src/src/functions.h

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2018 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8
   9 /* Prototypes for functions that appear in various modules. Gathered together
  10 to avoid having a lot of tiddly little headers with only a couple of lines in
  11 them. However, some functions that are used (or not used) by utility programs
  12 are in in fact in separate headers. */
  13 #ifndef _FUNCTIONS_H_
  14 #define _FUNCTIONS_H_
  15
  16 #include <sys/time.h>
  17
  18
  19 #ifdef EXIM_PERL
  20 extern gstring *call_perl_cat(gstring *, uschar **, uschar *,
  21                  uschar **) WARN_UNUSED_RESULT;
  22 extern void    cleanup_perl(void);
  23 extern uschar *init_perl(uschar *);
  24 #endif
  25
  26
  27 #ifndef DISABLE_TLS
  28 extern const char *
  29                std_dh_prime_default(void);
  30 extern const char *
  31                std_dh_prime_named(const uschar *);
  32
  33 extern uschar * tls_cert_crl_uri(void *, uschar * mod);
  34 extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
  35 extern uschar * tls_cert_issuer(void *, uschar * mod);
  36 extern uschar * tls_cert_not_before(void *, uschar * mod);
  37 extern uschar * tls_cert_not_after(void *, uschar * mod);
  38 extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
  39 extern uschar * tls_cert_serial_number(void *, uschar * mod);
  40 extern uschar * tls_cert_signature(void *, uschar * mod);
  41 extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
  42 extern uschar * tls_cert_subject(void *, uschar * mod);
  43 extern uschar * tls_cert_subject_altname(void *, uschar * mod);
  44 extern uschar * tls_cert_version(void *, uschar * mod);
  45
  46 extern uschar * tls_cert_der_b64(void * cert);
  47 extern uschar * tls_cert_fprt_md5(void *);
  48 extern uschar * tls_cert_fprt_sha1(void *);
  49 extern uschar * tls_cert_fprt_sha256(void *);
  50
  51 extern void    tls_clean_env(void);
  52 extern BOOL    tls_client_start(client_conn_ctx *, smtp_connect_args *,
  53                   void *, tls_support *, uschar **);
  54
  55 extern void    tls_close(void *, int);
  56 extern BOOL    tls_could_read(void);
  57 extern void    tls_daemon_init(void);
  58 extern BOOL    tls_dropprivs_validate_require_cipher(BOOL);
  59 extern BOOL    tls_export_cert(uschar *, size_t, void *);
  60 extern int     tls_feof(void);
  61 extern int     tls_ferror(void);
  62 extern void    tls_free_cert(void **);
  63 extern int     tls_getc(unsigned);
  64 extern uschar *tls_getbuf(unsigned *);
  65 extern void    tls_get_cache(void);
  66 extern BOOL    tls_import_cert(const uschar *, void **);
  67 extern int     tls_read(void *, uschar *, size_t);
  68 extern int     tls_server_start(const uschar *, uschar **);
  69 extern BOOL    tls_smtp_buffered(void);
  70 extern int     tls_ungetc(int);
  71 extern int     tls_write(void *, const uschar *, size_t, BOOL);
  72 extern uschar *tls_validate_require_cipher(void);
  73 extern void    tls_version_report(FILE *);
  74 # ifdef USE_OPENSSL
  75 extern BOOL    tls_openssl_options_parse(uschar *, long *);
  76 # endif
  77 extern uschar * tls_field_from_dn(uschar *, const uschar *);
  78 extern BOOL    tls_is_name_for_cert(const uschar *, void *);
  79
  80 # ifdef SUPPORT_DANE
  81 extern int     tlsa_lookup(const host_item *, dns_answer *, BOOL);
  82 # endif
  83
  84 #endif  /*DISABLE_TLS*/
  85
  86
  87 /* Everything else... */
  88
  89 extern acl_block *acl_read(uschar *(*)(void), uschar **);
  90 extern int     acl_check(int, uschar *, uschar *, uschar **, uschar **);
  91 extern int     acl_eval(int, uschar *, uschar **, uschar **);
  92
  93 extern tree_node *acl_var_create(uschar *);
  94 extern void    acl_var_write(uschar *, uschar *, void *);
  95
  96 #ifdef EXPERIMENTAL_ARC
  97 extern void   *arc_ams_setup_sign_bodyhash(void);
  98 extern const uschar *arc_header_feed(gstring *, BOOL);
  99 extern gstring *arc_sign(const uschar *, gstring *, uschar **);
 100 extern void     arc_sign_init(void);
 101 extern const uschar *acl_verify_arc(void);
 102 extern uschar * fn_arc_domains(void);
 103 #endif
 104
 105 extern void    assert_no_variables(void *, int, const char *, int);
 106 extern int     auth_call_pam(const uschar *, uschar **);
 107 extern int     auth_call_pwcheck(uschar *, uschar **);
 108 extern int     auth_call_radius(const uschar *, uschar **);
 109 extern int     auth_call_saslauthd(const uschar *, const uschar *,
 110                  const uschar *, const uschar *, uschar **);
 111 extern int     auth_check_serv_cond(auth_instance *);
 112 extern int     auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
 113 extern int     auth_client_item(void *, auth_instance *, const uschar **,
 114                  unsigned, int, uschar *, int);
 115
 116
 117 extern int     auth_get_data(uschar **, const uschar *, int);
 118 extern int     auth_get_no64_data(uschar **, uschar *);
 119 extern int     auth_prompt(const uschar *);
 120 extern int     auth_read_input(const uschar *);
 121 extern void    auth_show_supported(FILE *);
 122 extern uschar *auth_xtextencode(uschar *, int);
 123 extern int     auth_xtextdecode(uschar *, uschar **);
 124
 125 #ifdef EXPERIMENTAL_ARC
 126 extern gstring *authres_arc(gstring *);
 127 #endif
 128 #ifndef DISABLE_DKIM
 129 extern gstring *authres_dkim(gstring *);
 130 #endif
 131 #ifdef SUPPORT_DMARC
 132 extern gstring *authres_dmarc(gstring *);
 133 #endif
 134 extern gstring *authres_smtpauth(gstring *);
 135 #ifdef SUPPORT_SPF
 136 extern gstring *authres_spf(gstring *);
 137 #endif
 138
 139 extern uschar *b64encode(const uschar *, int);
 140 extern uschar *b64encode_taint(const uschar *, int, BOOL);
 141 extern int     b64decode(const uschar *, uschar **);
 142 extern int     bdat_getc(unsigned);
 143 extern uschar *bdat_getbuf(unsigned *);
 144 extern int     bdat_ungetc(int);
 145 extern void    bdat_flush_data(void);
 146
 147 extern void    bits_clear(unsigned int *, size_t, int *);
 148 extern void    bits_set(unsigned int *, size_t, int *);
 149
 150 extern void    cancel_cutthrough_connection(BOOL, const uschar *);
 151 extern int     check_host(void *, const uschar *, const uschar **, uschar **);
 152 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
 153 extern pid_t   child_open_uid(const uschar **, const uschar **, int,
 154                  uid_t *, gid_t *, int *, int *, uschar *, BOOL);
 155 extern BOOL    cleanup_environment(void);
 156 extern void    cutthrough_data_puts(uschar *, int);
 157 extern void    cutthrough_data_put_nl(void);
 158 extern uschar *cutthrough_finaldot(void);
 159 extern BOOL    cutthrough_flush_send(void);
 160 extern BOOL    cutthrough_headers_send(void);
 161 extern BOOL    cutthrough_predata(void);
 162 extern void    release_cutthrough_connection(const uschar *);
 163
 164 extern void    daemon_go(void);
 165
 166 #ifdef EXPERIMENTAL_DCC
 167 extern int     dcc_process(uschar **);
 168 #endif
 169
 170 extern void    debug_logging_activate(uschar *, uschar *);
 171 extern void    debug_logging_stop(void);
 172 extern void    debug_print_argv(const uschar **);
 173 extern void    debug_print_ids(uschar *);
 174 extern void    debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
 175 extern void    debug_print_string(uschar *);
 176 extern void    debug_print_tree(tree_node *);
 177 extern void    debug_vprintf(int, const char *, va_list);
 178 extern void    decode_bits(unsigned int *, size_t, int *,
 179                    uschar *, bit_table *, int, uschar *, int);
 180 extern void    delete_pid_file(void);
 181 extern address_item *deliver_make_addr(uschar *, BOOL);
 182 extern void    delivery_log(int, address_item *, int, uschar *);
 183 extern int     deliver_message(uschar *, BOOL, BOOL);
 184 extern void    deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
 185 extern void    deliver_set_expansions(address_item *);
 186 extern int     deliver_split_address(address_item *);
 187 extern void    deliver_succeeded(address_item *);
 188
 189 extern uschar *deliver_get_sender_address (uschar *id);
 190 extern void    delivery_re_exec(int);
 191
 192 extern void    die_tainted(const uschar *, const uschar *, int);
 193 extern BOOL    directory_make(const uschar *, const uschar *, int, BOOL);
 194 #ifndef DISABLE_DKIM
 195 extern uschar *dkim_exim_query_dns_txt(const uschar *);
 196 extern void    dkim_exim_sign_init(void);
 197
 198 extern BOOL    dkim_transport_write_message(transport_ctx *,
 199                   struct ob_dkim *, const uschar ** errstr);
 200 #endif
 201 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
 202 extern int     dns_basic_lookup(dns_answer *, const uschar *, int);
 203 extern uschar *dns_build_reverse(const uschar *);
 204 extern time_t  dns_expire_from_soa(dns_answer *, int);
 205 extern void    dns_init(BOOL, BOOL, BOOL);
 206 extern BOOL    dns_is_aa(const dns_answer *);
 207 extern BOOL    dns_is_secure(const dns_answer *);
 208 extern int     dns_lookup(dns_answer *, const uschar *, int, const uschar **);
 209 extern void    dns_pattern_init(void);
 210 extern int     dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
 211 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
 212 extern uschar *dns_text_type(int);
 213 extern void    dscp_list_to_stream(FILE *);
 214 extern BOOL    dscp_lookup(const uschar *, int, int *, int *, int *);
 215
 216 extern void    enq_end(uschar *);
 217 extern BOOL    enq_start(uschar *, unsigned);
 218 #ifndef DISABLE_EVENT
 219 extern uschar *event_raise(uschar *, const uschar *, uschar *);
 220 extern void    msg_event_raise(const uschar *, const address_item *);
 221 #endif
 222
 223 extern int     exim_chown_failure(int, const uschar*, uid_t, gid_t);
 224 extern const uschar * exim_errstr(int);
 225 extern void    exim_exit(int, const uschar *) NORETURN;
 226 extern void    exim_nullstd(void);
 227 extern void    exim_setugid(uid_t, gid_t, BOOL, uschar *);
 228 extern void    exim_underbar_exit(int);
 229 extern void    exim_wait_tick(struct timeval *, int);
 230 extern int     exp_bool(address_item *addr,
 231   uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
 232   uschar *svalue, BOOL *rvalue);
 233 extern BOOL    expand_check_condition(uschar *, uschar *, uschar *);
 234 extern uschar *expand_file_big_buffer(const uschar *);
 235 extern uschar *expand_string(uschar *); /* public, cannot make const */
 236 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
 237 extern uschar *expand_hide_passwords(uschar * );
 238 extern uschar *expand_string_copy(const uschar *);
 239 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
 240 extern void    modify_variable(uschar *, void *);
 241
 242 extern BOOL    fd_ready(int, time_t);
 243
 244 extern int     filter_interpret(uschar *, int, address_item **, uschar **);
 245 extern BOOL    filter_personal(string_item *, BOOL);
 246 extern BOOL    filter_runtest(int, uschar *, BOOL, BOOL);
 247 extern BOOL    filter_system_interpret(address_item **, uschar **);
 248
 249 extern uschar * fn_hdrs_added(void);
 250
 251 extern void    header_add(int, const char *, ...);
 252 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
 253 extern int     header_checkname(header_line *, BOOL);
 254 extern BOOL    header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
 255 extern int     host_address_extract_port(uschar *);
 256 extern uschar *host_and_ident(BOOL);
 257 extern int     host_aton(const uschar *, int *);
 258 extern void    host_build_hostlist(host_item **, const uschar *, BOOL);
 259 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
 260 extern void    host_build_log_info(void);
 261 extern void    host_build_sender_fullhost(void);
 262 extern int     host_find_byname(host_item *, const uschar *, int,
 263                                 const uschar **, BOOL);
 264 extern int     host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
 265                  uschar *, const dnssec_domains *, const uschar **, BOOL *);
 266 extern ip_address_item *host_find_interfaces(void);
 267 extern BOOL    host_is_in_net(const uschar *, const uschar *, int);
 268 extern BOOL    host_is_tls_on_connect_port(int);
 269 extern int     host_item_get_port(host_item *);
 270 extern void    host_mask(int, int *, int);
 271 extern int     host_name_lookup(void);
 272 extern int     host_nmtoa(int, int *, int, uschar *, int);
 273 extern uschar *host_ntoa(int, const void *, uschar *, int *);
 274 extern int     host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
 275
 276 extern uschar *imap_utf7_encode(uschar *, const uschar *,
 277                                  uschar, uschar *, uschar **);
 278
 279 extern void    invert_address(uschar *, uschar *);
 280 extern int     ip_addr(void *, int, const uschar *, int);
 281 extern int     ip_bind(int, int, uschar *, int);
 282 extern int     ip_connect(int, int, const uschar *, int, int, const blob *);
 283 extern int     ip_connectedsocket(int, const uschar *, int, int,
 284                  int, host_item *, uschar **, const blob *);
 285 extern int     ip_get_address_family(int);
 286 extern void    ip_keepalive(int, const uschar *, BOOL);
 287 extern int     ip_recv(client_conn_ctx *, uschar *, int, time_t);
 288 extern int     ip_socket(int, int);
 289
 290 extern int     ip_tcpsocket(const uschar *, uschar **, int, host_item *);
 291 extern int     ip_unixsocket(const uschar *, uschar **);
 292 extern int     ip_streamsocket(const uschar *, uschar **, int, host_item *);
 293
 294 extern int     ipv6_nmtoa(int *, uschar *);
 295
 296 extern uschar *local_part_quote(uschar *);
 297 extern int     log_create(uschar *);
 298 extern int     log_create_as_exim(uschar *);
 299 extern void    log_close_all(void);
 300
 301 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
 302 extern BOOL    macro_read_assignment(uschar *);
 303 extern uschar *macros_expand(int, int *, BOOL *);
 304 extern void    mainlog_close(void);
 305 #ifdef WITH_CONTENT_SCAN
 306 extern int     malware(const uschar *, int);
 307 extern int     malware_in_file(uschar *);
 308 extern void    malware_init(void);
 309 extern void    malware_show_supported(FILE *);
 310 #endif
 311 extern int     match_address_list(const uschar *, BOOL, BOOL, const uschar **,
 312                  unsigned int *, int, int, const uschar **);
 313 extern int     match_address_list_basic(const uschar *, const uschar **, int);
 314 extern int     match_check_list(const uschar **, int, tree_node **, unsigned int **,
 315                  int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
 316                  const uschar *, const uschar **);
 317 extern int     match_isinlist(const uschar *, const uschar **, int, tree_node **,
 318                  unsigned int *, int, BOOL, const uschar **);
 319 extern int     match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
 320                  const uschar **);
 321 extern void    md5_end(md5 *, const uschar *, int, uschar *);
 322 extern void    md5_mid(md5 *, const uschar *);
 323 extern void    md5_start(md5 *);
 324 extern void    millisleep(int);
 325 #ifdef WITH_CONTENT_SCAN
 326 struct mime_boundary_context;
 327 extern int     mime_acl_check(uschar *acl, FILE *f,
 328                  struct mime_boundary_context *, uschar **, uschar **);
 329 extern int     mime_decode(const uschar **);
 330 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
 331 extern int     mime_regex(const uschar **);
 332 extern void    mime_set_anomaly(int);
 333 #endif
 334 extern uschar *moan_check_errorcopy(uschar *);
 335 extern BOOL    moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
 336                  BOOL, uschar *);
 337 extern void    moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
 338 extern BOOL    moan_send_message(uschar *, int, error_block *eblock,
 339                  header_line *, FILE *, uschar *);
 340 extern void    moan_tell_someone(uschar *, address_item *,
 341                  const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
 342 extern BOOL    moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
 343 extern void    moan_write_from(FILE *);
 344 extern void    moan_write_references(FILE *, uschar *);
 345 extern FILE   *modefopen(const uschar *, const char *, mode_t);
 346
 347 extern int     open_cutthrough_connection( address_item * addr );
 348
 349 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
 350                  BOOL);
 351 extern int     parse_forward_list(uschar *, int, address_item **, uschar **,
 352                  const uschar *, uschar *, error_block **);
 353 extern uschar *parse_find_address_end(uschar *, BOOL);
 354 extern uschar *parse_find_at(uschar *);
 355 extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
 356 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
 357 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
 358 extern uschar *parse_date_time(uschar *str, time_t *t);
 359 extern int     vaguely_random_number(int);
 360 #ifndef DISABLE_TLS
 361 extern int     vaguely_random_number_fallback(int);
 362 #endif
 363
 364 extern BOOL    queue_action(uschar *, int, uschar **, int, int);
 365 extern void    queue_check_only(void);
 366 extern unsigned queue_count(void);
 367 extern unsigned queue_count_cached(void);
 368 extern void    queue_list(int, uschar **, int);
 369 #ifdef EXPERIMENTAL_QUEUE_RAMP
 370 extern void    queue_notify_daemon(const uschar * hostname);
 371 #endif
 372 extern void    queue_run(uschar *, uschar *, BOOL);
 373
 374 extern int     random_number(int);
 375 extern const uschar *rc_to_string(int);
 376 extern int     rda_interpret(redirect_block *, int, uschar *, uschar *,
 377                  uschar *, uschar *, uschar *, ugid_block *, address_item **,
 378                  uschar **, error_block **, int *, uschar *);
 379 extern int     rda_is_filter(const uschar *);
 380 extern BOOL    readconf_depends(driver_instance *, uschar *);
 381 extern void    readconf_driver_init(uschar *, driver_instance **,
 382                  driver_info *, int, void *, int, optionlist *, int);
 383 extern uschar *readconf_find_option(void *);
 384 extern void    readconf_main(BOOL);
 385 extern void    readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
 386 extern BOOL    readconf_print(uschar *, uschar *, BOOL);
 387 extern uschar *readconf_printtime(int);
 388 extern uschar *readconf_readname(uschar *, int, uschar *);
 389 extern int     readconf_readtime(const uschar *, int, BOOL);
 390 extern void    readconf_rest(void);
 391 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
 392 extern void    readconf_save_config(const uschar *);
 393 extern void    read_message_body(BOOL);
 394 extern void    receive_bomb_out(uschar *, uschar *) NORETURN;
 395 extern BOOL    receive_check_fs(int);
 396 extern BOOL    receive_check_set_sender(uschar *);
 397 extern BOOL    receive_msg(BOOL);
 398 extern int_eximarith_t receive_statvfs(BOOL, int *);
 399 extern void    receive_swallow_smtp(void);
 400 #ifdef WITH_CONTENT_SCAN
 401 extern int     regex(const uschar **);
 402 #endif
 403 extern BOOL    regex_match_and_setup(const pcre *, const uschar *, int, int);
 404 extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
 405 extern void    retry_add_item(address_item *, uschar *, int);
 406 extern BOOL    retry_check_address(const uschar *, host_item *, uschar *, BOOL,
 407                  uschar **, uschar **);
 408 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
 409 extern BOOL    retry_ultimate_address_timeout(uschar *, const uschar *,
 410                  dbdata_retry *, time_t);
 411 extern void    retry_update(address_item **, address_item **, address_item **);
 412 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
 413 extern uschar *rewrite_address_qualify(uschar *, BOOL);
 414 extern header_line *rewrite_header(header_line *,
 415                const uschar *, const uschar *,
 416                rewrite_rule *, int, BOOL);
 417 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
 418                  rewrite_rule *);
 419 extern void    rewrite_test(uschar *);
 420 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
 421                  uschar **);
 422 extern int     route_address(address_item *, address_item **, address_item **,
 423                  address_item **, address_item **, int);
 424 extern int     route_check_prefix(const uschar *, const uschar *);
 425 extern int     route_check_suffix(const uschar *, const uschar *);
 426 extern BOOL    route_findgroup(uschar *, gid_t *);
 427 extern BOOL    route_finduser(const uschar *, struct passwd **, uid_t *);
 428 extern BOOL    route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
 429                  uschar **);
 430 extern BOOL    route_find_expanded_user(uschar *, uschar *, uschar *,
 431                  struct passwd **, uid_t *, uschar **);
 432 extern void    route_init(void);
 433 extern void    route_show_supported(FILE *);
 434 extern void    route_tidyup(void);
 435
 436 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
 437                  int, int *);
 438 extern int     search_findtype(const uschar *, int);
 439 extern int     search_findtype_partial(const uschar *, int *, const uschar **, int *,
 440                  int *);
 441 extern void   *search_open(uschar *, int, int, uid_t *, gid_t *);
 442 extern void    search_tidyup(void);
 443 extern void    set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
 444 extern void    sha1_end(hctx *, const uschar *, int, uschar *);
 445 extern void    sha1_mid(hctx *, const uschar *);
 446 extern void    sha1_start(hctx *);
 447 extern int     sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
 448                  uschar *, address_item **, uschar **);
 449 extern void    sigalrm_handler(int);
 450 extern BOOL    smtp_buffered(void);
 451 extern void    smtp_closedown(uschar *);
 452 extern void    smtp_command_timeout_exit(void) NORETURN;
 453 extern void    smtp_command_sigterm_exit(void) NORETURN;
 454 extern void    smtp_data_timeout_exit(void) NORETURN;
 455 extern void    smtp_data_sigint_exit(void) NORETURN;
 456 extern void    smtp_deliver_init(void);
 457 extern uschar *smtp_cmd_hist(void);
 458 extern int     smtp_connect(smtp_connect_args *, const blob *);
 459 extern int     smtp_sock_connect(host_item *, int, int, uschar *,
 460                  transport_instance * tb, int, const blob *);
 461 extern int     smtp_feof(void);
 462 extern int     smtp_ferror(void);
 463 extern uschar *smtp_get_connection_info(void);
 464 extern BOOL    smtp_get_interface(uschar *, int, address_item *,
 465                  uschar **, uschar *);
 466 extern BOOL    smtp_get_port(uschar *, address_item *, int *, uschar *);
 467 extern int     smtp_getc(unsigned);
 468 extern uschar *smtp_getbuf(unsigned *);
 469 extern void    smtp_get_cache(void);
 470 extern int     smtp_handle_acl_fail(int, int, uschar *, uschar *);
 471 extern void    smtp_log_no_mail(void);
 472 extern void    smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
 473 extern void    smtp_proxy_tls(void *, uschar *, size_t, int *, int) NORETURN;
 474 extern BOOL    smtp_read_response(void *, uschar *, int, int, int);
 475 extern void   *smtp_reset(void *);
 476 extern void    smtp_respond(uschar *, int, BOOL, uschar *);
 477 extern void    smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
 478 extern void    smtp_port_for_connect(host_item *, int);
 479 extern void    smtp_send_prohibition_message(int, uschar *);
 480 extern int     smtp_setup_msg(void);
 481 extern BOOL    smtp_start_session(void);
 482 extern int     smtp_ungetc(int);
 483 extern BOOL    smtp_verify_helo(void);
 484 extern int     smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
 485 #ifdef WITH_CONTENT_SCAN
 486 extern int     spam(const uschar **);
 487 extern FILE   *spool_mbox(unsigned long *, const uschar *, uschar **);
 488 #endif
 489 extern void    spool_clear_header_globals(void);
 490 extern BOOL    spool_move_message(uschar *, uschar *, uschar *, uschar *);
 491 extern int     spool_open_datafile(uschar *);
 492 extern int     spool_open_temp(uschar *);
 493 extern int     spool_read_header(uschar *, BOOL, BOOL);
 494 extern int     spool_write_header(uschar *, int, uschar **);
 495 extern int     stdin_getc(unsigned);
 496 extern int     stdin_feof(void);
 497 extern int     stdin_ferror(void);
 498 extern int     stdin_ungetc(int);
 499
 500 extern void    store_exit(void);
 501 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
 502 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
 503 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
 504 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
 505 extern uschar *string_base62(unsigned long int);
 506 extern gstring *string_cat (gstring *, const uschar *     ) WARN_UNUSED_RESULT;
 507 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
 508 extern int     string_compare_by_pointer(const void *, const void *);
 509 extern uschar *string_copy_dnsdomain(uschar *);
 510 extern uschar *string_copy_malloc(const uschar *);
 511 extern uschar *string_dequote(const uschar **);
 512 extern uschar *string_format_size(int, uschar *);
 513 extern int     string_interpret_escape(const uschar **);
 514 extern int     string_is_ip_address(const uschar *, int *);
 515 #ifdef SUPPORT_I18N
 516 extern BOOL    string_is_utf8(const uschar *);
 517 #endif
 518 extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
 519 extern const uschar *string_printing2(const uschar *, BOOL);
 520 extern uschar *string_split_message(uschar *);
 521 extern uschar *string_unprinting(uschar *);
 522 #ifdef SUPPORT_I18N
 523 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
 524 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
 525 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
 526 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
 527 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
 528 #endif
 529
 530 #define string_format(buf, siz, fmt, ...) \
 531         string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
 532 extern BOOL    string_format_trc(uschar *, int, const uschar *, unsigned,
 533                         const char *, ...) ALMOST_PRINTF(5,6);
 534
 535 #define string_vformat(g, flgs, fmt, ap) \
 536         string_vformat_trc(g, US __FUNCTION__, __LINE__, \
 537                          STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
 538 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
 539                         unsigned, unsigned, const char *, va_list);
 540
 541 #define string_open_failed(eno, fmt, ...) \
 542         string_open_failed_trc(eno, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
 543 extern uschar *string_open_failed_trc(int, const uschar *, unsigned,
 544                         const char *, ...) PRINTF_FUNCTION(4,5);
 545
 546 extern int     strcmpic(const uschar *, const uschar *);
 547 extern int     strncmpic(const uschar *, const uschar *, int);
 548 extern uschar *strstric(uschar *, uschar *, BOOL);
 549
 550 extern int     test_harness_fudged_queue_time(int);
 551 extern void    tcp_init(void);
 552 #ifdef EXIM_TFO_PROBE
 553 extern void    tfo_probe(void);
 554 #endif
 555 extern void    tls_modify_variables(tls_support *);
 556 extern uschar *tod_stamp(int);
 557
 558 extern BOOL    transport_check_waiting(const uschar *, const uschar *, int, uschar *,
 559                  BOOL *, oicf, void*);
 560 extern void    transport_init(void);
 561 extern void    transport_do_pass_socket(const uschar *, const uschar *,
 562                  const uschar *, uschar *, int);
 563 extern BOOL    transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
 564                  int);
 565 extern uschar *transport_rcpt_address(address_item *, BOOL);
 566 extern BOOL    transport_set_up_command(const uschar ***, uschar *,
 567                  BOOL, int, address_item *, uschar *, uschar **);
 568 extern void    transport_update_waiting(host_item *, uschar *);
 569 extern BOOL    transport_write_block(transport_ctx *, uschar *, int, BOOL);
 570 extern void    transport_write_reset(int);
 571 extern BOOL    transport_write_string(int, const char *, ...);
 572 extern BOOL    transport_headers_send(transport_ctx *,
 573                  BOOL (*)(transport_ctx *, uschar *, int));
 574 extern void    transport_show_supported(FILE *);
 575 extern BOOL    transport_write_message(transport_ctx *, int);
 576 extern void    tree_add_duplicate(uschar *, address_item *);
 577 extern void    tree_add_nonrecipient(uschar *);
 578 extern void    tree_add_unusable(host_item *);
 579 extern void    tree_dup(tree_node **, tree_node *);
 580 extern int     tree_insertnode(tree_node **, tree_node *);
 581 extern tree_node *tree_search(tree_node *, const uschar *);
 582 extern void    tree_write(tree_node *, FILE *);
 583 extern void    tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
 584
 585 #ifdef WITH_CONTENT_SCAN
 586 extern void    unspool_mbox(void);
 587 #endif
 588 #ifdef SUPPORT_I18N
 589 extern void    utf8_version_report(FILE *);
 590 #endif
 591
 592 extern int     verify_address(address_item *, FILE *, int, int, int, int,
 593                  uschar *, uschar *, BOOL *);
 594 extern int     verify_check_dnsbl(int, const uschar **, uschar **);
 595 extern int     verify_check_header_address(uschar **, uschar **, int, int, int,
 596                  uschar *, uschar *, int, int *);
 597 extern int     verify_check_headers(uschar **);
 598 extern int     verify_check_header_names_ascii(uschar **);
 599 extern int     verify_check_host(uschar **);
 600 extern int     verify_check_notblind(BOOL);
 601 extern int     verify_check_given_host(const uschar **, const host_item *);
 602 extern int     verify_check_this_host(const uschar **, unsigned int *,
 603                  const uschar*, const uschar *, const uschar **);
 604 extern address_item *verify_checked_sender(uschar *);
 605 extern void    verify_get_ident(int);
 606 extern BOOL    verify_sender(int *, uschar **);
 607 extern BOOL    verify_sender_preliminary(int *, uschar **);
 608 extern void    version_init(void);
 609
 610 extern BOOL    write_chunk(transport_ctx *, uschar *, int);
 611 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
 612
 613
 614 /******************************************************************************/
 615 /* Predicate: if an address is in a tainted pool.
 616 By extension, a variable pointing to this address is tainted.
 617 */
 618
 619 static inline BOOL
 620 is_tainted(const void * p)
 621 {
 622 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
 623 return FALSE;
 624
 625 #else
 626 extern BOOL is_tainted_fn(const void *);
 627 return is_tainted_fn(p);
 628 #endif
 629 }
 630
 631 /******************************************************************************/
 632 /* String functions */
 633 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
 634 {
 635 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
 636 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
 637 #endif
 638 return US strcat(CS dst, CCS src);
 639 }
 640 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
 641 {
 642 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
 643 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
 644 #endif
 645 return US strcpy(CS dst, CCS src);
 646 }
 647 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
 648 {
 649 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
 650 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
 651 #endif
 652 return US strncat(CS dst, CCS src, n);
 653 }
 654 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
 655 {
 656 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
 657 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
 658 #endif
 659 return US strncpy(CS dst, CCS src, n);
 660 }
 661 /*XXX will likely need unchecked copy also */
 662
 663
 664 /******************************************************************************/
 665
 666 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
 667 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
 668 chown(<exim-uid>, <exim-gid>).
 669
 670 Probably because the idmapping is broken, misconfigured or set up in
 671 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
 672 case of misconfiguration, or if there are more such broken systems
 673 out, I try to impose as least impact as possible and for now just write
 674 a panic log entry pointing to the bug report. You're encouraged to
 675 contact the developers, if you experience this issue.
 676
 677 fd     the file descriptor (or -1 if not valid)
 678 name   the file name for error messages or for file operations,
 679   if fd is < 0
 680 owner  the owner
 681 group  the group
 682
 683 returns 0 on success, -1 on failure */
 684
 685 static inline int
 686 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
 687 {
 688 return fchown(fd, owner, group)
 689   ? exim_chown_failure(fd, name, owner, group) : 0;
 690 }
 691
 692 static inline int
 693 exim_chown(const uschar *name, uid_t owner, gid_t group)
 694 {
 695 return chown(CCS name, owner, group)
 696   ? exim_chown_failure(-1, name, owner, group) : 0;
 697 }
 698 #endif  /* !MACRO_PREDEF && !COMPILE_UTILITY */
 699
 700 /******************************************************************************/
 701 /* String functions */
 702
 703 #if !defined(MACRO_PREDEF)
 704 /*************************************************
 705 *            Copy and save string                *
 706 *************************************************/
 707
 708 /* This function assumes that memcpy() is faster than strcpy().
 709 */
 710
 711 static inline uschar *
 712 string_copy_taint_trc(const uschar *s, BOOL tainted, const char * func, int line)
 713 {
 714 int len = Ustrlen(s) + 1;
 715 uschar *ss = store_get_3(len, tainted, func, line);
 716 memcpy(ss, s, len);
 717 return ss;
 718 }
 719
 720 #define string_copy_taint(s, tainted) \
 721         string_copy_taint_trc((s), tainted, __FUNCTION__, __LINE__)
 722
 723 static inline uschar *
 724 string_copy_trc(const uschar * s, const char * func, int line)
 725 {
 726 return string_copy_taint_trc((s), is_tainted(s), func, line);
 727 }
 728
 729 #define string_copy(s) \
 730         string_copy_trc((s), __FUNCTION__, __LINE__)
 731
 732
 733 /*************************************************
 734 *       Copy, lowercase and save string          *
 735 *************************************************/
 736
 737 /*
 738 Argument: string to copy
 739 Returns:  copy of string in new store, with letters lowercased
 740 */
 741
 742 static inline uschar *
 743 string_copylc(const uschar *s)
 744 {
 745 uschar *ss = store_get(Ustrlen(s) + 1, is_tainted(s));
 746 uschar *p = ss;
 747 while (*s != 0) *p++ = tolower(*s++);
 748 *p = 0;
 749 return ss;
 750 }
 751
 752
 753
 754 /*************************************************
 755 *       Copy and save string, given length       *
 756 *************************************************/
 757
 758 /* It is assumed the data contains no zeros. A zero is added
 759 onto the end.
 760
 761 Arguments:
 762   s         string to copy
 763   n         number of characters
 764
 765 Returns:    copy of string in new store
 766
 767 This is an API for local_scan hence not static.
 768 */
 769
 770 static inline uschar *
 771 string_copyn(const uschar *s, int n)
 772 {
 773 uschar *ss = store_get(n + 1, is_tainted(s));
 774 Ustrncpy(ss, s, n);
 775 ss[n] = 0;
 776 return ss;
 777 }
 778
 779 /*************************************************
 780 * Copy, lowercase, and save string, given length *
 781 *************************************************/
 782
 783 /* It is assumed the data contains no zeros. A zero is added
 784 onto the end.
 785
 786 Arguments:
 787   s         string to copy
 788   n         number of characters
 789
 790 Returns:    copy of string in new store, with letters lowercased
 791 */
 792
 793 static inline uschar *
 794 string_copynlc(uschar *s, int n)
 795 {
 796 uschar *ss = store_get(n + 1, is_tainted(s));
 797 uschar *p = ss;
 798 while (n-- > 0) *p++ = tolower(*s++);
 799 *p = 0;
 800 return ss;
 801 }
 802
 803
 804 # ifndef COMPILE_UTILITY
 805 /*************************************************
 806 *     Copy and save string in longterm store     *
 807 *************************************************/
 808
 809 /* This function assumes that memcpy() is faster than strcpy().
 810
 811 Argument: string to copy
 812 Returns:  copy of string in new store
 813 */
 814
 815 static inline uschar *
 816 string_copy_perm(const uschar *s, BOOL force_taint)
 817 {
 818 int old_pool = store_pool;
 819 int len = Ustrlen(s) + 1;
 820 uschar *ss;
 821
 822 store_pool = POOL_PERM;
 823 ss = store_get(len, force_taint || is_tainted(s));
 824 memcpy(ss, s, len);
 825 store_pool = old_pool;
 826 return ss;
 827 }
 828 # endif
 829
 830
 831
 832 /* sprintf into a buffer, taint-unchecked */
 833
 834 static inline void
 835 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
 836 {
 837 gstring gs = { .size = siz, .ptr = 0, .s = buf };
 838 va_list ap;
 839 va_start(ap, fmt);
 840 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
 841 va_end(ap);
 842 }
 843
 844
 845
 846 /******************************************************************************/
 847 /* Growable-string functions */
 848
 849 /* Create a growable-string with some preassigned space */
 850
 851 #define string_get_tainted(size, tainted) \
 852         string_get_tainted_trc((size), (tainted), __FUNCTION__, __LINE__)
 853
 854 static inline gstring *
 855 string_get_tainted_trc(unsigned size, BOOL tainted, const char * func, unsigned line)
 856 {
 857 gstring * g = store_get_3(sizeof(gstring) + size, tainted, func, line);
 858 g->size = size;
 859 g->ptr = 0;
 860 g->s = US(g + 1);
 861 return g;
 862 }
 863
 864 #define string_get(size) \
 865         string_get_trc((size), __FUNCTION__, __LINE__)
 866
 867 static inline gstring *
 868 string_get_trc(unsigned size, const char * func, unsigned line)
 869 {
 870 return string_get_tainted_trc(size, FALSE, func, line);
 871 }
 872
 873 /* NUL-terminate the C string in the growable-string, and return it. */
 874
 875 static inline uschar *
 876 string_from_gstring(gstring * g)
 877 {
 878 if (!g) return NULL;
 879 g->s[g->ptr] = '\0';
 880 return g->s;
 881 }
 882
 883 static inline unsigned
 884 gstring_length(const gstring * g)
 885 {
 886 return g ? (unsigned)g->ptr : 0;
 887 }
 888
 889
 890 #define gstring_release_unused(g) \
 891         gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
 892
 893 static inline void
 894 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
 895 {
 896 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
 897 }
 898
 899
 900 /* sprintf-append to a growable-string */
 901
 902 #define string_fmt_append(g, fmt, ...) \
 903         string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
 904         SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
 905
 906 #define string_fmt_append_f(g, flgs, fmt, ...) \
 907         string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
 908         flgs,         fmt, __VA_ARGS__)
 909
 910 static inline gstring *
 911 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
 912   unsigned flags, const char *format, ...)
 913 {
 914 va_list ap;
 915 va_start(ap, format);
 916 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
 917                         flags, format, ap);
 918 va_end(ap);
 919 return g;
 920 }
 921
 922 /******************************************************************************/
 923
 924 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
 925
 926 static inline dns_answer *
 927 store_get_dns_answer_trc(const uschar * func, unsigned line)
 928 {
 929 return store_get_3(sizeof(dns_answer), TRUE, CCS func, line);  /* use tainted mem */
 930 }
 931
 932 /******************************************************************************/
 933 /* Routines with knowledge of spool layout */
 934
 935 # ifndef COMPILE_UTILITY
 936 static inline void
 937 spool_pname_buf(uschar * buf, int len)
 938 {
 939 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
 940 }
 941
 942 static inline uschar *
 943 spool_dname(const uschar * purpose, uschar * subdir)
 944 {
 945 return string_sprintf("%s/%s/%s/%s",
 946         spool_directory, queue_name, purpose, subdir);
 947 }
 948 # endif
 949
 950 static inline uschar *
 951 spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
 952 {
 953 return string_sprintf("%s%s%s%s%s",
 954                     q, *q ? "/" : "",
 955                     purpose,
 956                     *subdir ? "/" : "", subdir);
 957 }
 958
 959 static inline uschar *
 960 spool_sname(const uschar * purpose, uschar * subdir)
 961 {
 962 return spool_q_sname(purpose, queue_name, subdir);
 963 }
 964
 965 static inline uschar *
 966 spool_q_fname(const uschar * purpose, const uschar * q,
 967         const uschar * subdir, const uschar * fname, const uschar * suffix)
 968 {
 969 return string_sprintf("%s/%s/%s/%s/%s%s",
 970         spool_directory, q, purpose, subdir, fname, suffix);
 971 }
 972
 973 static inline uschar *
 974 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
 975         const uschar * suffix)
 976 {
 977 #ifdef COMPILE_UTILITY          /* version avoiding string-extension */
 978 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
 979         + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
 980 uschar * buf = store_get(len, FALSE);
 981 string_format(buf, len, "%s/%s/%s/%s/%s%s",
 982         spool_directory, queue_name, purpose, subdir, fname, suffix);
 983 return buf;
 984 #else
 985 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
 986 #endif
 987 }
 988
 989 static inline void
 990 set_subdir_str(uschar * subdir_str, const uschar * name,
 991         int search_sequence)
 992 {
 993 subdir_str[0] = split_spool_directory == (search_sequence == 0)
 994        ? name[5] : '\0';
 995 subdir_str[1] = '\0';
 996 }
 997
 998 /******************************************************************************/
 999 /* Time calculations */
1000
1001 static inline void
1002 timesince(struct timeval * diff, const struct timeval * then)
1003 {
1004 gettimeofday(diff, NULL);
1005 diff->tv_sec -= then->tv_sec;
1006 if ((diff->tv_usec -= then->tv_usec) < 0)
1007   {
1008   diff->tv_sec--;
1009   diff->tv_usec += 1000*1000;
1010   }
1011 }
1012
1013 static inline uschar *
1014 string_timediff(const struct timeval * diff)
1015 {
1016 static uschar buf[sizeof("0.000s")];
1017
1018 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1019   return readconf_printtime((int)diff->tv_sec);
1020
1021 snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1022 return buf;
1023 }
1024
1025
1026 static inline uschar *
1027 string_timesince(const struct timeval * then)
1028 {
1029 struct timeval diff;
1030 timesince(&diff, then);
1031 return string_timediff(&diff);
1032 }
1033
1034 static inline void
1035 report_time_since(const struct timeval * t0, const uschar * where)
1036 {
1037 # ifdef MEASURE_TIMING
1038 struct timeval diff;
1039 timesince(&diff, t0);
1040 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1041        (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1042 # endif
1043 }
1044
1045
1046 static inline void
1047 testharness_pause_ms(int millisec)
1048 {
1049 #ifndef MEASURE_TIMING
1050 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1051 #endif
1052 }
1053
1054 /******************************************************************************/
1055 /* Taint-checked file opens */
1056
1057 static inline int
1058 exim_open2(const char *pathname, int flags)
1059 {
1060 if (!is_tainted(pathname)) return open(pathname, flags);
1061 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
1062 errno = EACCES;
1063 return -1;
1064 }
1065 static inline int
1066 exim_open(const char *pathname, int flags, mode_t mode)
1067 {
1068 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1069 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
1070 errno = EACCES;
1071 return -1;
1072 }
1073 static inline int
1074 exim_openat(int dirfd, const char *pathname, int flags)
1075 {
1076 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1077 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
1078 errno = EACCES;
1079 return -1;
1080 }
1081 static inline int
1082 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1083 {
1084 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1085 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
1086 errno = EACCES;
1087 return -1;
1088 }
1089
1090 static inline FILE *
1091 exim_fopen(const char *pathname, const char *mode)
1092 {
1093 if (!is_tainted(pathname)) return fopen(pathname, mode);
1094 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
1095 errno = EACCES;
1096 return NULL;
1097 }
1098
1099 #endif  /* !MACRO_PREDEF */
1100
1101 #endif  /* _FUNCTIONS_H_ */
1102
1103 /* vi: aw
1104 */
1105 /* End of functions.h */