* Exim - an Internet mail transport agent *
*************************************************/
+/* Copyright (c) The Exim Maintainers 2020 - 2024 */
/* Copyright (c) University of Cambridge 1995 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* These two macros make it possible to obtain the result of macro-expanding
/* When running in the test harness, the load average is fudged. */
#define OS_GETLOADAVG() \
- (running_in_test_harness? (test_harness_load_avg += 10) : os_getloadavg())
+ (f.running_in_test_harness? (test_harness_load_avg += 10) : os_getloadavg())
/* The address_item structure has a struct full of 1-bit flags. These macros
/* For almost all calls to convert things to printing characters, we want to
-allow tabs. A macro just makes life a bit easier. */
+allow tabs & spaces. A macro just makes life a bit easier. */
-#define string_printing(s) string_printing2((s), TRUE)
+#define string_printing(s) string_printing2((s), 0)
+#define SP_TAB BIT(0)
+#define SP_SPACE BIT(1)
/* We need a special return code for "no recipients and failed to send an error
((uschar)(c) > 127 && print_topbitchars))
-/* Convenience for testing strings */
-
-#define streqic(Foo, Bar) (strcmpic(Foo, Bar) == 0)
-
-
/* When built with TLS support, the act of flushing SMTP output becomes
a no-op once an SSL session is in progress. */
-#ifdef SUPPORT_TLS
-#define mac_smtp_fflush() if (tls_in.active < 0) fflush(smtp_out);
+#ifndef DISABLE_TLS
+#define mac_smtp_fflush() if (tls_in.active.sock < 0) fflush(smtp_out);
#else
#define mac_smtp_fflush() fflush(smtp_out);
#endif
/* A macro to simplify testing bits in lookup types */
-#define mac_islookup(a,b) ((lookup_list[a]->type & (b)) != 0)
+#define mac_islookup(li,b) ((li)->type & (b))
/* Debugging control */
-#define DEBUG(x) if (debug_selector & (x))
-#define HDEBUG(x) if (host_checking || (debug_selector & (x)))
-
-#define PTR_CHK(ptr) \
-do { \
-if ((void *)ptr > (void *)store_get(0)) \
- debug_printf("BUG: ptr '%s' beyond arena at %s:%d\n", \
- mac_expanded_string(ptr), __FUNCTION__, __LINE__); \
-} while(0)
+#define LOG_NAME_SIZE 256
+#define IS_DEBUG(x) (debug_selector & (x))
+#define DEBUG(x) if (IS_DEBUG(x))
+#define HDEBUG(x) if (host_checking || IS_DEBUG(x))
/* The default From: text for DSNs */
verifying. This has to be explicit because it is referenced in more than one
source module. */
-#define ADDRESS_EXPANSIONS_COUNT 18
+#define ADDRESS_EXPANSIONS_COUNT 19
/* The maximum permitted number of command-line (-D) macro definitions. We
need a limit only to make it easier to generate argument vectors for re-exec
/* The size of the buffer holding the processing information string. */
-#define PROCESS_INFO_SIZE 256
+#define PROCESS_INFO_SIZE 384
/* The size of buffer to get for constructing log entries. Make it big
enough to hold all the headers from a normal kind of message. */
/* The size of the circular buffer that remembers recent SMTP commands */
#define SMTP_HBUFF_SIZE 20
+#define SMTP_HBUFF_PREV(n) ((n) ? (n)-1 : SMTP_HBUFF_SIZE-1)
/* The initial size of a big buffer for use in various places. It gets put
into big_buffer_size and in some circumstances increased. It should be at least
-as long as the maximum path length. */
+as long as the maximum path length PLUS room for string additions.
+Let's go with "at least twice as large as maximum path length".
+*/
-#if defined PATH_MAX && PATH_MAX > 16384
-# define BIG_BUFFER_SIZE PATH_MAX
-#elif defined MAXPATHLEN && MAXPATHLEN > 16384
-# define BIG_BUFFER_SIZE MAXPATHLEN
+#ifdef AUTH_HEIMDAL_GSSAPI
+ /* RFC 4121 section 5.2, SHOULD support 64K input buffers */
+# define __BIG_BUFFER_SIZE 65536
#else
-# define BIG_BUFFER_SIZE 16384
+# define __BIG_BUFFER_SIZE 16384
+#endif
+
+#ifndef PATH_MAX
+/* exim.h will have ensured this exists before including us. */
+# error headers confusion, PATH_MAX missing in macros.h
+#endif
+#if (PATH_MAX*2) > __BIG_BUFFER_SIZE
+# define BIG_BUFFER_SIZE (PATH_MAX*2)
+#else
+# define BIG_BUFFER_SIZE __BIG_BUFFER_SIZE
#endif
/* header size of pipe content
#define LOCAL_SCAN_MAX_RETURN (BIG_BUFFER_SIZE - 24)
-/* A limit to the length of an address. RFC 2821 limits the local part to 64
-and the domain to 255, so this should be adequate, taking into account quotings
-etc. */
-
-#define ADDRESS_MAXLENGTH 512
-
/* The length of the base names of spool files, which consist of an internal
message id with a trailing "-H" or "-D" added. */
-#define SPOOL_NAME_LENGTH (MESSAGE_ID_LENGTH+2)
+#define SPOOL_NAME_LENGTH_OLD (MESSAGE_ID_LENGTH_OLD + 2)
+#define SPOOL_NAME_LENGTH (MESSAGE_ID_LENGTH + 2)
/* The maximum number of message ids to store in a waiting database
-record. */
+record, and the max number of continuation records allowed. */
#define WAIT_NAME_MAX 50
-
-/* Wait this long before determining that a Proxy Protocol configured
-host isn't speaking the protocol, and so is disallowed. Can be moved to
-runtime configuration if per site settings become needed. */
-#ifdef SUPPORT_PROXY
-#define PROXY_NEGOTIATION_TIMEOUT_SEC 3
-#define PROXY_NEGOTIATION_TIMEOUT_USEC 0
-#endif
+#define WAIT_CONT_MAX 1000
/* Fixed option values for all PCRE functions */
/* Macros for trivial functions */
-#define mac_ismsgid(s) \
- (pcre_exec(regex_ismsgid,NULL,CS s,Ustrlen(s),0,PCRE_EOPT,NULL,0) >= 0)
+#define xstr(x) #x
+#define str(x) xstr(x) /* stringize, expanding macros in arg first */
+#define mac_ismsgid(s) (regex_match(regex_ismsgid, (s), -1, NULL))
/* Options for dns_next_rr */
ERRMESS_TOOMANYRECIP, /* Too many recipients */
ERRMESS_LOCAL_SCAN, /* Rejected by local scan */
ERRMESS_LOCAL_ACL /* Rejected by non-SMTP ACL */
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
,ERRMESS_DMARC_FORENSIC /* DMARC Forensic Report */
#endif
};
OK, FAIL, DEFER, ERROR, and FAIL_FORCED are also declared in local_scan.h for
use in the local_scan() function and in ${dlfunc loaded functions. Do not
-change them unilaterally. */
+change them unilaterally.
+
+Use rc_names[] for debug strings. */
#define OK 0 /* Successful match */
#define DEFER 1 /* Defer - some problem */
#define CANCELLED 13 /* Authentication cancelled */
#define FAIL_SEND 14 /* send() failed in authenticator */
#define FAIL_DROP 15 /* Fail and drop connection (used in ACL) */
+#define DANE 16 /* Deferred for domain mismatch (used in transport) */
/* Returns from the deliver_message() function */
#define DELIVER_MUA_FAILED 2 /* Failure when mua_wrapper is set */
#define DELIVER_NOT_ATTEMPTED 3 /* Not tried (no msg or is locked */
-/* Returns from DNS lookup functions. */
+/* Returns from DNS lookup functions. Use dns_rc_names[] for debug strings */
enum { DNS_SUCCEED, DNS_NOMATCH, DNS_NODATA, DNS_AGAIN, DNS_FAIL };
/* This macro is for single-word bit vectors: the debug selector,
and the first word of the log selector. */
-#define BIT(n) (1 << (n))
+#define BIT(n) (1UL << (n))
/* And these are for multi-word vectors. */
-#define BITWORD(n) ( (n) / BITWORDSIZE)
-#define BITMASK(n) (1 << (n) % BITWORDSIZE)
+#define BITWORD(n) ( (n) / BITWORDSIZE)
+#define BITMASK(n) (1U << (n) % BITWORDSIZE)
#define BIT_CLEAR(s,z,n) ((s)[BITWORD(n)] &= ~BITMASK(n))
#define BIT_SET(s,z,n) ((s)[BITWORD(n)] |= BITMASK(n))
/* Options bits for debugging. DEBUG_BIT() declares both a bit index and the
corresponding mask. Di_all is a special value recognized by decode_bits().
+These must match the debug_options table in globals.c .
Exim's code assumes in a number of places that the debug_selector is one
word, and this is exposed in the local_scan ABI. The D_v and D_local_scan bit
masks are part of the local_scan API so are #defined in local_scan.h */
-#define DEBUG_BIT(name) Di_##name = IOTA(Di_iota), D_##name = BIT(Di_##name)
+#define DEBUG_BIT(name) Di_##name = IOTA(Di_iota), D_##name = (int)BIT(Di_##name)
enum {
Di_all = -1,
Di_local_scan = 1,
Di_iota = IOTA_INIT(2),
- DEBUG_BIT(acl),
+ DEBUG_BIT(acl), /* 2 */
DEBUG_BIT(auth),
DEBUG_BIT(deliver),
DEBUG_BIT(dns),
DEBUG_BIT(dnsbl),
- DEBUG_BIT(exec),
+ DEBUG_BIT(exec), /* 7 */
DEBUG_BIT(expand),
DEBUG_BIT(filter),
DEBUG_BIT(hints_lookup),
DEBUG_BIT(ident),
DEBUG_BIT(interface),
DEBUG_BIT(lists),
- DEBUG_BIT(load),
+ DEBUG_BIT(load), /* 15 */
DEBUG_BIT(lookup),
DEBUG_BIT(memory),
+ DEBUG_BIT(noutf8),
DEBUG_BIT(pid),
DEBUG_BIT(process_info),
DEBUG_BIT(queue_run),
DEBUG_BIT(receive),
- DEBUG_BIT(resolver),
+ DEBUG_BIT(resolver), /* 23 */
DEBUG_BIT(retry),
DEBUG_BIT(rewrite),
DEBUG_BIT(route),
DEBUG_BIT(tls),
DEBUG_BIT(transport),
DEBUG_BIT(uid),
- DEBUG_BIT(verify),
+ DEBUG_BIT(verify), /* 31 */
};
/* Multi-bit debug masks */
#define D_any (D_all & \
~(D_v | \
+ D_noutf8 | \
D_pid | \
D_timestamp) )
D_load | \
D_local_scan | \
D_memory | \
+ D_noutf8 | \
D_pid | \
D_timestamp | \
D_resolver))
+/* Bits for debug triggers */
+
+enum {
+ DTi_panictrigger,
+ DTi_pretrigger,
+};
+
/* Options bits for logging. Those that have values < BITWORDSIZE can be used
in calls to log_write(). The others are put into later words in log_selector
and are only ever tested independently, so they do not need bit mask
-declarations. The Li_all value is recognized specially by decode_bits(). */
+declarations. The Li_all value is recognized specially by decode_bits().
+Add also to log_options[] when creating new ones. */
#define LOG_BIT(name) Li_##name = IOTA(Li_iota), L_##name = BIT(Li_##name)
-enum {
+enum logbit {
Li_all = -1,
Li_iota = IOTA_INIT(0),
Li_8bitmime = BITWORDSIZE,
Li_acl_warn_skipped,
Li_arguments,
+ Li_connection_id,
Li_deliver_time,
Li_delivery_size,
Li_dkim,
Li_incoming_interface,
Li_incoming_port,
Li_millisec,
+ Li_msg_id,
+ Li_msg_id_created,
Li_outgoing_interface,
Li_outgoing_port,
Li_pid,
+ Li_pipelining,
+ Li_protocol_detail,
Li_proxy,
Li_queue_time,
+ Li_queue_time_exclusive,
Li_queue_time_overall,
Li_receive_time,
Li_received_sender,
Li_tls_certificate_verified,
Li_tls_cipher,
Li_tls_peerdn,
+ Li_tls_resumption,
Li_tls_sni,
Li_unknown_in_list,
#define ERRNO_DATA4XX (-46) /* DATA gave 4xx error */
#define ERRNO_PROXYFAIL (-47) /* Negotiation failed for proxy configured host */
#define ERRNO_AUTHPROB (-48) /* Authenticator "other" failure */
-
-#ifdef SUPPORT_I18N
-# define ERRNO_UTF8_FWD (-49) /* target not supporting SMTPUTF8 */
-#endif
+#define ERRNO_UTF8_FWD (-49) /* target not supporting SMTPUTF8 */
+#define ERRNO_HOST_IS_LOCAL (-50) /* Transport refuses to talk to localhost */
+#define ERRNO_TAINT (-51) /* Transport refuses to talk use tainted filename */
/* These must be last, so all retry deferments can easily be identified */
-#define ERRNO_RETRY_BASE (-51) /* Base to test against */
-#define ERRNO_RRETRY (-51) /* Not time for routing */
-#define ERRNO_LRETRY (-52) /* Not time for local delivery */
-#define ERRNO_HRETRY (-53) /* Not time for any remote host */
-#define ERRNO_LOCAL_ONLY (-54) /* Local-only delivery */
-#define ERRNO_QUEUE_DOMAIN (-55) /* Domain in queue_domains */
-#define ERRNO_TRETRY (-56) /* Transport concurrency limit */
+#define ERRNO_RETRY_BASE (-52) /* Base to test against */
+#define ERRNO_RRETRY (-52) /* Not time for routing */
+
+#define ERRNO_WARN_BASE (-53) /* Base to test against */
+#define ERRNO_LRETRY (-53) /* Not time for local delivery */
+#define ERRNO_HRETRY (-54) /* Not time for any remote host */
+#define ERRNO_LOCAL_ONLY (-55) /* Local-only delivery */
+#define ERRNO_QUEUE_DOMAIN (-56) /* Domain in queue_domains */
+#define ERRNO_TRETRY (-57) /* Transport concurrency limit */
+#define ERRNO_EVENT (-58) /* Event processing request alternate response */
#define vopt_callout_recippmaster 0x0100 /* use postmaster to verify recip */
#define vopt_callout_hold 0x0200 /* lazy close connection */
#define vopt_success_on_redirect 0x0400
+#define vopt_quota 0x0800 /* quota check, to local/appendfile */
/* Values for fields in callout cache records */
#define DEBUG_FROM_CONFIG 0x0001
/* SMTP command identifiers for the smtp_connection_had field that records the
-most recent SMTP commands. Must be kept in step with the list of names in
-smtp_in.c that is used for creating the smtp_no_mail logging action. SCH_NONE
-is "empty". */
+most recent SMTP commands. SCH_NONE is "empty". */
enum { SCH_NONE, SCH_AUTH, SCH_DATA, SCH_BDAT,
SCH_EHLO, SCH_ETRN, SCH_EXPN, SCH_HELO,
SCH_HELP, SCH_MAIL, SCH_NOOP, SCH_QUIT, SCH_RCPT, SCH_RSET, SCH_STARTTLS,
- SCH_VRFY };
+ SCH_VRFY,
+#ifndef DISABLE_WELLKNOWN
+ SCH_WELLKNOWN,
+#endif
+#ifdef EXPERIMENTAL_XCLIENT
+ SCH_XCLIENT,
+#endif
+ };
/* Returns from host_find_by{name,dns}() */
enum { MSG_DELIVER, MSG_FREEZE, MSG_REMOVE, MSG_THAW, MSG_ADD_RECIPIENT,
MSG_MARK_ALL_DELIVERED, MSG_MARK_DELIVERED, MSG_EDIT_SENDER,
- MSG_SHOW_COPY, MSG_LOAD,
+ MSG_SHOW_COPY, MSG_LOAD, MSG_SETQUEUE,
/* These ones must be last: a test for >= MSG_SHOW_BODY is used
to test for actions that list individual spool files. */
MSG_SHOW_BODY, MSG_SHOW_HEADER, MSG_SHOW_LOG };
/* Options for transport_write_message */
-#define topt_add_return_path 0x001
-#define topt_add_delivery_date 0x002
-#define topt_add_envelope_to 0x004
-#define topt_use_crlf 0x008 /* Terminate lines with CRLF */
-#define topt_end_dot 0x010 /* Send terminating dot line */
-#define topt_no_headers 0x020 /* Omit headers */
-#define topt_no_body 0x040 /* Omit body */
-#define topt_escape_headers 0x080 /* Apply escape check to headers */
-#define topt_use_bdat 0x100 /* prepend chunks with RFC3030 BDAT header */
-#define topt_output_string 0x200 /* create string rather than write to fd */
-#define topt_continuation 0x400 /* do not reset buffer */
+#define topt_add_return_path BIT(0)
+#define topt_add_delivery_date BIT(1)
+#define topt_add_envelope_to BIT(2)
+#define topt_escape_headers BIT(3) /* Apply escape check to headers */
+#define topt_truncate_headers BIT(4) /* Truncate header lines at 998 chars */
+#define topt_use_crlf BIT(5) /* Terminate lines with CRLF */
+#define topt_no_headers BIT(6) /* Omit headers */
+#define topt_no_body BIT(7) /* Omit body */
+#define topt_end_dot BIT(8) /* Send terminating dot line */
+#define topt_no_flush BIT(9) /* more data expected after message (eg QUIT) */
+#define topt_use_bdat BIT(10) /* prepend chunks with RFC3030 BDAT header */
+#define topt_output_string BIT(11) /* create string rather than write to fd */
+#define topt_continuation BIT(12) /* do not reset buffer */
+#define topt_not_socket BIT(13) /* cannot do socket-only syscalls */
/* Options for smtp_write_command */
-enum {
+enum {
SCMD_FLUSH = 0, /* write to kernel */
SCMD_MORE, /* write to kernel, but likely more soon */
SCMD_BUFFER /* stash in application cmd output buffer */
ACL_WHERE_NOTQUIT,
ACL_WHERE_QUIT,
ACL_WHERE_STARTTLS,
+#ifndef DISABLE_WELLKNOWN
+ ACL_WHERE_WELLKNOWN,
+#endif
ACL_WHERE_VRFY,
ACL_WHERE_DELIVERY,
#define ACL_BIT_MIME BIT(ACL_WHERE_MIME)
#define ACL_BIT_DKIM BIT(ACL_WHERE_DKIM)
#define ACL_BIT_DATA BIT(ACL_WHERE_DATA)
-#ifndef DISABLE_PRDR
+#ifdef DISABLE_PRDR
+# define ACL_BIT_PRDR 0
+#else
# define ACL_BIT_PRDR BIT(ACL_WHERE_PRDR)
#endif
#define ACL_BIT_NOTSMTP BIT(ACL_WHERE_NOTSMTP)
#define ACL_BIT_QUIT BIT(ACL_WHERE_QUIT)
#define ACL_BIT_STARTTLS BIT(ACL_WHERE_STARTTLS)
#define ACL_BIT_VRFY BIT(ACL_WHERE_VRFY)
+#ifndef DISABLE_WELLKNOWN
+# define ACL_BIT_WELLKNOWN BIT(ACL_WHERE_WELLKNOWN)
+#endif
#define ACL_BIT_DELIVERY BIT(ACL_WHERE_DELIVERY)
#define ACL_BIT_UNKNOWN BIT(ACL_WHERE_UNKNOWN)
+#define ACL_BITS_HAVEDATA (ACL_BIT_MIME | ACL_BIT_DKIM | ACL_BIT_DATA \
+ | ACL_BIT_PRDR \
+ | ACL_BIT_NOTSMTP | ACL_BIT_QUIT | ACL_BIT_NOTQUIT)
+
/* Situations for spool_write_header() */
/* Codes for ESMTP facilities offered by peer */
-#define OPTION_TLS BIT(0)
-#define OPTION_IGNQ BIT(1)
-#define OPTION_PRDR BIT(2)
-#define OPTION_UTF8 BIT(3)
-#define OPTION_DSN BIT(4)
-#define OPTION_PIPE BIT(5)
-#define OPTION_SIZE BIT(6)
-#define OPTION_CHUNKING BIT(7)
+#define OPTION_TLS BIT(0)
+#define OPTION_IGNQ BIT(1)
+#define OPTION_PRDR BIT(2)
+#define OPTION_UTF8 BIT(3)
+#define OPTION_DSN BIT(4)
+#define OPTION_PIPE BIT(5)
+#define OPTION_SIZE BIT(6)
+#define OPTION_CHUNKING BIT(7)
+#define OPTION_EARLY_PIPE BIT(8)
/* Argument for *_getc */
/* UTF-8 chars for line-drawing */
-#define UTF8_DOWN_RIGHT "\xE2\x94\x8c"
+#define UTF8_DOWN_RIGHT "\xE2\x95\xAD"
+#define UTF8_VERT "\xE2\x94\x82"
#define UTF8_HORIZ "\xE2\x94\x80"
#define UTF8_VERT_RIGHT "\xE2\x94\x9C"
-#define UTF8_UP_RIGHT "\xE2\x94\x94"
+#define UTF8_UP_RIGHT "\xE2\x95\xB0"
#define UTF8_VERT_2DASH "\xE2\x95\x8E"
+#define UTF8_LEFT_TRIANGLE "\xE2\x97\x80"
+#define UTF8_RIGHT_TRIANGLE "\xE2\x96\xB6"
+#define UTF8_LIGHT_SHADE "\xE2\x96\x91"
+#define UTF8_L_ARROW_HOOK "\xE2\x86\xA9"
+
+/* Options on tls_close */
+#define TLS_NO_SHUTDOWN 0 /* Just forget the context */
+#define TLS_SHUTDOWN_NOWAIT 1 /* Send alert; do not wait */
+#define TLS_SHUTDOWN_WAIT 2 /* Send alert & wait for peer's alert */
+#define TLS_SHUTDOWN_WONLY 3 /* only wait for peer's alert */
+#ifdef COMPILE_UTILITY
+# define ALARM(seconds) alarm(seconds);
+# define ALARM_CLR(seconds) alarm(seconds);
+#else
+/* For debugging of odd alarm-signal problems, stash caller info while the
+alarm is active. Clear it down on cancelling the alarm so we can tell there
+should not be one active. */
+
+# define ALARM(seconds) \
+ debug_selector & D_any \
+ ? (sigalarm_setter = CUS __FUNCTION__, alarm(seconds)) : alarm(seconds);
+# define ALARM_CLR(seconds) \
+ debug_selector & D_any \
+ ? (sigalarm_setter = NULL, alarm(seconds)) : alarm(seconds);
+#endif
+
+#define AUTHS_REGEX US"\\n250[\\s\\-]AUTH\\s+([\\-\\w \\t]+)(?:\\n|$)"
+
+#define EARLY_PIPE_FEATURE_NAME "PIPECONNECT"
+#define EARLY_PIPE_FEATURE_LEN 11
+
+
+/* Flags for auth_client_item() */
+
+#define AUTH_ITEM_FIRST BIT(0)
+#define AUTH_ITEM_LAST BIT(1)
+#define AUTH_ITEM_IGN64 BIT(2)
+
+
+/* Flags for tls_{in,out}_resumption */
+#define RESUME_SUPPORTED BIT(0)
+#define RESUME_CLIENT_REQUESTED BIT(1)
+#define RESUME_CLIENT_SUGGESTED BIT(2)
+#define RESUME_SERVER_TICKET BIT(3)
+#define RESUME_USED BIT(4)
+
+#define RESUME_DECODE_STRING \
+ US"not requested or offered" \
+ ": 0x02 :client requested, no server ticket" \
+ ": 0x04 : 0x05 " \
+ ": 0x06 :client offered session, no server action" \
+ ": 0x08 :no client request" \
+ ": 0x0A :client requested new ticket, server provided" \
+ ": 0x0C :client offered session, not used" \
+ ": 0x0E :client offered session, server only provided new ticket" \
+ ": 0x10 :session resumed unasked" \
+ ": 0x12 :session resumed unasked" \
+ ": 0x14 : 0x15" \
+ ": 0x16 :session resumed" \
+ ": 0x18 :session resumed unasked" \
+ ": 0x1A :session resumed unasked" \
+ ": 0x1C :session resumed" \
+ ": 0x1E :session resumed, also new ticket"
+
+/* Flags for string_vformat */
+#define SVFMT_EXTEND BIT(0)
+#define SVFMT_REBUFFER BIT(1)
+#define SVFMT_TAINT_NOCHK BIT(2)
+
+
+#define NOTIFIER_SOCKET_NAME "exim_daemon_notify"
+/* Notify message types */
+#define NOTIFY_MSG_QRUN 1 /* 2stage qrun fast-ramp trigger */
+#define NOTIFY_QUEUE_SIZE_REQ 2 /* obtain current queue count */
+#define NOTIFY_REGEX 3 /* an RE for caching */
+
+/* Flags for match_check_string() */
+typedef unsigned mcs_flags;
+#define MCS_NOFLAGS 0
+#define MCS_PARTIAL BIT(0) /* permit partial- search types */
+#define MCS_CASELESS BIT(1) /* caseless matching where possible */
+#define MCS_AT_SPECIAL BIT(2) /* recognize @, @[], etc. */
+#define MCS_CACHEABLE BIT(3) /* no dynamic expansions used for pattern */
+
+/* Flags for open() */
+#ifdef O_CLOEXEC
+# define EXIM_CLOEXEC O_CLOEXEC
+#else
+# define EXIM_CLOEXEC 0
+#endif
+#ifdef O_NOFOLLOW
+# define EXIM_NOFOLLOW O_NOFOLLOW
+#else
+# define EXIM_NOFOLLOW 0
+#endif
+
+/* A big number for (effectively) unlimited envelope addresses */
+#define UNLIMITED_ADDRS 999999
+
+/* Flags for queue_list() */
+#define QL_BASIC 0
+#define QL_UNDELIVERED_ONLY 1
+#define QL_PLUS_GENERATED 2
+#define QL_MSGID_ONLY 3
+#define QL_UNSORTED 8
+
+/* Flags for transport_set_up_command() */
+#define TSUC_EXPAND_ARGS BIT(0)
+#define TSUC_ALLOW_TAINTED_ARGS BIT(1)
+#define TSUC_ALLOW_RECIPIENTS BIT(2)
+
+/* Flags for smtp_printf */
+#define SP_MORE TRUE
+#define SP_NO_MORE FALSE
+
+/* Flags for smtp_respond */
+#define SR_FINAL TRUE
+#define SR_NOT_FINAL FALSE
+
+/* Flags for continued-TLS-connection */
+#define CTF_CV BIT(0)
+#define CTF_DV BIT(1)
+#define CTF_TR BIT(2)
+
+/* Return codes for smtp_write_mail_and_rcpt_cmds() */
+typedef enum {
+ sw_mrc_ok, /* good, rcpt results in addr->transport_return (PENDING_OK, DEFER, FAIL) */
+ sw_mrc_bad_mail, /* MAIL response error */
+ sw_mrc_bad_read, /* any non-MAIL read i/o error */
+ sw_mrc_nonmail_read_timeo, /* non-MAIL response timeout */
+ sw_mrc_bad_internal, /* internal error; channel still usable */
+ sw_mrc_tx_fail, /* transmit failed */
+} sw_mrc_t;
+
+/* Recent versions of PCRE2 are allocating 20kB per match, rather than the previous 112 B.
+When doing en extended loop of matching, release store periodically. */
+
+#define REGEX_LOOPCOUNT_STORE_RESET 1000
+
+/* Debug an option access. Use for non-list ones about to be expanded
+(lists have their own debugging, under D_list). */
+#define GET_OPTION(name) \
+ DEBUG(D_expand) debug_printf("try option " name "\n");
+
/* End of macros.h */
+/* vi: aw ai sw=2
+*/
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