/************************************************* * 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 */ /* Prototypes for functions that appear in various modules. Gathered together 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_ #include #include #ifndef DISABLE_TLS extern const char * std_dh_prime_default(void); extern const char * std_dh_prime_named(const uschar *); extern uschar * tls_cert_crl_uri(void *, uschar * mod); extern uschar * tls_cert_ext_by_oid(void *, uschar *, int); extern uschar * tls_cert_issuer(void *, uschar * mod); extern uschar * tls_cert_not_before(void *, uschar * mod); extern uschar * tls_cert_not_after(void *, uschar * mod); extern uschar * tls_cert_ocsp_uri(void *, uschar * mod); extern uschar * tls_cert_serial_number(void *, uschar * mod); extern uschar * tls_cert_signature(void *, uschar * mod); extern uschar * tls_cert_signature_algorithm(void *, uschar * mod); extern uschar * tls_cert_subject(void *, uschar * mod); extern uschar * tls_cert_subject_altname(void *, uschar * mod); extern uschar * tls_cert_version(void *, uschar * mod); extern uschar * tls_cert_der_b64(void * cert); extern uschar * tls_cert_fprt_md5(void *); extern uschar * tls_cert_fprt_sha1(void *); extern uschar * tls_cert_fprt_sha256(void *); extern void tls_clean_env(void); extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *, void *, tls_support *, uschar **); extern BOOL tls_client_adjunct_start(host_item *, client_conn_ctx *, const uschar *, uschar **); extern void tls_client_creds_reload(BOOL); extern void tls_close(void *, int); extern BOOL tls_could_getc(void); extern void tls_daemon_init(void); extern int tls_daemon_tick(void); extern BOOL tls_dropprivs_validate_require_cipher(BOOL); extern BOOL tls_export_cert(uschar *, size_t, void *); extern int tls_feof(void); extern int tls_ferror(void); extern uschar *tls_field_from_dn(uschar *, const uschar *); extern void tls_free_cert(void **); extern int tls_getc(unsigned); extern uschar *tls_getbuf(unsigned *); extern void tls_get_cache(unsigned); extern BOOL tls_hasc(void); extern BOOL tls_import_cert(const uschar *, void **); extern BOOL tls_is_name_for_cert(const uschar *, void *); # ifdef USE_OPENSSL extern BOOL tls_openssl_options_parse(uschar *, long *); # endif extern int tls_read(void *, uschar *, size_t); extern int tls_server_start(uschar **); extern void tls_shutdown_wr(void *); extern BOOL tls_smtp_buffered(void); extern void tls_turnaround(int, const uschar *, int); extern int tls_ungetc(int); #if defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT) extern void tls_watch_discard_event(int); extern void tls_watch_invalidate(void); #endif extern int tls_write(void *, const uschar *, size_t, BOOL); extern uschar *tls_validate_require_cipher(void); extern gstring *tls_version_report(gstring *); # ifdef SUPPORT_DANE extern int tlsa_lookup(const host_item *, dns_answer *, BOOL); # endif #endif /*DISABLE_TLS*/ /* Everything else... */ extern acl_block *acl_read(uschar *(*)(void), uschar **); extern int acl_check(int, const uschar *, uschar *, uschar **, uschar **); extern uschar *acl_current_verb(void); extern int acl_eval(int, uschar *, uschar **, uschar **); extern uschar *acl_standalone_setvar(const uschar *, BOOL); extern tree_node *acl_var_create(uschar *); extern void acl_var_write(uschar *, uschar *, void *); extern void add_driver_info(driver_info **, const driver_info *, size_t); extern void assert_no_variables(void *, int, const char *, int); extern int auth_call_pwcheck(uschar *, uschar **); 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); extern int auth_client_item(void *, auth_instance *, const uschar **, unsigned, int, uschar *, int); extern int auth_get_data(uschar **, const uschar *, int); extern int auth_get_no64_data(uschar **, uschar *); extern int auth_prompt(const uschar *); extern int auth_read_input(const uschar *); extern gstring * auth_show_supported(gstring *); extern uschar *authenticator_current_name(void); extern gstring *authres_smtpauth(gstring *); extern uschar *b64encode(const uschar *, int); extern uschar *b64encode_taint(const uschar *, int, const void *); extern int b64decode(const uschar *, uschar **, const void *); extern int bdat_getc(unsigned); extern uschar *bdat_getbuf(unsigned *); extern BOOL bdat_hasc(void); 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 cancel_cutthrough_connection(BOOL, const uschar *); extern gstring *cat_file(FILE *, gstring *, uschar *); extern gstring *cat_file_tls(void *, gstring *, 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_exim_function(int *, const uschar *); extern pid_t child_open_exim2_function(int *, uschar *, uschar *, const uschar *); extern pid_t child_open_function(uschar **, uschar **, int, int *, int *, BOOL, const uschar *); extern pid_t child_open_uid(const uschar **, const uschar **, int, uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *); 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 void release_cutthrough_connection(const uschar *); extern void daemon_go(void); #ifndef COMPILE_UTILITY extern ssize_t daemon_client_sockname(struct sockaddr_un *, uschar **); extern ssize_t daemon_notifier_sockname(struct sockaddr_un *); #endif #ifdef EXPERIMENTAL_DCC extern int dcc_process(uschar **); #endif extern void debug_logging_activate(const uschar *, const uschar *); extern void debug_logging_from_spool(const uschar *); extern void debug_logging_stop(BOOL); 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(const char *, tree_node *); extern void debug_vprintf(int, const char *, va_list); extern void debug_pretrigger_setup(const uschar *); extern void debug_pretrigger_discard(void); extern void debug_print_socket(int); extern void debug_trigger_fire(void); extern void decode_bits(unsigned int *, size_t, int *, const uschar *, bit_table *, int, uschar *, int); extern void delete_pid_file(void); extern void deliver_local(address_item *, BOOL); extern address_item *deliver_make_addr(const uschar *, BOOL); extern void delivery_log(int, address_item *, int, uschar *); extern int deliver_message(const uschar *, BOOL, BOOL); extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2); extern void deliver_set_expansions(address_item *); extern int deliver_split_address(address_item *); extern void deliver_succeeded(address_item *); extern void delivery_re_exec(int); extern void die_tainted(const uschar *, const uschar *, int); extern BOOL directory_make(const uschar *, const uschar *, int, BOOL); extern dns_address *dns_address_from_rr(dns_answer *, dns_record *); extern int dns_basic_lookup(dns_answer *, const uschar *, int); extern uschar *dns_build_reverse(const uschar *); extern time_t dns_expire_from_soa(dns_answer *, int); extern void dns_init(BOOL, BOOL, BOOL); extern BOOL dns_is_aa(const dns_answer *); 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 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 void enq_end(uschar *); extern BOOL enq_start(uschar *, unsigned); #ifndef DISABLE_EVENT extern uschar *event_raise(const uschar *, const uschar *, const uschar *, int *); extern void msg_event_raise(const uschar *, const address_item *); #endif extern int exim_chown_failure(int, const uschar*, uid_t, gid_t); extern const uschar * exim_errstr(int); extern void exim_exit(int) NORETURN; extern void exim_gettime(struct timeval *); extern void exim_nullstd(void); extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *); extern void exim_underbar_exit(int) NORETURN; extern void exim_wait_tick(struct timeval *, int); extern int exp_bool(address_item *, const uschar *, const uschar *, unsigned, uschar *, BOOL bvalue, const uschar *, BOOL *); extern BOOL expand_check_condition(const uschar *, const uschar *, const uschar *); extern uschar *expand_file_big_buffer(const uschar *); extern uschar *expand_string(uschar *); /* public, cannot make const */ extern const uschar *expand_string_2(const uschar *, BOOL *); extern const uschar *expand_cstring(const uschar *); /* ... so use this one */ extern uschar *expand_getkeyed(const uschar *, const uschar *); extern uschar *expand_hide_passwords(uschar * ); extern uschar *expand_string_copy(const uschar *); extern int_eximarith_t expand_string_integer(uschar *, BOOL); extern void modify_variable(uschar *, void *); extern BOOL fd_ready(int, time_t); extern BOOL filter_runtest(int, const uschar *, BOOL, BOOL); extern uschar * fn_hdrs_added(void); extern void force_fd(int, int); 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 uschar *host_and_ident(BOOL); extern int host_aton(const uschar *, int *); extern void host_build_hostlist(host_item **, const uschar *, BOOL); extern ip_address_item *host_build_ifacelist(const uschar *, uschar *); extern void host_build_log_info(void); extern void host_build_sender_fullhost(void); extern int host_find_byname(host_item *, const uschar *, int, const uschar **, BOOL); extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *, uschar *, const dnssec_domains *, const uschar **, BOOL *); extern ip_address_item *host_find_interfaces(void); extern BOOL host_is_in_net(const uschar *, const uschar *, int); extern BOOL host_is_tls_on_connect_port(int); extern int host_item_get_port(host_item *); extern void host_mask(int, int *, int); extern int host_name_lookup(void); extern int host_nmtoa(int, const int *, int, uschar *, int); extern uschar *host_ntoa(int, const void *, uschar *, int *); extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *); extern uschar *imap_utf7_encode(uschar *, const uschar *, uschar, uschar *, 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 int ip_connect(int, int, const uschar *, int, int, const blob *); extern int ip_connectedsocket(int, const uschar *, int, int, int, host_item *, uschar **, const blob *); extern int ip_get_address_family(int); extern void ip_keepalive(int, const uschar *, BOOL); extern int ip_recv(client_conn_ctx *, uschar *, int, time_t); extern int ip_socket(int, int); extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *); extern int ip_unixsocket(const uschar *, uschar **); extern int ip_streamsocket(const uschar *, uschar **, int, host_item *); extern int ipv6_nmtoa(int *, uschar *); extern const uschar *local_part_quote(const uschar *); extern int log_open_as_exim(const uschar * const); extern void log_close_all(void); extern const lookup_info * lookup_with_acq_num(unsigned); #ifdef LOOKUP_MODULE_DIR extern BOOL lookup_one_mod_load(const uschar *, uschar **); #endif 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 *, BOOL, int); extern int malware_in_file(const uschar *); extern void malware_init(void); extern gstring * malware_show_supported(gstring *); #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 * const *, int, tree_node **, unsigned int **, int(*)(void *, const uschar *, const uschar **, uschar **), void *, int, const uschar *, const uschar **); extern int match_isinlist(const uschar *, const uschar * const *, int, tree_node **, unsigned int *, int, BOOL, const uschar **); extern int match_check_string(const uschar *, const uschar *, int, mcs_flags, const uschar **); extern uschar matchlist_parse_sep(const uschar **); extern void message_start(void); extern void message_tidyup(void); extern void md5_end(md5 *, const uschar *, int, uschar *); extern void md5_mid(md5 *, const uschar *); extern void md5_start(md5 *); extern void millisleep(int); #ifdef WITH_CONTENT_SCAN struct mime_boundary_context; extern int mime_acl_check(uschar *acl, FILE *f, struct mime_boundary_context *, uschar **, uschar **); extern int mime_decode(const uschar **); extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *); extern int mime_regex(const uschar **, BOOL); extern void mime_set_anomaly(int); #endif extern gstring *misc_mod_authres(gstring *); extern int misc_mod_conn_init(const uschar *, const uschar *); extern misc_module_info * misc_mod_find(const uschar * modname, uschar **); extern misc_module_info * misc_mod_findonly(const uschar * modname); extern int misc_mod_msg_init(void); extern void misc_mod_smtp_reset(void); extern uschar *moan_check_errorcopy(const 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_send_message(const 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_write_from(FILE *); extern void moan_write_references(FILE *, uschar *); #ifdef LOOKUP_MODULE_DIR //extern void mod_load_check(const uschar *); #endif extern FILE *modefopen(const uschar *, const char *, mode_t); extern int open_cutthrough_connection( address_item * addr ); extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *, BOOL); extern int parse_forward_list(const uschar *, int, address_item **, uschar **, const uschar *, const uschar *, error_block **); extern uschar *parse_find_address_end(const uschar *, BOOL); extern const uschar *parse_find_at(const uschar *); extern const uschar *parse_fix_phrase(const uschar *, int); extern const uschar *parse_message_id(const uschar *, uschar **, uschar **); extern const uschar *parse_quote_2047(const uschar *, int, const uschar *, BOOL); extern const uschar *parse_date_time(const uschar *str, time_t *t); extern void priv_drop_temp(const uid_t, const gid_t); extern void priv_restore(void); #ifdef SUPPORT_PROXY extern BOOL proxy_protocol_host(void); extern void proxy_protocol_setup(void); #endif extern BOOL queue_action(const uschar *, int, const uschar **, int, int); extern void queue_check_only(void); extern unsigned queue_count(void); extern unsigned queue_count_cached(void); extern void queue_list(int, const uschar **, int); #ifndef DISABLE_QUEUE_RAMP extern void queue_notify_daemon(const uschar * hostname); #endif extern void queue_run(qrunner *, const uschar *, const uschar *, BOOL); extern int random_number(int); extern const uschar *rc_to_string(int); extern int rda_interpret(redirect_block *, int, const uschar *, const sieve_block *, const ugid_block *, address_item **, uschar **, error_block **, int *, const uschar *); extern int rda_is_filter(const uschar *); extern BOOL readconf_depends(driver_instance *, uschar *); extern void readconf_driver_init(driver_instance **, driver_info **, int, void *, int, optionlist *, int, const uschar *); extern const uschar *readconf_find_option(const void *); extern void readconf_main(BOOL); extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *); extern BOOL readconf_print(const uschar *, const uschar *, BOOL); extern uschar *readconf_printtime(int); extern const uschar *readconf_readname(uschar *, int, const uschar *); extern int readconf_readtime(const uschar *, int, BOOL); extern void readconf_rest(void); extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *); extern void readconf_save_config(const uschar *); extern void read_message_body(BOOL); extern void receive_bomb_out(uschar *, uschar *) NORETURN; extern BOOL receive_check_fs(int); extern BOOL receive_check_set_sender(const uschar *); extern BOOL receive_msg(BOOL); extern int_eximarith_t receive_statvfs(BOOL, int *); extern void receive_swallow_smtp(void); extern int recv_fd_from_sock(int); #ifdef WITH_CONTENT_SCAN extern int regex(const uschar **, BOOL); extern void regex_vars_clear(void); #endif extern void regex_at_daemon(const uschar *); extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **); extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int); extern const pcre2_code *regex_compile(const uschar *, mcs_flags, uschar **, pcre2_compile_context *); extern const pcre2_code *regex_must_compile(const uschar *, mcs_flags, BOOL); extern void retry_add_item(address_item *, const uschar *, int); extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL, const uschar **, const uschar **); extern retry_config *retry_find_config(const uschar *, const uschar *, int, int); extern const uschar *retry_host_key_build(const host_item *, BOOL, const uschar *); extern BOOL retry_ultimate_address_timeout(const uschar *, const uschar *, dbdata_retry *, time_t); extern void retry_update(address_item **, address_item **, address_item **); extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int); extern const uschar *rewrite_address_qualify(const uschar *, BOOL); extern header_line *rewrite_header(header_line *, const uschar *, const uschar *, rewrite_rule *, int, BOOL); extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *, rewrite_rule *); extern void rewrite_test(const uschar *); extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *, int *, uschar **); extern int route_address(address_item *, address_item **, address_item **, address_item **, address_item **, int); extern int route_check_prefix(const uschar *, const uschar *, unsigned *); extern int route_check_suffix(const uschar *, const uschar *, unsigned *); extern BOOL route_findgroup(uschar *, gid_t *); extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *); extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *, uschar **); extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *, struct passwd **, uid_t *, uschar **); extern void route_init(void); extern gstring * route_show_supported(gstring *); extern void route_tidyup(void); extern uschar *router_current_name(void); extern uschar *search_args(const lookup_info *, uschar *, uschar *, uschar **, const uschar *); extern uschar *search_find(void *, const uschar *, const uschar *, int, const uschar *, int, int, int *, const uschar *); extern const lookup_info * search_findtype(const uschar *, int); extern const lookup_info * search_findtype_partial(const uschar *, int *, const uschar **, int *, int *, const uschar **); extern void *search_open(const uschar *, const lookup_info *, int, uid_t *, gid_t *); extern void search_tidyup(void); extern BOOL send_fd_over_socket(int, int); extern uschar *sender_helo_verified_boolstr(void); extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2); extern void sha1_end(hctx *, const uschar *, int, uschar *); extern void sha1_mid(hctx *, const uschar *); extern void sha1_start(hctx *); extern void sigalrm_handler(int); extern void single_queue_run(qrunner *, const uschar *, const uschar *); extern int smtp_boundsock(smtp_connect_args *); extern void smtp_closedown(uschar *); extern void smtp_command_timeout_exit(void) NORETURN; extern void smtp_command_sigterm_exit(void) NORETURN; extern void smtp_data_timeout_exit(void) NORETURN; extern void smtp_data_sigint_exit(void) NORETURN; extern void smtp_deliver_init(void); extern uschar *smtp_cmd_hist(void); extern int smtp_connect(smtp_connect_args *, 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_getc(unsigned); extern uschar *smtp_getbuf(unsigned *); extern void smtp_get_cache(unsigned); extern BOOL smtp_hasc(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_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN; 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_port_for_connect(host_item *, int); extern void smtp_send_prohibition_message(int, uschar *); extern int smtp_setup_msg(void); extern int smtp_sock_connect(smtp_connect_args *, int, const blob *); extern BOOL smtp_start_session(void); extern int smtp_ungetc(int); extern void smtp_verify_feed(const uschar *, unsigned); extern BOOL smtp_verify_helo(void); extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4); #ifdef WITH_CONTENT_SCAN extern int spam(const uschar **); extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **); #endif extern void spool_clear_header_globals(void); extern int spool_has_one_undelivered_dom(const uschar *); extern BOOL spool_move_message(const uschar *, const uschar *, const uschar *, const uschar *); extern int spool_open_datafile(const uschar *); extern int spool_open_temp(uschar *); extern int spool_read_header(uschar *, BOOL, BOOL); extern uschar *spool_sender_from_msgid(const uschar *); extern int spool_write_header(const uschar *, int, uschar **); extern int stdin_getc(unsigned); extern int stdin_feof(void); extern int stdin_ferror(void); extern BOOL stdin_hasc(void); extern int stdin_ungetc(int); extern void stackdump(void); extern void store_exit(void); extern void store_init(void); extern void store_writeprotect(int); 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_append_listele_fmt(gstring *, uschar, BOOL, const char *, ...) WARN_UNUSED_RESULT; extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT; extern uschar *string_base62_32(unsigned long int); extern uschar *string_base62_64(unsigned long int); 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_dequote(const uschar **); extern uschar *string_format_size(int, uschar *); extern int string_interpret_escape(const uschar **); extern int string_is_ip_address(const uschar *, int *); extern int string_is_ip_addressX(const uschar *, int *, const uschar **); #ifdef SUPPORT_I18N extern BOOL string_is_utf8(const uschar *); #endif extern const uschar *string_printing2(const uschar *, int); extern uschar *string_split_message(uschar *); extern uschar *string_unprinting(uschar *); #ifdef SUPPORT_I18N extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **); extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **); 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 #define string_format(buf, siz, fmt, ...) \ string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__) extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned, const char *, ...) ALMOST_PRINTF(5,6); #define string_vformat(g, flgs, fmt, ap) \ string_vformat_trc(g, US __FUNCTION__, __LINE__, \ STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap) extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned, unsigned, unsigned, const char *, va_list); #define string_open_failed(fmt, ...) \ string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__) extern uschar *string_open_failed_trc(const uschar *, unsigned, const char *, ...) PRINTF_FUNCTION(3,4); #define string_nextinlist(lp, sp, b, l) \ string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__) extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen, const uschar * func, int line); extern int strcmpic(const uschar *, const uschar *); extern int strncmpic(const uschar *, const uschar *, int); extern uschar *strstric(uschar *, uschar *, BOOL); extern const uschar *strstric_c(const uschar *, const uschar *, BOOL); extern int test_harness_fudged_queue_time(int); extern void tcp_init(void); #ifdef EXIM_TFO_PROBE extern void tfo_probe(void); #endif extern void tls_modify_variables(tls_support *); extern uschar *tod_stamp(int); extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *, oicf, void*); extern uschar *transport_current_name(void); extern void transport_do_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int); extern void transport_init(void); extern const uschar *transport_rcpt_address(address_item *, BOOL); extern BOOL transport_set_up_command(const uschar ***, const uschar *, unsigned, int, address_item *, const uschar *, uschar **); extern void transport_update_waiting(host_item *, const uschar *); 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_headers_send(transport_ctx *, BOOL (*)(transport_ctx *, const uschar *, int)); extern gstring * transport_show_supported(gstring *); extern BOOL transport_write_message(transport_ctx *, int); extern void tree_add_duplicate(const uschar *, address_item *); extern void tree_add_nonrecipient(const uschar *); extern void tree_add_unusable(const host_item *); extern void tree_dup(tree_node **, tree_node *); extern int tree_insertnode(tree_node **, tree_node *); extern tree_node *tree_search(tree_node *, const uschar *); extern void tree_write(tree_node *, FILE *); extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *); #ifdef WITH_CONTENT_SCAN extern void unspool_mbox(void); #endif #ifdef SUPPORT_I18N extern gstring *utf8_version_report(gstring *); #endif extern int vaguely_random_number(int); #ifndef DISABLE_TLS extern int vaguely_random_number_fallback(int); #endif extern int verify_address(address_item *, FILE *, int, int, int, int, uschar *, uschar *, BOOL *); extern int verify_check_dnsbl(int, const uschar *, uschar **); extern int verify_check_header_address(uschar **, uschar **, int, int, int, uschar *, uschar *, 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_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(const uschar *); extern void verify_get_ident(int); extern void verify_quota(uschar *); extern int verify_quota_call(const uschar *, int, int, uschar **); extern BOOL verify_sender(int *, uschar **); extern BOOL verify_sender_preliminary(int *, uschar **); extern void version_init(void); extern BOOL write_chunk(transport_ctx *, const uschar *, int); extern ssize_t write_to_fd_buf(int, const uschar *, size_t); extern uschar *wrap_header(const uschar *, unsigned, unsigned, const uschar *, unsigned); #ifdef EXPERIMENTAL_XCLIENT extern uschar * xclient_smtp_command(uschar *, int *, BOOL *); extern gstring * xclient_smtp_advertise_str(gstring *); #endif extern uschar *xtextencode(uschar *, int); extern int xtextdecode(uschar *, uschar **); /******************************************************************************/ /* Predicate: if an address is in a tainted pool. By extension, a variable pointing to this address is tainted. */ static inline BOOL is_tainted(const void * p) { #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C) return FALSE; #else extern BOOL is_tainted_fn(const void *); return is_tainted_fn(p); #endif } static inline BOOL is_incompatible(const void * old, const void * new) { #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C) return FALSE; #else extern BOOL is_incompatible_fn(const void *, const void *); return is_incompatible_fn(old, new); #endif } /******************************************************************************/ /* String functions */ static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line) { #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF) if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line); #endif return US strcat(CS dst, CCS src); } static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line) { #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF) if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line); #endif return US strcpy(CS dst, CCS src); } static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line) { #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF) if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line); #endif return US strncat(CS dst, CCS src, n); } static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line) { #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF) if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line); #endif return US strncpy(CS dst, CCS src, n); } /*XXX will likely need unchecked copy also */ /* Advance the string pointer given over any whitespace. Return the next char as there's enough places using it to be useful. */ #define Uskip_whitespace(sp) skip_whitespace(CUSS sp) static inline uschar skip_whitespace(const uschar ** sp) { while (isspace(**sp)) (*sp)++; return **sp; } /* Ditto, non-whitespace */ #define Uskip_nonwhite(sp) skip_nonwhite(CUSS sp) static inline uschar skip_nonwhite(const uschar ** sp) { while (**sp && !isspace(**sp)) (*sp)++; return **sp; } /******************************************************************************/ #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY) /* exim_chown - in some NFSv4 setups *seemes* to be an issue with chown(, ). 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 && !COMPILE_UTILITY */ /******************************************************************************/ /* String functions */ #if !defined(MACRO_PREDEF) /************************************************* * Copy and save string * *************************************************/ /* This function assumes that memcpy() is faster than strcpy(). The result is explicitly nul-terminated. */ static inline uschar * string_copyn_taint_trc(const uschar * s, unsigned len, const void * proto_mem, const char * func, int line) { uschar * ss; unsigned slen = Ustrlen(s); if (len > slen) len = slen; ss = store_get_3(len + 1, proto_mem, func, line); memcpy(ss, s, len); ss[len] = '\0'; return ss; } static inline uschar * string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line) { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); } static inline uschar * string_copyn_trc(const uschar * s, unsigned len, const char * func, int line) { return string_copyn_taint_trc(s, len, s, func, line); } static inline uschar * string_copy_trc(const uschar * s, const char * func, int line) { return string_copy_taint_trc(s, s, func, line); } /* String-copy functions explicitly setting the taint status */ #define string_copyn_taint(s, len, proto_mem) \ string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__) #define string_copy_taint(s, proto_mem) \ string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__) /* Simple string-copy functions maintaining the taint */ #define string_copyn(s, len) \ string_copyn_trc((s), (len), __FUNCTION__, __LINE__) #define string_copy(s) \ string_copy_trc((s), __FUNCTION__, __LINE__) /************************************************* * Copy, lowercase and save string * *************************************************/ /* Argument: string to copy Returns: copy of string in new store, with letters lowercased */ static inline uschar * string_copylc(const uschar * s) { uschar * ss = store_get(Ustrlen(s) + 1, s); uschar * p = ss; while (*s) *p++ = tolower(*s++); *p = 0; return ss; } /************************************************* * Copy, lowercase, and save string, given length * *************************************************/ /* It is assumed the data contains no zeros. A zero is added onto the end. Arguments: s string to copy n number of characters Returns: copy of string in new store, with letters lowercased */ static inline uschar * string_copynlc(uschar * s, int n) { uschar * ss = store_get(n + 1, s); uschar * p = ss; while (n-- > 0) *p++ = tolower(*s++); *p = 0; return ss; } # ifndef COMPILE_UTILITY /************************************************* * Copy and save string in longterm store * *************************************************/ /* This function assumes that memcpy() is faster than strcpy(). Argument: string to copy Returns: copy of string in new store */ static inline uschar * string_copy_perm(const uschar *s, BOOL force_taint) { int old_pool = store_pool; int len = Ustrlen(s) + 1; uschar *ss; store_pool = POOL_PERM; ss = store_get(len, force_taint ? GET_TAINTED : s); memcpy(ss, s, len); store_pool = old_pool; return ss; } # endif /* sprintf into a buffer, taint-unchecked */ static inline void string_format_nt(uschar * buf, int siz, const char * fmt, ...) { gstring gs = { .size = siz, .ptr = 0, .s = buf }; va_list ap; va_start(ap, fmt); (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap); va_end(ap); } /******************************************************************************/ /* Growable-string functions */ /* Create a growable-string with some preassigned space */ #define string_get_tainted(size, proto_mem) \ string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__) static inline gstring * string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line) { gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line); g->size = size; /*XXX would be good if we could see the actual alloc size */ g->ptr = 0; g->s = US(g + 1); return g; } #define string_get(size) \ string_get_trc((size), __FUNCTION__, __LINE__) static inline gstring * string_get_trc(unsigned size, const char * func, unsigned line) { return string_get_tainted_trc(size, GET_UNTAINTED, func, line); } /* NUL-terminate the C string in the growable-string, and return it. */ static inline uschar * string_from_gstring(gstring * g) { if (!g) return NULL; g->s[g->ptr] = '\0'; return g->s; } static inline int len_string_from_gstring(gstring * g, uschar ** sp) { if (g) { *sp = g->s; g->s[g->ptr] = '\0'; return g->ptr; } else { *sp = NULL; return 0; } } static inline uschar * string_copy_from_gstring(gstring * g) { return g ? string_copyn(g->s, g->ptr) : NULL; } static inline unsigned gstring_length(const gstring * g) { return g ? (unsigned)g->ptr : 0; } static inline uschar gstring_last_char(gstring * g) { return g && g->ptr > 0 ? g->s[g->ptr-1] : '\0'; } static inline void gstring_trim(gstring * g, unsigned amount) { g->ptr -= amount; } static inline void gstring_trim_trailing(gstring * g, uschar c) { if (gstring_last_char(g) == c) gstring_trim(g, 1); } static inline void gstring_reset(gstring * g) { g->ptr = 0; } #define gstring_release_unused(g) \ gstring_release_unused_trc(g, __FUNCTION__, __LINE__) static inline void gstring_release_unused_trc(gstring * g, const char * file, unsigned line) { if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line); } /* plain string append to a growable-string */ static inline gstring * string_cat(gstring * g, const uschar * s) WARN_UNUSED_RESULT; static inline gstring * string_cat(gstring * g, const uschar * s) { return string_catn(g, s, Ustrlen(s)); } /* sprintf-append to a growable-string */ #define string_fmt_append(g, fmt, ...) \ string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \ SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__) #define string_fmt_append_f(g, flgs, fmt, ...) \ string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \ flgs, fmt, __VA_ARGS__) static inline gstring * string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line, unsigned flags, const char *format, ...) { va_list ap; va_start(ap, format); g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE, flags, format, ap); va_end(ap); return g; } /* Copy the content of a string to tainted memory. The proto_mem arg will always be tainted, and suitable as a prototype. */ static inline void gstring_rebuffer(gstring * g, const void * proto_mem) { uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__); memcpy(s, g->s, g->ptr); g->s = s; } /* Append one gstring to another */ static inline gstring * gstring_append(gstring * dest, gstring * item) { return item ? dest ? string_catn(dest, item->s, item->ptr) : item : dest; } # ifndef COMPILE_UTILITY /******************************************************************************/ /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool for them as the strings we proceed to copy from them meant they could not be released, hence blowing 64k for every DNS lookup. That mounted up. With malloc we do have to take care over marking tainted all copied strings. A separate pool could be used and would handle that implicitly. */ #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__) static inline dns_answer * store_get_dns_answer_trc(const uschar * func, unsigned line) { return store_malloc_3(sizeof(dns_answer), CCS func, line); } #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__) static inline void store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line) { store_free_3(dnsa, CCS func, line); } /* Check for an RR being large enough. Return TRUE iff bad. */ static inline BOOL rr_bad_size(const dns_record * rr, size_t minbytes) { return rr->size < minbytes; } /* Check for an RR having further data beyond a given pointer. Return TRUE iff bad. */ static inline BOOL rr_bad_increment(const dns_record * rr, const uschar * ptr, size_t minbytes) { return rr_bad_size(rr, ptr - rr->data + minbytes); } /******************************************************************************/ /* Routines with knowledge of spool layout */ static inline void spool_pname_buf(uschar * buf, int len) { snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name); } static inline uschar * spool_dname(const uschar * purpose, uschar * subdir) { return string_sprintf("%s/%s/%s/%s", spool_directory, queue_name, purpose, subdir); } # endif static inline uschar * spool_q_sname(const uschar * purpose, const uschar * q, const uschar * subdir) { return string_sprintf("%s%s%s%s%s", q, *q ? "/" : "", purpose, *subdir ? "/" : "", subdir); } static inline uschar * spool_sname(const uschar * purpose, const uschar * subdir) { return spool_q_sname(purpose, queue_name, subdir); } static inline uschar * spool_q_fname(const uschar * purpose, const uschar * q, const uschar * subdir, const uschar * fname, const uschar * suffix) { return string_sprintf("%s/%s/%s/%s/%s%s", spool_directory, q, purpose, subdir, fname, suffix); } static inline uschar * spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname, const uschar * suffix) { #ifdef COMPILE_UTILITY /* version avoiding string-extension */ int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1; uschar * buf = store_get(len, GET_UNTAINTED); string_format(buf, len, "%s/%s/%s/%s/%s%s", spool_directory, queue_name, purpose, subdir, fname, suffix); return buf; #else return spool_q_fname(purpose, queue_name, subdir, fname, suffix); #endif } static inline void set_subdir_str(uschar * subdir_str, const uschar * name, int search_sequence) { subdir_str[0] = split_spool_directory == (search_sequence == 0) ? name[MESSAGE_ID_TIME_LEN-1] : '\0'; subdir_str[1] = '\0'; } /******************************************************************************/ /* Message-ID format transition knowlege */ static inline BOOL is_new_message_id(const uschar * id) { return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN] == '-'; } static inline BOOL is_old_message_id(const uschar * id) { return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN_OLD] == '-'; } static inline unsigned spool_data_start_offset(const uschar * id) { if (is_old_message_id(id)) return SPOOL_DATA_START_OFFSET_OLD; return SPOOL_DATA_START_OFFSET; } /******************************************************************************/ /* Time calculations */ /* Diff two times (later, earlier) returning diff in 1st arg */ static inline void timediff(struct timeval * later, const struct timeval * earlier) { later->tv_sec -= earlier->tv_sec; if ((later->tv_usec -= earlier->tv_usec) < 0) { later->tv_sec--; later->tv_usec += 1000*1000; } } static inline void timesince(struct timeval * diff, const struct timeval * then) { gettimeofday(diff, NULL); timediff(diff, then); } static inline uschar * string_timediff(const struct timeval * diff) { static uschar buf[16]; if (diff->tv_sec >= 5 || !LOGGING(millisec)) return readconf_printtime((int)diff->tv_sec); snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000); return buf; } static inline uschar * string_timesince(const struct timeval * then) { struct timeval diff; timesince(&diff, then); return string_timediff(&diff); } static inline void report_time_since(const struct timeval * t0, const uschar * where) { # ifdef MEASURE_TIMING struct timeval diff; timesince(&diff, t0); fprintf(stderr, "%d %s:\t%ld.%06ld\n", (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec); # endif } static inline void testharness_pause_ms(int millisec) { #ifndef MEASURE_TIMING if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec); #endif } /******************************************************************************/ /* Taint-checked file opens. Return values/errno per open(2). */ static inline int exim_open2(const char *pathname, int flags) { if (!is_tainted(pathname)) return open(pathname, flags); log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname); errno = EACCES; return -1; } static inline int exim_open(const char *pathname, int flags, mode_t mode) { if (!is_tainted(pathname)) return open(pathname, flags, mode); log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname); errno = EACCES; return -1; } #ifdef EXIM_HAVE_OPENAT static inline int exim_openat(int dirfd, const char *pathname, int flags) { if (!is_tainted(pathname)) return openat(dirfd, pathname, flags); log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname); errno = EACCES; return -1; } static inline int exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode) { if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode); log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname); errno = EACCES; return -1; } #endif static inline FILE * exim_fopen(const char *pathname, const char *mode) { if (!is_tainted(pathname)) return fopen(pathname, mode); log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname); errno = EACCES; return NULL; } static inline DIR * exim_opendir(const uschar * name) { if (!is_tainted(name)) return opendir(CCS name); log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name); errno = EACCES; return NULL; } /******************************************************************************/ # if !defined(COMPILE_UTILITY) /* We use the PID of the head process for a connection-id. Note that this is only for tracking a received connection and what it directly causes; there is no inttent to describe transport-initiated TCP connections. The value is intented to be a cookie usable for logging, and we might change the generator for it at any time. */ static inline void set_connection_id(void) { connection_id = string_sprintf("%lu", (u_long)getpid()); } /* Process manipulation */ static inline pid_t exim_fork(const unsigned char * purpose) { pid_t pid; DEBUG(D_any) debug_printf_indent("%s forking for %s\n", process_purpose, purpose); if ((pid = fork()) == 0) { f.daemon_listen = FALSE; process_purpose = purpose; DEBUG(D_any) debug_printf_indent("postfork: %s\n", purpose); } else { testharness_pause_ms(100); /* let child work */ DEBUG(D_any) debug_printf_indent("%s forked for %s: %d\n", process_purpose, purpose, (int)pid); } return pid; } static inline pid_t child_open_exim(int * fdptr, const uschar * purpose) { return child_open_exim_function(fdptr, purpose); } static inline pid_t child_open_exim2(int * fdptr, uschar * sender, uschar * sender_auth, const uschar * purpose) { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); } static inline pid_t child_open(uschar **argv, uschar **envp, int newumask, int *infdptr, int *outfdptr, BOOL make_leader, const uschar * purpose) { return child_open_function(argv, envp, newumask, infdptr, outfdptr, make_leader, purpose); } /* Return 1 if fd is usable per pollbits, else 0 */ static inline int poll_one_fd(int fd, short pollbits, int tmo_millisec) { struct pollfd p = {.fd = fd, .events = pollbits}; return poll(&p, 1, tmo_millisec); } /******************************************************************************/ /* Client-side smtp log string, for debug */ static inline void smtp_debug_cmd_log_init(void) { # ifndef DISABLE_CLIENT_CMD_LOG int old_pool = store_pool; store_pool = POOL_PERM; client_cmd_log = string_get_tainted(56, GET_TAINTED); *client_cmd_log->s = '\0'; store_pool = old_pool; # endif } static inline void smtp_debug_cmd(const uschar * buf, int mode) { HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n", mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf); # ifndef DISABLE_CLIENT_CMD_LOG { int len = Ustrcspn(buf, " \n"), old_pool = store_pool; store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */ client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8)); if (mode == SCMD_BUFFER) client_cmd_log = string_catn(client_cmd_log, US"|", 1); else if (mode == SCMD_MORE) client_cmd_log = string_catn(client_cmd_log, US"+", 1); store_pool = old_pool; } # endif } /* This might be called both due to callout and then from delivery. Use memory that will not be released between those phases. */ static inline void smtp_debug_resp(const uschar * buf) { # ifndef DISABLE_CLIENT_CMD_LOG int old_pool = store_pool; store_pool = POOL_PERM; client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, buf[3] == '-' ? 4 : 3); store_pool = old_pool; # endif } static inline void smtp_debug_cmd_report(void) { # ifndef DISABLE_CLIENT_CMD_LOG if (client_cmd_log && *client_cmd_log->s) { debug_printf("cmdlog: '%Y'\n", client_cmd_log); gstring_reset(client_cmd_log); } else debug_printf("cmdlog: (unset)\n"); # endif } static inline int expand_max_rcpt(const uschar * str_max_rcpt) { const uschar * s = expand_cstring(str_max_rcpt); int res; return !s || !*s || (res = Uatoi(s)) == 0 ? UNLIMITED_ADDRS : res; } /******************************************************************************/ /* Queue-runner operations */ static inline BOOL is_onetime_qrun(void) { return qrunners && !qrunners->next && qrunners->interval == 0; } static inline BOOL is_multiple_qrun(void) { return qrunners && (qrunners->interval > 0 || qrunners->next); } # endif /* !COMPILE_UTILITY */ /******************************************************************************/ #endif /* !MACRO_PREDEF */ #endif /* _FUNCTIONS_H_ */ /* vi: aw ai sw=2 */ /* End of functions.h */