Mercurial > dovecot > core-2.2
changeset 885:1b3c679d2c6d HEAD
Make sure UIDs won't wrap around unexpectedly.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Thu, 02 Jan 2003 13:29:24 +0200 |
| parents | c5897896c4f1 |
| children | 3a4f468a53c6 |
| files | src/lib-index/mail-index-open.c src/lib-index/mail-index.c src/lib-index/mail-index.h |
| diffstat | 3 files changed, 11 insertions(+), 1 deletions(-) [+] |
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--- a/src/lib-index/mail-index-open.c Thu Jan 02 13:06:36 2003 +0200 +++ b/src/lib-index/mail-index-open.c Thu Jan 02 13:29:24 2003 +0200 @@ -139,7 +139,7 @@ index->first_recent_uid = hdr->last_nonrecent_uid+1; } - if (hdr->next_uid >= INT_MAX-1024) { + if (hdr->next_uid >= MAX_ALLOWED_UID - 1000) { /* UID values are getting too high, rebuild index */ index->set_flags |= MAIL_INDEX_FLAG_REBUILD; }
--- a/src/lib-index/mail-index.c Thu Jan 02 13:06:36 2003 +0200 +++ b/src/lib-index/mail-index.c Thu Jan 02 13:29:24 2003 +0200 @@ -980,6 +980,13 @@ { i_assert(rec->uid == 0); + if (index->header->next_uid == MAX_ALLOWED_UID) { + index->set_flags |= MAIL_INDEX_FLAG_REBUILD; + index_set_error(index, "Reached maximum UID in mailbox %s, " + "rebuilding index", index->filepath); + return FALSE; + } + index->header->messages_count++; rec->uid = index->header->next_uid++;
--- a/src/lib-index/mail-index.h Thu Jan 02 13:06:36 2003 +0200 +++ b/src/lib-index/mail-index.h Thu Jan 02 13:29:24 2003 +0200 @@ -478,6 +478,9 @@ int mail_index_compress_data(MailIndex *index); int mail_index_truncate(MailIndex *index); +/* Maximum allowed UID number. */ +#define MAX_ALLOWED_UID 4294967295U /* 2^32 - 1 */ + /* Max. mmap()ed size for a message */ #define MAIL_MMAP_BLOCK_SIZE (1024*256) /* Block size when read()ing message. */