-/* $Cambridge: exim/src/src/macros.h,v 1.12 2005/04/07 10:54:54 ph10 Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
/* See the file NOTICE for conditions of use and distribution. */
#define mac_string(s) # s
#define mac_expanded_string(s) mac_string(s)
+/* Number of elements of an array */
+#define nelem(arr) (sizeof(arr) / sizeof(*arr))
+
+
+/* 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())
+
/* The address_item structure has a word full of 1-bit flags. These macros
manipulate them. */
((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_active < 0) fflush(smtp_out);
+#define mac_smtp_fflush() if (tls_in.active < 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(a,b) ((lookup_list[a]->type & (b)) != 0)
/* Debugging control */
#define DEBUG(x) if ((debug_selector & (x)) != 0)
#define HDEBUG(x) if (host_checking || (debug_selector & (x)) != 0)
+#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)
+
+/* The default From: text for DSNs */
+
+#define DEFAULT_DSN_FROM "Mail Delivery System <Mailer-Daemon@$qualify_domain>"
+
/* The size of the vector for saving/restoring address expansion pointers while
verifying. This has to be explicit because it is referenced in more than one
source module. */
#define LOG_BUFFER_SIZE 8192
+/* The size of the circular buffer that remembers recent SMTP commands */
+
+#define SMTP_HBUFF_SIZE 20
+
/* 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. */
#if defined PATH_MAX && PATH_MAX > 16384
-#define BIG_BUFFER_SIZE PATH_MAX
+# define BIG_BUFFER_SIZE PATH_MAX
#elif defined MAXPATHLEN && MAXPATHLEN > 16384
-#define BIG_BUFFER_SIZE MAXPATHLEN
+# define BIG_BUFFER_SIZE MAXPATHLEN
#else
-#define BIG_BUFFER_SIZE 16384
+# define BIG_BUFFER_SIZE 16384
#endif
+/* header size of pipe content
+ currently: char id, char subid, char[5] length */
+#define PIPE_HEADER_SIZE 7
+
/* This limits the length of data returned by local_scan(). Because it is
written on the spool, it gets read into big_buffer. */
#define WAIT_NAME_MAX 50
-/* The numbers of connection and message variables for ACLs */
-
-#define ACL_C_MAX 10
-#define ACL_M_MAX 10
+/* 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
/* Fixed option values for all PCRE functions */
/* Options for dns_next_rr */
-enum { RESET_NEXT, RESET_ANSWERS, RESET_ADDITIONAL };
+enum { RESET_NEXT, RESET_ANSWERS, RESET_AUTHORITY, RESET_ADDITIONAL };
/* Argument values for the time-of-day function */
-enum { tod_log, tod_log_bare, tod_log_zone, tod_log_datestamp,
- tod_zone, tod_full, tod_bsdin, tod_mbx, tod_epoch, tod_zulu };
+enum { tod_log, tod_log_bare, tod_log_zone, tod_log_datestamp_daily,
+ tod_log_datestamp_monthly, tod_zone, tod_full, tod_bsdin,
+ tod_mbx, tod_epoch, tod_epoch_l, tod_zulu };
/* For identifying types of driver */
ERRMESS_TOOMANYRECIP, /* Too many recipients */
ERRMESS_LOCAL_SCAN, /* Rejected by local scan */
ERRMESS_LOCAL_ACL /* Rejected by non-SMTP ACL */
+#ifdef EXPERIMENTAL_DMARC
+ ,ERRMESS_DMARC_FORENSIC /* DMARC Forensic Report */
+#endif
};
/* Error handling styles - set by option, and apply only when receiving
#define END_SIZE 4 /* Reading ended because message too big */
#define END_WERROR 5 /* Write error while reading the message */
-/* Options bits for debugging; D_v and D_local_scan are also in local_scan.h */
-
-#define D_v 0x00000001
-#define D_local_scan 0x00000002
-
-#define D_acl 0x00000004
-#define D_auth 0x00000008
-#define D_deliver 0x00000010
-#define D_dns 0x00000020
-#define D_dnsbl 0x00000040
-#define D_exec 0x00000080
-#define D_expand 0x00000100
-#define D_filter 0x00000200
-#define D_hints_lookup 0x00000400
-#define D_host_lookup 0x00000800
-#define D_ident 0x00001000
-#define D_interface 0x00002000
-#define D_lists 0x00004000
-#define D_load 0x00008000
-#define D_lookup 0x00010000
-#define D_memory 0x00020000
-#define D_pid 0x00040000
-#define D_process_info 0x00080000
-#define D_queue_run 0x00100000
-#define D_receive 0x00200000
-#define D_resolver 0x00400000
-#define D_retry 0x00800000
-#define D_rewrite 0x01000000
-#define D_route 0x02000000
-#define D_timestamp 0x04000000
-#define D_tls 0x08000000
-#define D_transport 0x10000000
-#define D_uid 0x20000000
-#define D_verify 0x40000000
+/* Bit masks for debug and log selectors */
+
+/* Assume words are 32 bits wide. Tiny waste of space on 64 bit
+platforms, but this ensures bit vectors always work the same way. */
+#define BITWORDSIZE 32
+
+/* This macro is for single-word bit vectors: the debug selector,
+and the first word of the log selector. */
+#define BIT(n) (1 << (n))
+
+/* And these are for multi-word vectors. */
+#define BITWORD(n) ( (n) / BITWORDSIZE)
+#define BITMASK(n) (1 << (n) % BITWORDSIZE)
+
+#define BIT_CLEAR(s,z,n) ((s)[BITWORD(n)] &= ~BITMASK(n))
+#define BIT_SET(s,z,n) ((s)[BITWORD(n)] |= BITMASK(n))
+#define BIT_TEST(s,z,n) (((s)[BITWORD(n)] & BITMASK(n)) != 0)
+
+/* Used in globals.c for initializing bit_table structures. T will be either
+D or L correspondong to the debug and log selector bits declared below. */
+
+#define BIT_TABLE(T,name) { US #name, T##i_##name }
+
+/* IOTA allows us to keep an implicit sequential count, like a simple enum,
+but we can have sequentially numbered identifiers which are not declared
+sequentially. We use this for more compact declarations of bit indexes and
+masks, alternating between sequential bit index and corresponding mask. */
+
+#define IOTA(iota) (__LINE__ - iota)
+#define IOTA_INIT(zero) (__LINE__ - zero + 1)
+
+/* 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().
+
+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)
+
+enum {
+ Di_all = -1,
+ Di_v = 0,
+ Di_local_scan = 1,
+
+ Di_iota = IOTA_INIT(2),
+ DEBUG_BIT(acl),
+ DEBUG_BIT(auth),
+ DEBUG_BIT(deliver),
+ DEBUG_BIT(dns),
+ DEBUG_BIT(dnsbl),
+ DEBUG_BIT(exec),
+ DEBUG_BIT(expand),
+ DEBUG_BIT(filter),
+ DEBUG_BIT(hints_lookup),
+ DEBUG_BIT(host_lookup),
+ DEBUG_BIT(ident),
+ DEBUG_BIT(interface),
+ DEBUG_BIT(lists),
+ DEBUG_BIT(load),
+ DEBUG_BIT(lookup),
+ DEBUG_BIT(memory),
+ DEBUG_BIT(pid),
+ DEBUG_BIT(process_info),
+ DEBUG_BIT(queue_run),
+ DEBUG_BIT(receive),
+ DEBUG_BIT(resolver),
+ DEBUG_BIT(retry),
+ DEBUG_BIT(rewrite),
+ DEBUG_BIT(route),
+ DEBUG_BIT(timestamp),
+ DEBUG_BIT(tls),
+ DEBUG_BIT(transport),
+ DEBUG_BIT(uid),
+ DEBUG_BIT(verify),
+};
+
+/* Multi-bit debug masks */
#define D_all 0xffffffff
D_pid | \
D_timestamp) )
-#define D_default (D_all & \
+#define D_default (0xffffffff & \
~(D_expand | \
D_filter | \
D_interface | \
D_timestamp | \
D_resolver))
-/* Options bits for logging. Those that will end up in log_write_selector have
-values < 0x80000000. They can be used in calls to log_write(). The others have
-values > 0x80000000 and are put into log_extra_selector (without the top bit).
-These are only ever tested independently. "All" is a magic value that is used
-only in the name table to set all options in both bit maps. */
-
-#define L_all 0xffffffff
-
-#define L_address_rewrite 0x00000001
-#define L_all_parents 0x00000002
-#define L_connection_reject 0x00000004
-#define L_delay_delivery 0x00000008
-#define L_dnslist_defer 0x00000010
-#define L_etrn 0x00000020
-#define L_host_lookup_failed 0x00000040
-#define L_lost_incoming_connection 0x00000080
-#define L_queue_run 0x00000100
-#define L_retry_defer 0x00000200
-#define L_size_reject 0x00000400
-#define L_skip_delivery 0x00000800
-#define L_smtp_connection 0x00001000
-#define L_smtp_incomplete_transaction 0x00002000
-#define L_smtp_protocol_error 0x00004000
-#define L_smtp_syntax_error 0x00008000
-
-#define LX_arguments 0x80000001
-#define LX_deliver_time 0x80000002
-#define LX_delivery_size 0x80000004
-#define LX_ident_timeout 0x80000008
-#define LX_incoming_interface 0x80000010
-#define LX_incoming_port 0x80000020
-#define LX_outgoing_port 0x80000040
-#define LX_queue_time 0x80000080
-#define LX_queue_time_overall 0x80000100
-#define LX_received_sender 0x80000200
-#define LX_received_recipients 0x80000400
-#define LX_rejected_header 0x80000800
-#define LX_return_path_on_delivery 0x80001000
-#define LX_sender_on_delivery 0x80002000
-#define LX_smtp_confirmation 0x80004000
-#define LX_subject 0x80008000
-#define LX_tls_certificate_verified 0x80010000
-#define LX_tls_cipher 0x80020000
-#define LX_tls_peerdn 0x80040000
-
-#define L_default (L_connection_reject | \
- L_delay_delivery | \
- L_dnslist_defer | \
- L_etrn | \
- L_host_lookup_failed | \
- L_lost_incoming_connection | \
- L_queue_run | \
- L_retry_defer | \
- L_size_reject | \
- L_skip_delivery)
-
-#define LX_default ((LX_rejected_header | \
- LX_tls_cipher) & 0x7fffffff)
+/* 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(). */
+
+#define LOG_BIT(name) Li_##name = IOTA(Li_iota), L_##name = BIT(Li_##name)
+
+enum {
+ Li_all = -1,
+
+ Li_iota = IOTA_INIT(0),
+ LOG_BIT(address_rewrite),
+ LOG_BIT(all_parents),
+ LOG_BIT(connection_reject),
+ LOG_BIT(delay_delivery),
+ LOG_BIT(dnslist_defer),
+ LOG_BIT(etrn),
+ LOG_BIT(host_lookup_failed),
+ LOG_BIT(lost_incoming_connection),
+ LOG_BIT(queue_run),
+ LOG_BIT(retry_defer),
+ LOG_BIT(size_reject),
+ LOG_BIT(skip_delivery),
+ LOG_BIT(smtp_connection),
+ LOG_BIT(smtp_incomplete_transaction),
+ LOG_BIT(smtp_protocol_error),
+ LOG_BIT(smtp_syntax_error),
+
+ Li_acl_warn_skipped = BITWORDSIZE,
+ Li_arguments,
+ Li_deliver_time,
+ Li_delivery_size,
+ Li_ident_timeout,
+ Li_incoming_interface,
+ Li_incoming_port,
+ Li_outgoing_port,
+ Li_pid,
+ Li_queue_time,
+ Li_queue_time_overall,
+ Li_received_sender,
+ Li_received_recipients,
+ Li_rejected_header,
+ Li_return_path_on_delivery,
+ Li_sender_on_delivery,
+ Li_sender_verify_fail,
+ Li_smtp_confirmation,
+ Li_smtp_no_mail,
+ Li_subject,
+ Li_tls_certificate_verified,
+ Li_tls_cipher,
+ Li_tls_peerdn,
+ Li_tls_sni,
+ Li_unknown_in_list,
+ Li_8bitmime,
+ Li_smtp_mailauth,
+ Li_proxy,
+ Li_outgoing_interface,
+
+ log_selector_size = BITWORD(Li_outgoing_interface) + 1
+};
+
+#define LOGGING(opt) BIT_TEST(log_selector, log_selector_size, Li_##opt)
/* Private error numbers for delivery failures, set negative so as not
-to conflict with system errno values. */
+to conflict with system errno values. Take care to maintain the string
+table exim_errstrings[] in log.c */
#define ERRNO_UNKNOWNERROR (-1)
#define ERRNO_USERSLASH (-2)
#define ERRNO_UIDFAIL (-29) /* Failed to get uid */
#define ERRNO_BADTRANSPORT (-30) /* Unset or non-existent transport */
#define ERRNO_MBXLENGTH (-31) /* MBX length mismatch */
-#define ERRNO_UNKNOWNHOST (-32) /* Lookup failed in smtp transport */
+#define ERRNO_UNKNOWNHOST (-32) /* Lookup failed routing or in smtp tpt */
#define ERRNO_FORMATUNKNOWN (-33) /* Can't match format in appendfile */
#define ERRNO_BADCREATE (-34) /* Creation outside home in appendfile */
#define ERRNO_LISTDEFER (-35) /* Can't check a list; lookup defer */
#define ERRNO_AUTHFAIL (-42) /* When required by client */
#define ERRNO_CONNECTTIMEOUT (-43) /* Used internally in smtp transport */
#define ERRNO_RCPT4XX (-44) /* RCPT gave 4xx error */
+#define ERRNO_MAIL4XX (-45) /* MAIL gave 4xx error */
+#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
/* These must be last, so all retry deferments can easily be identified */
#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 */
+
+
/* Special actions to take after failure or deferment. */
#define RDO_REWRITE 0x00020000 /* Rewrite generated addresses */
#define RDO_EXIM_FILTER 0x00040000 /* Forbid Exim filters */
#define RDO_SIEVE_FILTER 0x00080000 /* Forbid Sieve filters */
+#define RDO_PREPEND_HOME 0x00100000 /* Prepend $home to relative paths in Exim filter save commands */
/* This is the set that apply to expansions in filters */
enum { RDON_BLACKHOLE, RDON_DEFER, RDON_EACCES, RDON_ENOTDIR, RDON_EXISTS,
RDON_FAIL, RDON_FILTER, RDON_FREEZE, RDON_INCLUDE, RDON_LOG, RDON_LOOKUP,
RDON_PERL, RDON_READFILE, RDON_READSOCK, RDON_RUN, RDON_DLFUNC, RDON_REALLOG,
- RDON_REWRITE, RDON_EXIM_FILTER, RDON_SIEVE_FILTER };
+ RDON_REWRITE, RDON_EXIM_FILTER, RDON_SIEVE_FILTER, RDON_PREPEND_HOME };
/* Results of filter or forward file processing. Some are only from a filter;
some are only from a forward file. */
enum { opt_bit = 32, opt_bool_verify, opt_bool_set, opt_expand_bool,
opt_bool_last,
opt_rewrite, opt_timelist, opt_uid, opt_gid, opt_uidlist, opt_gidlist,
- opt_expand_uid, opt_expand_gid, opt_void };
+ opt_expand_uid, opt_expand_gid, opt_func, opt_void };
/* There's a high-ish bit which is used to flag duplicate options, kept
for compatibility, which shouldn't be output. Also used for hidden options
#define opt_public 0x200 /* Stored in the main instance block */
#define opt_set 0x400 /* Option is set */
#define opt_secure 0x800 /* "hide" prefix used */
-#define opt_mask 0x0ff
+#define opt_rep_con 0x1000 /* Can be appended to by a repeated line (condition) */
+#define opt_rep_str 0x2000 /* Can be appended to by a repeated line (string) */
+#define opt_mask 0x00ff
/* Verify types when directing and routing */
#define vopt_is_recipient 0x0002
#define vopt_qualify 0x0004
#define vopt_expn 0x0008
-#define vopt_callout_postmaster 0x0010 /* during callout */
+#define vopt_callout_fullpm 0x0010 /* full postmaster during callout */
#define vopt_callout_random 0x0020 /* during callout */
#define vopt_callout_no_cache 0x0040 /* disable callout cache */
#define vopt_callout_recipsender 0x0080 /* use real sender to verify recip */
#define vopt_callout_recippmaster 0x0100 /* use postmaster to verify recip */
+#define vopt_success_on_redirect 0x0200
/* Values for fields in callout cache records */
#define ccache_unknown 0 /* test hasn't been done */
#define ccache_accept 1
-#define ccache_reject 2
+#define ccache_reject 2 /* All rejections except */
+#define ccache_reject_mfnull 3 /* MAIL FROM:<> was rejected */
/* Options for lookup functions */
#define lookup_querystyle 1 /* query-style lookup */
#define lookup_absfile 2 /* requires absolute file name */
+#define lookup_absfilequery 4 /* query-style starts with file name */
/* Status values for host_item blocks. Require hstatus_unusable and
hstatus_unusable_expired to be last. */
#define LOG_MAIN 1 /* Write to the main log */
#define LOG_PANIC 2 /* Write to the panic log */
#define LOG_PANIC_DIE 6 /* Write to the panic log and then die */
-#define LOG_PROCESS 8 /* Write to the process log */
#define LOG_REJECT 16 /* Write to the reject log, with headers */
#define LOG_SENDER 32 /* Add raw sender to the message */
#define LOG_RECIPIENTS 64 /* Add raw recipients to the message */
#define LOG_CONFIG_FOR (256+128) /* Add " for" instead of ":\n" */
#define LOG_CONFIG_IN (512+128) /* Add " in line x[ of file y]" */
+/* and for debug_bits() logging action control: */
+#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". */
+
+enum { SCH_NONE, SCH_AUTH, SCH_DATA, SCH_EHLO, SCH_ETRN, SCH_EXPN, SCH_HELO,
+ SCH_HELP, SCH_MAIL, SCH_NOOP, SCH_QUIT, SCH_RCPT, SCH_RSET, SCH_STARTTLS,
+ SCH_VRFY };
+
/* Returns from host_find_by{name,dns}() */
enum {
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,
+ /* 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 };
/* Returns from the spool_read_header() function */
#define topt_no_body 0x040 /* Omit body */
#define topt_escape_headers 0x080 /* Apply escape check to headers */
-/* Codes for the host_find_failed option. */
+/* Flags for recipient_block, used in DSN support */
+
+#define rf_dsnlasthop 0x01 /* Do not propagate DSN any further */
+#define rf_notify_never 0x02 /* NOTIFY= settings */
+#define rf_notify_success 0x04
+#define rf_notify_failure 0x08
+#define rf_notify_delay 0x10
+
+#define rf_dsnflags (rf_notify_never | rf_notify_success | \
+ rf_notify_failure | rf_notify_delay)
+
+/* DSN RET types */
+
+#define dsn_ret_full 1
+#define dsn_ret_hdrs 2
+
+#define dsn_support_unknown 0
+#define dsn_support_yes 1
+#define dsn_support_no 2
+
+
+/* Codes for the host_find_failed and host_all_ignored options. */
#define hff_freeze 0
#define hff_defer 1
#define hff_pass 2
#define hff_decline 3
#define hff_fail 4
+#define hff_ignore 5
/* Router information flags */
ACL_WHERE_MAIL, /* ) */
ACL_WHERE_PREDATA, /* ) There are several tests for "in message", */
ACL_WHERE_MIME, /* ) implemented by <= WHERE_NOTSMTP */
+ ACL_WHERE_DKIM, /* ) */
ACL_WHERE_DATA, /* ) */
+#ifndef DISABLE_PRDR
+ ACL_WHERE_PRDR, /* ) */
+#endif
ACL_WHERE_NOTSMTP, /* ) */
ACL_WHERE_AUTH, /* These remaining ones are not currently */
ACL_WHERE_EXPN,
ACL_WHERE_HELO,
ACL_WHERE_MAILAUTH,
+ ACL_WHERE_NOTSMTP_START,
+ ACL_WHERE_NOTQUIT,
ACL_WHERE_QUIT,
ACL_WHERE_STARTTLS,
- ACL_WHERE_VRFY
+ ACL_WHERE_VRFY,
+
+ ACL_WHERE_DELIVERY,
+ ACL_WHERE_UNKNOWN /* Currently used by a ${acl:name} expansion */
};
/* Situations for spool_write_header() */
enum { FILTER_UNSET, FILTER_FORWARD, FILTER_EXIM, FILTER_SIEVE };
+/* Codes for ESMTP facilities offered by peer */
+
+#define PEER_OFFERED_TLS BIT(0)
+#define PEER_OFFERED_IGNQ BIT(1)
+#define PEER_OFFERED_PRDR BIT(2)
+#define PEER_OFFERED_UTF8 BIT(3)
+#define PEER_OFFERED_DSN BIT(4)
+#define PEER_OFFERED_PIPE BIT(5)
+#define PEER_OFFERED_SIZE BIT(6)
+
+
/* End of macros.h */
git://git.exim.org / users / jgh / exim.git / blobdiff