X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fsrc%2Fexim.c;h=d8411082abebb56b25767edd4758488eb3face68;hb=06fdb9f73dedfffc8b8613017ec1bb23f970b246;hp=e199279b80816fe687cee3d843984fe1c21cbcf3;hpb=bb07bcd32250965a896b0856dd1b839b5795e2f4;p=user%2Fhenk%2Fcode%2Fexim.git diff --git a/src/src/exim.c b/src/src/exim.c index e199279b8..d8411082a 100644 --- a/src/src/exim.c +++ b/src/src/exim.c @@ -2,7 +2,7 @@ * Exim - an Internet mail transport agent * *************************************************/ -/* Copyright (c) University of Cambridge 1995 - 2016 */ +/* Copyright (c) University of Cambridge 1995 - 2017 */ /* See the file NOTICE for conditions of use and distribution. */ @@ -658,12 +658,13 @@ Returns: does not return */ void -exim_exit(int rc) +exim_exit(int rc, const uschar * process) { search_tidyup(); DEBUG(D_any) - debug_printf(">>>>>>>>>>>>>>>> Exim pid=%d terminating with rc=%d " - ">>>>>>>>>>>>>>>>\n", (int)getpid(), rc); + debug_printf(">>>>>>>>>>>>>>>> Exim pid=%d %s%s%sterminating with rc=%d " + ">>>>>>>>>>>>>>>>\n", (int)getpid(), + process ? "(" : "", process, process ? ") " : "", rc); exit(rc); } @@ -742,26 +743,26 @@ else * Show supported features * *************************************************/ -/* This function is called for -bV/--version and for -d to output the optional -features of the current Exim binary. - -Arguments: a FILE for printing -Returns: nothing -*/ - static void -show_whats_supported(FILE *f) +show_db_version(FILE * f) { - auth_info *authi; - #ifdef DB_VERSION_STRING -fprintf(f, "Berkeley DB: %s\n", DB_VERSION_STRING); +DEBUG(D_any) + { + fprintf(f, "Library version: BDB: Compile: %s\n", DB_VERSION_STRING); + fprintf(f, " Runtime: %s\n", + db_version(NULL, NULL, NULL)); + } +else + fprintf(f, "Berkeley DB: %s\n", DB_VERSION_STRING); + #elif defined(BTREEVERSION) && defined(HASHVERSION) #ifdef USE_DB fprintf(f, "Probably Berkeley DB version 1.8x (native mode)\n"); #else fprintf(f, "Probably Berkeley DB version 1.8x (compatibility mode)\n"); #endif + #elif defined(_DBM_RDONLY) || defined(dbm_dirfno) fprintf(f, "Probably ndbm\n"); #elif defined(USE_TDB) @@ -773,6 +774,22 @@ fprintf(f, "Using tdb\n"); fprintf(f, "Probably GDBM (compatibility mode)\n"); #endif #endif +} + + +/* This function is called for -bV/--version and for -d to output the optional +features of the current Exim binary. + +Arguments: a FILE for printing +Returns: nothing +*/ + +static void +show_whats_supported(FILE * f) +{ +auth_info * authi; + +DEBUG(D_any) {} else show_db_version(f); fprintf(f, "Support for:"); #ifdef SUPPORT_CRYPTEQ @@ -800,11 +817,11 @@ fprintf(f, "Support for:"); fprintf(f, " TCPwrappers"); #endif #ifdef SUPPORT_TLS - #ifdef USE_GNUTLS +# ifdef USE_GNUTLS fprintf(f, " GnuTLS"); - #else +# else fprintf(f, " OpenSSL"); - #endif +# endif #endif #ifdef SUPPORT_TRANSLATE_IP_ADDRESS fprintf(f, " translate_ip_address"); @@ -839,6 +856,9 @@ fprintf(f, "Support for:"); #ifdef SUPPORT_SOCKS fprintf(f, " SOCKS"); #endif +#ifdef SUPPORT_SPF + fprintf(f, " SPF"); +#endif #ifdef TCP_FASTOPEN deliver_init(); if (tcp_fastopen_ok) fprintf(f, " TCP_Fast_Open"); @@ -849,9 +869,6 @@ fprintf(f, "Support for:"); #ifdef EXPERIMENTAL_QUEUEFILE fprintf(f, " Experimental_QUEUEFILE"); #endif -#ifdef EXPERIMENTAL_SPF - fprintf(f, " Experimental_SPF"); -#endif #ifdef EXPERIMENTAL_SRS fprintf(f, " Experimental_SRS"); #endif @@ -929,86 +946,13 @@ fprintf(f, "Lookups (built-in):"); #endif fprintf(f, "\n"); -fprintf(f, "Authenticators:"); -#ifdef AUTH_CRAM_MD5 - fprintf(f, " cram_md5"); -#endif -#ifdef AUTH_CYRUS_SASL - fprintf(f, " cyrus_sasl"); -#endif -#ifdef AUTH_DOVECOT - fprintf(f, " dovecot"); -#endif -#ifdef AUTH_GSASL - fprintf(f, " gsasl"); -#endif -#ifdef AUTH_HEIMDAL_GSSAPI - fprintf(f, " heimdal_gssapi"); -#endif -#ifdef AUTH_PLAINTEXT - fprintf(f, " plaintext"); -#endif -#ifdef AUTH_SPA - fprintf(f, " spa"); -#endif -#ifdef AUTH_TLS - fprintf(f, " tls"); -#endif -fprintf(f, "\n"); - -fprintf(f, "Routers:"); -#ifdef ROUTER_ACCEPT - fprintf(f, " accept"); -#endif -#ifdef ROUTER_DNSLOOKUP - fprintf(f, " dnslookup"); -#endif -#ifdef ROUTER_IPLITERAL - fprintf(f, " ipliteral"); -#endif -#ifdef ROUTER_IPLOOKUP - fprintf(f, " iplookup"); -#endif -#ifdef ROUTER_MANUALROUTE - fprintf(f, " manualroute"); -#endif -#ifdef ROUTER_QUERYPROGRAM - fprintf(f, " queryprogram"); -#endif -#ifdef ROUTER_REDIRECT - fprintf(f, " redirect"); -#endif -fprintf(f, "\n"); +auth_show_supported(f); +route_show_supported(f); +transport_show_supported(f); -fprintf(f, "Transports:"); -#ifdef TRANSPORT_APPENDFILE - fprintf(f, " appendfile"); - #ifdef SUPPORT_MAILDIR - fprintf(f, "/maildir"); - #endif - #ifdef SUPPORT_MAILSTORE - fprintf(f, "/mailstore"); - #endif - #ifdef SUPPORT_MBX - fprintf(f, "/mbx"); - #endif -#endif -#ifdef TRANSPORT_AUTOREPLY - fprintf(f, " autoreply"); -#endif -#ifdef TRANSPORT_LMTP - fprintf(f, " lmtp"); -#endif -#ifdef TRANSPORT_PIPE - fprintf(f, " pipe"); -#endif -#ifdef EXPERIMENTAL_QUEUEFILE - fprintf(f, " queuefile"); -#endif -#ifdef TRANSPORT_SMTP - fprintf(f, " smtp"); +#ifdef WITH_CONTENT_SCAN +malware_show_supported(f); #endif -fprintf(f, "\n"); if (fixed_never_users[0] > 0) { @@ -1052,6 +996,8 @@ DEBUG(D_any) do { gnu_get_libc_version()); #endif +show_db_version(f); + #ifdef SUPPORT_TLS tls_version_report(f); #endif @@ -1119,8 +1065,8 @@ switch(request) "If the string is not recognised, you'll get this help (on stderr).\n" "\n" " exim -bI:help this information\n" -" exim -bI:dscp dscp value keywords known\n" -" exim -bI:sieve list of supported sieve extensions, one per line.\n" +" exim -bI:dscp list of known dscp value keywords\n" +" exim -bI:sieve list of supported sieve extensions\n" ); return; case CMDINFO_SIEVE: @@ -1456,6 +1402,39 @@ return TRUE; } +/************************************************* +* Expansion testing * +*************************************************/ + +/* Expand and print one item, doing macro-processing. + +Arguments: + item line for expansion +*/ + +static void +expansion_test_line(uschar * line) +{ +int len; +BOOL dummy_macexp; + +Ustrncpy(big_buffer, line, big_buffer_size); +big_buffer[big_buffer_size-1] = '\0'; +len = Ustrlen(big_buffer); + +(void) macros_expand(0, &len, &dummy_macexp); + +if (isupper(big_buffer[0])) + { + if (macro_read_assignment(big_buffer)) + printf("Defined macro '%s'\n", mlast->name); + } +else + if ((line = expand_string(big_buffer))) printf("%s\n", CS line); + else printf("Failed: %s\n", expand_string_message); +} + + /************************************************* * Entry point and high-level code * *************************************************/ @@ -3195,10 +3174,10 @@ for (i = 1; i < argc; i++) which sets the host protocol and host name */ if (*argrest == 0) - { - if (i+1 < argc) argrest = argv[++i]; else + if (i+1 < argc) + argrest = argv[++i]; + else { badarg = TRUE; break; } - } if (*argrest != 0) { @@ -3212,9 +3191,7 @@ for (i = 1; i < argc; i++) hn = Ustrchr(argrest, ':'); if (hn == NULL) - { received_protocol = argrest; - } else { int old_pool = store_pool; @@ -3794,12 +3771,9 @@ NOTE: immediatly after opening the configuration file we change the working directory to "/"! Later we change to $spool_directory. We do it there, because during readconf_main() some expansion takes place already. */ -/* Store the initial cwd before we change directories */ -if ((initial_cwd = os_getcwd(NULL, 0)) == NULL) - { - perror("exim: can't get the current working directory"); - exit(EXIT_FAILURE); - } +/* Store the initial cwd before we change directories. Can be NULL if the +dir has already been unlinked. */ +initial_cwd = os_getcwd(NULL, 0); /* checking: -be[m] expansion test - @@ -3877,7 +3851,7 @@ else } /* At this point, we know if the user is privileged and some command-line -options become possibly imperssible, depending upon the configuration file. */ +options become possibly impermissible, depending upon the configuration file. */ if (checking && commandline_checks_require_admin && !admin_user) { fprintf(stderr, "exim: those command-line flags are set to require admin\n"); @@ -4483,7 +4457,7 @@ if (test_retry_arg >= 0) if (test_retry_arg >= argc) { printf("-brt needs a domain or address argument\n"); - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"main"); } s1 = argv[test_retry_arg++]; s2 = NULL; @@ -4589,7 +4563,7 @@ if (test_retry_arg >= 0) printf("\n"); } - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } /* Handle a request to list one or more configuration options */ @@ -4613,14 +4587,14 @@ if (list_options) } else readconf_print(argv[i], NULL, flag_n); } - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } if (list_config) { set_process_info("listing config"); readconf_print(US"config", NULL, flag_n); - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } @@ -4649,7 +4623,7 @@ if (msg_action_arg > 0 && msg_action != MSG_LOAD) if (prod_requires_admin && !admin_user) { fprintf(stderr, "exim: Permission denied\n"); - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"main"); } set_process_info("delivering specified messages"); if (deliver_give_up) forced_delivery = deliver_force_thaw = TRUE; @@ -4668,11 +4642,11 @@ if (msg_action_arg > 0 && msg_action != MSG_LOAD) { fprintf(stderr, "failed to fork delivery process for %s: %s\n", argv[i], strerror(errno)); - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"main"); } else wait(&status); } - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } @@ -4691,7 +4665,7 @@ if (queue_interval == 0 && !daemon_listen) else set_process_info("running the queue (single queue run)"); queue_run(start_queue_run_id, stop_queue_run_id, FALSE); - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } @@ -4844,10 +4818,10 @@ if (test_rewrite_arg >= 0) if (test_rewrite_arg >= argc) { printf("-brw needs an address argument\n"); - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"main"); } rewrite_test(argv[test_rewrite_arg]); - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } /* A locally-supplied message is considered to be coming from a local user @@ -4962,7 +4936,7 @@ if (verify_address_mode || address_test_mode) } route_tidyup(); - exim_exit(exit_value); + exim_exit(exit_value, US"main"); } /* Handle expansion checking. Either expand items on the command line, or read @@ -4992,7 +4966,7 @@ if (expansion_test) /* Read a test message from a file. We fudge it up to be on stdin, saving stdin itself for later reading of expansion strings. */ - else if (expansion_test_message != NULL) + else if (expansion_test_message) { int save_stdin = dup(0); int fd = Uopen(expansion_test_message, O_RDONLY, 0); @@ -5012,6 +4986,10 @@ if (expansion_test) clearerr(stdin); /* Required by Darwin */ } + /* Only admin users may see config-file macros this way */ + + if (!admin_user) macros = mlast = NULL; + /* Allow $recipients for this testing */ enable_dollar_recipients = TRUE; @@ -5019,15 +4997,8 @@ if (expansion_test) /* Expand command line items */ if (recipients_arg < argc) - { while (recipients_arg < argc) - { - uschar *s = argv[recipients_arg++]; - uschar *ss = expand_string(s); - if (ss == NULL) printf ("Failed: %s\n", expand_string_message); - else printf("%s\n", CS ss); - } - } + expansion_test_line(argv[recipients_arg++]); /* Read stdin */ @@ -5035,25 +5006,18 @@ if (expansion_test) { char *(*fn_readline)(const char *) = NULL; void (*fn_addhist)(const char *) = NULL; + uschar * s; - #ifdef USE_READLINE +#ifdef USE_READLINE void *dlhandle = set_readline(&fn_readline, &fn_addhist); - #endif +#endif - for (;;) - { - uschar *ss; - uschar *source = get_stdinput(fn_readline, fn_addhist); - if (source == NULL) break; - ss = expand_string(source); - if (ss == NULL) - printf ("Failed: %s\n", expand_string_message); - else printf("%s\n", CS ss); - } + while (s = get_stdinput(fn_readline, fn_addhist)) + expansion_test_line(s); - #ifdef USE_READLINE - if (dlhandle != NULL) dlclose(dlhandle); - #endif +#ifdef USE_READLINE + if (dlhandle) dlclose(dlhandle); +#endif } /* The data file will be open after -Mset */ @@ -5064,7 +5028,7 @@ if (expansion_test) deliver_datafile = -1; } - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main: expansion test"); } @@ -5158,7 +5122,7 @@ if (host_checking) } smtp_log_no_mail(); } - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } @@ -5322,7 +5286,7 @@ if (smtp_input) if (!smtp_start_session()) { mac_smtp_fflush(); - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"smtp_start toplevel"); } } @@ -5437,14 +5401,14 @@ while (more) cancel_cutthrough_connection(TRUE, US"receive dropped"); if (more) goto moreloop; smtp_log_no_mail(); /* Log no mail if configured */ - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"receive toplevel"); } } else { cancel_cutthrough_connection(TRUE, US"message setup dropped"); smtp_log_no_mail(); /* Log no mail if configured */ - exim_exit((rc == 0)? EXIT_SUCCESS : EXIT_FAILURE); + exim_exit(rc ? EXIT_FAILURE : EXIT_SUCCESS, US"msg setup toplevel"); } } @@ -5495,14 +5459,12 @@ while (more) if (error_handling == ERRORS_STDERR) { fprintf(stderr, "exim: too many recipients\n"); - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"main"); } else - { return moan_to_sender(ERRMESS_TOOMANYRECIP, NULL, NULL, stdin, TRUE)? errors_sender_rc : EXIT_FAILURE; - } #ifdef SUPPORT_I18N { @@ -5531,7 +5493,7 @@ while (more) { fprintf(stderr, "exim: bad recipient address \"%s\": %s\n", string_printing(list[i]), errmess); - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"main"); } else { @@ -5604,7 +5566,7 @@ while (more) for real; when reading the headers of a message for filter testing, it is TRUE if the headers were terminated by '.' and FALSE otherwise. */ - if (message_id[0] == 0) exim_exit(EXIT_FAILURE); + if (message_id[0] == 0) exim_exit(EXIT_FAILURE, US"main"); } /* Non-SMTP message reception */ /* If this is a filter testing run, there are headers in store, but @@ -5649,7 +5611,7 @@ while (more) if (chdir("/")) /* Get away from wherever the user is running this from */ { DEBUG(D_receive) debug_printf("chdir(\"/\") failed\n"); - exim_exit(EXIT_FAILURE); + exim_exit(EXIT_FAILURE, US"main"); } /* Now we run either a system filter test, or a user filter test, or both. @@ -5658,20 +5620,16 @@ while (more) explicitly. */ if ((filter_test & FTEST_SYSTEM) != 0) - { if (!filter_runtest(filter_sfd, filter_test_sfile, TRUE, more)) - exim_exit(EXIT_FAILURE); - } + exim_exit(EXIT_FAILURE, US"main"); memcpy(filter_sn, filter_n, sizeof(filter_sn)); if ((filter_test & FTEST_USER) != 0) - { if (!filter_runtest(filter_ufd, filter_test_ufile, FALSE, more)) - exim_exit(EXIT_FAILURE); - } + exim_exit(EXIT_FAILURE, US"main"); - exim_exit(EXIT_SUCCESS); + exim_exit(EXIT_SUCCESS, US"main"); } /* Else act on the result of message reception. We should not get here unless @@ -5797,7 +5755,7 @@ while (more) log_write(0, LOG_MAIN|LOG_PANIC, "process %d crashed with signal %d while delivering %s", (int)pid, status & 0x00ff, message_id); - if (mua_wrapper && (status & 0xffff) != 0) exim_exit(EXIT_FAILURE); + if (mua_wrapper && (status & 0xffff) != 0) exim_exit(EXIT_FAILURE, US"main"); } } } @@ -5829,54 +5787,9 @@ moreloop: store_reset(reset_point); } -exim_exit(EXIT_SUCCESS); /* Never returns */ +exim_exit(EXIT_SUCCESS, US"main"); /* Never returns */ return 0; /* To stop compiler warning */ } -/************************************************* -* read as much as requested * -*************************************************/ - -/* The syscall read(2) doesn't always returns as much as we want. For -several reasons it might get less. (Not talking about signals, as syscalls -are restartable). When reading from a network or pipe connection the sender -might send in smaller chunks, with delays between these chunks. The read(2) -may return such a chunk. - -The more the writer writes and the smaller the pipe between write and read is, -the more we get the chance of reading leass than requested. (See bug 2130) - -This function read(2)s until we got all the data we *requested*. - -Note: This function may block. Use it only if you're sure about the -amount of data you will get. - -Argument: - fd the file descriptor to read from - buffer pointer to a buffer of size len - len the requested(!) amount of bytes - -Returns: the amount of bytes read -*/ -ssize_t -readn(int fd, void *buffer, size_t len) -{ - void *next = buffer; - void *end = buffer + len; - - while (next < end) - { - ssize_t got = read(fd, next, end - next); - - /* I'm not sure if there are signals that can interrupt us, - for now I assume the worst */ - if (got == -1 && errno == EINTR) continue; - if (got <= 0) return next - buffer; - next += got; - } - - return len; -} - /* End of exim.c */