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/******************************************************************************
(c) 1998-1999 P.J. Caulfield patrick@tykepenguin.cix.co.uk
This program 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 of the License, or
any later version.
This program 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.
******************************************************************************
*/
////
// vmsmaild.c
// VMSmail processing daemon for Linux
////
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>
#include <signal.h>
#include <string.h>
#include <syslog.h>
#include <errno.h>
#include <unistd.h>
#include <regex.h>
#include <pwd.h>
#include <sys/socket.h>
#include <netdnet/dn.h>
#include <netdnet/dnetdb.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "configfile.h"
#include "receive.h"
// Global variables.
int verbosity = 0;
int block_mode = 0;
void usage(char *prog, FILE *f)
{
fprintf(f,"\n%s options:\n", prog);
fprintf(f," -v Verbose messages\n");
fprintf(f," -h Show this help text\n");
fprintf(f," -f Accept MAIL/FOREIGN\n");
fprintf(f," -l<type> Logging type(s:syslog, e:stderr, m:mono)\n");
fprintf(f," -U Don't check that reply user exists\n");
fprintf(f," -V Show version number\n\n");
}
int main(int argc, char *argv[])
{
pid_t pid;
char opt;
struct sockaddr_dn sockaddr;
struct optdata_dn optdata;
int insock;
int debug;
int len = sizeof(sockaddr);
int check_user=1;
char log_char = 'l'; // Default to syslog(3)
char optdata_bytes[] = { 03, 01, 00, 18, 00, 00, 00, 00,
0xA0, 02, 00, 00, 01, 00, 00, 00};
read_configfile();
// Deal with command-line arguments. Do these before the check for root
// so we can check the version number and get help without being root.
opterr = 0;
optind = 0;
while ((opt=getopt(argc,argv,"?vVdhu:Ufl:")) != EOF)
{
switch(opt)
{
case 'h':
usage(argv[0], stdout);
exit(0);
case '?':
usage(argv[0], stderr);
exit(0);
case 'v':
verbosity++;
break;
case 'f':
optdata_bytes[8] |= 0x02;
block_mode = 1;
break;
case 'd':
debug++;
break;
case 'V':
printf("\nvmsmaild from dnprogs version %s\n\n", VERSION);
exit(1);
break;
case 'U':
check_user=0;
break;
case 'u':
strcpy(config_vmsmailuser, optarg);
break;
case 'l':
if (optarg[0] != 's' &&
optarg[0] != 'm' &&
optarg[0] != 'e')
{
usage(argv[0], stderr);
exit(2);
}
log_char = optarg[0];
break;
}
}
// Initialise logging
init_daemon_logging("vmsmaild", log_char);
// See if the vmsmail user exists on this system
if (check_user)
{
if (!getpwnam(config_vmsmailuser))
{
DNETLOG((LOG_ERR, "user for vmsmail (%s) does not exist, change the user in /etc/vmsmail.conf or use the -U option to get rid of this message\n",
config_vmsmailuser));
}
}
// Wait for something to happen (or check to see if it already has)
insock = dnet_daemon(DNOBJECT_MAIL11, NULL, verbosity, !debug);
if (insock > -1)
{
dnet_accept(insock, 0, optdata_bytes, sizeof(optdata_bytes));
receive_mail(insock);
}
return 0;
}
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