can see it */
    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 +/* TCP/IP open
    1.52 + * Accepts: host name
    1.53 + *	    contact service name
    1.54 + *	    contact port number
    1.55 + * Returns: TCP/IP stream if success else NIL
    1.56 + */
    1.57 +
    1.58 +TCPSTREAM *TCP_open (char *host,char *service,unsigned long port)
    1.59 +{
    1.60 +  TCPSTREAM *stream = NIL;
    1.61 +  tcp_Socket *sock;
    1.62 +  char *s,tmp[MAILTMPLEN];
    1.63 +  unsigned long adr,i,j,k,l;
    1.64 +  port &= 0xffff;		/* erase flags */
    1.65 +				/* initialize if first time here */
    1.66 +  if (!sock_initted++) sock_init();
    1.67 +  /* The domain literal form is used (rather than simply the dotted decimal
    1.68 +     as with other Unix programs) because it has to be a valid "host name"
    1.69 +     in mailsystem terminology. */
    1.70 +				/* look like domain literal? */
    1.71 +  if (host[0] == '[' && host[strlen (host)-1] == ']') {
    1.72 +    if (((i = strtoul (s = host+1,&s,10)) <= 255) && *s++ == '.' &&
    1.73 +	((j = strtoul (s,&s,10)) <= 255) && *s++ == '.' &&
    1.74 +	((k = strtoul (s,&s,10)) <= 255) && *s++ == '.' &&
    1.75 +	((l = strtoul (s,&s,10)) <= 255) && *s++ == ']' && !*s)
    1.76 +      adr = (i << 24) + (j << 16) + (k << 8) + l;
    1.77 +    else {
    1.78 +      sprintf (tmp,"Bad format domain-literal: %.80s",host);
    1.79 +      mm_log (tmp,ERROR);
    1.80 +      return NIL;
    1.81 +    }
    1.82 +  }
    1.83 +  else {			/* lookup host name */
    1.84 +    if (!(adr = resolve (host))) {
    1.85 +      sprintf (tmp,"Host not found: %s",host);
    1.86 +      mm_log (tmp,ERROR);
    1.87 +      return NIL;
    1.88 +    }
    1.89 +  }
    1.90 +
    1.91 +				/* OK to instantiate socket now */
    1.92 +  sock = (tcp_Socket *) fs_get (sizeof (tcp_Socket));
    1.93 +				/* open connection */
    1.94 +  if (!tcp_open (sock,(word) 0,adr,(word) port,NULL)) {
    1.95 +    sprintf (tmp,"Can't connect to %.80s,%ld",host,port);
    1.96 +    mm_log (tmp,ERROR);
    1.97 +    fs_give ((void **) &sock);
    1.98 +    return NIL;
    1.99 +  }
   1.100 +				/* create TCP/IP stream */
   1.101 +  stream = (TCPSTREAM *) fs_get (sizeof (TCPSTREAM));
   1.102 +  stream->host = cpystr (host);	/* official host name */
   1.103 +  stream->localhost = cpystr (mylocalhost ());
   1.104 +  stream->port = port;		/* port number */
   1.105 +  stream->tcps = sock;		/* init socket */
   1.106 +  stream->ictr = 0;		/* init input counter */
   1.107 +  return stream;		/* return success */
   1.108 +}
   1.109 +  
   1.110 +/* TCP/IP authenticated open
   1.111 + * Accepts: NETMBX specifier
   1.112 + *	    service name
   1.113 + *	    returned user name buffer
   1.114 + * Returns: TCP/IP stream if success else NIL
   1.115 + */
   1.116 +
   1.117 +TCPSTREAM *tcp_aopen (NETMBX *mb,char *service,char *usrbuf)
   1.118 +{
   1.119 +  return NIL;			/* always NIL on DOS */
   1.120 +}
   1.121 +
   1.122 +/* TCP receive line
   1.123 + * Accepts: TCP stream
   1.124 + * Returns: text line string or NIL if failure
   1.125 + */
   1.126 +
   1.127 +char *tcp_getline (TCPSTREAM *stream)
   1.128 +{
   1.129 +  unsigned long n,contd;
   1.130 +  char *ret = tcp_getline_work (stream,&n,&contd);
   1.131 +  if (ret && contd) {		/* got a line needing continuation? */
   1.132 +    STRINGLIST *stl = mail_newstringlist ();
   1.133 +    STRINGLIST *stc = stl;
   1.134 +    do {			/* collect additional lines */
   1.135 +      stc->text.data = (unsigned char *) ret;
   1.136 +      stc->text.size = n;
   1.137 +      stc = stc->next = mail_newstringlist ();
   1.138 +      ret = tcp_getline_work (stream,&n,&contd);
   1.139 +    } while (ret && contd);
   1.140 +    if (ret) {			/* stash final part of line on list */
   1.141 +      stc->text.data = (unsigned char *) ret;
   1.142 +      stc->text.size = n;
   1.143 +				/* determine how large a buffer we need */
   1.144 +      for (n = 0, stc = stl; stc; stc = stc->next) n += stc->text.size;
   1.145 +      ret = fs_get (n + 1);	/* copy parts into buffer */
   1.146 +      for (n = 0, stc = stl; stc; n += stc->text.size, stc = stc->next)
   1.147 +	memcpy (ret + n,stc->text.data,stc->text.size);
   1.148 +      ret[n] = '\0';
   1.149 +    }
   1.150 +    mail_free_stringlist (&stl);/* either way, done with list */
   1.151 +  }
   1.152 +  return ret;
   1.153 +}
   1.154 +
   1.155 +/* TCP receive line or partial line
   1.156 + * Accepts: TCP stream
   1.157 + *	    pointer to return size
   1.158 + *	    pointer to return continuation flag
   1.159 + * Returns: text line string, size and continuation flag, or NIL if failure
   1.160 + */
   1.161 +
   1.162 +static char *tcp_getline_work (TCPSTREAM *stream,unsigned long *size,
   1.163 +			       long *contd)
   1.164 +{
   1.165 +  unsigned long n;
   1.166 +  char *s,*ret,c,d;
   1.167 +  *contd = NIL;			/* assume no continuation */
   1.168 +				/* make sure have data */
   1.169 +  if (!tcp_getdata (stream)) return NIL;
   1.170 +  for (s = stream->iptr, n = 0, c = '\0'; stream->ictr--; n++, c = d) {
   1.171 +    d = *stream->iptr++;	/* slurp another character */
   1.172 +    if ((c == '\015') && (d == '\012')) {
   1.173 +      ret = (char *) fs_get (n--);
   1.174 +      memcpy (ret,s,*size = n);	/* copy into a free storage string */
   1.175 +      ret[n] = '\0';		/* tie off string with null */
   1.176 +      return ret;
   1.177 +    }
   1.178 +  }
   1.179 +				/* copy partial string from buffer */
   1.180 +  memcpy ((ret = (char *) fs_get (n)),s,*size = n);
   1.181 +				/* get more data from the net */
   1.182 +  if (!tcp_getdata (stream)) fs_give ((void **) &ret);
   1.183 +				/* special case of newline broken by buffer */
   1.184 +  else if ((c == '\015') && (*stream->iptr == '\012')) {
   1.185 +    stream->iptr++;		/* eat the line feed */
   1.186 +    stream->ictr--;
   1.187 +    ret[*size = --n] = '\0';	/* tie off string with null */
   1.188 +  }
   1.189 +  else *contd = LONGT;		/* continuation needed */
   1.190 +  return ret;
   1.191 +}
   1.192 +
   1.193 +/* TCP/IP receive buffer
   1.194 + * Accepts: TCP/IP stream
   1.195 + *	    size in bytes
   1.196 + *	    buffer to read into
   1.197 + * Returns: T if success, NIL otherwise
   1.198 + */
   1.199 +
   1.200 +long tcp_getbuffer (TCPSTREAM *stream,unsigned long size,char *buffer)
   1.201 +{
   1.202 +  unsigned long n;
   1.203 +  char *bufptr = buffer;
   1.204 +  while (size > 0) {		/* until request satisfied */
   1.205 +    if (!tcp_getdata (stream)) return NIL;
   1.206 +    n = min (size,stream->ictr);/* number of bytes to transfer */
   1.207 +				/* do the copy */
   1.208 +    memcpy (bufptr,stream->iptr,(size_t) n);
   1.209 +    bufptr += n;		/* update pointer */
   1.210 +    stream->iptr +=n;
   1.211 +    size -= n;			/* update # of bytes to do */
   1.212 +    stream->ictr -=n;
   1.213 +  }
   1.214 +  bufptr[0] = '\0';		/* tie off string */
   1.215 +  return T;
   1.216 +}
   1.217 +
   1.218 +
   1.219 +/* TCP/IP receive data
   1.220 + * Accepts: TCP/IP stream
   1.221 + * Returns: T if success, NIL otherwise
   1.222 + */
   1.223 +
   1.224 +long tcp_getdata (TCPSTREAM *stream)
   1.225 +{
   1.226 +  int status;
   1.227 +  if (!stream->tcps) return NIL;/* no-no nuked socket */
   1.228 +  while (stream->ictr < 1) {	/* if buffer empty, block for input and read */
   1.229 +    if (!_ip_delay1 (stream->tcps,600,NULL,&status))
   1.230 +      stream->ictr = sock_fastread (stream->tcps,
   1.231 +				    stream->iptr = stream->ibuf,BUFLEN);
   1.232 +    else if (status == 1) {	/* nuke the socket if closed */
   1.233 +      sock_close (stream->tcps);
   1.234 +      fs_give ((void **) &stream->tcps);
   1.235 +      return NIL;
   1.236 +    }
   1.237 +  }
   1.238 +  return T;
   1.239 +}
   1.240 +
   1.241 +/* TCP/IP send string as record
   1.242 + * Accepts: TCP/IP stream
   1.243 + * Returns: T if success else NIL
   1.244 + */
   1.245 +
   1.246 +long tcp_soutr (TCPSTREAM *stream,char *string)
   1.247 +{
   1.248 +				/* output the cruft */
   1.249 +  sock_puts (stream->tcps,string);
   1.250 +  return T;			/* all done */
   1.251 +}
   1.252 +
   1.253 +
   1.254 +/* TCP/IP send string
   1.255 + * Accepts: TCP/IP stream
   1.256 + *	    string pointer
   1.257 + *	    byte count
   1.258 + * Returns: T if success else NIL
   1.259 + */
   1.260 +
   1.261 +long tcp_sout (TCPSTREAM *stream,char *string,unsigned long size)
   1.262 +{
   1.263 +  sock_write (stream->tcps,string,(int) size);
   1.264 +  return T;
   1.265 +}
   1.266 +
   1.267 +
   1.268 +/* TCP/IP close
   1.269 + * Accepts: TCP/IP stream
   1.270 + */
   1.271 +
   1.272 +void tcp_close (TCPSTREAM *stream)
   1.273 +{
   1.274 +  if (stream->tcps){ 		/* nuke the socket */
   1.275 +    sock_close (stream->tcps);
   1.276 +    _ip_delay2 (stream->tcps,0,NULL,NULL);
   1.277 +  }
   1.278 +  fs_give ((void **) &stream->tcps);
   1.279 +				/* flush host names */
   1.280 +  fs_give ((void **) &stream->host);
   1.281 +  fs_give ((void **) &stream->localhost);
   1.282 +  fs_give ((void **) &stream);	/* flush the stream */
   1.283 +}
   1.284 +
   1.285 +/* TCP/IP get host name
   1.286 + * Accepts: TCP/IP stream
   1.287 + * Returns: host name for this stream
   1.288 + */
   1.289 +
   1.290 +char *tcp_host (TCPSTREAM *stream)
   1.291 +{
   1.292 +  return stream->host;		/* return host name */
   1.293 +}
   1.294 +
   1.295 +
   1.296 +/* TCP/IP get remote host name
   1.297 + * Accepts: TCP/IP stream
   1.298 + * Returns: host name for this stream
   1.299 + */
   1.300 +
   1.301 +char *tcp_remotehost (TCPSTREAM *stream)
   1.302 +{
   1.303 +  return stream->host;		/* return host name */
   1.304 +}
   1.305 +
   1.306 +
   1.307 +/* TCP/IP return port for this stream
   1.308 + * Accepts: TCP/IP stream
   1.309 + * Returns: port number for this stream
   1.310 + */
   1.311 +
   1.312 +unsigned long tcp_port (TCPSTREAM *stream)
   1.313 +{
   1.314 +  return stream->port;		/* return port number */
   1.315 +}
   1.316 +
   1.317 +
   1.318 +/* TCP/IP get local host name
   1.319 + * Accepts: TCP/IP stream
   1.320 + * Returns: local host name
   1.321 + */
   1.322 +
   1.323 +char *tcp_localhost (TCPSTREAM *stream)
   1.324 +{
   1.325 +  return stream->localhost;	/* return local host name */
   1.326 +}
   1.327 +
   1.328 +
   1.329 +/* TCP/IP return canonical form of host name
   1.330 + * Accepts: host name
   1.331 + * Returns: canonical form of host name
   1.332 + */
   1.333 +
   1.334 +char *tcp_canonical (char *name)
   1.335 +{
   1.336 +  return name;
   1.337 +}
   1.338 +
   1.339 +
   1.340 +/* TCP/IP get client host name (server calls only)
   1.341 + * Returns: client host name
   1.342 + */
   1.343 +
   1.344 +char *tcp_clienthost ()
   1.345 +{
   1.346 +  return "UNKNOWN";
   1.347 +}