1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/osdep/amiga/dummy.c	Mon Sep 14 15:17:45 2009 +0900
     1.3 @@ -0,0 +1,809 @@
     1.4 +/* ========================================================================
     1.5 + * Copyright 1988-2007 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:	Dummy 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:	9 May 1991
    1.29 + * Last Edited:	1 June 2007
    1.30 + */
    1.31 +
    1.32 +
    1.33 +#include <stdio.h>
    1.34 +#include <ctype.h>
    1.35 +#include <errno.h>
    1.36 +extern int errno;		/* just in case */
    1.37 +#include "mail.h"
    1.38 +#include "osdep.h"
    1.39 +#include <pwd.h>
    1.40 +#include <sys/stat.h>
    1.41 +#include "dummy.h"
    1.42 +#include "misc.h"
    1.43 +
    1.44 +/* Function prototypes */
    1.45 +
    1.46 +DRIVER *dummy_valid (char *name);
    1.47 +void *dummy_parameters (long function,void *value);
    1.48 +void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
    1.49 +		      long level);
    1.50 +long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
    1.51 +		   long attributes,char *contents);
    1.52 +long dummy_subscribe (MAILSTREAM *stream,char *mailbox);
    1.53 +MAILSTREAM *dummy_open (MAILSTREAM *stream);
    1.54 +void dummy_close (MAILSTREAM *stream,long options);
    1.55 +long dummy_ping (MAILSTREAM *stream);
    1.56 +void dummy_check (MAILSTREAM *stream);
    1.57 +long dummy_expunge (MAILSTREAM *stream,char *sequence,long options);
    1.58 +long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
    1.59 +long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
    1.60 +
    1.61 +/* Dummy routines */
    1.62 +
    1.63 +
    1.64 +/* Driver dispatch used by MAIL */
    1.65 +
    1.66 +DRIVER dummydriver = {
    1.67 +  "dummy",			/* driver name */
    1.68 +  DR_LOCAL|DR_MAIL,		/* driver flags */
    1.69 +  (DRIVER *) NIL,		/* next driver */
    1.70 +  dummy_valid,			/* mailbox is valid for us */
    1.71 +  dummy_parameters,		/* manipulate parameters */
    1.72 +  dummy_scan,			/* scan mailboxes */
    1.73 +  dummy_list,			/* list mailboxes */
    1.74 +  dummy_lsub,			/* list subscribed mailboxes */
    1.75 +  dummy_subscribe,		/* subscribe to mailbox */
    1.76 +  NIL,				/* unsubscribe from mailbox */
    1.77 +  dummy_create,			/* create mailbox */
    1.78 +  dummy_delete,			/* delete mailbox */
    1.79 +  dummy_rename,			/* rename mailbox */
    1.80 +  mail_status_default,		/* status of mailbox */
    1.81 +  dummy_open,			/* open mailbox */
    1.82 +  dummy_close,			/* close mailbox */
    1.83 +  NIL,				/* fetch message "fast" attributes */
    1.84 +  NIL,				/* fetch message flags */
    1.85 +  NIL,				/* fetch overview */
    1.86 +  NIL,				/* fetch message structure */
    1.87 +  NIL,				/* fetch header */
    1.88 +  NIL,				/* fetch text */
    1.89 +  NIL,				/* fetch message data */
    1.90 +  NIL,				/* unique identifier */
    1.91 +  NIL,				/* message number from UID */
    1.92 +  NIL,				/* modify flags */
    1.93 +  NIL,				/* per-message modify flags */
    1.94 +  NIL,				/* search for message based on criteria */
    1.95 +  NIL,				/* sort messages */
    1.96 +  NIL,				/* thread messages */
    1.97 +  dummy_ping,			/* ping mailbox to see if still alive */
    1.98 +  dummy_check,			/* check for new messages */
    1.99 +  dummy_expunge,		/* expunge deleted messages */
   1.100 +  dummy_copy,			/* copy messages to another mailbox */
   1.101 +  dummy_append,			/* append string message to mailbox */
   1.102 +  NIL				/* garbage collect stream */
   1.103 +};
   1.104 +
   1.105 +				/* prototype stream */
   1.106 +MAILSTREAM dummyproto = {&dummydriver};
   1.107 +
   1.108 +/* Dummy validate mailbox
   1.109 + * Accepts: mailbox name
   1.110 + * Returns: our driver if name is valid, NIL otherwise
   1.111 + */
   1.112 +
   1.113 +DRIVER *dummy_valid (char *name)
   1.114 +{
   1.115 +  char *s,tmp[MAILTMPLEN];
   1.116 +  struct stat sbuf;
   1.117 +				/* must be valid local mailbox */
   1.118 +  if (name && *name && (*name != '{') && (s = mailboxfile (tmp,name))) {
   1.119 +				/* indeterminate clearbox INBOX */
   1.120 +    if (!*s) return &dummydriver;
   1.121 +    else if (!stat (s,&sbuf)) switch (sbuf.st_mode & S_IFMT) {
   1.122 +    case S_IFREG:
   1.123 +    case S_IFDIR:
   1.124 +      return &dummydriver;
   1.125 +    }
   1.126 +				/* blackbox INBOX does not exist yet */
   1.127 +    else if (!compare_cstring (name,"INBOX")) return &dummydriver;
   1.128 +  }
   1.129 +  return NIL;
   1.130 +}
   1.131 +
   1.132 +
   1.133 +/* Dummy manipulate driver parameters
   1.134 + * Accepts: function code
   1.135 + *	    function-dependent value
   1.136 + * Returns: function-dependent return value
   1.137 + */
   1.138 +
   1.139 +void *dummy_parameters (long function,void *value)
   1.140 +{
   1.141 +  void *ret = NIL;
   1.142 +  switch ((int) function) {
   1.143 +  case GET_INBOXPATH:
   1.144 +    if (value) ret = dummy_file ((char *) value,"INBOX");
   1.145 +    break;
   1.146 +  }
   1.147 +  return ret;
   1.148 +}
   1.149 +
   1.150 +/* Dummy scan mailboxes
   1.151 + * Accepts: mail stream
   1.152 + *	    reference
   1.153 + *	    pattern to search
   1.154 + *	    string to scan
   1.155 + */
   1.156 +
   1.157 +void dummy_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
   1.158 +{
   1.159 +  DRIVER *drivers;
   1.160 +  char *s,test[MAILTMPLEN],file[MAILTMPLEN];
   1.161 +  long i;
   1.162 +  if (!pat || !*pat) {		/* empty pattern? */
   1.163 +    if (dummy_canonicalize (test,ref,"*")) {
   1.164 +				/* tie off name at root */
   1.165 +      if (s = strchr (test,'/')) *++s = '\0';
   1.166 +      else test[0] = '\0';
   1.167 +      dummy_listed (stream,'/',test,LATT_NOSELECT,NIL);
   1.168 +    }
   1.169 +  }
   1.170 +				/* get canonical form of name */
   1.171 +  else if (dummy_canonicalize (test,ref,pat)) {
   1.172 +				/* found any wildcards? */
   1.173 +    if (s = strpbrk (test,"%*")) {
   1.174 +				/* yes, copy name up to that point */
   1.175 +      strncpy (file,test,i = s - test);
   1.176 +      file[i] = '\0';		/* tie off */
   1.177 +    }
   1.178 +    else strcpy (file,test);	/* use just that name then */
   1.179 +    if (s = strrchr (file,'/')){/* find directory name */
   1.180 +      *++s = '\0';		/* found, tie off at that point */
   1.181 +      s = file;
   1.182 +    }
   1.183 +				/* silly case */
   1.184 +    else if ((file[0] == '~') || (file[0] == '#')) s = file;
   1.185 +				/* do the work */
   1.186 +    dummy_list_work (stream,s,test,contents,0);
   1.187 +				/* always an INBOX */
   1.188 +    if (pmatch ("INBOX",ucase (test))) {
   1.189 +				/* done if have a dirfmt INBOX */
   1.190 +      for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL);
   1.191 +	   drivers && !(!(drivers->flags & DR_DISABLE) &&
   1.192 +			(drivers->flags & DR_DIRFMT) &&
   1.193 +			(*drivers->valid) ("INBOX")); drivers = drivers->next);
   1.194 +				/* list INBOX appropriately */
   1.195 +      dummy_listed (stream,drivers ? '/' : NIL,"INBOX",
   1.196 +		    drivers ? NIL : LATT_NOINFERIORS,contents);
   1.197 +    }
   1.198 +  }
   1.199 +}
   1.200 +
   1.201 +
   1.202 +/* Dummy list mailboxes
   1.203 + * Accepts: mail stream
   1.204 + *	    reference
   1.205 + *	    pattern to search
   1.206 + */
   1.207 +
   1.208 +void dummy_list (MAILSTREAM *stream,char *ref,char *pat)
   1.209 +{
   1.210 +  dummy_scan (stream,ref,pat,NIL);
   1.211 +}
   1.212 +
   1.213 +/* Dummy list subscribed mailboxes
   1.214 + * Accepts: mail stream
   1.215 + *	    reference
   1.216 + *	    pattern to search
   1.217 + */
   1.218 +
   1.219 +void dummy_lsub (MAILSTREAM *stream,char *ref,char *pat)
   1.220 +{
   1.221 +  void *sdb = NIL;
   1.222 +  char *s,*t,test[MAILTMPLEN],tmp[MAILTMPLEN];
   1.223 +  int showuppers = pat[strlen (pat) - 1] == '%';
   1.224 +				/* get canonical form of name */
   1.225 +  if (dummy_canonicalize (test,ref,pat) && (s = sm_read (&sdb))) do
   1.226 +    if (*s != '{') {
   1.227 +      if (!compare_cstring (s,"INBOX") &&
   1.228 +	  pmatch ("INBOX",ucase (strcpy (tmp,test))))
   1.229 +	mm_lsub (stream,NIL,s,LATT_NOINFERIORS);
   1.230 +      else if (pmatch_full (s,test,'/')) mm_lsub (stream,'/',s,NIL);
   1.231 +      else while (showuppers && (t = strrchr (s,'/'))) {
   1.232 +	*t = '\0';		/* tie off the name */
   1.233 +	if (pmatch_full (s,test,'/')) mm_lsub (stream,'/',s,LATT_NOSELECT);
   1.234 +      }
   1.235 +    }
   1.236 +  while (s = sm_read (&sdb));	/* until no more subscriptions */
   1.237 +}
   1.238 +
   1.239 +
   1.240 +/* Dummy subscribe to mailbox
   1.241 + * Accepts: mail stream
   1.242 + *	    mailbox to add to subscription list
   1.243 + * Returns: T on success, NIL on failure
   1.244 + */
   1.245 +
   1.246 +long dummy_subscribe (MAILSTREAM *stream,char *mailbox)
   1.247 +{
   1.248 +  char *s,tmp[MAILTMPLEN];
   1.249 +  struct stat sbuf;
   1.250 +				/* must be valid local mailbox */
   1.251 +  if ((s = mailboxfile (tmp,mailbox)) && *s && !stat (s,&sbuf))
   1.252 +    switch (sbuf.st_mode & S_IFMT) {
   1.253 +    case S_IFDIR:		/* allow but snarl */
   1.254 +      sprintf (tmp,"CLIENT BUG DETECTED: subscribe of non-mailbox directory %.80s",
   1.255 +	       mailbox);
   1.256 +      MM_NOTIFY (stream,tmp,WARN);
   1.257 +    case S_IFREG:
   1.258 +      return sm_subscribe (mailbox);
   1.259 +    }
   1.260 +  sprintf (tmp,"Can't subscribe %.80s: not a mailbox",mailbox);
   1.261 +  MM_LOG (tmp,ERROR);
   1.262 +  return NIL;
   1.263 +}
   1.264 +
   1.265 +/* Dummy list mailboxes worker routine
   1.266 + * Accepts: mail stream
   1.267 + *	    directory name to search
   1.268 + *	    search pattern
   1.269 + *	    string to scan
   1.270 + *	    search level
   1.271 + */
   1.272 +
   1.273 +void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
   1.274 +		      long level)
   1.275 +{
   1.276 +  DRIVER *drivers;
   1.277 +  dirfmttest_t dt;
   1.278 +  DIR *dp;
   1.279 +  struct direct *d;
   1.280 +  struct stat sbuf;
   1.281 +  char tmp[MAILTMPLEN],path[MAILTMPLEN];
   1.282 +  size_t len = 0;
   1.283 +				/* punt if bogus name */
   1.284 +  if (!mailboxdir (tmp,dir,NIL)) return;
   1.285 +  if (dp = opendir (tmp)) {	/* do nothing if can't open directory */
   1.286 +				/* see if a non-namespace directory format */
   1.287 +    for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
   1.288 +	 dir && !dt && drivers; drivers = drivers->next)
   1.289 +      if (!(drivers->flags & DR_DISABLE) && (drivers->flags & DR_DIRFMT) &&
   1.290 +	  (*drivers->valid) (dir))
   1.291 +	dt = mail_parameters ((*drivers->open) (NIL),GET_DIRFMTTEST,NIL);
   1.292 +				/* list it if at top-level */
   1.293 +    if (!level && dir && pmatch_full (dir,pat,'/') && !pmatch (dir,"INBOX"))
   1.294 +      dummy_listed (stream,'/',dir,dt ? NIL : LATT_NOSELECT,contents);
   1.295 +
   1.296 +				/* scan directory, ignore . and .. */
   1.297 +    if (!dir || dir[(len = strlen (dir)) - 1] == '/') while (d = readdir (dp))
   1.298 +      if ((!(dt && (*dt) (d->d_name))) &&
   1.299 +	  ((d->d_name[0] != '.') ||
   1.300 +	   (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
   1.301 +	    (d->d_name[1] && (((d->d_name[1] != '.') || d->d_name[2]))))) &&
   1.302 +	  ((len + strlen (d->d_name)) <= NETMAXMBX)) {
   1.303 +				/* see if name is useful */
   1.304 +	if (dir) sprintf (tmp,"%s%s",dir,d->d_name);
   1.305 +	else strcpy (tmp,d->d_name);
   1.306 +				/* make sure useful and can get info */
   1.307 +	if ((pmatch_full (strcpy (path,tmp),pat,'/') ||
   1.308 +	     pmatch_full (strcat (path,"/"),pat,'/') ||
   1.309 +	     dmatch (path,pat,'/')) &&
   1.310 +	    mailboxdir (path,dir,"x") && (len = strlen (path)) &&
   1.311 +	    strcpy (path+len-1,d->d_name) && !stat (path,&sbuf)) {
   1.312 +				/* only interested in file type */
   1.313 +	  switch (sbuf.st_mode & S_IFMT) {
   1.314 +	  case S_IFDIR:		/* directory? */
   1.315 +				/* form with trailing / */
   1.316 +	    sprintf (path,"%s/",tmp);
   1.317 +				/* skip listing if INBOX */
   1.318 +	    if (!pmatch (tmp,"INBOX")) {
   1.319 +	      if (pmatch_full (tmp,pat,'/')) {
   1.320 +		if (!dummy_listed (stream,'/',tmp,LATT_NOSELECT,contents))
   1.321 +		  break;
   1.322 +	      }
   1.323 +				/* try again with trailing / */
   1.324 +	      else if (pmatch_full (path,pat,'/') &&
   1.325 +		       !dummy_listed (stream,'/',path,LATT_NOSELECT,contents))
   1.326 +		break;
   1.327 +	    }
   1.328 +	    if (dmatch (path,pat,'/') &&
   1.329 +		(level < (long) mail_parameters (NIL,GET_LISTMAXLEVEL,NIL)))
   1.330 +	      dummy_list_work (stream,path,pat,contents,level+1);
   1.331 +	    break;
   1.332 +	  case S_IFREG:		/* ordinary name */
   1.333 +	    /* Must use ctime for systems that don't update mtime properly */
   1.334 +	    if (pmatch_full (tmp,pat,'/') && compare_cstring (tmp,"INBOX"))
   1.335 +	      dummy_listed (stream,'/',tmp,LATT_NOINFERIORS +
   1.336 +			    ((sbuf.st_size && (sbuf.st_atime < sbuf.st_ctime))?
   1.337 +			     LATT_MARKED : LATT_UNMARKED),contents);
   1.338 +	    break;
   1.339 +	  }
   1.340 +	}
   1.341 +      }
   1.342 +    closedir (dp);		/* all done, flush directory */
   1.343 +  }
   1.344 +}
   1.345 +
   1.346 +/* Scan file for contents
   1.347 + * Accepts: driver to use
   1.348 + *	    file name
   1.349 + *	    desired contents
   1.350 + *	    length of contents
   1.351 + *	    size of file
   1.352 + * Returns: NIL if contents not found, T if found
   1.353 + */
   1.354 +
   1.355 +long scan_contents (DRIVER *dtb,char *name,char *contents,
   1.356 +		    unsigned long csiz,unsigned long fsiz)
   1.357 +{
   1.358 +  scancontents_t sc = dtb ?
   1.359 +    (scancontents_t) (*dtb->parameters) (GET_SCANCONTENTS,NIL) : NIL;
   1.360 +  return (*(sc ? sc : dummy_scan_contents)) (name,contents,csiz,fsiz);
   1.361 +}
   1.362 +
   1.363 +
   1.364 +/* Scan file for contents
   1.365 + * Accepts: file name
   1.366 + *	    desired contents
   1.367 + *	    length of contents
   1.368 + *	    size of file
   1.369 + * Returns: NIL if contents not found, T if found
   1.370 + */
   1.371 +
   1.372 +#define BUFSIZE 4*MAILTMPLEN
   1.373 +
   1.374 +long dummy_scan_contents (char *name,char *contents,unsigned long csiz,
   1.375 +			  unsigned long fsiz)
   1.376 +{
   1.377 +  int fd;
   1.378 +  unsigned long ssiz,bsiz;
   1.379 +  char *buf;
   1.380 +				/* forget it if can't select or open */
   1.381 +  if ((fd = open (name,O_RDONLY,NIL)) >= 0) {
   1.382 +				/* get buffer including slop */    
   1.383 +    buf = (char *) fs_get (BUFSIZE + (ssiz = 4 * ((csiz / 4) + 1)) + 1);
   1.384 +    memset (buf,'\0',ssiz);	/* no slop area the first time */
   1.385 +    while (fsiz) {		/* until end of file */
   1.386 +      read (fd,buf+ssiz,bsiz = min (fsiz,BUFSIZE));
   1.387 +      if (search ((unsigned char *) buf,bsiz+ssiz,
   1.388 +		  (unsigned char *) contents,csiz)) break;
   1.389 +      memcpy (buf,buf+BUFSIZE,ssiz);
   1.390 +      fsiz -= bsiz;		/* note that we read that much */
   1.391 +    }
   1.392 +    fs_give ((void **) &buf);	/* flush buffer */
   1.393 +    close (fd);			/* finished with file */
   1.394 +    if (fsiz) return T;		/* found */
   1.395 +  }
   1.396 +  return NIL;			/* not found */
   1.397 +}
   1.398 +
   1.399 +/* Mailbox found
   1.400 + * Accepts: MAIL stream
   1.401 + *	    hierarchy delimiter
   1.402 + *	    mailbox name
   1.403 + *	    attributes
   1.404 + *	    contents to search before calling mm_list()
   1.405 + * Returns: NIL if should abort hierarchy search, else T (currently always)
   1.406 + */
   1.407 +
   1.408 +long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
   1.409 +		   long attributes,char *contents)
   1.410 +{
   1.411 +  DRIVER *d;
   1.412 +  DIR *dp;
   1.413 +  struct direct *dr;
   1.414 +  dirfmttest_t dt;
   1.415 +  unsigned long csiz;
   1.416 +  struct stat sbuf;
   1.417 +  int nochild;
   1.418 +  char *s,tmp[MAILTMPLEN];
   1.419 +  if (!(attributes & LATT_NOINFERIORS) && mailboxdir (tmp,name,NIL) &&
   1.420 +      (dp = opendir (tmp))) {	/* if not \NoInferiors */
   1.421 +				/* locate dirfmttest if any */
   1.422 +    for (d = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
   1.423 +	 !dt && d; d = d->next)
   1.424 +      if (!(d->flags & DR_DISABLE) && (d->flags & DR_DIRFMT) &&
   1.425 +	  (*d->valid) (name))
   1.426 +	dt = mail_parameters ((*d->open) (NIL),GET_DIRFMTTEST,NIL);
   1.427 +				/* scan directory for children */
   1.428 +    for (nochild = T; nochild && (dr = readdir (dp)); )
   1.429 +      if ((!(dt && (*dt) (dr->d_name))) &&
   1.430 +	  ((dr->d_name[0] != '.') ||
   1.431 +	   (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
   1.432 +	    (dr->d_name[1] && ((dr->d_name[1] != '.') || dr->d_name[2])))))
   1.433 +	nochild = NIL;
   1.434 +    attributes |= nochild ? LATT_HASNOCHILDREN : LATT_HASCHILDREN;
   1.435 +    closedir (dp);		/* all done, flush directory */
   1.436 +  }
   1.437 +  d = NIL;			/* don't \NoSelect dir if it has a driver */
   1.438 +  if ((attributes & LATT_NOSELECT) && (d = mail_valid (NIL,name,NIL)) &&
   1.439 +      (d != &dummydriver)) attributes &= ~LATT_NOSELECT;
   1.440 +  if (!contents ||		/* notify main program */
   1.441 +      (!(attributes & LATT_NOSELECT) && (csiz = strlen (contents)) &&
   1.442 +       (s = mailboxfile (tmp,name)) &&
   1.443 +       (*s || (s = mail_parameters (NIL,GET_INBOXPATH,tmp))) &&
   1.444 +       !stat (s,&sbuf) && (d || (csiz <= sbuf.st_size)) &&
   1.445 +       SAFE_SCAN_CONTENTS (d,tmp,contents,csiz,sbuf.st_size)))
   1.446 +    mm_list (stream,delimiter,name,attributes);
   1.447 +  return T;
   1.448 +}
   1.449 +
   1.450 +/* Dummy create mailbox
   1.451 + * Accepts: mail stream
   1.452 + *	    mailbox name to create
   1.453 + * Returns: T on success, NIL on failure
   1.454 + */
   1.455 +
   1.456 +long dummy_create (MAILSTREAM *stream,char *mailbox)
   1.457 +{
   1.458 +  char *s,tmp[MAILTMPLEN];
   1.459 +  long ret = NIL;
   1.460 +				/* validate name */
   1.461 +  if (!(compare_cstring (mailbox,"INBOX") && (s = dummy_file (tmp,mailbox)))) {
   1.462 +    sprintf (tmp,"Can't create %.80s: invalid name",mailbox);
   1.463 +    MM_LOG (tmp,ERROR);
   1.464 +  }
   1.465 +				/* create the name, done if made directory */
   1.466 +  else if ((ret = dummy_create_path (stream,tmp,get_dir_protection(mailbox)))&&
   1.467 +	   (s = strrchr (s,'/')) && !s[1]) return T;
   1.468 +  return ret ? set_mbx_protections (mailbox,tmp) : NIL;
   1.469 +}
   1.470 +
   1.471 +/* Dummy create path
   1.472 + * Accepts: mail stream
   1.473 + *	    path name to create
   1.474 + *	    directory mode
   1.475 + * Returns: T on success, NIL on failure
   1.476 + */
   1.477 +
   1.478 +long dummy_create_path (MAILSTREAM *stream,char *path,long dirmode)
   1.479 +{
   1.480 +  struct stat sbuf;
   1.481 +  char c,*s,tmp[MAILTMPLEN];
   1.482 +  int fd;
   1.483 +  long ret = NIL;
   1.484 +  char *t = strrchr (path,'/');
   1.485 +  int wantdir = t && !t[1];
   1.486 +  int mask = umask (0);
   1.487 +  if (wantdir) *t = '\0';	/* flush trailing delimiter for directory */
   1.488 +  if (s = strrchr (path,'/')) {	/* found superior to this name? */
   1.489 +    c = *++s;			/* remember first character of inferior */
   1.490 +    *s = '\0';			/* tie off to get just superior */
   1.491 +				/* name doesn't exist, create it */
   1.492 +    if ((stat (path,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
   1.493 +	!dummy_create_path (stream,path,dirmode)) {
   1.494 +      umask (mask);		/* restore mask */
   1.495 +      return NIL;
   1.496 +    }
   1.497 +    *s = c;			/* restore full name */
   1.498 +  }
   1.499 +  if (wantdir) {		/* want to create directory? */
   1.500 +    ret = !mkdir (path,(int) dirmode);
   1.501 +    *t = '/';			/* restore directory delimiter */
   1.502 +  }
   1.503 +				/* create file */
   1.504 +  else if ((fd = open (path,O_WRONLY|O_CREAT|O_EXCL,
   1.505 +		       (long) mail_parameters(NIL,GET_MBXPROTECTION,NIL))) >=0)
   1.506 +    ret = !close (fd);
   1.507 +  if (!ret) {			/* error? */
   1.508 +    sprintf (tmp,"Can't create mailbox node %.80s: %.80s",path,strerror (errno));
   1.509 +    MM_LOG (tmp,ERROR);
   1.510 +  }
   1.511 +  umask (mask);			/* restore mask */
   1.512 +  return ret;			/* return status */
   1.513 +}
   1.514 +
   1.515 +/* Dummy delete mailbox
   1.516 + * Accepts: mail stream
   1.517 + *	    mailbox name to delete
   1.518 + * Returns: T on success, NIL on failure
   1.519 + */
   1.520 +
   1.521 +long dummy_delete (MAILSTREAM *stream,char *mailbox)
   1.522 +{
   1.523 +  struct stat sbuf;
   1.524 +  char *s,tmp[MAILTMPLEN];
   1.525 +  if (!(s = dummy_file (tmp,mailbox))) {
   1.526 +    sprintf (tmp,"Can't delete - invalid name: %.80s",s);
   1.527 +    MM_LOG (tmp,ERROR);
   1.528 +  }
   1.529 +				/* no trailing / (workaround BSD kernel bug) */
   1.530 +  if ((s = strrchr (tmp,'/')) && !s[1]) *s = '\0';
   1.531 +  if (stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) == S_IFDIR) ?
   1.532 +      rmdir (tmp) : unlink (tmp)) {
   1.533 +    sprintf (tmp,"Can't delete mailbox %.80s: %.80s",mailbox,strerror (errno));
   1.534 +    MM_LOG (tmp,ERROR);
   1.535 +    return NIL;
   1.536 +  }
   1.537 +  return T;			/* return success */
   1.538 +}
   1.539 +
   1.540 +/* Mail rename mailbox
   1.541 + * Accepts: mail stream
   1.542 + *	    old mailbox name
   1.543 + *	    new mailbox name
   1.544 + * Returns: T on success, NIL on failure
   1.545 + */
   1.546 +
   1.547 +long dummy_rename (MAILSTREAM *stream,char *old,char *newname)
   1.548 +{
   1.549 +  struct stat sbuf;
   1.550 +  char c,*s,tmp[MAILTMPLEN],mbx[MAILTMPLEN],oldname[MAILTMPLEN];
   1.551 +				/* no trailing / allowed */
   1.552 +  if (!dummy_file (oldname,old) || !(s = dummy_file (mbx,newname)) ||
   1.553 +      stat (oldname,&sbuf) || ((s = strrchr (s,'/')) && !s[1] &&
   1.554 +			       ((sbuf.st_mode & S_IFMT) != S_IFDIR))) {
   1.555 +    sprintf (mbx,"Can't rename %.80s to %.80s: invalid name",old,newname);
   1.556 +    MM_LOG (mbx,ERROR);
   1.557 +    return NIL;
   1.558 +  }
   1.559 +  if (s) {			/* found a directory delimiter? */
   1.560 +    if (!s[1]) *s = '\0';	/* ignore trailing delimiter */
   1.561 +    else {			/* found superior to destination name? */
   1.562 +      c = *++s;			/* remember first character of inferior */
   1.563 +      *s = '\0';		/* tie off to get just superior */
   1.564 +				/* name doesn't exist, create it */
   1.565 +      if ((stat (mbx,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
   1.566 +	  !dummy_create (stream,mbx)) return NIL;
   1.567 +      *s = c;			/* restore full name */
   1.568 +    }
   1.569 +  }
   1.570 +				/* rename of non-ex INBOX creates dest */
   1.571 +  if (!compare_cstring (old,"INBOX") && stat (oldname,&sbuf))
   1.572 +    return dummy_create (NIL,mbx);
   1.573 +  if (rename (oldname,mbx)) {
   1.574 +    sprintf (tmp,"Can't rename mailbox %.80s to %.80s: %.80s",old,newname,
   1.575 +	     strerror (errno));
   1.576 +    MM_LOG (tmp,ERROR);
   1.577 +    return NIL;
   1.578 +  }
   1.579 +  return T;			/* return success */
   1.580 +}
   1.581 +
   1.582 +/* Dummy open
   1.583 + * Accepts: stream to open
   1.584 + * Returns: stream on success, NIL on failure
   1.585 + */
   1.586 +
   1.587 +MAILSTREAM *dummy_open (MAILSTREAM *stream)
   1.588 +{
   1.589 +  int fd;
   1.590 +  char err[MAILTMPLEN],tmp[MAILTMPLEN];
   1.591 +  struct stat sbuf;
   1.592 +				/* OP_PROTOTYPE call */
   1.593 +  if (!stream) return &dummyproto;
   1.594 +  err[0] = '\0';		/* no error message yet */
   1.595 +				/* can we open the file? */
   1.596 +  if (!dummy_file (tmp,stream->mailbox))
   1.597 +    sprintf (err,"Can't open this name: %.80s",stream->mailbox);
   1.598 +  else if ((fd = open (tmp,O_RDONLY,NIL)) < 0) {
   1.599 +				/* no, error unless INBOX */
   1.600 +    if (compare_cstring (stream->mailbox,"INBOX"))
   1.601 +      sprintf (err,"%.80s: %.80s",strerror (errno),stream->mailbox);
   1.602 +  }
   1.603 +  else {			/* file had better be empty then */
   1.604 +    fstat (fd,&sbuf);		/* sniff at its size */
   1.605 +    close (fd);
   1.606 +    if ((sbuf.st_mode & S_IFMT) != S_IFREG)
   1.607 +      sprintf (err,"Can't open %.80s: not a selectable mailbox",
   1.608 +	       stream->mailbox);
   1.609 +    else if (sbuf.st_size)	/* bogus format if non-empty */
   1.610 +      sprintf (err,"Can't open %.80s (file %.80s): not in valid mailbox format",
   1.611 +	       stream->mailbox,tmp);
   1.612 +  }
   1.613 +  if (err[0]) {			/* if an error happened */
   1.614 +    MM_LOG (err,stream->silent ? WARN : ERROR);
   1.615 +    return NIL;
   1.616 +  }
   1.617 +  else if (!stream->silent) {	/* only if silence not requested */
   1.618 +    mail_exists (stream,0);	/* say there are 0 messages */
   1.619 +    mail_recent (stream,0);	/* and certainly no recent ones! */
   1.620 +    stream->uid_validity = time (0);
   1.621 +  }
   1.622 +  stream->inbox = T;		/* note that it's an INBOX */
   1.623 +  return stream;		/* return success */
   1.624 +}
   1.625 +
   1.626 +
   1.627 +/* Dummy close
   1.628 + * Accepts: MAIL stream
   1.629 + *	    options
   1.630 + */
   1.631 +
   1.632 +void dummy_close (MAILSTREAM *stream,long options)
   1.633 +{
   1.634 +				/* return silently */
   1.635 +}
   1.636 +
   1.637 +/* Dummy ping mailbox
   1.638 + * Accepts: MAIL stream
   1.639 + * Returns: T if stream alive, else NIL
   1.640 + */
   1.641 +
   1.642 +long dummy_ping (MAILSTREAM *stream)
   1.643 +{
   1.644 +  MAILSTREAM *test;
   1.645 +  if (time (0) >=		/* time to do another test? */
   1.646 +      ((time_t) (stream->gensym +
   1.647 +		 (long) mail_parameters (NIL,GET_SNARFINTERVAL,NIL)))) {
   1.648 +				/* has mailbox format changed? */
   1.649 +    if ((test = mail_open (NIL,stream->mailbox,OP_PROTOTYPE)) &&
   1.650 +	(test->dtb != stream->dtb) &&
   1.651 +	(test = mail_open (NIL,stream->mailbox,NIL))) {
   1.652 +				/* preserve some resources */
   1.653 +      test->original_mailbox = stream->original_mailbox;
   1.654 +      stream->original_mailbox = NIL;
   1.655 +      test->sparep = stream->sparep;
   1.656 +      stream->sparep = NIL;
   1.657 +      test->sequence = stream->sequence;
   1.658 +      mail_close ((MAILSTREAM *) /* flush resources used by dummy stream */
   1.659 +		  memcpy (fs_get (sizeof (MAILSTREAM)),stream,
   1.660 +			  sizeof (MAILSTREAM)));
   1.661 +				/* swap the streams */
   1.662 +      memcpy (stream,test,sizeof (MAILSTREAM));
   1.663 +      fs_give ((void **) &test);/* flush test now that copied */
   1.664 +				/* make sure application knows */
   1.665 +      mail_exists (stream,stream->recent = stream->nmsgs);
   1.666 +    }
   1.667 +				/* still hasn't changed */
   1.668 +    else stream->gensym = time (0);
   1.669 +  }
   1.670 +  return T;
   1.671 +}
   1.672 +
   1.673 +
   1.674 +/* Dummy check mailbox
   1.675 + * Accepts: MAIL stream
   1.676 + * No-op for readonly files, since read/writer can expunge it from under us!
   1.677 + */
   1.678 +
   1.679 +void dummy_check (MAILSTREAM *stream)
   1.680 +{
   1.681 +  dummy_ping (stream);		/* invoke ping */
   1.682 +}
   1.683 +
   1.684 +
   1.685 +/* Dummy expunge mailbox
   1.686 + * Accepts: MAIL stream
   1.687 + *	    sequence to expunge if non-NIL
   1.688 + *	    expunge options
   1.689 + * Returns: T, always
   1.690 + */
   1.691 +
   1.692 +long dummy_expunge (MAILSTREAM *stream,char *sequence,long options)
   1.693 +{
   1.694 +  return LONGT;
   1.695 +}
   1.696 +
   1.697 +/* Dummy copy message(s)
   1.698 + * Accepts: MAIL stream
   1.699 + *	    sequence
   1.700 + *	    destination mailbox
   1.701 + *	    options
   1.702 + * Returns: T if copy successful, else NIL
   1.703 + */
   1.704 +
   1.705 +long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
   1.706 +{
   1.707 +  if ((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
   1.708 +      mail_sequence (stream,sequence)) fatal ("Impossible dummy_copy");
   1.709 +  return NIL;
   1.710 +}
   1.711 +
   1.712 +
   1.713 +/* Dummy append message string
   1.714 + * Accepts: mail stream
   1.715 + *	    destination mailbox
   1.716 + *	    append callback function
   1.717 + *	    data for callback
   1.718 + * Returns: T on success, NIL on failure
   1.719 + */
   1.720 +
   1.721 +long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
   1.722 +{
   1.723 +  struct stat sbuf;
   1.724 +  int fd = -1;
   1.725 +  int e;
   1.726 +  char tmp[MAILTMPLEN];
   1.727 +  MAILSTREAM *ts = default_proto (T);
   1.728 +				/* append to INBOX? */
   1.729 +  if (!compare_cstring (mailbox,"INBOX")) {
   1.730 +				/* yes, if no empty proto try creating */
   1.731 +    if (!ts && !(*(ts = default_proto (NIL))->dtb->create) (ts,"INBOX"))
   1.732 +      ts = NIL;
   1.733 +  }
   1.734 +  else if (dummy_file (tmp,mailbox) && ((fd = open (tmp,O_RDONLY,NIL)) < 0)) {
   1.735 +    if ((e = errno) == ENOENT) /* failed, was it no such file? */
   1.736 +      MM_NOTIFY (stream,"[TRYCREATE] Must create mailbox before append",NIL);
   1.737 +    sprintf (tmp,"%.80s: %.80s",strerror (e),mailbox);
   1.738 +    MM_LOG (tmp,ERROR);		/* pass up error */
   1.739 +    return NIL;			/* always fails */
   1.740 +  }
   1.741 +  else if (fd >= 0) {		/* found file? */
   1.742 +    fstat (fd,&sbuf);		/* get its size */
   1.743 +    close (fd);			/* toss out the fd */
   1.744 +    if (sbuf.st_size) ts = NIL; /* non-empty file? */
   1.745 +  }
   1.746 +  if (ts) return (*ts->dtb->append) (stream,mailbox,af,data);
   1.747 +  sprintf (tmp,"Indeterminate mailbox format: %.80s",mailbox);
   1.748 +  MM_LOG (tmp,ERROR);
   1.749 +  return NIL;
   1.750 +}
   1.751 +
   1.752 +/* Dummy mail generate file string
   1.753 + * Accepts: temporary buffer to write into
   1.754 + *	    mailbox name string
   1.755 + * Returns: local file string or NIL if failure
   1.756 + */
   1.757 +
   1.758 +char *dummy_file (char *dst,char *name)
   1.759 +{
   1.760 +  char *s = mailboxfile (dst,name);
   1.761 +				/* return our standard inbox */
   1.762 +  return (s && !*s) ? strcpy (dst,sysinbox ()) : s;
   1.763 +}
   1.764 +
   1.765 +
   1.766 +/* Dummy canonicalize name
   1.767 + * Accepts: buffer to write name
   1.768 + *	    reference
   1.769 + *	    pattern
   1.770 + * Returns: T if success, NIL if failure
   1.771 + */
   1.772 +
   1.773 +long dummy_canonicalize (char *tmp,char *ref,char *pat)
   1.774 +{
   1.775 +  unsigned long i;
   1.776 +  char *s;
   1.777 +  if (ref) {			/* preliminary reference check */
   1.778 +    if (*ref == '{') return NIL;/* remote reference not allowed */
   1.779 +    else if (!*ref) ref = NIL;	/* treat empty reference as no reference */
   1.780 +  }
   1.781 +  switch (*pat) {
   1.782 +  case '#':			/* namespace name */
   1.783 +    if (mailboxfile (tmp,pat)) strcpy (tmp,pat);
   1.784 +    else return NIL;		/* unknown namespace */
   1.785 +    break;
   1.786 +  case '{':			/* remote names not allowed */
   1.787 +    return NIL;
   1.788 +  case '/':			/* rooted name */
   1.789 +  case '~':			/* home directory name */
   1.790 +    if (!ref || (*ref != '#')) {/* non-namespace reference? */
   1.791 +      strcpy (tmp,pat);		/* yes, ignore */
   1.792 +      break;
   1.793 +    }
   1.794 +				/* fall through */
   1.795 +  default:			/* apply reference for all other names */
   1.796 +    if (!ref) strcpy (tmp,pat);	/* just copy if no namespace */
   1.797 +    else if ((*ref != '#') || mailboxfile (tmp,ref)) {
   1.798 +				/* wants root of name? */
   1.799 +      if (*pat == '/') strcpy (strchr (strcpy (tmp,ref),'/'),pat);
   1.800 +				/* otherwise just append */
   1.801 +      else sprintf (tmp,"%s%s",ref,pat);
   1.802 +    }
   1.803 +    else return NIL;		/* unknown namespace */
   1.804 +  }
   1.805 +				/* count wildcards */
   1.806 +  for (i = 0, s = tmp; *s; *s++) if ((*s == '*') || (*s == '%')) ++i;
   1.807 +  if (i > MAXWILDCARDS) {	/* ridiculous wildcarding? */
   1.808 +    MM_LOG ("Excessive wildcards in LIST/LSUB",ERROR);
   1.809 +    return NIL;
   1.810 +  }
   1.811 +  return T;
   1.812 +}