imapext-2007

annotate src/osdep/dos/mtxdos.c @ 0:ada5e610ab86

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imap-2007e
author yuuji@gentei.org
date Mon, 14 Sep 2009 15:17:45 +0900
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yuuji@0 1 /* ========================================================================
yuuji@0 2 * Copyright 1988-2006 University of Washington
yuuji@0 3 *
yuuji@0 4 * Licensed under the Apache License, Version 2.0 (the "License");
yuuji@0 5 * you may not use this file except in compliance with the License.
yuuji@0 6 * You may obtain a copy of the License at
yuuji@0 7 *
yuuji@0 8 * http://www.apache.org/licenses/LICENSE-2.0
yuuji@0 9 *
yuuji@0 10 *
yuuji@0 11 * ========================================================================
yuuji@0 12 */
yuuji@0 13
yuuji@0 14 /*
yuuji@0 15 * Program: MTX mail routines
yuuji@0 16 *
yuuji@0 17 * Author: Mark Crispin
yuuji@0 18 * Networks and Distributed Computing
yuuji@0 19 * Computing & Communications
yuuji@0 20 * University of Washington
yuuji@0 21 * Administration Building, AG-44
yuuji@0 22 * Seattle, WA 98195
yuuji@0 23 * Internet: MRC@CAC.Washington.EDU
yuuji@0 24 *
yuuji@0 25 * Date: 24 June 1992
yuuji@0 26 * Last Edited: 30 August 2006
yuuji@0 27 */
yuuji@0 28
yuuji@0 29
yuuji@0 30 #include <ctype.h>
yuuji@0 31 #include <errno.h>
yuuji@0 32 #include <fcntl.h>
yuuji@0 33 #include "mail.h"
yuuji@0 34 #include "osdep.h"
yuuji@0 35 #include <time.h>
yuuji@0 36 #include <sys\stat.h>
yuuji@0 37 #include <dos.h>
yuuji@0 38 #include "rfc822.h"
yuuji@0 39 #include "dummy.h"
yuuji@0 40 #include "misc.h"
yuuji@0 41 #include "fdstring.h"
yuuji@0 42
yuuji@0 43 /* MTX I/O stream local data */
yuuji@0 44
yuuji@0 45 typedef struct mtx_local {
yuuji@0 46 int fd; /* file descriptor for I/O */
yuuji@0 47 off_t filesize; /* file size parsed */
yuuji@0 48 unsigned char *buf; /* temporary buffer */
yuuji@0 49 } MTXLOCAL;
yuuji@0 50
yuuji@0 51
yuuji@0 52 /* Drive-dependent data passed to init method */
yuuji@0 53
yuuji@0 54 typedef struct mtx_data {
yuuji@0 55 int fd; /* file data */
yuuji@0 56 unsigned long pos; /* initial position */
yuuji@0 57 } MTXDATA;
yuuji@0 58
yuuji@0 59
yuuji@0 60 /* Convenient access to local data */
yuuji@0 61
yuuji@0 62 #define LOCAL ((MTXLOCAL *) stream->local)
yuuji@0 63
yuuji@0 64
yuuji@0 65 /* Function prototypes */
yuuji@0 66
yuuji@0 67 DRIVER *mtx_valid (char *name);
yuuji@0 68 long mtx_isvalid (char *name,char *tmp);
yuuji@0 69 void *mtx_parameters (long function,void *value);
yuuji@0 70 void mtx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents);
yuuji@0 71 void mtx_list (MAILSTREAM *stream,char *ref,char *pat);
yuuji@0 72 void mtx_lsub (MAILSTREAM *stream,char *ref,char *pat);
yuuji@0 73 long mtx_create (MAILSTREAM *stream,char *mailbox);
yuuji@0 74 long mtx_delete (MAILSTREAM *stream,char *mailbox);
yuuji@0 75 long mtx_rename (MAILSTREAM *stream,char *old,char *newname);
yuuji@0 76 MAILSTREAM *mtx_open (MAILSTREAM *stream);
yuuji@0 77 void mtx_close (MAILSTREAM *stream,long options);
yuuji@0 78 char *mtx_header (MAILSTREAM *stream,unsigned long msgno,
yuuji@0 79 unsigned long *length,long flags);
yuuji@0 80 long mtx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags);
yuuji@0 81 void mtx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt);
yuuji@0 82 long mtx_ping (MAILSTREAM *stream);
yuuji@0 83 void mtx_check (MAILSTREAM *stream);
yuuji@0 84 long mtx_expunge (MAILSTREAM *stream,char *sequence,long options);
yuuji@0 85 long mtx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
yuuji@0 86 long mtx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
yuuji@0 87
yuuji@0 88 char *mtx_file (char *dst,char *name);
yuuji@0 89 long mtx_badname (char *tmp,char *s);
yuuji@0 90 long mtx_parse (MAILSTREAM *stream);
yuuji@0 91 void mtx_update_status (MAILSTREAM *stream,unsigned long msgno);
yuuji@0 92 unsigned long mtx_hdrpos (MAILSTREAM *stream,unsigned long msgno,
yuuji@0 93 unsigned long *size);
yuuji@0 94
yuuji@0 95 /* MTX mail routines */
yuuji@0 96
yuuji@0 97
yuuji@0 98 /* Driver dispatch used by MAIL */
yuuji@0 99
yuuji@0 100 DRIVER mtxdriver = {
yuuji@0 101 "mtx", /* driver name */
yuuji@0 102 /* driver flags */
yuuji@0 103 DR_LOCAL|DR_MAIL|DR_LOWMEM|DR_CRLF|DR_NOSTICKY,
yuuji@0 104 (DRIVER *) NIL, /* next driver */
yuuji@0 105 mtx_valid, /* mailbox is valid for us */
yuuji@0 106 mtx_parameters, /* manipulate parameters */
yuuji@0 107 mtx_scan, /* scan mailboxes */
yuuji@0 108 mtx_list, /* list mailboxes */
yuuji@0 109 mtx_lsub, /* list subscribed mailboxes */
yuuji@0 110 NIL, /* subscribe to mailbox */
yuuji@0 111 NIL, /* unsubscribe from mailbox */
yuuji@0 112 mtx_create, /* create mailbox */
yuuji@0 113 mtx_delete, /* delete mailbox */
yuuji@0 114 mtx_rename, /* rename mailbox */
yuuji@0 115 mail_status_default, /* status of mailbox */
yuuji@0 116 mtx_open, /* open mailbox */
yuuji@0 117 mtx_close, /* close mailbox */
yuuji@0 118 NIL, /* fetch message "fast" attributes */
yuuji@0 119 NIL, /* fetch message flags */
yuuji@0 120 NIL, /* fetch overview */
yuuji@0 121 NIL, /* fetch message envelopes */
yuuji@0 122 mtx_header, /* fetch message header */
yuuji@0 123 mtx_text, /* fetch message body */
yuuji@0 124 NIL, /* fetch partial message text */
yuuji@0 125 NIL, /* unique identifier */
yuuji@0 126 NIL, /* message number */
yuuji@0 127 NIL, /* modify flags */
yuuji@0 128 mtx_flagmsg, /* per-message modify flags */
yuuji@0 129 NIL, /* search for message based on criteria */
yuuji@0 130 NIL, /* sort messages */
yuuji@0 131 NIL, /* thread messages */
yuuji@0 132 mtx_ping, /* ping mailbox to see if still alive */
yuuji@0 133 mtx_check, /* check for new messages */
yuuji@0 134 mtx_expunge, /* expunge deleted messages */
yuuji@0 135 mtx_copy, /* copy messages to another mailbox */
yuuji@0 136 mtx_append, /* append string message to mailbox */
yuuji@0 137 NIL /* garbage collect stream */
yuuji@0 138 };
yuuji@0 139
yuuji@0 140 /* prototype stream */
yuuji@0 141 MAILSTREAM mtxproto = {&mtxdriver};
yuuji@0 142
yuuji@0 143 /* MTX mail validate mailbox
yuuji@0 144 * Accepts: mailbox name
yuuji@0 145 * Returns: our driver if name is valid, NIL otherwise
yuuji@0 146 */
yuuji@0 147
yuuji@0 148 DRIVER *mtx_valid (char *name)
yuuji@0 149 {
yuuji@0 150 char tmp[MAILTMPLEN];
yuuji@0 151 return mtx_isvalid (name,tmp) ? &mtxdriver : (DRIVER *) NIL;
yuuji@0 152 }
yuuji@0 153
yuuji@0 154
yuuji@0 155 /* MTX mail test for valid mailbox
yuuji@0 156 * Accepts: mailbox name
yuuji@0 157 * Returns: T if valid, NIL otherwise
yuuji@0 158 */
yuuji@0 159
yuuji@0 160 long mtx_isvalid (char *name,char *tmp)
yuuji@0 161 {
yuuji@0 162 int fd;
yuuji@0 163 long ret = NIL;
yuuji@0 164 char *s;
yuuji@0 165 struct stat sbuf;
yuuji@0 166 errno = EINVAL; /* assume invalid argument */
yuuji@0 167 /* if file, get its status */
yuuji@0 168 if ((*name != '{') && mailboxfile (tmp,name) && !stat (tmp,&sbuf)) {
yuuji@0 169 if (!sbuf.st_size)errno = 0;/* empty file */
yuuji@0 170 else if ((fd = open (tmp,O_BINARY|O_RDONLY,NIL)) >= 0) {
yuuji@0 171 memset (tmp,'\0',MAILTMPLEN);
yuuji@0 172 if ((read (fd,tmp,64) >= 0) && (s = strchr (tmp,'\015')) &&
yuuji@0 173 (s[1] == '\012')) { /* valid format? */
yuuji@0 174 *s = '\0'; /* tie off header */
yuuji@0 175 /* must begin with dd-mmm-yy" */
yuuji@0 176 ret = (((tmp[2] == '-' && tmp[6] == '-') ||
yuuji@0 177 (tmp[1] == '-' && tmp[5] == '-')) &&
yuuji@0 178 (s = strchr (tmp+18,',')) && strchr (s+2,';')) ? T : NIL;
yuuji@0 179 }
yuuji@0 180 else errno = -1; /* bogus format */
yuuji@0 181 close (fd); /* close the file */
yuuji@0 182 }
yuuji@0 183 }
yuuji@0 184 /* in case INBOX but not mtx format */
yuuji@0 185 else if ((errno == ENOENT) && ((name[0] == 'I') || (name[0] == 'i')) &&
yuuji@0 186 ((name[1] == 'N') || (name[1] == 'n')) &&
yuuji@0 187 ((name[2] == 'B') || (name[2] == 'b')) &&
yuuji@0 188 ((name[3] == 'O') || (name[3] == 'o')) &&
yuuji@0 189 ((name[4] == 'X') || (name[4] == 'x')) && !name[5]) errno = -1;
yuuji@0 190 return ret; /* return what we should */
yuuji@0 191 }
yuuji@0 192
yuuji@0 193
yuuji@0 194 /* MTX manipulate driver parameters
yuuji@0 195 * Accepts: function code
yuuji@0 196 * function-dependent value
yuuji@0 197 * Returns: function-dependent return value
yuuji@0 198 */
yuuji@0 199
yuuji@0 200 void *mtx_parameters (long function,void *value)
yuuji@0 201 {
yuuji@0 202 return NIL;
yuuji@0 203 }
yuuji@0 204
yuuji@0 205 /* MTX mail scan mailboxes
yuuji@0 206 * Accepts: mail stream
yuuji@0 207 * reference
yuuji@0 208 * pattern to search
yuuji@0 209 * string to scan
yuuji@0 210 */
yuuji@0 211
yuuji@0 212 void mtx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
yuuji@0 213 {
yuuji@0 214 if (stream) dummy_scan (NIL,ref,pat,contents);
yuuji@0 215 }
yuuji@0 216
yuuji@0 217
yuuji@0 218 /* MTX mail list mailboxes
yuuji@0 219 * Accepts: mail stream
yuuji@0 220 * reference
yuuji@0 221 * pattern to search
yuuji@0 222 */
yuuji@0 223
yuuji@0 224 void mtx_list (MAILSTREAM *stream,char *ref,char *pat)
yuuji@0 225 {
yuuji@0 226 if (stream) dummy_list (stream,ref,pat);
yuuji@0 227 }
yuuji@0 228
yuuji@0 229
yuuji@0 230 /* MTX mail list subscribed mailboxes
yuuji@0 231 * Accepts: mail stream
yuuji@0 232 * reference
yuuji@0 233 * pattern to search
yuuji@0 234 */
yuuji@0 235
yuuji@0 236 void mtx_lsub (MAILSTREAM *stream,char *ref,char *pat)
yuuji@0 237 {
yuuji@0 238 if (stream) dummy_lsub (stream,ref,pat);
yuuji@0 239 }
yuuji@0 240
yuuji@0 241 /* MTX mail create mailbox
yuuji@0 242 * Accepts: MAIL stream
yuuji@0 243 * mailbox name to create
yuuji@0 244 * Returns: T on success, NIL on failure
yuuji@0 245 */
yuuji@0 246
yuuji@0 247 long mtx_create (MAILSTREAM *stream,char *mailbox)
yuuji@0 248 {
yuuji@0 249 return dummy_create (stream,mailbox);
yuuji@0 250 }
yuuji@0 251
yuuji@0 252
yuuji@0 253 /* MTX mail delete mailbox
yuuji@0 254 * Accepts: MAIL stream
yuuji@0 255 * mailbox name to delete
yuuji@0 256 * Returns: T on success, NIL on failure
yuuji@0 257 */
yuuji@0 258
yuuji@0 259 long mtx_delete (MAILSTREAM *stream,char *mailbox)
yuuji@0 260 {
yuuji@0 261 return dummy_delete (stream,mailbox);
yuuji@0 262 }
yuuji@0 263
yuuji@0 264
yuuji@0 265 /* MTX mail rename mailbox
yuuji@0 266 * Accepts: MAIL stream
yuuji@0 267 * old mailbox name
yuuji@0 268 * new mailbox name (or NIL for delete)
yuuji@0 269 * Returns: T on success, NIL on failure
yuuji@0 270 */
yuuji@0 271
yuuji@0 272 long mtx_rename (MAILSTREAM *stream,char *old,char *newname)
yuuji@0 273 {
yuuji@0 274 return dummy_rename (stream,old,newname);
yuuji@0 275 }
yuuji@0 276
yuuji@0 277 /* MTX mail open
yuuji@0 278 * Accepts: stream to open
yuuji@0 279 * Returns: stream on success, NIL on failure
yuuji@0 280 */
yuuji@0 281
yuuji@0 282 MAILSTREAM *mtx_open (MAILSTREAM *stream)
yuuji@0 283 {
yuuji@0 284 long i;
yuuji@0 285 int fd;
yuuji@0 286 char *s;
yuuji@0 287 char tmp[MAILTMPLEN];
yuuji@0 288 /* return prototype for OP_PROTOTYPE call */
yuuji@0 289 if (!stream) return &mtxproto;
yuuji@0 290 if (stream->local) fatal ("mtx recycle stream");
yuuji@0 291 if (!mailboxfile (tmp,stream->mailbox))
yuuji@0 292 return (MAILSTREAM *) mtx_badname (tmp,stream->mailbox);
yuuji@0 293 /* open, possibly creating INBOX */
yuuji@0 294 if (((fd = open (tmp,O_BINARY|(stream->rdonly ? O_RDONLY:O_RDWR),NIL)) < 0)&&
yuuji@0 295 (compare_cstring (stream->mailbox,"INBOX") ||
yuuji@0 296 ((fd = open (tmp,O_BINARY|O_RDWR|O_CREAT|O_EXCL,S_IREAD|S_IWRITE))<0))){
yuuji@0 297 sprintf (tmp,"Can't open mailbox: %s",strerror (errno));
yuuji@0 298 mm_log (tmp,ERROR);
yuuji@0 299 return NIL;
yuuji@0 300 }
yuuji@0 301 stream->local = fs_get (sizeof (MTXLOCAL));
yuuji@0 302 /* canonicalize the stream mailbox name */
yuuji@0 303 fs_give ((void **) &stream->mailbox);
yuuji@0 304 if (s = strchr ((s = strrchr (tmp,'\\')) ? s : tmp,'.')) *s = '\0';
yuuji@0 305 stream->mailbox = cpystr (tmp);
yuuji@0 306 LOCAL->fd = fd; /* note the file */
yuuji@0 307 LOCAL->filesize = 0; /* initialize parsed file size */
yuuji@0 308 LOCAL->buf = NIL; /* initially no local buffer */
yuuji@0 309 stream->sequence++; /* bump sequence number */
yuuji@0 310 stream->uid_validity = time (0);
yuuji@0 311 /* parse mailbox */
yuuji@0 312 stream->nmsgs = stream->recent = 0;
yuuji@0 313 if (!mtx_ping (stream)) return NIL;
yuuji@0 314 if (!stream->nmsgs) mm_log ("Mailbox is empty",(long) NIL);
yuuji@0 315 stream->perm_seen = stream->perm_deleted =
yuuji@0 316 stream->perm_flagged = stream->perm_answered = stream->perm_draft =
yuuji@0 317 stream->rdonly ? NIL : T;
yuuji@0 318 stream->perm_user_flags = stream->rdonly ? NIL : 0xffffffff;
yuuji@0 319 return stream; /* return stream to caller */
yuuji@0 320 }
yuuji@0 321
yuuji@0 322 /* MTX mail close
yuuji@0 323 * Accepts: MAIL stream
yuuji@0 324 * close options
yuuji@0 325 */
yuuji@0 326
yuuji@0 327 void mtx_close (MAILSTREAM *stream,long options)
yuuji@0 328 {
yuuji@0 329 if (stream && LOCAL) { /* only if a file is open */
yuuji@0 330 int silent = stream->silent;
yuuji@0 331 stream->silent = T;
yuuji@0 332 if (options & CL_EXPUNGE) mtx_expunge (stream,NIL,NIL);
yuuji@0 333 close (LOCAL->fd); /* close the local file */
yuuji@0 334 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
yuuji@0 335 /* nuke the local data */
yuuji@0 336 fs_give ((void **) &stream->local);
yuuji@0 337 stream->dtb = NIL; /* log out the DTB */
yuuji@0 338 }
yuuji@0 339 }
yuuji@0 340
yuuji@0 341 /* MTX mail fetch message header
yuuji@0 342 * Accepts: MAIL stream
yuuji@0 343 * message # to fetch
yuuji@0 344 * pointer to returned header text length
yuuji@0 345 * option flags
yuuji@0 346 * Returns: message header in RFC822 format
yuuji@0 347 */
yuuji@0 348
yuuji@0 349 char *mtx_header (MAILSTREAM *stream,unsigned long msgno,unsigned long *length,
yuuji@0 350 long flags)
yuuji@0 351 {
yuuji@0 352 *length = 0; /* default to empty */
yuuji@0 353 if (flags & FT_UID) return "";/* UID call "impossible" */
yuuji@0 354 /* get to header position */
yuuji@0 355 lseek (LOCAL->fd,mtx_hdrpos (stream,msgno,length),L_SET);
yuuji@0 356 /* is buffer big enough? */
yuuji@0 357 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
yuuji@0 358 LOCAL->buf = (char *) fs_get ((size_t) *length + 1);
yuuji@0 359 LOCAL->buf[*length] = '\0'; /* tie off string */
yuuji@0 360 /* slurp the data */
yuuji@0 361 read (LOCAL->fd,LOCAL->buf,(size_t) *length);
yuuji@0 362 return LOCAL->buf;
yuuji@0 363 }
yuuji@0 364
yuuji@0 365
yuuji@0 366 /* MTX mail fetch message text (body only)
yuuji@0 367 * Accepts: MAIL stream
yuuji@0 368 * message # to fetch
yuuji@0 369 * pointer to returned header text length
yuuji@0 370 * option flags
yuuji@0 371 * Returns: T, always
yuuji@0 372 */
yuuji@0 373
yuuji@0 374 long mtx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags)
yuuji@0 375 {
yuuji@0 376 MESSAGECACHE *elt;
yuuji@0 377 FDDATA d;
yuuji@0 378 unsigned long hdrsize,hdrpos;
yuuji@0 379 /* UID call "impossible" */
yuuji@0 380 if (flags & FT_UID) return NIL;
yuuji@0 381 elt = mail_elt (stream,msgno);/* if message not seen */
yuuji@0 382 if (elt->seen && !(flags & FT_PEEK)) {
yuuji@0 383 elt->seen = T; /* mark message as seen */
yuuji@0 384 /* recalculate status */
yuuji@0 385 mtx_update_status (stream,msgno);
yuuji@0 386 mm_flags (stream,msgno);
yuuji@0 387 }
yuuji@0 388 /* get location of text data */
yuuji@0 389 hdrpos = mtx_hdrpos (stream,msgno,&hdrsize);
yuuji@0 390 d.fd = LOCAL->fd; /* set initial stringstruct */
yuuji@0 391 d.pos = hdrpos + hdrsize;
yuuji@0 392 /* flush old buffer */
yuuji@0 393 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
yuuji@0 394 d.chunk = LOCAL->buf = (char *) fs_get ((size_t) d.chunksize = CHUNKSIZE);
yuuji@0 395 INIT (bs,fd_string,(void *) &d,elt->rfc822_size - hdrsize);
yuuji@0 396 return T; /* success */
yuuji@0 397 }
yuuji@0 398
yuuji@0 399 /* MTX mail per-message modify flags
yuuji@0 400 * Accepts: MAIL stream
yuuji@0 401 * message cache element
yuuji@0 402 */
yuuji@0 403
yuuji@0 404 void mtx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt)
yuuji@0 405 {
yuuji@0 406 /* recalculate status */
yuuji@0 407 mtx_update_status (stream,elt->msgno);
yuuji@0 408 }
yuuji@0 409
yuuji@0 410
yuuji@0 411 /* MTX mail ping mailbox
yuuji@0 412 * Accepts: MAIL stream
yuuji@0 413 * Returns: T if stream still alive, NIL if not
yuuji@0 414 */
yuuji@0 415
yuuji@0 416 long mtx_ping (MAILSTREAM *stream)
yuuji@0 417 {
yuuji@0 418 /* punt if stream no longer alive */
yuuji@0 419 if (!(stream && LOCAL)) return NIL;
yuuji@0 420 /* parse mailbox, punt if parse dies */
yuuji@0 421 return (mtx_parse (stream)) ? T : NIL;
yuuji@0 422 }
yuuji@0 423
yuuji@0 424
yuuji@0 425 /* MTX mail check mailbox (reparses status too)
yuuji@0 426 * Accepts: MAIL stream
yuuji@0 427 */
yuuji@0 428
yuuji@0 429 void mtx_check (MAILSTREAM *stream)
yuuji@0 430 {
yuuji@0 431 unsigned long i = 1;
yuuji@0 432 if (mtx_ping (stream)) { /* ping mailbox */
yuuji@0 433 /* get new message status */
yuuji@0 434 while (i <= stream->nmsgs) mail_elt (stream,i++);
yuuji@0 435 mm_log ("Check completed",(long) NIL);
yuuji@0 436 }
yuuji@0 437 }
yuuji@0 438
yuuji@0 439 /* MTX mail expunge mailbox
yuuji@0 440 * Accepts: MAIL stream
yuuji@0 441 * sequence to expunge if non-NIL
yuuji@0 442 * expunge options
yuuji@0 443 * Returns: T, always
yuuji@0 444 */
yuuji@0 445
yuuji@0 446 long mtx_expunge (MAILSTREAM *stream,char *sequence,long options)
yuuji@0 447 {
yuuji@0 448 long ret;
yuuji@0 449 unsigned long i = 1;
yuuji@0 450 unsigned long j,k,m,recent;
yuuji@0 451 unsigned long n = 0;
yuuji@0 452 unsigned long delta = 0;
yuuji@0 453 MESSAGECACHE *elt;
yuuji@0 454 char tmp[MAILTMPLEN];
yuuji@0 455 if (!(ret = (sequence ? ((options & EX_UID) ?
yuuji@0 456 mail_uid_sequence (stream,sequence) :
yuuji@0 457 mail_sequence (stream,sequence)) : LONGT) &&
yuuji@0 458 mtx_ping (stream))); /* parse sequence if given, ping stream */
yuuji@0 459 else if (stream->rdonly) mm_log ("Expunge ignored on readonly mailbox",WARN);
yuuji@0 460 else {
yuuji@0 461 mm_critical (stream); /* go critical */
yuuji@0 462 recent = stream->recent; /* get recent now that pinged */
yuuji@0 463 while (i <= stream->nmsgs) {/* for each message */
yuuji@0 464 elt = mail_elt (stream,i);/* get cache element */
yuuji@0 465 /* number of bytes to smash or preserve */
yuuji@0 466 k = elt->private.special.text.size + elt->rfc822_size;
yuuji@0 467 /* if need to expunge this message */
yuuji@0 468 if (elt->deleted && (sequence ? elt->sequence : T)) {
yuuji@0 469 /* if recent, note one less recent message */
yuuji@0 470 if (elt->recent) --recent;
yuuji@0 471 delta += k; /* number of bytes to delete */
yuuji@0 472 /* notify upper levels */
yuuji@0 473 mail_expunged (stream,i);
yuuji@0 474 n++; /* count up one more deleted message */
yuuji@0 475 }
yuuji@0 476 else if (i++ && delta) { /* preserved message */
yuuji@0 477 /* first byte to preserve */
yuuji@0 478 j = elt->private.special.offset;
yuuji@0 479 do { /* read from source position */
yuuji@0 480 m = min (k,(unsigned long) MAILTMPLEN);
yuuji@0 481 lseek (LOCAL->fd,j,SEEK_SET);
yuuji@0 482 read (LOCAL->fd,tmp,(size_t) m);
yuuji@0 483 /* write to destination position */
yuuji@0 484 lseek (LOCAL->fd,j - delta,SEEK_SET);
yuuji@0 485 write (LOCAL->fd,tmp,(size_t) m);
yuuji@0 486 j += m; /* next chunk, perhaps */
yuuji@0 487 } while (k -= m); /* until done */
yuuji@0 488 elt->private.special.offset -= delta;
yuuji@0 489 }
yuuji@0 490 }
yuuji@0 491 if (n) { /* truncate file after last message */
yuuji@0 492 chsize (LOCAL->fd,LOCAL->filesize -= delta);
yuuji@0 493 sprintf (tmp,"Expunged %ld messages",n);
yuuji@0 494 mm_log (tmp,(long) NIL); /* output the news */
yuuji@0 495 }
yuuji@0 496 else mm_log ("No messages deleted, so no update needed",(long) NIL);
yuuji@0 497 mm_nocritical (stream); /* release critical */
yuuji@0 498 /* notify upper level of new mailbox size */
yuuji@0 499 mail_exists (stream,stream->nmsgs);
yuuji@0 500 mail_recent (stream,recent);
yuuji@0 501 }
yuuji@0 502 return ret;
yuuji@0 503 }
yuuji@0 504
yuuji@0 505 /* MTX mail copy message(s)
yuuji@0 506 * Accepts: MAIL stream
yuuji@0 507 * sequence
yuuji@0 508 * destination mailbox
yuuji@0 509 * copy options
yuuji@0 510 * Returns: T if success, NIL if failed
yuuji@0 511 */
yuuji@0 512
yuuji@0 513 long mtx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
yuuji@0 514 {
yuuji@0 515 char tmp[MAILTMPLEN];
yuuji@0 516 struct stat sbuf;
yuuji@0 517 MESSAGECACHE *elt;
yuuji@0 518 unsigned long i,j,k;
yuuji@0 519 long ret = LONGT;
yuuji@0 520 int fd;
yuuji@0 521 mailproxycopy_t pc =
yuuji@0 522 (mailproxycopy_t) mail_parameters (stream,GET_MAILPROXYCOPY,NIL);
yuuji@0 523 if (!((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
yuuji@0 524 mail_sequence (stream,sequence))) return NIL;
yuuji@0 525 if (!mtx_isvalid (mailbox,tmp)) switch (errno) {
yuuji@0 526 case ENOENT: /* no such file? */
yuuji@0 527 mm_notify (stream,"[TRYCREATE] Must create mailbox before append",
yuuji@0 528 (long) NIL);
yuuji@0 529 return NIL;
yuuji@0 530 case 0: /* merely empty file? */
yuuji@0 531 break;
yuuji@0 532 case EINVAL: /* name is bogus */
yuuji@0 533 if (pc) return (*pc) (stream,sequence,mailbox,options);
yuuji@0 534 return mtx_badname (tmp,mailbox);
yuuji@0 535 default: /* file exists, but not valid format */
yuuji@0 536 if (pc) return (*pc) (stream,sequence,mailbox,options);
yuuji@0 537 sprintf (tmp,"Not a MTX-format mailbox: %s",mailbox);
yuuji@0 538 mm_log (tmp,ERROR);
yuuji@0 539 return NIL;
yuuji@0 540 }
yuuji@0 541 /* open the destination */
yuuji@0 542 if (!mailboxfile (tmp,mailbox) ||
yuuji@0 543 (fd = open (tmp,O_BINARY|O_WRONLY|O_APPEND|O_CREAT,
yuuji@0 544 S_IREAD|S_IWRITE)) < 0) {
yuuji@0 545 sprintf (tmp,"Unable to open copy mailbox: %s",strerror (errno));
yuuji@0 546 mm_log (tmp,ERROR);
yuuji@0 547 return NIL;
yuuji@0 548 }
yuuji@0 549
yuuji@0 550 mm_critical (stream); /* go critical */
yuuji@0 551 fstat (fd,&sbuf); /* get current file size */
yuuji@0 552 /* for each requested message */
yuuji@0 553 for (i = 1; ret && (i <= stream->nmsgs); i++)
yuuji@0 554 if ((elt = mail_elt (stream,i))->sequence) {
yuuji@0 555 lseek (LOCAL->fd,elt->private.special.offset,SEEK_SET);
yuuji@0 556 /* number of bytes to copy */
yuuji@0 557 k = elt->private.special.text.size + elt->rfc822_size;
yuuji@0 558 do { /* read from source position */
yuuji@0 559 j = min (k,(long) MAILTMPLEN);
yuuji@0 560 read (LOCAL->fd,tmp,(size_t) j);
yuuji@0 561 if (write (fd,tmp,(size_t) j) < 0) {
yuuji@0 562 sprintf (tmp,"Unable to write message: %s",strerror (errno));
yuuji@0 563 mm_log (tmp,ERROR);
yuuji@0 564 chsize (fd,sbuf.st_size);
yuuji@0 565 j = k;
yuuji@0 566 ret = NIL; /* note error */
yuuji@0 567 break;
yuuji@0 568 }
yuuji@0 569 } while (k -= j); /* until done */
yuuji@0 570 }
yuuji@0 571 close (fd); /* close the file */
yuuji@0 572 mm_nocritical (stream); /* release critical */
yuuji@0 573 /* delete all requested messages */
yuuji@0 574 if (ret && (options & CP_MOVE)) for (i = 1; i <= stream->nmsgs; i++)
yuuji@0 575 if ((elt = mail_elt (stream,i))->sequence) {
yuuji@0 576 elt->deleted = T; /* mark message deleted */
yuuji@0 577 /* recalculate status */
yuuji@0 578 mtx_update_status (stream,i);
yuuji@0 579 }
yuuji@0 580 if (ret && mail_parameters (NIL,GET_COPYUID,NIL))
yuuji@0 581 mm_log ("Can not return meaningful COPYUID with this mailbox format",WARN);
yuuji@0 582 return ret;
yuuji@0 583 }
yuuji@0 584
yuuji@0 585 /* MTX mail append message from stringstruct
yuuji@0 586 * Accepts: MAIL stream
yuuji@0 587 * destination mailbox
yuuji@0 588 * append callback
yuuji@0 589 * data for callback
yuuji@0 590 * Returns: T if append successful, else NIL
yuuji@0 591 */
yuuji@0 592
yuuji@0 593 long mtx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
yuuji@0 594 {
yuuji@0 595 struct stat sbuf;
yuuji@0 596 int fd,ld,c;
yuuji@0 597 char *flags,*date,tmp[MAILTMPLEN],file[MAILTMPLEN];
yuuji@0 598 FILE *df;
yuuji@0 599 MESSAGECACHE elt;
yuuji@0 600 long f;
yuuji@0 601 unsigned long i,uf;
yuuji@0 602 STRING *message;
yuuji@0 603 long ret = LONGT;
yuuji@0 604 /* default stream to prototype */
yuuji@0 605 if (!stream) stream = &mtxproto;
yuuji@0 606 /* make sure valid mailbox */
yuuji@0 607 if (!mtx_isvalid (mailbox,tmp)) switch (errno) {
yuuji@0 608 case ENOENT: /* no such file? */
yuuji@0 609 if (((mailbox[0] == 'I') || (mailbox[0] == 'i')) &&
yuuji@0 610 ((mailbox[1] == 'N') || (mailbox[1] == 'n')) &&
yuuji@0 611 ((mailbox[2] == 'B') || (mailbox[2] == 'b')) &&
yuuji@0 612 ((mailbox[3] == 'O') || (mailbox[3] == 'o')) &&
yuuji@0 613 ((mailbox[4] == 'X') || (mailbox[4] == 'x')) && !mailbox[5])
yuuji@0 614 dummy_create (NIL,"INBOX.MTX");
yuuji@0 615 else {
yuuji@0 616 mm_notify (stream,"[TRYCREATE] Must create mailbox before append",NIL);
yuuji@0 617 return NIL;
yuuji@0 618 }
yuuji@0 619 /* falls through */
yuuji@0 620 case 0: /* merely empty file? */
yuuji@0 621 break;
yuuji@0 622 case EINVAL:
yuuji@0 623 return mtx_badname (tmp,mailbox);
yuuji@0 624 default:
yuuji@0 625 sprintf (tmp,"Not a MTX-format mailbox: %.80s",mailbox);
yuuji@0 626 mm_log (tmp,ERROR);
yuuji@0 627 return NIL;
yuuji@0 628 }
yuuji@0 629 /* get first message */
yuuji@0 630 if (!(*af) (stream,data,&flags,&date,&message)) return NIL;
yuuji@0 631 /* open destination mailbox */
yuuji@0 632 if (!mailboxfile (file,mailbox) ||
yuuji@0 633 ((fd = open (file,O_BINARY|O_WRONLY|O_APPEND|O_CREAT,
yuuji@0 634 S_IREAD|S_IWRITE)) < 0) || !(df = fdopen (fd,"ab"))) {
yuuji@0 635 sprintf (tmp,"Can't open append mailbox: %s",strerror (errno));
yuuji@0 636 mm_log (tmp,ERROR);
yuuji@0 637 return NIL;
yuuji@0 638 }
yuuji@0 639 mm_critical (stream); /* go critical */
yuuji@0 640 fstat (fd,&sbuf); /* get current file size */
yuuji@0 641
yuuji@0 642 errno = 0;
yuuji@0 643 do { /* parse flags */
yuuji@0 644 if (!SIZE (message)) { /* guard against zero-length */
yuuji@0 645 mm_log ("Append of zero-length message",ERROR);
yuuji@0 646 ret = NIL;
yuuji@0 647 break;
yuuji@0 648 }
yuuji@0 649 f = mail_parse_flags (stream,flags,&i);
yuuji@0 650 /* reverse bits (dontcha wish we had CIRC?) */
yuuji@0 651 for (uf = 0; i; uf |= 1 << (29 - find_rightmost_bit (&i)));
yuuji@0 652 if (date) { /* parse date if given */
yuuji@0 653 if (!mail_parse_date (&elt,date)) {
yuuji@0 654 sprintf (tmp,"Bad date in append: %.80s",date);
yuuji@0 655 mm_log (tmp,ERROR);
yuuji@0 656 ret = NIL; /* mark failure */
yuuji@0 657 break;
yuuji@0 658 }
yuuji@0 659 mail_date (tmp,&elt); /* write preseved date */
yuuji@0 660 }
yuuji@0 661 else internal_date (tmp); /* get current date in IMAP format */
yuuji@0 662 /* write header */
yuuji@0 663 if (fprintf (df,"%s,%lu;%010lo%02lo\015\012",tmp,i = SIZE (message),uf,
yuuji@0 664 (unsigned long) f) < 0) ret = NIL;
yuuji@0 665 else { /* write message */
yuuji@0 666 if (i) do c = 0xff & SNX (message);
yuuji@0 667 while ((putc (c,df) != EOF) && --i);
yuuji@0 668 /* get next message */
yuuji@0 669 if (i || !(*af) (stream,data,&flags,&date,&message)) ret = NIL;
yuuji@0 670 }
yuuji@0 671 } while (ret && message);
yuuji@0 672 /* revert file if failure */
yuuji@0 673 if (!ret || (fflush (df) == EOF)) {
yuuji@0 674 chsize (fd,sbuf.st_size); /* revert file */
yuuji@0 675 close (fd); /* make sure fclose() doesn't corrupt us */
yuuji@0 676 if (errno) {
yuuji@0 677 sprintf (tmp,"Message append failed: %s",strerror (errno));
yuuji@0 678 mm_log (tmp,ERROR);
yuuji@0 679 }
yuuji@0 680 ret = NIL;
yuuji@0 681 }
yuuji@0 682 fclose (df); /* close the file */
yuuji@0 683 mm_nocritical (stream); /* release critical */
yuuji@0 684 if (ret && mail_parameters (NIL,GET_APPENDUID,NIL))
yuuji@0 685 mm_log ("Can not return meaningful APPENDUID with this mailbox format",
yuuji@0 686 WARN);
yuuji@0 687 return ret;
yuuji@0 688 }
yuuji@0 689
yuuji@0 690
yuuji@0 691 /* Return bad file name error message
yuuji@0 692 * Accepts: temporary buffer
yuuji@0 693 * file name
yuuji@0 694 * Returns: long NIL always
yuuji@0 695 */
yuuji@0 696
yuuji@0 697 long mtx_badname (char *tmp,char *s)
yuuji@0 698 {
yuuji@0 699 sprintf (tmp,"Invalid mailbox name: %s",s);
yuuji@0 700 mm_log (tmp,ERROR);
yuuji@0 701 return (long) NIL;
yuuji@0 702 }
yuuji@0 703
yuuji@0 704 /* Parse mailbox
yuuji@0 705 * Accepts: MAIL stream
yuuji@0 706 * Returns: T if parse OK
yuuji@0 707 * NIL if failure, stream aborted
yuuji@0 708 */
yuuji@0 709
yuuji@0 710 long mtx_parse (MAILSTREAM *stream)
yuuji@0 711 {
yuuji@0 712 struct stat sbuf;
yuuji@0 713 MESSAGECACHE *elt = NIL;
yuuji@0 714 unsigned char *s,*t,*x,lbuf[65];
yuuji@0 715 char tmp[MAILTMPLEN];
yuuji@0 716 long i;
yuuji@0 717 long curpos = LOCAL->filesize;
yuuji@0 718 long nmsgs = stream->nmsgs;
yuuji@0 719 long recent = stream->recent;
yuuji@0 720 fstat (LOCAL->fd,&sbuf); /* get status */
yuuji@0 721 if (sbuf.st_size < curpos) { /* sanity check */
yuuji@0 722 sprintf (tmp,"Mailbox shrank from %ld to %ld!",curpos,sbuf.st_size);
yuuji@0 723 mm_log (tmp,ERROR);
yuuji@0 724 mtx_close (stream,NIL);
yuuji@0 725 return NIL;
yuuji@0 726 }
yuuji@0 727 /* while there is stuff to parse */
yuuji@0 728 while (i = sbuf.st_size - curpos) {
yuuji@0 729 /* get to that position in the file */
yuuji@0 730 lseek (LOCAL->fd,curpos,SEEK_SET);
yuuji@0 731 if ((i = read (LOCAL->fd,lbuf,64)) <= 0) {
yuuji@0 732 sprintf (tmp,"Unable to read internal header at %ld, size = %ld: %s",
yuuji@0 733 curpos,sbuf.st_size,i ? strerror (errno) : "no data read");
yuuji@0 734 mm_log (tmp,ERROR);
yuuji@0 735 mtx_close (stream,NIL);
yuuji@0 736 return NIL;
yuuji@0 737 }
yuuji@0 738 lbuf[i] = '\0'; /* tie off buffer just in case */
yuuji@0 739 if (!((s = strchr (lbuf,'\015')) && (s[1] == '\012'))) {
yuuji@0 740 sprintf (tmp,"Unable to find end of line at %ld in %ld bytes, text: %s",
yuuji@0 741 curpos,i,(char *) lbuf);
yuuji@0 742 mm_log (tmp,ERROR);
yuuji@0 743 mtx_close (stream,NIL);
yuuji@0 744 return NIL;
yuuji@0 745 }
yuuji@0 746 *s = '\0'; /* tie off header line */
yuuji@0 747 i = (s + 2) - lbuf; /* note start of text offset */
yuuji@0 748 if (!((s = strchr (lbuf,',')) && (t = strchr (s+1,';')))) {
yuuji@0 749 sprintf (tmp,"Unable to parse internal header at %ld: %s",curpos,
yuuji@0 750 (char *) lbuf);
yuuji@0 751 mm_log (tmp,ERROR);
yuuji@0 752 mtx_close (stream,NIL);
yuuji@0 753 return NIL;
yuuji@0 754 }
yuuji@0 755
yuuji@0 756 *s++ = '\0'; *t++ = '\0'; /* tie off fields */
yuuji@0 757 /* intantiate an elt for this message */
yuuji@0 758 (elt = mail_elt (stream,++nmsgs))->valid = T;
yuuji@0 759 elt->private.uid = ++stream->uid_last;
yuuji@0 760 /* note file offset of header */
yuuji@0 761 elt->private.special.offset = curpos;
yuuji@0 762 /* as well as offset from header of message */
yuuji@0 763 elt->private.special.text.size = i;
yuuji@0 764 /* header size not known yet */
yuuji@0 765 elt->private.msg.header.text.size = 0;
yuuji@0 766 /* parse the header components */
yuuji@0 767 if (!(mail_parse_date (elt,lbuf) &&
yuuji@0 768 (elt->rfc822_size = strtol (x = s,(char **) &s,10)) && (!(s && *s))&&
yuuji@0 769 isdigit (t[0]) && isdigit (t[1]) && isdigit (t[2]) &&
yuuji@0 770 isdigit (t[3]) && isdigit (t[4]) && isdigit (t[5]) &&
yuuji@0 771 isdigit (t[6]) && isdigit (t[7]) && isdigit (t[8]) &&
yuuji@0 772 isdigit (t[9]) && isdigit (t[10]) && isdigit (t[11]) && !t[12])) {
yuuji@0 773 sprintf (tmp,"Unable to parse internal header elements at %ld: %s,%s;%s",
yuuji@0 774 curpos,(char *) lbuf,(char *) x,(char *) t);
yuuji@0 775 mtx_close (stream,NIL);
yuuji@0 776 return NIL;
yuuji@0 777 }
yuuji@0 778 /* update current position to next header */
yuuji@0 779 curpos += i + elt->rfc822_size;
yuuji@0 780 /* calculate system flags */
yuuji@0 781 if ((i = ((t[10]-'0') * 8) + t[11]-'0') & fSEEN) elt->seen = T;
yuuji@0 782 if (i & fDELETED) elt->deleted = T;
yuuji@0 783 if (i & fFLAGGED) elt->flagged = T;
yuuji@0 784 if (i & fANSWERED) elt->answered = T;
yuuji@0 785 if (i & fDRAFT) elt->draft = T;
yuuji@0 786 if (curpos > sbuf.st_size) {
yuuji@0 787 sprintf (tmp,"Last message (at %lu) runs past end of file (%lu > %lu)",
yuuji@0 788 elt->private.special.offset,curpos,sbuf.st_size);
yuuji@0 789 mm_log (tmp,ERROR);
yuuji@0 790 mtx_close (stream,NIL);
yuuji@0 791 return NIL;
yuuji@0 792 }
yuuji@0 793 }
yuuji@0 794 /* update parsed file size */
yuuji@0 795 LOCAL->filesize = sbuf.st_size;
yuuji@0 796 mail_exists (stream,nmsgs); /* notify upper level of new mailbox size */
yuuji@0 797 mail_recent (stream,recent); /* and of change in recent messages */
yuuji@0 798 return T; /* return the winnage */
yuuji@0 799 }
yuuji@0 800
yuuji@0 801 /* Update status string
yuuji@0 802 * Accepts: MAIL stream
yuuji@0 803 * message number
yuuji@0 804 */
yuuji@0 805
yuuji@0 806 void mtx_update_status (MAILSTREAM *stream,unsigned long msgno)
yuuji@0 807 {
yuuji@0 808 char tmp[MAILTMPLEN];
yuuji@0 809 MESSAGECACHE *elt = mail_elt (stream,msgno);
yuuji@0 810 unsigned long j,k = 0;
yuuji@0 811 /* not if readonly you don't */
yuuji@0 812 if (stream->rdonly || !elt->valid) return;
yuuji@0 813 j = elt->user_flags; /* get user flags */
yuuji@0 814 /* reverse bits (dontcha wish we had CIRC?) */
yuuji@0 815 while (j) k |= 1 << 29 - find_rightmost_bit (&j);
yuuji@0 816 sprintf (tmp,"%010lo%02o",k, /* print new flag string */
yuuji@0 817 fOLD + (fSEEN * elt->seen) + (fDELETED * elt->deleted) +
yuuji@0 818 (fFLAGGED * elt->flagged) + (fANSWERED * elt->answered) +
yuuji@0 819 (fDRAFT * elt->draft));
yuuji@0 820 /* get to that place in the file */
yuuji@0 821 lseek (LOCAL->fd,(off_t) elt->private.special.offset +
yuuji@0 822 elt->private.special.text.size - 14,SEEK_SET);
yuuji@0 823 write (LOCAL->fd,tmp,12); /* write new flags */
yuuji@0 824 }
yuuji@0 825
yuuji@0 826 /* MTX locate header for a message
yuuji@0 827 * Accepts: MAIL stream
yuuji@0 828 * message number
yuuji@0 829 * pointer to returned header size
yuuji@0 830 * Returns: position of header in file
yuuji@0 831 */
yuuji@0 832
yuuji@0 833 unsigned long mtx_hdrpos (MAILSTREAM *stream,unsigned long msgno,
yuuji@0 834 unsigned long *size)
yuuji@0 835 {
yuuji@0 836 unsigned long siz;
yuuji@0 837 size_t i = 0;
yuuji@0 838 int q = 0;
yuuji@0 839 char *s,tmp[MAILTMPLEN];
yuuji@0 840 MESSAGECACHE *elt = mail_elt (stream,msgno);
yuuji@0 841 long pos = elt->private.special.offset + elt->private.special.text.size;
yuuji@0 842 /* is header size known? */
yuuji@0 843 if (!(*size = elt->private.msg.header.text.size)) {
yuuji@0 844 /* get to header position */
yuuji@0 845 lseek (LOCAL->fd,pos,SEEK_SET);
yuuji@0 846 /* search message for CRLF CRLF */
yuuji@0 847 for (siz = 1; siz <= elt->rfc822_size; siz++) {
yuuji@0 848 if (!i && /* buffer empty? */
yuuji@0 849 (read (LOCAL->fd,s = tmp,
yuuji@0 850 i = (size_t) min(elt->rfc822_size-siz,(long)MAILTMPLEN))<= 0))
yuuji@0 851 return pos;
yuuji@0 852 else i--;
yuuji@0 853 switch (q) { /* sniff at buffer */
yuuji@0 854 case 0: /* first character */
yuuji@0 855 q = (*s++ == '\015') ? 1 : 0;
yuuji@0 856 break;
yuuji@0 857 case 1: /* second character */
yuuji@0 858 q = (*s++ == '\012') ? 2 : 0;
yuuji@0 859 break;
yuuji@0 860 case 2: /* third character */
yuuji@0 861 q = (*s++ == '\015') ? 3 : 0;
yuuji@0 862 break;
yuuji@0 863 case 3: /* fourth character */
yuuji@0 864 if (*s++ == '\012') { /* have the sequence? */
yuuji@0 865 /* yes, note for later */
yuuji@0 866 elt->private.msg.header.text.size = (*size = siz);
yuuji@0 867 return pos; /* return to caller */
yuuji@0 868 }
yuuji@0 869 q = 0; /* lost... */
yuuji@0 870 break;
yuuji@0 871 }
yuuji@0 872 }
yuuji@0 873 }
yuuji@0 874 return pos; /* have position */
yuuji@0 875 }

UW-IMAP'd extensions by yuuji