imapext-2007

annotate src/osdep/dos/bezrkdos.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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children
rev   line source
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: Berkeley 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 /* Dedication:
yuuji@0 31 * This file is dedicated with affection to those Merry Marvels of Musical
yuuji@0 32 * Madness . . .
yuuji@0 33 * -> The Incomparable Leland Stanford Junior University Marching Band <-
yuuji@0 34 * who entertain, awaken, and outrage Stanford fans in the fact of repeated
yuuji@0 35 * losing seasons and shattered Rose Bowl dreams [Cardinal just don't have
yuuji@0 36 * HUSKY FEVER!!!].
yuuji@0 37 *
yuuji@0 38 */
yuuji@0 39
yuuji@0 40 #include <ctype.h>
yuuji@0 41 #include <errno.h>
yuuji@0 42 #include <fcntl.h>
yuuji@0 43 #include "mail.h"
yuuji@0 44 #include "osdep.h"
yuuji@0 45 #include <time.h>
yuuji@0 46 #include <sys\stat.h>
yuuji@0 47 #include <dos.h>
yuuji@0 48 #include "rfc822.h"
yuuji@0 49 #include "dummy.h"
yuuji@0 50 #include "misc.h"
yuuji@0 51 #include "fdstring.h"
yuuji@0 52
yuuji@0 53 /* Berkeley I/O stream local data */
yuuji@0 54
yuuji@0 55 typedef struct bezerk_local {
yuuji@0 56 int fd; /* file descriptor for I/O */
yuuji@0 57 off_t filesize; /* file size parsed */
yuuji@0 58 char *buf; /* temporary buffer */
yuuji@0 59 } BEZERKLOCAL;
yuuji@0 60
yuuji@0 61
yuuji@0 62 /* Convenient access to local data */
yuuji@0 63
yuuji@0 64 #define LOCAL ((BEZERKLOCAL *) stream->local)
yuuji@0 65
yuuji@0 66 /* Function prototypes */
yuuji@0 67
yuuji@0 68 DRIVER *bezerk_valid (char *name);
yuuji@0 69 long bezerk_isvalid (char *name,char *tmp);
yuuji@0 70 int bezerk_valid_line (char *s,char **rx,int *rzn);
yuuji@0 71 void *bezerk_parameters (long function,void *value);
yuuji@0 72 void bezerk_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents);
yuuji@0 73 void bezerk_list (MAILSTREAM *stream,char *ref,char *pat);
yuuji@0 74 void bezerk_lsub (MAILSTREAM *stream,char *ref,char *pat);
yuuji@0 75 long bezerk_create (MAILSTREAM *stream,char *mailbox);
yuuji@0 76 long bezerk_delete (MAILSTREAM *stream,char *mailbox);
yuuji@0 77 long bezerk_rename (MAILSTREAM *stream,char *old,char *newname);
yuuji@0 78 MAILSTREAM *bezerk_open (MAILSTREAM *stream);
yuuji@0 79 void bezerk_close (MAILSTREAM *stream,long options);
yuuji@0 80 char *bezerk_header (MAILSTREAM *stream,unsigned long msgno,
yuuji@0 81 unsigned long *length,long flags);
yuuji@0 82 long bezerk_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,
yuuji@0 83 long flags);
yuuji@0 84 long bezerk_ping (MAILSTREAM *stream);
yuuji@0 85 void bezerk_check (MAILSTREAM *stream);
yuuji@0 86 long bezerk_expunge (MAILSTREAM *stream,char *sequence,long options);
yuuji@0 87 long bezerk_copy (MAILSTREAM *stream,char *sequence,char *mailbox,
yuuji@0 88 long options);
yuuji@0 89 long bezerk_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
yuuji@0 90 int bezerk_append_msg (MAILSTREAM *stream,FILE *sf,char *flags,char *date,
yuuji@0 91 STRING *msg);
yuuji@0 92 void bezerk_gc (MAILSTREAM *stream,long gcflags);
yuuji@0 93 char *bezerk_file (char *dst,char *name);
yuuji@0 94 long bezerk_badname (char *tmp,char *s);
yuuji@0 95 long bezerk_parse (MAILSTREAM *stream);
yuuji@0 96 unsigned long bezerk_hdrpos (MAILSTREAM *stream,unsigned long msgno,
yuuji@0 97 unsigned long *size);
yuuji@0 98
yuuji@0 99 /* Berkeley mail routines */
yuuji@0 100
yuuji@0 101
yuuji@0 102 /* Driver dispatch used by MAIL */
yuuji@0 103
yuuji@0 104 DRIVER bezerkdriver = {
yuuji@0 105 "bezerk", /* driver name */
yuuji@0 106 /* driver flags */
yuuji@0 107 DR_LOCAL|DR_MAIL|DR_LOWMEM|DR_CRLF|DR_NOSTICKY,
yuuji@0 108 (DRIVER *) NIL, /* next driver */
yuuji@0 109 bezerk_valid, /* mailbox is valid for us */
yuuji@0 110 bezerk_parameters, /* manipulate parameters */
yuuji@0 111 bezerk_scan, /* scan mailboxes */
yuuji@0 112 bezerk_list, /* list mailboxes */
yuuji@0 113 bezerk_lsub, /* list subscribed mailboxes */
yuuji@0 114 NIL, /* subscribe to mailbox */
yuuji@0 115 NIL, /* unsubscribe from mailbox */
yuuji@0 116 bezerk_create, /* create mailbox */
yuuji@0 117 bezerk_delete, /* delete mailbox */
yuuji@0 118 bezerk_rename, /* rename mailbox */
yuuji@0 119 mail_status_default, /* status of mailbox */
yuuji@0 120 bezerk_open, /* open mailbox */
yuuji@0 121 bezerk_close, /* close mailbox */
yuuji@0 122 NIL, /* fetch message "fast" attributes */
yuuji@0 123 NIL, /* fetch message flags */
yuuji@0 124 NIL, /* fetch overview */
yuuji@0 125 NIL, /* fetch message envelopes */
yuuji@0 126 bezerk_header, /* fetch message header */
yuuji@0 127 bezerk_text, /* fetch message text */
yuuji@0 128 NIL, /* fetch partial message text */
yuuji@0 129 NIL, /* unique identifier */
yuuji@0 130 NIL, /* message number */
yuuji@0 131 NIL, /* modify flags */
yuuji@0 132 NIL, /* per-message modify flags */
yuuji@0 133 NIL, /* search for message based on criteria */
yuuji@0 134 NIL, /* sort messages */
yuuji@0 135 NIL, /* thread messages */
yuuji@0 136 bezerk_ping, /* ping mailbox to see if still alive */
yuuji@0 137 bezerk_check, /* check for new messages */
yuuji@0 138 bezerk_expunge, /* expunge deleted messages */
yuuji@0 139 bezerk_copy, /* copy messages to another mailbox */
yuuji@0 140 bezerk_append, /* append string message to mailbox */
yuuji@0 141 NIL /* garbage collect stream */
yuuji@0 142 };
yuuji@0 143
yuuji@0 144 /* prototype stream */
yuuji@0 145 MAILSTREAM bezerkproto = {&bezerkdriver};
yuuji@0 146
yuuji@0 147 /* Berkeley mail validate mailbox
yuuji@0 148 * Accepts: mailbox name
yuuji@0 149 * Returns: our driver if name is valid, NIL otherwise
yuuji@0 150 */
yuuji@0 151
yuuji@0 152 DRIVER *bezerk_valid (char *name)
yuuji@0 153 {
yuuji@0 154 char tmp[MAILTMPLEN];
yuuji@0 155 return bezerk_isvalid (name,tmp) ? &bezerkdriver : (DRIVER *) NIL;
yuuji@0 156 }
yuuji@0 157
yuuji@0 158
yuuji@0 159 /* Berkeley mail test for valid mailbox
yuuji@0 160 * Accepts: mailbox name
yuuji@0 161 * Returns: T if valid, NIL otherwise
yuuji@0 162 */
yuuji@0 163
yuuji@0 164 long bezerk_isvalid (char *name,char *tmp)
yuuji@0 165 {
yuuji@0 166 int fd;
yuuji@0 167 long ret = NIL;
yuuji@0 168 struct stat sbuf;
yuuji@0 169 errno = EINVAL; /* assume invalid argument */
yuuji@0 170 /* if file, get its status */
yuuji@0 171 if ((*name != '{') && mailboxfile (tmp,name) && !stat (tmp,&sbuf)) {
yuuji@0 172 if (!sbuf.st_size)errno = 0;/* empty file */
yuuji@0 173 else if ((fd = open (tmp,O_BINARY|O_RDONLY,NIL)) >= 0) {
yuuji@0 174 memset (tmp,'\0',MAILTMPLEN);
yuuji@0 175 errno = -1; /* in case bezerk_valid_line fails */
yuuji@0 176 if (read (fd,tmp,MAILTMPLEN-1) >= 0)
yuuji@0 177 ret = bezerk_valid_line (tmp,NIL,NIL);
yuuji@0 178 close (fd); /* close the file */
yuuji@0 179 }
yuuji@0 180 }
yuuji@0 181 /* in case INBOX but not bezerk format */
yuuji@0 182 else if ((errno == ENOENT) && ((name[0] == 'I') || (name[0] == 'i')) &&
yuuji@0 183 ((name[1] == 'N') || (name[1] == 'n')) &&
yuuji@0 184 ((name[2] == 'B') || (name[2] == 'b')) &&
yuuji@0 185 ((name[3] == 'O') || (name[3] == 'o')) &&
yuuji@0 186 ((name[4] == 'X') || (name[4] == 'x')) && !name[5]) errno = -1;
yuuji@0 187 return ret; /* return what we should */
yuuji@0 188 }
yuuji@0 189
yuuji@0 190 /* Validate line
yuuji@0 191 * Accepts: pointer to candidate string to validate as a From header
yuuji@0 192 * return pointer to end of date/time field
yuuji@0 193 * return pointer to offset from t of time (hours of ``mmm dd hh:mm'')
yuuji@0 194 * return pointer to offset from t of time zone (if non-zero)
yuuji@0 195 * Returns: t,ti,zn set if valid From string, else ti is NIL
yuuji@0 196 */
yuuji@0 197
yuuji@0 198 int bezerk_valid_line (char *s,char **rx,int *rzn)
yuuji@0 199 {
yuuji@0 200 char *x;
yuuji@0 201 int zn;
yuuji@0 202 int ti = 0;
yuuji@0 203 /* line must begin with "From " */
yuuji@0 204 if ((*s != 'F') || (s[1] != 'r') || (s[2] != 'o') || (s[3] != 'm') ||
yuuji@0 205 (s[4] != ' ')) return NIL;
yuuji@0 206 /* find end of line */
yuuji@0 207 for (x = s + 5; *x && *x != '\012'; x++);
yuuji@0 208 if (!x) return NIL; /* end of line not found */
yuuji@0 209 if (x[-1] == '\015') x--; /* ignore CR */
yuuji@0 210 if ((x - s < 27)) return NIL; /* line too short */
yuuji@0 211 if (x - s >= 41) { /* possible search for " remote from " */
yuuji@0 212 for (zn = -1; x[zn] != ' '; zn--);
yuuji@0 213 if ((x[zn-1] == 'm') && (x[zn-2] == 'o') && (x[zn-3] == 'r') &&
yuuji@0 214 (x[zn-4] == 'f') && (x[zn-5] == ' ') && (x[zn-6] == 'e') &&
yuuji@0 215 (x[zn-7] == 't') && (x[zn-8] == 'o') && (x[zn-9] == 'm') &&
yuuji@0 216 (x[zn-10] == 'e') && (x[zn-11] == 'r') && (x[zn-12] == ' '))
yuuji@0 217 x += zn - 12;
yuuji@0 218 }
yuuji@0 219 if (x[-5] == ' ') { /* ends with year? */
yuuji@0 220 /* no timezone? */
yuuji@0 221 if (x[-8] == ':') zn = 0,ti = -5;
yuuji@0 222 /* three letter timezone? */
yuuji@0 223 else if (x[-9] == ' ') ti = zn = -9;
yuuji@0 224 /* numeric timezone? */
yuuji@0 225 else if ((x[-11]==' ') && ((x[-10]=='+') || (x[-10]=='-'))) ti = zn = -11;
yuuji@0 226 }
yuuji@0 227 else if (x[-4] == ' ') { /* no year and three leter timezone? */
yuuji@0 228 if (x[-9] == ' ') zn = -4,ti = -9;
yuuji@0 229 }
yuuji@0 230 else if (x[-6] == ' ') { /* no year and numeric timezone? */
yuuji@0 231 if ((x[-11] == ' ') && ((x[-5] == '+') || (x[-5] == '-')))
yuuji@0 232 zn = -6,ti = -11;
yuuji@0 233 }
yuuji@0 234 /* time must be www mmm dd hh:mm[:ss] */
yuuji@0 235 if (ti && !((x[ti - 3] == ':') &&
yuuji@0 236 (x[ti -= ((x[ti - 6] == ':') ? 9 : 6)] == ' ') &&
yuuji@0 237 (x[ti - 3] == ' ') && (x[ti - 7] == ' ') &&
yuuji@0 238 (x[ti - 11] == ' '))) return NIL;
yuuji@0 239 if (rx) *rx = x; /* set return values */
yuuji@0 240 if (rzn) *rzn = zn;
yuuji@0 241 return ti;
yuuji@0 242 }
yuuji@0 243
yuuji@0 244 /* Berkeley manipulate driver parameters
yuuji@0 245 * Accepts: function code
yuuji@0 246 * function-dependent value
yuuji@0 247 * Returns: function-dependent return value
yuuji@0 248 */
yuuji@0 249
yuuji@0 250 void *bezerk_parameters (long function,void *value)
yuuji@0 251 {
yuuji@0 252 return NIL;
yuuji@0 253 }
yuuji@0 254
yuuji@0 255
yuuji@0 256 /* Berkeley mail scan mailboxes
yuuji@0 257 * Accepts: mail stream
yuuji@0 258 * reference
yuuji@0 259 * pattern to search
yuuji@0 260 * string to scan
yuuji@0 261 */
yuuji@0 262
yuuji@0 263 void bezerk_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
yuuji@0 264 {
yuuji@0 265 if (stream) dummy_scan (NIL,ref,pat,contents);
yuuji@0 266 }
yuuji@0 267
yuuji@0 268
yuuji@0 269 /* Berkeley mail list mailboxes
yuuji@0 270 * Accepts: mail stream
yuuji@0 271 * reference
yuuji@0 272 * pattern to search
yuuji@0 273 */
yuuji@0 274
yuuji@0 275 void bezerk_list (MAILSTREAM *stream,char *ref,char *pat)
yuuji@0 276 {
yuuji@0 277 if (stream) dummy_list (stream,ref,pat);
yuuji@0 278 }
yuuji@0 279
yuuji@0 280
yuuji@0 281 /* Berkeley mail list subscribed mailboxes
yuuji@0 282 * Accepts: mail stream
yuuji@0 283 * reference
yuuji@0 284 * pattern to search
yuuji@0 285 */
yuuji@0 286
yuuji@0 287 void bezerk_lsub (MAILSTREAM *stream,char *ref,char *pat)
yuuji@0 288 {
yuuji@0 289 if (stream) dummy_lsub (stream,ref,pat);
yuuji@0 290 }
yuuji@0 291
yuuji@0 292 /* Berkeley mail create mailbox
yuuji@0 293 * Accepts: MAIL stream
yuuji@0 294 * mailbox name to create
yuuji@0 295 * Returns: T on success, NIL on failure
yuuji@0 296 */
yuuji@0 297
yuuji@0 298 long bezerk_create (MAILSTREAM *stream,char *mailbox)
yuuji@0 299 {
yuuji@0 300 return dummy_create (stream,mailbox);
yuuji@0 301 }
yuuji@0 302
yuuji@0 303
yuuji@0 304 /* Berkeley mail delete mailbox
yuuji@0 305 * Accepts: MAIL stream
yuuji@0 306 * mailbox name to delete
yuuji@0 307 * Returns: T on success, NIL on failure
yuuji@0 308 */
yuuji@0 309
yuuji@0 310 long bezerk_delete (MAILSTREAM *stream,char *mailbox)
yuuji@0 311 {
yuuji@0 312 return dummy_delete (stream,mailbox);
yuuji@0 313 }
yuuji@0 314
yuuji@0 315
yuuji@0 316 /* Berkeley mail rename mailbox
yuuji@0 317 * Accepts: MAIL stream
yuuji@0 318 * old mailbox name
yuuji@0 319 * new mailbox name (or NIL for delete)
yuuji@0 320 * Returns: T on success, NIL on failure
yuuji@0 321 */
yuuji@0 322
yuuji@0 323 long bezerk_rename (MAILSTREAM *stream,char *old,char *newname)
yuuji@0 324 {
yuuji@0 325 return dummy_rename (stream,old,newname);
yuuji@0 326 }
yuuji@0 327
yuuji@0 328 /* Berkeley mail open
yuuji@0 329 * Accepts: stream to open
yuuji@0 330 * Returns: stream on success, NIL on failure
yuuji@0 331 */
yuuji@0 332
yuuji@0 333 MAILSTREAM *bezerk_open (MAILSTREAM *stream)
yuuji@0 334 {
yuuji@0 335 long i;
yuuji@0 336 int fd;
yuuji@0 337 char *s;
yuuji@0 338 char tmp[MAILTMPLEN];
yuuji@0 339 /* return prototype for OP_PROTOTYPE call */
yuuji@0 340 if (!stream) return &bezerkproto;
yuuji@0 341 if (stream->local) fatal ("bezerk recycle stream");
yuuji@0 342 if (!mailboxfile (tmp,stream->mailbox))
yuuji@0 343 return (MAILSTREAM *) bezerk_badname (tmp,stream->mailbox);
yuuji@0 344 if (((fd = open (tmp,O_BINARY|O_RDONLY,NIL)) < 0)) {
yuuji@0 345 sprintf (tmp,"Can't open mailbox: %s",strerror (errno));
yuuji@0 346 mm_log (tmp,ERROR);
yuuji@0 347 return NIL;
yuuji@0 348 }
yuuji@0 349 stream->rdonly = T; /* this driver is readonly */
yuuji@0 350 stream->local = fs_get (sizeof (BEZERKLOCAL));
yuuji@0 351 /* canonicalize the stream mailbox name */
yuuji@0 352 fs_give ((void **) &stream->mailbox);
yuuji@0 353 if (s = strchr ((s = strrchr (tmp,'\\')) ? s : tmp,'.')) *s = '\0';
yuuji@0 354 stream->mailbox = cpystr (tmp);
yuuji@0 355 LOCAL->fd = fd; /* note the file */
yuuji@0 356 LOCAL->filesize = 0; /* initialize parsed file size */
yuuji@0 357 LOCAL->buf = NIL; /* initially no local buffer */
yuuji@0 358 stream->sequence++; /* bump sequence number */
yuuji@0 359 stream->uid_validity = time (0);
yuuji@0 360 /* parse mailbox */
yuuji@0 361 stream->nmsgs = stream->recent = 0;
yuuji@0 362 if (!bezerk_ping (stream)) return NIL;
yuuji@0 363 if (!stream->nmsgs) mm_log ("Mailbox is empty",(long) NIL);
yuuji@0 364 stream->perm_seen = stream->perm_deleted =
yuuji@0 365 stream->perm_flagged = stream->perm_answered = stream->perm_draft = NIL;
yuuji@0 366 stream->perm_user_flags = NIL;
yuuji@0 367 return stream; /* return stream to caller */
yuuji@0 368 }
yuuji@0 369
yuuji@0 370 /* Berkeley mail close
yuuji@0 371 * Accepts: MAIL stream
yuuji@0 372 * close options
yuuji@0 373 */
yuuji@0 374
yuuji@0 375 void bezerk_close (MAILSTREAM *stream,long options)
yuuji@0 376 {
yuuji@0 377 if (stream && LOCAL) { /* only if a file is open */
yuuji@0 378 int silent = stream->silent;
yuuji@0 379 stream->silent = T;
yuuji@0 380 if (options & CL_EXPUNGE) bezerk_expunge (stream,NIL,NIL);
yuuji@0 381 close (LOCAL->fd); /* close the local file */
yuuji@0 382 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
yuuji@0 383 /* nuke the local data */
yuuji@0 384 fs_give ((void **) &stream->local);
yuuji@0 385 stream->dtb = NIL; /* log out the DTB */
yuuji@0 386 }
yuuji@0 387 }
yuuji@0 388
yuuji@0 389 /* Berkeley mail fetch message header
yuuji@0 390 * Accepts: MAIL stream
yuuji@0 391 * message # to fetch
yuuji@0 392 * pointer to returned header text length
yuuji@0 393 * option flags
yuuji@0 394 * Returns: message header in RFC822 format
yuuji@0 395 */
yuuji@0 396
yuuji@0 397 char *bezerk_header (MAILSTREAM *stream,unsigned long msgno,
yuuji@0 398 unsigned long *length,long flags)
yuuji@0 399 {
yuuji@0 400 char tmp[MAILTMPLEN];
yuuji@0 401 *length = 0; /* default to empty */
yuuji@0 402 if (flags & FT_UID) return "";/* UID call "impossible" */
yuuji@0 403 /* get to header position */
yuuji@0 404 lseek (LOCAL->fd,bezerk_hdrpos (stream,msgno,length),L_SET);
yuuji@0 405 /* is buffer big enough? */
yuuji@0 406 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
yuuji@0 407 LOCAL->buf = (char *) fs_get ((size_t) *length + 1);
yuuji@0 408 LOCAL->buf[*length] = '\0'; /* tie off string */
yuuji@0 409 /* slurp the data */
yuuji@0 410 read (LOCAL->fd,LOCAL->buf,(size_t) *length);
yuuji@0 411 return LOCAL->buf;
yuuji@0 412 }
yuuji@0 413
yuuji@0 414
yuuji@0 415 /* Berkeley mail fetch message text (body only)
yuuji@0 416 * Accepts: MAIL stream
yuuji@0 417 * message # to fetch
yuuji@0 418 * pointer to returned header text length
yuuji@0 419 * option flags
yuuji@0 420 * Returns: T, always
yuuji@0 421 */
yuuji@0 422
yuuji@0 423 long bezerk_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags)
yuuji@0 424 {
yuuji@0 425 MESSAGECACHE *elt;
yuuji@0 426 FDDATA d;
yuuji@0 427 unsigned long hdrsize,hdrpos;
yuuji@0 428 /* UID call "impossible" */
yuuji@0 429 if (flags & FT_UID) return NIL;
yuuji@0 430 elt = mail_elt (stream,msgno);/* if message not seen */
yuuji@0 431 /* mark message as seen */
yuuji@0 432 if (elt->seen && !(flags & FT_PEEK)) {
yuuji@0 433 elt->seen = T;
yuuji@0 434 mm_flags (stream,msgno);
yuuji@0 435 }
yuuji@0 436 /* get location of text data */
yuuji@0 437 hdrpos = bezerk_hdrpos (stream,msgno,&hdrsize);
yuuji@0 438 d.fd = LOCAL->fd; /* set initial stringstruct */
yuuji@0 439 d.pos = hdrpos + hdrsize;
yuuji@0 440 /* flush old buffer */
yuuji@0 441 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
yuuji@0 442 d.chunk = LOCAL->buf = (char *) fs_get ((size_t) d.chunksize = CHUNKSIZE);
yuuji@0 443 INIT (bs,fd_string,(void *) &d,elt->rfc822_size - hdrsize);
yuuji@0 444 return T; /* success */
yuuji@0 445 }
yuuji@0 446
yuuji@0 447 /* Berkeley mail ping mailbox
yuuji@0 448 * Accepts: MAIL stream
yuuji@0 449 * Returns: T if stream still alive, NIL if not
yuuji@0 450 */
yuuji@0 451
yuuji@0 452 long bezerk_ping (MAILSTREAM *stream)
yuuji@0 453 {
yuuji@0 454 /* punt if stream no longer alive */
yuuji@0 455 if (!(stream && LOCAL)) return NIL;
yuuji@0 456 /* parse mailbox, punt if parse dies */
yuuji@0 457 return (bezerk_parse (stream)) ? T : NIL;
yuuji@0 458 }
yuuji@0 459
yuuji@0 460
yuuji@0 461 /* Berkeley mail check mailbox (reparses status too)
yuuji@0 462 * Accepts: MAIL stream
yuuji@0 463 */
yuuji@0 464
yuuji@0 465 void bezerk_check (MAILSTREAM *stream)
yuuji@0 466 {
yuuji@0 467 unsigned long i = 1;
yuuji@0 468 if (bezerk_ping (stream)) { /* ping mailbox */
yuuji@0 469 /* get new message status */
yuuji@0 470 while (i <= stream->nmsgs) mail_elt (stream,i++);
yuuji@0 471 mm_log ("Check completed",(long) NIL);
yuuji@0 472 }
yuuji@0 473 }
yuuji@0 474
yuuji@0 475 /* Berkeley mail expunge mailbox
yuuji@0 476 * Accepts: MAIL stream
yuuji@0 477 * sequence to expunge if non-NIL
yuuji@0 478 * expunge options
yuuji@0 479 * Returns: T, always
yuuji@0 480 */
yuuji@0 481
yuuji@0 482 long bezerk_expunge (MAILSTREAM *stream,char *sequence,long options)
yuuji@0 483 {
yuuji@0 484 if (!stream->silent) mm_log ("Expunge ignored on readonly mailbox",WARN);
yuuji@0 485 return LONGT;
yuuji@0 486 }
yuuji@0 487
yuuji@0 488 /* Berkeley mail copy message(s)
yuuji@0 489 * Accepts: MAIL stream
yuuji@0 490 * sequence
yuuji@0 491 * destination mailbox
yuuji@0 492 * copy options
yuuji@0 493 * Returns: T if success, NIL if failed
yuuji@0 494 */
yuuji@0 495
yuuji@0 496 long bezerk_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
yuuji@0 497 {
yuuji@0 498 char tmp[MAILTMPLEN];
yuuji@0 499 struct stat sbuf;
yuuji@0 500 MESSAGECACHE *elt;
yuuji@0 501 unsigned long i,j,k;
yuuji@0 502 int fd;
yuuji@0 503 mailproxycopy_t pc =
yuuji@0 504 (mailproxycopy_t) mail_parameters (stream,GET_MAILPROXYCOPY,NIL);
yuuji@0 505 if (!((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
yuuji@0 506 mail_sequence (stream,sequence))) return NIL;
yuuji@0 507 /* make sure valid mailbox */
yuuji@0 508 if (!bezerk_isvalid (mailbox,tmp) && errno) {
yuuji@0 509 if (errno == ENOENT)
yuuji@0 510 mm_notify (stream,"[TRYCREATE] Must create mailbox before append",
yuuji@0 511 (long) NIL);
yuuji@0 512 else if (pc) return (*pc) (stream,sequence,mailbox,options);
yuuji@0 513 else if (mailboxfile (tmp,mailbox)) {
yuuji@0 514 sprintf (tmp,"Not a Bezerk-format mailbox: %s",mailbox);
yuuji@0 515 mm_log (tmp,ERROR);
yuuji@0 516 }
yuuji@0 517 else bezerk_badname (tmp,mailbox);
yuuji@0 518 return NIL;
yuuji@0 519 }
yuuji@0 520 /* open the destination */
yuuji@0 521 if (!mailboxfile (tmp,mailbox) ||
yuuji@0 522 (fd = open (tmp,O_BINARY|O_WRONLY|O_APPEND|O_CREAT,
yuuji@0 523 S_IREAD|S_IWRITE)) < 0) {
yuuji@0 524 sprintf (tmp,"Unable to open copy mailbox: %s",strerror (errno));
yuuji@0 525 mm_log (tmp,ERROR);
yuuji@0 526 return NIL;
yuuji@0 527 }
yuuji@0 528
yuuji@0 529 mm_critical (stream); /* go critical */
yuuji@0 530 fstat (fd,&sbuf); /* get current file size */
yuuji@0 531 /* for each requested message */
yuuji@0 532 for (i = 1; i <= stream->nmsgs; i++)
yuuji@0 533 if ((elt = mail_elt (stream,i))->sequence) {
yuuji@0 534 lseek (LOCAL->fd,elt->private.special.offset,SEEK_SET);
yuuji@0 535 /* number of bytes to copy */
yuuji@0 536 j = elt->private.msg.full.offset + elt->rfc822_size;
yuuji@0 537 do { /* read from source position */
yuuji@0 538 k = min (j,(unsigned long) MAILTMPLEN);
yuuji@0 539 read (LOCAL->fd,tmp,(unsigned int) k);
yuuji@0 540 if (write (fd,tmp,(unsigned int) k) < 0) {
yuuji@0 541 sprintf (tmp,"Unable to write message: %s",strerror (errno));
yuuji@0 542 mm_log (tmp,ERROR);
yuuji@0 543 chsize (fd,sbuf.st_size);
yuuji@0 544 close (fd); /* punt */
yuuji@0 545 mm_nocritical (stream);
yuuji@0 546 return NIL;
yuuji@0 547 }
yuuji@0 548 } while (j -= k); /* until done */
yuuji@0 549 }
yuuji@0 550 close (fd); /* close the file */
yuuji@0 551 mm_nocritical (stream); /* release critical */
yuuji@0 552 /* delete all requested messages */
yuuji@0 553 if (options & CP_MOVE) for (i = 1; i <= stream->nmsgs; i++)
yuuji@0 554 if ((elt = mail_elt (stream,i))->sequence) elt->deleted = T;
yuuji@0 555 if (mail_parameters (NIL,GET_COPYUID,NIL))
yuuji@0 556 mm_log ("Can not return meaningful COPYUID with this mailbox format",WARN);
yuuji@0 557 return T;
yuuji@0 558 }
yuuji@0 559
yuuji@0 560 /* Berkeley mail append message from stringstruct
yuuji@0 561 * Accepts: MAIL stream
yuuji@0 562 * destination mailbox
yuuji@0 563 * append callback
yuuji@0 564 * data for callback
yuuji@0 565 * Returns: T if append successful, else NIL
yuuji@0 566 */
yuuji@0 567
yuuji@0 568 #define BUFLEN MAILTMPLEN
yuuji@0 569
yuuji@0 570 long bezerk_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
yuuji@0 571 {
yuuji@0 572 struct stat sbuf;
yuuji@0 573 int fd;
yuuji@0 574 unsigned long i,j;
yuuji@0 575 char *flags,*date,buf[BUFLEN],tmp[MAILTMPLEN],file[MAILTMPLEN];
yuuji@0 576 FILE *sf,*df;
yuuji@0 577 MESSAGECACHE elt;
yuuji@0 578 STRING *message;
yuuji@0 579 long ret = LONGT;
yuuji@0 580 /* default stream to prototype */
yuuji@0 581 if (!stream) stream = &bezerkproto;
yuuji@0 582 /* make sure valid mailbox */
yuuji@0 583 if (!bezerk_isvalid (mailbox,tmp) && errno) {
yuuji@0 584 if (errno == ENOENT) {
yuuji@0 585 if (((mailbox[0] == 'I') || (mailbox[0] == 'i')) &&
yuuji@0 586 ((mailbox[1] == 'N') || (mailbox[1] == 'n')) &&
yuuji@0 587 ((mailbox[2] == 'B') || (mailbox[2] == 'b')) &&
yuuji@0 588 ((mailbox[3] == 'O') || (mailbox[3] == 'o')) &&
yuuji@0 589 ((mailbox[4] == 'X') || (mailbox[4] == 'x')) && !mailbox[5])
yuuji@0 590 bezerk_create (NIL,"INBOX");
yuuji@0 591 else {
yuuji@0 592 mm_notify (stream,"[TRYCREATE] Must create mailbox before append",NIL);
yuuji@0 593 return NIL;
yuuji@0 594 }
yuuji@0 595 }
yuuji@0 596 else if (mailboxfile (tmp,mailbox)) {
yuuji@0 597 sprintf (tmp,"Not a Bezerk-format mailbox: %.80ss",mailbox);
yuuji@0 598 mm_log (tmp,ERROR);
yuuji@0 599 }
yuuji@0 600 else bezerk_badname (tmp,mailbox);
yuuji@0 601 return NIL;
yuuji@0 602 }
yuuji@0 603 tzset (); /* initialize timezone stuff */
yuuji@0 604 /* get first message */
yuuji@0 605 if (!(*af) (stream,data,&flags,&date,&message)) return NIL;
yuuji@0 606 if (!(sf = tmpfile ())) { /* must have scratch file */
yuuji@0 607 sprintf (tmp,"Unable to create scratch file: %.80s",strerror (errno));
yuuji@0 608 mm_log (tmp,ERROR);
yuuji@0 609 }
yuuji@0 610
yuuji@0 611 do { /* parse date */
yuuji@0 612 if (!date) rfc822_date (date = tmp);
yuuji@0 613 if (!mail_parse_date (&elt,date)) {
yuuji@0 614 sprintf (tmp,"Bad date in append: %.80s",date);
yuuji@0 615 mm_log (tmp,ERROR);
yuuji@0 616 }
yuuji@0 617 else { /* user wants to suppress time zones? */
yuuji@0 618 if (mail_parameters (NIL,GET_NOTIMEZONES,NIL)) {
yuuji@0 619 time_t when = mail_longdate (&elt);
yuuji@0 620 date = ctime (&when); /* use traditional date */
yuuji@0 621 }
yuuji@0 622 /* use POSIX-style date */
yuuji@0 623 else date = mail_cdate (tmp,&elt);
yuuji@0 624 if (!SIZE (message)) mm_log ("Append of zero-length message",ERROR);
yuuji@0 625 else if (!bezerk_append_msg (stream,sf,flags,date,message)) {
yuuji@0 626 sprintf (tmp,"Error writing scratch file: %.80s",strerror (errno));
yuuji@0 627 mm_log (tmp,ERROR);
yuuji@0 628 }
yuuji@0 629 /* get next message */
yuuji@0 630 else if ((*af) (stream,data,&flags,&date,&message)) continue;
yuuji@0 631 }
yuuji@0 632 fclose (sf); /* punt scratch file */
yuuji@0 633 return NIL; /* give up */
yuuji@0 634 } while (message); /* until no more messages */
yuuji@0 635 if (fflush (sf) || fstat (fileno (sf),&sbuf)) {
yuuji@0 636 sprintf (tmp,"Error finishing scratch file: %.80s",strerror (errno));
yuuji@0 637 mm_log (tmp,ERROR);
yuuji@0 638 fclose (sf); /* punt scratch file */
yuuji@0 639 return NIL; /* give up */
yuuji@0 640 }
yuuji@0 641 i = sbuf.st_size; /* size of scratch file */
yuuji@0 642
yuuji@0 643 mm_critical (stream); /* go critical */
yuuji@0 644 /* open the destination */
yuuji@0 645 if (!mailboxfile (tmp,mailbox) ||
yuuji@0 646 ((fd = open (tmp,O_BINARY|O_WRONLY|O_APPEND|O_CREAT,
yuuji@0 647 S_IREAD|S_IWRITE)) < 0) ||
yuuji@0 648 !(df = fdopen (fd,"ab"))) {
yuuji@0 649 mm_nocritical (stream); /* done with critical */
yuuji@0 650 sprintf (tmp,"Can't open append mailbox: %s",strerror (errno));
yuuji@0 651 mm_log (tmp,ERROR);
yuuji@0 652 return NIL;
yuuji@0 653 }
yuuji@0 654 fstat (fd,&sbuf); /* get current file size */
yuuji@0 655 while (i) /* until written all bytes */
yuuji@0 656 if ((j = fread (buf,1,min ((long) BUFLEN,i),sf)) &&
yuuji@0 657 (fwrite (buf,1,j,df) == j)) i -= j;
yuuji@0 658 fclose (sf); /* done with scratch file */
yuuji@0 659 /* make sure append wins */
yuuji@0 660 if (i || (fflush (df) == EOF)) {
yuuji@0 661 chsize (fd,sbuf.st_size); /* revert file */
yuuji@0 662 close (fd); /* make sure fclose() doesn't corrupt us */
yuuji@0 663 sprintf (buf,"Message append failed: %s",strerror (errno));
yuuji@0 664 mm_log (buf,ERROR);
yuuji@0 665 ret = NIL; /* return error */
yuuji@0 666 }
yuuji@0 667 fclose (df);
yuuji@0 668 mm_nocritical (stream); /* release critical */
yuuji@0 669 if (ret && mail_parameters (NIL,GET_APPENDUID,NIL))
yuuji@0 670 mm_log ("Can not return meaningful APPENDUID with this mailbox format",
yuuji@0 671 WARN);
yuuji@0 672 return ret;
yuuji@0 673 }
yuuji@0 674
yuuji@0 675 /* Write single message to append scratch file
yuuji@0 676 * Accepts: MAIL stream
yuuji@0 677 * scratch file
yuuji@0 678 * flags
yuuji@0 679 * message stringstruct
yuuji@0 680 * Returns: NIL if write error, else T
yuuji@0 681 */
yuuji@0 682
yuuji@0 683 int bezerk_append_msg (MAILSTREAM *stream,FILE *sf,char *flags,char *date,
yuuji@0 684 STRING *msg)
yuuji@0 685 {
yuuji@0 686 int c;
yuuji@0 687 unsigned long i,uf;
yuuji@0 688 char tmp[MAILTMPLEN];
yuuji@0 689 long f = mail_parse_flags (stream,flags,&uf);
yuuji@0 690 /* build initial header */
yuuji@0 691 if ((fprintf (sf,"From %s@%s %sStatus: ",
yuuji@0 692 myusername (),mylocalhost (),date) < 0) ||
yuuji@0 693 (f&fSEEN && (putc ('R',sf) == EOF)) ||
yuuji@0 694 (fputs ("\nX-Status: ",sf) == EOF) ||
yuuji@0 695 (f&fDELETED && (putc ('D',sf) == EOF)) ||
yuuji@0 696 (f&fFLAGGED && (putc ('F',sf) == EOF)) ||
yuuji@0 697 (f&fANSWERED && (putc ('A',sf) == EOF)) ||
yuuji@0 698 (f&fDRAFT && (putc ('T',sf) == EOF)) ||
yuuji@0 699 (fputs ("\nX-Keywords:",sf) == EOF)) return NIL;
yuuji@0 700 while (uf) /* write user flags */
yuuji@0 701 if (fprintf (sf," %s",stream->user_flags[find_rightmost_bit (&uf)]) < 0)
yuuji@0 702 return NIL;
yuuji@0 703 /* tie off flags */
yuuji@0 704 if (putc ('\n',sf) == EOF) return NIL;
yuuji@0 705 while (SIZE (msg)) { /* copy text to scratch file */
yuuji@0 706 /* possible delimiter if line starts with F */
yuuji@0 707 if ((c = 0xff & SNX (msg)) == 'F') {
yuuji@0 708 /* copy line to buffer */
yuuji@0 709 for (i = 1,tmp[0] = c; SIZE (msg) && (c != '\n') && (i < MAILTMPLEN);)
yuuji@0 710 if (((c = 0xff & SNX (msg)) != '\r') || !(SIZE (msg)) ||
yuuji@0 711 (CHR (msg) != '\n')) tmp[i++] = c;
yuuji@0 712 if ((i > 4) && (tmp[1] == 'r') && (tmp[2] == 'o') && (tmp[3] == 'm') &&
yuuji@0 713 (tmp[4] == ' ')) { /* possible "From " line? */
yuuji@0 714 /* yes, see if need to write a widget */
yuuji@0 715 if (((c != '\n') || bezerk_valid_line (tmp,NIL,NIL)) &&
yuuji@0 716 (putc ('>',sf) == EOF)) return NIL;
yuuji@0 717 }
yuuji@0 718 /* write buffered text */
yuuji@0 719 if (fwrite (tmp,1,i,sf) != i) return NIL;
yuuji@0 720 if (c == '\n') continue; /* all done if got a complete line */
yuuji@0 721 }
yuuji@0 722 /* copy line, toss out CR from CRLF */
yuuji@0 723 do if (((c == '\r') && SIZE (msg) && ((c = 0xff & SNX (msg)) != '\n') &&
yuuji@0 724 (putc ('\r',sf) == EOF)) || (putc (c,sf) == EOF)) return NIL;
yuuji@0 725 while ((c != '\n') && SIZE (msg) && ((c = 0xff & SNX (msg)) ? c : T));
yuuji@0 726 }
yuuji@0 727 /* write trailing newline and return */
yuuji@0 728 return (putc ('\n',sf) == EOF) ? NIL : T;
yuuji@0 729 }
yuuji@0 730
yuuji@0 731
yuuji@0 732 /* Return bad file name error message
yuuji@0 733 * Accepts: temporary buffer
yuuji@0 734 * file name
yuuji@0 735 * Returns: long NIL always
yuuji@0 736 */
yuuji@0 737
yuuji@0 738 long bezerk_badname (char *tmp,char *s)
yuuji@0 739 {
yuuji@0 740 sprintf (tmp,"Invalid mailbox name: %s",s);
yuuji@0 741 mm_log (tmp,ERROR);
yuuji@0 742 return (long) NIL;
yuuji@0 743 }
yuuji@0 744
yuuji@0 745 /* Parse mailbox
yuuji@0 746 * Accepts: MAIL stream
yuuji@0 747 * Returns: T if parse OK
yuuji@0 748 * NIL if failure, stream aborted
yuuji@0 749 */
yuuji@0 750
yuuji@0 751 long bezerk_parse (MAILSTREAM *stream)
yuuji@0 752 {
yuuji@0 753 struct stat sbuf;
yuuji@0 754 MESSAGECACHE *elt;
yuuji@0 755 char *s,*t,tmp[MAILTMPLEN + 1],*db,datemsg[100];
yuuji@0 756 long i;
yuuji@0 757 int j,ti,zn;
yuuji@0 758 long curpos = LOCAL->filesize;
yuuji@0 759 long nmsgs = stream->nmsgs;
yuuji@0 760 long recent = stream->recent;
yuuji@0 761 short silent = stream->silent;
yuuji@0 762 fstat (LOCAL->fd,&sbuf); /* get status */
yuuji@0 763 if (sbuf.st_size < curpos) { /* sanity check */
yuuji@0 764 sprintf (tmp,"Mailbox shrank from %ld to %ld!",curpos,sbuf.st_size);
yuuji@0 765 mm_log (tmp,ERROR);
yuuji@0 766 bezerk_close (stream,NIL);
yuuji@0 767 return NIL;
yuuji@0 768 }
yuuji@0 769 stream->silent = T; /* don't pass up mm_exists() events yet */
yuuji@0 770 db = datemsg + strlen (strcpy (datemsg,"Unparsable date: "));
yuuji@0 771 /* while there is data to read */
yuuji@0 772 while (i = sbuf.st_size - curpos){
yuuji@0 773 /* get to that position in the file */
yuuji@0 774 lseek (LOCAL->fd,curpos,SEEK_SET);
yuuji@0 775 /* read first buffer's worth */
yuuji@0 776 read (LOCAL->fd,tmp,j = (int) min (i,(long) MAILTMPLEN));
yuuji@0 777 tmp[j] = '\0'; /* tie off buffer */
yuuji@0 778 if (!(ti = bezerk_valid_line (tmp,&t,&zn))) {
yuuji@0 779 mm_log ("Mailbox format invalidated (consult an expert), aborted",ERROR);
yuuji@0 780 bezerk_close (stream,NIL);
yuuji@0 781 return NIL;
yuuji@0 782 }
yuuji@0 783
yuuji@0 784 /* swell the cache */
yuuji@0 785 mail_exists (stream,++nmsgs);
yuuji@0 786 /* instantiate an elt for this message */
yuuji@0 787 (elt = mail_elt (stream,nmsgs))->valid = T;
yuuji@0 788 elt->private.uid = ++stream->uid_last;
yuuji@0 789 /* note file offset of header */
yuuji@0 790 elt->private.special.offset = curpos;
yuuji@0 791 /* note offset of message */
yuuji@0 792 elt->private.msg.full.offset =
yuuji@0 793 (s = ((*t == '\015') ? (t + 2) : (t + 1))) - tmp;
yuuji@0 794 /* generate plausable IMAPish date string */
yuuji@0 795 db[2] = db[6] = db[20] = '-'; db[11] = ' '; db[14] = db[17] = ':';
yuuji@0 796 /* dd */
yuuji@0 797 db[0] = t[ti - 2]; db[1] = t[ti - 1];
yuuji@0 798 /* mmm */
yuuji@0 799 db[3] = t[ti - 6]; db[4] = t[ti - 5]; db[5] = t[ti - 4];
yuuji@0 800 /* hh */
yuuji@0 801 db[12] = t[ti + 1]; db[13] = t[ti + 2];
yuuji@0 802 /* mm */
yuuji@0 803 db[15] = t[ti + 4]; db[16] = t[ti + 5];
yuuji@0 804 if (t[ti += 6] == ':') { /* ss if present */
yuuji@0 805 db[18] = t[++ti]; db[19] = t[++ti];
yuuji@0 806 ti++; /* move to space */
yuuji@0 807 }
yuuji@0 808 else db[18] = db[19] = '0'; /* assume 0 seconds */
yuuji@0 809 /* yy -- advance over timezone if necessary */
yuuji@0 810 if (++zn == ++ti) ti += (((t[zn] == '+') || (t[zn] == '-')) ? 6 : 4);
yuuji@0 811 db[7] = t[ti]; db[8] = t[ti + 1]; db[9] = t[ti + 2]; db[10] = t[ti + 3];
yuuji@0 812 t = zn ? (t + zn) : "LCL"; /* zzz */
yuuji@0 813 db[21] = *t++; db[22] = *t++; db[23] = *t++;
yuuji@0 814 if ((db[21] != '+') && (db[21] != '-')) db[24] = '\0';
yuuji@0 815 else { /* numeric time zone */
yuuji@0 816 db[20] = ' '; db[24] = *t++; db[25] = *t++; db[26] = '\0';
yuuji@0 817 }
yuuji@0 818 /* set internal date */
yuuji@0 819 if (!mail_parse_date (elt,db)) mm_log (datemsg,WARN);
yuuji@0 820
yuuji@0 821 curpos += s - tmp; /* advance position after header */
yuuji@0 822 t = strchr (s,'\012'); /* start of next line */
yuuji@0 823 /* find start of next message */
yuuji@0 824 while (!(bezerk_valid_line (s,NIL,NIL))) {
yuuji@0 825 if (t) { /* have next line? */
yuuji@0 826 t++; /* advance to new line */
yuuji@0 827 curpos += t - s; /* update position and size */
yuuji@0 828 elt->rfc822_size += ((t - s) + ((t[-2] == '\015') ? 0 : 1));
yuuji@0 829 s = t; /* move to next line */
yuuji@0 830 t = strchr (s,'\012');
yuuji@0 831 }
yuuji@0 832 else { /* try next buffer */
yuuji@0 833 j = strlen (s); /* length of unread data in buffer */
yuuji@0 834 if ((i = sbuf.st_size - curpos) && (i != j)) {
yuuji@0 835 /* get to that position in the file */
yuuji@0 836 lseek (LOCAL->fd,curpos,SEEK_SET);
yuuji@0 837 /* read another buffer's worth */
yuuji@0 838 read (LOCAL->fd,s = tmp,j = (int) min (i,(long) MAILTMPLEN));
yuuji@0 839 tmp[j] = '\0'; /* tie off buffer */
yuuji@0 840 if (!(t = strchr (s,'\012'))) fatal ("Line too long in mailbox");
yuuji@0 841 }
yuuji@0 842 else {
yuuji@0 843 curpos += j; /* last bit of data */
yuuji@0 844 elt->rfc822_size += j;
yuuji@0 845 break;
yuuji@0 846 }
yuuji@0 847 }
yuuji@0 848 }
yuuji@0 849 }
yuuji@0 850 /* update parsed file size */
yuuji@0 851 LOCAL->filesize = sbuf.st_size;
yuuji@0 852 stream->silent = silent; /* can pass up events now */
yuuji@0 853 mail_exists (stream,nmsgs); /* notify upper level of new mailbox size */
yuuji@0 854 mail_recent (stream,recent); /* and of change in recent messages */
yuuji@0 855 return T; /* return the winnage */
yuuji@0 856 }
yuuji@0 857
yuuji@0 858 /* Berkeley locate header for a message
yuuji@0 859 * Accepts: MAIL stream
yuuji@0 860 * message number
yuuji@0 861 * pointer to returned header size
yuuji@0 862 * Returns: position of header in file
yuuji@0 863 */
yuuji@0 864
yuuji@0 865 unsigned long bezerk_hdrpos (MAILSTREAM *stream,unsigned long msgno,
yuuji@0 866 unsigned long *size)
yuuji@0 867 {
yuuji@0 868 long siz;
yuuji@0 869 size_t i = 0;
yuuji@0 870 char c = '\0';
yuuji@0 871 char *s;
yuuji@0 872 char tmp[MAILTMPLEN];
yuuji@0 873 MESSAGECACHE *elt = mail_elt (stream,msgno);
yuuji@0 874 long pos = elt->private.special.offset + elt->private.msg.full.offset;
yuuji@0 875 /* is size known? */
yuuji@0 876 if (!(*size = elt->private.msg.header.text.size)) {
yuuji@0 877 /* get to header position */
yuuji@0 878 lseek (LOCAL->fd,pos,SEEK_SET);
yuuji@0 879 /* search message for CRLF CRLF */
yuuji@0 880 for (siz = 1; siz <= elt->rfc822_size; siz++) {
yuuji@0 881 if (!i && /* buffer empty? */
yuuji@0 882 (read (LOCAL->fd,s = tmp,
yuuji@0 883 i = (size_t) min(elt->rfc822_size-siz,(long)MAILTMPLEN))<= 0))
yuuji@0 884 return pos;
yuuji@0 885 else i--;
yuuji@0 886 /* two newline sequence? */
yuuji@0 887 if ((c == '\012') && (*s == '\012')) {
yuuji@0 888 /* yes, note for later */
yuuji@0 889 elt->private.msg.header.text.size = (*size = siz);
yuuji@0 890 return pos; /* return to caller */
yuuji@0 891 }
yuuji@0 892 else if ((c == '\012') && (*s == '\015')) {
yuuji@0 893 /* yes, note for later */
yuuji@0 894 elt->private.msg.header.text.size = (*size = siz + 1);
yuuji@0 895 return pos; /* return to caller */
yuuji@0 896 }
yuuji@0 897 else c = *s++; /* next character */
yuuji@0 898 }
yuuji@0 899 }
yuuji@0 900 return pos; /* have position */
yuuji@0 901 }

UW-IMAP'd extensions by yuuji