index/maildir/maildir-copy.c

	maildir-copy.c revision ea4c984d8097f24aa18ed5bb364ebaf3b01bc2a3
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen/* Copyright (c) 2002-2010 Dovecot authors, see the included COPYING file */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "lib.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "array.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "ioloop.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "str.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "nfs-workarounds.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "maildir-storage.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "maildir-uidlist.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "maildir-filename.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "maildir-keywords.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "maildir-sync.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "index-mail.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include "mail-copy.h"
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include <stdlib.h>
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include <unistd.h>
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen#include <sys/stat.h>
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenstruct hardlink_ctx {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    string_t *dest_path;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    const char *dest_fname;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    unsigned int base_end_pos;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    unsigned int size_set:1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    unsigned int vsize_set:1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    unsigned int success:1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    unsigned int preserve_filename:1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen};
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenstatic int do_save_mail_size(struct maildir_mailbox *mbox, const char *path,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                 struct hardlink_ctx *ctx)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen{
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    const char *fname, *str;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    struct stat st;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    uoff_t size;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    fname = strrchr(path, '/');
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    fname = fname != NULL ? fname + 1 : path;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (!maildir_filename_get_size(fname, MAILDIR_EXTRA_FILE_SIZE,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                       &size)) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (stat(path, &st) < 0) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            if (errno == ENOENT)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                return 0;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            mail_storage_set_critical(&mbox->storage->storage,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                          "stat(%s) failed: %m", path);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return -1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        size = st.st_size;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    str = t_strdup_printf(",%c=%"PRIuUOFF_T, MAILDIR_EXTRA_FILE_SIZE, size);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    str_insert(ctx->dest_path, ctx->base_end_pos, str);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    ctx->dest_fname = strrchr(str_c(ctx->dest_path), '/') + 1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    ctx->size_set = TRUE;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    return 1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen}
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenstatic void do_save_mail_vsize(const char *path, struct hardlink_ctx *ctx)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen{
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    const char *fname, *str;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    uoff_t size;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    fname = strrchr(path, '/');
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    fname = fname != NULL ? fname + 1 : path;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (!maildir_filename_get_size(fname, MAILDIR_EXTRA_VIRTUAL_SIZE,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                       &size))
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        return;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    str = t_strdup_printf(",%c=%"PRIuUOFF_T,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                  MAILDIR_EXTRA_VIRTUAL_SIZE, size);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    str_insert(ctx->dest_path, ctx->base_end_pos, str);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    ctx->dest_fname = strrchr(str_c(ctx->dest_path), '/') + 1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    ctx->vsize_set = TRUE;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen}
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenstatic int do_hardlink(struct maildir_mailbox *mbox, const char *path,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen               struct hardlink_ctx *ctx)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen{
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    int ret;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (!ctx->preserve_filename) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (!ctx->size_set) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            if ((ret = do_save_mail_size(mbox, path, ctx)) <= 0)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                return ret;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* set virtual size if it's in the original file name */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (!ctx->vsize_set)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            do_save_mail_vsize(path, ctx);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (mbox->storage->storage.set->mail_nfs_storage)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        ret = nfs_safe_link(path, str_c(ctx->dest_path), FALSE);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    else
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        ret = link(path, str_c(ctx->dest_path));
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (ret < 0) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (errno == ENOENT)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return 0;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (ENOSPACE(errno)) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            mail_storage_set_error(&mbox->storage->storage,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                MAIL_ERROR_NOSPACE, MAIL_ERRSTR_NO_SPACE);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return -1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* we could handle the EEXIST condition by changing the
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen           filename, but it practically never happens so just fallback
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen           to standard copying for the rare cases when it does. */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (errno == EACCES || ECANTLINK(errno) || errno == EEXIST)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return 1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        mail_storage_set_critical(&mbox->storage->storage,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                      "link(%s, %s) failed: %m",
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                      path, str_c(ctx->dest_path));
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        return -1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    ctx->success = TRUE;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    return 1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen}
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenstatic const char *
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenmaildir_copy_get_preserved_fname(struct maildir_mailbox *src_mbox,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                 uint32_t uid)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen{
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    enum maildir_uidlist_rec_flag flags;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    const char *fname;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (maildir_uidlist_lookup(src_mbox->uidlist, uid, &flags,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                   &fname) <= 0)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        return NULL;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    /* fname may be freed by a later uidlist sync. make sure it gets
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen       strduped. */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    return t_strcut(t_strdup(fname), ':');
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen}
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenstatic int
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenmaildir_copy_hardlink(struct mail_save_context *ctx, struct mail *mail)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen{
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    struct maildir_mailbox *dest_mbox =
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        (struct maildir_mailbox *)ctx->transaction->box;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    struct maildir_mailbox *src_mbox;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    struct hardlink_ctx do_ctx;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    const char *path, *filename = NULL;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (strcmp(mail->box->storage->name, MAILDIR_STORAGE_NAME) == 0)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        src_mbox = (struct maildir_mailbox *)mail->box;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    else if (strcmp(mail->box->storage->name, "raw") == 0) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* lda uses raw format */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        src_mbox = NULL;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    } else {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* Can't hard link files from the source storage */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        return 0;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    memset(&do_ctx, 0, sizeof(do_ctx));
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    do_ctx.dest_path = str_new(default_pool, 512);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (dest_mbox->storage->set->maildir_copy_preserve_filename &&
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        src_mbox != NULL) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        filename = maildir_copy_get_preserved_fname(src_mbox,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                                mail->uid);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (filename == NULL) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* the generated filename is _always_ unique, so we don't
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen           bother trying to check if it already exists */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        do_ctx.dest_fname = maildir_filename_generate();
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    } else {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        do_ctx.dest_fname = filename;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        do_ctx.preserve_filename = TRUE;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    /* hard link to tmp/ with basename and later when we
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen       have uidlist locked, move it to new/cur. */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    str_printfa(do_ctx.dest_path, "%s/tmp/%s",
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            dest_mbox->box.path, do_ctx.dest_fname);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    do_ctx.base_end_pos = str_len(do_ctx.dest_path);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (src_mbox != NULL) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* maildir */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (maildir_file_do(src_mbox, mail->uid,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                    do_hardlink, &do_ctx) < 0)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return -1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    } else {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* raw / lda */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (mail_get_special(mail, MAIL_FETCH_UIDL_FILE_NAME,
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen                     &path) < 0 || *path == '\0')
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return 0;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (do_hardlink(dest_mbox, path, &do_ctx) < 0)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return -1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (!do_ctx.success) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        /* couldn't copy with hardlinking, fallback to copying */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        return 0;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    /* hardlinked to tmp/, treat as normal copied mail */
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    maildir_save_add(ctx, do_ctx.dest_fname, do_ctx.preserve_filename);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    return 1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen}
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenstatic bool
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenmaildir_compatible_file_modes(struct mailbox *box1, struct mailbox *box2)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen{
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    return box1->file_create_mode == box2->file_create_mode &&
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        box1->file_create_gid == box2->file_create_gid;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen}
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainenint maildir_copy(struct mail_save_context *ctx, struct mail *mail)
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen{
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    struct mailbox_transaction_context *_t = ctx->transaction;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    struct maildir_mailbox *mbox = (struct maildir_mailbox *)_t->box;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    int ret;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    i_assert((_t->flags & MAILBOX_TRANSACTION_FLAG_EXTERNAL) != 0);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen    if (mbox->storage->set->maildir_copy_with_hardlinks &&
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        maildir_compatible_file_modes(&mbox->box, mail->box)) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        T_BEGIN {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            ret = maildir_copy_hardlink(ctx, mail);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        } T_END;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        if (ret != 0) {
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            index_save_context_free(ctx);
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen            return ret > 0 ? 0 : -1;
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen        }
51f750db859e62e2c58a61806b53e0adb13e0775Timo Sirainen
        /* non-fatal hardlinking failure, try the slow way */
    }

    return mail_storage_copy(ctx, mail);
}