* Exim - an Internet mail transport agent *
*************************************************/
+/* Copyright (c) The Exim Maintainers 2020 - 2023 */
/* Copyright (c) University of Cambridge 1995 - 2018 */
-/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* The main function: entry point, initialization, and high-level control.
# include <gnu/libc-version.h>
#endif
+#ifndef _TIME_H
+# include <time.h>
+#endif
+#ifndef NO_EXECINFO
+# include <execinfo.h>
+#endif
+
#ifdef USE_GNUTLS
# include <gnutls/gnutls.h>
# if GNUTLS_VERSION_NUMBER < 0x030103 && !defined(DISABLE_OCSP)
# endif
#endif
-#ifndef _TIME_H
-# include <time.h>
-#endif
-
extern void init_lookup_list(void);
for store allocation via Exim's store manager. The normal calls are actually
macros that pass over location information to make tracing easier. These
functions just interface to the standard macro calls. A good compiler will
-optimize out the tail recursion and so not make them too expensive. There
-are two sets of functions; one for use when we want to retain the compiled
-regular expression for a long time; the other for short-term use. */
+optimize out the tail recursion and so not make them too expensive. */
static void *
-function_store_get(size_t size)
+function_store_malloc(PCRE2_SIZE size, void * tag)
{
-/* For now, regard all RE results as potentially tainted. We might need
-more intelligence on this point. */
-return store_get((int)size, TRUE);
+if (size > INT_MAX)
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "excessive memory alloc request");
+return store_malloc((int)size);
}
static void
-function_dummy_free(void * block) {}
+function_store_free(void * block, void * tag)
+{
+/* At least some version of pcre2 pass a null pointer */
+if (block) store_free(block);
+}
+
static void *
-function_store_malloc(size_t size)
+function_store_get(PCRE2_SIZE size, void * tag)
{
-return store_malloc((int)size);
+if (size > INT_MAX)
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "excessive memory alloc request");
+return store_get((int)size, GET_UNTAINTED); /* loses track of taint */
}
static void
-function_store_free(void * block)
+function_store_nullfree(void * block, void * tag)
{
-store_free(block);
+/* We cannot free memory allocated using store_get() */
}
-/*************************************************
-* Compile regular expression and panic on fail *
-*************************************************/
-
-/* This function is called when failure to compile a regular expression leads
-to a panic exit. In other cases, pcre_compile() is called directly. In many
-cases where this function is used, the results of the compilation are to be
-placed in long-lived store, so we temporarily reset the store management
-functions that PCRE uses if the use_malloc flag is set.
-
-Argument:
- pattern the pattern to compile
- caseless TRUE if caseless matching is required
- use_malloc TRUE if compile into malloc store
+static void
+pcre_init(void)
+{
+pcre_mlc_ctx = pcre2_general_context_create(function_store_malloc, function_store_free, NULL);
+pcre_gen_ctx = pcre2_general_context_create(function_store_get, function_store_nullfree, NULL);
-Returns: pointer to the compiled pattern
-*/
+pcre_mlc_cmp_ctx = pcre2_compile_context_create(pcre_mlc_ctx);
+pcre_gen_cmp_ctx = pcre2_compile_context_create(pcre_gen_ctx);
-const pcre *
-regex_must_compile(const uschar *pattern, BOOL caseless, BOOL use_malloc)
-{
-int offset;
-int options = PCRE_COPT;
-const pcre *yield;
-const uschar *error;
-if (use_malloc)
- {
- pcre_malloc = function_store_malloc;
- pcre_free = function_store_free;
- }
-if (caseless) options |= PCRE_CASELESS;
-yield = pcre_compile(CCS pattern, options, CCSS &error, &offset, NULL);
-pcre_malloc = function_store_get;
-pcre_free = function_dummy_free;
-if (yield == NULL)
- log_write(0, LOG_MAIN|LOG_PANIC_DIE, "regular expression error: "
- "%s at offset %d while compiling %s", error, offset, pattern);
-return yield;
+pcre_gen_mtc_ctx = pcre2_match_context_create(pcre_gen_ctx);
}
*************************************************/
/* This function runs a regular expression match, and sets up the pointers to
-the matched substrings.
+the matched substrings. The matched strings are copied so the lifetime of
+the subject is not a problem. Matched strings will have the same taint status
+as the subject string (this is not a de-taint method, and must not be made so
+given the support for wildcards in REs).
Arguments:
re the compiled expression
if >= 0 setup from setup+1 onwards,
excluding the full matched string
-Returns: TRUE or FALSE
+Returns: TRUE if matched, or FALSE
*/
BOOL
-regex_match_and_setup(const pcre *re, const uschar *subject, int options, int setup)
+regex_match_and_setup(const pcre2_code * re, const uschar * subject, int options, int setup)
{
-int ovector[3*(EXPAND_MAXN+1)];
-uschar * s = string_copy(subject); /* de-constifying */
-int n = pcre_exec(re, NULL, CS s, Ustrlen(s), 0,
- PCRE_EOPT | options, ovector, nelem(ovector));
-BOOL yield = n >= 0;
-if (n == 0) n = EXPAND_MAXN + 1;
-if (yield)
+pcre2_match_data * md = pcre2_match_data_create_from_pattern(re, pcre_gen_ctx);
+int res = pcre2_match(re, (PCRE2_SPTR)subject, PCRE2_ZERO_TERMINATED, 0,
+ PCRE_EOPT | options, md, pcre_gen_mtc_ctx);
+BOOL yield;
+
+if ((yield = (res >= 0)))
{
+ PCRE2_SIZE * ovec = pcre2_get_ovector_pointer(md);
+ res = pcre2_get_ovector_count(md);
expand_nmax = setup < 0 ? 0 : setup + 1;
- for (int nn = setup < 0 ? 0 : 2; nn < n*2; nn += 2)
+ for (int matchnum = setup < 0 ? 0 : 1; matchnum < res; matchnum++)
{
- expand_nstring[expand_nmax] = s + ovector[nn];
- expand_nlength[expand_nmax++] = ovector[nn+1] - ovector[nn];
+ /* Although PCRE2 has a pcre2_substring_get_bynumber() conveneience, it
+ seems to return a bad pointer when a capture group had no data, eg. (.*)
+ matching zero letters. So use the underlying ovec and hope (!) that the
+ offsets are sane (including that case). Should we go further and range-
+ check each one vs. the subject string length? */
+ int off = matchnum * 2;
+ int len = ovec[off + 1] - ovec[off];
+ expand_nstring[expand_nmax] = string_copyn(subject + ovec[off], len);
+ expand_nlength[expand_nmax++] = len;
}
expand_nmax--;
}
+else if (res != PCRE2_ERROR_NOMATCH) DEBUG(D_any)
+ {
+ uschar errbuf[128];
+ pcre2_get_error_message(res, errbuf, sizeof(errbuf));
+ debug_printf_indent("pcre2: %s\n", errbuf);
+ }
+/* pcre2_match_data_free(md); gen ctx needs no free */
return yield;
}
+/* Check just for match with regex. Uses the common memory-handling.
+
+Arguments:
+ re compiled regex
+ subject string to be checked
+ slen length of subject; -1 for nul-terminated
+ rptr pointer for matched string, copied, or NULL
+
+Return: TRUE for a match.
+*/
+
+BOOL
+regex_match(const pcre2_code * re, const uschar * subject, int slen, uschar ** rptr)
+{
+pcre2_match_data * md = pcre2_match_data_create(1, pcre_gen_ctx);
+int rc = pcre2_match(re, (PCRE2_SPTR)subject,
+ slen >= 0 ? slen : PCRE2_ZERO_TERMINATED,
+ 0, PCRE_EOPT, md, pcre_gen_mtc_ctx);
+PCRE2_SIZE * ovec = pcre2_get_ovector_pointer(md);
+BOOL ret = FALSE;
+
+if (rc >= 0)
+ {
+ if (rptr)
+ *rptr = string_copyn(subject + ovec[0], ovec[1] - ovec[0]);
+ ret = TRUE;
+ }
+/* pcre2_match_data_free(md); gen ctx needs no free */
+return ret;
+}
+
/*************************************************
*/
void
-set_process_info(const char *format, ...)
+set_process_info(const char * format, ...)
{
gstring gs = { .size = PROCESS_INFO_SIZE - 2, .ptr = 0, .s = process_info };
gstring * g;
int len;
+uschar * s;
va_list ap;
g = string_fmt_append(&gs, "%5d ", (int)getpid());
-len = g->ptr;
+len = gstring_length(g);
va_start(ap, format);
if (!string_vformat(g, 0, format, ap))
{
g = string_cat(&gs, US"**** string overflowed buffer ****");
}
g = string_catn(g, US"\n", 1);
-string_from_gstring(g);
-process_info_len = g->ptr;
+process_info_len = len_string_from_gstring(g, &s);
DEBUG(D_process_info) debug_printf("set_process_info: %s", process_info);
va_end(ap);
}
}
+/***********************************************
+* Handler for SIGSEGV *
+***********************************************/
+
+#define STACKDUMP_MAX 24
+void
+stackdump(void)
+{
+#ifndef NO_EXECINFO
+void * buf[STACKDUMP_MAX];
+char ** ss;
+int nptrs = backtrace(buf, STACKDUMP_MAX);
+
+log_write(0, LOG_MAIN|LOG_PANIC, "backtrace");
+log_write(0, LOG_MAIN|LOG_PANIC, "---");
+if ((ss = backtrace_symbols(buf, nptrs)))
+ {
+ for (int i = 0; i < nptrs; i++)
+ log_write(0, LOG_MAIN|LOG_PANIC, "\t%s", ss[i]);
+ free(ss);
+ }
+else
+ log_write(0, LOG_MAIN|LOG_PANIC, "backtrace_symbols: %s", strerror(errno));
+log_write(0, LOG_MAIN|LOG_PANIC, "---");
+#endif
+}
+#undef STACKDUMP_MAX
+
+
+static void
+#ifdef SA_SIGINFO
+segv_handler(int sig, siginfo_t * info, void * uctx)
+{
+log_write(0, LOG_MAIN|LOG_PANIC, "SIGSEGV (fault address: %p)", info->si_addr);
+# if defined(SEGV_MAPERR) && defined(SEGV_ACCERR) && defined(SEGV_BNDERR) && defined(SEGV_PKUERR)
+switch (info->si_code)
+ {
+ case SEGV_MAPERR: log_write(0, LOG_MAIN|LOG_PANIC, "SEGV_MAPERR"); break;
+ case SEGV_ACCERR: log_write(0, LOG_MAIN|LOG_PANIC, "SEGV_ACCERR"); break;
+ case SEGV_BNDERR: log_write(0, LOG_MAIN|LOG_PANIC, "SEGV_BNDERR"); break;
+ case SEGV_PKUERR: log_write(0, LOG_MAIN|LOG_PANIC, "SEGV_PKUERR"); break;
+ }
+# endif
+if (US info->si_addr < US 4096)
+ log_write(0, LOG_MAIN|LOG_PANIC, "SIGSEGV (null pointer indirection)");
+else
+ log_write(0, LOG_MAIN|LOG_PANIC, "SIGSEGV (maybe attempt to write to immutable memory)");
+if (process_info_len > 0)
+ log_write(0, LOG_MAIN|LOG_PANIC, "SIGSEGV (%.*s)", process_info_len, process_info);
+stackdump();
+signal(SIGSEGV, SIG_DFL);
+kill(getpid(), sig);
+}
+
+#else
+segv_handler(int sig)
+{
+log_write(0, LOG_MAIN|LOG_PANIC, "SIGSEGV (maybe attempt to write to immutable memory)");
+if (process_info_len > 0)
+ log_write(0, LOG_MAIN|LOG_PANIC, "SIGSEGV (%.*s)", process_info_len, process_info);
+stackdump();
+signal(SIGSEGV, SIG_DFL);
+kill(getpid(), sig);
+}
+#endif
+
+
/*************************************************
* Handler for SIGUSR1 *
*************************************************/
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;
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);
now_true_usec = now_tv.tv_usec;
now_tv.tv_usec = (now_true_usec/resolution) * resolution;
}
+*prev_tv = now_tv;
}
*/
void
-exim_setugid(uid_t uid, gid_t gid, BOOL igflag, uschar *msg)
+exim_setugid(uid_t uid, gid_t gid, BOOL igflag, const uschar * msg)
{
uid_t euid = geteuid();
gid_t egid = getegid();
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
+va_end(ap);
exit(EXIT_FAILURE);
}
/* fail if a length is too long */
static inline void
-exim_len_fail_toolong(int itemlen, int maxlen, const char *description)
+exim_len_fail_toolong(int itemlen, int maxlen, const char * description)
{
if (itemlen <= maxlen)
return;
/* 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_str_fail_toolong(const uschar * item, int maxlen, const char * description)
{
+if (!item)
+ exim_fail("exim: bad item for: %s\n", description);
exim_len_fail_toolong(Ustrlen(item), maxlen, description);
return item;
}
struct stat buf;
if (0 == (fd < 0 ? stat(name, &buf) : fstat(fd, &buf)))
-{
+ {
if (buf.st_uid == owner && buf.st_gid == group) return 0;
log_write(0, LOG_MAIN|LOG_PANIC, "Wrong ownership on %s", name);
-}
+ }
else log_write(0, LOG_MAIN|LOG_PANIC, "Stat failed on %s: %s", name, strerror(errno));
#endif
}
+/* Bump the index for argv, checking for overflow,
+and return the argument. */
+
+static const uschar *
+next_argv(const uschar ** argv, int * pi, int argc, const uschar * where)
+{
+int i = *pi;
+if (++i >= argc) exim_fail("exim: bad item for: %s\n", where);
+return argv[*pi = i];
+}
+
+
/*************************************************
* Extract port from host address *
*************************************************/
int rc = verify_address(deliver_make_addr(address,TRUE), stdout, flags, -1,
-1, -1, NULL, NULL, NULL);
if (rc == FAIL) *exit_value = 2;
- else if (rc == DEFER && *exit_value == 0) *exit_value = 1;
+ else if (rc == DEFER && *exit_value == 0) *exit_value = 1;
}
}
*************************************************/
static void
-show_db_version(FILE * f)
+show_string(BOOL is_stdout, gstring * g)
+{
+const uschar * s = string_from_gstring(g);
+if (s)
+ if (is_stdout) fputs(CCS s, stdout);
+ else debug_printf("%s", s);
+}
+
+
+static gstring *
+show_db_version(gstring * g)
{
#ifdef DB_VERSION_STRING
DEBUG(D_any)
{
- fprintf(f, "Library version: BDB: Compile: %s\n", DB_VERSION_STRING);
- fprintf(f, " Runtime: %s\n",
+ g = string_fmt_append(g, "Library version: BDB: Compile: %s\n", DB_VERSION_STRING);
+ g = string_fmt_append(g, " Runtime: %s\n",
db_version(NULL, NULL, NULL));
}
else
- fprintf(f, "Berkeley DB: %s\n", DB_VERSION_STRING);
+ g = string_fmt_append(g, "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
+# ifdef USE_DB
+ g = string_cat(g, US"Probably Berkeley DB version 1.8x (native mode)\n");
+# else
+ g = string_cat(g, US"Probably Berkeley DB version 1.8x (compatibility mode)\n");
+# endif
#elif defined(_DBM_RDONLY) || defined(dbm_dirfno)
-fprintf(f, "Probably ndbm\n");
+g = string_cat(g, US"Probably ndbm\n");
#elif defined(USE_TDB)
-fprintf(f, "Using tdb\n");
+g = string_cat(g, US"Using tdb\n");
#else
- #ifdef USE_GDBM
- fprintf(f, "Probably GDBM (native mode)\n");
- #else
- fprintf(f, "Probably GDBM (compatibility mode)\n");
- #endif
+# ifdef USE_GDBM
+ g = string_cat(g, US"Probably GDBM (native mode)\n");
+# else
+ g = string_cat(g, US"Probably GDBM (compatibility mode)\n");
+# endif
#endif
+return g;
}
/* 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
+Arguments: BOOL, true for stdout else debug channel
Returns: nothing
*/
static void
-show_whats_supported(FILE * fp)
+show_whats_supported(BOOL is_stdout)
{
rmark reset_point = store_mark();
-gstring * g;
-DEBUG(D_any) {} else show_db_version(fp);
+gstring * g = NULL;
+
+DEBUG(D_any) {} else g = show_db_version(g);
-g = string_cat(NULL, US"Support for:");
+g = string_cat(g, US"Support for:");
+#ifdef WITH_CONTENT_SCAN
+ g = string_cat(g, US" Content_Scanning");
+#endif
#ifdef SUPPORT_CRYPTEQ
g = string_cat(g, US" crypteq");
#endif
+#ifdef EXPAND_DLFUNC
+ g = string_cat(g, US" Expand_dlfunc");
+#endif
#if HAVE_ICONV
g = string_cat(g, US" iconv()");
#endif
#if HAVE_IPV6
g = string_cat(g, US" IPv6");
#endif
-#ifdef HAVE_SETCLASSRESOURCES
- g = string_cat(g, US" use_setclassresources");
-#endif
#ifdef SUPPORT_PAM
g = string_cat(g, US" PAM");
#endif
#ifdef EXIM_PERL
g = string_cat(g, US" Perl");
#endif
-#ifdef EXPAND_DLFUNC
- g = string_cat(g, US" Expand_dlfunc");
-#endif
-#ifdef USE_TCP_WRAPPERS
- g = string_cat(g, US" TCPwrappers");
-#endif
#ifdef USE_GNUTLS
g = string_cat(g, US" GnuTLS");
#endif
+#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
+ g = string_cat(g, US" move_frozen_messages");
+#endif
#ifdef USE_OPENSSL
g = string_cat(g, US" OpenSSL");
#endif
+#if defined(CYRUS_PWCHECK_SOCKET)
+ g = string_cat(g, US" pwcheck");
+#endif
+#if defined(RADIUS_CONFIG_FILE)
+ g = string_cat(g, US" radius");
+#endif
#ifndef DISABLE_TLS_RESUME
g = string_cat(g, US" TLS_resume");
#endif
#ifdef SUPPORT_TRANSLATE_IP_ADDRESS
g = string_cat(g, US" translate_ip_address");
#endif
-#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
- g = string_cat(g, US" move_frozen_messages");
+#ifdef USE_TCP_WRAPPERS
+ g = string_cat(g, US" TCPwrappers");
#endif
-#ifdef WITH_CONTENT_SCAN
- g = string_cat(g, US" Content_Scanning");
+#ifdef HAVE_SETCLASSRESOURCES
+ g = string_cat(g, US" use_setclassresources");
#endif
#ifdef SUPPORT_DANE
g = string_cat(g, US" DANE");
#ifndef DISABLE_DNSSEC
g = string_cat(g, US" DNSSEC");
#endif
+#ifndef DISABLE_ESMTP_LIMITS
+ g = string_cat(g, US" ESMTP_Limits");
+#endif
#ifndef DISABLE_EVENT
g = string_cat(g, US" Event");
#endif
g = string_cat(g, US" OCSP");
#endif
#ifndef DISABLE_PIPE_CONNECT
- g = string_cat(g, US" PIPE_CONNECT");
+ g = string_cat(g, US" PIPECONNECT");
#endif
#ifndef DISABLE_PRDR
g = string_cat(g, US" PRDR");
g = string_cat(g, US" PROXY");
#endif
#ifndef DISABLE_QUEUE_RAMP
- g = string_cat(g, US" Experimental_Queue_Ramp");
+ g = string_cat(g, US" Queue_Ramp");
#endif
#ifdef SUPPORT_SOCKS
g = string_cat(g, US" SOCKS");
#ifdef 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_QUEUEFILE
g = string_cat(g, US" Experimental_QUEUEFILE");
#endif
-#if defined(EXPERIMENTAL_SRS_ALT)
- g = string_cat(g, US" Experimental_SRS");
+#ifdef EXPERIMENTAL_XCLIENT
+ g = string_cat(g, US" Experimental_XCLIENT");
#endif
g = string_cat(g, US"\n");
#ifdef WITH_CONTENT_SCAN
g = malware_show_supported(g);
#endif
+show_string(is_stdout, g); g = NULL;
if (fixed_never_users[0] > 0)
{
}
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));
+g = string_fmt_append(g, "Size of off_t: " SIZE_T_FMT "\n", sizeof(off_t));
/* Everything else is details which are only worth reporting when debugging.
Perhaps the tls_version_report should move into this too. */
-DEBUG(D_any) do {
+DEBUG(D_any)
+ {
/* clang defines __GNUC__ (at least, for me) so test for it first */
#if defined(__clang__)
- fprintf(fp, "Compiler: CLang [%s]\n", __clang_version__);
+ g = string_fmt_append(g, "Compiler: CLang [%s]\n", __clang_version__);
#elif defined(__GNUC__)
- fprintf(fp, "Compiler: GCC [%s]\n",
# ifdef __VERSION__
- __VERSION__
+ g = string_fmt_append(g, "Compiler: GCC [%s]\n", __VERSION__);
# else
- "? unknown version ?"
+ g = string_fmt_append(g, "Compiler: GCC [%s]\n", "? unknown version ?";
# endif
- );
#else
- fprintf(fp, "Compiler: <unknown>\n");
+ g = string_cat(g, US"Compiler: <unknown>\n");
#endif
#if defined(__GLIBC__) && !defined(__UCLIBC__)
- fprintf(fp, "Library version: Glibc: Compile: %d.%d\n",
+ g = string_fmt_append(g, "Library version: Glibc: Compile: %d.%d\n",
__GLIBC__, __GLIBC_MINOR__);
if (__GLIBC_PREREQ(2, 1))
- fprintf(fp, " Runtime: %s\n",
+ g = string_fmt_append(g, " Runtime: %s\n",
gnu_get_libc_version());
#endif
-show_db_version(fp);
+g = show_db_version(g);
#ifndef DISABLE_TLS
- tls_version_report(fp);
+ g = tls_version_report(g);
#endif
#ifdef SUPPORT_I18N
- utf8_version_report(fp);
+ g = utf8_version_report(g);
#endif
#ifdef SUPPORT_DMARC
- dmarc_version_report(fp);
+ g = dmarc_version_report(g);
#endif
#ifdef SUPPORT_SPF
- spf_lib_version_report(fp);
+ g = spf_lib_version_report(g);
#endif
- for (auth_info * authi = auths_available; *authi->driver_name != '\0'; ++authi)
- if (authi->version_report)
- (*authi->version_report)(fp);
+show_string(is_stdout, g);
+g = NULL;
+
+for (auth_info * authi = auths_available; *authi->driver_name != '\0'; ++authi)
+ if (authi->version_report)
+ g = (*authi->version_report)(g);
/* PCRE_PRERELEASE is either defined and empty or a bare sequence of
characters; unless it's an ancient version of PCRE in which case it
#endif
#define QUOTE(X) #X
#define EXPAND_AND_QUOTE(X) QUOTE(X)
- fprintf(fp, "Library version: PCRE: Compile: %d.%d%s\n"
- " Runtime: %s\n",
- PCRE_MAJOR, PCRE_MINOR,
- EXPAND_AND_QUOTE(PCRE_PRERELEASE) "",
- pcre_version());
+ {
+ uschar buf[24];
+ pcre2_config(PCRE2_CONFIG_VERSION, buf);
+ g = string_fmt_append(g, "Library version: PCRE2: Compile: %d.%d%s\n"
+ " Runtime: %s\n",
+ PCRE2_MAJOR, PCRE2_MINOR,
+ EXPAND_AND_QUOTE(PCRE2_PRERELEASE) "",
+ buf);
+ }
#undef QUOTE
#undef EXPAND_AND_QUOTE
- init_lookup_list();
- for (int i = 0; i < lookup_list_count; i++)
- if (lookup_list[i]->version_report)
- lookup_list[i]->version_report(fp);
+show_string(is_stdout, g);
+g = NULL;
+
+init_lookup_list();
+for (int i = 0; i < lookup_list_count; i++)
+ if (lookup_list[i]->version_report)
+ g = lookup_list[i]->version_report(g);
+show_string(is_stdout, g);
+g = NULL;
#ifdef WHITELIST_D_MACROS
- fprintf(fp, "WHITELIST_D_MACROS: \"%s\"\n", WHITELIST_D_MACROS);
+ g = string_fmt_append(g, "WHITELIST_D_MACROS: \"%s\"\n", WHITELIST_D_MACROS);
#else
- fprintf(fp, "WHITELIST_D_MACROS unset\n");
+ g = string_cat(g, US"WHITELIST_D_MACROS unset\n");
#endif
#ifdef TRUSTED_CONFIG_LIST
- fprintf(fp, "TRUSTED_CONFIG_LIST: \"%s\"\n", TRUSTED_CONFIG_LIST);
+ g = string_fmt_append(g, "TRUSTED_CONFIG_LIST: \"%s\"\n", TRUSTED_CONFIG_LIST);
#else
- fprintf(fp, "TRUSTED_CONFIG_LIST unset\n");
+ g = string_cat(g, US"TRUSTED_CONFIG_LIST unset\n");
#endif
+ }
-} while (0);
+show_string(is_stdout, g);
store_reset(reset_point);
}
Returns: the local part, quoted if necessary
*/
-uschar *
-local_part_quote(uschar *lpart)
+const uschar *
+local_part_quote(const uschar * lpart)
{
BOOL needs_quote = FALSE;
gstring * g;
-for (uschar * t = lpart; !needs_quote && *t != 0; t++)
- {
+for (const uschar * t = lpart; !needs_quote && *t; t++)
needs_quote = !isalnum(*t) && strchr("!#$%&'*+-/=?^_`{|}~", *t) == NULL &&
(*t != '.' || t == lpart || t[1] == 0);
- }
if (!needs_quote) return lpart;
for (;;)
{
- uschar *nq = US Ustrpbrk(lpart, "\\\"");
- if (nq == NULL)
+ uschar * nq = US Ustrpbrk(lpart, "\\\"");
+ if (!nq)
{
g = string_cat(g, lpart);
break;
get_stdinput(char *(*fn_readline)(const char *), void(*fn_addhist)(const char *))
{
gstring * g = NULL;
+BOOL had_input = FALSE;
if (!fn_readline) { printf("> "); fflush(stdout); }
for (int i = 0;; i++)
{
uschar buffer[1024];
- uschar *p, *ss;
+ uschar * p, * ss;
- #ifdef USE_READLINE
+#ifdef USE_READLINE
char *readline_line = NULL;
if (fn_readline)
{
if (!(readline_line = fn_readline((i > 0)? "":"> "))) break;
- if (*readline_line != 0 && fn_addhist) fn_addhist(readline_line);
+ if (*readline_line && fn_addhist) fn_addhist(readline_line);
p = US readline_line;
}
else
- #endif
+#endif
/* readline() not in use */
{
- if (Ufgets(buffer, sizeof(buffer), stdin) == NULL) break;
+ if (Ufgets(buffer, sizeof(buffer), stdin) == NULL) break; /*EOF*/
p = buffer;
}
/* Handle the line */
- ss = p + (int)Ustrlen(p);
- while (ss > p && isspace(ss[-1])) ss--;
+ had_input = TRUE;
+ ss = p + Ustrlen(p);
+ while (ss > p && isspace(ss[-1])) ss--; /* strip trailing newline (and spaces) */
if (i > 0)
- while (p < ss && isspace(*p)) p++; /* leading space after cont */
+ while (p < ss && isspace(*p)) p++; /* strip leading space after cont */
g = string_catn(g, p, ss - p);
- #ifdef USE_READLINE
+#ifdef USE_READLINE
if (fn_readline) free(readline_line);
- #endif
+#endif
/* g can only be NULL if ss==p */
- if (ss == p || g->s[g->ptr-1] != '\\')
+ if (ss == p || gstring_last_char(g) != '\\') /* not continuation; done */
break;
- --g->ptr;
- (void) string_from_gstring(g);
+ gstring_trim(g, 1); /* drop the \ */
}
-if (!g) printf("\n");
-return string_from_gstring(g);
+if (had_input) return g ? string_from_gstring(g) : US"";
+printf("\n");
+return NULL;
}
*/
static void
-exim_usage(uschar *progname)
+exim_usage(const uschar * progname)
{
/* Handle specific program invocation variants */
continue;
if ((len = m->replen) == 0)
continue;
- n = pcre_exec(regex_whitelisted_macro, NULL, CS m->replacement, len,
- 0, PCRE_EOPT, NULL, 0);
- if (n < 0)
- {
- if (n != PCRE_ERROR_NOMATCH)
- debug_printf("macros_trusted checking %s returned %d\n", m->name, n);
+ if (!regex_match(regex_whitelisted_macro, m->replacement, len, NULL))
return FALSE;
- }
}
DEBUG(D_any) debug_printf("macros_trusted overridden to true by whitelisting\n");
return TRUE;
if (macro_read_assignment(big_buffer))
printf("Defined macro '%s'\n", mlast->name);
}
+else if (Ustrncmp(big_buffer, "set,t ", 6) == 0)
+ printf("%s\n", acl_standalone_setvar(big_buffer+6, TRUE));
+else if (Ustrncmp(big_buffer, "set ", 4) == 0)
+ printf("%s\n", acl_standalone_setvar(big_buffer+4, FALSE));
else
if ((s = expand_string(big_buffer))) printf("%s\n", CS s);
else printf("Failed: %s\n", expand_string_message);
+/*************************************************
+* Queue-runner operations *
+*************************************************/
+
+/* Prefix a new qrunner descriptor to the qrunners list */
+
+static qrunner *
+alloc_qrunner(void)
+{
+qrunner * q = qrunners;
+qrunners = store_get(sizeof(qrunner), GET_UNTAINTED);
+memset(qrunners, 0, sizeof(qrunner)); /* default queue, zero interval */
+qrunners->next = q;
+qrunners->next_tick = time(NULL); /* run right away */
+return qrunners;
+}
+
+static qrunner *
+alloc_onetime_qrunner(void)
+{
+qrunners = store_get_perm(sizeof(qrunner), GET_UNTAINTED);
+memset(qrunners, 0, sizeof(qrunner)); /* default queue, zero interval */
+qrunners->next_tick = time(NULL); /* run right away */
+qrunners->run_max = 1;
+return qrunners;
+}
+
+
/*************************************************
* Entry point and high-level code *
*************************************************/
*/
int
-main(int argc, char **cargv)
+main(int argc, char ** cargv)
{
-uschar **argv = USS cargv;
+const uschar ** argv = CUSS cargv;
int arg_receive_timeout = -1;
int arg_smtp_receive_timeout = -1;
int arg_error_handling = error_handling;
int filter_ufd = -1;
int group_count;
int i, rv;
-int list_queue_option = 0;
+int list_queue_option = QL_BASIC;
int msg_action = 0;
int msg_action_arg = -1;
-int namelen = (argv[0] == NULL)? 0 : Ustrlen(argv[0]);
+int namelen = argv[0] ? Ustrlen(argv[0]) : 0;
int queue_only_reason = 0;
#ifdef EXIM_PERL
int perl_start_option = 0;
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 verify_as_sender = FALSE;
BOOL rcpt_verify_quota = FALSE;
BOOL version_printed = FALSE;
-uschar *alias_arg = NULL;
-uschar *called_as = US"";
-uschar *cmdline_syslog_name = NULL;
-uschar *start_queue_run_id = NULL;
-uschar *stop_queue_run_id = NULL;
-uschar *expansion_test_message = 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"/";
+const uschar * alias_arg = NULL;
+const uschar * called_as = US"";
+const uschar * cmdline_syslog_name = NULL;
+const uschar * start_queue_run_id = NULL;
+const uschar * stop_queue_run_id = NULL;
+const uschar * expansion_test_message = 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;
+const uschar * malware_test_file = NULL;
+const uschar * real_sender_address;
+uschar * originator_home = US"/";
size_t sz;
struct passwd *pw;
#endif
store_init(); /* Initialise the memory allocation susbsystem */
+pcre_init(); /* Set up memory handling for pcre */
/* 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.
debug_store = TRUE;
/* Protect against abusive argv[0] */
+if (!argv[0] || !argc) exim_fail("exim: executable name required\n");
exim_str_fail_toolong(argv[0], PATH_MAX, "argv[0]");
/* The C standard says that the equivalent of setlocale(LC_ALL, "C") is obeyed
if (fstat(fileno(stderr), &statbuf) >= 0) log_stderr = stderr;
-/* Arrange for the PCRE regex library to use our store functions. Note that
-the normal calls are actually macros that add additional arguments for
-debugging purposes so we have to assign specially constructed functions here.
-The default is to use store in the stacking pool, but this is overridden in the
-regex_must_compile() function. */
-
-pcre_malloc = function_store_get;
-pcre_free = function_dummy_free;
-
/* Ensure there is a big buffer for temporary use in several places. It is put
in malloc store so that it can be freed for enlargement if necessary. */
/* Set up the handler for the data request signal, and set the initial
descriptive text. */
-process_info = store_get(PROCESS_INFO_SIZE, TRUE); /* tainted */
+process_info = store_get(PROCESS_INFO_SIZE, GET_TAINTED);
set_process_info("initializing");
-os_restarting_signal(SIGUSR1, usr1_handler);
+os_restarting_signal(SIGUSR1, usr1_handler); /* exiwhat */
+#ifdef SA_SIGINFO
+ {
+ struct sigaction act = { .sa_sigaction = segv_handler, .sa_flags = SA_RESETHAND | SA_SIGINFO };
+ sigaction(SIGSEGV, &act, NULL);
+ }
+#else
+signal(SIGSEGV, segv_handler); /* log faults */
+#endif
/* 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 */
+
if (getpid() == 1) signal(SIGTERM, term_handler);
/* SIGHUP is used to get the daemon to reconfigure. It gets set as appropriate
using mac_ismsgid, which uses this. */
regex_ismsgid =
- regex_must_compile(US"^(?:[^\\W_]{6}-){2}[^\\W_]{2}$", FALSE, TRUE);
+ regex_must_compile(US"^(?:"
+ "[^\\W_]{" str(MESSAGE_ID_TIME_LEN) "}"
+ "-[^\\W_]{" str(MESSAGE_ID_PID_LEN) "}"
+ "-[^\\W_]{" str(MESSAGE_ID_SUBTIME_LEN) "}"
+ "|"
+ "(?:[^\\W_]{6}-){2}[^\\W_]{2}" /* old ID format */
+ ")$",
+ MCS_NOFLAGS, TRUE);
/* Precompile the regular expression that is used for matching an SMTP error
code, possibly extended, at the start of an error message. Note that the
regex_smtp_code =
regex_must_compile(US"^\\d\\d\\d\\s(?:\\d\\.\\d\\d?\\d?\\.\\d\\d?\\d?\\s)?",
- FALSE, TRUE);
+ MCS_NOFLAGS, TRUE);
#ifdef WHITELIST_D_MACROS
/* Precompile the regular expression used to filter the content of macros
given to -D for permissibility. */
regex_whitelisted_macro =
- regex_must_compile(US"^[A-Za-z0-9_/.-]*$", FALSE, TRUE);
+ regex_must_compile(US"^[A-Za-z0-9_/.-]*$", MCS_NOFLAGS, TRUE);
#endif
-for (i = 0; i < REGEX_VARS; i++) regex_vars[i] = NULL;
-
/* If the program is called as "mailq" treat it as equivalent to "exim -bp";
this seems to be a generally accepted convention, since one finds symbolic
links called "mailq" in standard OS configurations. */
if ((namelen == 4 && Ustrcmp(argv[0], "runq") == 0) ||
(namelen > 4 && Ustrncmp(argv[0] + namelen - 5, "/runq", 5) == 0))
{
- queue_interval = 0;
+ alloc_onetime_qrunner();
receiving_message = FALSE;
called_as = US"-runq";
}
for (i = 1; i < argc; i++)
{
BOOL badarg = FALSE;
- uschar * arg = argv[i];
- uschar * argrest;
- int switchchar;
+ const uschar * arg = argv[i];
+ const uschar * argrest;
+ uschar switchchar;
/* An argument not starting with '-' is the start of a recipients list;
break out of the options-scanning loop. */
-bdf: Ditto, but in the foreground.
*/
case 'd':
- f.daemon_listen = TRUE;
+ f.daemon_listen = f.daemon_scion = TRUE;
if (*argrest == 'f') f.background_daemon = FALSE;
else if (*argrest) badarg = TRUE;
break;
/* -bh: Host checking - an IP address must follow. */
case 'h':
- if (!*argrest || Ustrcmp(argrest, "c") == 0)
+ if ( (!*argrest || Ustrcmp(argrest, "c") == 0)
+ && ++i < argc)
{
- if (++i >= argc) { badarg = TRUE; break; }
- sender_host_address = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_IPADDR_MAX, "-bh"), TRUE);
+ sender_host_address = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_IPADDR_MAX, "-bh"),
+ GET_TAINTED);
host_checking = checking = f.log_testing_mode = TRUE;
f.host_checking_callout = *argrest == 'c';
message_logs = FALSE;
}
- else badarg = TRUE;
+ else
+ badarg = TRUE;
break;
/* -bi: This option is used by sendmail to initialize *the* alias file,
case 'I':
if (Ustrlen(argrest) >= 1 && *argrest == ':')
{
- uschar *p = argrest+1;
+ const uschar * p = argrest+1;
info_flag = CMDINFO_HELP;
if (Ustrlen(p))
if (strcmpic(p, CUS"sieve") == 0)
}
if (*argrest == 'r')
- {
- list_queue_option = 8;
- argrest++;
- }
- else list_queue_option = 0;
+ list_queue_option = QL_UNSORTED, argrest++;
+ else
+ list_queue_option = QL_BASIC;
list_queue = TRUE;
/* -bpu: List the contents of the mail queue, top-level undelivered */
- else if (Ustrcmp(argrest, "u") == 0) list_queue_option += 1;
+ else if (Ustrcmp(argrest, "u") == 0) list_queue_option |= QL_UNDELIVERED_ONLY;
/* -bpa: List the contents of the mail queue, including all delivered */
- else if (Ustrcmp(argrest, "a") == 0) list_queue_option += 2;
+ else if (Ustrcmp(argrest, "a") == 0) list_queue_option |= QL_PLUS_GENERATED;
+
+ /* -bpi: List only message IDs */
+
+ else if (Ustrcmp(argrest, "i") == 0) list_queue_option |= QL_MSGID_ONLY;
/* Unknown after -bp[r] */
version_cnumber, version_date);
printf("%s\n", CS version_copyright);
version_printed = TRUE;
- show_whats_supported(stdout);
+ show_whats_supported(TRUE);
f.log_testing_mode = TRUE;
}
else badarg = TRUE;
case 'w':
f.inetd_wait_mode = TRUE;
f.background_daemon = FALSE;
- f.daemon_listen = TRUE;
+ f.daemon_listen = f.daemon_scion = TRUE;
if (*argrest)
if ((inetd_wait_timeout = readconf_readtime(argrest, 0, FALSE)) <= 0)
exim_fail("exim: bad time value %s: abandoned\n", argv[i]);
reset_point = store_mark();
while (Ufgets(big_buffer, big_buffer_size, trust_list))
{
- uschar *start = big_buffer, *nl;
- while (*start && isspace(*start))
- start++;
- if (*start != '/')
+ uschar * start = big_buffer, * nl;
+ if (Uskip_whitespace(&start) != '/')
continue;
- nl = Ustrchr(start, '\n');
- if (nl)
- *nl = 0;
+ if ((nl = Ustrchr(start, '\n')))
+ *nl = '\0';
trusted_configs[nr_configs++] = string_copy(start);
if (nr_configs == nelem(trusted_configs))
break;
#else
{
int ptr = 0;
- macro_item *m;
+ macro_item * m;
uschar name[24];
- uschar *s = argrest;
+ const uschar * s = argrest;
opt_D_used = TRUE;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s < 'A' || *s > 'Z')
exim_fail("exim: macro name set by -D must start with "
}
name[ptr] = 0;
if (ptr == 0) { badarg = TRUE; break; }
- while (isspace(*s)) s++;
- if (*s != 0)
+ if (Uskip_whitespace(&s))
{
if (*s++ != '=') { badarg = TRUE; break; }
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
}
for (m = macros_user; m; m = m->next)
#endif
break;
- /* -d: Set debug level (see also -v below) or set the drop_cr option.
- The latter is now a no-op, retained for compatibility only. If -dd is used,
- debugging subprocesses of the daemon is disabled. */
-
case 'd':
+
+ /* -dropcr: Set this option. Now a no-op, retained for compatibility only. */
+
if (Ustrcmp(argrest, "ropcr") == 0)
{
/* drop_cr = TRUE; */
}
- /* Use an intermediate variable so that we don't set debugging while
- decoding the debugging bits. */
+ /* -dp: Set up a debug pretrigger buffer with given size. */
+
+ else if (Ustrcmp(argrest, "p") == 0)
+ if (++i >= argc)
+ badarg = TRUE;
+ else
+ debug_pretrigger_setup(argv[i]);
+
+ /* -dt: Set a debug trigger selector */
+
+ else if (Ustrncmp(argrest, "t=", 2) == 0)
+ dtrigger_selector = (unsigned int) Ustrtol(argrest + 2, NULL, 0);
+
+ /* -d: Set debug level (see also -v below).
+ If -dd is used, debugging subprocesses of the daemon is disabled. */
else
{
+ /* Use an intermediate variable so that we don't set debugging while
+ decoding the debugging bits. */
+
unsigned int selector = D_default;
debug_selector = 0;
debug_file = NULL;
case 'F':
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);
+ originator_name = string_copy_taint(
+ exim_str_fail_toolong(argrest, EXIM_HUMANNAME_MAX, "-F"),
+ GET_TAINTED);
f.sender_name_forced = TRUE;
break;
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 */
+ {
+ uschar * s = store_get(1, GET_UNTAINTED); /* Ensure writeable memory */
+ *s = '\0';
+ sender_address = s;
+ }
else
{
- uschar * temp = argrest + Ustrlen(argrest) - 1;
+ const uschar * temp = argrest + Ustrlen(argrest) - 1;
while (temp >= argrest && isspace(*temp)) temp--;
if (temp >= argrest && *temp == '.') f_end_dot = TRUE;
allow_domain_literals = TRUE;
&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);
+ sender_address = string_copy_taint(sender_address, GET_TAINTED);
#ifdef SUPPORT_I18N
message_smtputf8 = string_is_utf8(sender_address);
allow_utf8_domains = FALSE;
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 = string_copy_taint(argrest, TRUE);
+ cmdline_syslog_name = string_copy_taint(argrest, GET_TAINTED);
break;
case 'M':
if (msg_action_arg >= 0)
exim_fail("exim: incompatible arguments\n");
- 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_transport = string_copy_taint(
+ exim_str_fail_toolong(argv[++i], EXIM_DRIVERNAME_MAX, "-C internal transport"),
+ GET_TAINTED);
+ continue_hostname = string_copy_taint(
+ exim_str_fail_toolong(argv[++i], EXIM_HOSTNAME_MAX, "-C internal hostname"),
+ GET_TAINTED);
+ continue_host_address = string_copy_taint(
+ exim_str_fail_toolong(argv[++i], EXIM_IPADDR_MAX, "-C internal hostaddr"),
+ GET_TAINTED);
continue_sequence = Uatoi(argv[++i]);
msg_action = MSG_DELIVER;
msg_action_arg = ++i;
/* -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);
+ process_purpose = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_DRIVERNAME_MAX, "-MCd"),
+ GET_TAINTED);
else badarg = TRUE;
break;
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);
+ case 'G': if (++i < argc) queue_name = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_DRIVERNAME_MAX, "-MCG"),
+ GET_UNTAINTED);
else badarg = TRUE;
break;
case 'K': smtp_peer_options |= OPTION_CHUNKING; break;
-#ifdef EXPERIMENTAL_ESMTP_LIMITS
+#ifndef DISABLE_ESMTP_LIMITS
/* -MCL: peer used LIMITS RCPTMAX and/or RCPTDOMAINMAX */
case 'L': if (++i < argc) continue_limit_mail = Uatoi(argv[i]);
else badarg = TRUE;
case 'p': proxy_session = TRUE;
if (++i < argc)
{
- proxy_local_address = string_copy_taint(argv[i], TRUE);
+ proxy_local_address = string_copy_taint(argv[i], GET_TAINTED);
if (++i < argc)
{
proxy_local_port = Uatoi(argv[i]);
if (++i < argc)
{
- proxy_external_address = string_copy_taint(argv[i], TRUE);
+ proxy_external_address = string_copy_taint(argv[i], GET_TAINTED);
if (++i < argc)
{
proxy_external_port = Uatoi(argv[i]);
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);
+ continue_proxy_sni = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_HOSTNAME_MAX, "-MCr/-MCs"),
+ GET_TAINTED);
if (argrest[1] == 'r') continue_proxy_dane = TRUE;
}
else badarg = TRUE;
and the TLS cipher. */
case 't': if (++i < argc)
- sending_ip_address = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_IPADDR_MAX, "-MCt IP"), TRUE);
+ sending_ip_address = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_IPADDR_MAX, "-MCt IP"),
+ GET_TAINTED);
else badarg = TRUE;
if (++i < argc)
sending_port = (int)(Uatol(argv[i]));
else badarg = TRUE;
if (++i < argc)
- continue_proxy_cipher = string_copy_taint(exim_str_fail_toolong(argv[i], EXIM_CIPHERNAME_MAX, "-MCt cipher"), TRUE);
+ continue_proxy_cipher = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_CIPHERNAME_MAX, "-MCt cipher"),
+ GET_TAINTED);
else badarg = TRUE;
/*FALLTHROUGH*/
else if (Ustrcmp(argrest, "G") == 0)
{
msg_action = MSG_SETQUEUE;
- queue_name_dest = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_DRIVERNAME_MAX, "-MG"), TRUE);
- }
- else if (Ustrcmp(argrest, "mad") == 0)
- {
- msg_action = MSG_MARK_ALL_DELIVERED;
+ queue_name_dest = string_copy_taint(
+ exim_str_fail_toolong(next_argv(argv, &i, argc, arg),
+ EXIM_DRIVERNAME_MAX, "-MG"),
+ GET_TAINTED);
}
+ else if (Ustrcmp(argrest, "mad") == 0) msg_action = MSG_MARK_ALL_DELIVERED;
else if (Ustrcmp(argrest, "md") == 0)
{
msg_action = MSG_MARK_DELIVERED;
/* -oB: Set a connection message max value for remote deliveries */
case 'B':
{
- uschar * p = argrest;
+ const uschar * p = argrest;
if (!*p)
if (i+1 < argc && isdigit((argv[i+1][0])))
p = argv[++i];
/* -oMa: Set sender host address */
if (Ustrcmp(argrest, "a") == 0)
- sender_host_address = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_IPADDR_MAX, "-oMa"), TRUE);
+ sender_host_address = string_copy_taint(
+ exim_str_fail_toolong(next_argv(argv, &i, argc, arg),
+ EXIM_IPADDR_MAX, "-oMa"), GET_TAINTED);
/* -oMaa: Set authenticator name */
else if (Ustrcmp(argrest, "aa") == 0)
- sender_host_authenticated = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_DRIVERNAME_MAX, "-oMaa"), TRUE);
+ sender_host_authenticated = string_copy_taint(
+ exim_str_fail_toolong(next_argv(argv, &i, argc, arg),
+ EXIM_DRIVERNAME_MAX, "-oMaa"), GET_TAINTED);
/* -oMas: setting authenticated sender */
else if (Ustrcmp(argrest, "as") == 0)
- authenticated_sender = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_EMAILADDR_MAX, "-oMas"), TRUE);
+ authenticated_sender = string_copy_taint(
+ exim_str_fail_toolong(next_argv(argv, &i, argc, arg),
+ EXIM_EMAILADDR_MAX, "-oMas"), GET_TAINTED);
/* -oMai: setting authenticated id */
else if (Ustrcmp(argrest, "ai") == 0)
- authenticated_id = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_EMAILADDR_MAX, "-oMas"), TRUE);
+ authenticated_id = string_copy_taint(
+ exim_str_fail_toolong(next_argv(argv, &i, argc, arg),
+ EXIM_EMAILADDR_MAX, "-oMai"), GET_TAINTED);
/* -oMi: Set incoming interface address */
else if (Ustrcmp(argrest, "i") == 0)
- interface_address = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_IPADDR_MAX, "-oMi"), TRUE);
+ interface_address = string_copy_taint(
+ exim_str_fail_toolong(next_argv(argv, &i, argc, arg),
+ EXIM_IPADDR_MAX, "-oMi"), GET_TAINTED);
/* -oMm: Message reference */
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];
+ message_reference = next_argv(argv, &i, argc, arg);
}
/* -oMr: Received protocol */
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);
+ if (++i >= argc) badarg = TRUE;
+ else
+ received_protocol = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_DRIVERNAME_MAX, "-oMr"),
+ GET_TAINTED);
/* -oMs: Set sender host name */
else if (Ustrcmp(argrest, "s") == 0)
- sender_host_name = string_copy_taint(exim_str_fail_toolong(argv[++i], EXIM_HOSTNAME_MAX, "-oMs"), TRUE);
+ if (++i >= argc) badarg = TRUE;
+ else
+ sender_host_name = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_HOSTNAME_MAX, "-oMs"),
+ GET_TAINTED);
/* -oMt: Set sender ident */
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);
- }
+ if (++i >= argc) badarg = TRUE;
+ else
+ {
+ sender_ident_set = TRUE;
+ sender_ident = string_copy_taint(
+ exim_str_fail_toolong(argv[i], EXIM_IDENTUSER_MAX, "-oMt"),
+ GET_TAINTED);
+ }
/* Else a bad argument */
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];
+ if (!*argrest)
+ if (++i < argc) override_pid_file_path = argv[i];
+ else badarg = TRUE;
else if (Ustrcmp(argrest, "X") == 0) delete_pid_file();
else badarg = TRUE;
break;
/* Limits: Is there a real limit we want here? 1024 is very arbitrary. */
case 'X':
- if (*argrest) badarg = TRUE;
- else override_local_interfaces = string_copy_taint(exim_str_fail_toolong(argv[++i], 1024, "-oX"), TRUE);
+ if (*argrest || ++i >= argc) badarg = TRUE;
+ else override_local_interfaces = string_copy_taint(
+ exim_str_fail_toolong(argv[i], 1024, "-oX"), GET_TAINTED);
break;
/* -oY: Override creation of daemon notifier socket */
case 'Y':
if (*argrest) badarg = TRUE;
- else notifier_socket = NULL;
+ else f.notifier_socket_en = FALSE;
break;
/* Unknown -o argument */
which sets the host protocol and host name */
if (!*argrest)
- if (i+1 < argc) argrest = argv[++i]; else { badarg = TRUE; break; }
+ argrest = next_argv(argv, &i, argc, arg);
if (*argrest)
{
exim_fail("received_protocol is set already\n");
if (!hn)
- received_protocol = string_copy_taint(exim_str_fail_toolong(argrest, EXIM_DRIVERNAME_MAX, "-p<protocol>"), TRUE);
+ received_protocol = string_copy_taint(
+ exim_str_fail_toolong(argrest, EXIM_DRIVERNAME_MAX, "-p<protocol>"),
+ GET_TAINTED);
else
{
(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);
+ received_protocol = string_copyn_taint(argrest, hn - argrest, GET_TAINTED);
+ sender_host_name = string_copy_taint(hn + 1, GET_TAINTED);
}
}
break;
+ /* -q: set up queue runs */
case 'q':
- receiving_message = FALSE;
- if (queue_interval >= 0)
- exim_fail("exim: -q specified more than once\n");
-
- /* -qq...: Do queue runs in a 2-stage manner */
-
- if (*argrest == 'q')
{
- f.queue_2stage = TRUE;
- argrest++;
- }
+ BOOL two_stage, first_del, force, thaw = FALSE, local;
- /* -qi...: Do only first (initial) deliveries */
+ receiving_message = FALSE;
- if (*argrest == 'i')
- {
- f.queue_run_first_delivery = TRUE;
- argrest++;
- }
+ /* -qq...: Do queue runs in a 2-stage manner */
- /* -qf...: Run the queue, forcing deliveries
- -qff..: Ditto, forcing thawing as well */
+ if ((two_stage = *argrest == 'q'))
+ argrest++;
- if (*argrest == 'f')
- {
- f.queue_run_force = TRUE;
- if (*++argrest == 'f')
- {
- f.deliver_force_thaw = TRUE;
- argrest++;
- }
- }
+ /* -qi...: Do only first (initial) deliveries */
- /* -q[f][f]l...: Run the queue only on local deliveries */
+ if ((first_del = *argrest == 'i'))
+ argrest++;
- if (*argrest == 'l')
- {
- f.queue_run_local = TRUE;
- argrest++;
- }
+ /* -qf...: Run the queue, forcing deliveries
+ -qff..: Ditto, forcing thawing as well */
- /* -q[f][f][l][G<name>]... Work on the named queue */
+ if ((force = *argrest == 'f'))
+ if ((thaw = *++argrest == 'f'))
+ argrest++;
- if (*argrest == 'G')
- {
- 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++;
- }
+ /* -q[f][f]l...: Run the queue only on local deliveries */
+
+ if ((local = *argrest == 'l'))
+ argrest++;
- /* -q[f][f][l][G<name>]: Run the queue, optionally forced, optionally local
- only, optionally named, optionally starting from a given message id. */
+ /* -q[f][f][l][G<name>]... Work on the named queue */
- if (!(list_queue || count_queue))
- if ( !*argrest
- && (i + 1 >= argc || argv[i+1][0] == '-' || mac_ismsgid(argv[i+1])))
+ if (*argrest == 'G')
{
- queue_interval = 0;
- if (i+1 < argc && mac_ismsgid(argv[i+1]))
- start_queue_run_id = string_copy_taint(argv[++i], TRUE);
- if (i+1 < argc && mac_ismsgid(argv[i+1]))
- stop_queue_run_id = string_copy_taint(argv[++i], TRUE);
+ 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++;
}
- /* -q[f][f][l][G<name>/]<n>: Run the queue at regular intervals, optionally
- forced, optionally local only, optionally named. */
+ /* -q[f][f][l][G<name>]: Run the queue, optionally forced, optionally local
+ only, optionally named, optionally starting from a given message id. */
- else if ((queue_interval = readconf_readtime(*argrest ? argrest : argv[++i],
- 0, FALSE)) <= 0)
- exim_fail("exim: bad time value %s: abandoned\n", argv[i]);
- break;
+ if (!(list_queue || count_queue))
+ {
+ qrunner * q;
+
+ if ( !*argrest
+ && (i + 1 >= argc || argv[i+1][0] == '-' || mac_ismsgid(argv[i+1])))
+ {
+ q = alloc_onetime_qrunner();
+ if (i+1 < argc && mac_ismsgid(argv[i+1]))
+ start_queue_run_id = string_copy_taint(argv[++i], GET_TAINTED);
+ if (i+1 < argc && mac_ismsgid(argv[i+1]))
+ stop_queue_run_id = string_copy_taint(argv[++i], GET_TAINTED);
+ }
+
+ /* -q[f][f][l][G<name>/]<n>: Run the queue at regular intervals, optionally
+ forced, optionally local only, optionally named. */
+
+ else
+ {
+ int intvl;
+ const uschar * s;
+
+ if (*argrest) s = argrest;
+ else if (++i < argc) { badarg = TRUE; break; }
+ else s = argv[i];
+
+ if ((intvl = readconf_readtime(s, 0, FALSE)) <= 0)
+ exim_fail("exim: bad time value %s: abandoned\n", argv[i]);
+
+ for (qrunner * qq = qrunners; qq; qq = qq->next)
+ if ( queue_name && qq->name && Ustrcmp(queue_name, qq->name) == 0
+ || !queue_name && !qq->name)
+ exim_fail("exim: queue-runner specified more than once\n");
+
+ q = alloc_qrunner();
+ q->interval = intvl;
+ }
+
+ q->name = *queue_name ? queue_name : NULL; /* will be NULL for the default queue */
+ q->queue_run_force = force;
+ q->deliver_force_thaw = thaw;
+ q->queue_run_first_delivery = first_del;
+ q->queue_run_local = local;
+ q->queue_2stage = two_stage;
+ }
+
+ break;
+ }
case 'R': /* Synonymous with -qR... */
+ case 'S': /* Synonymous with -qS... */
{
- const uschar *tainted_selectstr;
+ const uschar * tainted_selectstr;
+ uschar * s;
receiving_message = FALSE;
-Rrf: Regex and force
-Rrff: Regex and force and thaw
+ -S...: Like -R but works on sender.
+
in all cases provided there are no further characters in this
argument. */
+ if (!qrunners) alloc_onetime_qrunner();
+ qrunners->queue_2stage = f.queue_2stage;
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;
+ if (i != 2) qrunners->queue_run_force = TRUE;
+ if (i >= 2)
+ if (switchchar == 'R')
+ f.deliver_selectstring_regex = TRUE;
+ else
+ f.deliver_selectstring_sender_regex = TRUE;
+ if (i == 1 || i == 4) qrunners->deliver_force_thaw = TRUE;
argrest += Ustrlen(rsopts[i]);
}
- /* -R: Set string to match in addresses for forced queue run to
+ /* -R or -S: Set string to match in addresses for forced queue run to
pick out particular messages. */
/* Avoid attacks from people providing very long strings, and do so before
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) */
+ exim_fail("exim: string expected after %s\n", switchchar == 'R' ? "-R" : "-S");
+ s = string_copy_taint(
+ exim_str_fail_toolong(tainted_selectstr, EXIM_EMAILADDR_MAX, "-R"),
+ GET_TAINTED);
- /* -S: Like -R but works on sender. */
-
- case 'S': /* Synonymous with -qS... */
- {
- const uschar *tainted_selectstr;
-
- receiving_message = FALSE;
-
- /* -Sf: As -S (below) but force all deliveries,
- -Sff: Ditto, but also thaw all frozen messages,
- -Sr: String is regex
- -Srf: Regex and force
- -Srff: Regex and force and thaw
-
- 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]);
- }
-
- /* -S: Set string to match in addresses for forced queue run to
- pick out particular messages. */
-
- if (*argrest)
- tainted_selectstr = argrest;
- else if (i+1 < argc)
- tainted_selectstr = argv[++i];
+ if (switchchar == 'R')
+ deliver_selectstring = s;
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);
+ deliver_selectstring_sender = s;
}
break;
+
+ /* -r: an obsolete synonym for -f (see above) */
+
/* -Tqt is an option that is exclusively for use by the testing suite.
It is not recognized in other circumstances. It allows for the setting up
of explicit "queue times" so that various warning/retry things can be
tested. Otherwise variability of clock ticks etc. cause problems. */
case 'T':
- if (f.running_in_test_harness && Ustrcmp(argrest, "qt") == 0)
- fudged_queue_times = string_copy_taint(argv[++i], TRUE);
+ if (f.running_in_test_harness && Ustrcmp(argrest, "qt") == 0 && ++i < argc)
+ fudged_queue_times = string_copy_taint(argv[i], GET_TAINTED);
else badarg = TRUE;
break;
case 'z':
if (!*argrest)
if (++i < argc)
- log_oneline = string_copy_taint(exim_str_fail_toolong(argv[i], 2048, "-z logtext"), TRUE);
+ log_oneline = string_copy_taint(
+ exim_str_fail_toolong(argv[i], 2048, "-z logtext"),
+ GET_TAINTED);
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) && !qrunners)
+ alloc_onetime_qrunner();
END_ARG:
/* Arguments have been processed. Check for incompatibilities. */
if ( ( (smtp_input || extract_recipients || recipients_arg < argc)
- && ( f.daemon_listen || queue_interval >= 0 || bi_option
+ && ( f.daemon_listen || qrunners || 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
+ && ( f.daemon_listen || is_multiple_qrun() || list_options
|| checking && msg_action != MSG_LOAD
|| bi_option || test_retry_arg >= 0 || test_rewrite_arg >= 0
) )
- || ( (f.daemon_listen || queue_interval > 0)
+ || ( (f.daemon_listen || is_multiple_qrun())
&& ( sender_address || list_options || list_queue || checking
|| bi_option
) )
- || f.daemon_listen && queue_interval == 0
- || f.inetd_wait_mode && queue_interval >= 0
+ || f.daemon_listen && is_onetime_qrun()
+ || f.inetd_wait_mode && qrunners
|| ( list_options
&& ( checking || 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
+ || deliver_selectstring && !qrunners
|| msg_action == MSG_LOAD && (!expansion_test || expansion_test_message)
)
exim_fail("exim: incompatible command-line options or arguments\n");
version_string, (long int)real_uid, (long int)real_gid, (int)getpid(),
debug_selector);
if (!version_printed)
- show_whats_supported(stderr);
+ show_whats_supported(FALSE);
}
}
{
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
defined) */
{
+ int old_pool = store_pool;
#ifdef MEASURE_TIMING
- struct timeval t0, diff;
+ struct timeval t0;
(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)
if (bi_command && *bi_command)
{
int i = 0;
- uschar *argv[3];
- argv[i++] = bi_command;
+ const uschar * argv[3];
+ argv[i++] = bi_command; /* nonexpanded option so assume untainted */
if (alias_arg) argv[i++] = alias_arg;
argv[i++] = NULL;
if ( deliver_give_up || f.daemon_listen || malware_test_file
|| count_queue && queue_list_requires_admin
|| list_queue && queue_list_requires_admin
- || queue_interval >= 0 && prod_requires_admin
+ || qrunners && prod_requires_admin
|| 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; not admin\n",
+ debugset ? " debugging" : "");
}
/* If the real user is not root or the exim uid, the argument for passing
if ( real_uid != root_uid && real_uid != exim_uid
&& ( continue_hostname
|| ( f.dont_deliver
- && (queue_interval >= 0 || f.daemon_listen || msg_action_arg > 0)
+ && (qrunners || f.daemon_listen || msg_action_arg > 0)
) )
&& !f.running_in_test_harness
)
- exim_fail("exim: Permission denied\n");
+ exim_fail("exim: Permission denied; not exim user or root\n");
/* If the caller is not trusted, certain arguments are ignored when running for
real, but are permitted when checking things (-be, -bv, -bt, -bh, -bf, -bF).
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) */
+ && (!qrunners || is_onetime_qrun()) /* (either kind of daemon) */
&& ( /* AND EITHER */
deliver_drop_privilege /* requested unprivileged */
|| ( /* OR */
- queue_interval < 0 /* not running the queue */
+ !qrunners /* not running the queue */
&& ( msg_action_arg < 0 /* and */
|| msg_action != MSG_DELIVER /* not delivering */
) /* and */
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)
{
}
/* We used to set up here to skip reading the ACL section, on
- (msg_action_arg > 0 || (queue_interval == 0 && !f.daemon_listen)
+ (msg_action_arg > 0 || (is_onetime_qrun() && !f.daemon_listen)
Now, since the intro of the ${acl } expansion, ACL definitions may be
needed in transports so we lost the optimisation. */
{
+ int old_pool = store_pool;
#ifdef MEASURE_TIMING
- struct timeval t0, diff;
+ struct timeval t0;
(void)gettimeofday(&t0, NULL);
#endif
+ store_pool = POOL_CONFIG;
readconf_rest();
+ store_pool = old_pool;
+
+ /* -be can add macro definitions, needing to link to the macro structure
+ chain. Otherwise, make the memory used for config data readonly. */
+
+ if (!expansion_test)
+ store_writeprotect(POOL_CONFIG);
#ifdef MEASURE_TIMING
report_time_since(&t0, US"readconf_rest (delta)");
exim_fail("exim: missing recipient for quota check\n");
else
{
- verify_quota(argv[recipients_arg]);
+ verify_quota(US argv[recipients_arg]); /*XXX we lose track of const here */
exim_exit(EXIT_SUCCESS);
}
/* If only a single queue run is requested, without SMTP listening, we can just
turn into a queue runner, with an optional starting message id. */
-if (queue_interval == 0 && !f.daemon_listen)
+if (is_onetime_qrun() && !f.daemon_listen)
{
- DEBUG(D_queue_run) debug_printf("Single queue run%s%s%s%s\n",
- 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);
+ single_queue_run(qrunners, start_queue_run_id, stop_queue_run_id);
exim_exit(EXIT_SUCCESS);
}
/* If a pattern for matching the gecos field was supplied, apply
it and then expand the name string. */
+ GET_OPTION("gecos_pattern");
+ GET_OPTION("gecos_name");
if (gecos_pattern && gecos_name)
{
- const pcre *re;
- re = regex_must_compile(gecos_pattern, FALSE, TRUE); /* Use malloc */
+ const pcre2_code *re;
+ re = regex_must_compile(gecos_pattern, MCS_NOFLAGS, TRUE); /* Use malloc */
if (regex_match_and_setup(re, name, 0, -1))
{
if (!originator_login || f.running_in_test_harness)
{
+ GET_OPTION("unknown_login");
if (unknown_login)
{
originator_login = expand_string(unknown_login);
for incoming messages via the daemon. The daemon cannot be run in mua_wrapper
mode. */
-if (f.daemon_listen || f.inetd_wait_mode || queue_interval > 0)
+if (f.daemon_listen || f.inetd_wait_mode || is_multiple_qrun())
{
if (mua_wrapper)
{
routines in it, so call even if tls_require_ciphers is unset */
{
# ifdef MEASURE_TIMING
- struct timeval t0, diff;
+ struct timeval t0;
(void)gettimeofday(&t0, NULL);
# endif
if (!tls_dropprivs_validate_require_cipher(FALSE))
while (recipients_arg < argc)
{
/* Supplied addresses are tainted since they come from a user */
- uschar * s = string_copy_taint(exim_str_fail_toolong(argv[recipients_arg++], EXIM_DISPLAYMAIL_MAX, "address verification"), TRUE);
+ uschar * s = string_copy_taint(
+ exim_str_fail_toolong(argv[recipients_arg++], EXIM_DISPLAYMAIL_MAX, "address verification"),
+ GET_TAINTED);
while (*s)
{
BOOL finished = FALSE;
{
uschar * s = get_stdinput(NULL, NULL);
if (!s) break;
- test_address(string_copy_taint(exim_str_fail_toolong(s, EXIM_DISPLAYMAIL_MAX, "address verification (stdin)"), TRUE), flags, &exit_value);
+ test_address(string_copy_taint(
+ exim_str_fail_toolong(s, EXIM_DISPLAYMAIL_MAX, "address verification (stdin)"),
+ GET_TAINTED),
+ flags, &exit_value);
}
route_tidyup();
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);
+ message_id = string_copy_taint(message_id, GET_UNTAINTED);
spoolname = string_sprintf("%s-H", message_id);
if ((deliver_datafile = spool_open_datafile(message_id)) < 0)
else if (expansion_test_message)
{
+ uschar * rme = expand_string(recipients_max);
int save_stdin = dup(0);
int fd = Uopen(expansion_test_message, O_RDONLY, 0);
if (fd < 0)
(void) dup2(fd, 0);
filter_test = FTEST_USER; /* Fudge to make it look like filter test */
message_ended = END_NOTENDED;
+ recipients_max_expanded = atoi(CCS rme);
read_message_body(receive_msg(extract_recipients));
message_linecount += body_linecount;
(void)dup2(save_stdin, 0);
set for host checking, and for receiving messages. */
smtp_active_hostname = primary_hostname;
-if (raw_active_hostname != NULL)
+GET_OPTION("smtp_active_hostname");
+if (raw_active_hostname)
{
- uschar *nah = expand_string(raw_active_hostname);
- if (nah == NULL)
+ uschar * nah = expand_string(raw_active_hostname);
+ if (!nah)
{
if (!f.expand_string_forcedfail)
log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand \"%s\" "
"(smtp_active_hostname): %s", raw_active_hostname,
expand_string_message);
}
- else if (nah[0] != 0) smtp_active_hostname = nah;
+ else if (nah[0]) smtp_active_hostname = nah;
}
/* Handle host checking: this facility mocks up an incoming SMTP call from a
}
/* In case the given address is a non-canonical IPv6 address, canonicalize
- it. The code works for both IPv4 and IPv6, as it happens. */
+ it. Use the compressed form for IPv6. */
size = host_aton(sender_host_address, x);
- sender_host_address = store_get(48, FALSE); /* large enough for full IPv6 */
- (void)host_nmtoa(size, x, -1, sender_host_address, ':');
+ sender_host_address = store_get(48, GET_UNTAINTED); /* large enough for full IPv6 */
+ if (size == 1)
+ (void) host_nmtoa(size, x, -1, sender_host_address, ':');
+ else
+ (void) ipv6_nmtoa(x, sender_host_address);
/* Now set up for testing */
"**** This is not for real!\n\n",
sender_host_address);
+ connection_id = getpid();
memset(sender_host_cache, 0, sizeof(sender_host_cache));
if (verify_check_host(&hosts_connection_nolog) == OK)
+ {
BIT_CLEAR(log_selector, log_selector_size, Li_smtp_connection);
+ BIT_CLEAR(log_selector, log_selector_size, Li_smtp_no_mail);
+ }
log_write(L_smtp_connection, LOG_MAIN, "%s", smtp_get_connection_info());
/* NOTE: We do *not* call smtp_log_no_mail() if smtp_start_session() fails,
{
if (!f.is_inetd) set_process_info("accepting a local %sSMTP message from <%s>",
smtp_batched_input? "batched " : "",
- (sender_address!= NULL)? sender_address : originator_login);
+ sender_address ? sender_address : originator_login);
}
else
{
(usually "connection refused: <reason>") and writing another one is
unnecessary clutter. */
+connection_id = getpid();
if (smtp_input)
{
smtp_in = stdin;
smtp_out = stdout;
memset(sender_host_cache, 0, sizeof(sender_host_cache));
if (verify_check_host(&hosts_connection_nolog) == OK)
+ {
BIT_CLEAR(log_selector, log_selector_size, Li_smtp_connection);
+ BIT_CLEAR(log_selector, log_selector_size, Li_smtp_no_mail);
+ }
log_write(L_smtp_connection, LOG_MAIN, "%s", smtp_get_connection_info());
if (!smtp_start_session())
{
}
}
-/* Otherwise, set up the input size limit here. */
+/* Otherwise, set up the input size limit here and set no stdin stdio buffer
+(we handle buferring so as to have visibility of fill level). */
else
{
+ GET_OPTION("message_size_limit");
thismessage_size_limit = expand_string_integer(message_size_limit, TRUE);
if (expand_string_message)
if (thismessage_size_limit == -1)
else
log_write(0, LOG_MAIN|LOG_PANIC_DIE, "invalid value for "
"message_size_limit: %s", expand_string_message);
+
+ setvbuf(stdin, NULL, _IONBF, 0);
}
/* Loop for several messages when reading SMTP input. If we fork any child
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; )
{
rmark reset_point = store_mark();
message_id[0] = 0;
int rc;
if ((rc = smtp_setup_msg()) > 0)
{
- if (real_sender_address != NULL &&
- !receive_check_set_sender(sender_address))
+ if ( real_sender_address
+ && !receive_check_set_sender(sender_address))
{
sender_address = raw_sender = real_sender_address;
sender_address_unrewritten = NULL;
the very end. The result of the ACL is ignored (as for other non-SMTP
messages). It is run for its potential side effects. */
- if (smtp_batched_input && acl_not_smtp_start != NULL)
- {
- uschar *user_msg, *log_msg;
- f.enable_dollar_recipients = TRUE;
- (void)acl_check(ACL_WHERE_NOTSMTP_START, NULL, acl_not_smtp_start,
- &user_msg, &log_msg);
- f.enable_dollar_recipients = FALSE;
- }
+ if (smtp_batched_input)
+ {
+ GET_OPTION("acl_not_smtp_start");
+ if (acl_not_smtp_start)
+ {
+ uschar * user_msg, * log_msg;
+ f.enable_dollar_recipients = TRUE;
+ (void)acl_check(ACL_WHERE_NOTSMTP_START, NULL, acl_not_smtp_start,
+ &user_msg, &log_msg);
+ f.enable_dollar_recipients = FALSE;
+ }
+ }
/* 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);
}
else
{
- int rcount = 0;
- int count = argc - recipients_arg;
- uschar **list = argv + recipients_arg;
+ uschar * rme = expand_string(recipients_max);
+ int rcount = 0, count = argc - recipients_arg;
+ const uschar ** list = argv + recipients_arg;
+
+ recipients_max_expanded = atoi(CCS rme);
/* These options cannot be changed dynamically for non-SMTP messages */
int start, end, domain;
uschar * errmess;
/* 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);
+ 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"),
+ GET_TAINTED);
/* Loop for each comma-separated address */
- while (*s != 0)
+ while (*s)
{
BOOL finished = FALSE;
- uschar *recipient;
- uschar *ss = parse_find_address_end(s, FALSE);
+ uschar * recipient;
+ uschar * ss = parse_find_address_end(s, FALSE);
if (*ss == ',') *ss = 0; else finished = TRUE;
/* Check max recipients - if -t was used, these aren't recipients */
- if (recipients_max > 0 && ++rcount > recipients_max &&
- !extract_recipients)
+ if ( recipients_max_expanded > 0 && ++rcount > recipients_max_expanded
+ && !extract_recipients)
+ {
+ DEBUG(D_all) debug_printf("excess reipients (max %d)\n",
+ recipients_max_expanded);
+
if (error_handling == ERRORS_STDERR)
{
fprintf(stderr, "exim: too many recipients\n");
return
moan_to_sender(ERRMESS_TOOMANYRECIP, NULL, NULL, stdin, TRUE)?
errors_sender_rc : EXIT_FAILURE;
+ }
#ifdef SUPPORT_I18N
{
}
if (!recipient)
+ {
+ DEBUG(D_all) debug_printf("bad recipient address \"%s\": %s\n",
+ string_printing(list[i]), errmess);
+
if (error_handling == ERRORS_STDERR)
{
fprintf(stderr, "exim: bad recipient address \"%s\": %s\n",
moan_to_sender(ERRMESS_BADARGADDRESS, &eblock, NULL, stdin, TRUE)?
errors_sender_rc : EXIT_FAILURE;
}
+ }
- receive_add_recipient(string_copy_taint(recipient, TRUE), -1);
+ receive_add_recipient(string_copy_taint(recipient, GET_TAINTED), -1);
s = ss;
if (!finished)
- while (*(++s) != 0 && (*s == ',' || isspace(*s)));
+ while (*++s && (*s == ',' || isspace(*s)));
}
}
ignored; rejecting here would just add complication, and it can just as
well be done later. Allow $recipients to be visible in the ACL. */
+ GET_OPTION("acl_not_smtp_start");
if (acl_not_smtp_start)
{
- uschar *user_msg, *log_msg;
+ uschar * user_msg, * log_msg;
f.enable_dollar_recipients = TRUE;
(void)acl_check(ACL_WHERE_NOTSMTP_START, NULL, acl_not_smtp_start,
&user_msg, &log_msg);
the file copy. */
if (!receive_timeout)
- {
- struct timeval t = { .tv_sec = 30*60, .tv_usec = 0 }; /* 30 minutes */
- fd_set r;
-
- FD_ZERO(&r); FD_SET(0, &r);
- if (select(1, &r, NULL, NULL, &t) == 0) mainlog_close();
- }
+ if (poll_one_fd(0, POLLIN, 30*60*1000) == 0) /* 30 minutes */
+ mainlog_close();
/* Read the data for the message. If filter_test is not FTEST_NONE, this
will just read the headers for the message, and not write anything onto the
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]) exim_exit(EXIT_FAILURE);
} /* Non-SMTP message reception */
/* If this is a filter testing run, there are headers in store, but
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;
dnslist_domain = dnslist_matched = NULL;
#ifdef WITH_CONTENT_SCAN
malware_name = NULL;
+ regex_vars_clear();
#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;
+ lookup_value = NULL; /* Can be set by ACL */
store_reset(reset_point);
}
/* End of exim.c */
+/* vi: aw ai sw=2
+*/
git://git.exim.org / exim.git / blobdiff