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|
/*
* fetchmail.c -- main driver module for fetchmail
*
* For license terms, see the file COPYING in this directory.
*/
#include "config.h"
#include <stdio.h>
#if defined(STDC_HEADERS)
#include <stdlib.h>
#endif
#if defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
#include <fcntl.h>
#include <string.h>
#include <signal.h>
#if defined(HAVE_SYSLOG)
#include <syslog.h>
#endif
#include <pwd.h>
#ifdef __FreeBSD__
#include <grp.h>
#endif
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h> /* needed for Sun 4.1.2 */
#ifdef HAVE_SETRLIMIT
#include <sys/resource.h>
#endif /* HAVE_SETRLIMIT */
#include <sys/utsname.h>
#ifdef HAVE_NET_SOCKET_H
#include <net/socket.h>
#endif
#ifdef HAVE_GETHOSTBYNAME
#include <netdb.h>
#endif /* HAVE_GETHOSTBYNAME */
#ifdef HESIOD
#include <hesiod.h>
#endif
#include "getopt.h"
#include "fetchmail.h"
#include "socket.h"
#include "tunable.h"
#include "smtp.h"
#include "netrc.h"
#include "i18n.h"
#ifndef ENETUNREACH
#define ENETUNREACH 128 /* Interactive doesn't know this */
#endif /* ENETUNREACH */
/* prototypes for internal functions */
static int load_params(int, char **, int);
static void dump_params (struct runctl *runp, struct query *, flag implicit);
static int query_host(struct query *);
/* controls the detail level of status/progress messages written to stderr */
int outlevel; /* see the O_.* constants above */
/* miscellaneous global controls */
struct runctl run; /* global controls for this run */
flag nodetach; /* if TRUE, don't detach daemon process */
flag quitmode; /* if --quit was set */
flag check_only; /* if --probe was set */
flag versioninfo; /* emit only version info */
char *user; /* the name of the invoking user */
char *home; /* invoking user's home directory */
char *fmhome; /* fetchmail's home directory */
char *program_name; /* the name to prefix error messages with */
flag configdump; /* dump control blocks for configurator */
const char *fetchmailhost; /* either `localhost' or the host's FQDN */
#if NET_SECURITY
void *request = NULL;
int requestlen = 0;
#endif /* NET_SECURITY */
static char *lockfile; /* name of lockfile */
static int lock_acquired; /* have we acquired a lock */
static int querystatus; /* status of query */
static int successes; /* count number of successful polls */
static int activecount; /* count number of active entries */
static struct runctl cmd_run; /* global options set from command line */
static time_t parsetime; /* time of last parse */
static void terminate_run(int);
static void terminate_poll(int);
#ifdef HAVE_ON_EXIT
static void unlockit(int n, void *p)
#else
static void unlockit(void)
#endif
/* must-do actions for exit (but we can't count on being able to do malloc) */
{
if (lockfile && lock_acquired)
unlink(lockfile);
}
#if defined(__FreeBSD__) && defined(__FreeBSD_USE_KVM)
/* drop SGID kmem privileage until we need it */
static void dropprivs(void)
{
struct group *gr;
gid_t egid;
gid_t rgid;
egid = getegid();
rgid = getgid();
gr = getgrgid(egid);
if (gr && !strcmp(gr->gr_name, "kmem"))
{
extern void interface_set_gids(gid_t egid, gid_t rgid);
interface_set_gids(egid, rgid);
setegid(rgid);
}
}
#endif
#if defined(HAVE_SETLOCALE) && defined(ENABLE_NLS) && defined(HAVE_STRFTIME)
#include <time.h>
#include <locale.h>
static char *timestamp (void)
{
time_t now;
static char buf[60];
time (&now);
setlocale (LC_TIME, "");
strftime (buf, sizeof (buf), "%c", localtime(&now));
setlocale (LC_TIME, "C");
return (buf);
}
#else
#define timestamp rfc822timestamp
#endif
int main(int argc, char **argv)
{
int st, bkgd = FALSE;
int parsestatus, implicitmode = FALSE;
FILE *lockfp;
struct query *ctl;
netrc_entry *netrc_list;
char *netrc_file, *tmpbuf;
pid_t pid;
int lastsig = 0;
#if defined(__FreeBSD__) && defined(__FreeBSD_USE_KVM)
dropprivs();
#endif
envquery(argc, argv);
#ifdef ENABLE_NLS
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
#endif
/*
* Note: because we can't initialize reporting before we know whether
* syslog is supposed to be on, this message will go to stdout and
* be lost when running in background.
*/
if (outlevel >= O_VERBOSE)
{
int i;
report(stdout, _("fetchmail: invoked with"));
for (i = 0; i < argc; i++)
report(stdout, " %s", argv[i]);
report(stdout, "\n");
}
#define IDFILE_NAME ".fetchids"
run.idfile = (char *) xmalloc(strlen(fmhome)+sizeof(IDFILE_NAME)+2);
strcpy(run.idfile, fmhome);
strcat(run.idfile, "/");
strcat(run.idfile, IDFILE_NAME);
outlevel = O_NORMAL;
/*
* We used to arrange for the lockfile to be removed on exit close
* to where the lock was asserted. Now we need to do it here, because
* we might have re-executed in background with an existing lockfile
* as the result of a changed rcfile (see the code near the execvp(3)
* call near the beginning of the polling loop for details). We want
* to be sure the lockfile gets nuked on any error exit, basically.
*/
#ifdef HAVE_ATEXIT
atexit(unlockit);
#endif
#ifdef HAVE_ON_EXIT
on_exit(unlockit, (char *)NULL);
#endif
if ((parsestatus = parsecmdline(argc,argv, &cmd_run, &cmd_opts)) < 0)
exit(PS_SYNTAX);
if (versioninfo)
{
printf(_("This is fetchmail release %s"), VERSION);
#ifdef POP2_ENABLE
printf("+POP2");
#endif /* POP2_ENABLE */
#ifndef POP3_ENABLE
printf("-POP3");
#endif /* POP3_ENABLE */
#ifndef IMAP_ENABLE
printf("-IMAP");
#endif /* IMAP_ENABLE */
#ifdef GSSAPI
printf("+IMAP-GSS");
#endif /* GSSAPI */
#ifdef RPA_ENABLE
printf("+RPA");
#endif /* RPA_ENABLE */
#ifdef NTLM_ENABLE
printf("+NTLM");
#endif /* NTLM_ENABLE */
#ifdef SDPS_ENABLE
printf("+SDPS");
#endif /* SDPS_ENABLE */
#ifndef ETRN_ENABLE
printf("-ETRN");
#endif /* ETRN_ENABLE */
#ifdef SSL_ENABLE
printf("+SSL");
#endif
#if OPIE_ENABLE
printf("+OPIE");
#endif /* OPIE_ENABLE */
#if INET6_ENABLE
printf("+INET6");
#endif /* INET6_ENABLE */
#if NET_SECURITY
printf("+NETSEC");
#endif /* NET_SECURITY */
#ifdef HAVE_SOCKS
printf("+SOCKS");
#endif /* HAVE_SOCKS */
#if ENABLE_NLS
printf("+NLS");
#endif /* ENABLE_NLS */
putchar('\n');
fflush(stdout);
/* this is an attempt to help remote debugging */
system("uname -a");
}
/* avoid parsing the config file if all we're doing is killing a daemon */
if (!(quitmode && argc == 2))
implicitmode = load_params(argc, argv, optind);
#if defined(HAVE_SYSLOG)
/* logging should be set up early in case we were restarted from exec */
if (run.use_syslog)
{
#if defined(LOG_MAIL)
openlog(program_name, LOG_PID, LOG_MAIL);
#else
/* Assume BSD4.2 openlog with two arguments */
openlog(program_name, LOG_PID);
#endif
report_init(-1);
}
else
#endif
report_init((run.poll_interval == 0 || nodetach) && !run.logfile);
/* set up to do lock protocol */
#define FETCHMAIL_PIDFILE "fetchmail.pid"
if (!getuid()) {
xalloca(tmpbuf, char *,
sizeof(PID_DIR) + sizeof(FETCHMAIL_PIDFILE));
sprintf(tmpbuf, "%s/%s", PID_DIR, FETCHMAIL_PIDFILE);
} else {
xalloca(tmpbuf, char *, strlen(fmhome) + sizeof(FETCHMAIL_PIDFILE) + 2);
strcpy(tmpbuf, fmhome);
strcat(tmpbuf, "/");
if (fmhome == home)
strcat(tmpbuf, ".");
strcat(tmpbuf, FETCHMAIL_PIDFILE);
}
#undef FETCHMAIL_PIDFILE
#ifdef HAVE_SETRLIMIT
/*
* Before getting passwords, disable core dumps unless -v -d0 mode is on.
* Core dumps could otherwise contain passwords to be scavenged by a
* cracker.
*/
if (outlevel < O_VERBOSE || run.poll_interval > 0)
{
struct rlimit corelimit;
corelimit.rlim_cur = 0;
corelimit.rlim_max = 0;
setrlimit(RLIMIT_CORE, &corelimit);
}
#endif /* HAVE_SETRLIMIT */
#define NETRC_FILE ".netrc"
/* parse the ~/.netrc file (if present) for future password lookups. */
xalloca(netrc_file, char *, strlen(home) + sizeof(NETRC_FILE) + 2);
strcpy (netrc_file, home);
strcat (netrc_file, "/");
strcat (netrc_file, NETRC_FILE);
netrc_list = parse_netrc(netrc_file);
#undef NETRC_FILE
/* pick up passwords where we can */
for (ctl = querylist; ctl; ctl = ctl->next)
{
if (ctl->active && !(implicitmode && ctl->server.skip)&&!ctl->password)
{
if (ctl->server.preauthenticate == A_KERBEROS_V4 ||
ctl->server.preauthenticate == A_KERBEROS_V5 ||
ctl->server.preauthenticate == A_SSH ||
#ifdef GSSAPI
ctl->server.protocol == P_IMAP_GSS ||
#endif /* GSSAPI */
ctl->server.protocol == P_IMAP_K4)
/* Server won't care what the password is, but there
must be some non-null string here. */
ctl->password = ctl->remotename;
else
{
netrc_entry *p;
/* look up the pollname and account in the .netrc file. */
p = search_netrc(netrc_list,
ctl->server.pollname, ctl->remotename);
/* if we find a matching entry with a password, use it */
if (p && p->password)
ctl->password = xstrdup(p->password);
/* otherwise try with "via" name if there is one */
else if (ctl->server.via)
{
p = search_netrc(netrc_list,
ctl->server.via, ctl->remotename);
if (p && p->password)
ctl->password = xstrdup(p->password);
}
}
}
}
/* perhaps we just want to check options? */
if (versioninfo)
{
int havercfile = access(rcfile, 0);
printf(_("Taking options from command line%s%s\n"),
havercfile ? "" : _(" and "),
havercfile ? "" : rcfile);
if (outlevel >= O_VERBOSE)
printf(_("Lockfile at %s\n"), tmpbuf);
if (querylist == NULL)
fprintf(stderr,
_("No mailservers set up -- perhaps %s is missing?\n"),
rcfile);
else
dump_params(&run, querylist, implicitmode);
exit(0);
}
/* dump options as a Python dictionary, for configurator use */
if (configdump)
{
dump_config(&run, querylist);
exit(0);
}
/* check for another fetchmail running concurrently */
pid = -1;
if ((lockfile = (char *) malloc(strlen(tmpbuf) + 1)) == NULL)
{
report(stderr,_("fetchmail: cannot allocate memory for lock name.\n"));
exit(PS_EXCLUDE);
}
else
(void) strcpy(lockfile, tmpbuf);
if ((lockfp = fopen(lockfile, "r")) != NULL )
{
bkgd = (fscanf(lockfp,"%d %d", &pid, &st) == 2);
if (kill(pid, 0) == -1) {
fprintf(stderr,_("fetchmail: removing stale lockfile\n"));
pid = -1;
bkgd = FALSE;
unlink(lockfile);
}
fclose(lockfp); /* not checking should be safe, file mode was "r" */
}
/* if no mail servers listed and nothing in background, we're done */
if (!(quitmode && argc == 2) && pid == -1 && querylist == NULL) {
(void)fputs(_("fetchmail: no mailservers have been specified.\n"),stderr);
exit(PS_SYNTAX);
}
/* perhaps user asked us to kill the other fetchmail */
if (quitmode)
{
if (pid == -1)
{
fprintf(stderr,_("fetchmail: no other fetchmail is running\n"));
if (argc == 2)
exit(PS_EXCLUDE);
}
else if (kill(pid, SIGTERM) < 0)
{
fprintf(stderr,_("fetchmail: error killing %s fetchmail at %d; bailing out.\n"),
bkgd ? _("background") : _("foreground"), pid);
exit(PS_EXCLUDE);
}
else
{
fprintf(stderr,_("fetchmail: %s fetchmail at %d killed.\n"),
bkgd ? _("background") : _("foreground"), pid);
unlink(lockfile);
if (argc == 2)
exit(0);
else
pid = -1;
}
}
/* another fetchmail is running -- wake it up or die */
if (pid != -1)
{
if (check_only)
{
fprintf(stderr,
_("fetchmail: can't check mail while another fetchmail to same host is running.\n"));
return(PS_EXCLUDE);
}
else if (!implicitmode)
{
fprintf(stderr,
_("fetchmail: can't poll specified hosts with another fetchmail running at %d.\n"),
pid);
return(PS_EXCLUDE);
}
else if (!bkgd)
{
fprintf(stderr,
_("fetchmail: another foreground fetchmail is running at %d.\n"),
pid);
return(PS_EXCLUDE);
}
else if (argc > 1)
{
/* this test enables re-execing on a changed rcfile */
if (getpid() == pid)
lock_acquired = TRUE;
else
{
fprintf(stderr,
_("fetchmail: can't accept options while a background fetchmail is running.\n"));
return(PS_EXCLUDE);
}
}
else if (kill(pid, SIGUSR1) == 0)
{
fprintf(stderr,
_("fetchmail: background fetchmail at %d awakened.\n"),
pid);
return(0);
}
else
{
/*
* Should never happen -- possible only if a background fetchmail
* croaks after the first kill probe above but before the
* SIGUSR1/SIGHUP transmission.
*/
fprintf(stderr,
_("fetchmail: elder sibling at %d died mysteriously.\n"),
pid);
return(PS_UNDEFINED);
}
}
/* pick up interactively any passwords we need but don't have */
for (ctl = querylist; ctl; ctl = ctl->next)
{
if (ctl->active && !(implicitmode && ctl->server.skip)
&& ctl->server.protocol != P_ETRN
&& ctl->server.protocol != P_IMAP_K4
#ifdef GSSAPI
&& ctl->server.protocol != P_IMAP_GSS
#endif /* GSSAPI */
&& !ctl->password)
{
if (!isatty(0))
{
fprintf(stderr,
_("fetchmail: can't find a password for %s@%s.\n"),
ctl->remotename, ctl->server.pollname);
return(PS_AUTHFAIL);
}
else
{
char* password_prompt = _("Enter password for %s@%s: ");
xalloca(tmpbuf, char *, strlen(password_prompt) +
strlen(ctl->remotename) +
strlen(ctl->server.pollname) + 1);
(void) sprintf(tmpbuf, password_prompt,
ctl->remotename, ctl->server.pollname);
ctl->password = xstrdup((char *)fm_getpassword(tmpbuf));
}
}
}
/*
* Time to initiate the SOCKS library (this is not mandatory: it just
* registers the correct application name for logging purpose. If you
* have some problem, comment out these lines).
*/
#ifdef HAVE_SOCKS
SOCKSinit("fetchmail");
#endif /* HAVE_SOCKS */
/*
* Maybe time to go to demon mode...
*/
if (run.poll_interval)
{
if (!nodetach)
daemonize(run.logfile, terminate_run);
report(stdout, _("starting fetchmail %s daemon \n"), VERSION);
/*
* We'll set up a handler for these when we're sleeping,
* but ignore them otherwise so as not to interrupt a poll.
*/
signal(SIGUSR1, SIG_IGN);
if (run.poll_interval && !getuid())
signal(SIGHUP, SIG_IGN);
}
else if (run.logfile && access(run.logfile, F_OK) == 0)
{
freopen(run.logfile, "a", stdout);
freopen(run.logfile, "a", stderr);
}
#ifdef linux
interface_init();
#endif /* linux */
/* beyond here we don't want more than one fetchmail running per user */
umask(0077);
signal(SIGABRT, terminate_run);
signal(SIGINT, terminate_run);
signal(SIGTERM, terminate_run);
signal(SIGALRM, terminate_run);
signal(SIGPIPE, terminate_run);
signal(SIGQUIT, terminate_run);
/* here's the exclusion lock */
#ifndef O_SYNC
#define O_SYNC 0 /* use it if we have it */
#endif
if ((st = open(lockfile, O_WRONLY|O_CREAT|O_EXCL|O_SYNC, 0666)) != -1)
{
sprintf(tmpbuf,"%d", getpid());
write(st, tmpbuf, strlen(tmpbuf));
if (run.poll_interval)
{
sprintf(tmpbuf," %d", run.poll_interval);
write(st, tmpbuf, strlen(tmpbuf));
}
close(st); /* should be safe, fd was opened with O_SYNC */
lock_acquired = TRUE;
}
else
{
fprintf(stderr, _("fetchmail: lock creation failed.\n"));
return(PS_EXCLUDE);
}
/*
* Query all hosts. If there's only one, the error return will
* reflect the status of that transaction.
*/
do {
/*
* Check to see if the rcfile has been touched. If so,
* re-exec so the file will be reread. Doing it this way
* avoids all the complications of trying to deallocate the
* in-core control structures -- and the potential memory
* leaks...
*/
struct stat rcstat;
if (stat(rcfile, &rcstat) == -1)
{
if (errno != ENOENT)
report(stderr,
_("couldn't time-check %s (error %d)\n"),
rcfile, errno);
}
else if (rcstat.st_mtime > parsetime)
{
report(stdout, _("restarting fetchmail (%s changed)\n"), rcfile);
execvp("fetchmail", argv);
report(stderr, _("attempt to re-exec fetchmail failed\n"));
}
#if defined(HAVE_RES_SEARCH) && defined(USE_TCPIP_FOR_DNS)
/*
* This was an efficiency hack that backfired. The theory
* was that using TCP/IP for DNS queries would get us better
* reliability and shave off some per-UDP-packet costs.
* Unfortunately it interacted badly with diald, which effectively
* filters out DNS queries over TCP/IP for reasons having to do
* with some obscure kernel problem involving bootstrapping of
* dynamically-addressed links. I don't understand this mess
* and don't want to, so it's "See ya!" to this hack.
*/
sethostent(TRUE); /* use TCP/IP for mailserver queries */
#endif /* HAVE_RES_SEARCH */
activecount = 0;
batchcount = 0;
for (ctl = querylist; ctl; ctl = ctl->next)
if (ctl->active)
{
activecount++;
if (!(implicitmode && ctl->server.skip))
{
if (ctl->wedged)
{
report(stderr,
_("poll of %s skipped (failed authentication or too many timeouts)\n"),
ctl->server.pollname);
continue;
}
/* check skip interval first so that it counts all polls */
if (run.poll_interval && ctl->server.interval)
{
if (ctl->server.poll_count++ % ctl->server.interval)
{
if (outlevel >= O_VERBOSE)
report(stdout,
_("interval not reached, not querying %s\n"),
ctl->server.pollname);
continue;
}
}
#if (defined(linux) && !INET6_ENABLE) || defined(__FreeBSD__)
/*
* Don't do monitoring if we were woken by a signal.
* Note that interface_approve() does its own error logging.
*/
if (!interface_approve(&ctl->server, !lastsig))
continue;
#endif /* (defined(linux) && !INET6_ENABLE) || defined(__FreeBSD__) */
querystatus = query_host(ctl);
#ifdef POP3_ENABLE
/* leave the UIDL state alone if there have been any errors */
if (!check_only &&
((querystatus==PS_SUCCESS) || (querystatus==PS_NOMAIL) || (querystatus==PS_MAXFETCH)))
uid_swap_lists(ctl);
#endif /* POP3_ENABLE */
if (querystatus == PS_SUCCESS)
successes++;
else if (!check_only &&
((querystatus!=PS_NOMAIL) || (outlevel==O_DEBUG)))
switch(querystatus)
{
case PS_SUCCESS:
report(stdout,_("Query status=0 (SUCCESS)\n"));break;
case PS_NOMAIL:
report(stdout,_("Query status=1 (NOMAIL)\n")); break;
case PS_SOCKET:
report(stdout,_("Query status=2 (SOCKET)\n")); break;
case PS_AUTHFAIL:
report(stdout,_("Query status=3 (AUTHFAIL)\n"));break;
case PS_PROTOCOL:
report(stdout,_("Query status=4 (PROTOCOL)\n"));break;
case PS_SYNTAX:
report(stdout,_("Query status=5 (SYNTAX)\n")); break;
case PS_IOERR:
report(stdout,_("Query status=6 (IOERR)\n")); break;
case PS_ERROR:
report(stdout,_("Query status=7 (ERROR)\n")); break;
case PS_EXCLUDE:
report(stdout,_("Query status=8 (EXCLUDE)\n")); break;
case PS_LOCKBUSY:
report(stdout,_("Query status=9 (LOCKBUSY)\n"));break;
case PS_SMTP:
report(stdout,_("Query status=10 (SMTP)\n")); break;
case PS_DNS:
report(stdout,_("Query status=11 (DNS)\n")); break;
case PS_BSMTP:
report(stdout,_("Query status=12 (BSMTP)\n")); break;
case PS_MAXFETCH:
report(stdout,_("Query status=13 (MAXFETCH)\n"));break;
default:
report(stdout,_("Query status=%d\n"),querystatus);
break;
}
#if (defined(linux) && !INET6_ENABLE) || defined (__FreeBSD__)
if (ctl->server.monitor)
{
/*
* Allow some time for the link to quiesce. One
* second is usually sufficient, three is safe.
* Note: this delay is important - don't remove!
*/
sleep(3);
interface_note_activity(&ctl->server);
}
#endif /* (defined(linux) && !INET6_ENABLE) || defined(__FreeBSD__) */
}
}
#if defined(HAVE_RES_SEARCH) && defined(USE_TCPIP_FOR_DNS)
endhostent(); /* release TCP/IP connection to nameserver */
#endif /* HAVE_RES_SEARCH */
/* close connections cleanly */
terminate_poll(0);
/*
* OK, we've polled. Now sleep.
*/
if (run.poll_interval)
{
/*
* Because passwords can expire, it may happen that *all*
* hosts are now out of the loop due to authfail
* conditions. If this happens daemon-mode fetchmail
* should softly and silently vanish away, rather than
* spinning uselessly.
*/
int unwedged = 0;
for (ctl = querylist; ctl; ctl = ctl->next)
if (ctl->active && !(implicitmode && ctl->server.skip))
if (!ctl->wedged)
unwedged++;
if (!unwedged)
{
report(stderr, _("All connections are wedged. Exiting.\n"));
/* FIXME: someday, send notification mail */
exit(PS_AUTHFAIL);
}
if (outlevel >= O_VERBOSE)
report(stdout,
_("fetchmail: sleeping at %s\n"), timestamp());
/*
* OK, now pause util it's time for the next poll cycle.
* A nonzero return indicates we received a wakeup signal;
* unwedge all servers in case the problem has been
* manually repaired.
*/
if ((lastsig = interruptible_idle(run.poll_interval)))
{
#ifdef SYS_SIGLIST_DECLARED
report(stdout,
_("awakened by %s\n"), sys_siglist[lastsig]);
#else
report(stdout,
_("awakened by signal %d\n"), lastsig);
#endif
for (ctl = querylist; ctl; ctl = ctl->next)
ctl->wedged = FALSE;
}
if (outlevel >= O_VERBOSE)
report(stdout, _("awakened at %s\n"), timestamp());
}
} while
(run.poll_interval);
if (outlevel >= O_VERBOSE)
report(stdout, _("normal termination, status %d\n"),
successes ? PS_SUCCESS : querystatus);
terminate_run(0);
exit(successes ? PS_SUCCESS : querystatus);
}
static void list_merge(struct idlist **dstl, struct idlist **srcl, int force)
{
/*
* If force is off, modify dstl fields only when they're empty (treat srcl
* as defaults). If force is on, modify each dstl field whenever scrcl
* is nonempty (treat srcl as an override).
*/
if (force ? !!*srcl : !*dstl)
{
struct idlist *cpl = copy_str_list(*srcl);
append_str_list(dstl, &cpl);
}
}
static void optmerge(struct query *h2, struct query *h1, int force)
/* merge two options records */
{
list_merge(&h2->server.localdomains, &h1->server.localdomains, force);
list_merge(&h2->localnames, &h1->localnames, force);
list_merge(&h2->mailboxes, &h1->mailboxes, force);
list_merge(&h2->smtphunt, &h1->smtphunt, force);
list_merge(&h2->antispam, &h1->antispam, force);
#define FLAG_MERGE(fld) if (force ? !!h1->fld : !h2->fld) h2->fld = h1->fld
FLAG_MERGE(server.via);
FLAG_MERGE(server.protocol);
#if INET6_ENABLE
FLAG_MERGE(server.service);
FLAG_MERGE(server.netsec);
#else /* INET6_ENABLE */
FLAG_MERGE(server.port);
#endif /* INET6_ENABLE */
FLAG_MERGE(server.interval);
FLAG_MERGE(server.preauthenticate);
FLAG_MERGE(server.timeout);
FLAG_MERGE(server.envelope);
FLAG_MERGE(server.envskip);
FLAG_MERGE(server.qvirtual);
FLAG_MERGE(server.skip);
FLAG_MERGE(server.dns);
FLAG_MERGE(server.checkalias);
FLAG_MERGE(server.uidl);
FLAG_MERGE(server.principal);
#if defined(linux) || defined(__FreeBSD__)
FLAG_MERGE(server.interface);
FLAG_MERGE(server.monitor);
FLAG_MERGE(server.interface_pair);
#endif /* linux || defined(__FreeBSD__) */
FLAG_MERGE(server.plugin);
FLAG_MERGE(server.plugout);
FLAG_MERGE(wildcard);
FLAG_MERGE(remotename);
FLAG_MERGE(password);
FLAG_MERGE(mda);
FLAG_MERGE(bsmtp);
FLAG_MERGE(listener);
FLAG_MERGE(smtpaddress);
FLAG_MERGE(smtpname);
FLAG_MERGE(preconnect);
FLAG_MERGE(postconnect);
FLAG_MERGE(keep);
FLAG_MERGE(flush);
FLAG_MERGE(fetchall);
FLAG_MERGE(rewrite);
FLAG_MERGE(forcecr);
FLAG_MERGE(stripcr);
FLAG_MERGE(pass8bits);
FLAG_MERGE(dropstatus);
FLAG_MERGE(dropdelivered);
FLAG_MERGE(mimedecode);
FLAG_MERGE(idle);
FLAG_MERGE(limit);
FLAG_MERGE(warnings);
FLAG_MERGE(fetchlimit);
FLAG_MERGE(batchlimit);
#ifdef SSL_ENABLE
FLAG_MERGE(use_ssl);
FLAG_MERGE(sslkey);
FLAG_MERGE(sslcert);
#endif
FLAG_MERGE(expunge);
FLAG_MERGE(properties);
#undef FLAG_MERGE
}
static int load_params(int argc, char **argv, int optind)
{
int implicitmode, st;
struct passwd *pw;
struct query def_opts, *ctl;
struct stat rcstat;
run.bouncemail = TRUE;
memset(&def_opts, '\0', sizeof(struct query));
def_opts.smtp_socket = -1;
def_opts.smtpaddress = (char *)0;
def_opts.smtpname = (char *)0;
#define ANTISPAM(n) save_str(&def_opts.antispam, STRING_DUMMY, 0)->val.status.num = (n)
ANTISPAM(571); /* sendmail */
ANTISPAM(550); /* old exim */
ANTISPAM(501); /* new exim */
ANTISPAM(554); /* Postfix */
#undef ANTISPAM
def_opts.server.protocol = P_AUTO;
def_opts.server.timeout = CLIENT_TIMEOUT;
def_opts.warnings = WARNING_INTERVAL;
def_opts.remotename = user;
def_opts.listener = SMTP_MODE;
/* note the parse time, so we can pick up on modifications */
parsetime = 0; /* foil compiler warnings */
if (stat(rcfile, &rcstat) != -1)
parsetime = rcstat.st_mtime;
else if (errno != ENOENT)
report(stderr, _("couldn't time-check the run-control file\n"));
/* this builds the host list */
if ((st = prc_parse_file(rcfile, !versioninfo)) != 0)
/*
* FIXME: someday, send notification mail here if backgrounded.
* Right now, that can happen if the user changes the rcfile
* while the fetchmail is running in background. Do similarly
* for the other exit() calls in this function.
*/
exit(st);
if ((implicitmode = (optind >= argc)))
{
for (ctl = querylist; ctl; ctl = ctl->next)
ctl->active = TRUE;
}
else
for (; optind < argc; optind++)
{
flag predeclared = FALSE;
/*
* If hostname corresponds to a host known from the rc file,
* simply declare it active. Otherwise synthesize a host
* record from command line and defaults
*/
for (ctl = querylist; ctl; ctl = ctl->next)
if (!strcmp(ctl->server.pollname, argv[optind])
|| str_in_list(&ctl->server.akalist, argv[optind], TRUE))
{
/* Is this correct? */
if (predeclared && outlevel == O_VERBOSE)
fprintf(stderr,_("Warning: multiple mentions of host %s in config file\n"),argv[optind]);
ctl->active = TRUE;
predeclared = TRUE;
}
if (!predeclared)
{
/*
* Allocate and link record without copying in
* command-line args; we'll do that with the optmerge
* call later on.
*/
ctl = hostalloc((struct query *)NULL);
ctl->server.via =
ctl->server.pollname = xstrdup(argv[optind]);
ctl->active = TRUE;
ctl->server.lead_server = (struct hostdata *)NULL;
}
}
/*
* If there's a defaults record, merge it and lose it.
*/
if (querylist && strcmp(querylist->server.pollname, "defaults") == 0)
{
for (ctl = querylist->next; ctl; ctl = ctl->next)
optmerge(ctl, querylist, FALSE);
querylist = querylist->next;
}
/* don't allow a defaults record after the first */
for (ctl = querylist; ctl; ctl = ctl->next)
if (ctl != querylist && strcmp(ctl->server.pollname, "defaults") == 0)
exit(PS_SYNTAX);
/* use localhost if we never fetch the FQDN of this host */
fetchmailhost = "localhost";
/* here's where we override globals */
if (cmd_run.logfile)
run.logfile = cmd_run.logfile;
if (cmd_run.idfile)
run.idfile = cmd_run.idfile;
/* do this before the keep/fetchall test below, otherwise -d0 may fail */
if (cmd_run.poll_interval >= 0)
run.poll_interval = cmd_run.poll_interval;
if (cmd_run.invisible)
run.invisible = cmd_run.invisible;
if (cmd_run.showdots)
run.showdots = cmd_run.showdots;
if (cmd_run.use_syslog)
run.use_syslog = (cmd_run.use_syslog == FLAG_TRUE);
if (cmd_run.postmaster)
run.postmaster = cmd_run.postmaster;
if (cmd_run.bouncemail)
run.bouncemail = cmd_run.bouncemail;
/* check and daemon options are not compatible */
if (check_only && run.poll_interval)
run.poll_interval = 0;
/* merge in wired defaults, do sanity checks and prepare internal fields */
for (ctl = querylist; ctl; ctl = ctl->next)
{
ctl->wedged = FALSE;
if (configdump || (ctl->active && !(implicitmode && ctl->server.skip)))
{
/* merge in defaults */
optmerge(ctl, &def_opts, FALSE);
/* force command-line options */
optmerge(ctl, &cmd_opts, TRUE);
/* this code enables flags to be turned off */
#define DEFAULT(flag, dflt) if (flag == FLAG_TRUE)\
flag = TRUE;\
else if (flag == FLAG_FALSE)\
flag = FALSE;\
else\
flag = (dflt)
DEFAULT(ctl->keep, FALSE);
DEFAULT(ctl->fetchall, FALSE);
DEFAULT(ctl->flush, FALSE);
DEFAULT(ctl->rewrite, TRUE);
DEFAULT(ctl->stripcr, (ctl->mda != (char *)NULL));
DEFAULT(ctl->forcecr, FALSE);
DEFAULT(ctl->pass8bits, FALSE);
DEFAULT(ctl->dropstatus, FALSE);
DEFAULT(ctl->dropdelivered, FALSE);
DEFAULT(ctl->mimedecode, FALSE);
DEFAULT(ctl->idle, FALSE);
DEFAULT(ctl->server.dns, TRUE);
DEFAULT(ctl->server.uidl, FALSE);
#ifdef SSL_ENABLE
DEFAULT(ctl->use_ssl, FALSE);
#endif
DEFAULT(ctl->server.checkalias, FALSE);
#undef DEFAULT
/*
* DNS support is required for some protocols. We used to
* do this unconditionally, but it made fetchmail excessively
* vulnerable to misconfigured DNS setups.
*
* If we're using ETRN, the smtp hunt list is the list of
* systems we're polling on behalf of; these have to be
* fully-qualified domain names. The default for this list
* should be the FQDN of localhost.
*
* If we're using Kerberos for authentication, we need
* the FQDN in order to generate capability keys.
*/
if (ctl->server.protocol == P_ETRN
|| ctl->server.preauthenticate == A_KERBEROS_V4
|| ctl->server.preauthenticate == A_KERBEROS_V5)
if (strcmp(fetchmailhost, "localhost") == 0)
fetchmailhost = host_fqdn();
/*
* Make sure we have a nonempty host list to forward to.
*/
if (!ctl->smtphunt)
save_str(&ctl->smtphunt, fetchmailhost, FALSE);
/* if `user' doesn't name a real local user, try to run as root */
if ((pw = getpwnam(user)) == (struct passwd *)NULL)
ctl->uid = 0;
else
ctl->uid = pw->pw_uid; /* for local delivery via MDA */
if (!ctl->localnames) /* for local delivery via SMTP */
save_str_pair(&ctl->localnames, user, NULL);
#if !defined(HAVE_GETHOSTBYNAME) || !defined(HAVE_RES_SEARCH)
/* can't handle multidrop mailboxes unless we can do DNS lookups */
if (ctl->localnames && ctl->localnames->next && ctl->server.dns)
{
ctl->server.dns = FALSE;
report(stderr, _("fetchmail: warning: no DNS available to check multidrop fetches from %s\n"), ctl->server.pollname);
}
#endif /* !HAVE_GETHOSTBYNAME || !HAVE_RES_SEARCH */
/*
*
* Compute the true name of the mailserver host.
* There are two clashing cases here:
*
* (1) The poll name is a label, possibly on one of several
* poll configurations for the same host. In this case
* the `via' option will be present and give the true name.
*
* (2) The poll name is the true one, the via name is
* localhost. This is going to be typical for ssh-using
* configurations.
*
* We're going to assume the via name is true unless it's
* localhost.
*/
if (ctl->server.via && strcmp(ctl->server.via, "localhost"))
ctl->server.queryname = xstrdup(ctl->server.via);
else
ctl->server.queryname = xstrdup(ctl->server.pollname);
#ifdef HESIOD
/* If either the pollname or vianame are "hesiod" we want to
lookup the user's hesiod pobox host */
if (!strcasecmp(ctl->server.queryname, "hesiod")) {
struct hes_postoffice *hes_p;
hes_p = hes_getmailhost(ctl->remotename);
if (hes_p != NULL && strcmp(hes_p->po_type, "POP") == 0) {
free(ctl->server.queryname);
ctl->server.queryname = xstrdup(hes_p->po_host);
if (ctl->server.via)
free(ctl->server.via);
ctl->server.via = xstrdup(hes_p->po_host);
} else {
report(stderr,
_("couldn't find HESIOD pobox for %s\n"),
ctl->remotename);
}
}
#endif /* HESIOD */
/*
* We may have to canonicalize the server truename for later use.
* Do this just once for each lead server, if necessary, in order
* to minimize DNS round trips.
*/
if (ctl->server.lead_server)
{
char *leadname = ctl->server.lead_server->truename;
/* prevent core dump from ill-formed or duplicate entry */
if (!leadname)
{
report(stderr, _("Lead server has no name.\n"));
exit(PS_SYNTAX);
}
ctl->server.truename = xstrdup(leadname);
}
#ifdef HAVE_GETHOSTBYNAME
else if (!configdump)
{
if (ctl->server.preauthenticate==A_KERBEROS_V4 ||
ctl->server.preauthenticate==A_KERBEROS_V5 ||
(ctl->server.dns && MULTIDROP(ctl)))
{
struct hostent *namerec;
/* compute the canonical name of the host */
errno = 0;
namerec = gethostbyname(ctl->server.queryname);
if (namerec == (struct hostent *)NULL)
{
report(stderr,
_("couldn't find canonical DNS name of %s\n"),
ctl->server.pollname);
ctl->server.truename = xstrdup(ctl->server.queryname);
ctl->server.trueaddr = NULL;
}
else
ctl->server.truename=xstrdup((char *)namerec->h_name);
}
#endif /* HAVE_GETHOSTBYNAME */
else {
#ifdef HAVE_GETHOSTBYNAME
struct hostent *namerec;
/* <fetchmail@mail.julianhaight.com>
Get the host's IP, so we can report it like this:
Received: from hostname [10.0.0.1]
do we actually need to gethostbyname to find the IP?
it seems like it would be faster to do this later, when
we are actually resolving the hostname for a connection,
but I ain't that smart, so I don't know where to make
the change later..
*/
errno = 0;
namerec = gethostbyname(ctl->server.queryname);
if (namerec == (struct hostent *)NULL)
{
report(stderr,
_("couldn't find canonical DNS name of %s\n"),
ctl->server.pollname);
exit(PS_DNS);
}
else {
ctl->server.truename=xstrdup((char *)namerec->h_name);
ctl->server.trueaddr=xmalloc(namerec->h_length);
memcpy(ctl->server.trueaddr,
namerec->h_addr_list[0],
namerec->h_length);
}
#else
ctl->server.truename = xstrdup(ctl->server.queryname);
#endif /* HAVE_GETHOSTBYNAME */
}
}
/* if no folders were specified, set up the null one as default */
if (!ctl->mailboxes)
save_str(&ctl->mailboxes, (char *)NULL, 0);
/* maybe user overrode timeout on command line? */
if (ctl->server.timeout == -1)
ctl->server.timeout = CLIENT_TIMEOUT;
#if !INET6_ENABLE
/* sanity checks */
if (ctl->server.port < 0)
{
(void) fprintf(stderr,
_("%s configuration invalid, port number cannot be negative\n"),
ctl->server.pollname);
exit(PS_SYNTAX);
}
if (ctl->server.protocol == P_RPOP && ctl->server.port >= 1024)
{
(void) fprintf(stderr,
_("%s configuration invalid, RPOP requires a privileged port\n"),
ctl->server.pollname);
exit(PS_SYNTAX);
}
if (ctl->listener == LMTP_MODE)
{
struct idlist *idp;
for (idp = ctl->smtphunt; idp; idp = idp->next)
{
char *cp;
if (!(cp = strrchr(idp->id, '/')) ||
(atoi(++cp) == SMTP_PORT))
{
(void) fprintf(stderr,
_("%s configuration invalid, LMTP can't use default SMTP port\n"),
ctl->server.pollname);
exit(PS_SYNTAX);
}
}
}
#endif /* !INET6_ENABLE */
/*
* "I beg to you, have mercy on the week minds like myself."
* wrote Pehr Anderson. Your petition is granted.
*/
if (ctl->fetchall && ctl->keep && run.poll_interval && !nodetach)
{
(void) fprintf(stderr,
_("Both fetchall and keep on in daemon mode is a mistake!\n"));
exit(PS_SYNTAX);
}
}
}
#ifdef POP3_ENABLE
/* initialize UID handling */
if (!versioninfo && (st = prc_filecheck(run.idfile, !versioninfo)) != 0)
exit(st);
else
initialize_saved_lists(querylist, run.idfile);
#endif /* POP3_ENABLE */
/*
* If the user didn't set a last-resort user to get misaddressed
* multidrop mail, set an appropriate default here.
*/
if (!run.postmaster)
{
if (getuid()) /* ordinary user */
run.postmaster = user;
else /* root */
run.postmaster = "postmaster";
}
return(implicitmode);
}
static void terminate_poll(int sig)
/* to be executed at the end of a poll cycle */
{
/*
* Close all SMTP delivery sockets. For optimum performance
* we'd like to hold them open til end of run, but (1) this
* loses if our poll interval is longer than the MTA's inactivity
* timeout, and (2) some MTAs (like smail) don't deliver after
* each message, but rather queue up mail and wait to actually
* deliver it until the input socket is closed.
*
* Sending SMTP QUIT on signal is theoretically nice, but led to a
* subtle bug. If fetchmail was terminated by signal while it was
* shipping message text, it would hang forever waiting for a
* command acknowledge. In theory we could enable the QUIT
* only outside of the message send. In practice, we don't
* care. All mailservers hang up on a dropped TCP/IP connection
* anyway.
*/
if (sig != 0)
report(stdout, _("terminated with signal %d\n"), sig);
else
{
struct query *ctl;
/* terminate all SMTP connections cleanly */
for (ctl = querylist; ctl; ctl = ctl->next)
if (ctl->smtp_socket != -1)
{
SMTP_quit(ctl->smtp_socket);
SockClose(ctl->smtp_socket);
ctl->smtp_socket = -1;
}
}
#ifdef POP3_ENABLE
/*
* Update UID information at end of each poll, rather than at end
* of run, because that way we don't lose all UIDL information since
* the beginning of time if fetchmail crashes.
*/
if (!check_only)
write_saved_lists(querylist, run.idfile);
#endif /* POP3_ENABLE */
}
static void terminate_run(int sig)
/* to be executed on normal or signal-induced termination */
{
struct query *ctl;
terminate_poll(sig);
/*
* Craig Metz, the RFC1938 one-time-password guy, points out:
* "Remember that most kernels don't zero pages before handing them to the
* next process and many kernels share pages between user and kernel space.
* You'd be very surprised what you can find from a short program to do a
* malloc() and then dump the contents of the pages you got. By zeroing
* the secrets at end of run (earlier if you can), you make sure the next
* guy can't get the password/pass phrase."
*
* Right you are, Craig!
*/
for (ctl = querylist; ctl; ctl = ctl->next)
if (ctl->password)
memset(ctl->password, '\0', strlen(ctl->password));
#if !defined(HAVE_ATEXIT) && !defined(HAVE_ON_EXIT)
unlockit();
#endif
if (activecount == 0)
exit(PS_NOMAIL);
else
exit(successes ? PS_SUCCESS : querystatus);
}
/*
* Sequence of protocols to try when autoprobing, most capable to least.
*/
static const int autoprobe[] =
{
#ifdef IMAP_ENABLE
P_IMAP,
#endif /* IMAP_ENABLE */
#ifdef POP3_ENABLE
P_POP3,
#endif /* POP3_ENABLE */
#ifdef POP2_ENABLE
P_POP2
#endif /* POP2_ENABLE */
};
static int query_host(struct query *ctl)
/* perform fetch transaction with single host */
{
int i, st;
/*
* If we're syslogging the progress messages are automatically timestamped.
* Force timestamping if we're going to a logfile.
*/
if (outlevel >= O_VERBOSE || (run.logfile && outlevel > O_SILENT))
{
report(stdout, _("%s querying %s (protocol %s) at %s\n"),
VERSION,
ctl->server.pollname,
showproto(ctl->server.protocol),
timestamp());
}
switch (ctl->server.protocol) {
case P_AUTO:
for (i = 0; i < sizeof(autoprobe)/sizeof(autoprobe[0]); i++)
{
ctl->server.protocol = autoprobe[i];
if ((st = query_host(ctl)) == PS_SUCCESS || st == PS_NOMAIL || st == PS_AUTHFAIL || st == PS_LOCKBUSY || st == PS_SMTP)
break;
}
ctl->server.protocol = P_AUTO;
return(st);
case P_POP2:
#ifdef POP2_ENABLE
return(doPOP2(ctl));
#else
report(stderr, _("POP2 support is not configured.\n"));
return(PS_PROTOCOL);
#endif /* POP2_ENABLE */
break;
case P_POP3:
case P_APOP:
case P_RPOP:
#ifdef POP3_ENABLE
return(doPOP3(ctl));
#else
report(stderr, _("POP3 support is not configured.\n"));
return(PS_PROTOCOL);
#endif /* POP3_ENABLE */
break;
case P_IMAP:
case P_IMAP_K4:
case P_IMAP_CRAM_MD5:
case P_IMAP_LOGIN:
#ifdef GSSAPI
case P_IMAP_GSS:
#endif /* GSSAPI */
#ifdef IMAP_ENABLE
return(doIMAP(ctl));
#else
report(stderr, _("IMAP support is not configured.\n"));
return(PS_PROTOCOL);
#endif /* IMAP_ENABLE */
case P_ETRN:
#ifndef ETRN_ENABLE
report(stderr, _("ETRN support is not configured.\n"));
return(PS_PROTOCOL);
#else
#ifdef HAVE_GETHOSTBYNAME
return(doETRN(ctl));
#else
report(stderr, _("Cannot support ETRN without gethostbyname(2).\n"));
return(PS_PROTOCOL);
#endif /* HAVE_GETHOSTBYNAME */
#endif /* ETRN_ENABLE */
default:
report(stderr, _("unsupported protocol selected.\n"));
return(PS_PROTOCOL);
}
}
static void dump_params (struct runctl *runp,
struct query *querylist, flag implicit)
/* display query parameters in English */
{
struct query *ctl;
if (runp->poll_interval)
printf(_("Poll interval is %d seconds\n"), runp->poll_interval);
if (runp->logfile)
printf(_("Logfile is %s\n"), runp->logfile);
if (strcmp(runp->idfile, IDFILE_NAME))
printf(_("Idfile is %s\n"), runp->idfile);
#if defined(HAVE_SYSLOG)
if (runp->use_syslog)
printf(_("Progress messages will be logged via syslog\n"));
#endif
if (runp->invisible)
printf(_("Fetchmail will masquerade and will not generate Received\n"));
if (runp->showdots)
printf(_("Fetchmail will show progress dots even in logfiles.\n"));
if (runp->postmaster)
printf(_("Fetchmail will forward misaddressed multidrop messages to %s.\n"),
runp->postmaster);
if (!runp->bouncemail)
printf(_("Fetchmail will direct error mail to the postmaster.\n"));
else if (outlevel >= O_VERBOSE)
printf(_("Fetchmail will direct error mail to the sender.\n"));
for (ctl = querylist; ctl; ctl = ctl->next)
{
if (!ctl->active || (implicit && ctl->server.skip))
continue;
printf(_("Options for retrieving from %s@%s:\n"),
ctl->remotename, visbuf(ctl->server.pollname));
if (ctl->server.via && (ctl->server.protocol != P_ETRN))
printf(_(" Mail will be retrieved via %s\n"), ctl->server.via);
if (ctl->server.interval)
printf(_(" Poll of this server will occur every %d intervals.\n"),
ctl->server.interval);
if (ctl->server.truename)
printf(_(" True name of server is %s.\n"), ctl->server.truename);
if (ctl->server.skip || outlevel >= O_VERBOSE)
printf(_(" This host %s be queried when no host is specified.\n"),
ctl->server.skip ? _("will not") : _("will"));
/*
* Don't poll for password when there is one or when using the ETRN
* or IMAP-GSS protocol
*/
/* ETRN, IMAP_GSS, and IMAP_K4 do not need a password, so skip this */
if ( (ctl->server.protocol != P_ETRN)
#ifdef GSSAPI
&& (ctl->server.protocol != P_IMAP_GSS)
#endif /* GSSAPI */
&& (ctl->server.protocol != P_IMAP_K4) ) {
if (!ctl->password)
printf(_(" Password will be prompted for.\n"));
else if (outlevel >= O_VERBOSE)
{
if (ctl->server.protocol == P_APOP)
printf(_(" APOP secret = \"%s\".\n"),
visbuf(ctl->password));
else if (ctl->server.protocol == P_RPOP)
printf(_(" RPOP id = \"%s\".\n"),
visbuf(ctl->password));
else
printf(_(" Password = \"%s\".\n"),
visbuf(ctl->password));
}
}
if (ctl->server.protocol == P_POP3
#if INET6_ENABLE
&& ctl->server.service && !strcmp(ctl->server.service, KPOP_PORT)
#else /* INET6_ENABLE */
&& ctl->server.port == KPOP_PORT
#endif /* INET6_ENABLE */
&& (ctl->server.preauthenticate == A_KERBEROS_V4 ||
ctl->server.preauthenticate == A_KERBEROS_V5))
printf(_(" Protocol is KPOP with Kerberos %s authentication"),
ctl->server.preauthenticate == A_KERBEROS_V5 ? "V" : "IV");
else
printf(_(" Protocol is %s"), showproto(ctl->server.protocol));
#if INET6_ENABLE
if (ctl->server.service)
printf(_(" (using service %s)"), ctl->server.service);
if (ctl->server.netsec)
printf(_(" (using network security options %s)"), ctl->server.netsec);
#else /* INET6_ENABLE */
if (ctl->server.port)
printf(_(" (using port %d)"), ctl->server.port);
#endif /* INET6_ENABLE */
else if (outlevel >= O_VERBOSE)
printf(_(" (using default port)"));
if (ctl->server.uidl && (ctl->server.protocol != P_ETRN))
printf(_(" (forcing UIDL use)"));
putchar('.');
putchar('\n');
if (ctl->server.preauthenticate == A_KERBEROS_V4)
printf(_(" Kerberos V4 preauthentication enabled.\n"));
else if (ctl->server.preauthenticate == A_KERBEROS_V5)
printf(_(" Kerberos V5 preauthentication enabled.\n"));
else if (ctl->server.preauthenticate == A_SSH)
printf(_(" End-to-end encryption assumed.\n"));
if (ctl->server.principal != (char *) NULL) {
printf(_(" Mail service principal is: %s\n"), ctl->server.principal);
}
#ifdef SSL_ENABLE
if (ctl->use_ssl)
printf(" SSL encrypted sessions enabled.\n");
#endif
if (ctl->server.timeout > 0)
printf(_(" Server nonresponse timeout is %d seconds"), ctl->server.timeout);
if (ctl->server.timeout == CLIENT_TIMEOUT)
printf(_(" (default).\n"));
else
printf(".\n");
if (ctl->server.protocol != P_ETRN) {
if (!ctl->mailboxes->id)
printf(_(" Default mailbox selected.\n"));
else
{
struct idlist *idp;
printf(_(" Selected mailboxes are:"));
for (idp = ctl->mailboxes; idp; idp = idp->next)
printf(" %s", idp->id);
printf("\n");
}
printf(_(" %s messages will be retrieved (--all %s).\n"),
ctl->fetchall ? _("All") : _("Only new"),
ctl->fetchall ? "on" : "off");
printf(_(" Fetched messages %s be kept on the server (--keep %s).\n"),
ctl->keep ? _("will") : _("will not"),
ctl->keep ? "on" : "off");
printf(_(" Old messages %s be flushed before message retrieval (--flush %s).\n"),
ctl->flush ? _("will") : _("will not"),
ctl->flush ? "on" : "off");
printf(_(" Rewrite of server-local addresses is %s (--norewrite %s).\n"),
ctl->rewrite ? _("enabled") : _("disabled"),
ctl->rewrite ? "off" : "on");
printf(_(" Carriage-return stripping is %s (stripcr %s).\n"),
ctl->stripcr ? _("enabled") : _("disabled"),
ctl->stripcr ? "on" : "off");
printf(_(" Carriage-return forcing is %s (forcecr %s).\n"),
ctl->forcecr ? _("enabled") : _("disabled"),
ctl->forcecr ? "on" : "off");
printf(_(" Interpretation of Content-Transfer-Encoding is %s (pass8bits %s).\n"),
ctl->pass8bits ? _("disabled") : _("enabled"),
ctl->pass8bits ? "on" : "off");
printf(_(" MIME decoding is %s (mimedecode %s).\n"),
ctl->mimedecode ? _("enabled") : _("disabled"),
ctl->mimedecode ? "on" : "off");
printf(_(" Idle after poll is %s (idle %s).\n"),
ctl->idle ? _("enabled") : _("disabled"),
ctl->idle ? "on" : "off");
printf(_(" Nonempty Status lines will be %s (dropstatus %s)\n"),
ctl->dropstatus ? _("discarded") : _("kept"),
ctl->dropstatus ? "on" : "off");
printf(_(" Delivered-To lines will be %s (dropdelivered %s)\n"),
ctl->dropdelivered ? _("discarded") : _("kept"),
ctl->dropdelivered ? "on" : "off");
if (NUM_NONZERO(ctl->limit))
{
if (NUM_NONZERO(ctl->limit))
printf(_(" Message size limit is %d octets (--limit %d).\n"),
ctl->limit, ctl->limit);
else if (outlevel >= O_VERBOSE)
printf(_(" No message size limit (--limit 0).\n"));
if (run.poll_interval > 0)
printf(_(" Message size warning interval is %d seconds (--warnings %d).\n"),
ctl->warnings, ctl->warnings);
else if (outlevel >= O_VERBOSE)
printf(_(" Size warnings on every poll (--warnings 0).\n"));
}
if (NUM_NONZERO(ctl->fetchlimit))
printf(_(" Received-message limit is %d (--fetchlimit %d).\n"),
ctl->fetchlimit, ctl->fetchlimit);
else if (outlevel >= O_VERBOSE)
printf(_(" No received-message limit (--fetchlimit 0).\n"));
if (NUM_NONZERO(ctl->batchlimit))
printf(_(" SMTP message batch limit is %d.\n"), ctl->batchlimit);
else if (outlevel >= O_VERBOSE)
printf(_(" No SMTP message batch limit (--batchlimit 0).\n"));
if (ctl->server.protocol != P_ETRN)
{
if (NUM_NONZERO(ctl->expunge))
printf(_(" Deletion interval between expunges forced to %d (--expunge %d).\n"), ctl->expunge, ctl->expunge);
else if (outlevel >= O_VERBOSE)
printf(_(" No forced expunges (--expunge 0).\n"));
}
}
if (ctl->bsmtp)
printf(_(" Messages will be appended to %s as BSMTP\n"), visbuf(ctl->bsmtp));
else if (ctl->mda && (ctl->server.protocol != P_ETRN))
printf(_(" Messages will be delivered with \"%s\".\n"), visbuf(ctl->mda));
else
{
struct idlist *idp;
printf(_(" Messages will be %cMTP-forwarded to:"), ctl->listener);
for (idp = ctl->smtphunt; idp; idp = idp->next)
{
printf(" %s", idp->id);
if (!idp->val.status.mark)
printf(_(" (default)"));
}
printf("\n");
if (ctl->smtpaddress)
printf(_(" Host part of MAIL FROM line will be %s\n"),
ctl->smtpaddress);
if (ctl->smtpname)
printf(_(" Address to be put in RCPT TO lines shipped to SMTP will be %s\n"),
ctl->smtpname);
}
if (ctl->server.protocol != P_ETRN)
{
if (ctl->antispam != (struct idlist *)NULL)
{
struct idlist *idp;
printf(_(" Recognized listener spam block responses are:"));
for (idp = ctl->antispam; idp; idp = idp->next)
printf(" %d", idp->val.status.num);
printf("\n");
}
else if (outlevel >= O_VERBOSE)
printf(_(" Spam-blocking disabled\n"));
}
if (ctl->preconnect)
printf(_(" Server connection will be brought up with \"%s\".\n"),
visbuf(ctl->preconnect));
else if (outlevel >= O_VERBOSE)
printf(_(" No pre-connection command.\n"));
if (ctl->postconnect)
printf(_(" Server connection will be taken down with \"%s\".\n"),
visbuf(ctl->postconnect));
else if (outlevel >= O_VERBOSE)
printf(_(" No post-connection command.\n"));
if (ctl->server.protocol != P_ETRN) {
if (!ctl->localnames)
printf(_(" No localnames declared for this host.\n"));
else
{
struct idlist *idp;
int count = 0;
for (idp = ctl->localnames; idp; idp = idp->next)
++count;
if (count > 1 || ctl->wildcard)
printf(_(" Multi-drop mode: "));
else
printf(_(" Single-drop mode: "));
printf(_("%d local name(s) recognized.\n"), count);
if (outlevel >= O_VERBOSE)
{
for (idp = ctl->localnames; idp; idp = idp->next)
if (idp->val.id2)
printf("\t%s -> %s\n", idp->id, idp->val.id2);
else
printf("\t%s\n", idp->id);
if (ctl->wildcard)
fputs("\t*\n", stdout);
}
if (count > 1 || ctl->wildcard)
{
printf(_(" DNS lookup for multidrop addresses is %s.\n"),
ctl->server.dns ? _("enabled") : _("disabled"));
if (ctl->server.dns)
{
printf(_(" Server aliases will be compared with multidrop addresses by "));
if (ctl->server.checkalias)
printf(_("IP address.\n"));
else
printf(_("name.\n"));
}
if (ctl->server.envelope == STRING_DISABLED)
printf(_(" Envelope-address routing is disabled\n"));
else
{
printf(_(" Envelope header is assumed to be: %s\n"),
ctl->server.envelope ? ctl->server.envelope:_("Received"));
if (ctl->server.envskip > 1 || outlevel >= O_VERBOSE)
printf(_(" Number of envelope header to be parsed: %d\n"),
ctl->server.envskip);
if (ctl->server.qvirtual)
printf(_(" Prefix %s will be removed from user id\n"),
ctl->server.qvirtual);
else if (outlevel >= O_VERBOSE)
printf(_(" No prefix stripping\n"));
}
if (ctl->server.akalist)
{
struct idlist *idp;
printf(_(" Predeclared mailserver aliases:"));
for (idp = ctl->server.akalist; idp; idp = idp->next)
printf(" %s", idp->id);
putchar('\n');
}
if (ctl->server.localdomains)
{
struct idlist *idp;
printf(_(" Local domains:"));
for (idp = ctl->server.localdomains; idp; idp = idp->next)
printf(" %s", idp->id);
putchar('\n');
}
}
}
}
#if defined(linux) || defined(__FreeBSD__)
if (ctl->server.interface)
printf(_(" Connection must be through interface %s.\n"), ctl->server.interface);
else if (outlevel >= O_VERBOSE)
printf(_(" No interface requirement specified.\n"));
if (ctl->server.monitor)
printf(_(" Polling loop will monitor %s.\n"), ctl->server.monitor);
else if (outlevel >= O_VERBOSE)
printf(_(" No monitor interface specified.\n"));
#endif
if (ctl->server.plugin)
printf(_(" Server connections will be made via plugin %s (--plugin %s).\n"), ctl->server.plugin, ctl->server.plugin);
else if (outlevel >= O_VERBOSE)
printf(_(" No plugin command specified.\n"));
if (ctl->server.plugout)
printf(_(" Listener connections will be made via plugout %s (--plugout %s).\n"), ctl->server.plugout, ctl->server.plugout);
else if (outlevel >= O_VERBOSE)
printf(_(" No plugout command specified.\n"));
if (ctl->server.protocol > P_POP2 && (ctl->server.protocol != P_ETRN))
{
if (!ctl->oldsaved)
printf(_(" No UIDs saved from this host.\n"));
else
{
struct idlist *idp;
int count = 0;
for (idp = ctl->oldsaved; idp; idp = idp->next)
++count;
printf(_(" %d UIDs saved.\n"), count);
if (outlevel >= O_VERBOSE)
for (idp = ctl->oldsaved; idp; idp = idp->next)
printf("\t%s\n", idp->id);
}
}
if (ctl->properties)
printf(_(" Pass-through properties \"%s\".\n"),
visbuf(ctl->properties));
}
}
/* fetchmail.c ends here */
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