1287 lines
39 KiB
C
1287 lines
39 KiB
C
/* ========================================================================
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* Copyright 1988-2008 University of Washington
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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*
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* ========================================================================
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*/
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/*
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* Program: MX mail routines
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*
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* Author(s): Mark Crispin
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* Networks and Distributed Computing
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* Computing & Communications
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* University of Washington
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* Administration Building, AG-44
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* Seattle, WA 98195
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* Internet: MRC@CAC.Washington.EDU
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*
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* Date: 3 May 1996
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* Last Edited: 6 January 2008
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*/
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#include <stdio.h>
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#include <ctype.h>
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#include <errno.h>
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extern int errno; /* just in case */
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#include "mail.h"
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#include "osdep.h"
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#include <pwd.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include "misc.h"
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#include "dummy.h"
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#include "fdstring.h"
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/* Index file */
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#define MXINDEXNAME "/.mxindex"
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#define MXINDEX(d,s) strcat (mx_file (d,s),MXINDEXNAME)
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/* MX I/O stream local data */
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typedef struct mx_local {
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int fd; /* file descriptor of open index */
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unsigned char *buf; /* temporary buffer */
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unsigned long buflen; /* current size of temporary buffer */
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unsigned long cachedtexts; /* total size of all cached texts */
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time_t scantime; /* last time directory scanned */
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} MXLOCAL;
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/* Convenient access to local data */
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#define LOCAL ((MXLOCAL *) stream->local)
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/* Function prototypes */
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DRIVER *mx_valid (char *name);
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int mx_isvalid (char *name,char *tmp);
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int mx_namevalid (char *name);
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void *mx_parameters (long function,void *value);
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long mx_dirfmttest (char *name);
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void mx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents);
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long mx_scan_contents (char *name,char *contents,unsigned long csiz,
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unsigned long fsiz);
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void mx_list (MAILSTREAM *stream,char *ref,char *pat);
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void mx_lsub (MAILSTREAM *stream,char *ref,char *pat);
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long mx_subscribe (MAILSTREAM *stream,char *mailbox);
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long mx_unsubscribe (MAILSTREAM *stream,char *mailbox);
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long mx_create (MAILSTREAM *stream,char *mailbox);
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long mx_delete (MAILSTREAM *stream,char *mailbox);
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long mx_rename (MAILSTREAM *stream,char *old,char *newname);
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int mx_rename_work (char *src,size_t srcl,char *dst,size_t dstl,char *name);
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MAILSTREAM *mx_open (MAILSTREAM *stream);
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void mx_close (MAILSTREAM *stream,long options);
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void mx_fast (MAILSTREAM *stream,char *sequence,long flags);
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char *mx_fast_work (MAILSTREAM *stream,MESSAGECACHE *elt);
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char *mx_header (MAILSTREAM *stream,unsigned long msgno,unsigned long *length,
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long flags);
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long mx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags);
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void mx_flag (MAILSTREAM *stream,char *sequence,char *flag,long flags);
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void mx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt);
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long mx_ping (MAILSTREAM *stream);
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void mx_check (MAILSTREAM *stream);
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long mx_expunge (MAILSTREAM *stream,char *sequence,long options);
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long mx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,
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long options);
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long mx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
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long mx_append_msg (MAILSTREAM *stream,char *flags,MESSAGECACHE *elt,
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STRING *st,SEARCHSET *set);
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int mx_select (const struct dirent *name);
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int mx_numsort (const struct dirent **d1, const struct dirent **d2);
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char *mx_file (char *dst,char *name);
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long mx_lockindex (MAILSTREAM *stream);
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void mx_unlockindex (MAILSTREAM *stream);
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void mx_setdate (char *file,MESSAGECACHE *elt);
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/* MX mail routines */
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/* Driver dispatch used by MAIL */
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DRIVER mxdriver = {
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"mx", /* driver name */
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/* driver flags */
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DR_MAIL|DR_LOCAL|DR_NOFAST|DR_CRLF|DR_LOCKING|DR_DIRFMT,
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(DRIVER *) NIL, /* next driver */
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mx_valid, /* mailbox is valid for us */
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mx_parameters, /* manipulate parameters */
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mx_scan, /* scan mailboxes */
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mx_list, /* find mailboxes */
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mx_lsub, /* find subscribed mailboxes */
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mx_subscribe, /* subscribe to mailbox */
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mx_unsubscribe, /* unsubscribe from mailbox */
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mx_create, /* create mailbox */
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mx_delete, /* delete mailbox */
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mx_rename, /* rename mailbox */
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mail_status_default, /* status of mailbox */
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mx_open, /* open mailbox */
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mx_close, /* close mailbox */
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mx_fast, /* fetch message "fast" attributes */
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NIL, /* fetch message flags */
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NIL, /* fetch overview */
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NIL, /* fetch message envelopes */
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mx_header, /* fetch message header only */
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mx_text, /* fetch message body only */
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NIL, /* fetch partial message test */
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NIL, /* unique identifier */
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NIL, /* message number */
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mx_flag, /* modify flags */
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mx_flagmsg, /* per-message modify flags */
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NIL, /* search for message based on criteria */
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NIL, /* sort messages */
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NIL, /* thread messages */
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mx_ping, /* ping mailbox to see if still alive */
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mx_check, /* check for new messages */
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mx_expunge, /* expunge deleted messages */
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mx_copy, /* copy messages to another mailbox */
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mx_append, /* append string message to mailbox */
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NIL /* garbage collect stream */
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};
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/* prototype stream */
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MAILSTREAM mxproto = {&mxdriver};
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/* MX mail validate mailbox
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* Accepts: mailbox name
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* Returns: our driver if name is valid, NIL otherwise
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*/
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DRIVER *mx_valid (char *name)
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{
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char tmp[MAILTMPLEN];
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return mx_isvalid (name,tmp) ? &mxdriver : NIL;
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}
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/* MX mail test for valid mailbox
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* Accepts: mailbox name
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* temporary buffer to use
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* Returns: T if valid, NIL otherwise with errno holding dir stat error
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*/
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int mx_isvalid (char *name,char *tmp)
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{
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struct stat sbuf;
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errno = NIL; /* zap error */
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if ((strlen (name) <= NETMAXMBX) && *mx_file (tmp,name) &&
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!stat (tmp,&sbuf) && ((sbuf.st_mode & S_IFMT) == S_IFDIR)) {
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/* name is directory; is it mx? */
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if (!stat (MXINDEX (tmp,name),&sbuf) &&
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((sbuf.st_mode & S_IFMT) == S_IFREG)) return T;
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errno = NIL; /* directory but not mx */
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}
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else if (!compare_cstring (name,"INBOX")) errno = NIL;
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return NIL;
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}
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/* MX mail test for valid mailbox
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* Accepts: mailbox name
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* Returns: T if valid, NIL otherwise
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*/
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int mx_namevalid (char *name)
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{
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char *s = (*name == '/') ? name + 1 : name;
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while (s && *s) { /* make sure valid name */
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if (isdigit (*s)) s++; /* digit, check this node further... */
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else if (*s == '/') break; /* all digit node, barf */
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/* non-digit, skip to next node or return */
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else if (!((s = strchr (s+1,'/')) && *++s)) return T;
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}
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return NIL; /* all numeric or empty node */
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}
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/* MX manipulate driver parameters
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* Accepts: function code
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* function-dependent value
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* Returns: function-dependent return value
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*/
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void *mx_parameters (long function,void *value)
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{
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void *ret = NIL;
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switch ((int) function) {
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case GET_INBOXPATH:
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if (value) ret = mailboxfile ((char *) value,"~/INBOX");
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break;
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case GET_DIRFMTTEST:
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ret = (void *) mx_dirfmttest;
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break;
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case GET_SCANCONTENTS:
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ret = (void *) mx_scan_contents;
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break;
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}
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return ret;
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}
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/* MX test for directory format internal node
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* Accepts: candidate node name
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* Returns: T if internal name, NIL otherwise
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*/
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long mx_dirfmttest (char *name)
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{
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int c;
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/* success if index name or all-numberic */
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if (strcmp (name,MXINDEXNAME+1))
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while (c = *name++) if (!isdigit (c)) return NIL;
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return LONGT;
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}
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/* MX scan mailboxes
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* Accepts: mail stream
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* reference
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* pattern to search
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* string to scan
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*/
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void mx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
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{
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if (stream) dummy_scan (NIL,ref,pat,contents);
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}
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/* MX scan mailbox for contents
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* Accepts: mailbox name
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* desired contents
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* contents size
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* file size (ignored)
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* Returns: NIL if contents not found, T if found
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*/
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long mx_scan_contents (char *name,char *contents,unsigned long csiz,
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unsigned long fsiz)
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{
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long i,nfiles;
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void *a;
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char *s;
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long ret = NIL;
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size_t namelen = strlen (name);
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struct stat sbuf;
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struct direct **names = NIL;
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if ((nfiles = scandir (name,&names,mx_select,mx_numsort)) > 0)
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for (i = 0; i < nfiles; ++i) {
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if (!ret) {
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sprintf (s = (char *) fs_get (namelen + strlen (names[i]->d_name) + 2),
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"%s/%s",name,names[i]->d_name);
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if (!stat (s,&sbuf) && (csiz <= sbuf.st_size))
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ret = dummy_scan_contents (s,contents,csiz,sbuf.st_size);
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fs_give ((void **) &s);
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}
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fs_give ((void **) &names[i]);
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}
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/* free directory list */
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if (a = (void *) names) fs_give ((void **) &a);
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return ret;
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}
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/* MX list mailboxes
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* Accepts: mail stream
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* reference
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* pattern to search
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*/
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void mx_list (MAILSTREAM *stream,char *ref,char *pat)
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{
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if (stream) dummy_list (NIL,ref,pat);
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}
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/* MX list subscribed mailboxes
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* Accepts: mail stream
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* reference
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* pattern to search
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*/
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void mx_lsub (MAILSTREAM *stream,char *ref,char *pat)
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{
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if (stream) dummy_lsub (NIL,ref,pat);
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}
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/* MX mail subscribe to mailbox
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* Accepts: mail stream
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* mailbox to add to subscription list
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* Returns: T on success, NIL on failure
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*/
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long mx_subscribe (MAILSTREAM *stream,char *mailbox)
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{
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return sm_subscribe (mailbox);
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}
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/* MX mail unsubscribe to mailbox
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* Accepts: mail stream
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* mailbox to delete from subscription list
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* Returns: T on success, NIL on failure
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*/
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long mx_unsubscribe (MAILSTREAM *stream,char *mailbox)
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{
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return sm_unsubscribe (mailbox);
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}
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/* MX mail create mailbox
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* Accepts: mail stream
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* mailbox name to create
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* Returns: T on success, NIL on failure
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*/
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long mx_create (MAILSTREAM *stream,char *mailbox)
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{
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DRIVER *test;
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int fd;
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char *s,tmp[MAILTMPLEN];
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int mask = umask (0);
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long ret = NIL;
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if (!mx_namevalid (mailbox)) /* validate name */
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sprintf (tmp,"Can't create mailbox %.80s: invalid MX-format name",mailbox);
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/* must not already exist */
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else if ((test = mail_valid (NIL,mailbox,NIL)) &&
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strcmp (test->name,"dummy"))
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sprintf (tmp,"Can't create mailbox %.80s: mailbox already exists",mailbox);
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/* create directory */
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else if (!dummy_create_path (stream,MXINDEX (tmp,mailbox),
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get_dir_protection (mailbox)))
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sprintf (tmp,"Can't create mailbox %.80s: %s",mailbox,strerror (errno));
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else { /* success */
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/* set index protection */
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set_mbx_protections (mailbox,tmp);
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/* tie off directory name */
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*(s = strrchr (tmp,'/') + 1) = '\0';
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/* set directory protection */
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set_mbx_protections (mailbox,tmp);
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ret = LONGT;
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}
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umask (mask); /* restore mask */
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if (!ret) MM_LOG (tmp,ERROR); /* some error */
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return ret;
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}
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/* MX mail delete mailbox
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* mailbox name to delete
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* Returns: T on success, NIL on failure
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*/
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long mx_delete (MAILSTREAM *stream,char *mailbox)
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{
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DIR *dirp;
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struct direct *d;
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char *s;
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char tmp[MAILTMPLEN];
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if (!mx_isvalid (mailbox,tmp))
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sprintf (tmp,"Can't delete mailbox %.80s: no such mailbox",mailbox);
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/* delete index */
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else if (unlink (MXINDEX (tmp,mailbox)))
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sprintf (tmp,"Can't delete mailbox %.80s index: %s",
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mailbox,strerror (errno));
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else { /* get directory name */
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*(s = strrchr (tmp,'/')) = '\0';
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if (dirp = opendir (tmp)) { /* open directory */
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*s++ = '/'; /* restore delimiter */
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/* massacre messages */
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while (d = readdir (dirp)) if (mx_select (d)) {
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strcpy (s,d->d_name); /* make path */
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unlink (tmp); /* sayonara */
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}
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closedir (dirp); /* flush directory */
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*(s = strrchr (tmp,'/')) = '\0';
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if (rmdir (tmp)) { /* try to remove the directory */
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sprintf (tmp,"Can't delete name %.80s: %s",mailbox,strerror (errno));
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MM_LOG (tmp,WARN);
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}
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}
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return T; /* always success */
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}
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MM_LOG (tmp,ERROR); /* something failed */
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return NIL;
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}
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/* MX mail rename mailbox
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* Accepts: MX mail stream
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* old mailbox name
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* new mailbox name
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* Returns: T on success, NIL on failure
|
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*/
|
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long mx_rename (MAILSTREAM *stream,char *old,char *newname)
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{
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char c,*s,tmp[MAILTMPLEN],tmp1[MAILTMPLEN];
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struct stat sbuf;
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if (!mx_isvalid (old,tmp))
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sprintf (tmp,"Can't rename mailbox %.80s: no such mailbox",old);
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else if (!mx_namevalid (newname))
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sprintf (tmp,"Can't rename to mailbox %.80s: invalid MX-format name",
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newname);
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/* new mailbox name must not be valid */
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else if (mx_isvalid (newname,tmp))
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sprintf (tmp,"Can't rename to mailbox %.80s: destination already exists",
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newname);
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else {
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mx_file (tmp,old); /* build old directory name */
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mx_file (tmp1,newname); /* and new directory name */
|
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/* easy if not INBOX */
|
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if (compare_cstring (old,"INBOX")) {
|
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/* found superior to destination name? */
|
||
if (s = strrchr (mx_file (tmp1,newname),'/')) {
|
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c = *++s; /* remember first character of inferior */
|
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*s = '\0'; /* tie off to get just superior */
|
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/* name doesn't exist, create it */
|
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if ((stat (tmp1,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
|
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!dummy_create_path (stream,tmp1,get_dir_protection (newname)))
|
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return NIL;
|
||
*s = c; /* restore full name */
|
||
}
|
||
if (!rename (tmp,tmp1)) return LONGT;
|
||
}
|
||
|
||
/* RFC 3501 requires this */
|
||
else if (dummy_create_path (stream,strcat (tmp1,"/"),
|
||
get_dir_protection (newname))) {
|
||
void *a;
|
||
int i,n,lasterror;
|
||
struct direct **names = NIL;
|
||
size_t srcl = strlen (tmp);
|
||
size_t dstl = strlen (tmp1);
|
||
/* rename each mx file to new directory */
|
||
for (i = lasterror = 0,n = scandir (tmp,&names,mx_select,mx_numsort);
|
||
i < n; ++i) {
|
||
if (mx_rename_work (tmp,srcl,tmp1,dstl,names[i]->d_name))
|
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lasterror = errno;
|
||
fs_give ((void **) &names[i]);
|
||
}
|
||
/* free directory list */
|
||
if (a = (void *) names) fs_give ((void **) &a);
|
||
if (lasterror || mx_rename_work (tmp,srcl,tmp1,dstl,MXINDEXNAME+1))
|
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errno = lasterror;
|
||
else return mx_create (NIL,"INBOX");
|
||
}
|
||
sprintf (tmp,"Can't rename mailbox %.80s to %.80s: %s",
|
||
old,newname,strerror (errno));
|
||
}
|
||
MM_LOG (tmp,ERROR); /* something failed */
|
||
return NIL;
|
||
}
|
||
|
||
|
||
/* MX rename worker routine
|
||
* Accepts: source directory name
|
||
* source directory name length
|
||
* destination directory name
|
||
* destination directory name length
|
||
* name of node to move
|
||
* Returns: zero if success, non-zero if error
|
||
*/
|
||
|
||
int mx_rename_work (char *src,size_t srcl,char *dst,size_t dstl,char *name)
|
||
{
|
||
int ret;
|
||
size_t len = strlen (name);
|
||
char *s = (char *) fs_get (srcl + len + 2);
|
||
char *d = (char *) fs_get (dstl + len + 1);
|
||
sprintf (s,"%s/%s",src,name);
|
||
sprintf (d,"%s%s",dst,name);
|
||
ret = rename (s,d);
|
||
fs_give ((void **) &s);
|
||
fs_give ((void **) &d);
|
||
return ret;
|
||
}
|
||
|
||
/* MX mail open
|
||
* Accepts: stream to open
|
||
* Returns: stream on success, NIL on failure
|
||
*/
|
||
|
||
MAILSTREAM *mx_open (MAILSTREAM *stream)
|
||
{
|
||
char tmp[MAILTMPLEN];
|
||
/* return prototype for OP_PROTOTYPE call */
|
||
if (!stream) return user_flags (&mxproto);
|
||
if (stream->local) fatal ("mx recycle stream");
|
||
stream->local = fs_get (sizeof (MXLOCAL));
|
||
/* note if an INBOX or not */
|
||
stream->inbox = !compare_cstring (stream->mailbox,"INBOX");
|
||
mx_file (tmp,stream->mailbox);/* get directory name */
|
||
/* canonicalize mailbox name */
|
||
fs_give ((void **) &stream->mailbox);
|
||
stream->mailbox = cpystr (tmp);
|
||
/* make temporary buffer */
|
||
LOCAL->buf = (char *) fs_get (CHUNKSIZE);
|
||
LOCAL->buflen = CHUNKSIZE - 1;
|
||
LOCAL->scantime = 0; /* not scanned yet */
|
||
LOCAL->fd = -1; /* no index yet */
|
||
LOCAL->cachedtexts = 0; /* no cached texts */
|
||
stream->sequence++; /* bump sequence number */
|
||
/* parse mailbox */
|
||
stream->nmsgs = stream->recent = 0;
|
||
if (mx_ping (stream) && !(stream->nmsgs || stream->silent))
|
||
MM_LOG ("Mailbox is empty",(long) NIL);
|
||
stream->perm_seen = stream->perm_deleted = stream->perm_flagged =
|
||
stream->perm_answered = stream->perm_draft = stream->rdonly ? NIL : T;
|
||
stream->perm_user_flags = stream->rdonly ? NIL : 0xffffffff;
|
||
stream->kwd_create = (stream->user_flags[NUSERFLAGS-1] || stream->rdonly) ?
|
||
NIL : T; /* can we create new user flags? */
|
||
return stream; /* return stream to caller */
|
||
}
|
||
|
||
/* MX mail close
|
||
* Accepts: MAIL stream
|
||
* close options
|
||
*/
|
||
|
||
void mx_close (MAILSTREAM *stream,long options)
|
||
{
|
||
if (LOCAL) { /* only if a file is open */
|
||
int silent = stream->silent;
|
||
stream->silent = T; /* note this stream is dying */
|
||
if (options & CL_EXPUNGE) mx_expunge (stream,NIL,NIL);
|
||
/* free local scratch buffer */
|
||
if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
|
||
/* nuke the local data */
|
||
fs_give ((void **) &stream->local);
|
||
stream->dtb = NIL; /* log out the DTB */
|
||
stream->silent = silent; /* reset silent state */
|
||
}
|
||
}
|
||
|
||
/* MX mail fetch fast information
|
||
* Accepts: MAIL stream
|
||
* sequence
|
||
* option flags
|
||
*/
|
||
|
||
void mx_fast (MAILSTREAM *stream,char *sequence,long flags)
|
||
{
|
||
unsigned long i;
|
||
MESSAGECACHE *elt;
|
||
if (stream && LOCAL &&
|
||
((flags & FT_UID) ? mail_uid_sequence (stream,sequence) :
|
||
mail_sequence (stream,sequence)))
|
||
for (i = 1; i <= stream->nmsgs; i++)
|
||
if ((elt = mail_elt (stream,i))->sequence) mx_fast_work (stream,elt);
|
||
}
|
||
|
||
|
||
/* MX mail fetch fast information
|
||
* Accepts: MAIL stream
|
||
* message cache element
|
||
* Returns: name of message file
|
||
*/
|
||
|
||
char *mx_fast_work (MAILSTREAM *stream,MESSAGECACHE *elt)
|
||
{
|
||
struct stat sbuf;
|
||
struct tm *tm;
|
||
/* build message file name */
|
||
sprintf (LOCAL->buf,"%s/%lu",stream->mailbox,elt->private.uid);
|
||
/* have size yet? */
|
||
if (!elt->rfc822_size && !stat (LOCAL->buf,&sbuf)) {
|
||
/* make plausible IMAPish date string */
|
||
tm = gmtime (&sbuf.st_mtime);
|
||
elt->day = tm->tm_mday; elt->month = tm->tm_mon + 1;
|
||
elt->year = tm->tm_year + 1900 - BASEYEAR;
|
||
elt->hours = tm->tm_hour; elt->minutes = tm->tm_min;
|
||
elt->seconds = tm->tm_sec;
|
||
elt->zhours = 0; elt->zminutes = 0; elt->zoccident = 0;
|
||
elt->rfc822_size = sbuf.st_size;
|
||
}
|
||
return (char *) LOCAL->buf; /* return file name */
|
||
}
|
||
|
||
/* MX mail fetch message header
|
||
* Accepts: MAIL stream
|
||
* message # to fetch
|
||
* pointer to returned header text length
|
||
* option flags
|
||
* Returns: message header in RFC822 format
|
||
*/
|
||
|
||
char *mx_header (MAILSTREAM *stream,unsigned long msgno,unsigned long *length,
|
||
long flags)
|
||
{
|
||
unsigned long i;
|
||
int fd;
|
||
MESSAGECACHE *elt;
|
||
*length = 0; /* default to empty */
|
||
if (flags & FT_UID) return "";/* UID call "impossible" */
|
||
elt = mail_elt (stream,msgno);/* get elt */
|
||
if (!elt->private.msg.header.text.data) {
|
||
/* purge cache if too big */
|
||
if (LOCAL->cachedtexts > max (stream->nmsgs * 4096,2097152)) {
|
||
mail_gc (stream,GC_TEXTS);/* just can't keep that much */
|
||
LOCAL->cachedtexts = 0;
|
||
}
|
||
if ((fd = open (mx_fast_work (stream,elt),O_RDONLY,NIL)) < 0) return "";
|
||
/* is buffer big enough? */
|
||
if (elt->rfc822_size > LOCAL->buflen) {
|
||
fs_give ((void **) &LOCAL->buf);
|
||
LOCAL->buf = (char *) fs_get ((LOCAL->buflen = elt->rfc822_size) + 1);
|
||
}
|
||
/* slurp message */
|
||
read (fd,LOCAL->buf,elt->rfc822_size);
|
||
/* tie off file */
|
||
LOCAL->buf[elt->rfc822_size] = '\0';
|
||
close (fd); /* flush message file */
|
||
/* find end of header */
|
||
if (elt->rfc822_size < 4) i = 0;
|
||
else for (i = 4; (i < elt->rfc822_size) &&
|
||
!((LOCAL->buf[i - 4] == '\015') &&
|
||
(LOCAL->buf[i - 3] == '\012') &&
|
||
(LOCAL->buf[i - 2] == '\015') &&
|
||
(LOCAL->buf[i - 1] == '\012')); i++);
|
||
/* copy header */
|
||
cpytxt (&elt->private.msg.header.text,LOCAL->buf,i);
|
||
cpytxt (&elt->private.msg.text.text,LOCAL->buf+i,elt->rfc822_size - i);
|
||
/* add to cached size */
|
||
LOCAL->cachedtexts += elt->rfc822_size;
|
||
}
|
||
*length = elt->private.msg.header.text.size;
|
||
return (char *) elt->private.msg.header.text.data;
|
||
}
|
||
|
||
/* MX mail fetch message text (body only)
|
||
* Accepts: MAIL stream
|
||
* message # to fetch
|
||
* pointer to returned stringstruct
|
||
* option flags
|
||
* Returns: T on success, NIL on failure
|
||
*/
|
||
|
||
long mx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags)
|
||
{
|
||
unsigned long i;
|
||
MESSAGECACHE *elt;
|
||
/* UID call "impossible" */
|
||
if (flags & FT_UID) return NIL;
|
||
elt = mail_elt (stream,msgno);
|
||
/* snarf message if don't have it yet */
|
||
if (!elt->private.msg.text.text.data) {
|
||
mx_header (stream,msgno,&i,flags);
|
||
if (!elt->private.msg.text.text.data) return NIL;
|
||
}
|
||
/* mark as seen */
|
||
if (!(flags & FT_PEEK) && mx_lockindex (stream)) {
|
||
elt->seen = T;
|
||
mx_unlockindex (stream);
|
||
MM_FLAGS (stream,msgno);
|
||
}
|
||
INIT (bs,mail_string,elt->private.msg.text.text.data,
|
||
elt->private.msg.text.text.size);
|
||
return T;
|
||
}
|
||
|
||
/* MX mail modify flags
|
||
* Accepts: MAIL stream
|
||
* sequence
|
||
* flag(s)
|
||
* option flags
|
||
*/
|
||
|
||
void mx_flag (MAILSTREAM *stream,char *sequence,char *flag,long flags)
|
||
{
|
||
mx_unlockindex (stream); /* finished with index */
|
||
}
|
||
|
||
|
||
/* MX per-message modify flags
|
||
* Accepts: MAIL stream
|
||
* message cache element
|
||
*/
|
||
|
||
void mx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt)
|
||
{
|
||
mx_lockindex (stream); /* lock index if not already locked */
|
||
}
|
||
|
||
/* MX mail ping mailbox
|
||
* Accepts: MAIL stream
|
||
* Returns: T if stream alive, else NIL
|
||
*/
|
||
|
||
long mx_ping (MAILSTREAM *stream)
|
||
{
|
||
MAILSTREAM *sysibx = NIL;
|
||
MESSAGECACHE *elt,*selt;
|
||
struct stat sbuf;
|
||
char *s,tmp[MAILTMPLEN];
|
||
int fd;
|
||
unsigned long i,j,r,old;
|
||
long nmsgs = stream->nmsgs;
|
||
long recent = stream->recent;
|
||
int silent = stream->silent;
|
||
if (stat (stream->mailbox,&sbuf)) return NIL;
|
||
stream->silent = T; /* don't pass up exists events yet */
|
||
if (sbuf.st_ctime != LOCAL->scantime) {
|
||
struct direct **names = NIL;
|
||
long nfiles = scandir (stream->mailbox,&names,mx_select,mx_numsort);
|
||
if (nfiles < 0) nfiles = 0; /* in case error */
|
||
old = stream->uid_last;
|
||
/* note scanned now */
|
||
LOCAL->scantime = sbuf.st_ctime;
|
||
/* scan directory */
|
||
for (i = 0; i < nfiles; ++i) {
|
||
/* if newly seen, add to list */
|
||
if ((j = atoi (names[i]->d_name)) > old) {
|
||
/* swell the cache */
|
||
mail_exists (stream,++nmsgs);
|
||
stream->uid_last = (elt = mail_elt (stream,nmsgs))->private.uid = j;
|
||
elt->valid = T; /* note valid flags */
|
||
if (old) { /* other than the first pass? */
|
||
elt->recent = T; /* yup, mark as recent */
|
||
recent++; /* bump recent count */
|
||
}
|
||
}
|
||
fs_give ((void **) &names[i]);
|
||
}
|
||
/* free directory */
|
||
if (s = (void *) names) fs_give ((void **) &s);
|
||
}
|
||
stream->nmsgs = nmsgs; /* don't upset mail_uid() */
|
||
|
||
/* if INBOX, snarf from system INBOX */
|
||
if (mx_lockindex (stream) && stream->inbox &&
|
||
!strcmp (sysinbox (),stream->mailbox)) {
|
||
old = stream->uid_last;
|
||
MM_CRITICAL (stream); /* go critical */
|
||
/* see if anything in system inbox */
|
||
if (!stat (sysinbox (),&sbuf) && sbuf.st_size &&
|
||
(sysibx = mail_open (sysibx,sysinbox (),OP_SILENT)) &&
|
||
!sysibx->rdonly && (r = sysibx->nmsgs)) {
|
||
for (i = 1; i <= r; ++i) {/* for each message in sysinbox mailbox */
|
||
/* build file name we will use */
|
||
sprintf (LOCAL->buf,"%s/%lu",stream->mailbox,++old);
|
||
/* snarf message from Berkeley mailbox */
|
||
selt = mail_elt (sysibx,i);
|
||
if (((fd = open (LOCAL->buf,O_WRONLY|O_CREAT|O_EXCL,
|
||
(long) mail_parameters (NIL,GET_MBXPROTECTION,NIL)))
|
||
>= 0) &&
|
||
(s = mail_fetchheader_full (sysibx,i,NIL,&j,FT_PEEK)) &&
|
||
(write (fd,s,j) == j) &&
|
||
(s = mail_fetchtext_full (sysibx,i,&j,FT_PEEK)) &&
|
||
(write (fd,s,j) == j) && !fsync (fd) && !close (fd)) {
|
||
/* swell the cache */
|
||
mail_exists (stream,++nmsgs);
|
||
stream->uid_last = /* create new elt, note its file number */
|
||
(elt = mail_elt (stream,nmsgs))->private.uid = old;
|
||
recent++; /* bump recent count */
|
||
/* set up initial flags and date */
|
||
elt->valid = elt->recent = T;
|
||
elt->seen = selt->seen;
|
||
elt->deleted = selt->deleted;
|
||
elt->flagged = selt->flagged;
|
||
elt->answered = selt->answered;
|
||
elt->draft = selt->draft;
|
||
elt->day = selt->day;elt->month = selt->month;elt->year = selt->year;
|
||
elt->hours = selt->hours;elt->minutes = selt->minutes;
|
||
elt->seconds = selt->seconds;
|
||
elt->zhours = selt->zhours; elt->zminutes = selt->zminutes;
|
||
elt->zoccident = selt->zoccident;
|
||
mx_setdate (LOCAL->buf,elt);
|
||
sprintf (tmp,"%lu",i);/* delete it from the sysinbox */
|
||
mail_flag (sysibx,tmp,"\\Deleted",ST_SET);
|
||
}
|
||
else { /* failed to snarf */
|
||
if (fd) { /* did it ever get opened? */
|
||
close (fd); /* close descriptor */
|
||
unlink (LOCAL->buf);/* flush this file */
|
||
}
|
||
sprintf (tmp,"Message copy to MX mailbox failed: %.80s",
|
||
s,strerror (errno));
|
||
MM_LOG (tmp,ERROR);
|
||
r = 0; /* stop the snarf in its tracks */
|
||
}
|
||
}
|
||
/* update scan time */
|
||
if (!stat (stream->mailbox,&sbuf)) LOCAL->scantime = sbuf.st_ctime;
|
||
mail_expunge (sysibx); /* now expunge all those messages */
|
||
}
|
||
if (sysibx) mail_close (sysibx);
|
||
MM_NOCRITICAL (stream); /* release critical */
|
||
}
|
||
mx_unlockindex (stream); /* done with index */
|
||
stream->silent = silent; /* can pass up events now */
|
||
mail_exists (stream,nmsgs); /* notify upper level of mailbox size */
|
||
mail_recent (stream,recent);
|
||
return T; /* return that we are alive */
|
||
}
|
||
|
||
/* MX mail check mailbox
|
||
* Accepts: MAIL stream
|
||
*/
|
||
|
||
void mx_check (MAILSTREAM *stream)
|
||
{
|
||
if (mx_ping (stream)) MM_LOG ("Check completed",(long) NIL);
|
||
}
|
||
|
||
|
||
/* MX mail expunge mailbox
|
||
* Accepts: MAIL stream
|
||
* sequence to expunge if non-NIL
|
||
* expunge options
|
||
* Returns: T, always
|
||
*/
|
||
|
||
long mx_expunge (MAILSTREAM *stream,char *sequence,long options)
|
||
{
|
||
long ret;
|
||
MESSAGECACHE *elt;
|
||
unsigned long i = 1;
|
||
unsigned long n = 0;
|
||
unsigned long recent = stream->recent;
|
||
if (ret = (sequence ? ((options & EX_UID) ?
|
||
mail_uid_sequence (stream,sequence) :
|
||
mail_sequence (stream,sequence)) : LONGT) &&
|
||
mx_lockindex (stream)) { /* lock the index */
|
||
MM_CRITICAL (stream); /* go critical */
|
||
while (i <= stream->nmsgs) {/* for each message */
|
||
elt = mail_elt (stream,i);/* if deleted, need to trash it */
|
||
if (elt->deleted && (sequence ? elt->sequence : T)) {
|
||
sprintf (LOCAL->buf,"%s/%lu",stream->mailbox,elt->private.uid);
|
||
if (unlink (LOCAL->buf)) {/* try to delete the message */
|
||
sprintf (LOCAL->buf,"Expunge of message %lu failed, aborted: %s",i,
|
||
strerror (errno));
|
||
MM_LOG (LOCAL->buf,(long) NIL);
|
||
break;
|
||
}
|
||
/* note uncached */
|
||
LOCAL->cachedtexts -= ((elt->private.msg.header.text.data ?
|
||
elt->private.msg.header.text.size : 0) +
|
||
(elt->private.msg.text.text.data ?
|
||
elt->private.msg.text.text.size : 0));
|
||
mail_gc_msg (&elt->private.msg,GC_ENV | GC_TEXTS);
|
||
if(elt->recent)--recent;/* if recent, note one less recent message */
|
||
mail_expunged(stream,i);/* notify upper levels */
|
||
n++; /* count up one more expunged message */
|
||
}
|
||
else i++; /* otherwise try next message */
|
||
}
|
||
if (n) { /* output the news if any expunged */
|
||
sprintf (LOCAL->buf,"Expunged %lu messages",n);
|
||
MM_LOG (LOCAL->buf,(long) NIL);
|
||
}
|
||
else MM_LOG ("No messages deleted, so no update needed",(long) NIL);
|
||
MM_NOCRITICAL (stream); /* release critical */
|
||
mx_unlockindex (stream); /* finished with index */
|
||
/* notify upper level of new mailbox size */
|
||
mail_exists (stream,stream->nmsgs);
|
||
mail_recent (stream,recent);
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
/* MX mail copy message(s)
|
||
* Accepts: MAIL stream
|
||
* sequence
|
||
* destination mailbox
|
||
* copy options
|
||
* Returns: T if copy successful, else NIL
|
||
*/
|
||
|
||
long mx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
|
||
{
|
||
FDDATA d;
|
||
STRING st;
|
||
MESSAGECACHE *elt;
|
||
MAILSTREAM *astream;
|
||
struct stat sbuf;
|
||
int fd;
|
||
unsigned long i,j,uid,uidv;
|
||
char *t,tmp[MAILTMPLEN];
|
||
long ret;
|
||
mailproxycopy_t pc =
|
||
(mailproxycopy_t) mail_parameters (stream,GET_MAILPROXYCOPY,NIL);
|
||
/* make sure valid mailbox */
|
||
if (!mx_valid (mailbox)) switch (errno) {
|
||
case NIL: /* no error in stat() */
|
||
if (pc) return (*pc) (stream,sequence,mailbox,options);
|
||
sprintf (LOCAL->buf,"Not a MX-format mailbox: %.80s",mailbox);
|
||
MM_LOG (LOCAL->buf,ERROR);
|
||
return NIL;
|
||
default: /* some stat() error */
|
||
MM_NOTIFY (stream,"[TRYCREATE] Must create mailbox before copy",NIL);
|
||
return NIL;
|
||
}
|
||
/* copy the messages */
|
||
if (!(ret = ((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
|
||
mail_sequence (stream,sequence))));
|
||
/* acquire stream to append to */
|
||
else if (!(astream = mail_open (NIL,mailbox,OP_SILENT))) {
|
||
MM_LOG ("Can't open copy mailbox",ERROR);
|
||
ret = NIL;
|
||
}
|
||
else {
|
||
MM_CRITICAL (stream); /* go critical */
|
||
if (!(ret = mx_lockindex (astream)))
|
||
MM_LOG ("Message copy failed: unable to lock index",ERROR);
|
||
else {
|
||
|
||
copyuid_t cu = (copyuid_t) mail_parameters (NIL,GET_COPYUID,NIL);
|
||
SEARCHSET *source = cu ? mail_newsearchset () : NIL;
|
||
SEARCHSET *dest = cu ? mail_newsearchset () : NIL;
|
||
for (i = 1,uid = uidv = 0; ret && (i <= stream->nmsgs); i++)
|
||
if ((elt = mail_elt (stream,i))->sequence) {
|
||
if (ret = ((fd = open (mx_fast_work (stream,elt),O_RDONLY,NIL))
|
||
>= 0)) {
|
||
fstat (fd,&sbuf); /* get size of message */
|
||
d.fd = fd; /* set up file descriptor */
|
||
d.pos = 0; /* start of file */
|
||
d.chunk = LOCAL->buf;
|
||
d.chunksize = CHUNKSIZE;
|
||
INIT (&st,fd_string,&d,sbuf.st_size);
|
||
/* init flag string */
|
||
tmp[0] = tmp[1] = '\0';
|
||
if (j = elt->user_flags) do
|
||
if (t = stream->user_flags[find_rightmost_bit (&j)])
|
||
strcat (strcat (tmp," "),t);
|
||
while (j);
|
||
if (elt->seen) strcat (tmp," \\Seen");
|
||
if (elt->deleted) strcat (tmp," \\Deleted");
|
||
if (elt->flagged) strcat (tmp," \\Flagged");
|
||
if (elt->answered) strcat (tmp," \\Answered");
|
||
if (elt->draft) strcat (tmp," \\Draft");
|
||
tmp[0] = '('; /* open list */
|
||
strcat (tmp,")"); /* close list */
|
||
if (ret = mx_append_msg (astream,tmp,elt,&st,dest)) {
|
||
/* add to source set if needed */
|
||
if (source) mail_append_set (source,mail_uid (stream,i));
|
||
/* delete if doing a move */
|
||
if (options & CP_MOVE) elt->deleted = T;
|
||
}
|
||
}
|
||
}
|
||
/* return sets if doing COPYUID */
|
||
if (cu && ret) (*cu) (stream,mailbox,astream->uid_validity,source,dest);
|
||
else { /* flush any sets we may have built */
|
||
mail_free_searchset (&source);
|
||
mail_free_searchset (&dest);
|
||
}
|
||
mx_unlockindex (astream); /* unlock index */
|
||
}
|
||
MM_NOCRITICAL (stream);
|
||
mail_close (astream); /* finished with append stream */
|
||
}
|
||
return ret; /* return success */
|
||
}
|
||
|
||
/* MX mail append message from stringstruct
|
||
* Accepts: MAIL stream
|
||
* destination mailbox
|
||
* append callback
|
||
* data for callback
|
||
* Returns: T if append successful, else NIL
|
||
*/
|
||
|
||
long mx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
|
||
{
|
||
MESSAGECACHE elt;
|
||
MAILSTREAM *astream;
|
||
char *flags,*date,tmp[MAILTMPLEN];
|
||
STRING *message;
|
||
long ret = LONGT;
|
||
/* default stream to prototype */
|
||
if (!stream) stream = user_flags (&mxproto);
|
||
/* N.B.: can't use LOCAL->buf for tmp */
|
||
/* make sure valid mailbox */
|
||
if (!mx_isvalid (mailbox,tmp)) switch (errno) {
|
||
case ENOENT: /* no such file? */
|
||
if (!compare_cstring (mailbox,"INBOX")) mx_create (NIL,"INBOX");
|
||
else {
|
||
MM_NOTIFY (stream,"[TRYCREATE] Must create mailbox before append",NIL);
|
||
return NIL;
|
||
}
|
||
/* falls through */
|
||
case 0: /* merely empty file? */
|
||
break;
|
||
case EINVAL:
|
||
sprintf (tmp,"Invalid MX-format mailbox name: %.80s",mailbox);
|
||
MM_LOG (tmp,ERROR);
|
||
return NIL;
|
||
default:
|
||
sprintf (tmp,"Not a MX-format mailbox: %.80s",mailbox);
|
||
MM_LOG (tmp,ERROR);
|
||
return NIL;
|
||
}
|
||
|
||
/* get first message */
|
||
if (!MM_APPEND (af) (stream,data,&flags,&date,&message)) return NIL;
|
||
if (!(astream = mail_open (NIL,mailbox,OP_SILENT))) {
|
||
MM_LOG ("Can't open append mailbox",ERROR);
|
||
return NIL;
|
||
}
|
||
MM_CRITICAL (astream); /* go critical */
|
||
/* lock the index */
|
||
if (!(ret = mx_lockindex (astream)))
|
||
MM_LOG ("Message append failed: unable to lock index",ERROR);
|
||
else {
|
||
appenduid_t au = (appenduid_t) mail_parameters (NIL,GET_APPENDUID,NIL);
|
||
SEARCHSET *dst = au ? mail_newsearchset () : NIL;
|
||
do {
|
||
/* guard against zero-length */
|
||
if (!(ret = SIZE (message)))
|
||
MM_LOG ("Append of zero-length message",ERROR);
|
||
else if (date && !(ret = mail_parse_date (&elt,date))) {
|
||
sprintf (tmp,"Bad date in append: %.80s",date);
|
||
MM_LOG (tmp,ERROR);
|
||
}
|
||
else ret = mx_append_msg (astream,flags,date ? &elt : NIL,message,dst)&&
|
||
MM_APPEND (af) (stream,data,&flags,&date,&message);
|
||
} while (ret && message);
|
||
/* return sets if doing APPENDUID */
|
||
if (au && ret) (*au) (mailbox,astream->uid_validity,dst);
|
||
else mail_free_searchset (&dst);
|
||
mx_unlockindex (astream); /* unlock index */
|
||
}
|
||
MM_NOCRITICAL (astream); /* release critical */
|
||
mail_close (astream);
|
||
return ret;
|
||
}
|
||
|
||
/* MX mail append single message
|
||
* Accepts: MAIL stream
|
||
* flags for new message if non-NIL
|
||
* elt with source date if non-NIL
|
||
* stringstruct of message text
|
||
* searchset to place UID
|
||
* Returns: T if success, NIL if failure
|
||
*/
|
||
|
||
long mx_append_msg (MAILSTREAM *stream,char *flags,MESSAGECACHE *elt,
|
||
STRING *st,SEARCHSET *set)
|
||
{
|
||
char tmp[MAILTMPLEN];
|
||
int fd;
|
||
unsigned long uf;
|
||
long f = mail_parse_flags (stream,flags,&uf);
|
||
/* make message file name */
|
||
sprintf (tmp,"%s/%lu",stream->mailbox,++stream->uid_last);
|
||
if ((fd = open (tmp,O_WRONLY|O_CREAT|O_EXCL,
|
||
(long) mail_parameters (NIL,GET_MBXPROTECTION,NIL))) < 0) {
|
||
sprintf (tmp,"Can't create append message: %s",strerror (errno));
|
||
MM_LOG (tmp,ERROR);
|
||
return NIL;
|
||
}
|
||
while (SIZE (st)) { /* copy the file */
|
||
if (st->cursize && (write (fd,st->curpos,st->cursize) < 0)) {
|
||
unlink (tmp); /* delete file */
|
||
close (fd); /* close the file */
|
||
sprintf (tmp,"Message append failed: %s",strerror (errno));
|
||
MM_LOG (tmp,ERROR);
|
||
return NIL;
|
||
}
|
||
SETPOS (st,GETPOS (st) + st->cursize);
|
||
}
|
||
close (fd); /* close the file */
|
||
if (elt) mx_setdate (tmp,elt);/* set file date */
|
||
/* swell the cache */
|
||
mail_exists (stream,++stream->nmsgs);
|
||
/* copy flags */
|
||
mail_append_set (set,(elt = mail_elt (stream,stream->nmsgs))->private.uid =
|
||
stream->uid_last);
|
||
if (f&fSEEN) elt->seen = T;
|
||
if (f&fDELETED) elt->deleted = T;
|
||
if (f&fFLAGGED) elt->flagged = T;
|
||
if (f&fANSWERED) elt->answered = T;
|
||
if (f&fDRAFT) elt->draft = T;
|
||
elt->user_flags |= uf;
|
||
return LONGT;
|
||
}
|
||
|
||
/* Internal routines */
|
||
|
||
|
||
/* MX file name selection test
|
||
* Accepts: candidate directory entry
|
||
* Returns: T to use file name, NIL to skip it
|
||
*/
|
||
|
||
int mx_select (const struct dirent *name)
|
||
{
|
||
char c;
|
||
char *s = name->d_name;
|
||
while (c = *s++) if (!isdigit (c)) return NIL;
|
||
return T;
|
||
}
|
||
|
||
|
||
/* MX file name comparision
|
||
* Accepts: first candidate directory entry
|
||
* second candidate directory entry
|
||
* Returns: negative if d1 < d2, 0 if d1 == d2, postive if d1 > d2
|
||
*/
|
||
|
||
int mx_numsort (const struct dirent **d1, const struct dirent **d2)
|
||
{
|
||
return atoi ((*d1)->d_name) - atoi ((*d2)->d_name);
|
||
}
|
||
|
||
|
||
/* MX mail build file name
|
||
* Accepts: destination string
|
||
* source
|
||
* Returns: destination
|
||
*/
|
||
|
||
char *mx_file (char *dst,char *name)
|
||
{
|
||
char *s;
|
||
/* empty string if mailboxfile fails */
|
||
if (!mailboxfile (dst,name)) *dst = '\0';
|
||
/* driver-selected INBOX */
|
||
else if (!*dst) mailboxfile (dst,"~/INBOX");
|
||
/* tie off unnecessary trailing / */
|
||
else if ((s = strrchr (dst,'/')) && !s[1]) *s = '\0';
|
||
return dst;
|
||
}
|
||
|
||
/* MX read and lock index
|
||
* Accepts: MAIL stream
|
||
* Returns: T if success, NIL if failure
|
||
*/
|
||
|
||
long mx_lockindex (MAILSTREAM *stream)
|
||
{
|
||
unsigned long uf,sf,uid;
|
||
int k = 0;
|
||
unsigned long msgno = 1;
|
||
struct stat sbuf;
|
||
char *s,*t,*idx,tmp[2*MAILTMPLEN];
|
||
MESSAGECACHE *elt;
|
||
blocknotify_t bn = (blocknotify_t) mail_parameters (NIL,GET_BLOCKNOTIFY,NIL);
|
||
if ((LOCAL->fd < 0) && /* get index file, no-op if already have it */
|
||
(LOCAL->fd = open (strcat (strcpy (tmp,stream->mailbox),MXINDEXNAME),
|
||
O_RDWR|O_CREAT,
|
||
(long) mail_parameters (NIL,GET_MBXPROTECTION,NIL)))
|
||
>= 0) {
|
||
(*bn) (BLOCK_FILELOCK,NIL);
|
||
flock (LOCAL->fd,LOCK_EX); /* get exclusive lock */
|
||
(*bn) (BLOCK_NONE,NIL);
|
||
fstat (LOCAL->fd,&sbuf); /* get size of index */
|
||
/* slurp index */
|
||
read (LOCAL->fd,s = idx = (char *) fs_get (sbuf.st_size + 1),sbuf.st_size);
|
||
idx[sbuf.st_size] = '\0'; /* tie off index */
|
||
/* parse index */
|
||
if (sbuf.st_size) while (s && *s) switch (*s) {
|
||
case 'V': /* UID validity record */
|
||
stream->uid_validity = strtoul (s+1,&s,16);
|
||
break;
|
||
case 'L': /* UID last record */
|
||
stream->uid_last = strtoul (s+1,&s,16);
|
||
break;
|
||
case 'K': /* keyword */
|
||
/* find end of keyword */
|
||
if (s = strchr (t = ++s,'\n')) {
|
||
*s++ = '\0'; /* tie off keyword */
|
||
/* copy keyword */
|
||
if ((k < NUSERFLAGS) && !stream->user_flags[k] &&
|
||
(strlen (t) <= MAXUSERFLAG)) stream->user_flags[k] = cpystr (t);
|
||
k++; /* one more keyword */
|
||
}
|
||
break;
|
||
|
||
case 'M': /* message status record */
|
||
uid = strtoul (s+1,&s,16);/* get UID for this message */
|
||
if (*s == ';') { /* get user flags */
|
||
uf = strtoul (s+1,&s,16);
|
||
if (*s == '.') { /* get system flags */
|
||
sf = strtoul (s+1,&s,16);
|
||
while ((msgno <= stream->nmsgs) && (mail_uid (stream,msgno) < uid))
|
||
msgno++; /* find message number for this UID */
|
||
if ((msgno <= stream->nmsgs) && (mail_uid (stream,msgno) == uid)) {
|
||
(elt = mail_elt (stream,msgno))->valid = T;
|
||
elt->user_flags=uf; /* set user and system flags in elt */
|
||
if (sf & fSEEN) elt->seen = T;
|
||
if (sf & fDELETED) elt->deleted = T;
|
||
if (sf & fFLAGGED) elt->flagged = T;
|
||
if (sf & fANSWERED) elt->answered = T;
|
||
if (sf & fDRAFT) elt->draft = T;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
default: /* bad news */
|
||
sprintf (tmp,"Error in index: %.80s",s);
|
||
MM_LOG (tmp,ERROR);
|
||
*s = NIL; /* ignore remainder of index */
|
||
}
|
||
else { /* new index */
|
||
stream->uid_validity = time (0);
|
||
user_flags (stream); /* init stream with default user flags */
|
||
}
|
||
fs_give ((void **) &idx); /* flush index */
|
||
}
|
||
return (LOCAL->fd >= 0) ? T : NIL;
|
||
}
|
||
|
||
/* MX write and unlock index
|
||
* Accepts: MAIL stream
|
||
*/
|
||
|
||
#define MXIXBUFLEN 2048
|
||
|
||
void mx_unlockindex (MAILSTREAM *stream)
|
||
{
|
||
unsigned long i,j;
|
||
off_t size = 0;
|
||
char *s,tmp[MXIXBUFLEN + 64];
|
||
MESSAGECACHE *elt;
|
||
if (LOCAL->fd >= 0) {
|
||
lseek (LOCAL->fd,0,L_SET); /* rewind file */
|
||
/* write header */
|
||
sprintf (s = tmp,"V%08lxL%08lx",stream->uid_validity,stream->uid_last);
|
||
for (i = 0; (i < NUSERFLAGS) && stream->user_flags[i]; ++i)
|
||
sprintf (s += strlen (s),"K%s\n",stream->user_flags[i]);
|
||
/* write messages */
|
||
for (i = 1; i <= stream->nmsgs; i++) {
|
||
/* filled buffer? */
|
||
if (((s += strlen (s)) - tmp) > MXIXBUFLEN) {
|
||
write (LOCAL->fd,tmp,j = s - tmp);
|
||
size += j;
|
||
*(s = tmp) = '\0'; /* dump out and restart buffer */
|
||
}
|
||
elt = mail_elt (stream,i);
|
||
sprintf(s,"M%08lx;%08lx.%04x",elt->private.uid,elt->user_flags,(unsigned)
|
||
((fSEEN * elt->seen) + (fDELETED * elt->deleted) +
|
||
(fFLAGGED * elt->flagged) + (fANSWERED * elt->answered) +
|
||
(fDRAFT * elt->draft)));
|
||
}
|
||
/* write tail end of buffer */
|
||
if ((s += strlen (s)) != tmp) {
|
||
write (LOCAL->fd,tmp,j = s - tmp);
|
||
size += j;
|
||
}
|
||
ftruncate (LOCAL->fd,size);
|
||
flock (LOCAL->fd,LOCK_UN); /* unlock the index */
|
||
close (LOCAL->fd); /* finished with file */
|
||
LOCAL->fd = -1; /* no index now */
|
||
}
|
||
}
|
||
|
||
/* Set date for message
|
||
* Accepts: file name
|
||
* elt containing date
|
||
*/
|
||
|
||
void mx_setdate (char *file,MESSAGECACHE *elt)
|
||
{
|
||
time_t tp[2];
|
||
tp[0] = time (0); /* atime is now */
|
||
tp[1] = mail_longdate (elt); /* modification time */
|
||
set_utime_from_tp(file,tp); /* set the times */
|
||
}
|