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/*
* Heirloom mailx - a mail user agent derived from Berkeley Mail.
*
* Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
*/
/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#ifdef DOSCCS
static char sccsid[] = "@(#)quit.c 2.30 (gritter) 11/11/08";
#endif
#endif /* not lint */
#include "rcv.h"
#include "extern.h"
#include <stdio.h>
#include <errno.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
/*
* Rcv -- receive mail rationally.
*
* Termination processing.
*/
static int writeback(FILE *res, FILE *obuf);
static void edstop(void);
/*
* The "quit" command.
*/
/*ARGSUSED*/
int
quitcmd(void *v)
{
/*
* If we are sourcing, then return 1 so execute() can handle it.
* Otherwise, return -1 to abort command loop.
*/
if (sourcing)
return 1;
return -1;
}
/*
* Preserve all the appropriate messages back in the system
* mailbox, and print a nice message indicated how many were
* saved. On any error, just return -1. Else return 0.
* Incorporate the any new mail that we found.
*/
static int
writeback(FILE *res, FILE *obuf)
{
struct message *mp;
int p, c;
p = 0;
fseek(obuf, 0L, SEEK_SET);
#ifndef APPEND
if (res != NULL)
while ((c = getc(res)) != EOF)
putc(c, obuf);
#endif
for (mp = &message[0]; mp < &message[msgCount]; mp++)
if ((mp->m_flag&MPRESERVE)||(mp->m_flag&MTOUCH)==0) {
p++;
if (send(mp, obuf, NULL, NULL, SEND_MBOX, NULL) < 0) {
perror(mailname);
fseek(obuf, 0L, SEEK_SET);
return(-1);
}
}
#ifdef APPEND
if (res != NULL)
while ((c = getc(res)) != EOF)
putc(c, obuf);
#endif
fflush(obuf);
trunc(obuf);
if (ferror(obuf)) {
perror(mailname);
fseek(obuf, 0L, SEEK_SET);
return(-1);
}
if (res != NULL)
Fclose(res);
fseek(obuf, 0L, SEEK_SET);
alter(mailname);
if (p == 1)
printf(catgets(catd, CATSET, 155,
"Held 1 message in %s\n"), mailname);
else
printf(catgets(catd, CATSET, 156,
"Held %d messages in %s\n"), p, mailname);
return(0);
}
/*
* Save all of the undetermined messages at the top of "mbox"
* Save all untouched messages back in the system mailbox.
* Remove the system mailbox, if none saved there.
*/
void
quit(void)
{
int p, modify, anystat;
FILE *fbuf, *rbuf, *readstat = NULL, *abuf;
struct message *mp;
int c;
char *tempResid;
struct stat minfo;
/*
* If we are read only, we can't do anything,
* so just return quickly. IMAP can set some
* flags (e.g. "\\Seen") so imap_quit must be
* called even then.
*/
if (mb.mb_perm == 0 && mb.mb_type != MB_IMAP)
return;
switch (mb.mb_type) {
case MB_FILE:
break;
case MB_MAILDIR:
maildir_quit();
return;
case MB_POP3:
pop3_quit();
return;
case MB_IMAP:
case MB_CACHE:
imap_quit();
return;
case MB_VOID:
return;
}
/*
* If editing (not reading system mail box), then do the work
* in edstop()
*/
if (edit) {
edstop();
return;
}
/*
* See if there any messages to save in mbox. If no, we
* can save copying mbox to /tmp and back.
*
* Check also to see if any files need to be preserved.
* Delete all untouched messages to keep them out of mbox.
* If all the messages are to be preserved, just exit with
* a message.
*/
fbuf = Zopen(mailname, "r+", &mb.mb_compressed);
if (fbuf == NULL) {
if (errno == ENOENT)
return;
goto newmail;
}
if (fcntl_lock(fileno(fbuf), F_WRLCK) == -1) {
nolock:
perror(catgets(catd, CATSET, 157, "Unable to lock mailbox"));
Fclose(fbuf);
return;
}
if (dot_lock(mailname, fileno(fbuf), 1, stdout, ".") == -1)
goto nolock;
rbuf = NULL;
if (fstat(fileno(fbuf), &minfo) >= 0 && minfo.st_size > mailsize) {
printf(catgets(catd, CATSET, 158, "New mail has arrived.\n"));
rbuf = Ftemp(&tempResid, "Rq", "w", 0600, 1);
if (rbuf == NULL || fbuf == NULL)
goto newmail;
#ifdef APPEND
fseek(fbuf, (long)mailsize, SEEK_SET);
while ((c = getc(fbuf)) != EOF)
putc(c, rbuf);
#else
p = minfo.st_size - mailsize;
while (p-- > 0) {
c = getc(fbuf);
if (c == EOF)
goto newmail;
putc(c, rbuf);
}
#endif
Fclose(rbuf);
if ((rbuf = Fopen(tempResid, "r")) == NULL)
goto newmail;
rm(tempResid);
Ftfree(&tempResid);
}
anystat = holdbits();
modify = 0;
if (Tflag != NULL) {
if ((readstat = Zopen(Tflag, "w", NULL)) == NULL)
Tflag = NULL;
}
for (c = 0, p = 0, mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MBOX)
c++;
if (mp->m_flag & MPRESERVE)
p++;
if (mp->m_flag & MODIFY)
modify++;
if (readstat != NULL && (mp->m_flag & (MREAD|MDELETED)) != 0) {
char *id;
if ((id = hfield("message-id", mp)) != NULL ||
(id = hfield("article-id", mp)) != NULL)
fprintf(readstat, "%s\n", id);
}
}
if (readstat != NULL)
Fclose(readstat);
if (p == msgCount && !modify && !anystat) {
if (p == 1)
printf(catgets(catd, CATSET, 155,
"Held 1 message in %s\n"), mailname);
else if (p > 1)
printf(catgets(catd, CATSET, 156,
"Held %d messages in %s\n"), p, mailname);
Fclose(fbuf);
dot_unlock(mailname);
return;
}
if (c == 0) {
if (p != 0) {
writeback(rbuf, fbuf);
Fclose(fbuf);
dot_unlock(mailname);
return;
}
goto cream;
}
if (makembox() == STOP) {
Fclose(fbuf);
dot_unlock(mailname);
return;
}
/*
* Now we are ready to copy back preserved files to
* the system mailbox, if any were requested.
*/
if (p != 0) {
writeback(rbuf, fbuf);
Fclose(fbuf);
dot_unlock(mailname);
return;
}
/*
* Finally, remove his /usr/mail file.
* If new mail has arrived, copy it back.
*/
cream:
if (rbuf != NULL) {
abuf = fbuf;
fseek(abuf, 0L, SEEK_SET);
while ((c = getc(rbuf)) != EOF)
putc(c, abuf);
Fclose(rbuf);
trunc(abuf);
alter(mailname);
Fclose(fbuf);
dot_unlock(mailname);
return;
}
demail();
Fclose(fbuf);
dot_unlock(mailname);
return;
newmail:
printf(catgets(catd, CATSET, 166, "Thou hast new mail.\n"));
if (fbuf != NULL) {
Fclose(fbuf);
dot_unlock(mailname);
}
}
/*
* Adjust the message flags in each message.
*/
int
holdbits(void)
{
struct message *mp;
int anystat, autohold, holdbit, nohold;
anystat = 0;
autohold = value("hold") != NULL;
holdbit = autohold ? MPRESERVE : MBOX;
nohold = MBOX|MSAVED|MDELETED|MPRESERVE;
if (value("keepsave") != NULL)
nohold &= ~MSAVED;
for (mp = &message[0]; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MNEW) {
mp->m_flag &= ~MNEW;
mp->m_flag |= MSTATUS;
}
if (mp->m_flag & (MSTATUS|MFLAG|MUNFLAG|MANSWER|MUNANSWER|
MDRAFT|MUNDRAFT))
anystat++;
if ((mp->m_flag & MTOUCH) == 0)
mp->m_flag |= MPRESERVE;
if ((mp->m_flag & nohold) == 0)
mp->m_flag |= holdbit;
}
return anystat;
}
/*
* Create another temporary file and copy user's mbox file
* darin. If there is no mbox, copy nothing.
* If he has specified "append" don't copy his mailbox,
* just copy saveable entries at the end.
*/
enum okay
makembox(void)
{
struct message *mp;
char *mbox, *tempQuit;
int mcount, c;
FILE *ibuf = NULL, *obuf, *abuf;
enum protocol prot;
mbox = mboxname;
mcount = 0;
if (value("append") == NULL) {
if ((obuf = Ftemp(&tempQuit, "Rm", "w", 0600, 1)) == NULL) {
perror(catgets(catd, CATSET, 162,
"temporary mail quit file"));
return STOP;
}
if ((ibuf = Fopen(tempQuit, "r")) == NULL) {
perror(tempQuit);
rm(tempQuit);
Ftfree(&tempQuit);
Fclose(obuf);
return STOP;
}
rm(tempQuit);
Ftfree(&tempQuit);
if ((abuf = Zopen(mbox, "r", NULL)) != NULL) {
while ((c = getc(abuf)) != EOF)
putc(c, obuf);
Fclose(abuf);
}
if (ferror(obuf)) {
perror(catgets(catd, CATSET, 163,
"temporary mail quit file"));
Fclose(ibuf);
Fclose(obuf);
return STOP;
}
Fclose(obuf);
close(creat(mbox, 0600));
if ((obuf = Zopen(mbox, "r+", NULL)) == NULL) {
perror(mbox);
Fclose(ibuf);
return STOP;
}
}
else {
if ((obuf = Zopen(mbox, "a", NULL)) == NULL) {
perror(mbox);
return STOP;
}
fchmod(fileno(obuf), 0600);
}
prot = which_protocol(mbox);
for (mp = &message[0]; mp < &message[msgCount]; mp++)
if (mp->m_flag & MBOX) {
mcount++;
if (prot == PROTO_IMAP &&
saveignore[0].i_count == 0 &&
saveignore[1].i_count == 0 &&
imap_thisaccount(mbox)) {
if (imap_copy(mp, mp-message+1, mbox) == STOP)
goto err;
} else if (send(mp, obuf, saveignore,
NULL, SEND_MBOX, NULL) < 0) {
perror(mbox);
err: if (ibuf)
Fclose(ibuf);
Fclose(obuf);
return STOP;
}
mp->m_flag |= MBOXED;
}
/*
* Copy the user's old mbox contents back
* to the end of the stuff we just saved.
* If we are appending, this is unnecessary.
*/
if (value("append") == NULL) {
rewind(ibuf);
c = getc(ibuf);
while (c != EOF) {
putc(c, obuf);
if (ferror(obuf))
break;
c = getc(ibuf);
}
Fclose(ibuf);
fflush(obuf);
}
trunc(obuf);
if (ferror(obuf)) {
perror(mbox);
Fclose(obuf);
return STOP;
}
if (Fclose(obuf) != 0) {
if (prot != PROTO_IMAP)
perror(mbox);
return STOP;
}
if (mcount == 1)
printf(catgets(catd, CATSET, 164, "Saved 1 message in mbox\n"));
else
printf(catgets(catd, CATSET, 165,
"Saved %d messages in mbox\n"), mcount);
return OKAY;
}
/*
* Terminate an editing session by attempting to write out the user's
* file from the temporary. Save any new stuff appended to the file.
*/
static void
edstop(void)
{
int gotcha, c;
struct message *mp;
FILE *obuf, *ibuf = NULL, *readstat = NULL;
struct stat statb;
if (mb.mb_perm == 0)
return;
holdsigs();
if (Tflag != NULL) {
if ((readstat = Zopen(Tflag, "w", NULL)) == NULL)
Tflag = NULL;
}
for (mp = &message[0], gotcha = 0; mp < &message[msgCount]; mp++) {
if (mp->m_flag & MNEW) {
mp->m_flag &= ~MNEW;
mp->m_flag |= MSTATUS;
}
if (mp->m_flag & (MODIFY|MDELETED|MSTATUS|MFLAG|MUNFLAG|
MANSWER|MUNANSWER|MDRAFT|MUNDRAFT))
gotcha++;
if (readstat != NULL && (mp->m_flag & (MREAD|MDELETED)) != 0) {
char *id;
if ((id = hfield("message-id", mp)) != NULL ||
(id = hfield("article-id", mp)) != NULL)
fprintf(readstat, "%s\n", id);
}
}
if (readstat != NULL)
Fclose(readstat);
if (!gotcha || Tflag != NULL)
goto done;
ibuf = NULL;
if (stat(mailname, &statb) >= 0 && statb.st_size > mailsize) {
char *tempname;
if ((obuf = Ftemp(&tempname, "mbox.", "w", 0600, 1)) == NULL) {
perror(catgets(catd, CATSET, 167, "tmpfile"));
relsesigs();
reset(0);
}
if ((ibuf = Zopen(mailname, "r", &mb.mb_compressed)) == NULL) {
perror(mailname);
Fclose(obuf);
rm(tempname);
Ftfree(&tempname);
relsesigs();
reset(0);
}
fseek(ibuf, (long)mailsize, SEEK_SET);
while ((c = getc(ibuf)) != EOF)
putc(c, obuf);
Fclose(ibuf);
Fclose(obuf);
if ((ibuf = Fopen(tempname, "r")) == NULL) {
perror(tempname);
rm(tempname);
Ftfree(&tempname);
relsesigs();
reset(0);
}
rm(tempname);
Ftfree(&tempname);
}
printf(catgets(catd, CATSET, 168, "\"%s\" "), mailname);
fflush(stdout);
if ((obuf = Zopen(mailname, "r+", &mb.mb_compressed)) == NULL) {
perror(mailname);
relsesigs();
reset(0);
}
trunc(obuf);
c = 0;
for (mp = &message[0]; mp < &message[msgCount]; mp++) {
if ((mp->m_flag & MDELETED) != 0)
continue;
c++;
if (send(mp, obuf, NULL, NULL, SEND_MBOX, NULL) < 0) {
perror(mailname);
relsesigs();
reset(0);
}
}
gotcha = (c == 0 && ibuf == NULL);
if (ibuf != NULL) {
while ((c = getc(ibuf)) != EOF)
putc(c, obuf);
Fclose(ibuf);
}
fflush(obuf);
if (ferror(obuf)) {
perror(mailname);
relsesigs();
reset(0);
}
Fclose(obuf);
if (gotcha && value("emptybox") == NULL) {
rm(mailname);
printf(value("bsdcompat") || value("bsdmsgs") ?
catgets(catd, CATSET, 169, "removed\n") :
catgets(catd, CATSET, 211, "removed.\n"));
} else
printf(value("bsdcompat") || value("bsdmsgs") ?
catgets(catd, CATSET, 170, "complete\n") :
catgets(catd, CATSET, 212, "updated.\n"));
fflush(stdout);
done:
relsesigs();
}
enum quitflags {
QUITFLAG_HOLD = 001,
QUITFLAG_KEEPSAVE = 002,
QUITFLAG_APPEND = 004,
QUITFLAG_EMPTYBOX = 010
};
static const struct quitnames {
enum quitflags flag;
const char *name;
} quitnames[] = {
{ QUITFLAG_HOLD, "hold" },
{ QUITFLAG_KEEPSAVE, "keepsave" },
{ QUITFLAG_APPEND, "append" },
{ QUITFLAG_EMPTYBOX, "emptybox" },
{ 0, NULL }
};
int
savequitflags(void)
{
enum quitflags qf = 0;
int i;
for (i = 0; quitnames[i].name; i++)
if (value(quitnames[i].name))
qf |= quitnames[i].flag;
return qf;
}
void
restorequitflags(int qf)
{
int i;
for (i = 0; quitnames[i].name; i++)
if (qf & quitnames[i].flag) {
if (value(quitnames[i].name) == NULL)
assign(quitnames[i].name, "");
} else if (value(quitnames[i].name))
unset_internal(quitnames[i].name);
}
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