void
main(int argc, char **argv)
{
int i, ok, rcvrs;
char *addr, *rv, *trv, *host, *domain;
char **errs;
char hellodomain[256];
String *from, *fromm, *sender;
alarmscale = 60*1000; /* minutes */
quotefmtinstall();
fmtinstall('[', encodefmt);
errs = malloc(argc*sizeof(char*));
reply = s_new();
host = 0;
ARGBEGIN{
case 'a':
tryauth = 1;
if(trysecure == 0)
trysecure = 1;
break;
case 'A': /* autistic: won't talk to us until we talk (Verizon) */
autistic = 1;
break;
case 'b':
if (bustedmx >= Maxbustedmx)
sysfatal("more than %d busted mxs given", Maxbustedmx);
bustedmxs[bustedmx++] = EARGF(usage());
break;
case 'd':
debug = 1;
break;
case 'f':
filter = 1;
break;
case 'g':
gdomain = EARGF(usage());
break;
case 'h':
host = EARGF(usage());
break;
case 'i':
insecure = 1;
break;
case 'p':
alarmscale = 10*1000; /* tens of seconds */
ping = 1;
break;
case 's':
if(trysecure == 0)
trysecure = 1;
break;
case 't':
trysecure = 2;
break;
case 'u':
user = EARGF(usage());
break;
default:
usage();
break;
}ARGEND;
Binit(&berr, 2, OWRITE);
Binit(&bfile, 0, OREAD);
/*
* get domain and add to host name
*/
if(*argv && **argv=='.') {
domain = *argv;
argv++; argc--;
} else
domain = domainname_read();
if(host == 0)
host = sysname_read();
strcpy(hostdomain, domainify(host, domain));
strcpy(hellodomain, domainify(sysname_read(), domain));
/*
* get destination address
*/
if(*argv == 0)
usage();
addr = *argv++; argc--;
farend = addr;
/*
* get sender's machine.
* get sender in internet style. domainify if necessary.
*/
if(*argv == 0)
usage();
sender = unescapespecial(s_copy(*argv++));
argc--;
fromm = s_clone(sender);
rv = strrchr(s_to_c(fromm), '!');
if(rv)
*rv = 0;
else
*s_to_c(fromm) = 0;
from = bangtoat(s_to_c(sender));
/*
* send the mail
*/
if(filter){
Binit(&bout, 1, OWRITE);
rv = data(from, &bfile);
if(rv != 0)
goto error;
exits(0);
}
/* mxdial uses its own timeout handler */
if((rv = connect(addr)) != 0)
exits(rv);
/* 10 minutes to get through the initial handshake */
atnotify(timeout, 1);
alarm(10*alarmscale);
if((rv = hello(hellodomain, 0)) != 0)
goto error;
alarm(10*alarmscale);
if((rv = mailfrom(s_to_c(from))) != 0)
goto error;
ok = 0;
rcvrs = 0;
/* if any rcvrs are ok, we try to send the message */
for(i = 0; i < argc; i++){
if((trv = rcptto(argv[i])) != 0){
/* remember worst error */
if(rv != Giveup)
rv = trv;
errs[rcvrs] = strdup(s_to_c(reply));
removenewline(errs[rcvrs]);
} else {
ok++;
errs[rcvrs] = 0;
}
rcvrs++;
}
/* if no ok rcvrs or worst error is retry, give up */
if(ok == 0 || rv == Retry)
goto error;
if(ping){
quit(0);
exits(0);
}
rv = data(from, &bfile);
if(rv != 0)
goto error;
quit(0);
if(rcvrs == ok)
exits(0);
/*
* here when some but not all rcvrs failed
*/
fprint(2, "%s connect to %s:\n", thedate(), addr);
for(i = 0; i < rcvrs; i++){
if(errs[i]){
syslog(0, "smtp.fail", "delivery to %s at %s failed: %s", argv[i], addr, errs[i]);
fprint(2, " mail to %s failed: %s", argv[i], errs[i]);
}
}
exits(Giveup);
/*
* here when all rcvrs failed
*/
error:
removenewline(s_to_c(reply));
syslog(0, "smtp.fail", "%s to %s failed: %s",
ping ? "ping" : "delivery",
addr, s_to_c(reply));
fprint(2, "%s connect to %s:\n%s\n", thedate(), addr, s_to_c(reply));
if(!filter)
quit(rv);
exits(rv);
}
void
main(int argc, char **argv)
{
char *netdir;
char buf[1024];
netdir = nil;
quotefmtinstall();
fmtinstall('I', eipfmt);
starttime = time(0);
ARGBEGIN{
case 'a':
authenticate = 1;
break;
case 'c':
tlscert = EARGF(usage());
break;
case 'D':
Dflag++;
break;
case 'd':
debug++;
break;
case 'f': /* disallow relaying */
fflag = 1;
break;
case 'g':
gflag = 1;
break;
case 'h': /* default domain name */
dom = EARGF(usage());
break;
case 'k': /* prohibited ip address */
addbadguy(EARGF(usage()));
break;
case 'm': /* set mail command */
mailer = mailerpath(EARGF(usage()));
break;
case 'n': /* log peer ip address */
netdir = EARGF(usage());
break;
case 'p':
passwordinclear = 1;
break;
case 'r':
rflag = 1; /* verify sender's domain */
break;
case 's': /* save blocked messages */
sflag = 1;
break;
case 't':
fprint(2, "%s: the -t option is no longer supported, see -c\n",
argv0);
tlscert = "/sys/lib/ssl/smtpd-cert.pem";
break;
default:
usage();
}ARGEND;
nci = getnetconninfo(netdir, 0);
if(nci == nil)
sysfatal("can't get remote system's address: %r");
parseip(rsysip, nci->rsys);
if(mailer == nil)
mailer = mailerpath("send");
if(debug){
snprint(buf, sizeof buf, "%s/smtpdb/%ld", UPASLOG, time(0));
close(2);
if (create(buf, OWRITE | OEXCL, 0662) >= 0) {
seek(2, 0, 2);
fprint(2, "%d smtpd %s\n", getpid(), thedate());
} else
debug = 0;
}
getconf();
if (isbadguy())
exits("banned");
Binit(&bin, 0, OREAD);
if (chdir(UPASLOG) < 0)
syslog(0, "smtpd", "no %s: %r", UPASLOG);
me = sysname_read();
if(dom == 0 || dom[0] == 0)
dom = domainname_read();
if(dom == 0 || dom[0] == 0)
dom = me;
parseinit();
sayhi();
/* allow 45 minutes to parse the header */
atnotify(catchalarm, 1);
alarm(45*60*1000);
zzparse();
exits(0);
}