/* * fetchmail.c -- main driver module for fetchmail * * For license terms, see the file COPYING in this directory. */ #include "config.h" #include #if defined(STDC_HEADERS) #include #endif #if defined(HAVE_UNISTD_H) #include #endif #include #include #include #if defined(HAVE_SYSLOG) #include #endif #include #ifdef __FreeBSD__ #include #endif #include #include #include #ifdef HAVE_SETRLIMIT #include #endif /* HAVE_SETRLIMIT */ #ifdef HAVE_SOCKS #include /* SOCKSinit() */ #endif /* HAVE_SOCKS */ #ifdef HAVE_LANGINFO_H #include #endif #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 */ int quitind; /* optind after position of last --quit option */ 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 */ char *fetchmailhost; /* either `localhost' or the host's FQDN */ static int quitonly; /* if we should quit after killing the running daemon */ 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 RETSIGTYPE terminate_run(int); static RETSIGTYPE terminate_poll(int); #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 /** returns timestamp in current locale, * and resets LC_TIME locale to POSIX. */ static char *timestamp (void) { time_t now; static char buf[60]; /* RATS: ignore */ time (&now); setlocale (LC_TIME, ""); strftime (buf, sizeof (buf), "%c", localtime(&now)); setlocale (LC_TIME, "C"); return (buf); } #else #define timestamp rfc822timestamp #endif static RETSIGTYPE donothing(int sig) { set_signal_handler(sig, donothing); lastsig = sig; } const char *iana_charset; int main(int argc, char **argv) { int bkgd = FALSE; int implicitmode = FALSE; 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 setlocale (LC_ALL, ""); bindtextdomain(PACKAGE, LOCALEDIR); textdomain(PACKAGE); iana_charset = norm_charmap(nl_langinfo(CODESET)); /* normalize local charset to IANA charset. */ #else iana_charset = "US-ASCII"; #endif if (getuid() == 0) { report(stderr, GT_("WARNING: Running as root is discouraged.\n")); } /* * 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, GT_("fetchmail: invoked with")); for (i = 0; i < argc; i++) report(stdout, " %s", argv[i]); report(stdout, "\n"); } #define IDFILE_NAME ".fetchids" run.idfile = prependdir (IDFILE_NAME, fmhome); outlevel = O_NORMAL; /* * We used to arrange for the lock 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 lock * 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 lock gets nuked on any error exit, basically. */ lock_dispose(); #ifdef HAVE_GETCWD /* save the current directory */ if (getcwd (currentwd, sizeof (currentwd)) == NULL) { report(stderr, GT_("could not get current working directory\n")); currentwd[0] = 0; } #endif { int i; i = parsecmdline(argc, argv, &cmd_run, &cmd_opts); if (i < 0) exit(PS_SYNTAX); if (quitmode && quitind == argc) quitonly = 1; } if (versioninfo) { const char *features = #ifdef POP2_ENABLE "+POP2" #endif /* POP2_ENABLE */ #ifndef POP3_ENABLE "-POP3" #endif /* POP3_ENABLE */ #ifndef IMAP_ENABLE "-IMAP" #endif /* IMAP_ENABLE */ #ifdef GSSAPI "+IMAP-GSS" #endif /* GSSAPI */ #ifdef RPA_ENABLE "+RPA" #endif /* RPA_ENABLE */ #ifdef NTLM_ENABLE "+NTLM" #endif /* NTLM_ENABLE */ #ifdef SDPS_ENABLE "+SDPS" #endif /* SDPS_ENABLE */ #ifndef ETRN_ENABLE "-ETRN" #endif /* ETRN_ENABLE */ #ifndef ODMR_ENABLE "-ODMR" #endif /* ODMR_ENABLE */ #ifdef SSL_ENABLE "+SSL" #endif #ifdef OPIE_ENABLE "+OPIE" #endif /* OPIE_ENABLE */ #ifdef HAVE_PKG_hesiod "+HESIOD" #endif #ifdef HAVE_SOCKS "+SOCKS" #endif /* HAVE_SOCKS */ #ifdef ENABLE_NLS "+NLS" #endif /* ENABLE_NLS */ "\n"; printf(GT_("This is fetchmail release %s"), VERSION); fputs(features, stdout); fputs("Fallback MDA: ", stdout); #ifdef FALLBACK_MDA fputs(FALLBACK_MDA, stdout); #else fputs("(none)", stdout); #endif 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 (!quitonly) 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); /* construct the lockfile */ lock_setup(); #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. */ netrc_file = prependdir (NETRC_FILE, home); netrc_list = parse_netrc(netrc_file); free(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 (NO_PASSWORD(ctl)) /* 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(GT_("Taking options from command line%s%s\n"), havercfile ? "" : GT_(" and "), havercfile ? "" : rcfile); if (querylist == NULL) fprintf(stderr, GT_("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 = lock_state(); bkgd = (pid < 0); pid = bkgd ? -pid : pid; /* if no mail servers listed and nothing in background, we're done */ if (!quitonly && pid == 0 && querylist == NULL) { (void)fputs(GT_("fetchmail: no mailservers have been specified.\n"),stderr); exit(PS_SYNTAX); } /* perhaps user asked us to kill the other fetchmail */ if (quitmode) { if (pid == 0 || pid == getpid()) /* this test enables re-execing on a changed rcfile * for pid == getpid() */ { if (quitonly) { fprintf(stderr,GT_("fetchmail: no other fetchmail is running\n")); exit(PS_EXCLUDE); } } else if (kill(pid, SIGTERM) < 0) { fprintf(stderr,GT_("fetchmail: error killing %s fetchmail at %d; bailing out.\n"), bkgd ? GT_("background") : GT_("foreground"), pid); exit(PS_EXCLUDE); } else { int maxwait; if (outlevel > O_SILENT) fprintf(stderr,GT_("fetchmail: %s fetchmail at %d killed.\n"), bkgd ? GT_("background") : GT_("foreground"), pid); /* We used to nuke the other process's lock here, with * fm_lock_release(), which is broken. The other process * needs to clear its lock by itself. */ if (quitonly) exit(0); /* wait for other process to exit */ maxwait = 10; /* seconds */ while (kill(pid, 0) == 0 && --maxwait >= 0) { sleep(1); } pid = 0; } } /* another fetchmail is running -- wake it up or die */ if (pid != 0) { if (check_only) { fprintf(stderr, GT_("fetchmail: can't check mail while another fetchmail to same host is running.\n")); return(PS_EXCLUDE); } else if (!implicitmode) { fprintf(stderr, GT_("fetchmail: can't poll specified hosts with another fetchmail running at %d.\n"), pid); return(PS_EXCLUDE); } else if (!bkgd) { fprintf(stderr, GT_("fetchmail: another foreground fetchmail is running at %d.\n"), pid); return(PS_EXCLUDE); } else if (getpid() == pid) /* this test enables re-execing on a changed rcfile */ lock_assert(); else if (argc > 1) { fprintf(stderr, GT_("fetchmail: can't accept options while a background fetchmail is running.\n")); return(PS_EXCLUDE); } else if (kill(pid, SIGUSR1) == 0) { fprintf(stderr, GT_("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, GT_("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) && !NO_PASSWORD(ctl) && !ctl->password) { if (!isatty(0)) { fprintf(stderr, GT_("fetchmail: can't find a password for %s@%s.\n"), ctl->remotename, ctl->server.pollname); return(PS_AUTHFAIL); } else { const char* password_prompt = GT_("Enter password for %s@%s: "); size_t pplen = strlen(password_prompt) + strlen(ctl->remotename) + strlen(ctl->server.pollname) + 1; tmpbuf = xmalloc(pplen); snprintf(tmpbuf, pplen, password_prompt, ctl->remotename, ctl->server.pollname); ctl->password = xstrdup((char *)fm_getpassword(tmpbuf)); free(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 */ /* avoid zombies from plugins */ deal_with_sigchld(); /* * Maybe time to go to demon mode... */ if (run.poll_interval) { if (!nodetach) daemonize(run.logfile, terminate_run); report(stdout, GT_("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. */ set_signal_handler(SIGUSR1, SIG_IGN); if (run.poll_interval && getuid() == ROOT_UID) set_signal_handler(SIGHUP, SIG_IGN); } else { if (run.logfile && !nodetach && access(run.logfile, F_OK) == 0) { if (!freopen(run.logfile, "a", stdout)) report(stderr, GT_("could not open %s to append logs to \n"), run.logfile); if (!freopen(run.logfile, "a", stderr)) report(stdout, GT_("could not open %s to append logs to \n"), run.logfile); } } interface_init(); /* beyond here we don't want more than one fetchmail running per user */ umask(0077); set_signal_handler(SIGABRT, terminate_run); set_signal_handler(SIGINT, terminate_run); set_signal_handler(SIGTERM, terminate_run); set_signal_handler(SIGALRM, terminate_run); set_signal_handler(SIGPIPE, terminate_run); set_signal_handler(SIGQUIT, terminate_run); /* here's the exclusion lock */ lock_or_die(); /* * 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, GT_("couldn't time-check %s (error %d)\n"), rcfile, errno); } else if (rcstat.st_mtime > parsetime) { report(stdout, GT_("restarting fetchmail (%s changed)\n"), rcfile); #ifdef HAVE_GETCWD /* restore the startup directory */ if (!currentwd[0] || chdir (currentwd) == -1) report(stderr, GT_("attempt to re-exec may fail as directory has not been restored\n")); #endif /* * Matthias Andree: Isn't this prone to introduction of * "false" programs by interfering with PATH? Those * path-searching execs might not be the best ideas for * this reason. * * Rob Funk: But is there any way for someone to modify * the PATH variable of a running fetchmail? I don't know * of a way. * * Dave's change makes fetchmail restart itself in exactly * the way it was started from the shell (or shell script) * in the first place. If you're concerned about PATH * contamination, call fetchmail initially with a full * path, and use Dave's patch. * * Not using a -p variant of exec means that the restart * will break if both (a) the user depended on PATH to * call fetchmail in the first place, and (b) the system * doesn't save the whole path in argv[0] if the whole * path wasn't used in the initial call. (If I recall * correctly, Linux saves it but many other Unices don't.) */ execvp(argv[0], argv); report(stderr, GT_("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 Linux 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, GT_("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, GT_("interval not reached, not querying %s\n"), ctl->server.pollname); continue; } } #ifdef CAN_MONITOR /* * 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 /* CAN_MONITOR */ dofastuidl = 0; /* this is reset in the driver if required */ querystatus = query_host(ctl); if (NUM_NONZERO(ctl->fastuidl)) ctl->fastuidlcount = (ctl->fastuidlcount + 1) % ctl->fastuidl; #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); else uid_discard_new_list(ctl); uid_reset_num(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,GT_("Query status=0 (SUCCESS)\n"));break; case PS_NOMAIL: report(stdout,GT_("Query status=1 (NOMAIL)\n")); break; case PS_SOCKET: report(stdout,GT_("Query status=2 (SOCKET)\n")); break; case PS_AUTHFAIL: report(stdout,GT_("Query status=3 (AUTHFAIL)\n"));break; case PS_PROTOCOL: report(stdout,GT_("Query status=4 (PROTOCOL)\n"));break; case PS_SYNTAX: report(stdout,GT_("Query status=5 (SYNTAX)\n")); break; case PS_IOERR: report(stdout,GT_("Query status=6 (IOERR)\n")); break; case PS_ERROR: report(stdout,GT_("Query status=7 (ERROR)\n")); break; case PS_EXCLUDE: report(stdout,GT_("Query status=8 (EXCLUDE)\n")); break; case PS_LOCKBUSY: report(stdout,GT_("Query status=9 (LOCKBUSY)\n"));break; case PS_SMTP: report(stdout,GT_("Query status=10 (SMTP)\n")); break; case PS_DNS: report(stdout,GT_("Query status=11 (DNS)\n")); break; case PS_BSMTP: report(stdout,GT_("Query status=12 (BSMTP)\n")); break; case PS_MAXFETCH: report(stdout,GT_("Query status=13 (MAXFETCH)\n"));break; default: report(stdout,GT_("Query status=%d\n"),querystatus); break; } #ifdef CAN_MONITOR 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 /* CAN_MONITOR */ } } #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, GT_("All connections are wedged. Exiting.\n")); /* FIXME: someday, send notification mail */ exit(PS_AUTHFAIL); } if (outlevel > O_SILENT) report(stdout, GT_("sleeping at %s\n"), timestamp()); /* * With this simple hack, we make it possible for a foreground * fetchmail to wake up one in daemon mode. What we want is the * side effect of interrupting any sleep that may be going on, * forcing fetchmail to re-poll its hosts. The second line is * for people who think all system daemons wake up on SIGHUP. */ set_signal_handler(SIGUSR1, donothing); if (getuid() != ROOT_UID) set_signal_handler(SIGHUP, donothing); /* * OK, now pause until 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))) { if (outlevel > O_SILENT) #ifdef SYS_SIGLIST_DECLARED report(stdout, GT_("awakened by %s\n"), sys_siglist[lastsig]); #else report(stdout, GT_("awakened by signal %d\n"), lastsig); #endif for (ctl = querylist; ctl; ctl = ctl->next) ctl->wedged = FALSE; } if (outlevel > O_SILENT) report(stdout, GT_("awakened at %s\n"), timestamp()); } } while (run.poll_interval); if (outlevel >= O_VERBOSE) report(stdout, GT_("normal termination, status %d\n"), successes ? PS_SUCCESS : querystatus); terminate_run(0); if (successes) exit(PS_SUCCESS); else if (querystatus) exit(querystatus); else /* in case we interrupted before a successful fetch */ exit(PS_NOMAIL); } 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->domainlist, &h1->domainlist, 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); FLAG_MERGE(server.service); FLAG_MERGE(server.interval); FLAG_MERGE(server.authenticate); 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); #ifdef CAN_MONITOR FLAG_MERGE(server.interface); FLAG_MERGE(server.interface_pair); FLAG_MERGE(server.monitor); #endif FLAG_MERGE(server.plugin); FLAG_MERGE(server.plugout); FLAG_MERGE(server.tracepolls); 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(limitflush); 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(fetchsizelimit); FLAG_MERGE(fastuidl); FLAG_MERGE(batchlimit); #ifdef SSL_ENABLE FLAG_MERGE(use_ssl); FLAG_MERGE(sslkey); FLAG_MERGE(sslcert); FLAG_MERGE(sslproto); FLAG_MERGE(sslcertck); FLAG_MERGE(sslcertpath); FLAG_MERGE(sslfingerprint); #endif FLAG_MERGE(expunge); FLAG_MERGE(properties); #undef FLAG_MERGE } /** Load configuration files. * \return - true if no servers found on the command line * - false if servers found on the command line */ static int load_params(int argc, char **argv, int optind) { int implicitmode, st; struct passwd *pw; struct query def_opts, *ctl; struct stat rcstat; char *p; run.bouncemail = TRUE; run.spambounce = FALSE; /* don't bounce back to innocent bystanders */ memset(&def_opts, '\0', sizeof(struct query)); def_opts.smtp_socket = -1; def_opts.smtpaddress = (char *)0; def_opts.smtpname = (char *)0; def_opts.server.protocol = P_AUTO; def_opts.server.timeout = CLIENT_TIMEOUT; def_opts.server.esmtp_name = user; def_opts.warnings = WARNING_INTERVAL; def_opts.remotename = user; def_opts.listener = SMTP_MODE; def_opts.fetchsizelimit = 100; def_opts.fastuidl = 10; /* get the location of rcfile */ rcfiledir[0] = 0; p = strrchr (rcfile, '/'); if (p && (p - rcfile) < sizeof (rcfiledir)) { *p = 0; /* replace '/' by '0' */ strlcpy (rcfiledir, rcfile, sizeof(rcfiledir)); *p = '/'; /* restore '/' */ if (!rcfiledir[0]) /* "/.fetchmailrc" case */ strcpy (rcfiledir, "/"); } /* 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, GT_("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 = !ctl->server.skip; } 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,GT_("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) { fprintf(stderr, GT_("fetchmail: Error: multiple \"defaults\" records in config file.\n")); 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; /* * 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 or ODMR, 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. */ for (ctl = querylist; ctl; ctl = ctl->next) if (ctl->active && (ctl->server.protocol==P_ETRN || ctl->server.protocol==P_ODMR || ctl->server.authenticate == A_KERBEROS_V4 || ctl->server.authenticate == A_KERBEROS_V5)) { fetchmailhost = host_fqdn(); break; } /* 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) /* one global gets treated specially */ DEFAULT(run.showdots, run.poll_interval==0 || nodetach); /* merge in wired defaults, do sanity checks and prepare internal fields */ for (ctl = querylist; ctl; ctl = ctl->next) { ctl->wedged = FALSE; /* merge in defaults */ optmerge(ctl, &def_opts, FALSE); /* force command-line options */ optmerge(ctl, &cmd_opts, TRUE); /* * queryname has to be set up for inactive servers too. * Otherwise the UIDL code core-dumps on startup. */ if (ctl->server.via) ctl->server.queryname = xstrdup(ctl->server.via); else ctl->server.queryname = xstrdup(ctl->server.pollname); /* * We no longer do DNS lookups at startup. * This is a kluge. It enables users to edit their * configurations when DNS isn't available. */ ctl->server.truename = xstrdup(ctl->server.queryname); if (configdump || ctl->active ) { DEFAULT(ctl->keep, FALSE); DEFAULT(ctl->fetchall, FALSE); DEFAULT(ctl->flush, FALSE); DEFAULT(ctl->limitflush, 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); DEFAULT(ctl->use_ssl, FALSE); DEFAULT(ctl->sslcertck, FALSE); DEFAULT(ctl->server.checkalias, FALSE); #ifndef SSL_ENABLE /* * XXX FIXME: do we need this check or can we rely on the .y * parser handling this? */ if (ctl->use_ssl) { report(stderr, GT_("SSL support is not compiled in.\n")); exit(PS_SYNTAX); } #endif /* SSL_ENABLE */ #undef DEFAULT /* * Make sure we have a nonempty host list to forward to. */ if (!ctl->smtphunt) save_str(&ctl->smtphunt, fetchmailhost, FALSE); /* * Make sure we have a nonempty list of domains to fetch from. */ if ((ctl->server.protocol==P_ETRN || ctl->server.protocol==P_ODMR) && !ctl->domainlist) save_str(&ctl->domainlist, 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); #ifndef HAVE_RES_SEARCH /* can't handle multidrop mailboxes unless we can do DNS lookups */ if (MULTIDROP(ctl) && ctl->server.dns) { ctl->server.dns = FALSE; report(stderr, GT_("fetchmail: warning: no DNS available to check multidrop fetches from %s\n"), ctl->server.pollname); } #endif /* !HAVE_RES_SEARCH */ /* * can't handle multidrop mailboxes without "envelope" * option, this causes truckloads full of support complaints * "all mail forwarded to postmaster" */ if (MULTIDROP(ctl) && !ctl->server.envelope) { report(stderr, GT_("warning: multidrop for %s requires envelope option!\n"), ctl->server.pollname); report(stderr, GT_("warning: Do not ask for support if all mail goes to postmaster!\n")); } /* 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; /* sanity checks */ if (ctl->server.service) { int port = servport(ctl->server.service); if (port < 0) { (void) fprintf(stderr, GT_("fetchmail: %s configuration invalid, specify positive port number for service or port\n"), ctl->server.pollname); exit(PS_SYNTAX); } if (ctl->server.protocol == P_RPOP && port >= 1024) { (void) fprintf(stderr, GT_("fetchmail: %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, '/')) || ++cp, (0 == strcmp(cp, SMTP_PORT)) || servport(cp) == SMTP_PORT_NUM) { (void) fprintf(stderr, GT_("%s configuration invalid, LMTP can't use default SMTP port\n"), ctl->server.pollname); exit(PS_SYNTAX); } } } /* * "I beg to you, have mercy on the we[a]k minds like myself." * wrote Pehr Anderson. Your petition is granted. */ if (ctl->fetchall && ctl->keep && run.poll_interval && !nodetach) { (void) fprintf(stderr, GT_("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() != ROOT_UID) /* ordinary user */ run.postmaster = user; else /* root */ run.postmaster = "postmaster"; } return(implicitmode); } static RETSIGTYPE 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, GT_("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) { /* don't send QUIT for ODMR case because we're acting as a proxy between the SMTP server and client. */ smtp_close(ctl, ctl->server.protocol != P_ODMR); } } #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 RETSIGTYPE 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) fm_lock_release(); #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 = 0; /* * If we're syslogging the progress messages are automatically timestamped. * Force timestamping if we're going to a logfile. */ if (outlevel >= O_VERBOSE) { report(stdout, GT_("%s querying %s (protocol %s) at %s: poll started\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]; do { st = query_host(ctl); } while (st == PS_REPOLL); if (st == PS_SUCCESS || st == PS_NOMAIL || st == PS_AUTHFAIL || st == PS_LOCKBUSY || st == PS_SMTP || st == PS_MAXFETCH || st == PS_DNS) break; } ctl->server.protocol = P_AUTO; break; case P_POP2: #ifdef POP2_ENABLE st = doPOP2(ctl); #else report(stderr, GT_("POP2 support is not configured.\n")); st = PS_PROTOCOL; #endif /* POP2_ENABLE */ break; case P_POP3: case P_APOP: case P_RPOP: #ifdef POP3_ENABLE do { st = doPOP3(ctl); } while (st == PS_REPOLL); #else report(stderr, GT_("POP3 support is not configured.\n")); st = PS_PROTOCOL; #endif /* POP3_ENABLE */ break; case P_IMAP: #ifdef IMAP_ENABLE do { st = doIMAP(ctl); } while (st == PS_REPOLL); #else report(stderr, GT_("IMAP support is not configured.\n")); st = PS_PROTOCOL; #endif /* IMAP_ENABLE */ break; case P_ETRN: #ifndef ETRN_ENABLE report(stderr, GT_("ETRN support is not configured.\n")); st = PS_PROTOCOL; #else st = doETRN(ctl); break; #endif /* ETRN_ENABLE */ case P_ODMR: #ifndef ODMR_ENABLE report(stderr, GT_("ODMR support is not configured.\n")); st = PS_PROTOCOL; #else st = doODMR(ctl); #endif /* ODMR_ENABLE */ break; default: report(stderr, GT_("unsupported protocol selected.\n")); st = PS_PROTOCOL; } /* * If we're syslogging the progress messages are automatically timestamped. * Force timestamping if we're going to a logfile. */ if (outlevel >= O_VERBOSE) { report(stdout, GT_("%s querying %s (protocol %s) at %s: poll completed\n"), VERSION, ctl->server.pollname, showproto(ctl->server.protocol), timestamp()); } return(st); } 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(GT_("Poll interval is %d seconds\n"), runp->poll_interval); if (runp->logfile) printf(GT_("Logfile is %s\n"), runp->logfile); if (strcmp(runp->idfile, IDFILE_NAME)) printf(GT_("Idfile is %s\n"), runp->idfile); #if defined(HAVE_SYSLOG) if (runp->use_syslog) printf(GT_("Progress messages will be logged via syslog\n")); #endif if (runp->invisible) printf(GT_("Fetchmail will masquerade and will not generate Received\n")); if (runp->showdots) printf(GT_("Fetchmail will show progress dots even in logfiles.\n")); if (runp->postmaster) printf(GT_("Fetchmail will forward misaddressed multidrop messages to %s.\n"), runp->postmaster); if (!runp->bouncemail) printf(GT_("Fetchmail will direct error mail to the postmaster.\n")); else if (outlevel >= O_VERBOSE) printf(GT_("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(GT_("Options for retrieving from %s@%s:\n"), ctl->remotename, visbuf(ctl->server.pollname)); if (ctl->server.via && MAILBOX_PROTOCOL(ctl)) printf(GT_(" Mail will be retrieved via %s\n"), ctl->server.via); if (ctl->server.interval) printf(ngettext(" Poll of this server will occur every %d interval.\n", " Poll of this server will occur every %d intervals.\n", ctl->server.interval), ctl->server.interval); if (ctl->server.truename) printf(GT_(" True name of server is %s.\n"), ctl->server.truename); if (ctl->server.skip || outlevel >= O_VERBOSE) printf(ctl->server.skip ? GT_(" This host will not be queried when no host is specified.\n") : GT_(" This host will be queried when no host is specified.\n")); if (!NO_PASSWORD(ctl)) { if (!ctl->password) printf(GT_(" Password will be prompted for.\n")); else if (outlevel >= O_VERBOSE) { if (ctl->server.protocol == P_APOP) printf(GT_(" APOP secret = \"%s\".\n"), visbuf(ctl->password)); else if (ctl->server.protocol == P_RPOP) printf(GT_(" RPOP id = \"%s\".\n"), visbuf(ctl->password)); else printf(GT_(" Password = \"%s\".\n"), visbuf(ctl->password)); } } if (ctl->server.protocol == P_POP3 && ctl->server.service && !strcmp(ctl->server.service, KPOP_PORT) && (ctl->server.authenticate == A_KERBEROS_V4 || ctl->server.authenticate == A_KERBEROS_V5)) printf(GT_(" Protocol is KPOP with Kerberos %s authentication"), ctl->server.authenticate == A_KERBEROS_V5 ? "V" : "IV"); else printf(GT_(" Protocol is %s"), showproto(ctl->server.protocol)); if (ctl->server.service) printf(GT_(" (using service %s)"), ctl->server.service); else if (outlevel >= O_VERBOSE) printf(GT_(" (using default port)")); if (ctl->server.uidl && MAILBOX_PROTOCOL(ctl)) printf(GT_(" (forcing UIDL use)")); putchar('.'); putchar('\n'); switch (ctl->server.authenticate) { case A_ANY: printf(GT_(" All available authentication methods will be tried.\n")); break; case A_PASSWORD: printf(GT_(" Password authentication will be forced.\n")); break; case A_MSN: printf(GT_(" MSN authentication will be forced.\n")); break; case A_NTLM: printf(GT_(" NTLM authentication will be forced.\n")); break; case A_OTP: printf(GT_(" OTP authentication will be forced.\n")); break; case A_CRAM_MD5: printf(GT_(" CRAM-Md5 authentication will be forced.\n")); break; case A_GSSAPI: printf(GT_(" GSSAPI authentication will be forced.\n")); break; case A_KERBEROS_V4: printf(GT_(" Kerberos V4 authentication will be forced.\n")); break; case A_KERBEROS_V5: printf(GT_(" Kerberos V5 authentication will be forced.\n")); break; case A_SSH: printf(GT_(" End-to-end encryption assumed.\n")); break; } if (ctl->server.principal != (char *) NULL) printf(GT_(" Mail service principal is: %s\n"), ctl->server.principal); #ifdef SSL_ENABLE if (ctl->use_ssl) printf(GT_(" SSL encrypted sessions enabled.\n")); if (ctl->sslproto) printf(GT_(" SSL protocol: %s.\n"), ctl->sslproto); if (ctl->sslcertck) { printf(GT_(" SSL server certificate checking enabled.\n")); if (ctl->sslcertpath != NULL) printf(GT_(" SSL trusted certificate directory: %s\n"), ctl->sslcertpath); } if (ctl->sslfingerprint != NULL) printf(GT_(" SSL key fingerprint (checked against the server key): %s\n"), ctl->sslfingerprint); #endif if (ctl->server.timeout > 0) printf(GT_(" Server nonresponse timeout is %d seconds"), ctl->server.timeout); if (ctl->server.timeout == CLIENT_TIMEOUT) printf(GT_(" (default).\n")); else printf(".\n"); if (MAILBOX_PROTOCOL(ctl)) { if (!ctl->mailboxes->id) printf(GT_(" Default mailbox selected.\n")); else { struct idlist *idp; printf(GT_(" Selected mailboxes are:")); for (idp = ctl->mailboxes; idp; idp = idp->next) printf(" %s", (char *)idp->id); printf("\n"); } printf(ctl->fetchall ? GT_(" All messages will be retrieved (--all on).\n") : GT_(" Only new messages will be retrieved (--all off).\n")); printf(ctl->keep ? GT_(" Fetched messages will be kept on the server (--keep on).\n") : GT_(" Fetched messages will not be kept on the server (--keep off).\n")); printf(ctl->flush ? GT_(" Old messages will be flushed before message retrieval (--flush on).\n") : GT_(" Old messages will not be flushed before message retrieval (--flush off).\n")); printf(ctl->limitflush ? GT_(" Oversized messages will be flushed before message retrieval (--limitflush on).\n") : GT_(" Oversized messages will not be flushed before message retrieval (--limitflush off).\n")); printf(ctl->rewrite ? GT_(" Rewrite of server-local addresses is enabled (--norewrite off).\n") : GT_(" Rewrite of server-local addresses is disabled (--norewrite on).\n")); printf(ctl->stripcr ? GT_(" Carriage-return stripping is enabled (stripcr on).\n") : GT_(" Carriage-return stripping is disabled (stripcr off).\n")); printf(ctl->forcecr ? GT_(" Carriage-return forcing is enabled (forcecr on).\n") : GT_(" Carriage-return forcing is disabled (forcecr off).\n")); printf(ctl->pass8bits ? GT_(" Interpretation of Content-Transfer-Encoding is disabled (pass8bits on).\n") : GT_(" Interpretation of Content-Transfer-Encoding is enabled (pass8bits off).\n")); printf(ctl->mimedecode ? GT_(" MIME decoding is enabled (mimedecode on).\n") : GT_(" MIME decoding is disabled (mimedecode off).\n")); printf(ctl->idle ? GT_(" Idle after poll is enabled (idle on).\n") : GT_(" Idle after poll is disabled (idle off).\n")); printf(ctl->dropstatus ? GT_(" Nonempty Status lines will be discarded (dropstatus on)\n") : GT_(" Nonempty Status lines will be kept (dropstatus off)\n")); printf(ctl->dropdelivered ? GT_(" Delivered-To lines will be discarded (dropdelivered on)\n") : GT_(" Delivered-To lines will be kept (dropdelivered off)\n")); if (NUM_NONZERO(ctl->limit)) { if (NUM_NONZERO(ctl->limit)) printf(GT_(" Message size limit is %d octets (--limit %d).\n"), ctl->limit, ctl->limit); else if (outlevel >= O_VERBOSE) printf(GT_(" No message size limit (--limit 0).\n")); if (run.poll_interval > 0) printf(GT_(" Message size warning interval is %d seconds (--warnings %d).\n"), ctl->warnings, ctl->warnings); else if (outlevel >= O_VERBOSE) printf(GT_(" Size warnings on every poll (--warnings 0).\n")); } if (NUM_NONZERO(ctl->fetchlimit)) printf(GT_(" Received-message limit is %d (--fetchlimit %d).\n"), ctl->fetchlimit, ctl->fetchlimit); else if (outlevel >= O_VERBOSE) printf(GT_(" No received-message limit (--fetchlimit 0).\n")); if (NUM_NONZERO(ctl->fetchsizelimit)) printf(GT_(" Fetch message size limit is %d (--fetchsizelimit %d).\n"), ctl->fetchsizelimit, ctl->fetchsizelimit); else if (outlevel >= O_VERBOSE) printf(GT_(" No fetch message size limit (--fetchsizelimit 0).\n")); if (NUM_NONZERO(ctl->fastuidl) && MAILBOX_PROTOCOL(ctl)) { if (ctl->fastuidl == 1) printf(GT_(" Do binary search of UIDs during each poll (--fastuidl 1).\n")); else printf(GT_(" Do binary search of UIDs during %d out of %d polls (--fastuidl %d).\n"), ctl->fastuidl - 1, ctl->fastuidl, ctl->fastuidl); } else if (outlevel >= O_VERBOSE) printf(GT_(" Do linear search of UIDs during each poll (--fastuidl 0).\n")); if (NUM_NONZERO(ctl->batchlimit)) printf(GT_(" SMTP message batch limit is %d.\n"), ctl->batchlimit); else if (outlevel >= O_VERBOSE) printf(GT_(" No SMTP message batch limit (--batchlimit 0).\n")); if (MAILBOX_PROTOCOL(ctl)) { if (NUM_NONZERO(ctl->expunge)) printf(GT_(" Deletion interval between expunges forced to %d (--expunge %d).\n"), ctl->expunge, ctl->expunge); else if (outlevel >= O_VERBOSE) printf(GT_(" No forced expunges (--expunge 0).\n")); } } else /* ODMR or ETRN */ { struct idlist *idp; printf(GT_(" Domains for which mail will be fetched are:")); for (idp = ctl->domainlist; idp; idp = idp->next) { printf(" %s", (char *)idp->id); if (!idp->val.status.mark) printf(GT_(" (default)")); } printf("\n"); } if (ctl->bsmtp) printf(GT_(" Messages will be appended to %s as BSMTP\n"), visbuf(ctl->bsmtp)); else if (ctl->mda && MAILBOX_PROTOCOL(ctl)) printf(GT_(" Messages will be delivered with \"%s\".\n"), visbuf(ctl->mda)); else { struct idlist *idp; if (ctl->smtphunt) { printf(GT_(" Messages will be %cMTP-forwarded to:"), ctl->listener); for (idp = ctl->smtphunt; idp; idp = idp->next) { printf(" %s", (char *)idp->id); if (!idp->val.status.mark) printf(GT_(" (default)")); } printf("\n"); } if (ctl->smtpaddress) printf(GT_(" Host part of MAIL FROM line will be %s\n"), ctl->smtpaddress); if (ctl->smtpname) printf(GT_(" Address to be put in RCPT TO lines shipped to SMTP will be %s\n"), ctl->smtpname); } if (MAILBOX_PROTOCOL(ctl)) { if (ctl->antispam != (struct idlist *)NULL) { struct idlist *idp; printf(GT_(" 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(GT_(" Spam-blocking disabled\n")); } if (ctl->preconnect) printf(GT_(" Server connection will be brought up with \"%s\".\n"), visbuf(ctl->preconnect)); else if (outlevel >= O_VERBOSE) printf(GT_(" No pre-connection command.\n")); if (ctl->postconnect) printf(GT_(" Server connection will be taken down with \"%s\".\n"), visbuf(ctl->postconnect)); else if (outlevel >= O_VERBOSE) printf(GT_(" No post-connection command.\n")); if (MAILBOX_PROTOCOL(ctl)) { if (!ctl->localnames) printf(GT_(" 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(GT_(" Multi-drop mode: ")); else printf(GT_(" Single-drop mode: ")); printf(ngettext("%d local name recognized.\n", "%d local names recognized.\n", count), count); if (outlevel >= O_VERBOSE) { for (idp = ctl->localnames; idp; idp = idp->next) if (idp->val.id2) printf("\t%s -> %s\n", (char *)idp->id, (char *)idp->val.id2); else printf("\t%s\n", (char *)idp->id); if (ctl->wildcard) fputs("\t*\n", stdout); } if (count > 1 || ctl->wildcard) { printf(ctl->server.dns ? GT_(" DNS lookup for multidrop addresses is enabled.\n") : GT_(" DNS lookup for multidrop addresses is disabled.\n")); if (ctl->server.dns) { if (ctl->server.checkalias) printf(GT_(" Server aliases will be compared with multidrop addresses by IP address.\n")); else printf(GT_(" Server aliases will be compared with multidrop addresses by name.\n")); } if (ctl->server.envelope == STRING_DISABLED) printf(GT_(" Envelope-address routing is disabled\n")); else { printf(GT_(" Envelope header is assumed to be: %s\n"), ctl->server.envelope ? ctl->server.envelope : "Received"); if (ctl->server.envskip || outlevel >= O_VERBOSE) printf(GT_(" Number of envelope headers to be skipped over: %d\n"), ctl->server.envskip); if (ctl->server.qvirtual) printf(GT_(" Prefix %s will be removed from user id\n"), ctl->server.qvirtual); else if (outlevel >= O_VERBOSE) printf(GT_(" No prefix stripping\n")); } if (ctl->server.akalist) { struct idlist *idp; printf(GT_(" Predeclared mailserver aliases:")); for (idp = ctl->server.akalist; idp; idp = idp->next) printf(" %s", (char *)idp->id); putchar('\n'); } if (ctl->server.localdomains) { struct idlist *idp; printf(GT_(" Local domains:")); for (idp = ctl->server.localdomains; idp; idp = idp->next) printf(" %s", (char *)idp->id); putchar('\n'); } } } } #ifdef CAN_MONITOR if (ctl->server.interface) printf(GT_(" Connection must be through interface %s.\n"), ctl->server.interface); else if (outlevel >= O_VERBOSE) printf(GT_(" No interface requirement specified.\n")); if (ctl->server.monitor) printf(GT_(" Polling loop will monitor %s.\n"), ctl->server.monitor); else if (outlevel >= O_VERBOSE) printf(GT_(" No monitor interface specified.\n")); #endif if (ctl->server.plugin) printf(GT_(" Server connections will be made via plugin %s (--plugin %s).\n"), ctl->server.plugin, ctl->server.plugin); else if (outlevel >= O_VERBOSE) printf(GT_(" No plugin command specified.\n")); if (ctl->server.plugout) printf(GT_(" Listener connections will be made via plugout %s (--plugout %s).\n"), ctl->server.plugout, ctl->server.plugout); else if (outlevel >= O_VERBOSE) printf(GT_(" No plugout command specified.\n")); if (ctl->server.protocol > P_POP2 && MAILBOX_PROTOCOL(ctl)) { if (!ctl->oldsaved) printf(GT_(" No UIDs saved from this host.\n")); else { struct idlist *idp; int count = 0; for (idp = ctl->oldsaved; idp; idp = idp->next) ++count; printf(GT_(" %d UIDs saved.\n"), count); if (outlevel >= O_VERBOSE) for (idp = ctl->oldsaved; idp; idp = idp->next) printf("\t%s\n", (char *)idp->id); } } if (ctl->server.tracepolls) printf(GT_(" Poll trace information will be added to the Received header.\n")); else if (outlevel >= O_VERBOSE) printf(GT_(" No poll trace information will be added to the Received header.\n.\n")); if (ctl->properties) printf(GT_(" Pass-through properties \"%s\".\n"), visbuf(ctl->properties)); } } /* fetchmail.c ends here */