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deb-mbse/mbfido/mbfido.c
Michiel Broek 1d076afea1 Fixes for Fedora Linux
2004-04-09 18:31:22 +00:00

806 lines
21 KiB
C
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/*****************************************************************************
*
* $Id$
* Purpose: Process Fidonet style mail and files.
*
*****************************************************************************
* Copyright (C) 1997-2004
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* MBSE BBS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*****************************************************************************/
#include "../config.h"
#include "../lib/mbselib.h"
#include "../lib/mbse.h"
#include "../lib/users.h"
#include "../lib/nodelist.h"
#include "../lib/mbsedb.h"
#include "../lib/msg.h"
#include "flock.h"
#include "tosspkt.h"
#include "unpack.h"
#include "tic.h"
#include "fsort.h"
#include "scan.h"
#include "mbfido.h"
#include "tracker.h"
#include "notify.h"
#include "rollover.h"
#include "hatch.h"
#include "scannews.h"
#include "maketags.h"
#include "makestat.h"
#include "newspost.h"
#include "rnews.h"
#include "mgrutil.h"
#include "backalias.h"
#include "rfc2ftn.h"
#include "dirsession.h"
#include "dirlock.h"
#include "queue.h"
#define UNPACK_FACTOR 300
int do_areas = FALSE; /* Process area taglists */
int do_toss = FALSE; /* Toss flag */
int do_scan = FALSE; /* Scan flag */
int do_tic = FALSE; /* Process .tic files */
int do_notify = FALSE; /* Create notify messages */
int do_roll = FALSE; /* Rollover only */
int do_full = FALSE; /* Full mailscan */
int do_tags = FALSE; /* Create taglists */
int do_stat = FALSE; /* Create statistic HTML pages */
int do_test = FALSE; /* Test routing */
int do_news = FALSE; /* Process NNTP news */
int do_uucp = FALSE; /* Process UUCP newsbatch */
int do_mail = FALSE; /* Process MTA email message */
int do_unsec = FALSE; /* Unsecure tossing */
int do_learn = FALSE; /* News articles learnmode */
int check_crc = TRUE; /* Check .tic crc values */
int check_dupe = TRUE; /* Check duplicates */
int do_flush = FALSE; /* Flush outbound queue */
int flushed = FALSE; /* If anything was flushed */
extern int do_quiet; /* Quiet flag */
extern int e_pid; /* Pid of child process */
extern int show_log; /* Show logging on screen */
int do_unprot = FALSE; /* Unprotected inbound flag */
time_t t_start; /* Start time */
time_t t_end; /* End time */
int packets = 0; /* Tossed packets */
int packets_ok = 0; /* Tossed packets Ok. */
char *envptr = NULL;
extern int net_in, net_imp, net_out, net_bad;
extern int echo_in, echo_imp, echo_out, echo_bad, echo_dupe;
extern int email_in, email_imp, email_out, email_bad;
extern int news_in, news_imp, news_out, news_bad, news_dupe;
extern int tic_in, tic_imp, tic_out, tic_bad, tic_dup;
extern int Magics, Hatched;
extern int notify, filemgr, areamgr;
/*
* If we don't know what to type
*/
void Help(void)
{
do_quiet = FALSE;
ProgName();
colour(LIGHTCYAN, BLACK);
printf("\nUsage: mbfido [command(s)] <options>\n\n");
colour(LIGHTBLUE, BLACK);
printf(" Commands are:\n\n");
colour(CYAN, BLACK);
printf(" a areas Process Areas taglists\n");
printf(" m mail <recipient> ... MTA Mail mode\n");
printf(" ne news Scan for new news\n");
printf(" no notify <nodes> Send notify messages\n");
printf(" r roll Rollover statistic counters\n");
printf(" s scan Scan outgoing Fido mail\n");
printf(" ta tag Create taglists\n");
printf(" te test <node> Do routing test for node\n");
printf(" ti tic Process .tic files\n");
printf(" to toss Toss incoming Fido mail\n");
printf(" u uucp Process UUCP batchfile\n");
printf(" w web Create WWW statistics\n\n");
colour(LIGHTBLUE, BLACK);
printf(" Options are:\n\n");
colour(CYAN, BLACK);
printf(" -f -full Full Mailscan\n");
printf(" -l -learn Learn News dupes\n");
printf(" -noc -nocrc Skip CRC checking\n");
printf(" -nod -nodupe Skip dupe checking\n");
printf(" -q -quiet Quiet mode\n");
printf(" -uns -unsecure Toss unsecure\n");
printf(" -unp -unprotect Toss unprotected inbound\n");
colour(LIGHTGRAY, BLACK);
ExitClient(MBERR_COMMANDLINE);
}
/*
* Header, only if not quiet.
*/
void ProgName(void)
{
if (do_quiet)
return;
colour(WHITE, BLACK);
printf("\nMBFIDO: MBSE BBS %s - Fidonet File and Mail processor\n", VERSION);
colour(YELLOW, BLACK);
printf(" %s\n", COPYRIGHT);
}
void die(int onsig)
{
/*
* First check if there is a child running, if so, kill it.
*/
if (e_pid) {
if ((kill(e_pid, SIGTERM)) == 0)
Syslog('+', "SIGTERM to pid %d succeeded", e_pid);
else {
if ((kill(e_pid, SIGKILL)) == 0)
Syslog('+', "SIGKILL to pid %d succeeded", e_pid);
else
WriteError("Failed to kill pid %d", e_pid);
}
/*
* In case the child had the tty in raw mode, reset the tty.
*/
execute_pth((char *)"stty", (char *)"sane", (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null");
}
if (onsig != MBERR_NO_PROGLOCK)
CloseDupes();
/*
* Check for locked and open message base.
*/
if (MsgBase.Locked)
Msg_UnLock();
if (MsgBase.Open)
Msg_Close();
signal(onsig, SIG_IGN);
deinitnl();
if (!do_quiet) {
show_log = TRUE;
colour(CYAN, BLACK);
}
if (onsig) {
if (onsig <= NSIG)
WriteError("Terminated on signal %d (%s)", onsig, SigName[onsig]);
else
WriteError("Terminated with error %d", onsig);
}
if (echo_imp + net_imp + net_out + echo_out)
CreateSema((char *)"msglink");
if ((echo_out + net_out + tic_out) || flushed)
CreateSema((char *)"scanout");
if (tic_imp)
CreateSema((char *)"reqindex");
if (net_in + net_imp + net_out + net_bad)
Syslog('+', "Netmail [%4d] import [%4d] out [%4d] bad [%4d]", net_in, net_imp, net_out, net_bad);
if (email_in + email_imp + email_out + email_bad)
Syslog('+', "Email [%4d] import [%4d] out [%4d] bad [%4d]", email_in, email_imp, email_out, email_bad);
if (echo_in + echo_imp + echo_out + echo_bad + echo_dupe)
Syslog('+', "Echomail [%4d] import [%4d] out [%4d] bad [%4d] dupe [%4d]", echo_in, echo_imp, echo_out, echo_bad, echo_dupe);
if (news_in + news_imp + news_out + news_bad + news_dupe)
Syslog('+', "News [%4d] import [%4d] out [%4d] bad [%4d] dupe [%4d]", news_in, news_imp, news_out, news_bad, news_dupe);
if (tic_in + tic_imp + tic_out + tic_bad + tic_dup)
Syslog('+', "TICfiles [%4d] import [%4d] out [%4d] bad [%4d] dupe [%4d]", tic_in, tic_imp, tic_out, tic_bad, tic_dup);
if (Magics + Hatched)
Syslog('+', " Magics [%4d] hatch [%4d]", Magics, Hatched);
if (notify + areamgr + filemgr)
Syslog('+', "Notify msgs [%4d] AreaMgr [%4d] FileMgr [%4d]", notify, areamgr, filemgr);
/*
* There should be no locks anymore, but in case of a crash try to unlock
* all possible directories. Only if onsig <> 110, this was a lock error
* and there should be no lock. We prevent removing the lock of another
* mbfido this way.
*/
if (onsig != MBERR_NO_PROGLOCK) {
ulockdir(CFG.inbound);
ulockdir(CFG.pinbound);
ulockdir(CFG.out_queue);
}
t_end = time(NULL);
Syslog(' ', "MBFIDO finished in %s", t_elapsed(t_start, t_end));
if (!do_quiet)
colour(LIGHTGRAY, BLACK);
ExitClient(onsig);
}
int main(int argc, char **argv)
{
int i, Loop, envrecip_count = 0;
char *p, *cmd, *temp, Options[81];
struct passwd *pw;
struct tm *t;
fa_list **envrecip, *envrecip_start = NULL;
faddr *taddr = NULL;
FILE *ofp;
/*
* The next trick is to supply a fake environment variable
* MBSE_ROOT in case we are started from UUCP or the MTA.
* this will setup the variable so InitConfig() will work.
* The /etc/passwd must point to the correct homedirectory.
* Some programs can't set uid to mbse, so mbfido is installed
* setuid mbse.
*/
if (getenv("MBSE_ROOT") == NULL) {
pw = getpwuid(getuid());
if (strcmp(pw->pw_name, "mbse")) {
/*
* We are not running as user mbse.
*/
pw = getpwnam("mbse");
if (setuid(pw->pw_uid)) {
printf("Fatal error: can't set uid to user mbse\n");
}
}
envptr = xstrcpy((char *)"MBSE_ROOT=");
envptr = xstrcat(envptr, pw->pw_dir);
putenv(envptr);
}
InitConfig();
memset(&Options, 0, sizeof(Options));
/*
* Initialize global variables, data records.
*/
InitNode();
InitMsgs();
InitTic();
InitUser();
InitFidonet();
TermInit(1, 80, 25);
t_start = time(NULL);
t = localtime(&t_start);
Diw = t->tm_wday;
Miy = t->tm_mon;
umask(002);
/*
* Catch all the signals we can, and ignore the rest.
*/
for(i = 0; i < NSIG; i++) {
if ((i == SIGINT) || (i == SIGBUS) || (i == SIGILL) || (i == SIGSEGV) || (i == SIGTERM))
signal(i, (void (*))die);
else if (i == SIGCHLD)
signal(i, SIG_DFL);
else if ((i != SIGKILL) && (i != SIGSTOP))
signal(i, SIG_IGN);
}
if ((p = strrchr(argv[0], '/')))
p++;
else
p = argv[0];
if (!strcmp(p, "mbmail")) {
do_quiet = TRUE;
do_mail = TRUE;
cmd = xstrcpy((char *)"Cmd: mbmail");
} else if (!strcmp(p, "mbnews")) {
do_quiet = TRUE;
do_uucp = TRUE;
cmd = xstrcpy((char *)"Cmd: mbnews");
} else {
if (argc < 2)
Help();
cmd = xstrcpy((char *)"Cmd: mbfido");
}
envrecip = &envrecip_start;
for (i = 1; i < argc; i++) {
cmd = xstrcat(cmd, (char *)" ");
cmd = xstrcat(cmd, argv[i]);
if (strncmp(tl(argv[i]), "ne", 2) == 0)
do_news = TRUE;
if (strncmp(tl(argv[i]), "no", 2) == 0) {
do_notify = TRUE;
if (((i + 1) < argc) &&
((strchr(argv[i + 1], ':') != NULL) ||
(atoi(argv[i + 1])) ||
(strncmp(argv[i + 1], "*", 1) == 0))) {
sprintf(Options, "%s", argv[i + 1]);
i++;
}
}
if (strncmp(tl(argv[i]), "r", 1) == 0)
do_roll = TRUE;
else if (strncmp(tl(argv[i]), "a", 1) == 0)
do_areas = TRUE;
else if (strncmp(tl(argv[i]), "s", 1) == 0)
do_scan = TRUE;
else if (strncmp(tl(argv[i]), "ta", 2) == 0)
do_tags = TRUE;
else if (strncmp(tl(argv[i]), "ti", 2) == 0)
do_tic = TRUE;
else if (strncmp(tl(argv[i]), "te", 2) == 0) {
do_test = TRUE;
if ((i + 1) < argc) {
if ((taddr = parsefaddr(argv[i + 1])) == NULL) {
Help();
}
i++;
cmd = xstrcat(cmd, (char *)" ");
cmd = xstrcat(cmd, argv[i]);
}
} else if (strncmp(tl(argv[i]), "to", 2) == 0)
do_toss = TRUE;
else if (strncmp(tl(argv[i]), "u", 1) == 0)
do_uucp = TRUE;
else if (strncmp(tl(argv[i]), "m", 1) == 0)
do_mail = TRUE;
else if (strncmp(tl(argv[i]), "w", 1) == 0)
do_stat = TRUE;
else if (strncmp(tl(argv[i]), "-f", 2) == 0)
do_full = TRUE;
else if (strncmp(tl(argv[i]), "-l", 2) == 0)
do_learn = TRUE;
else if (strncmp(tl(argv[i]), "-noc", 4) == 0)
check_crc = FALSE;
else if (strncmp(tl(argv[i]), "-nod", 4) == 0)
check_dupe = FALSE;
else if (strncmp(tl(argv[i]), "-q", 2) == 0)
do_quiet = TRUE;
else if (strncmp(tl(argv[i]), "-a", 2) == 0)
WriteError("The -a option is obsolete, adjust your setup");
else if (strncmp(tl(argv[i]), "-unp", 4) == 0)
do_unprot = TRUE;
else if (strncmp(tl(argv[i]), "-uns", 4) == 0)
do_unsec = TRUE;
else if (do_mail) {
/*
* Possible recipient address(es).
*/
if ((taddr = parsefaddr(argv[i]))) {
(*envrecip) = (fa_list*)malloc(sizeof(fa_list));
(*envrecip)->next = NULL;
(*envrecip)->addr = taddr;
envrecip = &((*envrecip)->next);
envrecip_count++;
} else {
cmd = strcat(cmd, (char *)" <- unparsable recipient! ");
}
}
}
ProgName();
pw = getpwuid(getuid());
InitClient(pw->pw_name, (char *)"mbfido", CFG.location, CFG.logfile,
CFG.util_loglevel, CFG.error_log, CFG.mgrlog, CFG.debuglog);
Syslog(' ', " ");
Syslog(' ', "MBFIDO v%s", VERSION);
Syslog(' ', cmd);
free(cmd);
/*
* Not yet locked, if anything goes wrong, exit with die(MBERR_NO_PROGLOCK)
*/
if (enoughspace(CFG.freespace) == 0)
die(MBERR_DISK_FULL);
if (do_mail) {
/*
* Try to get a lock for a long time, another mbfido may be legally
* running since mbmail is started by the MTA instead of by mbtask.
* The timeout is 10 minutes. If mbmail times out, the MTA will
* bounce the message. What happens during the time we wait is
* unknown, will the MTA be patient enough?
*/
i = 30;
while (TRUE) {
if (do_unprot) {
if (lockdir(CFG.inbound))
break;
} else {
if (lockdir(CFG.pinbound))
break;
}
i--;
if (! i) {
WriteError("Lock timeout, aborting");
die(MBERR_NO_PROGLOCK);
}
sleep(20);
Nopper();
}
} else {
/*
* Started under control of mbtask, that means if there is a lock then
* there is something wrong; abort.
*/
if (do_unprot) {
if (! lockdir(CFG.inbound))
die(MBERR_NO_PROGLOCK);
} else {
if (! lockdir(CFG.pinbound))
die(MBERR_NO_PROGLOCK);
}
}
/*
* Locking succeeded, no more abort alowed with die(110)
*/
if (initnl())
die(MBERR_INIT_ERROR);
if (!do_mail && !do_uucp)
Rollover();
if (!do_quiet)
printf("\n");
/*
* Read alias file
*/
cmd = calloc(PATH_MAX, sizeof(char));
sprintf(cmd, "%s/etc/aliases", getenv("MBSE_ROOT"));
if ((do_news || do_scan || do_toss || do_mail) && file_exist(cmd, R_OK) == 0)
readalias(cmd);
free(cmd);
if (do_mail) {
if (!envrecip_count) {
WriteError("No valid receipients specified, aborting");
die(MBERR_NO_RECIPIENTS);
}
umask(066);
if ((ofp = tmpfile()) == NULL) {
WriteError("$Can't open tmpfile for RFC message");
die(MBERR_INIT_ERROR);
}
temp = calloc(10240, sizeof(char));
while (fgets(temp, 10240, stdin))
fprintf(ofp, temp);
free(temp);
for (envrecip = &envrecip_start; *envrecip; envrecip = &((*envrecip)->next)) {
Syslog('+', "Message to: %s", ascfnode((*envrecip)->addr, 0x7f));
rfc2ftn(ofp, (*envrecip)->addr);
}
fclose(ofp);
flush_queue();
die(MBERR_OK);
}
InitDupes();
if (do_notify)
if (Notify(Options)) {
do_flush = TRUE;
}
if (do_tic) {
if (IsSema((char *)"mailin"))
RemoveSema((char *)"mailin");
/*
* Hatch new files and process .tic files
* until nothing left to do.
*/
Loop = TRUE;
do {
Hatch();
switch (Tic()) {
case -1: die(MBERR_OK);
break;
case 0: Loop = FALSE;
break;
default: break;
}
} while (Loop);
}
if (do_news) {
ScanNews();
if (IsSema((char *)"newnews"))
RemoveSema((char *)"newnews");
}
if (do_scan)
ScanMail(do_full);
if (do_toss) {
if (IsSema((char *)"mailin"))
RemoveSema((char *)"mailin");
if (TossMail() == FALSE)
die(MBERR_OK);
}
if (do_tic || do_toss) {
/*
* Do inbound direcory sessions
*/
if (dirinbound()) {
if (do_tic) {
/*
* Hatch new files and process .tic files
* until nothing left to do.
*/
Loop = TRUE;
do {
Hatch();
switch (Tic()) {
case -1: die(MBERR_OK);
break;
case 0: Loop = FALSE;
break;
default: break;
}
} while (Loop);
}
if (do_toss) {
TossMail();
}
}
}
if (!do_uucp)
newspost();
if (do_test) {
if (taddr == NULL)
Help();
TestTracker(taddr);
tidy_faddr(taddr);
}
if (do_tags)
MakeTags();
if (do_stat)
MakeStat();
if (do_uucp)
NewsUUCP();
if (do_areas)
Areas();
if (do_flush)
flush_queue();
die(MBERR_OK);
return 0;
}
/*
* Toss Fidonet mail
*/
int TossMail(void)
{
char *inbound, *fname;
DIR *dp;
struct dirent *de;
struct stat sbuf;
int files = 0, files_ok = 0, rc = 0, maxrc = 0;
fd_list *fdl = NULL;
if (do_unprot)
inbound = xstrcpy(CFG.inbound);
else
inbound = xstrcpy(CFG.pinbound);
Syslog('+', "Pass: toss netmail (%s)", inbound);
if (chdir(inbound) == -1) {
WriteError("$Can't chdir(%s)", inbound);
die(MBERR_INIT_ERROR);
}
/*
* First toss any netmail packets.
*/
maxrc = rc = TossPkts();
chdir(inbound);
/*
* Scan the directory for ARCmail archives. The archive extension
* numbering doesn't matter, as long as there is something, so
* all kind of ARCmail naming schemes are recognized.
*/
if ((dp = opendir(inbound)) == NULL) {
WriteError("$Can't opendir(%s)", inbound);
die(MBERR_INIT_ERROR);
}
Syslog('+', "Pass: toss ARCmail (%s)", inbound);
/*
* Add all ARCmail filenames to the memory array.
*/
sync();
while ((de=readdir(dp)))
if ((strlen(de->d_name) == 12) && ((strncasecmp(de->d_name+8,".su",3) == 0) ||
(strncasecmp(de->d_name+8,".mo",3) == 0) || (strncasecmp(de->d_name+8,".tu",3) == 0) ||
(strncasecmp(de->d_name+8,".we",3) == 0) || (strncasecmp(de->d_name+8,".th",3) == 0) ||
(strncasecmp(de->d_name+8,".fr",3) == 0) || (strncasecmp(de->d_name+8,".sa",3) == 0))) {
stat(de->d_name, &sbuf);
fill_fdlist(&fdl, de->d_name, sbuf.st_mtime);
}
closedir(dp);
sort_fdlist(&fdl);
/*
* Now process the archives, the oldest first.
*/
while ((fname = pull_fdlist(&fdl)) != NULL) {
files++;
IsDoing("Unpack arcmail");
if (IsSema((char *)"upsalarm")) {
Syslog('+', "Detected upsalarm semafore, aborting toss");
break;
}
if (enoughspace(CFG.freespace) == 0) {
Syslog('+', "Low diskspace, aborting toss");
rc = MBERR_DISK_FULL;
break;
}
if (checkspace(inbound, fname, UNPACK_FACTOR))
if ((rc = unpack(fname)) == 0) {
files_ok++;
rc = TossPkts();
chdir(inbound);
} else
WriteError("Error unpacking file %s", fname);
else
Syslog('!', "Insufficient space to unpack file %s", fname);
if (rc > maxrc)
maxrc = rc;
}
free(inbound);
if ((files || packets) && ((files_ok != files) || (packets_ok != packets)))
Syslog('!', "Processed %d of %d files, %d of %d packets, rc=%d", files_ok, files, packets_ok, packets, maxrc);
return TRUE;
}
/*
* Toss all packets currently in the inbound. Tossing is sorted by
* age of the files.
*/
int TossPkts(void)
{
char *inbound = NULL, *fname;
DIR *dp;
struct dirent *de;
struct stat sbuf;
int rc = 0, maxrc = 0;
fd_list *fdl = NULL;
IsDoing("Tossing mail");
if (do_unprot)
inbound = xstrcpy(CFG.inbound);
else
inbound = xstrcpy(CFG.pinbound);
if ((dp = opendir(inbound)) == NULL) {
WriteError("$Can't opendir(%s)", inbound);
return FALSE;
}
/*
* Read all .pkt filenames, get the timestamp and add them
* to the memory array for later sort on filedate.
*/
while ((de = readdir(dp)))
if ((strlen(de->d_name) == 12) && (strncasecmp(de->d_name+8,".pkt",4) == 0)) {
stat(de->d_name, &sbuf);
fill_fdlist(&fdl, de->d_name, sbuf.st_mtime);
}
closedir(dp);
sort_fdlist(&fdl);
/*
* Get the filenames, the oldest first until nothing left.
*/
while ((fname = pull_fdlist(&fdl)) != NULL) {
if (enoughspace(CFG.freespace) == 0) {
Syslog('+', "Low diskspace, abort tossing packet");
return FALSE;
}
packets++;
/*
* See if "pktdate" from Tobias Ernst (or another preprocessor) is installed.
*/
if (strlen(CFG.pktdate)) {
rc = execute_str(CFG.pktdate, fname, (char *)NULL, (char *)"/dev/null", (char *)"/dev/null", (char *)"/dev/null");
if (rc)
Syslog('+', "%s preprocessing rc=%d", fname, rc);
}
if ((rc = toss(fname)) == 0)
packets_ok++;
else
WriteError("Error tossing packet %s", fname);
if (rc > maxrc)
maxrc = rc;
}
free(inbound);
do_flush = TRUE;
return maxrc;
}
/*
* Toss one packet
*/
int toss(char *fn)
{
int rc = 0, ld;
char newname[16];
/*
* Lock the packet
*/
if ((ld = f_lock(fn)) == -1)
return 1;
rc = TossPkt(fn);
if (rc == 0) {
unlink(fn);
} else {
strncpy(newname,fn,sizeof(newname)-1);
strcpy(newname+8,".bad");
rename(fn,newname);
}
funlock(ld);
return rc;
}
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