Mercurial > dovecot > original-hg > dovecot-1.2
view src/lib-index/mail-index-util.c @ 160:ff05b320482c HEAD
Bigger changes.. full_virtual_size was removed from index record and
MessagePart caching is now forced. Also added per-message flags, including
binary flags which can be used to check if CRs need to be inserted into
message data.
Added mbox-rewrite support which can be used to write out mbox file with
updated flags. This still has the problem of being able to read changed
custom flags, that'll require another bigger change.
There's also several other mostly mbox related fixes.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Fri, 06 Sep 2002 16:43:58 +0300 |
parents | 3b1985cbc908 |
children | db6e288be0e9 |
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/* Copyright (C) 2002 Timo Sirainen */ #include "lib.h" #include "iobuffer.h" #include "hostpid.h" #include "message-size.h" #include "message-part-serialize.h" #include "mail-index.h" #include "mail-index-util.h" #include <unistd.h> #include <fcntl.h> void index_set_error(MailIndex *index, const char *fmt, ...) { va_list va; i_free(index->error); if (fmt == NULL) index->error = NULL; else { va_start(va, fmt); index->error = i_strdup_vprintf(fmt, va); va_end(va); i_error("%s", index->error); } } void index_reset_error(MailIndex *index) { if (index->error != NULL) { i_free(index->error); index->error = NULL; } } int mail_index_create_temp_file(MailIndex *index, const char **path) { int fd; hostpid_init(); /* use ".temp.host.pid" as temporary file name. unlink() it first, just to be sure it's not symlinked somewhere for some reason.. */ *path = t_strconcat(index->dir, "/.temp.", my_hostname, ".", my_pid, NULL); (void)unlink(*path); /* usage of O_EXCL isn't exactly needed since the path should be trusted, but it shouldn't hurt either - if creating file fails because of it, it's because something must be wrong (race condition). also, might not won't work through NFS but that can't be helped. */ fd = open(*path, O_RDWR | O_CREAT | O_EXCL, 0660); if (fd == -1) index_set_error(index, "Can't create temp index %s: %m", *path); return fd; } int mail_index_get_virtual_size(MailIndex *index, MailIndexRecord *rec, int fastscan, uoff_t *virtual_size) { MessageSize hdr_size, body_size; IOBuffer *inbuf; const void *part_data; unsigned int size; if ((rec->index_flags & INDEX_MAIL_FLAG_BINARY_HEADER) && (rec->index_flags & INDEX_MAIL_FLAG_BINARY_BODY)) { /* virtual size == physical size */ *virtual_size += rec->header_size + rec->body_size; return TRUE; } part_data = index->lookup_field_raw(index, rec, FIELD_TYPE_MESSAGEPART, &size); if (part_data != NULL) { /* get sizes from preparsed message structure */ if (!message_part_deserialize_size(part_data, size, &hdr_size, &body_size)) { /* corrupted, ignore */ index_set_error(index, "Error in index file %s: " "Corrupted cached MessagePart data", index->filepath); } else { *virtual_size = hdr_size.virtual_size + body_size.virtual_size; return TRUE; } } /* only way left is to actually parse the message */ *virtual_size = 0; if (fastscan) { /* and we don't want that */ return FALSE; } inbuf = index->open_mail(index, rec); if (inbuf == NULL) return FALSE; /* we don't care about the difference in header/body, so parse the whole message as a "body" */ message_get_body_size(inbuf, &body_size, (uoff_t)-1); *virtual_size = body_size.virtual_size; (void)close(inbuf->fd); io_buffer_destroy(inbuf); return TRUE; }