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[exim.git] / src / src / functions.h
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059ec3d9
PH		 1/*************************************************
2* Exim - an Internet mail transport agent *
3*************************************************/
4
5a66c31b 5/* Copyright (c) University of Cambridge 1995 - 2014 */
059ec3d9
PH		 6/* See the file NOTICE for conditions of use and distribution. */
7
8
9/* Prototypes for functions that appear in various modules. Gathered together
10to avoid having a lot of tiddly little headers with only a couple of lines in
11them. However, some functions that are used (or not used) by utility programs
12are in in fact in separate headers. */
13
14
15#ifdef EXIM_PERL
16extern uschar *call_perl_cat(uschar *, int *, int *, uschar **, uschar *,
17 uschar **);
18extern void cleanup_perl(void);
19extern uschar *init_perl(uschar *);
20#endif
21
22
23#ifdef SUPPORT_TLS
a799883d
PP		 24extern const char *
25 std_dh_prime_default(void);
26extern const char *
27 std_dh_prime_named(const uschar *);
9d1c15ef 28
9e4dddbd 29extern uschar * tls_cert_crl_uri(void *, uschar * mod);
9d1c15ef 30extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
9e4dddbd
JH		 31extern uschar * tls_cert_issuer(void *, uschar * mod);
32extern uschar * tls_cert_not_before(void *, uschar * mod);
33extern uschar * tls_cert_not_after(void *, uschar * mod);
34extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
35extern uschar * tls_cert_serial_number(void *, uschar * mod);
36extern uschar * tls_cert_signature(void *, uschar * mod);
37extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
38extern uschar * tls_cert_subject(void *, uschar * mod);
39extern uschar * tls_cert_subject_altname(void *, uschar * mod);
40extern uschar * tls_cert_version(void *, uschar * mod);
9d1c15ef 41
6a8a60e0
JH		 42extern uschar * tls_cert_fprt_md5(void *);
43extern uschar * tls_cert_fprt_sha1(void *);
9ef9101c 44extern uschar * tls_cert_fprt_sha256(void *);
6a8a60e0 45
f5d78688 46extern int tls_client_start(int, host_item *, address_item *,
0e66b3b6
JH		 47 transport_instance *
48#ifdef EXPERIMENTAL_DANE
49 , dns_answer *
50#endif
51 );
817d9f57 52extern void tls_close(BOOL, BOOL);
9d1c15ef 53extern int tls_export_cert(uschar *, size_t, void *);
059ec3d9
PH		 54extern int tls_feof(void);
55extern int tls_ferror(void);
9d1c15ef 56extern void tls_free_cert(void *);
059ec3d9 57extern int tls_getc(void);
9d1c15ef 58extern int tls_import_cert(const uschar *, void **);
817d9f57 59extern int tls_read(BOOL, uschar *, size_t);
17c76198 60extern int tls_server_start(const uschar *);
58eb016e 61extern BOOL tls_smtp_buffered(void);
059ec3d9 62extern int tls_ungetc(int);
389ca47a 63extern int tls_write(BOOL, const uschar *, size_t);
3375e053 64extern uschar *tls_validate_require_cipher(void);
36f12725 65extern void tls_version_report(FILE *);
e51c7be2 66# ifndef USE_GNUTLS
77bb000f 67extern BOOL tls_openssl_options_parse(uschar *, long *);
e51c7be2 68# endif
55414b25
JH		 69extern uschar * tls_field_from_dn(uschar *, const uschar *);
70extern BOOL tls_is_name_for_cert(const uschar *, void *);
0e66b3b6
JH		 71
72# ifdef EXPERIMENTAL_DANE
b8b1b5cb 73extern int tlsa_lookup(const host_item *, dns_answer *, BOOL, BOOL *);
0e66b3b6
JH		 74# endif
75
35aba663 76#endif /*SUPPORT_TLS*/
059ec3d9
PH		 77
78
79/* Everything else... */
80
81extern acl_block *acl_read(uschar *(*)(void), uschar **);
82extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
05caaeaa 83extern int acl_eval(int, uschar *, uschar **, uschar **);
333eea9c 84
38a0a95f
PH		 85extern tree_node *acl_var_create(uschar *);
86extern void acl_var_write(uschar *, uschar *, void *);
059ec3d9
PH		 87extern uschar *auth_b64encode(uschar *, int);
88extern int auth_b64decode(uschar *, uschar **);
e1af7642 89extern int auth_call_pam(const uschar *, uschar **);
059ec3d9 90extern int auth_call_pwcheck(uschar *, uschar **);
93a6fce2
JH		 91extern int auth_call_radius(const uschar *, uschar **);
92extern int auth_call_saslauthd(const uschar *, const uschar *,
93 const uschar *, const uschar *, uschar **);
16ff981e 94extern int auth_check_serv_cond(auth_instance *);
44bbabb5
PP		 95extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
96
059ec3d9
PH		 97extern int auth_get_data(uschar **, uschar *, int);
98extern int auth_get_no64_data(uschar **, uschar *);
99extern uschar *auth_xtextencode(uschar *, int);
100extern int auth_xtextdecode(uschar *, uschar **);
101
2e5b33cd 102extern void cancel_cutthrough_connection(const char *);
55414b25 103extern int check_host(void *, const uschar *, const uschar **, uschar **);
059ec3d9 104extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
55414b25
JH		 105extern pid_t child_open_uid(const uschar **, const uschar **, int,
106 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
e4bdf652
JH		 107extern uschar *cutthrough_finaldot(void);
108extern BOOL cutthrough_flush_send(void);
109extern BOOL cutthrough_headers_send(void);
110extern BOOL cutthrough_predata(void);
111extern BOOL cutthrough_puts(uschar *, int);
112extern BOOL cutthrough_put_nl(void);
059ec3d9
PH		 113
114extern void daemon_go(void);
6a8f9482
TK		 115
116#ifdef EXPERIMENTAL_DCC
117extern int dcc_process(uschar **);
118#endif
119
ed7f7860 120extern void debug_logging_activate(uschar *, uschar *);
55414b25 121extern void debug_print_argv(const uschar **);
059ec3d9
PH		 122extern void debug_print_ids(uschar *);
123extern void debug_print_string(uschar *);
124extern void debug_print_tree(tree_node *);
1ba28e2b 125extern void debug_vprintf(const char *, va_list);
ed7f7860
PP		 126extern void decode_bits(unsigned int *, unsigned int *,
127 int, int, uschar *, bit_table *, int, uschar *, int);
059ec3d9 128extern address_item *deliver_make_addr(uschar *, BOOL);
476be7e2 129extern void deliver_init(void);
817d9f57 130extern void delivery_log(int, address_item *, int, uschar *);
059ec3d9 131extern int deliver_message(uschar *, BOOL, BOOL);
e0df1c83 132extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
059ec3d9
PH		 133extern void deliver_set_expansions(address_item *);
134extern int deliver_split_address(address_item *);
135extern void deliver_succeeded(address_item *);
a39bd74d
JB		 136
137extern uschar *deliver_get_sender_address (uschar *id);
138
8523533c
TK		 139#ifdef WITH_OLD_DEMIME
140extern int demime(uschar **);
141#endif
1ba28e2b 142extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
80a47a2c 143#ifndef DISABLE_DKIM
f7572e5a
TK		 144extern BOOL dkim_transport_write_message(address_item *, int, int,
145 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
80a47a2c 146 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
f7572e5a 147#endif
059ec3d9 148extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
476be7e2 149extern int dns_basic_lookup(dns_answer *, const uschar *, int);
55414b25 150extern void dns_build_reverse(const uschar *, uschar *);
8c51eead 151extern void dns_init(BOOL, BOOL, BOOL);
1dc92d5a 152extern BOOL dns_is_secure(const dns_answer *);
55414b25 153extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
476be7e2 154extern void dns_pattern_init(void);
55414b25 155extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
059ec3d9
PH		 156extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
157extern uschar *dns_text_type(int);
36a3ae5f 158extern void dscp_list_to_stream(FILE *);
9e4f5962 159extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
059ec3d9
PH		 160
161extern void enq_end(uschar *);
162extern BOOL enq_start(uschar *);
774ef2d7 163#ifdef EXPERIMENTAL_EVENT
55414b25 164extern uschar *event_raise(uschar *, const uschar *, uschar *);
774ef2d7 165#endif
059ec3d9
PH		 166extern void exim_exit(int);
167extern void exim_nullstd(void);
168extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
169extern int exim_tvcmp(struct timeval *, struct timeval *);
170extern void exim_wait_tick(struct timeval *, int);
9c695f6d
JH		 171extern int exp_bool(address_item *addr,
172 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
173 uschar *svalue, BOOL *rvalue);
059ec3d9 174extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
93a6fce2
JH		 175extern uschar *expand_string(uschar *); /* public, cannot make const */
176extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
55414b25 177extern uschar *expand_string_copy(const uschar *);
97d17305 178extern int_eximarith_t expand_string_integer(uschar *, BOOL);
d9b2312b 179extern void modify_variable(uschar *, void *);
059ec3d9 180
4e71661f
JH		 181extern BOOL fd_ready(int, int);
182
059ec3d9
PH		 183extern int filter_interpret(uschar *, int, address_item **, uschar **);
184extern BOOL filter_personal(string_item *, BOOL);
f05da2e8 185extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
059ec3d9
PH		 186extern BOOL filter_system_interpret(address_item **, uschar **);
187
362145b5
JH		 188extern uschar * fn_hdrs_added(void);
189
1ba28e2b 190extern void header_add(int, const char *, ...);
059ec3d9
PH		 191extern int header_checkname(header_line *, BOOL);
192extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
7cd1141b 193extern int host_address_extract_port(uschar *);
059ec3d9 194extern uschar *host_and_ident(BOOL);
55414b25
JH		 195extern int host_aton(const uschar *, int *);
196extern void host_build_hostlist(host_item **, const uschar *, BOOL);
197extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
059ec3d9
PH		 198extern void host_build_log_info(void);
199extern void host_build_sender_fullhost(void);
55414b25
JH		 200extern BOOL host_find_byname(host_item *, const uschar *, int, const uschar **, BOOL);
201extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
202 uschar *, uschar *, uschar *, const uschar **, BOOL *);
059ec3d9 203extern ip_address_item *host_find_interfaces(void);
55414b25 204extern BOOL host_is_in_net(const uschar *, const uschar *, int);
059ec3d9 205extern BOOL host_is_tls_on_connect_port(int);
7cd1141b 206extern int host_item_get_port(host_item *);
059ec3d9
PH		 207extern void host_mask(int, int *, int);
208extern int host_name_lookup(void);
6f0c9a4f 209extern int host_nmtoa(int, int *, int, uschar *, int);
059ec3d9
PH		 210extern uschar *host_ntoa(int, const void *, uschar *, int *);
211extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
212
83e029d5 213extern void invert_address(uschar *, uschar *);
7eb6c37c 214extern int ip_addr(void *, int, const uschar *, int);
059ec3d9 215extern int ip_bind(int, int, uschar *, int);
a56cc2b8 216extern int ip_connect(int, int, const uschar *, int, int);
b1f8e4f8
JH		 217extern int ip_connectedsocket(int, const uschar *, int, int,
218 int, host_item *, uschar **);
13363eba 219extern int ip_get_address_family(int);
55414b25 220extern void ip_keepalive(int, const uschar *, BOOL);
059ec3d9
PH		 221extern int ip_recv(int, uschar *, int, int);
222extern int ip_socket(int, int);
223
3e60dd41
JH		 224extern int ip_tcpsocket(const uschar *, uschar **, int);
225extern int ip_unixsocket(const uschar *, uschar **);
226extern int ip_streamsocket(const uschar *, uschar **, int);
227
921b12ca 228extern uschar *local_part_quote(uschar *);
4840604e 229extern int log_create(uschar *);
921b12ca 230extern int log_create_as_exim(uschar *);
059ec3d9
PH		 231extern void log_close_all(void);
232
8523533c 233#ifdef WITH_CONTENT_SCAN
0f0c8159 234extern int malware(const uschar *, int);
dbc4b90d 235extern int malware_in_file(uschar *);
476be7e2 236extern void malware_init(void);
8523533c 237#endif
55414b25
JH		 238extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
239 unsigned int *, int, int, const uschar **);
240extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
241 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
242 const uschar *, const uschar **);
243extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
244 unsigned int *, int, BOOL, const uschar **);
245extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
246 const uschar **);
059ec3d9
PH		 247extern void md5_end(md5 *, const uschar *, int, uschar *);
248extern void md5_mid(md5 *, const uschar *);
249extern void md5_start(md5 *);
250extern void millisleep(int);
8523533c
TK		 251#ifdef WITH_CONTENT_SCAN
252struct mime_boundary_context;
54cdb463
PH		 253extern int mime_acl_check(uschar *acl, FILE *f,
254 struct mime_boundary_context *, uschar **, uschar **);
55414b25
JH		 255extern int mime_decode(const uschar **);
256extern int mime_regex(const uschar **);
8523533c 257#endif
059ec3d9
PH		 258extern uschar *moan_check_errorcopy(uschar *);
259extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
260 BOOL, uschar *);
e0df1c83 261extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
1ba28e2b 262extern void moan_tell_someone(uschar *, address_item *,
e0df1c83 263 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
059ec3d9 264extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
0e22dfd1 265extern void moan_write_from(FILE *);
1ba28e2b 266extern FILE *modefopen(const uschar *, const char *, mode_t);
059ec3d9 267
e4bdf652
JH		 268extern void open_cutthrough_connection( address_item * addr );
269
059ec3d9
PH		 270extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
271 BOOL);
272extern int parse_forward_list(uschar *, int, address_item **, uschar **,
55414b25 273 const uschar *, uschar *, error_block **);
059ec3d9
PH		 274extern uschar *parse_find_address_end(uschar *, BOOL);
275extern uschar *parse_find_at(uschar *);
55414b25 276extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
30dba1e6 277extern uschar *parse_message_id(uschar *, uschar **, uschar **);
55414b25 278extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
43ad7b7d 279extern uschar *parse_date_time(uschar *str, time_t *t);
17c76198
PP		 280extern int vaguely_random_number(int);
281#ifdef SUPPORT_TLS
282extern int vaguely_random_number_fallback(int);
283#endif
059ec3d9
PH		 284
285extern BOOL queue_action(uschar *, int, uschar **, int, int);
286extern void queue_check_only(void);
287extern void queue_list(int, uschar **, int);
288extern void queue_count(void);
289extern void queue_run(uschar *, uschar *, BOOL);
290
291extern int random_number(int);
e4a89c47 292extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
efd9a422
MH		 293 uschar *, uschar *, uschar *, ugid_block *, address_item **,
294 uschar **, error_block **, int *, uschar *);
059ec3d9
PH		 295extern int rda_is_filter(const uschar *);
296extern BOOL readconf_depends(driver_instance *, uschar *);
297extern void readconf_driver_init(uschar *, driver_instance **,
298 driver_info *, int, void *, int, optionlist *, int);
299extern uschar *readconf_find_option(void *);
300extern void readconf_main(void);
12f69989 301extern void readconf_print(uschar *, uschar *, BOOL);
059ec3d9
PH		 302extern uschar *readconf_printtime(int);
303extern uschar *readconf_readname(uschar *, int, uschar *);
1ad6489e 304extern int readconf_readtime(const uschar *, int, BOOL);
cb46fd2b 305extern void readconf_rest();
55414b25 306extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
328895cc 307extern void read_message_body(BOOL);
8f128379 308extern void receive_bomb_out(uschar *, uschar *);
059ec3d9
PH		 309extern BOOL receive_check_fs(int);
310extern BOOL receive_check_set_sender(uschar *);
311extern BOOL receive_msg(BOOL);
8e669ac1 312extern int receive_statvfs(BOOL, int *);
059ec3d9 313extern void receive_swallow_smtp(void);
8523533c 314#ifdef WITH_CONTENT_SCAN
55414b25 315extern int regex(const uschar **);
8523533c 316#endif
1dc92d5a 317extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
476be7e2 318extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
059ec3d9 319extern void retry_add_item(address_item *, uschar *, int);
55414b25 320extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
059ec3d9 321 uschar **, uschar **);
55414b25
JH		 322extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
323extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
ba9af0af 324 dbdata_retry *, time_t);
059ec3d9
PH		 325extern void retry_update(address_item **, address_item **, address_item **);
326extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
327extern uschar *rewrite_address_qualify(uschar *, BOOL);
55414b25
JH		 328extern header_line *rewrite_header(header_line *,
329 const uschar *, const uschar *,
059ec3d9
PH		 330 rewrite_rule *, int, BOOL);
331extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
332 rewrite_rule *);
333extern void rewrite_test(uschar *);
334extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
335 uschar **);
336extern int route_address(address_item *, address_item **, address_item **,
337 address_item **, address_item **, int);
55414b25
JH		 338extern int route_check_prefix(const uschar *, const uschar *);
339extern int route_check_suffix(const uschar *, const uschar *);
059ec3d9 340extern BOOL route_findgroup(uschar *, gid_t *);
55414b25 341extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
059ec3d9
PH		 342extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
343 uschar **);
344extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
345 struct passwd **, uid_t *, uschar **);
346extern void route_init(void);
347extern void route_tidyup(void);
348
55414b25 349extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
059ec3d9 350 int, int *);
55414b25
JH		 351extern int search_findtype(const uschar *, int);
352extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
059ec3d9
PH		 353 int *);
354extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
355extern void search_tidyup(void);
e0df1c83 356extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
059ec3d9
PH		 357extern void sha1_end(sha1 *, const uschar *, int, uschar *);
358extern void sha1_mid(sha1 *, const uschar *);
359extern void sha1_start(sha1 *);
e4a89c47 360extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
efd9a422 361 uschar *, address_item **, uschar **);
059ec3d9 362extern void sigalrm_handler(int);
58eb016e 363extern BOOL smtp_buffered(void);
059ec3d9 364extern void smtp_closedown(uschar *);
7eb6c37c
JH		 365extern int smtp_connect(host_item *, int, int, uschar *, int,
366 transport_instance *);
367extern int smtp_sock_connect(host_item *, int, int, uschar *,
368 transport_instance * tb, int);
059ec3d9
PH		 369extern int smtp_feof(void);
370extern int smtp_ferror(void);
371extern uschar *smtp_get_connection_info(void);
372extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
373 uschar **, uschar *);
374extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
375extern int smtp_getc(void);
376extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
b4ed4da0 377extern void smtp_log_no_mail(void);
4e88a19f 378extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
059ec3d9 379extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
a5bd321b 380extern void smtp_respond(uschar *, int, BOOL, uschar *);
8f128379 381extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
059ec3d9
PH		 382extern void smtp_send_prohibition_message(int, uschar *);
383extern int smtp_setup_msg(void);
384extern BOOL smtp_start_session(void);
385extern int smtp_ungetc(int);
d7b47fd0 386extern BOOL smtp_verify_helo(void);
e0df1c83 387extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
8523533c 388#ifdef WITH_CONTENT_SCAN
55414b25 389extern int spam(const uschar **);
0f0c8159 390extern FILE *spool_mbox(unsigned long *, const uschar *);
8523533c 391#endif
059ec3d9
PH		 392extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
393extern BOOL spool_open_datafile(uschar *);
394extern int spool_open_temp(uschar *);
395extern int spool_read_header(uschar *, BOOL, BOOL);
396extern int spool_write_header(uschar *, int, uschar **);
397extern int stdin_getc(void);
398extern int stdin_feof(void);
399extern int stdin_ferror(void);
400extern int stdin_ungetc(int);
401extern uschar *string_append(uschar *, int *, int *, int, ...);
76146973 402extern uschar *string_append_listele(uschar *, uschar, const uschar *);
00ba27c5 403extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
059ec3d9
PH		 404extern uschar *string_base62(unsigned long int);
405extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
406extern uschar *string_copy_dnsdomain(uschar *);
55414b25 407extern uschar *string_copy_malloc(const uschar *);
1dc92d5a 408extern uschar *string_copylc(const uschar *);
059ec3d9 409extern uschar *string_copynlc(uschar *, int);
55414b25 410extern uschar *string_dequote(const uschar **);
81f91683 411extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
059ec3d9 412extern uschar *string_format_size(int, uschar *);
55414b25 413extern int string_interpret_escape(const uschar **);
b1f8e4f8 414extern int string_is_ip_address(const uschar *, int *);
0d7911ea
JH		 415#ifdef EXPERIMENTAL_INTERNATIONAL
416extern BOOL string_is_utf8(const uschar *);
417#endif
059ec3d9 418extern uschar *string_log_address(address_item *, BOOL, BOOL);
55414b25 419extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
e0df1c83 420extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
55414b25 421extern const uschar *string_printing2(const uschar *, BOOL);
e28326d8 422extern uschar *string_split_message(uschar *);
c7396ac5 423extern uschar *string_unprinting(uschar *);
0d7911ea 424#ifdef EXPERIMENTAL_INTERNATIONAL
9d4319df 425extern uschar *string_address_utf8_to_alabel(uschar *, uschar **, int *);
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JH		 426extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
427extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
428extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
429extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
430#endif
1ba28e2b
PP		 431extern BOOL string_vformat(uschar *, int, const char *, va_list);
432extern int strcmpic(const uschar *, const uschar *);
433extern int strncmpic(const uschar *, const uschar *, int);
059ec3d9
PH		 434extern uschar *strstric(uschar *, uschar *, BOOL);
435
436extern uschar *tod_stamp(int);
41afb5cb 437
35aba663 438extern void tls_modify_variables(tls_support *);
55414b25 439extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
a39bd74d 440 BOOL *, oicf, void*);
059ec3d9 441extern void transport_init(void);
55414b25 442extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
059ec3d9
PH		 443 int);
444extern uschar *transport_rcpt_address(address_item *, BOOL);
55414b25
JH		 445extern BOOL transport_set_up_command(const uschar ***, uschar *,
446 BOOL, int, address_item *, uschar *, uschar **);
059ec3d9
PH		 447extern void transport_update_waiting(host_item *, uschar *);
448extern BOOL transport_write_block(int, uschar *, int);
1ba28e2b 449extern BOOL transport_write_string(int, const char *, ...);
511a6c14
JH		 450extern BOOL transport_headers_send(address_item *, int, uschar *, uschar *,
451 BOOL (*)(int, uschar *, int, BOOL), BOOL, rewrite_rule *, int);
059ec3d9
PH		 452extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
453 uschar *, uschar *, uschar *, rewrite_rule *, int);
454extern void tree_add_duplicate(uschar *, address_item *);
455extern void tree_add_nonrecipient(uschar *);
456extern void tree_add_unusable(host_item *);
457extern int tree_insertnode(tree_node **, tree_node *);
55414b25 458extern tree_node *tree_search(tree_node *, const uschar *);
059ec3d9 459extern void tree_write(tree_node *, FILE *);
38a0a95f 460extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
059ec3d9 461
8523533c
TK		 462#ifdef WITH_CONTENT_SCAN
463extern void unspool_mbox(void);
464#endif
465
4deaf07d
PH		 466extern int verify_address(address_item *, FILE *, int, int, int, int,
467 uschar *, uschar *, BOOL *);
55414b25 468extern int verify_check_dnsbl(const uschar **);
4deaf07d 469extern int verify_check_header_address(uschar **, uschar **, int, int, int,
fe5b5d0b 470 uschar *, uschar *, int, int *);
059ec3d9 471extern int verify_check_headers(uschar **);
770747fd 472extern int verify_check_header_names_ascii(uschar **);
059ec3d9 473extern int verify_check_host(uschar **);
1c41c9cc 474extern int verify_check_notblind(void);
5130845b 475extern int verify_check_given_host(uschar **, host_item *);
55414b25
JH		 476extern int verify_check_this_host(const uschar **, unsigned int *,
477 const uschar*, const uschar *, const uschar **);
059ec3d9
PH		 478extern address_item *verify_checked_sender(uschar *);
479extern void verify_get_ident(int);
480extern BOOL verify_sender(int *, uschar **);
481extern BOOL verify_sender_preliminary(int *, uschar **);
482extern void version_init(void);
483
17c76198
PP		 484extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
485
9d1c15ef
JH		 486/* vi: aw
487*/
059ec3d9 488/* End of functions.h */
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