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Diffstat (limited to 'src/functions.h')
| -rw-r--r-- | src/functions.h | 1305 |
1 files changed, 1305 insertions, 0 deletions
diff --git a/src/functions.h b/src/functions.h new file mode 100644 index 0000000..224666c --- /dev/null +++ b/src/functions.h @@ -0,0 +1,1305 @@ +/************************************************* +* Exim - an Internet mail transport agent * +*************************************************/ + +/* Copyright (c) The Exim Maintainers 2020 - 2022 */ +/* Copyright (c) University of Cambridge 1995 - 2018 */ +/* See the file NOTICE for conditions of use and distribution. */ + + +/* 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 <ctype.h> +#include <sys/time.h> + + +#ifdef EXIM_PERL +extern gstring *call_perl_cat(gstring *, uschar **, uschar *, + uschar **) WARN_UNUSED_RESULT; +extern void cleanup_perl(void); +extern uschar *init_perl(uschar *); +#endif + + +#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 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 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, uschar *, uschar *, uschar **, uschar **); +extern uschar *acl_current_verb(void); +extern int acl_eval(int, uschar *, uschar **, uschar **); + +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_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 *auth_xtextencode(uschar *, int); +extern int auth_xtextdecode(uschar *, uschar **); +extern uschar *authenticator_current_name(void); + +#ifdef EXPERIMENTAL_ARC +extern gstring *authres_arc(gstring *); +#endif +#ifndef DISABLE_DKIM +extern gstring *authres_dkim(gstring *); +#endif +#ifdef SUPPORT_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 uschar *b64encode_taint(const uschar *, int, const void *); +extern int b64decode(const uschar *, uschar **); +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); + +#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(uschar *, BOOL); +extern void delivery_log(int, address_item *, int, uschar *); +extern int deliver_message(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); +#ifndef DISABLE_DKIM +extern uschar *dkim_exim_query_dns_txt(const 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); +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(uschar *, const uschar *, 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 *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_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 int filter_interpret(const uschar *, int, address_item **, uschar **); +extern BOOL filter_personal(string_item *, BOOL); +extern BOOL filter_runtest(int, uschar *, BOOL, BOOL); +extern BOOL filter_system_interpret(address_item **, uschar **); + +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, 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 uschar *local_part_quote(uschar *); +extern int log_open_as_exim(const uschar * const); +extern void log_close_all(void); + +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 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 **, 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 **, int, tree_node **, + unsigned int *, int, BOOL, const uschar **); +extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL, + 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 **); +extern void mime_set_anomaly(int); +#endif +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_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_write_from(FILE *); +extern void moan_write_references(FILE *, uschar *); +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); +extern int vaguely_random_number(int); +#ifndef DISABLE_TLS +extern int vaguely_random_number_fallback(int); +#endif + +extern BOOL queue_action(uschar *, int, 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, uschar **, int); +#ifndef DISABLE_QUEUE_RAMP +extern void queue_notify_daemon(const uschar * hostname); +#endif +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, const uschar *, const uschar *, + const uschar *, const uschar *, const uschar *, 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(uschar *, driver_instance **, + 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, const uschar *, uschar *); +extern BOOL readconf_print(const uschar *, uschar *, BOOL); +extern uschar *readconf_printtime(int); +extern uschar *readconf_readname(uschar *, int, 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(uschar *); +extern BOOL receive_msg(BOOL); +extern int_eximarith_t receive_statvfs(BOOL, int *); +extern void receive_swallow_smtp(void); +#ifdef WITH_CONTENT_SCAN +extern int regex(const uschar **); +#endif +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_must_compile(const uschar *, BOOL, BOOL); +extern void retry_add_item(address_item *, uschar *, int); +extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL, + uschar **, uschar **); +extern retry_config *retry_find_config(const uschar *, const uschar *, int, int); +extern BOOL retry_ultimate_address_timeout(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(int, uschar *, uschar *, uschar **, const uschar *); +extern uschar *search_find(void *, const uschar *, uschar *, int, + const uschar *, int, int, int *, const uschar *); +extern int search_findtype(const uschar *, int); +extern int search_findtype_partial(const uschar *, int *, const uschar **, int *, + int *, const uschar **); +extern void *search_open(const uschar *, int, int, uid_t *, gid_t *); +extern void search_tidyup(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 int sieve_interpret(const uschar *, int, const uschar *, + const uschar *, const uschar *, const uschar *, + address_item **, uschar **); +extern void sigalrm_handler(int); +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 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 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 uschar *spool_sender_from_msgid(const uschar *); +extern int spool_write_header(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 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_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT; +extern uschar *string_base62(unsigned long 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_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 *); +#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 BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int +#ifdef EXPERIMENTAL_ESMTP_LIMITS + , unsigned, unsigned, unsigned +#endif + ); +extern uschar *transport_rcpt_address(address_item *, BOOL); +extern BOOL transport_set_up_command(const uschar ***, const uschar *, + BOOL, int, address_item *, BOOL, const uschar *, uschar **); +extern void transport_update_waiting(host_item *, 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 *, 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 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(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 *, uschar *, int); +extern ssize_t write_to_fd_buf(int, const uschar *, size_t); + + +/******************************************************************************/ +/* 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 enought 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; } + + +/******************************************************************************/ + +#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 && !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 unsigned +gstring_length(const gstring * g) +{ +return g ? (unsigned)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); +} + + +/* 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; +} + + +# 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); +} + +/******************************************************************************/ +/* 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, uschar * subdir) +{ +return string_sprintf("%s%s%s%s%s", + q, *q ? "/" : "", + purpose, + *subdir ? "/" : "", subdir); +} + +static inline uschar * +spool_sname(const uschar * purpose, 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[5] : '\0'; +subdir_str[1] = '\0'; +} + +/******************************************************************************/ +/* 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[sizeof("0.000s")]; + +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 */ + +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) +/* Process manipulation */ + +static inline pid_t +exim_fork(const unsigned char * purpose) +{ +pid_t pid; +DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose); +if ((pid = fork()) == 0) + { + process_purpose = purpose; + DEBUG(D_any) debug_printf("postfork: %s\n", purpose); + } +else + { + testharness_pause_ms(100); /* let child work */ + DEBUG(D_any) debug_printf("%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(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"); + int 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); + (void) string_from_gstring(client_cmd_log); + } + store_pool = old_pool; + } +# endif +} + + +static inline void +smtp_debug_cmd_report(void) +{ +# ifndef DISABLE_CLIENT_CMD_LOG +debug_printf("cmdlog: '%s'\n", client_cmd_log ? client_cmd_log->s : US"(unset)"); +# endif +} + + + +# endif /* !COMPILE_UTILITY */ + +/******************************************************************************/ +#endif /* !MACRO_PREDEF */ + +#endif /* _FUNCTIONS_H_ */ + +/* vi: aw +*/ +/* End of functions.h */ |