PIPE_CONNECT: promote from experimental

[exim.git] / src / src / functions.h

diff --git a/src/src/functions.h b/src/src/functions.h
index 05386d105e54280f4a53562957929978e69fa8e4..33e296c13d62b2960265b326f30d0bd1e44652b0 100644 (file)
--- a/src/src/functions.h
+++ b/src/src/functions.h
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 

-/* Copyright (c) University of Cambridge 1995 - 2016 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */

 /* See the file NOTICE for conditions of use and distribution. */
 
 
 /* See the file NOTICE for conditions of use and distribution. */
 
 


@@ -10,17 +10,19 @@
 to avoid having a lot of tiddly little headers with only a couple of lines in
 them. However, some functions that are used (or not used) by utility programs
 are in in fact in separate headers. */
 to avoid having a lot of tiddly little headers with only a couple of lines in
 them. However, some functions that are used (or not used) by utility programs
 are in in fact in separate headers. */

+#ifndef _FUNCTIONS_H_
+#define _FUNCTIONS_H_

 
 
 #ifdef EXIM_PERL
 
 
 #ifdef EXIM_PERL

-extern uschar *call_perl_cat(uschar *, int *, int *, uschar **, uschar *,
-                 uschar **);
+extern gstring *call_perl_cat(gstring *, uschar **, uschar *,
+                 uschar **) WARN_UNUSED_RESULT;

 extern void    cleanup_perl(void);
 extern uschar *init_perl(uschar *);
 #endif
 
 
 extern void    cleanup_perl(void);
 extern uschar *init_perl(uschar *);
 #endif
 
 

-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS

 extern const char *
                std_dh_prime_default(void);
 extern const char *
 extern const char *
                std_dh_prime_default(void);
 extern const char *


@@ -44,38 +46,38 @@ extern uschar * tls_cert_fprt_md5(void *);
 extern uschar * tls_cert_fprt_sha1(void *);
 extern uschar * tls_cert_fprt_sha256(void *);
 
 extern uschar * tls_cert_fprt_sha1(void *);
 extern uschar * tls_cert_fprt_sha256(void *);
 

-extern int     tls_client_start(int, host_item *, address_item *,
-                transport_instance *
-# ifdef EXPERIMENTAL_DANE
-               , dns_answer *
-# endif
-                               );
-extern void    tls_close(BOOL, BOOL);
+extern BOOL    tls_client_start(client_conn_ctx *, smtp_connect_args *,
+                 void *, tls_support *, uschar **);
+
+extern void    tls_close(void *, int);
+extern BOOL    tls_could_read(void);
+extern void    tls_daemon_init(void);

 extern int     tls_export_cert(uschar *, size_t, void *);
 extern int     tls_feof(void);
 extern int     tls_ferror(void);
 extern void    tls_free_cert(void **);
 extern int     tls_export_cert(uschar *, size_t, void *);
 extern int     tls_feof(void);
 extern int     tls_ferror(void);
 extern void    tls_free_cert(void **);

-extern int     tls_getc(void);
+extern int     tls_getc(unsigned);
+extern uschar *tls_getbuf(unsigned *);

 extern void    tls_get_cache(void);
 extern int     tls_import_cert(const uschar *, void **);
 extern void    tls_get_cache(void);
 extern int     tls_import_cert(const uschar *, void **);

-extern int     tls_read(BOOL, uschar *, size_t);
-extern int     tls_server_start(const uschar *);
+extern int     tls_read(void *, uschar *, size_t);
+extern int     tls_server_start(const uschar *, uschar **);

 extern BOOL    tls_smtp_buffered(void);
 extern int     tls_ungetc(int);
 extern BOOL    tls_smtp_buffered(void);
 extern int     tls_ungetc(int);

-extern int     tls_write(BOOL, const uschar *, size_t);
+extern int     tls_write(void *, const uschar *, size_t, BOOL);

 extern uschar *tls_validate_require_cipher(void);
 extern void    tls_version_report(FILE *);
 extern uschar *tls_validate_require_cipher(void);
 extern void    tls_version_report(FILE *);

-# ifndef USE_GNUTLS
+# ifdef USE_OPENSSL

 extern BOOL    tls_openssl_options_parse(uschar *, long *);
 # endif
 extern uschar * tls_field_from_dn(uschar *, const uschar *);
 extern BOOL    tls_is_name_for_cert(const uschar *, void *);
 
 extern BOOL    tls_openssl_options_parse(uschar *, long *);
 # endif
 extern uschar * tls_field_from_dn(uschar *, const uschar *);
 extern BOOL    tls_is_name_for_cert(const uschar *, void *);
 

-# ifdef EXPERIMENTAL_DANE
+# ifdef SUPPORT_DANE

 extern int     tlsa_lookup(const host_item *, dns_answer *, BOOL);
 # endif
 
 extern int     tlsa_lookup(const host_item *, dns_answer *, BOOL);
 # endif
 

-#endif /*SUPPORT_TLS*/
+#endif /*DISABLE_TLS*/

 
 
 /* Everything else... */
 
 
 /* Everything else... */


@@ -86,6 +88,17 @@ extern int     acl_eval(int, uschar *, uschar **, uschar **);
 
 extern tree_node *acl_var_create(uschar *);
 extern void    acl_var_write(uschar *, uschar *, void *);
 
 extern tree_node *acl_var_create(uschar *);
 extern void    acl_var_write(uschar *, uschar *, void *);

+
+#ifdef EXPERIMENTAL_ARC
+extern void   *arc_ams_setup_sign_bodyhash(void);
+extern const uschar *arc_header_feed(gstring *, BOOL);
+extern gstring *arc_sign(const uschar *, gstring *, uschar **);
+extern void     arc_sign_init(void);
+extern const uschar *acl_verify_arc(void);
+extern uschar * fn_arc_domains(void);
+#endif
+
+extern void    assert_no_variables(void *, int, const char *, int);

 extern int     auth_call_pam(const uschar *, uschar **);
 extern int     auth_call_pwcheck(uschar *, uschar **);
 extern int     auth_call_radius(const uschar *, uschar **);
 extern int     auth_call_pam(const uschar *, uschar **);
 extern int     auth_call_pwcheck(uschar *, uschar **);
 extern int     auth_call_radius(const uschar *, uschar **);


@@ -93,30 +106,55 @@ extern int     auth_call_saslauthd(const uschar *, const uschar *,
                 const uschar *, const uschar *, uschar **);
 extern int     auth_check_serv_cond(auth_instance *);
 extern int     auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
                 const uschar *, const uschar *, uschar **);
 extern int     auth_check_serv_cond(auth_instance *);
 extern int     auth_check_some_cond(auth_instance *, uschar *, uschar *, int);

+extern int     auth_client_item(void *, auth_instance *, const uschar **,
+                unsigned, int, uschar *, int);
+

 
 

-extern int     auth_get_data(uschar **, uschar *, int);
+extern int     auth_get_data(uschar **, const uschar *, int);

 extern int     auth_get_no64_data(uschar **, uschar *);
 extern int     auth_get_no64_data(uschar **, uschar *);

+extern int     auth_prompt(const uschar *);
+extern int     auth_read_input(const uschar *);
+extern void    auth_show_supported(FILE *);

 extern uschar *auth_xtextencode(uschar *, int);
 extern int     auth_xtextdecode(uschar *, uschar **);
 
 extern uschar *auth_xtextencode(uschar *, int);
 extern int     auth_xtextdecode(uschar *, uschar **);
 

-extern uschar *b64encode(uschar *, int);
-extern int     b64decode(uschar *, uschar **);
-extern int     bdat_getc(void);
+#ifdef EXPERIMENTAL_ARC
+extern gstring *authres_arc(gstring *);
+#endif
+#ifndef DISABLE_DKIM
+extern gstring *authres_dkim(gstring *);
+#endif
+#ifdef EXPERIMENTAL_DMARC
+extern gstring *authres_dmarc(gstring *);
+#endif
+extern gstring *authres_smtpauth(gstring *);
+#ifdef SUPPORT_SPF
+extern gstring *authres_spf(gstring *);
+#endif
+
+extern uschar *b64encode(const uschar *, int);
+extern int     b64decode(const uschar *, uschar **);
+extern int     bdat_getc(unsigned);
+extern uschar *bdat_getbuf(unsigned *);
+extern int     bdat_ungetc(int);
+extern void    bdat_flush_data(void);
+

 extern void    bits_clear(unsigned int *, size_t, int *);
 extern void    bits_set(unsigned int *, size_t, int *);
 
 extern void    bits_clear(unsigned int *, size_t, int *);
 extern void    bits_set(unsigned int *, size_t, int *);
 

-extern void    cancel_cutthrough_connection(const char *);
+extern void    cancel_cutthrough_connection(BOOL, const uschar *);

 extern int     check_host(void *, const uschar *, const uschar **, uschar **);
 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
 extern pid_t   child_open_uid(const uschar **, const uschar **, int,
                 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
 extern BOOL    cleanup_environment(void);
 extern int     check_host(void *, const uschar *, const uschar **, uschar **);
 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
 extern pid_t   child_open_uid(const uschar **, const uschar **, int,
                 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
 extern BOOL    cleanup_environment(void);

+extern void    cutthrough_data_puts(uschar *, int);
+extern void    cutthrough_data_put_nl(void);

 extern uschar *cutthrough_finaldot(void);
 extern BOOL    cutthrough_flush_send(void);
 extern BOOL    cutthrough_headers_send(void);
 extern BOOL    cutthrough_predata(void);
 extern uschar *cutthrough_finaldot(void);
 extern BOOL    cutthrough_flush_send(void);
 extern BOOL    cutthrough_headers_send(void);
 extern BOOL    cutthrough_predata(void);

-extern BOOL    cutthrough_puts(uschar *, int);
-extern BOOL    cutthrough_put_nl(void);
+extern void    release_cutthrough_connection(const uschar *);

 
 extern void    daemon_go(void);
 
 
 extern void    daemon_go(void);
 


@@ -128,9 +166,10 @@ extern void    debug_logging_activate(uschar *, uschar *);
 extern void    debug_logging_stop(void);
 extern void    debug_print_argv(const uschar **);
 extern void    debug_print_ids(uschar *);
 extern void    debug_logging_stop(void);
 extern void    debug_print_argv(const uschar **);
 extern void    debug_print_ids(uschar *);

+extern void    debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);

 extern void    debug_print_string(uschar *);
 extern void    debug_print_tree(tree_node *);
 extern void    debug_print_string(uschar *);
 extern void    debug_print_tree(tree_node *);

-extern void    debug_vprintf(const char *, va_list);
+extern void    debug_vprintf(int, const char *, va_list);

 extern void    decode_bits(unsigned int *, size_t, int *,
                   uschar *, bit_table *, int, uschar *, int);
 extern address_item *deliver_make_addr(uschar *, BOOL);
 extern void    decode_bits(unsigned int *, size_t, int *,
                   uschar *, bit_table *, int, uschar *, int);
 extern address_item *deliver_make_addr(uschar *, BOOL);


@@ -143,11 +182,15 @@ extern int     deliver_split_address(address_item *);
 extern void    deliver_succeeded(address_item *);
 
 extern uschar *deliver_get_sender_address (uschar *id);
 extern void    deliver_succeeded(address_item *);
 
 extern uschar *deliver_get_sender_address (uschar *id);

+extern void    delivery_re_exec(int);

 
 extern BOOL    directory_make(const uschar *, const uschar *, int, BOOL);
 #ifndef DISABLE_DKIM
 
 extern BOOL    directory_make(const uschar *, const uschar *, int, BOOL);
 #ifndef DISABLE_DKIM

-extern BOOL    dkim_transport_write_message(int, transport_ctx *,
-                 struct ob_dkim *);
+extern uschar *dkim_exim_query_dns_txt(uschar *);
+extern void    dkim_exim_sign_init(void);
+
+extern BOOL    dkim_transport_write_message(transport_ctx *,
+                 struct ob_dkim *, const uschar ** errstr);

 #endif
 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
 extern int     dns_basic_lookup(dns_answer *, const uschar *, int);
 #endif
 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
 extern int     dns_basic_lookup(dns_answer *, const uschar *, int);


@@ -158,7 +201,7 @@ extern BOOL    dns_is_secure(const dns_answer *);
 extern int     dns_lookup(dns_answer *, const uschar *, int, const uschar **);
 extern void    dns_pattern_init(void);
 extern int     dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
 extern int     dns_lookup(dns_answer *, const uschar *, int, const uschar **);
 extern void    dns_pattern_init(void);
 extern int     dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);

-extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
+extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);

 extern uschar *dns_text_type(int);
 extern void    dscp_list_to_stream(FILE *);
 extern BOOL    dscp_lookup(const uschar *, int, int *, int *, int *);
 extern uschar *dns_text_type(int);
 extern void    dscp_list_to_stream(FILE *);
 extern BOOL    dscp_lookup(const uschar *, int, int *, int *, int *);


@@ -169,17 +212,18 @@ extern BOOL    enq_start(uschar *, unsigned);
 extern uschar *event_raise(uschar *, const uschar *, uschar *);
 extern void    msg_event_raise(const uschar *, const address_item *);
 #endif
 extern uschar *event_raise(uschar *, const uschar *, uschar *);
 extern void    msg_event_raise(const uschar *, const address_item *);
 #endif

-extern uschar  ehlo_response(uschar *, size_t, uschar);
+
+extern int     exim_chown_failure(int, const uschar*, uid_t, gid_t);

 extern const uschar * exim_errstr(int);
 extern const uschar * exim_errstr(int);

-extern void    exim_exit(int);
+extern void    exim_exit(int, const uschar *);

 extern void    exim_nullstd(void);
 extern void    exim_setugid(uid_t, gid_t, BOOL, uschar *);
 extern void    exim_nullstd(void);
 extern void    exim_setugid(uid_t, gid_t, BOOL, uschar *);

-extern int     exim_tvcmp(struct timeval *, struct timeval *);

 extern void    exim_wait_tick(struct timeval *, int);
 extern int     exp_bool(address_item *addr,
   uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
   uschar *svalue, BOOL *rvalue);
 extern BOOL    expand_check_condition(uschar *, uschar *, uschar *);
 extern void    exim_wait_tick(struct timeval *, int);
 extern int     exp_bool(address_item *addr,
   uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
   uschar *svalue, BOOL *rvalue);
 extern BOOL    expand_check_condition(uschar *, uschar *, uschar *);

+extern uschar *expand_file_big_buffer(const uschar *);

 extern uschar *expand_string(uschar *);        /* public, cannot make const */
 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
 extern uschar *expand_hide_passwords(uschar * );
 extern uschar *expand_string(uschar *);        /* public, cannot make const */
 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
 extern uschar *expand_hide_passwords(uschar * );


@@ -196,7 +240,10 @@ extern BOOL    filter_system_interpret(address_item **, uschar **);
 
 extern uschar * fn_hdrs_added(void);
 
 
 extern uschar * fn_hdrs_added(void);
 

+extern void    gstring_reset_unused(gstring *);
+

 extern void    header_add(int, const char *, ...);
 extern void    header_add(int, const char *, ...);

+extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);

 extern int     header_checkname(header_line *, BOOL);
 extern BOOL    header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
 extern int     host_address_extract_port(uschar *);
 extern int     header_checkname(header_line *, BOOL);
 extern BOOL    header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
 extern int     host_address_extract_port(uschar *);


@@ -226,12 +273,12 @@ extern uschar *imap_utf7_encode(uschar *, const uschar *,
 extern void    invert_address(uschar *, uschar *);
 extern int     ip_addr(void *, int, const uschar *, int);
 extern int     ip_bind(int, int, uschar *, int);
 extern void    invert_address(uschar *, uschar *);
 extern int     ip_addr(void *, int, const uschar *, int);
 extern int     ip_bind(int, int, uschar *, int);

-extern int     ip_connect(int, int, const uschar *, int, int, BOOL);
+extern int     ip_connect(int, int, const uschar *, int, int, const blob *);

 extern int     ip_connectedsocket(int, const uschar *, int, int,
 extern int     ip_connectedsocket(int, const uschar *, int, int,

-                 int, host_item *, uschar **);
+                 int, host_item *, uschar **, const blob *);

 extern int     ip_get_address_family(int);
 extern void    ip_keepalive(int, const uschar *, BOOL);
 extern int     ip_get_address_family(int);
 extern void    ip_keepalive(int, const uschar *, BOOL);

-extern int     ip_recv(int, uschar *, int, int);
+extern int     ip_recv(client_conn_ctx *, uschar *, int, int);

 extern int     ip_socket(int, int);
 
 extern int     ip_tcpsocket(const uschar *, uschar **, int);
 extern int     ip_socket(int, int);
 
 extern int     ip_tcpsocket(const uschar *, uschar **, int);


@@ -245,15 +292,19 @@ extern int     log_create(uschar *);
 extern int     log_create_as_exim(uschar *);
 extern void    log_close_all(void);
 
 extern int     log_create_as_exim(uschar *);
 extern void    log_close_all(void);
 

-extern macro_item * macro_create(const uschar *, const uschar *, BOOL, BOOL);
+extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
+extern BOOL    macro_read_assignment(uschar *);
+extern uschar *macros_expand(int, int *, BOOL *);

 extern void    mainlog_close(void);
 #ifdef WITH_CONTENT_SCAN
 extern int     malware(const uschar *, int);
 extern int     malware_in_file(uschar *);
 extern void    malware_init(void);
 extern void    mainlog_close(void);
 #ifdef WITH_CONTENT_SCAN
 extern int     malware(const uschar *, int);
 extern int     malware_in_file(uschar *);
 extern void    malware_init(void);

+extern void    malware_show_supported(FILE *);

 #endif
 extern int     match_address_list(const uschar *, BOOL, BOOL, const uschar **,
                  unsigned int *, int, int, const uschar **);
 #endif
 extern int     match_address_list(const uschar *, BOOL, BOOL, const uschar **,
                  unsigned int *, int, int, const uschar **);

+extern int     match_address_list_basic(const uschar *, const uschar **, int);

 extern int     match_check_list(const uschar **, int, tree_node **, unsigned int **,
                  int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
                  const uschar *, const uschar **);
 extern int     match_check_list(const uschar **, int, tree_node **, unsigned int **,
                  int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
                  const uschar *, const uschar **);


@@ -278,6 +329,8 @@ extern uschar *moan_check_errorcopy(uschar *);
 extern BOOL    moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
                  BOOL, uschar *);
 extern void    moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
 extern BOOL    moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
                  BOOL, uschar *);
 extern void    moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);

+extern BOOL    moan_send_message(uschar *, int, error_block *eblock,
+                header_line *, FILE *, uschar *);

 extern void    moan_tell_someone(uschar *, address_item *,
                  const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
 extern BOOL    moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
 extern void    moan_tell_someone(uschar *, address_item *,
                  const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
 extern BOOL    moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);


@@ -297,7 +350,7 @@ extern uschar *parse_message_id(uschar *, uschar **, uschar **);
 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
 extern uschar *parse_date_time(uschar *str, time_t *t);
 extern int     vaguely_random_number(int);
 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
 extern uschar *parse_date_time(uschar *str, time_t *t);
 extern int     vaguely_random_number(int);

-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS

 extern int     vaguely_random_number_fallback(int);
 #endif
 
 extern int     vaguely_random_number_fallback(int);
 #endif
 


@@ -308,6 +361,7 @@ extern void    queue_count(void);
 extern void    queue_run(uschar *, uschar *, BOOL);
 
 extern int     random_number(int);
 extern void    queue_run(uschar *, uschar *, BOOL);
 
 extern int     random_number(int);

+extern const uschar *rc_to_string(int);

 extern int     rda_interpret(redirect_block *, int, uschar *, uschar *,
                  uschar *, uschar *, uschar *, ugid_block *, address_item **,
                  uschar **, error_block **, int *, uschar *);
 extern int     rda_interpret(redirect_block *, int, uschar *, uschar *,
                  uschar *, uschar *, uschar *, ugid_block *, address_item **,
                  uschar **, error_block **, int *, uschar *);


@@ -317,10 +371,8 @@ extern void    readconf_driver_init(uschar *, driver_instance **,
                  driver_info *, int, void *, int, optionlist *, int);
 extern uschar *readconf_find_option(void *);
 extern void    readconf_main(BOOL);
                  driver_info *, int, void *, int, optionlist *, int);
 extern uschar *readconf_find_option(void *);
 extern void    readconf_main(BOOL);

-extern void    readconf_options_from_list(optionlist *, unsigned, uschar *);
-extern void    readconf_options_routers(void);
-extern void    readconf_options_transports(void);
-extern void    readconf_print(uschar *, uschar *, BOOL);
+extern void    readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
+extern BOOL    readconf_print(uschar *, uschar *, BOOL);

 extern uschar *readconf_printtime(int);
 extern uschar *readconf_readname(uschar *, int, uschar *);
 extern int     readconf_readtime(const uschar *, int, BOOL);
 extern uschar *readconf_printtime(int);
 extern uschar *readconf_readname(uschar *, int, uschar *);
 extern int     readconf_readtime(const uschar *, int, BOOL);


@@ -332,7 +384,7 @@ extern void    receive_bomb_out(uschar *, uschar *);
 extern BOOL    receive_check_fs(int);
 extern BOOL    receive_check_set_sender(uschar *);
 extern BOOL    receive_msg(BOOL);
 extern BOOL    receive_check_fs(int);
 extern BOOL    receive_check_set_sender(uschar *);
 extern BOOL    receive_msg(BOOL);

-extern int     receive_statvfs(BOOL, int *);
+extern int_eximarith_t receive_statvfs(BOOL, int *);

 extern void    receive_swallow_smtp(void);
 #ifdef WITH_CONTENT_SCAN
 extern int     regex(const uschar **);
 extern void    receive_swallow_smtp(void);
 #ifdef WITH_CONTENT_SCAN
 extern int     regex(const uschar **);


@@ -367,6 +419,7 @@ extern BOOL    route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
 extern BOOL    route_find_expanded_user(uschar *, uschar *, uschar *,
                  struct passwd **, uid_t *, uschar **);
 extern void    route_init(void);
 extern BOOL    route_find_expanded_user(uschar *, uschar *, uschar *,
                  struct passwd **, uid_t *, uschar **);
 extern void    route_init(void);

+extern void    route_show_supported(FILE *);

 extern void    route_tidyup(void);
 
 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
 extern void    route_tidyup(void);
 
 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,


@@ -385,60 +438,73 @@ extern int     sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
 extern void    sigalrm_handler(int);
 extern BOOL    smtp_buffered(void);
 extern void    smtp_closedown(uschar *);
 extern void    sigalrm_handler(int);
 extern BOOL    smtp_buffered(void);
 extern void    smtp_closedown(uschar *);

-extern int     smtp_connect(host_item *, int, int, uschar *, int,
-                transport_instance *);
+extern void    smtp_command_timeout_exit(void);
+extern void    smtp_command_sigterm_exit(void);
+extern void    smtp_data_timeout_exit(void);
+extern void    smtp_data_sigint_exit(void);
+extern uschar *smtp_cmd_hist(void);
+extern int     smtp_connect(smtp_connect_args *, const blob *);

 extern int     smtp_sock_connect(host_item *, int, int, uschar *,
 extern int     smtp_sock_connect(host_item *, int, int, uschar *,

-                transport_instance * tb, int);
+                transport_instance * tb, int, const blob *);

 extern int     smtp_feof(void);
 extern int     smtp_ferror(void);
 extern uschar *smtp_get_connection_info(void);
 extern BOOL    smtp_get_interface(uschar *, int, address_item *,
                  uschar **, uschar *);
 extern BOOL    smtp_get_port(uschar *, address_item *, int *, uschar *);
 extern int     smtp_feof(void);
 extern int     smtp_ferror(void);
 extern uschar *smtp_get_connection_info(void);
 extern BOOL    smtp_get_interface(uschar *, int, address_item *,
                  uschar **, uschar *);
 extern BOOL    smtp_get_port(uschar *, address_item *, int *, uschar *);

-extern int     smtp_getc(void);
+extern int     smtp_getc(unsigned);
+extern uschar *smtp_getbuf(unsigned *);

 extern void    smtp_get_cache(void);
 extern int     smtp_handle_acl_fail(int, int, uschar *, uschar *);
 extern void    smtp_log_no_mail(void);
 extern void    smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
 extern void    smtp_get_cache(void);
 extern int     smtp_handle_acl_fail(int, int, uschar *, uschar *);
 extern void    smtp_log_no_mail(void);
 extern void    smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);

-extern BOOL    smtp_read_response(smtp_inblock *, uschar *, int, int, int);
+extern void    smtp_proxy_tls(void *, uschar *, size_t, int *, int);
+extern BOOL    smtp_read_response(void *, uschar *, int, int, int);
+extern void    smtp_reset(void *);

 extern void    smtp_respond(uschar *, int, BOOL, uschar *);
 extern void    smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
 extern void    smtp_respond(uschar *, int, BOOL, uschar *);
 extern void    smtp_notquit_exit(uschar *, uschar *, uschar *, ...);

+extern void    smtp_port_for_connect(host_item *, int);

 extern void    smtp_send_prohibition_message(int, uschar *);
 extern int     smtp_setup_msg(void);
 extern BOOL    smtp_start_session(void);
 extern int     smtp_ungetc(int);
 extern BOOL    smtp_verify_helo(void);
 extern void    smtp_send_prohibition_message(int, uschar *);
 extern int     smtp_setup_msg(void);
 extern BOOL    smtp_start_session(void);
 extern int     smtp_ungetc(int);
 extern BOOL    smtp_verify_helo(void);

-extern int     smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
+extern int     smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);

 #ifdef WITH_CONTENT_SCAN
 extern int     spam(const uschar **);
 #ifdef WITH_CONTENT_SCAN
 extern int     spam(const uschar **);

-extern FILE   *spool_mbox(unsigned long *, const uschar *);
+extern FILE   *spool_mbox(unsigned long *, const uschar *, uschar **);

 #endif
 #endif

-extern BOOL    spool_move_message(uschar *, uschar *, uschar *, uschar *);
+extern void    spool_clear_header_globals(void);

 extern uschar *spool_dname(const uschar *, uschar *);
 extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
 extern uschar *spool_dname(const uschar *, uschar *);
 extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);

-extern uschar *spool_sname(const uschar *, uschar *);
+extern BOOL    spool_move_message(uschar *, uschar *, uschar *, uschar *);

 extern int     spool_open_datafile(uschar *);
 extern int     spool_open_temp(uschar *);
 extern int     spool_read_header(uschar *, BOOL, BOOL);
 extern int     spool_open_datafile(uschar *);
 extern int     spool_open_temp(uschar *);
 extern int     spool_read_header(uschar *, BOOL, BOOL);

+extern uschar *spool_sname(const uschar *, uschar *);

 extern int     spool_write_header(uschar *, int, uschar **);
 extern int     spool_write_header(uschar *, int, uschar **);

-extern int     stdin_getc(void);
+extern int     stdin_getc(unsigned);

 extern int     stdin_feof(void);
 extern int     stdin_ferror(void);
 extern int     stdin_ungetc(int);
 extern int     stdin_feof(void);
 extern int     stdin_ferror(void);
 extern int     stdin_ungetc(int);

-extern uschar *string_append(uschar *, int *, int *, int, ...);
-extern uschar *string_append_listele(uschar *, uschar, const uschar *);
-extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
+extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
+extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
+extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
+extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;

 extern uschar *string_base62(unsigned long int);
 extern uschar *string_base62(unsigned long int);

-extern uschar *string_cat(uschar *, int *, int *, const uschar *);
-extern uschar *string_catn(uschar *, int *, int *, const uschar *, int);
+extern gstring *string_cat (gstring *, const uschar *     ) WARN_UNUSED_RESULT;
+extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;

 extern int     string_compare_by_pointer(const void *, const void *);
 extern uschar *string_copy_dnsdomain(uschar *);
 extern uschar *string_copy_malloc(const uschar *);
 extern uschar *string_copylc(const uschar *);
 extern uschar *string_copynlc(uschar *, int);
 extern uschar *string_dequote(const uschar **);
 extern int     string_compare_by_pointer(const void *, const void *);
 extern uschar *string_copy_dnsdomain(uschar *);
 extern uschar *string_copy_malloc(const uschar *);
 extern uschar *string_copylc(const uschar *);
 extern uschar *string_copynlc(uschar *, int);
 extern uschar *string_dequote(const uschar **);

+extern gstring *string_fmt_append(gstring *, const char *, ...) ALMOST_PRINTF(2,3);

 extern BOOL    string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
 extern uschar *string_format_size(int, uschar *);
 extern BOOL    string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
 extern uschar *string_format_size(int, uschar *);

+extern uschar *string_from_gstring(gstring *);
+extern gstring *string_get(unsigned);

 extern int     string_interpret_escape(const uschar **);
 extern int     string_is_ip_address(const uschar *, int *);
 #ifdef SUPPORT_I18N
 extern int     string_interpret_escape(const uschar **);
 extern int     string_is_ip_address(const uschar *, int *);
 #ifdef SUPPORT_I18N


@@ -448,6 +514,8 @@ extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
 extern const uschar *string_printing2(const uschar *, BOOL);
 extern uschar *string_split_message(uschar *);
 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
 extern const uschar *string_printing2(const uschar *, BOOL);
 extern uschar *string_split_message(uschar *);

+extern uschar *string_timediff(struct timeval *);
+extern uschar *string_timesince(struct timeval *);

 extern uschar *string_unprinting(uschar *);
 #ifdef SUPPORT_I18N
 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
 extern uschar *string_unprinting(uschar *);
 #ifdef SUPPORT_I18N
 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);


@@ -456,28 +524,36 @@ extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
 #endif
 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
 #endif

-extern BOOL    string_vformat(uschar *, int, const char *, va_list);
+extern gstring *string_vformat(gstring *, BOOL, const char *, va_list);

 extern int     strcmpic(const uschar *, const uschar *);
 extern int     strncmpic(const uschar *, const uschar *, int);
 extern uschar *strstric(uschar *, uschar *, BOOL);
 
 extern int     strcmpic(const uschar *, const uschar *);
 extern int     strncmpic(const uschar *, const uschar *, int);
 extern uschar *strstric(uschar *, uschar *, BOOL);
 

+#ifdef EXIM_TFO_PROBE
+extern void    tfo_probe(void);
+#endif
+extern void    timesince(struct timeval * diff, struct timeval * then);
+extern void    tls_modify_variables(tls_support *);

 extern uschar *tod_stamp(int);
 
 extern uschar *tod_stamp(int);
 

-extern void    tls_modify_variables(tls_support *);

 extern BOOL    transport_check_waiting(const uschar *, const uschar *, int, uschar *,
                  BOOL *, oicf, void*);
 extern void    transport_init(void);
 extern BOOL    transport_check_waiting(const uschar *, const uschar *, int, uschar *,
                  BOOL *, oicf, void*);
 extern void    transport_init(void);

+extern void    transport_do_pass_socket(const uschar *, const uschar *,
+                const uschar *, uschar *, int);

 extern BOOL    transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
                  int);
 extern uschar *transport_rcpt_address(address_item *, BOOL);
 extern BOOL    transport_set_up_command(const uschar ***, uschar *,
                 BOOL, int, address_item *, uschar *, uschar **);
 extern void    transport_update_waiting(host_item *, uschar *);
 extern BOOL    transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
                  int);
 extern uschar *transport_rcpt_address(address_item *, BOOL);
 extern BOOL    transport_set_up_command(const uschar ***, uschar *,
                 BOOL, int, address_item *, uschar *, uschar **);
 extern void    transport_update_waiting(host_item *, uschar *);

-extern BOOL    transport_write_block(int, uschar *, int);
+extern BOOL    transport_write_block(transport_ctx *, uschar *, int, BOOL);
+extern void    transport_write_reset(int);

 extern BOOL    transport_write_string(int, const char *, ...);
 extern BOOL    transport_write_string(int, const char *, ...);

-extern BOOL    transport_headers_send(int, transport_ctx *,
-                 BOOL (*)(int, transport_ctx *, uschar *, int));
-extern BOOL    transport_write_message(int, transport_ctx *, int);
+extern BOOL    transport_headers_send(transport_ctx *,
+                 BOOL (*)(transport_ctx *, uschar *, int));
+extern void    transport_show_supported(FILE *);
+extern BOOL    transport_write_message(transport_ctx *, int);

 extern void    tree_add_duplicate(uschar *, address_item *);
 extern void    tree_add_nonrecipient(uschar *);
 extern void    tree_add_unusable(host_item *);
 extern void    tree_add_duplicate(uschar *, address_item *);
 extern void    tree_add_nonrecipient(uschar *);
 extern void    tree_add_unusable(host_item *);


@@ -501,8 +577,8 @@ extern int     verify_check_header_address(uschar **, uschar **, int, int, int,
 extern int     verify_check_headers(uschar **);
 extern int     verify_check_header_names_ascii(uschar **);
 extern int     verify_check_host(uschar **);
 extern int     verify_check_headers(uschar **);
 extern int     verify_check_header_names_ascii(uschar **);
 extern int     verify_check_host(uschar **);

-extern int     verify_check_notblind(void);
-extern int     verify_check_given_host(uschar **, host_item *);
+extern int     verify_check_notblind(BOOL);
+extern int     verify_check_given_host(const uschar **, const host_item *);

 extern int     verify_check_this_host(const uschar **, unsigned int *,
                 const uschar*, const uschar *, const uschar **);
 extern address_item *verify_checked_sender(uschar *);
 extern int     verify_check_this_host(const uschar **, unsigned int *,
                 const uschar*, const uschar *, const uschar **);
 extern address_item *verify_checked_sender(uschar *);


@@ -511,8 +587,46 @@ extern BOOL    verify_sender(int *, uschar **);
 extern BOOL    verify_sender_preliminary(int *, uschar **);
 extern void    version_init(void);
 
 extern BOOL    verify_sender_preliminary(int *, uschar **);
 extern void    version_init(void);
 

+extern BOOL    write_chunk(transport_ctx *, uschar *, int);

 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
 
 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
 

+
+#if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
+/* exim_chown - in some NFSv4 setups *seemes* to be an issue with
+chown(<exim-uid>, <exim-gid>).
+
+Probably because the idmapping is broken, misconfigured or set up in
+an unusal way. (see Bug 2931). As I'm not sure, if this was a single
+case of misconfiguration, or if there are more such broken systems
+out, I try to impose as least impact as possible and for now just write
+a panic log entry pointing to the bug report. You're encouraged to
+contact the developers, if you experience this issue.
+
+fd     the file descriptor (or -1 if not valid)
+name   the file name for error messages or for file operations,
+  if fd is < 0
+owner  the owner
+group  the group
+
+returns 0 on success, -1 on failure */
+
+static inline int
+exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
+{
+return fchown(fd, owner, group)
+  ? exim_chown_failure(fd, name, owner, group) : 0;
+}
+
+static inline int
+exim_chown(const uschar *name, uid_t owner, gid_t group)
+{
+return chown(CCS name, owner, group)
+  ? exim_chown_failure(-1, name, owner, group) : 0;
+}
+#endif /* !MACRO_PREDEF */
+
+#endif  /* _FUNCTIONS_H_ */
+

 /* vi: aw
 */
 /* End of functions.h */
 /* vi: aw
 */
 /* End of functions.h */