f309875081
1) Statification of modules. 2) Implement the 'detach' and 'Detach' commands for extracting mime parts from messages. 3) Teach mail to output "In-Reply-To" and "References" header fields when replying so others can thread us. 4) Implement threading, sorting, and tagging, supported by the following commands: 'flatten', 'reverse', 'sort', 'thread', 'unthread', 'down', 'tset', 'up', 'expose', 'hide', 'tag', 'untag', 'invtags', 'tagbelow', 'hidetags', 'showtags'. See the manpage for details (when available - soon). 5) Implement a 'deldups' command to delete duplicate messages based on their "Message-Id" field, e.g., in replies to a mailing list that are also CCed to a subscriber. (This can also be accomplished with the threading and tagging commands.) 6) Implement 'ifdef' and 'ifndef' commands, and make the conditionals nestable (i.e., implement a conditional stack). The if/else/endif commands existed before, but they were primitive and undocumented. The 'if' command currently recognizes the "receiving", "sending", and "headersonly" mode keywords. 7) Teach the message selecting routine to understand regular expressions if "regex-search" is defined. Otherwise only case insensitive substring matches are done (as in the past). 8) Teach the message selection routine to understand boolean expressions. Improved "colon-modifier" support. See the manpage for details (when available - soon). 9) Extend paging to all commands (where relevant). 10) Add shell like piping and redirection of (standard) output (if "enable-piping" is defined). Extend completion to these contexts. 11) The manpage should follow soon!!!!
571 lines
13 KiB
C
571 lines
13 KiB
C
/* $NetBSD: quit.c,v 1.26 2006/11/28 18:45:32 christos Exp $ */
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/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)quit.c 8.2 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: quit.c,v 1.26 2006/11/28 18:45:32 christos Exp $");
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#endif
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#endif /* not lint */
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#include "rcv.h"
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#include "extern.h"
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#include "thread.h"
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/*
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* Rcv -- receive mail rationally.
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*
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* Termination processing.
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*/
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/*
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* The "quit" command.
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*/
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/*ARGSUSED*/
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PUBLIC int
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quitcmd(void *v __unused)
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{
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/*
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* If we are sourcing, then return 1 so execute() can handle it.
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* Otherwise, return -1 to abort command loop.
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*/
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if (sourcing)
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return 1;
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return -1;
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}
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/*
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* Preserve all the appropriate messages back in the system
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* mailbox, and print a nice message indicated how many were
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* saved. On any error, just return -1. Else return 0.
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* Incorporate the any new mail that we found.
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*/
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static int
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writeback(FILE *res)
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{
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struct message *mp;
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int p, c;
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FILE *obuf;
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p = 0;
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if ((obuf = Fopen(mailname, "r+")) == NULL) {
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warn("%s", mailname);
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return -1;
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}
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#ifndef APPEND
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if (res != NULL) {
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while ((c = getc(res)) != EOF)
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(void)putc(c, obuf);
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(void)fflush(obuf);
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if (ferror(obuf)) {
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warn("%s", mailname);
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(void)Fclose(obuf);
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return -1;
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}
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}
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#endif
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for (mp = get_message(1); mp; mp = next_message(mp))
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if ((mp->m_flag & MPRESERVE) || (mp->m_flag & MTOUCH)==0) {
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p++;
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if (sendmessage(mp, obuf, NULL, NULL, NULL) < 0) {
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warn("%s", mailname);
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(void)Fclose(obuf);
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return -1;
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}
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}
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#ifdef APPEND
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if (res != NULL)
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while ((c = getc(res)) != EOF)
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(void)putc(c, obuf);
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#endif
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(void)fflush(obuf);
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if (!ferror(obuf))
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trunc(obuf); /* XXX or should we truncate? */
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if (ferror(obuf)) {
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warn("%s", mailname);
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(void)Fclose(obuf);
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return -1;
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}
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if (res != NULL)
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(void)Fclose(res);
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(void)Fclose(obuf);
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alter(mailname);
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if (p == 1)
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(void)printf("Held 1 message in %s\n", mailname);
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else
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(void)printf("Held %d messages in %s\n", p, mailname);
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return 0;
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}
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/*
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* Terminate an editing session by attempting to write out the user's
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* file from the temporary. Save any new stuff appended to the file.
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*/
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static void
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edstop(void)
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{
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int gotcha, c;
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struct message *mp;
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FILE *obuf, *ibuf, *readstat = NULL;
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struct stat statb;
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char tempname[PATHSIZE];
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int fd;
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if (readonly)
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return;
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holdsigs();
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if (Tflag != NULL) {
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if ((readstat = Fopen(Tflag, "w")) == NULL)
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Tflag = NULL;
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}
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for (mp = get_message(1), gotcha = 0; mp; mp = next_message(mp)) {
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if (mp->m_flag & MNEW) {
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mp->m_flag &= ~MNEW;
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mp->m_flag |= MSTATUS;
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}
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if (mp->m_flag & (MMODIFY|MDELETED|MSTATUS))
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gotcha++;
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if (Tflag != NULL && (mp->m_flag & (MREAD|MDELETED)) != 0) {
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char *id;
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if ((id = hfield("article-id", mp)) != NULL)
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(void)fprintf(readstat, "%s\n", id);
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}
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}
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if (Tflag != NULL)
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(void)Fclose(readstat);
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if (!gotcha || Tflag != NULL)
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goto done;
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ibuf = NULL;
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if (stat(mailname, &statb) >= 0 && statb.st_size > mailsize) {
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(void)snprintf(tempname, sizeof(tempname),
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"%s/mbox.XXXXXXXXXX", tmpdir);
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if ((fd = mkstemp(tempname)) == -1 ||
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(obuf = Fdopen(fd, "w")) == NULL) {
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warn("%s", tempname);
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if (fd != -1)
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(void)close(fd);
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relsesigs();
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reset(0);
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}
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if ((ibuf = Fopen(mailname, "r")) == NULL) {
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warn("%s", mailname);
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(void)Fclose(obuf);
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(void)rm(tempname);
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relsesigs();
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reset(0);
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}
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(void)fseek(ibuf, (long)mailsize, 0);
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while ((c = getc(ibuf)) != EOF)
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(void)putc(c, obuf);
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(void)fflush(obuf);
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if (ferror(obuf)) {
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warn("%s", tempname);
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(void)Fclose(obuf);
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(void)Fclose(ibuf);
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(void)rm(tempname);
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relsesigs();
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reset(0);
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}
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(void)Fclose(ibuf);
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(void)Fclose(obuf);
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if ((ibuf = Fopen(tempname, "r")) == NULL) {
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warn("%s", tempname);
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(void)rm(tempname);
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relsesigs();
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reset(0);
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}
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(void)rm(tempname);
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}
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(void)printf("\"%s\" ", mailname);
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(void)fflush(stdout);
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if ((obuf = Fopen(mailname, "r+")) == NULL) {
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warn("%s", mailname);
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relsesigs();
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reset(0);
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}
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trunc(obuf);
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c = 0;
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for (mp = get_message(1); mp; mp = next_message(mp)) {
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if ((mp->m_flag & MDELETED) != 0)
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continue;
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c++;
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if (sendmessage(mp, obuf, NULL, NULL, NULL) < 0) {
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warn("%s", mailname);
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relsesigs();
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reset(0);
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}
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}
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gotcha = (c == 0 && ibuf == NULL);
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if (ibuf != NULL) {
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while ((c = getc(ibuf)) != EOF)
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(void)putc(c, obuf);
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(void)Fclose(ibuf);
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}
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(void)fflush(obuf);
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if (ferror(obuf)) {
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warn("%s", mailname);
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relsesigs();
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reset(0);
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}
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(void)Fclose(obuf);
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if (gotcha) {
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(void)rm(mailname);
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(void)printf("removed\n");
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} else
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(void)printf("complete\n");
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(void)fflush(stdout);
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done:
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relsesigs();
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}
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/*
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* Save all of the undetermined messages at the top of "mbox"
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* Save all untouched messages back in the system mailbox.
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* Remove the system mailbox, if none saved there.
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*/
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PUBLIC void
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quit(void)
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{
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int mcount, p, modify, autohold, anystat, holdbit, nohold;
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FILE *ibuf = NULL, *obuf, *fbuf, *rbuf, *readstat = NULL, *abuf;
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struct message *mp;
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int c, fd;
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struct stat minfo;
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const char *mbox;
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char tempname[PATHSIZE];
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#ifdef __GNUC__
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obuf = NULL; /* XXX gcc -Wuninitialized */
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#endif
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/*
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* If we are read only, we can't do anything,
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* so just return quickly.
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*/
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if (readonly)
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return;
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#ifdef THREAD_SUPPORT
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(void)showtagscmd(NULL); /* make sure we see tagged messages */
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(void)unthreadcmd(NULL);
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#endif
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/*
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* If editing (not reading system mail box), then do the work
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* in edstop()
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*/
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if (edit) {
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edstop();
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return;
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}
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/*
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* See if there any messages to save in mbox. If no, we
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* can save copying mbox to /tmp and back.
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*
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* Check also to see if any files need to be preserved.
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* Delete all untouched messages to keep them out of mbox.
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* If all the messages are to be preserved, just exit with
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* a message.
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*/
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fbuf = Fopen(mailname, "r");
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if (fbuf == NULL)
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goto newmail;
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if (flock(fileno(fbuf), LOCK_EX) == -1) {
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nolock:
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warn("Unable to lock mailbox");
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(void)Fclose(fbuf);
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return;
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}
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if (dot_lock(mailname, 1, stdout, ".") == -1)
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goto nolock;
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rbuf = NULL;
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if (fstat(fileno(fbuf), &minfo) >= 0 && minfo.st_size > mailsize) {
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(void)printf("New mail has arrived.\n");
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(void)snprintf(tempname, sizeof(tempname),
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"%s/mail.RqXXXXXXXXXX", tmpdir);
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if ((fd = mkstemp(tempname)) == -1 ||
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(rbuf = Fdopen(fd, "w")) == NULL) {
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if (fd != -1)
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(void)close(fd);
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goto newmail;
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}
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#ifdef APPEND
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(void)fseek(fbuf, (long)mailsize, 0);
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while ((c = getc(fbuf)) != EOF)
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(void)putc(c, rbuf);
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#else
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p = minfo.st_size - mailsize;
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while (p-- > 0) {
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c = getc(fbuf);
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if (c == EOF)
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goto newmail;
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(void)putc(c, rbuf);
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}
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#endif
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(void)fflush(rbuf);
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if (ferror(rbuf)) {
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warn("%s", tempname);
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(void)Fclose(rbuf);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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(void)Fclose(rbuf);
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if ((rbuf = Fopen(tempname, "r")) == NULL)
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goto newmail;
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(void)rm(tempname);
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}
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/*
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* Adjust the message flags in each message.
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*/
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anystat = 0;
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autohold = value(ENAME_HOLD) != NULL;
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holdbit = autohold ? MPRESERVE : MBOX;
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nohold = MBOX|MSAVED|MDELETED|MPRESERVE;
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if (value(ENAME_KEEPSAVE) != NULL)
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nohold &= ~MSAVED;
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for (mp = get_message(1); mp; mp = next_message(mp)) {
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if (mp->m_flag & MNEW) {
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mp->m_flag &= ~MNEW;
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mp->m_flag |= MSTATUS;
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}
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if (mp->m_flag & MSTATUS)
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anystat++;
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if ((mp->m_flag & MTOUCH) == 0)
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mp->m_flag |= MPRESERVE;
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if ((mp->m_flag & nohold) == 0)
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mp->m_flag |= holdbit;
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}
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modify = 0;
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if (Tflag != NULL) {
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if ((readstat = Fopen(Tflag, "w")) == NULL)
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Tflag = NULL;
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}
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for (c = 0, p = 0, mp = get_message(1); mp; mp = next_message(mp)) {
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if (mp->m_flag & MBOX)
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c++;
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if (mp->m_flag & MPRESERVE)
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p++;
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if (mp->m_flag & MMODIFY)
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modify++;
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if (Tflag != NULL && (mp->m_flag & (MREAD|MDELETED)) != 0) {
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char *id;
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if ((id = hfield("article-id", mp)) != NULL)
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(void)fprintf(readstat, "%s\n", id);
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}
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}
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if (Tflag != NULL)
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(void)Fclose(readstat);
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if (p == get_msgCount() && !modify && !anystat) {
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(void)printf("Held %d message%s in %s\n",
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p, p == 1 ? "" : "s", mailname);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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if (c == 0) {
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if (p != 0) {
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(void)writeback(rbuf);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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goto cream;
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}
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/*
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* Create another temporary file and copy user's mbox file
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* darin. If there is no mbox, copy nothing.
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* If he has specified "append" don't copy his mailbox,
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* just copy saveable entries at the end.
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*/
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mbox = expand("&");
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mcount = c;
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if (value(ENAME_APPEND) == NULL) {
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(void)snprintf(tempname, sizeof(tempname),
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"%s/mail.RmXXXXXXXXXX", tmpdir);
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if ((fd = mkstemp(tempname)) == -1 ||
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(obuf = Fdopen(fd, "w")) == NULL) {
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warn("%s", tempname);
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if (fd != -1)
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(void)close(fd);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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if ((ibuf = Fopen(tempname, "r")) == NULL) {
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warn("%s", tempname);
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(void)rm(tempname);
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(void)Fclose(obuf);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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(void)rm(tempname);
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if ((abuf = Fopen(mbox, "r")) != NULL) {
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while ((c = getc(abuf)) != EOF)
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(void)putc(c, obuf);
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(void)Fclose(abuf);
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}
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if (ferror(obuf)) {
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warn("%s", tempname);
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(void)Fclose(ibuf);
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(void)Fclose(obuf);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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(void)Fclose(obuf);
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if ((fd = creat(mbox, 0600)) != -1)
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(void)close(fd);
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if ((obuf = Fopen(mbox, "r+")) == NULL) {
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warn("%s", mbox);
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(void)Fclose(ibuf);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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}
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else {
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if ((obuf = Fopen(mbox, "a")) == NULL) {
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warn("%s", mbox);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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(void)fchmod(fileno(obuf), 0600);
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}
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for (mp = get_message(1); mp; mp = next_message(mp))
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|
if (mp->m_flag & MBOX)
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if (sendmessage(mp, obuf, saveignore, NULL, NULL) < 0) {
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warn("%s", mbox);
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(void)Fclose(ibuf);
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(void)Fclose(obuf);
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(void)Fclose(fbuf);
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dot_unlock(mailname);
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return;
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}
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/*
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* Copy the user's old mbox contents back
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* to the end of the stuff we just saved.
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* If we are appending, this is unnecessary.
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*/
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|
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if (value(ENAME_APPEND) == NULL) {
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rewind(ibuf);
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c = getc(ibuf);
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|
while (c != EOF) {
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(void)putc(c, obuf);
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|
if (ferror(obuf))
|
|
break;
|
|
c = getc(ibuf);
|
|
}
|
|
(void)Fclose(ibuf);
|
|
}
|
|
(void)fflush(obuf);
|
|
if (!ferror(obuf))
|
|
trunc(obuf); /* XXX or should we truncate? */
|
|
if (ferror(obuf)) {
|
|
warn("%s", mbox);
|
|
(void)Fclose(obuf);
|
|
(void)Fclose(fbuf);
|
|
dot_unlock(mailname);
|
|
return;
|
|
}
|
|
(void)Fclose(obuf);
|
|
if (mcount == 1)
|
|
(void)printf("Saved 1 message in mbox\n");
|
|
else
|
|
(void)printf("Saved %d messages in mbox\n", mcount);
|
|
|
|
/*
|
|
* Now we are ready to copy back preserved files to
|
|
* the system mailbox, if any were requested.
|
|
*/
|
|
|
|
if (p != 0) {
|
|
(void)writeback(rbuf);
|
|
(void)Fclose(fbuf);
|
|
dot_unlock(mailname);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Finally, remove his /var/mail file.
|
|
* If new mail has arrived, copy it back.
|
|
*/
|
|
|
|
cream:
|
|
if (rbuf != NULL) {
|
|
abuf = Fopen(mailname, "r+");
|
|
if (abuf == NULL)
|
|
goto newmail;
|
|
while ((c = getc(rbuf)) != EOF)
|
|
(void)putc(c, abuf);
|
|
(void)fflush(abuf);
|
|
if (ferror(abuf)) {
|
|
warn("%s", mailname);
|
|
(void)Fclose(abuf);
|
|
(void)Fclose(fbuf);
|
|
dot_unlock(mailname);
|
|
return;
|
|
}
|
|
(void)Fclose(rbuf);
|
|
trunc(abuf);
|
|
(void)Fclose(abuf);
|
|
alter(mailname);
|
|
(void)Fclose(fbuf);
|
|
dot_unlock(mailname);
|
|
return;
|
|
}
|
|
demail();
|
|
(void)Fclose(fbuf);
|
|
dot_unlock(mailname);
|
|
return;
|
|
|
|
newmail:
|
|
(void)printf("Thou hast new mail.\n");
|
|
if (fbuf != NULL) {
|
|
(void)Fclose(fbuf);
|
|
dot_unlock(mailname);
|
|
}
|
|
}
|