src/mbox.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25
  26 #define _GNU_SOURCE
  27 #include <stdio.h>
  28
  29 #ifdef USE_PTHREAD
  30 #include <pthread.h>
  31 #endif
  32
  33 #include "defs.h"
  34 #include <glib.h>
  35 #include <glib/gi18n.h>
  36 #include <stdlib.h>
  37 #include <unistd.h>
  38 #include <string.h>
  39 #include <fcntl.h>
  40 #include <sys/file.h>
  41 #include <ctype.h>
  42 #include <time.h>
  43 #include <errno.h>
  44
  45 #ifdef G_OS_WIN32
  46 #  include <w32lib.h>
  47 #endif
  48
  49 #include "mbox.h"
  50 #include "procmsg.h"
  51 #include "folder.h"
  52 #include "prefs_common.h"
  53 #include "prefs_account.h"
  54 #include "account.h"
  55 #include "utils.h"
  56 #include "filtering.h"
  57 #include "alertpanel.h"
  58 #include "statusbar.h"
  59
  60 #define MESSAGEBUFSIZE  8192
  61
  62 #ifdef HAVE_FGETS_UNLOCKED
  63 #define SC_FGETS fgets_unlocked
  64 #define SC_FPUTS fputs_unlocked
  65 #define SC_FPUTC fputc_unlocked
  66 #else
  67 #define SC_FGETS fgets
  68 #define SC_FPUTS fputs
  69 #define SC_FPUTC fputc
  70 #endif
  71
  72 #define FPUTS_TO_TMP_ABORT_IF_FAIL(s) \
  73 { \
  74         lines++; \
  75         if (fputs(s, tmp_fp) == EOF) { \
  76                 g_warning("can't write to temporary file\n"); \
  77                 fclose(tmp_fp); \
  78                 fclose(mbox_fp); \
  79                 claws_unlink(tmp_file); \
  80                 g_free(tmp_file); \
  81                 return -1; \
  82         } \
  83 }
  84
  85 gint proc_mbox(FolderItem *dest, const gchar *mbox, gboolean apply_filter,
  86                PrefsAccount *account)
  87 /* return values: -1 error, >=0 number of msgs added */
  88 {
  89         FILE *mbox_fp;
  90         gchar buf[MESSAGEBUFSIZE];
  91         gchar *tmp_file;
  92         gint msgs = 0;
  93         gint lines;
  94         MsgInfo *msginfo;
  95         gboolean more;
  96         GSList *to_filter = NULL, *filtered = NULL, *unfiltered = NULL, *cur, *to_add = NULL;
  97         gboolean printed = FALSE;
  98         FolderItem *dropfolder;
  99
 100         cm_return_val_if_fail(dest != NULL, -1);
 101         cm_return_val_if_fail(mbox != NULL, -1);
 102
 103         debug_print("Getting messages from %s into %s...\n", mbox, dest->path);
 104
 105         if ((mbox_fp = g_fopen(mbox, "rb")) == NULL) {
 106                 FILE_OP_ERROR(mbox, "fopen");
 107                 alertpanel_error(_("Could not open mbox file:\n%s\n"), mbox);
 108                 return -1;
 109         }
 110
 111         /* ignore empty lines on the head */
 112         do {
 113                 if (fgets(buf, sizeof(buf), mbox_fp) == NULL) {
 114                         g_warning("can't read mbox file.\n");
 115                         fclose(mbox_fp);
 116                         return -1;
 117                 }
 118         } while (buf[0] == '\n' || buf[0] == '\r');
 119
 120         if (strncmp(buf, "From ", 5) != 0) {
 121                 g_warning("invalid mbox format: %s\n", mbox);
 122                 fclose(mbox_fp);
 123                 return -1;
 124         }
 125
 126         tmp_file = get_tmp_file();
 127
 128         folder_item_update_freeze();
 129
 130         if (apply_filter)
 131                 dropfolder = folder_get_default_processing();
 132         else
 133                 dropfolder = dest;
 134
 135         do {
 136                 FILE *tmp_fp;
 137                 gint empty_lines;
 138                 gint msgnum;
 139
 140                 if (msgs > 0 && msgs%500 == 0) {
 141                         if (printed)
 142                                 statusbar_pop_all();
 143                         statusbar_print_all(_("Importing from mbox... (%d mails imported)"), msgs);
 144                         printed=TRUE;
 145                         GTK_EVENTS_FLUSH();
 146                 }
 147
 148                 if ((tmp_fp = g_fopen(tmp_file, "wb")) == NULL) {
 149                         FILE_OP_ERROR(tmp_file, "fopen");
 150                         g_warning("can't open temporary file\n");
 151                         fclose(mbox_fp);
 152                         g_free(tmp_file);
 153                         return -1;
 154                 }
 155                 if (change_file_mode_rw(tmp_fp, tmp_file) < 0) {
 156                         FILE_OP_ERROR(tmp_file, "chmod");
 157                 }
 158
 159                 empty_lines = 0;
 160                 lines = 0;
 161
 162                 /* process all lines from mboxrc file */
 163                 while (fgets(buf, sizeof(buf), mbox_fp) != NULL) {
 164                         int offset;
 165
 166                         /* eat empty lines */
 167                         if (buf[0] == '\n' || buf[0] == '\r') {
 168                                 empty_lines++;
 169                                 continue;
 170                         }
 171
 172                         /* From separator or quoted From */
 173                         offset = 0;
 174                         /* detect leading '>' char(s) */
 175                         while ((buf[offset] == '>')) {
 176                                 offset++;
 177                         }
 178                         if (!strncmp(buf+offset, "From ", 5)) {
 179                                 /* From separator: */
 180                                 if (offset == 0) {
 181                                         /* expect next mbox item */
 182                                         break;
 183                                 }
 184
 185                                 /* quoted From: */
 186                                 /* flush any eaten empty line */
 187                                 if (empty_lines > 0) {
 188                                         while (empty_lines-- > 0) {
 189                                                 FPUTS_TO_TMP_ABORT_IF_FAIL("\n");
 190                                 }
 191                                         empty_lines = 0;
 192                                 }
 193                                 /* store the unquoted line */
 194                                 FPUTS_TO_TMP_ABORT_IF_FAIL(buf + 1);
 195                                 continue;
 196                         }
 197
 198                         /* other line */
 199                         /* flush any eaten empty line */
 200                         if (empty_lines > 0) {
 201                                 while (empty_lines-- > 0) {
 202                                         FPUTS_TO_TMP_ABORT_IF_FAIL("\n");
 203                         }
 204                                 empty_lines = 0;
 205                         }
 206                         /* store the line itself */
 207                                         FPUTS_TO_TMP_ABORT_IF_FAIL(buf);
 208                 }
 209                 /* end of mbox item or end of mbox */
 210
 211                 /* flush any eaten empty line (but the last one) */
 212                 if (empty_lines > 0) {
 213                         while (--empty_lines > 0) {
 214                                 FPUTS_TO_TMP_ABORT_IF_FAIL("\n");
 215                         }
 216                 }
 217
 218                 /* more emails to expect? */
 219                 more = !feof(mbox_fp);
 220
 221                 /* warn if email part is empty (it's the minimum check
 222                    we can do */
 223                 if (lines == 0) {
 224                         g_warning("malformed mbox: %s: message %d is empty\n", mbox, msgs);
 225                         fclose(tmp_fp);
 226                         fclose(mbox_fp);
 227                         claws_unlink(tmp_file);
 228                         return -1;
 229                 }
 230
 231                 if (fclose(tmp_fp) == EOF) {
 232                         FILE_OP_ERROR(tmp_file, "fclose");
 233                         g_warning("can't write to temporary file\n");
 234                         fclose(mbox_fp);
 235                         claws_unlink(tmp_file);
 236                         g_free(tmp_file);
 237                         return -1;
 238                 }
 239
 240                 if (apply_filter) {
 241                         if ((msgnum = folder_item_add_msg(dropfolder, tmp_file, NULL, TRUE)) < 0) {
 242                                 fclose(mbox_fp);
 243                                 claws_unlink(tmp_file);
 244                                 g_free(tmp_file);
 245                                 return -1;
 246                         }
 247                         msginfo = folder_item_get_msginfo(dropfolder, msgnum);
 248                         to_filter = g_slist_prepend(to_filter, msginfo);
 249                 } else {
 250                         MsgFileInfo *finfo = g_new0(MsgFileInfo, 1);
 251                         finfo->file = tmp_file;
 252
 253                         to_add = g_slist_prepend(to_add, finfo);
 254                         tmp_file = get_tmp_file();
 255
 256                         /* flush every 500 */
 257                         if (msgs > 0 && msgs % 500 == 0) {
 258                                 folder_item_add_msgs(dropfolder, to_add, TRUE);
 259                                 procmsg_message_file_list_free(to_add);
 260                                 to_add = NULL;
 261                         }
 262                 }
 263                 msgs++;
 264         } while (more);
 265
 266         if (printed)
 267                 statusbar_pop_all();
 268
 269         if (apply_filter) {
 270
 271                 folder_item_set_batch(dropfolder, FALSE);
 272                 procmsg_msglist_filter(to_filter, account,
 273                                 &filtered, &unfiltered, TRUE);
 274                 folder_item_set_batch(dropfolder, TRUE);
 275
 276                 filtering_move_and_copy_msgs(to_filter);
 277                 for (cur = filtered; cur; cur = g_slist_next(cur)) {
 278                         MsgInfo *info = (MsgInfo *)cur->data;
 279                         procmsg_msginfo_free(info);
 280                 }
 281
 282                 unfiltered = g_slist_reverse(unfiltered);
 283                 if (unfiltered) {
 284                         folder_item_move_msgs(dest, unfiltered);
 285                         for (cur = unfiltered; cur; cur = g_slist_next(cur)) {
 286                                 MsgInfo *info = (MsgInfo *)cur->data;
 287                                 procmsg_msginfo_free(info);
 288                         }
 289                 }
 290
 291                 g_slist_free(unfiltered);
 292                 g_slist_free(filtered);
 293                 g_slist_free(to_filter);
 294         } else if (to_add) {
 295                 folder_item_add_msgs(dropfolder, to_add, TRUE);
 296                 procmsg_message_file_list_free(to_add);
 297                 to_add = NULL;
 298         }
 299
 300         folder_item_update_thaw();
 301
 302         g_free(tmp_file);
 303         fclose(mbox_fp);
 304         debug_print("%d messages found.\n", msgs);
 305
 306         return msgs;
 307 }
 308
 309 gint lock_mbox(const gchar *base, LockType type)
 310 {
 311 #ifdef G_OS_UNIX
 312         gint retval = 0;
 313
 314         if (type == LOCK_FILE) {
 315                 gchar *lockfile, *locklink;
 316                 gint retry = 0;
 317                 FILE *lockfp;
 318
 319                 lockfile = g_strdup_printf("%s.%d", base, getpid());
 320                 if ((lockfp = g_fopen(lockfile, "wb")) == NULL) {
 321                         FILE_OP_ERROR(lockfile, "fopen");
 322                         g_warning("can't create lock file %s\n", lockfile);
 323                         g_warning("use 'flock' instead of 'file' if possible.\n");
 324                         g_free(lockfile);
 325                         return -1;
 326                 }
 327
 328                 if (fprintf(lockfp, "%d\n", getpid()) < 0) {
 329                         FILE_OP_ERROR(lockfile, "fprintf");
 330                         g_free(lockfile);
 331                         fclose(lockfp);
 332                         return -1;
 333                 }
 334
 335                 if (fclose(lockfp) == EOF) {
 336                         FILE_OP_ERROR(lockfile, "fclose");
 337                         g_free(lockfile);
 338                         return -1;
 339                 }
 340
 341                 locklink = g_strconcat(base, ".lock", NULL);
 342                 while (link(lockfile, locklink) < 0) {
 343                         FILE_OP_ERROR(lockfile, "link");
 344                         if (retry >= 5) {
 345                                 g_warning("can't create %s\n", lockfile);
 346                                 claws_unlink(lockfile);
 347                                 g_free(lockfile);
 348                                 return -1;
 349                         }
 350                         if (retry == 0)
 351                                 g_warning("mailbox is owned by another"
 352                                             " process, waiting...\n");
 353                         retry++;
 354                         sleep(5);
 355                 }
 356                 claws_unlink(lockfile);
 357                 g_free(lockfile);
 358         } else if (type == LOCK_FLOCK) {
 359                 gint lockfd;
 360                 gboolean fcntled = FALSE;
 361 #if HAVE_FCNTL_H && !defined(G_OS_WIN32)
 362                 struct flock fl;
 363                 fl.l_type = F_WRLCK;
 364                 fl.l_whence = SEEK_SET;
 365                 fl.l_start = 0;
 366                 fl.l_len = 0;
 367 #endif
 368
 369 #if HAVE_FLOCK
 370                 if ((lockfd = g_open(base, O_RDWR, 0)) < 0) {
 371 #else
 372                 if ((lockfd = g_open(base, O_RDWR, 0)) < 0) {
 373 #endif
 374                         FILE_OP_ERROR(base, "open");
 375                         return -1;
 376                 }
 377
 378 #if HAVE_FCNTL_H && !defined(G_OS_WIN32)
 379                 if (fcntl(lockfd, F_SETLK, &fl) == -1) {
 380                         g_warning("can't fnctl %s (%s)", base, strerror(errno));
 381                         return -1;
 382                 } else {
 383                         fcntled = TRUE;
 384                 }
 385 #endif
 386
 387 #if HAVE_FLOCK
 388                 if (flock(lockfd, LOCK_EX|LOCK_NB) < 0 && !fcntled) {
 389                         perror("flock");
 390 #else
 391 #if HAVE_LOCKF
 392                 if (lockf(lockfd, F_TLOCK, 0) < 0 && !fcntled) {
 393                         perror("lockf");
 394 #else
 395                 {
 396 #endif
 397 #endif /* HAVE_FLOCK */
 398                         g_warning("can't lock %s\n", base);
 399                         if (close(lockfd) < 0)
 400                                 perror("close");
 401                         return -1;
 402                 }
 403                 retval = lockfd;
 404         } else {
 405                 g_warning("invalid lock type\n");
 406                 return -1;
 407         }
 408
 409         return retval;
 410 #else
 411         return -1;
 412 #endif /* G_OS_UNIX */
 413 }
 414
 415 gint unlock_mbox(const gchar *base, gint fd, LockType type)
 416 {
 417         if (type == LOCK_FILE) {
 418                 gchar *lockfile;
 419
 420                 lockfile = g_strconcat(base, ".lock", NULL);
 421                 if (claws_unlink(lockfile) < 0) {
 422                         FILE_OP_ERROR(lockfile, "unlink");
 423                         g_free(lockfile);
 424                         return -1;
 425                 }
 426                 g_free(lockfile);
 427
 428                 return 0;
 429         } else if (type == LOCK_FLOCK) {
 430                 gboolean fcntled = FALSE;
 431 #if HAVE_FCNTL_H && !defined(G_OS_WIN32)
 432                 struct flock fl;
 433                 fl.l_type = F_UNLCK;
 434                 fl.l_whence = SEEK_SET;
 435                 fl.l_start = 0;
 436                 fl.l_len = 0;
 437
 438                 if (fcntl(fd, F_SETLK, &fl) == -1) {
 439                         g_warning("can't fnctl %s", base);
 440                 } else {
 441                         fcntled = TRUE;
 442                 }
 443 #endif
 444 #if HAVE_FLOCK
 445                 if (flock(fd, LOCK_UN) < 0 && !fcntled) {
 446                         perror("flock");
 447 #else
 448 #if HAVE_LOCKF
 449                 if (lockf(fd, F_ULOCK, 0) < 0 && !fcntled) {
 450                         perror("lockf");
 451 #else
 452                 {
 453 #endif
 454 #endif /* HAVE_FLOCK */
 455                         g_warning("can't unlock %s\n", base);
 456                         if (close(fd) < 0)
 457                                 perror("close");
 458                         return -1;
 459                 }
 460
 461                 if (close(fd) < 0) {
 462                         perror("close");
 463                         return -1;
 464                 }
 465
 466                 return 0;
 467         }
 468
 469         g_warning("invalid lock type\n");
 470         return -1;
 471 }
 472
 473 gint copy_mbox(gint srcfd, const gchar *dest)
 474 {
 475         FILE *dest_fp;
 476         ssize_t n_read;
 477         gchar buf[BUFSIZ];
 478         gboolean err = FALSE;
 479         int save_errno = 0;
 480
 481         if (srcfd < 0) {
 482                 return -1;
 483         }
 484
 485         if ((dest_fp = g_fopen(dest, "wb")) == NULL) {
 486                 FILE_OP_ERROR(dest, "fopen");
 487                 return -1;
 488         }
 489
 490         if (change_file_mode_rw(dest_fp, dest) < 0) {
 491                 FILE_OP_ERROR(dest, "chmod");
 492                 g_warning("can't change file mode\n");
 493         }
 494
 495         while ((n_read = read(srcfd, buf, sizeof(buf))) > 0) {
 496                 if (n_read == -1 && errno != 0) {
 497                         save_errno = errno;
 498                         break;
 499                 }
 500                 if (fwrite(buf, 1, n_read, dest_fp) < n_read) {
 501                         g_warning("writing to %s failed.\n", dest);
 502                         fclose(dest_fp);
 503                         claws_unlink(dest);
 504                         return -1;
 505                 }
 506         }
 507
 508         if (save_errno != 0) {
 509                 g_warning("error %d reading mbox: %s\n", save_errno,
 510                                 strerror(save_errno));
 511                 err = TRUE;
 512         }
 513
 514         if (fclose(dest_fp) == EOF) {
 515                 FILE_OP_ERROR(dest, "fclose");
 516                 err = TRUE;
 517         }
 518
 519         if (err) {
 520                 claws_unlink(dest);
 521                 return -1;
 522         }
 523
 524         return 0;
 525 }
 526
 527 void empty_mbox(const gchar *mbox)
 528 {
 529         FILE *fp;
 530
 531         if ((fp = g_fopen(mbox, "wb")) == NULL) {
 532                 FILE_OP_ERROR(mbox, "fopen");
 533                 g_warning("can't truncate mailbox to zero.\n");
 534                 return;
 535         }
 536         fclose(fp);
 537 }
 538
 539 gint export_list_to_mbox(GSList *mlist, const gchar *mbox)
 540 /* return values: -2 skipped, -1 error, 0 OK */
 541 {
 542         GSList *cur;
 543         MsgInfo *msginfo;
 544         FILE *msg_fp;
 545         FILE *mbox_fp;
 546         gchar buf[BUFFSIZE];
 547         int err = 0;
 548
 549         gint msgs = 1, total = g_slist_length(mlist);
 550         if (g_file_test(mbox, G_FILE_TEST_EXISTS) == TRUE) {
 551                 if (alertpanel_full(_("Overwrite mbox file"),
 552                                         _("This file already exists. Do you want to overwrite it?"),
 553                                         GTK_STOCK_CANCEL, _("Overwrite"), NULL, FALSE,
 554                                         NULL, ALERT_WARNING, G_ALERTDEFAULT)
 555                                 != G_ALERTALTERNATE) {
 556                         return -2;
 557                 }
 558         }
 559
 560         if ((mbox_fp = g_fopen(mbox, "wb")) == NULL) {
 561                 FILE_OP_ERROR(mbox, "fopen");
 562                 alertpanel_error(_("Could not create mbox file:\n%s\n"), mbox);
 563                 return -1;
 564         }
 565
 566 #ifdef HAVE_FGETS_UNLOCKED
 567         flockfile(mbox_fp);
 568 #endif
 569
 570         statuswindow_print_all(_("Exporting to mbox..."));
 571         for (cur = mlist; cur != NULL; cur = cur->next) {
 572                 int len;
 573                 gchar buft[BUFFSIZE];
 574                 msginfo = (MsgInfo *)cur->data;
 575
 576                 msg_fp = procmsg_open_message(msginfo);
 577                 if (!msg_fp) {
 578                         continue;
 579                 }
 580
 581 #ifdef HAVE_FGETS_UNLOCKED
 582                 flockfile(msg_fp);
 583 #endif
 584                 strncpy2(buf,
 585                          msginfo->from ? msginfo->from :
 586                          cur_account && cur_account->address ?
 587                          cur_account->address : "unknown",
 588                          sizeof(buf));
 589                 extract_address(buf);
 590
 591                 if (fprintf(mbox_fp, "From %s %s",
 592                         buf, ctime_r(&msginfo->date_t, buft)) < 0) {
 593                         err = -1;
 594 #ifdef HAVE_FGETS_UNLOCKED
 595                         funlockfile(msg_fp);
 596 #endif
 597                         fclose(msg_fp);
 598                         goto out;
 599                 }
 600
 601                 buf[0] = '\0';
 602
 603                 /* write email to mboxrc */
 604                 while (SC_FGETS(buf, sizeof(buf), msg_fp) != NULL) {
 605                         /* quote any From, >From, >>From, etc., according to mbox format specs */
 606                         int offset;
 607
 608                         offset = 0;
 609                         /* detect leading '>' char(s) */
 610                         while ((buf[offset] == '>')) {
 611                                 offset++;
 612                         }
 613                         if (!strncmp(buf+offset, "From ", 5)) {
 614                                 if (SC_FPUTC('>', mbox_fp) == EOF) {
 615                                         err = -1;
 616 #ifdef HAVE_FGETS_UNLOCKED
 617                                         funlockfile(msg_fp);
 618 #endif
 619                                         fclose(msg_fp);
 620                                         goto out;
 621                                 }
 622                         }
 623                         if (SC_FPUTS(buf, mbox_fp) == EOF) {
 624                                 err = -1;
 625 #ifdef HAVE_FGETS_UNLOCKED
 626                                 funlockfile(msg_fp);
 627 #endif
 628                                 fclose(msg_fp);
 629                                 goto out;
 630                         }
 631                 }
 632
 633                 /* force last line to end w/ a newline */
 634                 len = strlen(buf);
 635                 if (len > 0) {
 636                         len--;
 637                         if ((buf[len] != '\n') && (buf[len] != '\r')) {
 638                                 if (SC_FPUTC('\n', mbox_fp) == EOF) {
 639                                         err = -1;
 640 #ifdef HAVE_FGETS_UNLOCKED
 641                                         funlockfile(msg_fp);
 642 #endif
 643                                         fclose(msg_fp);
 644                                         goto out;
 645                                 }
 646                         }
 647                 }
 648
 649                 /* add a trailing empty line */
 650                 if (SC_FPUTC('\n', mbox_fp) == EOF) {
 651                         err = -1;
 652 #ifdef HAVE_FGETS_UNLOCKED
 653                         funlockfile(msg_fp);
 654 #endif
 655                         fclose(msg_fp);
 656                         goto out;
 657                 }
 658
 659 #ifdef HAVE_FGETS_UNLOCKED
 660                 funlockfile(msg_fp);
 661 #endif
 662                 fclose(msg_fp);
 663                 statusbar_progress_all(msgs++,total, 500);
 664                 if (msgs%500 == 0)
 665                         GTK_EVENTS_FLUSH();
 666         }
 667
 668 out:
 669         statusbar_progress_all(0,0,0);
 670         statuswindow_pop_all();
 671
 672 #ifdef HAVE_FGETS_UNLOCKED
 673         funlockfile(mbox_fp);
 674 #endif
 675         fclose(mbox_fp);
 676
 677         return err;
 678 }
 679
 680 /* read all messages in SRC, and store them into one MBOX file. */
 681 /* return values: -2 skipped, -1 error, 0 OK */
 682 gint export_to_mbox(FolderItem *src, const gchar *mbox)
 683 {
 684         GSList *mlist;
 685         gint ret;
 686
 687         cm_return_val_if_fail(src != NULL, -1);
 688         cm_return_val_if_fail(src->folder != NULL, -1);
 689         cm_return_val_if_fail(mbox != NULL, -1);
 690
 691         debug_print("Exporting messages from %s into %s...\n",
 692                     src->path, mbox);
 693
 694         mlist = folder_item_get_msg_list(src);
 695
 696         folder_item_update_freeze();
 697         ret = export_list_to_mbox(mlist, mbox);
 698         folder_item_update_thaw();
 699
 700         procmsg_msg_list_free(mlist);
 701
 702         return ret;
 703 }