*************************************************/
/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
}
static void
-function_dummy_free(void *block) { block = block; }
+function_dummy_free(void * block) {}
static void *
function_store_malloc(size_t size)
}
static void
-function_store_free(void *block)
+function_store_free(void * block)
{
store_free(block);
}
}
+/***********************************************
+* Handler for SIGSEGV *
+***********************************************/
+
+static void
+segv_handler(int sig)
+{
+log_write(0, LOG_MAIN|LOG_PANIC, "SIGSEGV (maybe attempt to write to immutable memory)");
+signal(SIGSEGV, SIG_DFL);
+kill(getpid(), sig);
+}
+
+
/*************************************************
* Handler for SIGUSR1 *
*************************************************/
os_restarting_signal(sig, usr1_handler);
-if ((fd = Uopen(process_log_path, O_APPEND|O_WRONLY, LOG_MODE)) < 0)
- {
- /* If we are already running as the Exim user, try to create it in the
- current process (assuming spool_directory exists). Otherwise, if we are
- root, do the creation in an exim:exim subprocess. */
-
- int euid = geteuid();
- if (euid == exim_uid)
- fd = Uopen(process_log_path, O_CREAT|O_APPEND|O_WRONLY, LOG_MODE);
- else if (euid == root_uid)
- fd = log_create_as_exim(process_log_path);
- }
+if (!process_log_path) return;
+fd = log_open_as_exim(process_log_path);
/* If we are neither exim nor root, or if we failed to create the log file,
give up. There is not much useful we can do with errors, since we don't want
void
sigalrm_handler(int sig)
{
-sig = sig; /* Keep picky compilers happy */
sigalrm_seen = TRUE;
os_non_restarting_signal(SIGALRM, sigalrm_handler);
}
{
sigset_t sigmask;
sigset_t old_sigmask;
+int save_errno = errno;
if (itval->it_value.tv_usec < 50 && itval->it_value.tv_sec == 0)
return;
(void)sigdelset(&sigmask, SIGALRM); /* Remove SIGALRM */
(void)sigsuspend(&sigmask); /* Until SIGALRM */
(void)sigprocmask(SIG_SETMASK, &old_sigmask, NULL); /* Restore mask */
+errno = save_errno;
+sigalrm_seen = FALSE;
}
void
millisleep(int msec)
{
-struct itimerval itval;
-itval.it_interval.tv_sec = 0;
-itval.it_interval.tv_usec = 0;
-itval.it_value.tv_sec = msec/1000;
-itval.it_value.tv_usec = (msec % 1000) * 1000;
+struct itimerval itval = {.it_interval = {.tv_sec = 0, .tv_usec = 0},
+ .it_value = {.tv_sec = msec/1000,
+ .tv_usec = (msec % 1000) * 1000}};
milliwait(&itval);
}
*************************************************/
#ifdef _POSIX_MONOTONIC_CLOCK
-/* Amount CLOCK_MONOTONIC is behind realtime, at startup. */
+# ifdef CLOCK_BOOTTIME
+# define EXIM_CLOCKTYPE CLOCK_BOOTTIME
+# else
+# define EXIM_CLOCKTYPE CLOCK_MONOTONIC
+# endif
+
+/* Amount EXIM_CLOCK is behind realtime, at startup. */
static struct timespec offset_ts;
static void
exim_clock_init(void)
{
struct timeval tv;
-if (clock_gettime(CLOCK_MONOTONIC, &offset_ts) != 0) return;
+if (clock_gettime(EXIM_CLOCKTYPE, &offset_ts) != 0) return;
(void)gettimeofday(&tv, NULL);
offset_ts.tv_sec = tv.tv_sec - offset_ts.tv_sec;
offset_ts.tv_nsec = tv.tv_usec * 1000 - offset_ts.tv_nsec;
#endif
+void
+exim_gettime(struct timeval * tv)
+{
+#ifdef _POSIX_MONOTONIC_CLOCK
+struct timespec now_ts;
+
+if (clock_gettime(EXIM_CLOCKTYPE, &now_ts) == 0)
+ {
+ now_ts.tv_sec += offset_ts.tv_sec;
+ if ((now_ts.tv_nsec += offset_ts.tv_nsec) >= 1000*1000*1000)
+ {
+ now_ts.tv_sec++;
+ now_ts.tv_nsec -= 1000*1000*1000;
+ }
+ tv->tv_sec = now_ts.tv_sec;
+ tv->tv_usec = now_ts.tv_nsec / 1000;
+ }
+else
+#endif
+ (void)gettimeofday(tv, NULL);
+}
+
+
/* Exim uses a time + a pid to generate a unique identifier in two places: its
message IDs, and in file names for maildir deliveries. Because some OS now
re-use pids within the same second, sub-second times are now being used.
clocks that go backwards.
Arguments:
- tgt_tv A timeval which was used to create uniqueness; its usec field
+ prev_tv A timeval which was used to create uniqueness; its usec field
has been rounded down to the value of the resolution.
We want to be sure the current time is greater than this.
+ On return, updated to current (rounded down).
resolution The resolution that was used to divide the microseconds
(1 for maildir, larger for message ids)
*/
void
-exim_wait_tick(struct timeval * tgt_tv, int resolution)
+exim_wait_tick(struct timeval * prev_tv, int resolution)
{
struct timeval now_tv;
long int now_true_usec;
-#ifdef _POSIX_MONOTONIC_CLOCK
-struct timespec now_ts;
-
-if (clock_gettime(CLOCK_MONOTONIC, &now_ts) == 0)
- {
- now_ts.tv_sec += offset_ts.tv_sec;
- if ((now_ts.tv_nsec += offset_ts.tv_nsec) >= 1000*1000*1000)
- {
- now_ts.tv_sec++;
- now_ts.tv_nsec -= 1000*1000*1000;
- }
- now_tv.tv_sec = now_ts.tv_sec;
- now_true_usec = (now_ts.tv_nsec / (resolution * 1000)) * resolution;
- now_tv.tv_usec = now_true_usec;
- }
-else
-#endif
- {
- (void)gettimeofday(&now_tv, NULL);
- now_true_usec = now_tv.tv_usec;
- now_tv.tv_usec = (now_true_usec/resolution) * resolution;
- }
+exim_gettime(&now_tv);
+now_true_usec = now_tv.tv_usec;
+now_tv.tv_usec = (now_true_usec/resolution) * resolution;
-while (exim_tvcmp(&now_tv, tgt_tv) <= 0)
+while (exim_tvcmp(&now_tv, prev_tv) <= 0)
{
struct itimerval itval;
itval.it_interval.tv_sec = 0;
itval.it_interval.tv_usec = 0;
- itval.it_value.tv_sec = tgt_tv->tv_sec - now_tv.tv_sec;
- itval.it_value.tv_usec = tgt_tv->tv_usec + resolution - now_true_usec;
+ itval.it_value.tv_sec = prev_tv->tv_sec - now_tv.tv_sec;
+ itval.it_value.tv_usec = prev_tv->tv_usec + resolution - now_true_usec;
/* We know that, overall, "now" is less than or equal to "then". Therefore, a
negative value for the microseconds is possible only in the case when "now"
if (!f.running_in_test_harness)
{
debug_printf("tick check: " TIME_T_FMT ".%06lu " TIME_T_FMT ".%06lu\n",
- tgt_tv->tv_sec, (long) tgt_tv->tv_usec,
+ prev_tv->tv_sec, (long) prev_tv->tv_usec,
now_tv.tv_sec, (long) now_tv.tv_usec);
debug_printf("waiting " TIME_T_FMT ".%06lu sec\n",
itval.it_value.tv_sec, (long) itval.it_value.tv_usec);
/* Be prapared to go around if the kernel does not implement subtick
granularity (GNU Hurd) */
- (void)gettimeofday(&now_tv, NULL);
+ exim_gettime(&now_tv);
now_true_usec = now_tv.tv_usec;
now_tv.tv_usec = (now_true_usec/resolution) * resolution;
}
+*prev_tv = now_tv;
}
{
if (devnull < 0) devnull = open("/dev/null", O_RDWR);
if (devnull < 0) log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s",
- string_open_failed(errno, "/dev/null", NULL));
+ string_open_failed("/dev/null", NULL));
if (devnull != i) (void)dup2(devnull, i);
}
}
*/
void
-exim_exit(int rc, const uschar * process)
+exim_exit(int rc)
{
search_tidyup();
store_exit();
DEBUG(D_any)
- debug_printf(">>>>>>>>>>>>>>>> Exim pid=%d %s%s%sterminating with rc=%d "
- ">>>>>>>>>>>>>>>>\n", (int)getpid(),
- process ? "(" : "", process, process ? ") " : "", rc);
+ debug_printf(">>>>>>>>>>>>>>>> Exim pid=%d (%s) terminating with rc=%d "
+ ">>>>>>>>>>>>>>>>\n",
+ (int)getpid(), process_purpose, rc);
exit(rc);
}
exim_underbar_exit(int rc)
{
store_exit();
+DEBUG(D_any)
+ debug_printf(">>>>>>>>>>>>>>>> Exim pid=%d (%s) terminating with rc=%d "
+ ">>>>>>>>>>>>>>>>\n",
+ (int)getpid(), process_purpose, rc);
_exit(rc);
}
exit(EXIT_FAILURE);
}
+/* fail if a length is too long */
+static inline void
+exim_len_fail_toolong(int itemlen, int maxlen, const char *description)
+{
+if (itemlen <= maxlen)
+ return;
+fprintf(stderr, "exim: length limit exceeded (%d > %d) for: %s\n",
+ itemlen, maxlen, description);
+exit(EXIT_FAILURE);
+}
+
+/* only pass through the string item back to the caller if it's short enough */
+static inline const uschar *
+exim_str_fail_toolong(const uschar *item, int maxlen, const char *description)
+{
+exim_len_fail_toolong(Ustrlen(item), maxlen, description);
+return item;
+}
+
/* exim_chown_failure() called from exim_chown()/exim_fchown() on failure
of chown()/fchown(). See src/functions.h for more explanation */
int
uschar *parse_error = NULL;
uschar *address = parse_extract_address(s, &parse_error, &start, &end, &domain,
FALSE);
-if (address == NULL)
+if (!address)
{
fprintf(stdout, "syntax error: %s\n", parse_error);
*exit_value = 2;
static void
show_whats_supported(FILE * fp)
{
+rmark reset_point = store_mark();
+gstring * g;
DEBUG(D_any) {} else show_db_version(fp);
-fprintf(fp, "Support for:");
+g = string_cat(NULL, US"Support for:");
#ifdef SUPPORT_CRYPTEQ
- fprintf(fp, " crypteq");
+ g = string_cat(g, US" crypteq");
#endif
#if HAVE_ICONV
- fprintf(fp, " iconv()");
+ g = string_cat(g, US" iconv()");
#endif
#if HAVE_IPV6
- fprintf(fp, " IPv6");
+ g = string_cat(g, US" IPv6");
#endif
#ifdef HAVE_SETCLASSRESOURCES
- fprintf(fp, " use_setclassresources");
+ g = string_cat(g, US" use_setclassresources");
#endif
#ifdef SUPPORT_PAM
- fprintf(fp, " PAM");
+ g = string_cat(g, US" PAM");
#endif
#ifdef EXIM_PERL
- fprintf(fp, " Perl");
+ g = string_cat(g, US" Perl");
#endif
#ifdef EXPAND_DLFUNC
- fprintf(fp, " Expand_dlfunc");
+ g = string_cat(g, US" Expand_dlfunc");
#endif
#ifdef USE_TCP_WRAPPERS
- fprintf(fp, " TCPwrappers");
+ g = string_cat(g, US" TCPwrappers");
#endif
#ifdef USE_GNUTLS
- fprintf(fp, " GnuTLS");
+ g = string_cat(g, US" GnuTLS");
#endif
#ifdef USE_OPENSSL
- fprintf(fp, " OpenSSL");
+ g = string_cat(g, US" OpenSSL");
+#endif
+#ifndef DISABLE_TLS_RESUME
+ g = string_cat(g, US" TLS_resume");
#endif
#ifdef SUPPORT_TRANSLATE_IP_ADDRESS
- fprintf(fp, " translate_ip_address");
+ g = string_cat(g, US" translate_ip_address");
#endif
#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
- fprintf(fp, " move_frozen_messages");
+ g = string_cat(g, US" move_frozen_messages");
#endif
#ifdef WITH_CONTENT_SCAN
- fprintf(fp, " Content_Scanning");
+ g = string_cat(g, US" Content_Scanning");
#endif
#ifdef SUPPORT_DANE
- fprintf(fp, " DANE");
+ g = string_cat(g, US" DANE");
#endif
#ifndef DISABLE_DKIM
- fprintf(fp, " DKIM");
+ g = string_cat(g, US" DKIM");
+#endif
+#ifdef SUPPORT_DMARC
+ g = string_cat(g, US" DMARC");
#endif
#ifndef DISABLE_DNSSEC
- fprintf(fp, " DNSSEC");
+ g = string_cat(g, US" DNSSEC");
#endif
#ifndef DISABLE_EVENT
- fprintf(fp, " Event");
+ g = string_cat(g, US" Event");
#endif
#ifdef SUPPORT_I18N
- fprintf(fp, " I18N");
+ g = string_cat(g, US" I18N");
#endif
#ifndef DISABLE_OCSP
- fprintf(fp, " OCSP");
+ g = string_cat(g, US" OCSP");
#endif
#ifndef DISABLE_PIPE_CONNECT
- fprintf(fp, " PIPE_CONNECT");
+ g = string_cat(g, US" PIPE_CONNECT");
#endif
#ifndef DISABLE_PRDR
- fprintf(fp, " PRDR");
+ g = string_cat(g, US" PRDR");
#endif
#ifdef SUPPORT_PROXY
- fprintf(fp, " PROXY");
+ g = string_cat(g, US" PROXY");
+#endif
+#ifndef DISABLE_QUEUE_RAMP
+ g = string_cat(g, US" Experimental_Queue_Ramp");
#endif
#ifdef SUPPORT_SOCKS
- fprintf(fp, " SOCKS");
+ g = string_cat(g, US" SOCKS");
#endif
#ifdef SUPPORT_SPF
- fprintf(fp, " SPF");
+ g = string_cat(g, US" SPF");
#endif
-#ifdef SUPPORT_DMARC
- fprintf(fp, " DMARC");
+#if defined(SUPPORT_SRS)
+ g = string_cat(g, US" SRS");
#endif
#ifdef TCP_FASTOPEN
tcp_init();
- if (f.tcp_fastopen_ok) fprintf(fp, " TCP_Fast_Open");
-#endif
-#ifdef EXPERIMENTAL_LMDB
- fprintf(fp, " Experimental_LMDB");
-#endif
-#ifdef EXPERIMENTAL_QUEUEFILE
- fprintf(fp, " Experimental_QUEUEFILE");
-#endif
-#if defined(EXPERIMENTAL_SRS) || defined(EXPERIMENTAL_SRS_NATIVE)
- fprintf(fp, " Experimental_SRS");
+ if (f.tcp_fastopen_ok) g = string_cat(g, US" TCP_Fast_Open");
#endif
#ifdef EXPERIMENTAL_ARC
- fprintf(fp, " Experimental_ARC");
+ g = string_cat(g, US" Experimental_ARC");
#endif
#ifdef EXPERIMENTAL_BRIGHTMAIL
- fprintf(fp, " Experimental_Brightmail");
+ g = string_cat(g, US" Experimental_Brightmail");
#endif
#ifdef EXPERIMENTAL_DCC
- fprintf(fp, " Experimental_DCC");
+ g = string_cat(g, US" Experimental_DCC");
#endif
#ifdef EXPERIMENTAL_DSN_INFO
- fprintf(fp, " Experimental_DSN_info");
+ g = string_cat(g, US" Experimental_DSN_info");
+#endif
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+ g = string_cat(g, US" Experimental_ESMTP_Limits");
#endif
-#ifdef EXPERIMENTAL_TLS_RESUME
- fprintf(fp, " Experimental_TLS_resume");
+#ifdef EXPERIMENTAL_QUEUEFILE
+ g = string_cat(g, US" Experimental_QUEUEFILE");
+#endif
+#if defined(EXPERIMENTAL_SRS_ALT)
+ g = string_cat(g, US" Experimental_SRS");
#endif
-fprintf(fp, "\n");
+g = string_cat(g, US"\n");
-fprintf(fp, "Lookups (built-in):");
+g = string_cat(g, US"Lookups (built-in):");
#if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2
- fprintf(fp, " lsearch wildlsearch nwildlsearch iplsearch");
+ g = string_cat(g, US" lsearch wildlsearch nwildlsearch iplsearch");
#endif
#if defined(LOOKUP_CDB) && LOOKUP_CDB!=2
- fprintf(fp, " cdb");
+ g = string_cat(g, US" cdb");
#endif
#if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
- fprintf(fp, " dbm dbmjz dbmnz");
+ g = string_cat(g, US" dbm dbmjz dbmnz");
#endif
#if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
- fprintf(fp, " dnsdb");
+ g = string_cat(g, US" dnsdb");
#endif
#if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
- fprintf(fp, " dsearch");
+ g = string_cat(g, US" dsearch");
#endif
#if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
- fprintf(fp, " ibase");
+ g = string_cat(g, US" ibase");
#endif
#if defined(LOOKUP_JSON) && LOOKUP_JSON!=2
- fprintf(fp, " json");
+ g = string_cat(g, US" json");
#endif
#if defined(LOOKUP_LDAP) && LOOKUP_LDAP!=2
- fprintf(fp, " ldap ldapdn ldapm");
+ g = string_cat(g, US" ldap ldapdn ldapm");
#endif
-#ifdef EXPERIMENTAL_LMDB
- fprintf(fp, " lmdb");
+#ifdef LOOKUP_LMDB
+ g = string_cat(g, US" lmdb");
#endif
#if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
- fprintf(fp, " mysql");
+ g = string_cat(g, US" mysql");
#endif
#if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
- fprintf(fp, " nis nis0");
+ g = string_cat(g, US" nis nis0");
#endif
#if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
- fprintf(fp, " nisplus");
+ g = string_cat(g, US" nisplus");
#endif
#if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
- fprintf(fp, " oracle");
+ g = string_cat(g, US" oracle");
#endif
#if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
- fprintf(fp, " passwd");
+ g = string_cat(g, US" passwd");
#endif
#if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
- fprintf(fp, " pgsql");
+ g = string_cat(g, US" pgsql");
#endif
#if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2
- fprintf(fp, " redis");
+ g = string_cat(g, US" redis");
#endif
#if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
- fprintf(fp, " sqlite");
+ g = string_cat(g, US" sqlite");
#endif
#if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
- fprintf(fp, " testdb");
+ g = string_cat(g, US" testdb");
#endif
#if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2
- fprintf(fp, " whoson");
+ g = string_cat(g, US" whoson");
#endif
-fprintf(fp, "\n");
+g = string_cat(g, US"\n");
-auth_show_supported(fp);
-route_show_supported(fp);
-transport_show_supported(fp);
+g = auth_show_supported(g);
+g = route_show_supported(g);
+g = transport_show_supported(g);
#ifdef WITH_CONTENT_SCAN
-malware_show_supported(fp);
+g = malware_show_supported(g);
#endif
if (fixed_never_users[0] > 0)
{
int i;
- fprintf(fp, "Fixed never_users: ");
+ g = string_cat(g, US"Fixed never_users: ");
for (i = 1; i <= (int)fixed_never_users[0] - 1; i++)
- fprintf(fp, "%d:", (unsigned int)fixed_never_users[i]);
- fprintf(fp, "%d\n", (unsigned int)fixed_never_users[i]);
+ string_fmt_append(g, "%u:", (unsigned)fixed_never_users[i]);
+ g = string_fmt_append(g, "%u\n", (unsigned)fixed_never_users[i]);
}
-fprintf(fp, "Configure owner: %d:%d\n", config_uid, config_gid);
+g = string_fmt_append(g, "Configure owner: %d:%d\n", config_uid, config_gid);
+fputs(CS string_from_gstring(g), fp);
fprintf(fp, "Size of off_t: " SIZE_T_FMT "\n", sizeof(off_t));
#ifdef SUPPORT_I18N
utf8_version_report(fp);
#endif
+#ifdef SUPPORT_DMARC
+ dmarc_version_report(fp);
+#endif
#ifdef SUPPORT_SPF
spf_lib_version_report(fp);
#endif
#endif
} while (0);
+store_reset(reset_point);
}
*/
static void
-expansion_test_line(uschar * line)
+expansion_test_line(const uschar * line)
{
int len;
BOOL dummy_macexp;
+uschar * s;
Ustrncpy(big_buffer, line, big_buffer_size);
big_buffer[big_buffer_size-1] = '\0';
printf("Defined macro '%s'\n", mlast->name);
}
else
- if ((line = expand_string(big_buffer))) printf("%s\n", CS line);
+ if ((s = expand_string(big_buffer))) printf("%s\n", CS s);
else printf("Failed: %s\n", expand_string_message);
}
BOOL list_options = FALSE;
BOOL list_config = FALSE;
BOOL local_queue_only;
-BOOL more = TRUE;
BOOL one_msg_action = FALSE;
BOOL opt_D_used = FALSE;
BOOL queue_only_set = FALSE;
BOOL usage_wanted = FALSE;
BOOL verify_address_mode = FALSE;
BOOL verify_as_sender = FALSE;
+BOOL rcpt_verify_quota = FALSE;
BOOL version_printed = FALSE;
uschar *alias_arg = NULL;
uschar *called_as = US"";
uschar *start_queue_run_id = NULL;
uschar *stop_queue_run_id = NULL;
uschar *expansion_test_message = NULL;
-uschar *ftest_domain = NULL;
-uschar *ftest_localpart = NULL;
-uschar *ftest_prefix = NULL;
-uschar *ftest_suffix = NULL;
+const uschar *ftest_domain = NULL;
+const uschar *ftest_localpart = NULL;
+const uschar *ftest_prefix = NULL;
+const uschar *ftest_suffix = NULL;
uschar *log_oneline = NULL;
uschar *malware_test_file = NULL;
uschar *real_sender_address;
uschar *originator_home = US"/";
size_t sz;
-rmark reset_point;
struct passwd *pw;
struct stat statbuf;
(void)gettimeofday(×tamp_startup, NULL);
#endif
+store_init(); /* Initialise the memory allocation susbsystem */
+
/* If the Exim user and/or group and/or the configuration file owner/group were
defined by ref:name at build time, we must now find the actual uid/gid values.
This is a feature to make the lives of binary distributors easier. */
if (f.running_in_test_harness)
debug_store = TRUE;
+/* Protect against abusive argv[0] */
+exim_str_fail_toolong(argv[0], PATH_MAX, "argv[0]");
+
/* The C standard says that the equivalent of setlocale(LC_ALL, "C") is obeyed
at the start of a program; however, it seems that some environments do not
follow this. A "strange" locale can affect the formatting of timestamps, so we
setlocale(LC_ALL, "C");
-/* Get the offset between CLOCK_MONOTONIC and wallclock */
+/* Get the offset between CLOCK_MONOTONIC/CLOCK_BOOTTIME and wallclock */
#ifdef _POSIX_MONOTONIC_CLOCK
exim_clock_init();
process_info = store_get(PROCESS_INFO_SIZE, TRUE); /* tainted */
set_process_info("initializing");
-os_restarting_signal(SIGUSR1, usr1_handler);
+os_restarting_signal(SIGUSR1, usr1_handler); /* exiwhat */
+signal(SIGSEGV, segv_handler); /* log faults */
/* If running in a dockerized environment, the TERM signal is only
delegated to the PID 1 if we request it by setting an signal handler */
unprivileged = (real_uid != root_uid && original_euid != root_uid);
+/* For most of the args-parsing we need to use permanent pool memory */
+ {
+ int old_pool = store_pool;
+ store_pool = POOL_PERM;
+
/* Scan the program's arguments. Some can be dealt with right away; others are
simply recorded for checking and handling afterwards. Do a high-level switch
on the second character (the one after '-'), to save some effort. */
-for (i = 1; i < argc; i++)
+ for (i = 1; i < argc; i++)
{
BOOL badarg = FALSE;
- uschar *arg = argv[i];
- uschar *argrest;
+ uschar * arg = argv[i];
+ uschar * argrest;
int switchchar;
/* An argument not starting with '-' is the start of a recipients list;
/* sendmail uses -Ac and -Am to control which .cf file is used;
we ignore them. */
case 'A':
- if (*argrest == '\0') { badarg = TRUE; break; }
+ if (!*argrest) { badarg = TRUE; break; }
else
{
BOOL ignore = FALSE;
/* -bF: Run system filter test */
case 'F':
filter_test |= checking = FTEST_SYSTEM;
- if (*argrest) { badarg = TRUE; break; }
- if (++i < argc) filter_test_sfile = argv[i]; else
- exim_fail("exim: file name expected after %s\n", argv[i-1]);
+ if (*argrest) badarg = TRUE;
+ else if (++i < argc) filter_test_sfile = argv[i];
+ else exim_fail("exim: file name expected after %s\n", argv[i-1]);
break;
/* -bf: Run user filter test
{
if (++i >= argc)
exim_fail("exim: string expected after %s\n", arg);
- if (Ustrcmp(argrest, "d") == 0) ftest_domain = argv[i];
- else if (Ustrcmp(argrest, "l") == 0) ftest_localpart = argv[i];
- else if (Ustrcmp(argrest, "p") == 0) ftest_prefix = argv[i];
- else if (Ustrcmp(argrest, "s") == 0) ftest_suffix = argv[i];
+ if (Ustrcmp(argrest, "d") == 0) ftest_domain = exim_str_fail_toolong(argv[i], EXIM_DOMAINNAME_MAX, "-bfd");
+ else if (Ustrcmp(argrest, "l") == 0) ftest_localpart = exim_str_fail_toolong(argv[i], EXIM_LOCALPART_MAX, "-bfl");
+ else if (Ustrcmp(argrest, "p") == 0) ftest_prefix = exim_str_fail_toolong(argv[i], EXIM_LOCALPART_MAX, "-bfp");
+ else if (Ustrcmp(argrest, "s") == 0) ftest_suffix = exim_str_fail_toolong(argv[i], EXIM_LOCALPART_MAX, "-bfs");
else badarg = TRUE;
}
break;
if (!*argrest || Ustrcmp(argrest, "c") == 0)
{
if (++i >= argc) { badarg = TRUE; break; }
- sender_host_address = argv[i];
+ sender_host_address = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_IPADDR_MAX, "-bh"), TRUE);
host_checking = checking = f.log_testing_mode = TRUE;
f.host_checking_callout = *argrest == 'c';
message_logs = FALSE;
concept of *the* alias file, but since Sun's YP make script calls
sendmail this way, some support must be provided. */
case 'i':
- if (!*++argrest) bi_option = TRUE;
+ if (!*argrest) bi_option = TRUE;
else badarg = TRUE;
break;
case 'P':
/* -bP config: we need to setup here, because later,
- * when list_options is checked, the config is read already */
+ when list_options is checked, the config is read already */
if (*argrest)
badarg = TRUE;
else if (argv[i+1] && Ustrcmp(argv[i+1], "config") == 0)
a change! Enforce a prefix check if required. */
case 'C':
- if (*argrest == 0)
- {
- if(++i < argc) argrest = argv[i]; else
- { badarg = TRUE; break; }
- }
+ if (!*argrest)
+ if (++i < argc) argrest = argv[i]; else { badarg = TRUE; break; }
if (Ustrcmp(config_main_filelist, argrest) != 0)
{
#ifdef ALT_CONFIG_PREFIX
int len = Ustrlen(ALT_CONFIG_PREFIX);
const uschar *list = argrest;
uschar *filename;
+ /* The argv is untainted, so big_buffer (also untainted) is ok to use */
while((filename = string_nextinlist(&list, &sep, big_buffer,
- big_buffer_size)) != NULL)
- {
- if ((Ustrlen(filename) < len ||
- Ustrncmp(filename, ALT_CONFIG_PREFIX, len) != 0 ||
- Ustrstr(filename, "/../") != NULL) &&
- (Ustrcmp(filename, "/dev/null") != 0 || real_uid != root_uid))
+ big_buffer_size)))
+ if ( ( Ustrlen(filename) < len
+ || Ustrncmp(filename, ALT_CONFIG_PREFIX, len) != 0
+ || Ustrstr(filename, "/../") != NULL
+ )
+ && (Ustrcmp(filename, "/dev/null") != 0 || real_uid != root_uid)
+ )
exim_fail("-C Permission denied\n");
- }
#endif
if (real_uid != root_uid)
{
else
{
/* Well, the trust list at least is up to scratch... */
- rmark reset_point = store_mark();
+ rmark reset_point;
uschar *trusted_configs[32];
int nr_configs = 0;
int i = 0;
+ int old_pool = store_pool;
+ store_pool = POOL_MAIN;
+ reset_point = store_mark();
while (Ufgets(big_buffer, big_buffer_size, trust_list))
{
uschar *start = big_buffer, *nl;
if (nl)
*nl = 0;
trusted_configs[nr_configs++] = string_copy(start);
- if (nr_configs == 32)
+ if (nr_configs == nelem(trusted_configs))
break;
}
fclose(trust_list);
const uschar *list = argrest;
uschar *filename;
while (f.trusted_config && (filename = string_nextinlist(&list,
- &sep, big_buffer, big_buffer_size)) != NULL)
+ &sep, big_buffer, big_buffer_size)))
{
for (i=0; i < nr_configs; i++)
if (Ustrcmp(filename, trusted_configs[i]) == 0)
else /* No valid prefixes found in trust_list file. */
f.trusted_config = FALSE;
store_reset(reset_point);
+ store_pool = old_pool;
}
}
else /* Could not open trust_list file. */
f.debug_daemon = TRUE;
argrest++;
}
- if (*argrest != 0)
+ if (*argrest)
decode_bits(&selector, 1, debug_notall, argrest,
debug_options, debug_options_count, US"debug", 0);
debug_selector = selector;
the -F or be in the next argument. */
case 'F':
- if (*argrest == 0)
- {
- if(++i < argc) argrest = argv[i]; else
- { badarg = TRUE; break; }
- }
- originator_name = argrest;
+ if (!*argrest)
+ if (++i < argc) argrest = argv[i]; else { badarg = TRUE; break; }
+ originator_name = string_copy_taint(exim_str_fail_toolong(argrest, EXIM_HUMANNAME_MAX, "-F"), TRUE);
f.sender_name_forced = TRUE;
break;
{
int dummy_start, dummy_end;
uschar *errmess;
- if (*argrest == 0)
- {
- if (i+1 < argc) argrest = argv[++i]; else
- { badarg = TRUE; break; }
- }
- if (*argrest == 0)
+ if (!*argrest)
+ if (i+1 < argc) argrest = argv[++i]; else { badarg = TRUE; break; }
+ (void) exim_str_fail_toolong(argrest, EXIM_DISPLAYMAIL_MAX, "-f");
+ if (!*argrest)
*(sender_address = store_get(1, FALSE)) = '\0'; /* Ensure writeable memory */
else
{
- uschar *temp = argrest + Ustrlen(argrest) - 1;
+ uschar * temp = argrest + Ustrlen(argrest) - 1;
while (temp >= argrest && isspace(*temp)) temp--;
if (temp >= argrest && *temp == '.') f_end_dot = TRUE;
allow_domain_literals = TRUE;
#ifdef SUPPORT_I18N
allow_utf8_domains = TRUE;
#endif
- sender_address = parse_extract_address(argrest, &errmess,
- &dummy_start, &dummy_end, &sender_address_domain, TRUE);
+ if (!(sender_address = parse_extract_address(argrest, &errmess,
+ &dummy_start, &dummy_end, &sender_address_domain, TRUE)))
+ exim_fail("exim: bad -f address \"%s\": %s\n", argrest, errmess);
+
sender_address = string_copy_taint(sender_address, TRUE);
#ifdef SUPPORT_I18N
message_smtputf8 = string_is_utf8(sender_address);
#endif
allow_domain_literals = FALSE;
strip_trailing_dot = FALSE;
- if (!sender_address)
- exim_fail("exim: bad -f address \"%s\": %s\n", argrest, errmess);
}
f.sender_address_forced = TRUE;
}
To put it in will require a change to the spool header file format. */
case 'h':
- if (*argrest == 0)
- {
- if(++i < argc) argrest = argv[i]; else
- { badarg = TRUE; break; }
- }
+ if (!*argrest)
+ if (++i < argc) argrest = argv[i]; else { badarg = TRUE; break; }
if (!isdigit(*argrest)) badarg = TRUE;
break;
not to be documented for sendmail but mailx (at least) uses it) */
case 'i':
- if (*argrest == 0) f.dot_ends = FALSE; else badarg = TRUE;
+ if (!*argrest) f.dot_ends = FALSE; else badarg = TRUE;
break;
syslog_processname in the config file, but needs to be an admin option. */
case 'L':
- if (*argrest == '\0')
- {
- if(++i < argc) argrest = argv[i]; else
- { badarg = TRUE; break; }
- }
+ if (!*argrest)
+ if (++i < argc) argrest = argv[i]; else { badarg = TRUE; break; }
if ((sz = Ustrlen(argrest)) > 32)
exim_fail("exim: the -L syslog name is too long: \"%s\"\n", argrest);
if (sz < 1)
exim_fail("exim: the -L syslog name is too short\n");
- cmdline_syslog_name = argrest;
+ cmdline_syslog_name = string_copy_taint(argrest, TRUE);
break;
case 'M':
if (msg_action_arg >= 0)
exim_fail("exim: incompatible arguments\n");
- continue_transport = argv[++i];
- continue_hostname = argv[++i];
- continue_host_address = argv[++i];
+ continue_transport = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_DRIVERNAME_MAX, "-C internal transport"), TRUE);
+ continue_hostname = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_HOSTNAME_MAX, "-C internal hostname"), TRUE);
+ continue_host_address = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_IPADDR_MAX, "-C internal hostaddr"), TRUE);
continue_sequence = Uatoi(argv[++i]);
msg_action = MSG_DELIVER;
msg_action_arg = ++i;
case 'D': smtp_peer_options |= OPTION_DSN; break;
- /* -MCG: set the queue name, to a non-default value */
+ /* -MCd: for debug, set a process-purpose string */
+
+ case 'd': if (++i < argc)
+ process_purpose = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_DRIVERNAME_MAX, "-MCd"), TRUE);
+ else badarg = TRUE;
+ break;
- case 'G': if (++i < argc) queue_name = string_copy(argv[i]);
+ /* -MCG: set the queue name, to a non-default value. Arguably, anything
+ from the commandline should be tainted - but we will need an untainted
+ value for the spoolfile when doing a -odi delivery process. */
+
+ case 'G': if (++i < argc) queue_name = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_DRIVERNAME_MAX, "-MCG"), FALSE);
else badarg = TRUE;
break;
case 'K': smtp_peer_options |= OPTION_CHUNKING; break;
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+ /* -MCL: peer used LIMITS RCPTMAX and/or RCPTDOMAINMAX */
+ case 'L': if (++i < argc) continue_limit_mail = Uatoi(argv[i]);
+ else badarg = TRUE;
+ if (++i < argc) continue_limit_rcpt = Uatoi(argv[i]);
+ else badarg = TRUE;
+ if (++i < argc) continue_limit_rcptdom = Uatoi(argv[i]);
+ else badarg = TRUE;
+ break;
+#endif
+
/* -MCP: set the smtp_use_pipelining flag; this is useful only when
it preceded -MC (see above) */
case 'P': smtp_peer_options |= OPTION_PIPE; break;
+#ifdef SUPPORT_SOCKS
+ /* -MCp: Socks proxy in use; nearside IP, port, external IP, port */
+ case 'p': proxy_session = TRUE;
+ if (++i < argc)
+ {
+ proxy_local_address = string_copy_taint(argv[i], TRUE);
+ if (++i < argc)
+ {
+ proxy_local_port = Uatoi(argv[i]);
+ if (++i < argc)
+ {
+ proxy_external_address = string_copy_taint(argv[i], TRUE);
+ if (++i < argc)
+ {
+ proxy_external_port = Uatoi(argv[i]);
+ break;
+ } } } }
+ badarg = TRUE;
+ break;
+#endif
/* -MCQ: pass on the pid of the queue-running process that started
this chain of deliveries and the fd of its synchronizing pipe; this
is useful only when it precedes -MC (see above) */
else badarg = TRUE;
break;
+ /* -MCq: do a quota check on the given recipient for the given size
+ of message. Separate from -MC. */
+ case 'q': rcpt_verify_quota = TRUE;
+ if (++i < argc) message_size = Uatoi(argv[i]);
+ else badarg = TRUE;
+ break;
+
/* -MCS: set the smtp_use_size flag; this is useful only when it
precedes -MC (see above) */
case 'S': smtp_peer_options |= OPTION_SIZE; break;
#ifndef DISABLE_TLS
+ /* -MCs: used with -MCt; SNI was sent */
+ /* -MCr: ditto, DANE */
+
+ case 'r':
+ case 's': if (++i < argc)
+ {
+ continue_proxy_sni = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_HOSTNAME_MAX, "-MCr/-MCs"), TRUE);
+ if (argrest[1] == 'r') continue_proxy_dane = TRUE;
+ }
+ else badarg = TRUE;
+ break;
+
/* -MCt: similar to -MCT below but the connection is still open
via a proxy process which handles the TLS context and coding.
Require three arguments for the proxied local address and port,
- and the TLS cipher. */
+ and the TLS cipher. */
- case 't': if (++i < argc) sending_ip_address = argv[i];
+ case 't': if (++i < argc)
+ sending_ip_address = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_IPADDR_MAX, "-MCt IP"), TRUE);
else badarg = TRUE;
- if (++i < argc) sending_port = (int)(Uatol(argv[i]));
+ if (++i < argc)
+ sending_port = (int)(Uatol(argv[i]));
else badarg = TRUE;
- if (++i < argc) continue_proxy_cipher = argv[i];
+ if (++i < argc)
+ continue_proxy_cipher = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_CIPHERNAME_MAX, "-MCt cipher"), TRUE);
else badarg = TRUE;
/*FALLTHROUGH*/
following options which are followed by a single message id, and which
act on that message. Some of them use the "recipient" addresses as well.
-Mar add recipient(s)
+ -MG move to a different queue
-Mmad mark all recipients delivered
-Mmd mark recipients(s) delivered
-Mes edit sender
-Mvl show log
*/
- else if (*argrest == 0)
+ else if (!*argrest)
{
msg_action = MSG_DELIVER;
forced_delivery = f.deliver_force_thaw = TRUE;
else if (Ustrcmp(argrest, "G") == 0)
{
msg_action = MSG_SETQUEUE;
- queue_name_dest = argv[++i];
+ queue_name_dest = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_DRIVERNAME_MAX, "-MG"), TRUE);
}
else if (Ustrcmp(argrest, "mad") == 0)
{
for sendmail it askes for "me too". Exim always does this. */
case 'm':
- if (*argrest != 0) badarg = TRUE;
+ if (*argrest) badarg = TRUE;
break;
their thing. It implies debugging at the D_v level. */
case 'N':
- if (*argrest == 0)
+ if (!*argrest)
{
f.dont_deliver = TRUE;
debug_selector |= D_v;
-O option=value and -Ooption=value. */
case 'O':
- if (*argrest == 0)
- {
+ if (!*argrest)
if (++i >= argc)
exim_fail("exim: string expected after -O\n");
- }
break;
case 'o':
-
- /* -oA: Set an argument for the bi command (sendmail's "alternate alias
- file" option). */
-
- if (*argrest == 'A')
- {
- alias_arg = argrest + 1;
- if (alias_arg[0] == 0)
- {
- if (i+1 < argc) alias_arg = argv[++i]; else
- exim_fail("exim: string expected after -oA\n");
- }
- }
-
- /* -oB: Set a connection message max value for remote deliveries */
-
- else if (*argrest == 'B')
- {
- uschar *p = argrest + 1;
- if (p[0] == 0)
- {
- if (i+1 < argc && isdigit((argv[i+1][0]))) p = argv[++i]; else
- {
- connection_max_messages = 1;
- p = NULL;
- }
- }
-
- if (p != NULL)
- {
- if (!isdigit(*p))
- exim_fail("exim: number expected after -oB\n");
- connection_max_messages = Uatoi(p);
- }
- }
-
- /* -odb: background delivery */
-
- else if (Ustrcmp(argrest, "db") == 0)
- {
- f.synchronous_delivery = FALSE;
- arg_queue_only = FALSE;
- queue_only_set = TRUE;
- }
-
- /* -odf: foreground delivery (smail-compatible option); same effect as
- -odi: interactive (synchronous) delivery (sendmail-compatible option)
- */
-
- else if (Ustrcmp(argrest, "df") == 0 || Ustrcmp(argrest, "di") == 0)
+ switch (*argrest++)
{
- f.synchronous_delivery = TRUE;
- arg_queue_only = FALSE;
- queue_only_set = TRUE;
- }
-
- /* -odq: queue only */
+ /* -oA: Set an argument for the bi command (sendmail's "alternate alias
+ file" option). */
+ case 'A':
+ if (!*(alias_arg = argrest))
+ if (i+1 < argc) alias_arg = argv[++i];
+ else exim_fail("exim: string expected after -oA\n");
+ break;
- else if (Ustrcmp(argrest, "dq") == 0)
- {
- f.synchronous_delivery = FALSE;
- arg_queue_only = TRUE;
- queue_only_set = TRUE;
- }
+ /* -oB: Set a connection message max value for remote deliveries */
+ case 'B':
+ {
+ uschar * p = argrest;
+ if (!*p)
+ if (i+1 < argc && isdigit((argv[i+1][0])))
+ p = argv[++i];
+ else
+ {
+ connection_max_messages = 1;
+ p = NULL;
+ }
- /* -odqs: queue SMTP only - do local deliveries and remote routing,
- but no remote delivery */
+ if (p)
+ {
+ if (!isdigit(*p))
+ exim_fail("exim: number expected after -oB\n");
+ connection_max_messages = Uatoi(p);
+ }
+ }
+ break;
- else if (Ustrcmp(argrest, "dqs") == 0)
- {
- f.queue_smtp = TRUE;
- arg_queue_only = FALSE;
- queue_only_set = TRUE;
- }
+ /* -odb: background delivery */
+
+ case 'd':
+ if (Ustrcmp(argrest, "b") == 0)
+ {
+ f.synchronous_delivery = FALSE;
+ arg_queue_only = FALSE;
+ queue_only_set = TRUE;
+ }
+
+ /* -odd: testsuite-only: add no inter-process delays */
+
+ else if (Ustrcmp(argrest, "d") == 0)
+ f.testsuite_delays = FALSE;
+
+ /* -odf: foreground delivery (smail-compatible option); same effect as
+ -odi: interactive (synchronous) delivery (sendmail-compatible option)
+ */
+
+ else if (Ustrcmp(argrest, "f") == 0 || Ustrcmp(argrest, "i") == 0)
+ {
+ f.synchronous_delivery = TRUE;
+ arg_queue_only = FALSE;
+ queue_only_set = TRUE;
+ }
+
+ /* -odq: queue only */
+
+ else if (Ustrcmp(argrest, "q") == 0)
+ {
+ f.synchronous_delivery = FALSE;
+ arg_queue_only = TRUE;
+ queue_only_set = TRUE;
+ }
+
+ /* -odqs: queue SMTP only - do local deliveries and remote routing,
+ but no remote delivery */
+
+ else if (Ustrcmp(argrest, "qs") == 0)
+ {
+ f.queue_smtp = TRUE;
+ arg_queue_only = FALSE;
+ queue_only_set = TRUE;
+ }
+ else badarg = TRUE;
+ break;
- /* -oex: Sendmail error flags. As these are also accepted without the
- leading -o prefix, for compatibility with vacation and other callers,
- they are handled with -e above. */
+ /* -oex: Sendmail error flags. As these are also accepted without the
+ leading -o prefix, for compatibility with vacation and other callers,
+ they are handled with -e above. */
- /* -oi: Set flag so dot doesn't end non-SMTP input (same as -i)
- -oitrue: Another sendmail syntax for the same */
+ /* -oi: Set flag so dot doesn't end non-SMTP input (same as -i)
+ -oitrue: Another sendmail syntax for the same */
- else if (Ustrcmp(argrest, "i") == 0 ||
- Ustrcmp(argrest, "itrue") == 0)
- f.dot_ends = FALSE;
+ case 'i':
+ if (!*argrest || Ustrcmp(argrest, "true") == 0)
+ f.dot_ends = FALSE;
+ else badarg = TRUE;
+ break;
/* -oM*: Set various characteristics for an incoming message; actually
acted on for trusted callers only. */
- else if (*argrest == 'M')
- {
- if (i+1 >= argc)
- exim_fail("exim: data expected after -o%s\n", argrest);
-
- /* -oMa: Set sender host address */
+ case 'M':
+ {
+ if (i+1 >= argc)
+ exim_fail("exim: data expected after -oM%s\n", argrest);
- if (Ustrcmp(argrest, "Ma") == 0) sender_host_address = argv[++i];
+ /* -oMa: Set sender host address */
- /* -oMaa: Set authenticator name */
+ if (Ustrcmp(argrest, "a") == 0)
+ sender_host_address = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_IPADDR_MAX, "-oMa"), TRUE);
- else if (Ustrcmp(argrest, "Maa") == 0)
- sender_host_authenticated = argv[++i];
+ /* -oMaa: Set authenticator name */
- /* -oMas: setting authenticated sender */
+ else if (Ustrcmp(argrest, "aa") == 0)
+ sender_host_authenticated = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_DRIVERNAME_MAX, "-oMaa"), TRUE);
- else if (Ustrcmp(argrest, "Mas") == 0)
- authenticated_sender = string_copy_taint(argv[++i], TRUE);
+ /* -oMas: setting authenticated sender */
- /* -oMai: setting authenticated id */
+ else if (Ustrcmp(argrest, "as") == 0)
+ authenticated_sender = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_EMAILADDR_MAX, "-oMas"), TRUE);
- else if (Ustrcmp(argrest, "Mai") == 0)
- authenticated_id = string_copy_taint(argv[++i], TRUE);
+ /* -oMai: setting authenticated id */
- /* -oMi: Set incoming interface address */
+ else if (Ustrcmp(argrest, "ai") == 0)
+ authenticated_id = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_EMAILADDR_MAX, "-oMas"), TRUE);
- else if (Ustrcmp(argrest, "Mi") == 0) interface_address = argv[++i];
+ /* -oMi: Set incoming interface address */
- /* -oMm: Message reference */
+ else if (Ustrcmp(argrest, "i") == 0)
+ interface_address = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_IPADDR_MAX, "-oMi"), TRUE);
- else if (Ustrcmp(argrest, "Mm") == 0)
- {
- if (!mac_ismsgid(argv[i+1]))
- exim_fail("-oMm must be a valid message ID\n");
- if (!f.trusted_config)
- exim_fail("-oMm must be called by a trusted user/config\n");
- message_reference = argv[++i];
- }
+ /* -oMm: Message reference */
- /* -oMr: Received protocol */
+ else if (Ustrcmp(argrest, "m") == 0)
+ {
+ if (!mac_ismsgid(argv[i+1]))
+ exim_fail("-oMm must be a valid message ID\n");
+ if (!f.trusted_config)
+ exim_fail("-oMm must be called by a trusted user/config\n");
+ message_reference = argv[++i];
+ }
- else if (Ustrcmp(argrest, "Mr") == 0)
+ /* -oMr: Received protocol */
- if (received_protocol)
- exim_fail("received_protocol is set already\n");
- else
- received_protocol = argv[++i];
+ else if (Ustrcmp(argrest, "r") == 0)
- /* -oMs: Set sender host name */
+ if (received_protocol)
+ exim_fail("received_protocol is set already\n");
+ else
+ received_protocol = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_DRIVERNAME_MAX, "-oMr"), TRUE);
- else if (Ustrcmp(argrest, "Ms") == 0)
- sender_host_name = string_copy_taint(argv[++i], TRUE);
+ /* -oMs: Set sender host name */
- /* -oMt: Set sender ident */
+ else if (Ustrcmp(argrest, "s") == 0)
+ sender_host_name = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_HOSTNAME_MAX, "-oMs"), TRUE);
- else if (Ustrcmp(argrest, "Mt") == 0)
- {
- sender_ident_set = TRUE;
- sender_ident = argv[++i];
- }
+ /* -oMt: Set sender ident */
- /* Else a bad argument */
+ else if (Ustrcmp(argrest, "t") == 0)
+ {
+ sender_ident_set = TRUE;
+ sender_ident = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_IDENTUSER_MAX, "-oMt"), TRUE);
+ }
- else
- {
- badarg = TRUE;
- break;
- }
- }
+ /* Else a bad argument */
- /* -om: Me-too flag for aliases. Exim always does this. Some programs
- seem to call this as -m (undocumented), so that is also accepted (see
- above). */
+ else
+ badarg = TRUE;
+ }
+ break;
- else if (Ustrcmp(argrest, "m") == 0) {}
+ /* -om: Me-too flag for aliases. Exim always does this. Some programs
+ seem to call this as -m (undocumented), so that is also accepted (see
+ above). */
+ /* -oo: An ancient flag for old-style addresses which still seems to
+ crop up in some calls (see in SCO). */
- /* -oo: An ancient flag for old-style addresses which still seems to
- crop up in some calls (see in SCO). */
+ case 'm':
+ case 'o':
+ if (*argrest) badarg = TRUE;
+ break;
- else if (Ustrcmp(argrest, "o") == 0) {}
+ /* -oP <name>: set pid file path for daemon
+ -oPX: delete pid file of daemon */
+
+ case 'P':
+ if (!f.running_in_test_harness && real_uid != root_uid && real_uid != exim_uid)
+ exim_fail("exim: only uid=%d or uid=%d can use -oP and -oPX "
+ "(uid=%d euid=%d | %d)\n",
+ root_uid, exim_uid, getuid(), geteuid(), real_uid);
+ if (!*argrest) override_pid_file_path = argv[++i];
+ else if (Ustrcmp(argrest, "X") == 0) delete_pid_file();
+ else badarg = TRUE;
+ break;
- /* -oP <name>: set pid file path for daemon
- -oPX: delete pid file of daemon */
- else if (Ustrcmp(argrest, "P") == 0)
- override_pid_file_path = argv[++i];
+ /* -or <n>: set timeout for non-SMTP acceptance
+ -os <n>: set timeout for SMTP acceptance */
- else if (Ustrcmp(argrest, "PX") == 0)
- delete_pid_file();
+ case 'r':
+ case 's':
+ {
+ int * tp = argrest[-1] == 'r'
+ ? &arg_receive_timeout : &arg_smtp_receive_timeout;
+ if (*argrest)
+ *tp = readconf_readtime(argrest, 0, FALSE);
+ else if (i+1 < argc)
+ *tp = readconf_readtime(argv[++i], 0, FALSE);
+
+ if (*tp < 0)
+ exim_fail("exim: bad time value %s: abandoned\n", argv[i]);
+ }
+ break;
- /* -or <n>: set timeout for non-SMTP acceptance
- -os <n>: set timeout for SMTP acceptance */
+ /* -oX <list>: Override local_interfaces and/or default daemon ports */
+ /* Limits: Is there a real limit we want here? 1024 is very arbitrary. */
- else if (*argrest == 'r' || *argrest == 's')
- {
- int *tp = (*argrest == 'r')?
- &arg_receive_timeout : &arg_smtp_receive_timeout;
- if (argrest[1] == 0)
- {
- if (i+1 < argc) *tp= readconf_readtime(argv[++i], 0, FALSE);
- }
- else *tp = readconf_readtime(argrest + 1, 0, FALSE);
- if (*tp < 0)
- exim_fail("exim: bad time value %s: abandoned\n", argv[i]);
- }
+ case 'X':
+ if (*argrest) badarg = TRUE;
+ else override_local_interfaces = string_copy_taint(exim_str_fail_toolong(argv[++i], 1024, "-oX"), TRUE);
+ break;
- /* -oX <list>: Override local_interfaces and/or default daemon ports */
+ /* -oY: Override creation of daemon notifier socket */
- else if (Ustrcmp(argrest, "X") == 0)
- override_local_interfaces = argv[++i];
+ case 'Y':
+ if (*argrest) badarg = TRUE;
+ else notifier_socket = NULL;
+ break;
- /* Unknown -o argument */
+ /* Unknown -o argument */
- else badarg = TRUE;
+ default:
+ badarg = TRUE;
+ }
break;
/* -panythingelse is taken as the Sendmail-compatible argument -prval:sval,
which sets the host protocol and host name */
- if (*argrest == 0)
- if (i+1 < argc)
- argrest = argv[++i];
- else
- { badarg = TRUE; break; }
+ if (!*argrest)
+ if (i+1 < argc) argrest = argv[++i]; else { badarg = TRUE; break; }
- if (*argrest != 0)
+ if (*argrest)
{
- uschar *hn;
+ uschar * hn = Ustrchr(argrest, ':');
if (received_protocol)
exim_fail("received_protocol is set already\n");
- hn = Ustrchr(argrest, ':');
- if (hn == NULL)
- received_protocol = argrest;
+ if (!hn)
+ received_protocol = string_copy_taint(exim_str_fail_toolong(argrest, EXIM_DRIVERNAME_MAX, "-p<protocol>"), TRUE);
else
{
- int old_pool = store_pool;
- store_pool = POOL_PERM;
- received_protocol = string_copyn(argrest, hn - argrest);
- store_pool = old_pool;
- sender_host_name = hn + 1;
+ (void) exim_str_fail_toolong(argrest, (EXIM_DRIVERNAME_MAX+1+EXIM_HOSTNAME_MAX), "-p<protocol>:<host>");
+ received_protocol = string_copyn_taint(argrest, hn - argrest, TRUE);
+ sender_host_name = string_copy_taint(hn + 1, TRUE);
}
}
break;
{
int i;
for (argrest++, i = 0; argrest[i] && argrest[i] != '/'; ) i++;
+ exim_len_fail_toolong(i, EXIM_DRIVERNAME_MAX, "-q*G<name>");
queue_name = string_copyn(argrest, i);
argrest += i;
if (*argrest == '/') argrest++;
only, optionally named, optionally starting from a given message id. */
if (!(list_queue || count_queue))
- if (*argrest == 0
+ if ( !*argrest
&& (i + 1 >= argc || argv[i+1][0] == '-' || mac_ismsgid(argv[i+1])))
{
queue_interval = 0;
if (i+1 < argc && mac_ismsgid(argv[i+1]))
- start_queue_run_id = argv[++i];
+ start_queue_run_id = string_copy_taint(argv[++i], TRUE);
if (i+1 < argc && mac_ismsgid(argv[i+1]))
- stop_queue_run_id = argv[++i];
+ stop_queue_run_id = string_copy_taint(argv[++i], TRUE);
}
/* -q[f][f][l][G<name>/]<n>: Run the queue at regular intervals, optionally
case 'R': /* Synonymous with -qR... */
- receiving_message = FALSE;
+ {
+ const uschar *tainted_selectstr;
+
+ receiving_message = FALSE;
/* -Rf: As -R (below) but force all deliveries,
-Rff: Ditto, but also thaw all frozen messages,
in all cases provided there are no further characters in this
argument. */
- if (*argrest != 0)
- for (int i = 0; i < nelem(rsopts); i++)
- if (Ustrcmp(argrest, rsopts[i]) == 0)
- {
- if (i != 2) f.queue_run_force = TRUE;
- if (i >= 2) f.deliver_selectstring_regex = TRUE;
- if (i == 1 || i == 4) f.deliver_force_thaw = TRUE;
- argrest += Ustrlen(rsopts[i]);
- }
+ if (*argrest)
+ for (int i = 0; i < nelem(rsopts); i++)
+ if (Ustrcmp(argrest, rsopts[i]) == 0)
+ {
+ if (i != 2) f.queue_run_force = TRUE;
+ if (i >= 2) f.deliver_selectstring_regex = TRUE;
+ if (i == 1 || i == 4) f.deliver_force_thaw = TRUE;
+ argrest += Ustrlen(rsopts[i]);
+ }
/* -R: Set string to match in addresses for forced queue run to
pick out particular messages. */
- if (*argrest)
- deliver_selectstring = argrest;
- else if (i+1 < argc)
- deliver_selectstring = argv[++i];
- else
- exim_fail("exim: string expected after -R\n");
+ /* Avoid attacks from people providing very long strings, and do so before
+ we make copies. */
+ if (*argrest)
+ tainted_selectstr = argrest;
+ else if (i+1 < argc)
+ tainted_selectstr = argv[++i];
+ else
+ exim_fail("exim: string expected after -R\n");
+ deliver_selectstring = string_copy_taint(exim_str_fail_toolong(tainted_selectstr, EXIM_EMAILADDR_MAX, "-R"), TRUE);
+ }
break;
-
/* -r: an obsolete synonym for -f (see above) */
/* -S: Like -R but works on sender. */
case 'S': /* Synonymous with -qS... */
- receiving_message = FALSE;
+ {
+ const uschar *tainted_selectstr;
+
+ receiving_message = FALSE;
/* -Sf: As -S (below) but force all deliveries,
-Sff: Ditto, but also thaw all frozen messages,
in all cases provided there are no further characters in this
argument. */
- if (*argrest)
- for (int i = 0; i < nelem(rsopts); i++)
- if (Ustrcmp(argrest, rsopts[i]) == 0)
- {
- if (i != 2) f.queue_run_force = TRUE;
- if (i >= 2) f.deliver_selectstring_sender_regex = TRUE;
- if (i == 1 || i == 4) f.deliver_force_thaw = TRUE;
- argrest += Ustrlen(rsopts[i]);
- }
+ if (*argrest)
+ for (int i = 0; i < nelem(rsopts); i++)
+ if (Ustrcmp(argrest, rsopts[i]) == 0)
+ {
+ if (i != 2) f.queue_run_force = TRUE;
+ if (i >= 2) f.deliver_selectstring_sender_regex = TRUE;
+ if (i == 1 || i == 4) f.deliver_force_thaw = TRUE;
+ argrest += Ustrlen(rsopts[i]);
+ }
/* -S: Set string to match in addresses for forced queue run to
pick out particular messages. */
- if (*argrest)
- deliver_selectstring_sender = argrest;
- else if (i+1 < argc)
- deliver_selectstring_sender = argv[++i];
- else
- exim_fail("exim: string expected after -S\n");
+ if (*argrest)
+ tainted_selectstr = argrest;
+ else if (i+1 < argc)
+ tainted_selectstr = argv[++i];
+ else
+ exim_fail("exim: string expected after -S\n");
+ deliver_selectstring_sender = string_copy_taint(exim_str_fail_toolong(tainted_selectstr, EXIM_EMAILADDR_MAX, "-S"), TRUE);
+ }
break;
/* -Tqt is an option that is exclusively for use by the testing suite.
case 'T':
if (f.running_in_test_harness && Ustrcmp(argrest, "qt") == 0)
- fudged_queue_times = argv[++i];
+ fudged_queue_times = string_copy_taint(argv[++i], TRUE);
else badarg = TRUE;
break;
/* -t: Set flag to extract recipients from body of message. */
case 't':
- if (*argrest == 0) extract_recipients = TRUE;
+ if (!*argrest) extract_recipients = TRUE;
/* -ti: Set flag to extract recipients from body of message, and also
specify that dot does not end the message. */
/* -v: verify things - this is a very low-level debugging */
case 'v':
- if (*argrest == 0)
+ if (!*argrest)
{
debug_selector |= D_v;
debug_file = stderr;
As Exim is 8-bit clean, it just ignores this flag. */
case 'x':
- if (*argrest != 0) badarg = TRUE;
+ if (*argrest) badarg = TRUE;
break;
/* -X: in sendmail: takes one parameter, logfile, and sends debugging
logs to that file. We swallow the parameter and otherwise ignore it. */
case 'X':
- if (*argrest == '\0')
+ if (!*argrest)
if (++i >= argc)
exim_fail("exim: string expected after -X\n");
break;
+ /* -z: a line of text to log */
+
case 'z':
- if (*argrest == '\0')
+ if (!*argrest)
if (++i < argc)
- log_oneline = argv[i];
+ log_oneline = string_copy_taint(exim_str_fail_toolong(argv[i], 2048, "-z logtext"), TRUE);
else
exim_fail("exim: file name expected after %s\n", argv[i-1]);
break;
/* If -R or -S have been specified without -q, assume a single queue run. */
-if ( (deliver_selectstring || deliver_selectstring_sender)
- && queue_interval < 0)
- queue_interval = 0;
+ if ( (deliver_selectstring || deliver_selectstring_sender)
+ && queue_interval < 0)
+ queue_interval = 0;
END_ARG:
+ store_pool = old_pool;
+ }
+
/* If usage_wanted is set we call the usage function - which never returns */
if (usage_wanted) exim_usage(called_as);
/* Arguments have been processed. Check for incompatibilities. */
-if ((
- (smtp_input || extract_recipients || recipients_arg < argc) &&
- (f.daemon_listen || queue_interval >= 0 || bi_option ||
- test_retry_arg >= 0 || test_rewrite_arg >= 0 ||
- filter_test != FTEST_NONE || (msg_action_arg > 0 && !one_msg_action))
- ) ||
- (
- msg_action_arg > 0 &&
- (f.daemon_listen || queue_interval > 0 || list_options ||
- (checking && msg_action != MSG_LOAD) ||
- bi_option || test_retry_arg >= 0 || test_rewrite_arg >= 0)
- ) ||
- (
- (f.daemon_listen || queue_interval > 0) &&
- (sender_address != NULL || list_options || list_queue || checking ||
- bi_option)
- ) ||
- (
- f.daemon_listen && queue_interval == 0
- ) ||
- (
- f.inetd_wait_mode && queue_interval >= 0
- ) ||
- (
- list_options &&
- (checking || smtp_input || extract_recipients ||
- filter_test != FTEST_NONE || bi_option)
- ) ||
- (
- verify_address_mode &&
- (f.address_test_mode || smtp_input || extract_recipients ||
- filter_test != FTEST_NONE || bi_option)
- ) ||
- (
- f.address_test_mode && (smtp_input || extract_recipients ||
- filter_test != FTEST_NONE || bi_option)
- ) ||
- (
- smtp_input && (sender_address != NULL || filter_test != FTEST_NONE ||
- extract_recipients)
- ) ||
- (
- deliver_selectstring != NULL && queue_interval < 0
- ) ||
- (
- msg_action == MSG_LOAD &&
- (!expansion_test || expansion_test_message != NULL)
- )
+if ( ( (smtp_input || extract_recipients || recipients_arg < argc)
+ && ( f.daemon_listen || queue_interval >= 0 || bi_option
+ || test_retry_arg >= 0 || test_rewrite_arg >= 0
+ || filter_test != FTEST_NONE
+ || msg_action_arg > 0 && !one_msg_action
+ ) )
+ || ( msg_action_arg > 0
+ && ( f.daemon_listen || queue_interval > 0 || list_options
+ || checking && msg_action != MSG_LOAD
+ || bi_option || test_retry_arg >= 0 || test_rewrite_arg >= 0
+ ) )
+ || ( (f.daemon_listen || queue_interval > 0)
+ && ( sender_address || list_options || list_queue || checking
+ || bi_option
+ ) )
+ || f.daemon_listen && queue_interval == 0
+ || f.inetd_wait_mode && queue_interval >= 0
+ || ( list_options
+ && ( checking || smtp_input || extract_recipients
+ || filter_test != FTEST_NONE || bi_option
+ ) )
+ || ( verify_address_mode
+ && ( f.address_test_mode || smtp_input || extract_recipients
+ || filter_test != FTEST_NONE || bi_option
+ ) )
+ || ( f.address_test_mode
+ && ( smtp_input || extract_recipients || filter_test != FTEST_NONE
+ || bi_option
+ ) )
+ || ( smtp_input
+ && (sender_address || filter_test != FTEST_NONE || extract_recipients)
+ )
+ || deliver_selectstring && queue_interval < 0
+ || msg_action == MSG_LOAD && (!expansion_test || expansion_test_message)
)
exim_fail("exim: incompatible command-line options or arguments\n");
{
struct rlimit rlp;
- #ifdef RLIMIT_NOFILE
+#ifdef RLIMIT_NOFILE
if (getrlimit(RLIMIT_NOFILE, &rlp) < 0)
{
log_write(0, LOG_MAIN|LOG_PANIC, "getrlimit(RLIMIT_NOFILE) failed: %s",
strerror(errno));
}
}
- #endif
+#endif
- #ifdef RLIMIT_NPROC
+#ifdef RLIMIT_NPROC
if (getrlimit(RLIMIT_NPROC, &rlp) < 0)
{
log_write(0, LOG_MAIN|LOG_PANIC, "getrlimit(RLIMIT_NPROC) failed: %s",
rlp.rlim_cur = rlp.rlim_max = 0;
}
- #ifdef RLIM_INFINITY
+# ifdef RLIM_INFINITY
if (rlp.rlim_cur != RLIM_INFINITY && rlp.rlim_cur < 1000)
{
rlp.rlim_cur = rlp.rlim_max = RLIM_INFINITY;
- #else
+# else
if (rlp.rlim_cur < 1000)
{
rlp.rlim_cur = rlp.rlim_max = 1000;
- #endif
+# endif
if (setrlimit(RLIMIT_NPROC, &rlp) < 0)
log_write(0, LOG_MAIN|LOG_PANIC, "setrlimit(RLIMIT_NPROC) failed: %s",
strerror(errno));
}
- #endif
+#endif
}
/* Exim is normally entered as root (but some special configurations are
This needs to happen before we read the main configuration. */
init_lookup_list();
+/*XXX this excrescence could move to the testsuite standard config setup file */
#ifdef SUPPORT_I18N
if (f.running_in_test_harness) smtputf8_advertise_hosts = NULL;
#endif
/* Store the initial cwd before we change directories. Can be NULL if the
dir has already been unlinked. */
initial_cwd = os_getcwd(NULL, 0);
+if (!initial_cwd && errno)
+ exim_fail("exim: getting initial cwd failed: %s\n", strerror(errno));
+
+if (initial_cwd && (strlen(CCS initial_cwd) >= BIG_BUFFER_SIZE))
+ exim_fail("exim: initial cwd is far too long (%d)\n", Ustrlen(CCS initial_cwd));
/* checking:
-be[m] expansion test -
defined) */
{
+ int old_pool = store_pool;
#ifdef MEASURE_TIMING
struct timeval t0, diff;
(void)gettimeofday(&t0, NULL);
#endif
+ store_pool = POOL_CONFIG;
readconf_main(checking || list_options);
+ store_pool = old_pool;
#ifdef MEASURE_TIMING
report_time_since(&t0, US"readconf_main (delta)");
#endif
}
-
/* Now in directory "/" */
if (cleanup_environment() == FALSE)
p += 13;
else
{
- Ustrncpy(p + 4, initial_cwd, big_buffer_size-5);
- p += 4 + Ustrlen(initial_cwd);
- /* in case p is near the end and we don't provide enough space for
- * string_format to be willing to write. */
- *p = '\0';
+ p += 4;
+ snprintf(CS p, big_buffer_size - (p - big_buffer), "%s", CCS initial_cwd);
+ p += Ustrlen(CCS p);
}
(void)string_format(p, big_buffer_size - (p - big_buffer), " %d args:", argc);
p = big_buffer + 3;
}
printing = string_printing(argv[i]);
- if (printing[0] == 0) quote = US"\""; else
+ if (!*printing) quote = US"\"";
+ else
{
const uschar *pp = printing;
quote = US"";
- while (*pp != 0) if (isspace(*pp++)) { quote = US"\""; break; }
+ while (*pp) if (isspace(*pp++)) { quote = US"\""; break; }
}
p += sprintf(CS p, " %s%.*s%s", quote, (int)(big_buffer_size -
(p - big_buffer) - 4), printing, quote);
if (Uchdir(spool_directory) != 0)
{
- int dummy;
- (void)directory_make(spool_directory, US"", SPOOL_DIRECTORY_MODE, FALSE);
- dummy = /* quieten compiler */ Uchdir(spool_directory);
- dummy = dummy; /* yet more compiler quietening, sigh */
+ (void) directory_make(spool_directory, US"", SPOOL_DIRECTORY_MODE, FALSE);
+ (void) Uchdir(spool_directory);
}
/* Handle calls with the -bi option. This is a sendmail option to rebuild *the*
if (bi_option)
{
- (void)fclose(config_file);
- if (bi_command != NULL)
+ (void) fclose(config_file);
+ if (bi_command && *bi_command)
{
int i = 0;
uschar *argv[3];
argv[i++] = bi_command;
- if (alias_arg != NULL) argv[i++] = alias_arg;
+ if (alias_arg) argv[i++] = alias_arg;
argv[i++] = NULL;
setgroups(group_count, group_list);
exim_setugid(real_uid, real_gid, FALSE, US"running bi_command");
- DEBUG(D_exec) debug_printf("exec %.256s %.256s\n", argv[0],
- (argv[1] == NULL)? US"" : argv[1]);
+ DEBUG(D_exec) debug_printf("exec '%.256s' %s%.256s%s\n", argv[0],
+ argv[1] ? "'" : "", argv[1] ? argv[1] : US"", argv[1] ? "'" : "");
execv(CS argv[0], (char *const *)argv);
- exim_fail("exim: exec failed: %s\n", strerror(errno));
+ exim_fail("exim: exec '%s' failed: %s\n", argv[0], strerror(errno));
}
else
{
|| queue_name_dest && prod_requires_admin
|| debugset && !f.running_in_test_harness
)
- exim_fail("exim:%s permission denied\n", debugset? " debugging" : "");
+ exim_fail("exim:%s permission denied\n", debugset ? " debugging" : "");
}
/* If the real user is not root or the exim uid, the argument for passing
one that supplied an input message, or we are using a patched exim for
regression testing. */
-if (real_uid != root_uid && real_uid != exim_uid &&
- (continue_hostname != NULL ||
- (f.dont_deliver &&
- (queue_interval >= 0 || f.daemon_listen || msg_action_arg > 0)
- )) && !f.running_in_test_harness)
+if ( real_uid != root_uid && real_uid != exim_uid
+ && ( continue_hostname
+ || ( f.dont_deliver
+ && (queue_interval >= 0 || f.daemon_listen || msg_action_arg > 0)
+ ) )
+ && !f.running_in_test_harness
+ )
exim_fail("exim: Permission denied\n");
/* If the caller is not trusted, certain arguments are ignored when running for
else
{
- if (sender_host_address != NULL)
+ if (sender_host_address)
sender_host_port = check_port(sender_host_address);
- if (interface_address != NULL)
+ if (interface_address)
interface_port = check_port(interface_address);
}
situation (controlled by the TRUE below), in order to be as close as possible
to the state Exim usually runs in. */
-if (!unprivileged && /* originally had root AND */
- !removed_privilege && /* still got root AND */
- !f.daemon_listen && /* not starting the daemon */
- queue_interval <= 0 && /* (either kind of daemon) */
- ( /* AND EITHER */
- deliver_drop_privilege || /* requested unprivileged */
- ( /* OR */
- queue_interval < 0 && /* not running the queue */
- (msg_action_arg < 0 || /* and */
- msg_action != MSG_DELIVER) && /* not delivering and */
- (!checking || !f.address_test_mode) /* not address checking */
- ) ) )
+if ( !unprivileged /* originally had root AND */
+ && !removed_privilege /* still got root AND */
+ && !f.daemon_listen /* not starting the daemon */
+ && queue_interval <= 0 /* (either kind of daemon) */
+ && ( /* AND EITHER */
+ deliver_drop_privilege /* requested unprivileged */
+ || ( /* OR */
+ queue_interval < 0 /* not running the queue */
+ && ( msg_action_arg < 0 /* and */
+ || msg_action != MSG_DELIVER /* not delivering */
+ ) /* and */
+ && (!checking || !f.address_test_mode) /* not address checking */
+ && !rcpt_verify_quota /* and not quota checking */
+ ) ) )
exim_setugid(exim_uid, exim_gid, TRUE, US"privilege not needed");
/* When we are retaining a privileged uid, we still change to the exim gid. */
if (!(unprivileged || removed_privilege))
exim_fail("exim: changing group failed: %s\n", strerror(errno));
else
+ {
DEBUG(D_any) debug_printf("changing group to %ld failed: %s\n",
(long int)exim_gid, strerror(errno));
+ }
}
/* Handle a request to scan a file for malware */
#ifdef WITH_CONTENT_SCAN
int result;
set_process_info("scanning file for malware");
- result = malware_in_file(malware_test_file);
- if (result == FAIL)
+ if ((result = malware_in_file(malware_test_file)) == FAIL)
{
printf("No malware found.\n");
exit(EXIT_SUCCESS);
if (count_queue)
{
set_process_info("counting the queue");
- queue_count();
+ fprintf(stdout, "%u\n", queue_count());
exit(EXIT_SUCCESS);
}
event_action gets expanded */
if (msg_action == MSG_REMOVE)
+ {
+ int old_pool = store_pool;
+ store_pool = POOL_CONFIG;
readconf_rest();
+ store_pool = old_pool;
+ store_writeprotect(POOL_CONFIG);
+ }
if (!one_msg_action)
{
needed in transports so we lost the optimisation. */
{
+ int old_pool = store_pool;
#ifdef MEASURE_TIMING
struct timeval t0, diff;
(void)gettimeofday(&t0, NULL);
#endif
+ store_pool = POOL_CONFIG;
readconf_rest();
+ store_pool = old_pool;
+ store_writeprotect(POOL_CONFIG);
#ifdef MEASURE_TIMING
report_time_since(&t0, US"readconf_rest (delta)");
#endif
}
+/* Handle a request to check quota */
+if (rcpt_verify_quota)
+ if (real_uid != root_uid && real_uid != exim_uid)
+ exim_fail("exim: Permission denied\n");
+ else if (recipients_arg >= argc)
+ exim_fail("exim: missing recipient for quota check\n");
+ else
+ {
+ verify_quota(argv[recipients_arg]);
+ exim_exit(EXIT_SUCCESS);
+ }
+
/* Handle the -brt option. This is for checking out retry configurations.
The next three arguments are a domain name or a complete address, and
optionally two error numbers. All it does is to call the function that
retry_config *yield;
int basic_errno = 0;
int more_errno = 0;
- uschar *s1, *s2;
+ const uschar *s1, *s2;
if (test_retry_arg >= argc)
{
printf("-brt needs a domain or address argument\n");
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
}
- s1 = argv[test_retry_arg++];
+ s1 = exim_str_fail_toolong(argv[test_retry_arg++], EXIM_EMAILADDR_MAX, "-brt");
s2 = NULL;
/* If the first argument contains no @ and no . it might be a local user
/* There may be an optional second domain arg. */
if (test_retry_arg < argc && Ustrchr(argv[test_retry_arg], '.') != NULL)
- s2 = argv[test_retry_arg++];
+ s2 = exim_str_fail_toolong(argv[test_retry_arg++], EXIM_DOMAINNAME_MAX, "-brt 2nd");
/* The final arg is an error name */
if (test_retry_arg < argc)
{
- uschar *ss = argv[test_retry_arg];
+ const uschar *ss = exim_str_fail_toolong(argv[test_retry_arg], EXIM_DRIVERNAME_MAX, "-brt 3rd");
uschar *error =
readconf_retry_error(ss, ss + Ustrlen(ss), &basic_errno, &more_errno);
if (error != NULL)
printf("\n");
}
- exim_exit(EXIT_SUCCESS, US"main");
+ exim_exit(EXIT_SUCCESS);
}
/* Handle a request to list one or more configuration options */
Ustrcmp(argv[i], "macro") == 0 ||
Ustrcmp(argv[i], "environment") == 0))
{
- fail |= !readconf_print(argv[i+1], argv[i], flag_n);
+ fail |= !readconf_print(exim_str_fail_toolong(argv[i+1], EXIM_DRIVERNAME_MAX, "-bP name"), argv[i], flag_n);
i++;
}
else
- fail = !readconf_print(argv[i], NULL, flag_n);
+ fail = !readconf_print(exim_str_fail_toolong(argv[i], EXIM_DRIVERNAME_MAX, "-bP item"), NULL, flag_n);
}
- exim_exit(fail ? EXIT_FAILURE : EXIT_SUCCESS, US"main");
+ exim_exit(fail ? EXIT_FAILURE : EXIT_SUCCESS);
}
if (list_config)
{
set_process_info("listing config");
exim_exit(readconf_print(US"config", NULL, flag_n)
- ? EXIT_SUCCESS : EXIT_FAILURE, US"main");
+ ? EXIT_SUCCESS : EXIT_FAILURE);
}
if (prod_requires_admin && !f.admin_user)
{
fprintf(stderr, "exim: Permission denied\n");
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
}
set_process_info("delivering specified messages");
if (deliver_give_up) forced_delivery = f.deliver_force_thaw = TRUE;
{
int status;
pid_t pid;
+ /*XXX This use of argv[i] for msg_id should really be tainted, but doing
+ that runs into a later copy into the untainted global message_id[] */
+ /*XXX Do we need a length limit check here? */
if (i == argc - 1)
(void)deliver_message(argv[i], forced_delivery, deliver_give_up);
- else if ((pid = fork()) == 0)
+ else if ((pid = exim_fork(US"cmdline-delivery")) == 0)
{
(void)deliver_message(argv[i], forced_delivery, deliver_give_up);
exim_underbar_exit(EXIT_SUCCESS);
{
fprintf(stderr, "failed to fork delivery process for %s: %s\n", argv[i],
strerror(errno));
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
}
else wait(&status);
}
- exim_exit(EXIT_SUCCESS, US"main");
+ exim_exit(EXIT_SUCCESS);
}
if (queue_interval == 0 && !f.daemon_listen)
{
DEBUG(D_queue_run) debug_printf("Single queue run%s%s%s%s\n",
- (start_queue_run_id == NULL)? US"" : US" starting at ",
- (start_queue_run_id == NULL)? US"" : start_queue_run_id,
- (stop_queue_run_id == NULL)? US"" : US" stopping at ",
- (stop_queue_run_id == NULL)? US"" : stop_queue_run_id);
+ start_queue_run_id ? US" starting at " : US"",
+ start_queue_run_id ? start_queue_run_id: US"",
+ stop_queue_run_id ? US" stopping at " : US"",
+ stop_queue_run_id ? stop_queue_run_id : US"");
if (*queue_name)
set_process_info("running the '%s' queue (single queue run)", queue_name);
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, US"main");
+ exim_exit(EXIT_SUCCESS);
}
configuration specifies something to use. When running in the test harness,
any setting of unknown_login overrides the actual name. */
-if (originator_login == NULL || f.running_in_test_harness)
+if (!originator_login || f.running_in_test_harness)
{
- if (unknown_login != NULL)
+ if (unknown_login)
{
originator_login = expand_string(unknown_login);
- if (originator_name == NULL && unknown_username != NULL)
+ if (!originator_name && unknown_username)
originator_name = expand_string(unknown_username);
- if (originator_name == NULL) originator_name = US"";
+ if (!originator_name) originator_name = US"";
}
- if (originator_login == NULL)
+ if (!originator_login)
log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed to get user name for uid %d",
(int)real_uid);
}
/* Ensure that the user name is in a suitable form for use as a "phrase" in an
RFC822 address.*/
-originator_name = string_copy(parse_fix_phrase(originator_name,
- Ustrlen(originator_name), big_buffer, big_buffer_size));
+originator_name = US parse_fix_phrase(originator_name, Ustrlen(originator_name));
/* If a message is created by this call of Exim, the uid/gid of its originator
are those of the caller. These values are overridden if an existing message is
if (test_rewrite_arg >= argc)
{
printf("-brw needs an address argument\n");
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
}
- rewrite_test(argv[test_rewrite_arg]);
- exim_exit(EXIT_SUCCESS, US"main");
+ rewrite_test(exim_str_fail_toolong(argv[test_rewrite_arg], EXIM_EMAILADDR_MAX, "-brw"));
+ exim_exit(EXIT_SUCCESS);
}
/* A locally-supplied message is considered to be coming from a local user
sender, or if a sender other than <> is set, override with the originator's
login (which will get qualified below), except when checking things. */
- if (sender_address == NULL /* No sender_address set */
- || /* OR */
+ if ( !sender_address /* No sender_address set */
+ || /* OR */
(sender_address[0] != 0 && /* Non-empty sender address, AND */
!checking)) /* Not running tests, including filter tests */
{
}
if (recipients_arg < argc)
- {
while (recipients_arg < argc)
{
/* Supplied addresses are tainted since they come from a user */
- uschar * s = string_copy_taint(argv[recipients_arg++], TRUE);
+ uschar * s = string_copy_taint(exim_str_fail_toolong(argv[recipients_arg++], EXIM_DISPLAYMAIL_MAX, "address verification"), TRUE);
while (*s)
{
BOOL finished = FALSE;
while (*++s == ',' || isspace(*s)) ;
}
}
- }
else for (;;)
{
uschar * s = get_stdinput(NULL, NULL);
if (!s) break;
- test_address(string_copy_taint(s, TRUE), flags, &exit_value);
+ test_address(string_copy_taint(exim_str_fail_toolong(s, EXIM_DISPLAYMAIL_MAX, "address verification (stdin)"), TRUE), flags, &exit_value);
}
route_tidyup();
- exim_exit(exit_value, US"main");
+ exim_exit(exit_value);
}
/* Handle expansion checking. Either expand items on the command line, or read
dns_init(FALSE, FALSE, FALSE);
if (msg_action_arg > 0 && msg_action == MSG_LOAD)
{
- uschar spoolname[256]; /* Not big_buffer; used in spool_read_header() */
+ uschar * spoolname;
if (!f.admin_user)
exim_fail("exim: permission denied\n");
- message_id = argv[msg_action_arg];
- (void)string_format(spoolname, sizeof(spoolname), "%s-H", message_id);
+ message_id = US exim_str_fail_toolong(argv[msg_action_arg], MESSAGE_ID_LENGTH, "message-id");
+ /* Checking the length of the ID is sufficient to validate it.
+ Get an untainted version so file opens can be done. */
+ message_id = string_copy_taint(message_id, FALSE);
+
+ spoolname = string_sprintf("%s-H", message_id);
if ((deliver_datafile = spool_open_datafile(message_id)) < 0)
printf ("Failed to load message datafile %s\n", message_id);
if (spool_read_header(spoolname, TRUE, FALSE) != spool_read_OK)
if (recipients_arg < argc)
while (recipients_arg < argc)
- expansion_test_line(argv[recipients_arg++]);
+ expansion_test_line(exim_str_fail_toolong(argv[recipients_arg++], EXIM_EMAILADDR_MAX, "recipient"));
/* Read stdin */
deliver_datafile = -1;
}
- exim_exit(EXIT_SUCCESS, US"main: expansion test");
+ exim_exit(EXIT_SUCCESS);
}
if (smtp_start_session())
{
+ rmark reset_point;
for (; (reset_point = store_mark()); store_reset(reset_point))
{
if (smtp_setup_msg() <= 0) break;
deliver_localpart_orig = NULL;
deliver_domain_orig = NULL;
callout_address = sending_ip_address = NULL;
+ deliver_localpart_data = deliver_domain_data =
+ recipient_data = sender_data = NULL;
sender_rate = sender_rate_limit = sender_rate_period = NULL;
}
smtp_log_no_mail();
}
- exim_exit(EXIT_SUCCESS, US"main");
+ exim_exit(EXIT_SUCCESS);
}
if (!smtp_start_session())
{
mac_smtp_fflush();
- exim_exit(EXIT_SUCCESS, US"smtp_start toplevel");
+ exim_exit(EXIT_SUCCESS);
}
}
if (!f.synchronous_delivery)
{
- #ifdef SA_NOCLDWAIT
+#ifdef SA_NOCLDWAIT
struct sigaction act;
act.sa_handler = SIG_IGN;
sigemptyset(&(act.sa_mask));
act.sa_flags = SA_NOCLDWAIT;
sigaction(SIGCHLD, &act, NULL);
- #else
+#else
signal(SIGCHLD, SIG_IGN);
- #endif
+#endif
}
/* Save the current store pool point, for resetting at the start of
messages to be read (SMTP input), or FALSE otherwise (not SMTP, or SMTP channel
collapsed). */
-while (more)
+for (BOOL more = TRUE; more; )
{
- reset_point = store_mark();
+ rmark reset_point = store_mark();
message_id[0] = 0;
/* Handle the SMTP case; call smtp_setup_mst() to deal with the initial SMTP
/* Now get the data for the message */
more = receive_msg(extract_recipients);
- if (message_id[0] == 0)
+ if (!message_id[0])
{
cancel_cutthrough_connection(TRUE, US"receive dropped");
- if (more) goto moreloop;
+ if (more) goto MORELOOP;
smtp_log_no_mail(); /* Log no mail if configured */
- exim_exit(EXIT_FAILURE, US"receive toplevel");
+ exim_exit(EXIT_FAILURE);
}
}
else
{
cancel_cutthrough_connection(TRUE, US"message setup dropped");
smtp_log_no_mail(); /* Log no mail if configured */
- exim_exit(rc ? EXIT_FAILURE : EXIT_SUCCESS, US"msg setup toplevel");
+ exim_exit(rc ? EXIT_FAILURE : EXIT_SUCCESS);
}
}
{
int start, end, domain;
uschar * errmess;
- uschar * s = string_copy_taint(list[i], TRUE);
+ /* There can be multiple addresses, so EXIM_DISPLAYMAIL_MAX (tuned for 1) is too short.
+ * We'll still want to cap it to something, just in case. */
+ uschar * s = string_copy_taint(exim_str_fail_toolong(list[i], BIG_BUFFER_SIZE, "address argument"), TRUE);
/* Loop for each comma-separated address */
if (error_handling == ERRORS_STDERR)
{
fprintf(stderr, "exim: too many recipients\n");
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
}
else
return
parse_extract_address(s, &errmess, &start, &end, &domain, FALSE);
#ifdef SUPPORT_I18N
- if (string_is_utf8(recipient))
- message_smtputf8 = TRUE;
- else
- allow_utf8_domains = b;
+ if (recipient)
+ if (string_is_utf8(recipient)) message_smtputf8 = TRUE;
+ else allow_utf8_domains = b;
}
+#else
+ ;
#endif
if (domain == 0 && !f.allow_unqualified_recipient)
{
errmess = US"unqualified recipient address not allowed";
}
- if (recipient == NULL)
- {
+ if (!recipient)
if (error_handling == ERRORS_STDERR)
{
fprintf(stderr, "exim: bad recipient address \"%s\": %s\n",
string_printing(list[i]), errmess);
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
}
else
{
moan_to_sender(ERRMESS_BADARGADDRESS, &eblock, NULL, stdin, TRUE)?
errors_sender_rc : EXIT_FAILURE;
}
- }
receive_add_recipient(string_copy_taint(recipient, TRUE), -1);
s = ss;
DEBUG(D_receive)
{
- if (sender_address != NULL) debug_printf("Sender: %s\n", sender_address);
- if (recipients_list != NULL)
+ if (sender_address) debug_printf("Sender: %s\n", sender_address);
+ if (recipients_list)
{
debug_printf("Recipients:\n");
for (int i = 0; i < recipients_count; i++)
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, US"main");
+ if (!message_id[0]) exim_exit(EXIT_FAILURE);
} /* Non-SMTP message reception */
/* If this is a filter testing run, there are headers in store, but
if (filter_test != FTEST_NONE)
{
- deliver_domain = (ftest_domain != NULL)?
- ftest_domain : qualify_domain_recipient;
+ deliver_domain = ftest_domain ? ftest_domain : qualify_domain_recipient;
deliver_domain_orig = deliver_domain;
- deliver_localpart = (ftest_localpart != NULL)?
- ftest_localpart : originator_login;
+ deliver_localpart = ftest_localpart ? US ftest_localpart : originator_login;
deliver_localpart_orig = deliver_localpart;
- deliver_localpart_prefix = ftest_prefix;
- deliver_localpart_suffix = ftest_suffix;
+ deliver_localpart_prefix = US ftest_prefix;
+ deliver_localpart_suffix = US ftest_suffix;
deliver_home = originator_home;
- if (return_path == NULL)
+ if (!return_path)
{
printf("Return-path copied from sender\n");
return_path = string_copy(sender_address);
receive_add_recipient(
string_sprintf("%s%s%s@%s",
- (ftest_prefix == NULL)? US"" : ftest_prefix,
+ ftest_prefix ? ftest_prefix : US"",
deliver_localpart,
- (ftest_suffix == NULL)? US"" : ftest_suffix,
+ ftest_suffix ? ftest_suffix : US"",
deliver_domain), -1);
printf("Recipient = %s\n", recipients_list[0].address);
- if (ftest_prefix != NULL) printf("Prefix = %s\n", ftest_prefix);
- if (ftest_suffix != NULL) printf("Suffix = %s\n", ftest_suffix);
+ if (ftest_prefix) printf("Prefix = %s\n", ftest_prefix);
+ if (ftest_suffix) printf("Suffix = %s\n", ftest_suffix);
if (chdir("/")) /* Get away from wherever the user is running this from */
{
DEBUG(D_receive) debug_printf("chdir(\"/\") failed\n");
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
}
/* Now we run either a system filter test, or a user filter test, or both.
available to the user filter. We need to copy the filter variables
explicitly. */
- if ((filter_test & FTEST_SYSTEM) != 0)
+ if (filter_test & FTEST_SYSTEM)
if (!filter_runtest(filter_sfd, filter_test_sfile, TRUE, more))
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
memcpy(filter_sn, filter_n, sizeof(filter_sn));
- if ((filter_test & FTEST_USER) != 0)
+ if (filter_test & FTEST_USER)
if (!filter_runtest(filter_ufd, filter_test_ufile, FALSE, more))
- exim_exit(EXIT_FAILURE, US"main");
+ exim_exit(EXIT_FAILURE);
- exim_exit(EXIT_SUCCESS, US"main");
+ exim_exit(EXIT_SUCCESS);
}
/* Else act on the result of message reception. We should not get here unless
will be TRUE. If it is not, check on the number of messages received in this
connection. */
- if (!session_local_queue_only &&
- smtp_accept_queue_per_connection > 0 &&
- receive_messagecount > smtp_accept_queue_per_connection)
+ if ( !session_local_queue_only
+ && smtp_accept_queue_per_connection > 0
+ && receive_messagecount > smtp_accept_queue_per_connection)
{
session_local_queue_only = TRUE;
queue_only_reason = 2;
ones. However, there are odd cases where this is not wanted, so this can be
changed by setting queue_only_load_latch false. */
- local_queue_only = session_local_queue_only;
- if (!local_queue_only && queue_only_load >= 0)
- {
- local_queue_only = (load_average = OS_GETLOADAVG()) > queue_only_load;
- if (local_queue_only)
+ if (!(local_queue_only = session_local_queue_only) && queue_only_load >= 0)
+ if ((local_queue_only = (load_average = OS_GETLOADAVG()) > queue_only_load))
{
queue_only_reason = 3;
if (queue_only_load_latch) session_local_queue_only = TRUE;
}
- }
/* If running as an MUA wrapper, all queueing options and freezing options
are ignored. */
pid_t pid;
search_tidyup();
- if ((pid = fork()) == 0)
+ if ((pid = exim_fork(US"local-accept-delivery")) == 0)
{
int rc;
close_unwanted(); /* Close unwanted file descriptors and TLS */
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, US"main");
+ if (mua_wrapper && (status & 0xffff) != 0) exim_exit(EXIT_FAILURE);
}
}
}
finished subprocesses here, in case there are lots of messages coming in
from the same source. */
- #ifndef SIG_IGN_WORKS
+#ifndef SIG_IGN_WORKS
while (waitpid(-1, NULL, WNOHANG) > 0);
- #endif
+#endif
-moreloop:
+MORELOOP:
return_path = sender_address = NULL;
authenticated_sender = NULL;
deliver_localpart_orig = NULL;
#endif
callout_address = NULL;
sending_ip_address = NULL;
+ deliver_localpart_data = deliver_domain_data =
+ recipient_data = sender_data = NULL;
acl_var_m = NULL;
for(int i = 0; i < REGEX_VARS; i++) regex_vars[i] = NULL;
store_reset(reset_point);
}
-exim_exit(EXIT_SUCCESS, US"main"); /* Never returns */
+exim_exit(EXIT_SUCCESS); /* Never returns */
return 0; /* To stop compiler warning */
}
git://git.exim.org / exim.git / blobdiff