make maildir uidvalidity change fatal
it's best to give the user a chance to fix it rather than completely messing up the syncstate by re-enumerating the UIDs.
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@ -399,6 +399,15 @@ maildir_uidval_lock( maildir_store_t *ctx )
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lseek( ctx->uvfd, 0, SEEK_SET );
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if ((n = read( ctx->uvfd, buf, sizeof(buf) )) <= 0 ||
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(buf[n] = 0, sscanf( buf, "%d\n%d", &ctx->gen.uidvalidity, &ctx->nuid ) != 2)) {
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#if 1
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/* In a generic driver, resetting the UID validity would be the right thing.
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* But this would mess up the sync state completely. So better bail out and
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* give the user a chance to fix the mailbox. */
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if (n) {
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error( "Maildir error: cannot read UIDVALIDITY.\n" );
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return DRV_BOX_BAD;
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}
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#endif
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return maildir_init_uid_new( ctx );
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} else
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ctx->uvok = 1;
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@ -624,6 +633,12 @@ maildir_scan( maildir_store_t *ctx, msglist_t *msglist )
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entry = &msglist->ents[i];
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if (entry->uid != INT_MAX) {
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if (uid == entry->uid) {
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#if 1
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/* See comment in maildir_uidval_lock() why this is fatal. */
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error( "Maildir error: duplicate UID %d.\n", uid );
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maildir_free_scan( msglist );
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return DRV_BOX_BAD;
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#else
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info( "Maildir notice: duplicate UID; changing UIDVALIDITY.\n");
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if ((ret = maildir_init_uid( ctx )) != DRV_OK) {
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maildir_free_scan( msglist );
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@ -631,6 +646,7 @@ maildir_scan( maildir_store_t *ctx, msglist_t *msglist )
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}
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maildir_free_scan( msglist );
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goto again;
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#endif
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}
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uid = entry->uid;
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if ((ctx->gen.opts & OPEN_SIZE) || ((ctx->gen.opts & OPEN_FIND) && uid >= ctx->newuid))
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