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/* ========================================================================
* Copyright 1988-2006 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*
* ========================================================================
*/
/*
* Program: Dummy routines for WCE
*
* Author: Mark Crispin
* Networks and Distributed Computing
* Computing & Communications
* University of Washington
* Administration Building, AG-44
* Seattle, WA 98195
* Internet: MRC@CAC.Washington.EDU
*
* Date: 24 May 1993
* Last Edited: 30 August 2006
*/
#include <ctype.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <direct.h>
#include "mail.h"
#include "osdep.h"
#include <sys\stat.h>
#include <dos.h>
#include "dummy.h"
#include "misc.h"
/* Function prototypes */
DRIVER *dummy_valid (char *name);
void *dummy_parameters (long function,void *value);
MAILSTREAM *dummy_open (MAILSTREAM *stream);
void dummy_close (MAILSTREAM *stream,long options);
long dummy_ping (MAILSTREAM *stream);
void dummy_check (MAILSTREAM *stream);
long dummy_expunge (MAILSTREAM *stream,char *sequence,long options);
long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
/* Dummy routines */
/* Driver dispatch used by MAIL */
DRIVER dummydriver = {
"dummy", /* driver name */
DR_LOCAL|DR_MAIL, /* driver flags */
(DRIVER *) NIL, /* next driver */
dummy_valid, /* mailbox is valid for us */
dummy_parameters, /* manipulate parameters */
dummy_scan, /* scan mailboxes */
dummy_list, /* list mailboxes */
dummy_lsub, /* list subscribed mailboxes */
NIL, /* subscribe to mailbox */
NIL, /* unsubscribe from mailbox */
dummy_create, /* create mailbox */
dummy_delete, /* delete mailbox */
dummy_rename, /* rename mailbox */
mail_status_default, /* status of mailbox */
dummy_open, /* open mailbox */
dummy_close, /* close mailbox */
NIL, /* fetch message "fast" attributes */
NIL, /* fetch message flags */
NIL, /* fetch overview */
NIL, /* fetch message structure */
NIL, /* fetch header */
NIL, /* fetch text */
NIL, /* fetch message data */
NIL, /* unique identifier */
NIL, /* message number from UID */
NIL, /* modify flags */
NIL, /* per-message modify flags */
NIL, /* search for message based on criteria */
NIL, /* sort messages */
NIL, /* thread messages */
dummy_ping, /* ping mailbox to see if still alive */
dummy_check, /* check for new messages */
dummy_expunge, /* expunge deleted messages */
dummy_copy, /* copy messages to another mailbox */
dummy_append, /* append string message to mailbox */
NIL /* garbage collect stream */
};
/* prototype stream */
MAILSTREAM dummyproto = {&dummydriver};
/* driver parameters */
static char *file_extension = NIL;
/* Dummy validate mailbox
* Accepts: mailbox name
* Returns: our driver if name is valid, NIL otherwise
*/
DRIVER *dummy_valid (char *name)
{
char *s,tmp[MAILTMPLEN];
struct stat sbuf;
/* must be valid local mailbox */
return (name && *name && (*name != '{') &&
(s = mailboxfile (tmp,name)) && (!*s || !stat (s,&sbuf))) ?
&dummydriver : NIL;
}
/* Dummy manipulate driver parameters
* Accepts: function code
* function-dependent value
* Returns: function-dependent return value
*/
void *dummy_parameters (long function,void *value)
{
return value;
}
/* Dummy scan mailboxes
* Accepts: mail stream
* reference
* pattern to search
* string to scan
*/
void dummy_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
{
/* return silently */
}
/* Dummy list mailboxes
* Accepts: mail stream
* reference
* pattern to search
*/
void dummy_list (MAILSTREAM *stream,char *ref,char *pat)
{
/* return silently */
}
/* Dummy list subscribed mailboxes
* Accepts: mail stream
* pattern to search
*/
void dummy_lsub (MAILSTREAM *stream,char *ref,char *pat)
{
/* return silently */
}
/* Dummy create mailbox
* Accepts: mail stream
* mailbox name to create
* Returns: T on success, NIL on failure
*/
long dummy_create (MAILSTREAM *stream,char *mailbox)
{
return NIL; /* always fails */
}
/* Dummy delete mailbox
* Accepts: mail stream
* mailbox name to delete
* Returns: T on success, NIL on failure
*/
long dummy_delete (MAILSTREAM *stream,char *mailbox)
{
return NIL; /* always fails */
}
/* Mail rename mailbox
* Accepts: mail stream
* old mailbox name
* new mailbox name
* Returns: T on success, NIL on failure
*/
long dummy_rename (MAILSTREAM *stream,char *old,char *newname)
{
return NIL; /* always fails */
}
/* Dummy open
* Accepts: stream to open
* Returns: stream on success, NIL on failure
*/
MAILSTREAM *dummy_open (MAILSTREAM *stream)
{
char tmp[MAILTMPLEN];
/* OP_PROTOTYPE call or silence */
if (!stream || stream->silent) return NIL;
if (compare_cstring (stream->mailbox,"INBOX")) {
sprintf (tmp,"Not a mailbox: %s",stream->mailbox);
mm_log (tmp,ERROR);
return NIL; /* always fails */
}
if (!stream->silent) { /* only if silence not requested */
mail_exists (stream,0); /* say there are 0 messages */
mail_recent (stream,0);
stream->uid_validity = time (0);
}
stream->inbox = T; /* note that it's an INBOX */
return stream; /* return success */
}
/* Dummy close
* Accepts: MAIL stream
* options
*/
void dummy_close (MAILSTREAM *stream,long options)
{
/* return silently */
}
/* Dummy ping mailbox
* Accepts: MAIL stream
* Returns: T if stream alive, else NIL
* No-op for readonly files, since read/writer can expunge it from under us!
*/
long dummy_ping (MAILSTREAM *stream)
{
return T;
}
/* Dummy check mailbox
* Accepts: MAIL stream
* No-op for readonly files, since read/writer can expunge it from under us!
*/
void dummy_check (MAILSTREAM *stream)
{
dummy_ping (stream); /* invoke ping */
}
/* Dummy expunge mailbox
* Accepts: MAIL stream
* sequence to expunge if non-NIL
* expunge options
* Returns: T, always
*/
long dummy_expunge (MAILSTREAM *stream,char *sequence,long options)
{
return LONGT;
}
/* Dummy copy message(s)
* Accepts: MAIL stream
* sequence
* destination mailbox
* options
* Returns: T if copy successful, else NIL
*/
long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
{
if ((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
mail_sequence (stream,sequence)) fatal ("Impossible dummy_copy");
return NIL;
}
/* Dummy append message string
* Accepts: mail stream
* destination mailbox
* stringstruct of message to append
* Returns: T on success, NIL on failure
*/
long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
{
char tmp[MAILTMPLEN];
sprintf (tmp,"Can't append to %s",mailbox);
mm_log (tmp,ERROR); /* pass up error */
return NIL; /* always fails */
}
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