X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/4b4856ff163c6fd31f07511fd1f5c5d9ffc57f53..b4f579d134197249b448cb5d8abf801ba4c729bb:/src/src/functions.h diff --git a/src/src/functions.h b/src/src/functions.h index 0b261177c..806ba755d 100644 --- a/src/src/functions.h +++ b/src/src/functions.h @@ -10,6 +10,8 @@ to avoid having a lot of tiddly little headers with only a couple of lines in them. However, some functions that are used (or not used) by utility programs are in in fact in separate headers. */ +#ifndef _FUNCTIONS_H_ +#define _FUNCTIONS_H_ #ifdef EXIM_PERL @@ -20,7 +22,7 @@ extern uschar *init_perl(uschar *); #endif -#ifdef SUPPORT_TLS +#ifndef DISABLE_TLS extern const char * std_dh_prime_default(void); extern const char * @@ -44,14 +46,12 @@ extern uschar * tls_cert_fprt_md5(void *); extern uschar * tls_cert_fprt_sha1(void *); extern uschar * tls_cert_fprt_sha256(void *); -extern int tls_client_start(int, host_item *, address_item *, - transport_instance *, -# ifdef SUPPORT_DANE - dns_answer *, -# endif - uschar **); -extern void tls_close(BOOL, int); +extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *, + void *, tls_support *, uschar **); + +extern void tls_close(void *, int); extern BOOL tls_could_read(void); +extern void tls_daemon_init(void); extern int tls_export_cert(uschar *, size_t, void *); extern int tls_feof(void); extern int tls_ferror(void); @@ -60,14 +60,14 @@ extern int tls_getc(unsigned); extern uschar *tls_getbuf(unsigned *); extern void tls_get_cache(void); extern int tls_import_cert(const uschar *, void **); -extern int tls_read(BOOL, uschar *, size_t); +extern int tls_read(void *, uschar *, size_t); extern int tls_server_start(const uschar *, uschar **); extern BOOL tls_smtp_buffered(void); extern int tls_ungetc(int); -extern int tls_write(BOOL, const uschar *, size_t, BOOL); +extern int tls_write(void *, const uschar *, size_t, BOOL); extern uschar *tls_validate_require_cipher(void); extern void tls_version_report(FILE *); -# ifndef USE_GNUTLS +# ifdef USE_OPENSSL extern BOOL tls_openssl_options_parse(uschar *, long *); # endif extern uschar * tls_field_from_dn(uschar *, const uschar *); @@ -77,7 +77,7 @@ extern BOOL tls_is_name_for_cert(const uschar *, void *); extern int tlsa_lookup(const host_item *, dns_answer *, BOOL); # endif -#endif /*SUPPORT_TLS*/ +#endif /*DISABLE_TLS*/ /* Everything else... */ @@ -93,7 +93,9 @@ extern void acl_var_write(uschar *, uschar *, void *); 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); @@ -104,26 +106,33 @@ 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 **, 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 void auth_show_supported(FILE *); extern uschar *auth_xtextencode(uschar *, int); extern int auth_xtextdecode(uschar *, uschar **); -extern gstring *authres_smtpauth(gstring *); -#ifdef SUPPORT_SPF -extern gstring *authres_spf(gstring *); +#ifdef EXPERIMENTAL_ARC +extern gstring *authres_arc(gstring *); #endif #ifndef DISABLE_DKIM extern gstring *authres_dkim(gstring *); #endif -#ifdef EXPERIMENTAL_ARC -extern gstring *authres_arc(gstring *); +#ifdef EXPERIMENTAL_DMARC +extern gstring *authres_dmarc(gstring *); +#endif +extern gstring *authres_smtpauth(gstring *); +#ifdef SUPPORT_SPF +extern gstring *authres_spf(gstring *); #endif -extern uschar *b64encode(uschar *, int); +extern uschar *b64encode(const uschar *, int); extern int b64decode(const uschar *, uschar **); extern int bdat_getc(unsigned); extern uschar *bdat_getbuf(unsigned *); @@ -203,8 +212,10 @@ extern BOOL enq_start(uschar *, unsigned); extern uschar *event_raise(uschar *, const uschar *, uschar *); extern void msg_event_raise(const uschar *, const address_item *); #endif + +extern int exim_chown_failure(int, const uschar*, uid_t, gid_t); extern const uschar * exim_errstr(int); -extern void exim_exit(int, const uschar *); +extern void exim_exit(int, const uschar *) NORETURN; extern void exim_nullstd(void); extern void exim_setugid(uid_t, gid_t, BOOL, uschar *); extern void exim_wait_tick(struct timeval *, int); @@ -220,7 +231,7 @@ 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, int); +extern BOOL fd_ready(int, time_t); extern int filter_interpret(uschar *, int, address_item **, uschar **); extern BOOL filter_personal(string_item *, BOOL); @@ -229,9 +240,8 @@ extern BOOL filter_system_interpret(address_item **, uschar **); extern uschar * fn_hdrs_added(void); -extern void gstring_reset_unused(gstring *); - 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 *); @@ -266,7 +276,7 @@ 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(int, uschar *, int, int); +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); @@ -317,6 +327,8 @@ extern uschar *moan_check_errorcopy(uschar *); extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *, BOOL, uschar *); extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3); +extern BOOL moan_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); @@ -336,7 +348,7 @@ extern uschar *parse_message_id(uschar *, uschar **, uschar **); extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL); extern uschar *parse_date_time(uschar *str, time_t *t); extern int vaguely_random_number(int); -#ifdef SUPPORT_TLS +#ifndef DISABLE_TLS extern int vaguely_random_number_fallback(int); #endif @@ -347,6 +359,7 @@ extern void queue_count(void); extern void queue_run(uschar *, uschar *, BOOL); extern int random_number(int); +extern const uschar *rc_to_string(int); extern int rda_interpret(redirect_block *, int, uschar *, uschar *, uschar *, uschar *, uschar *, ugid_block *, address_item **, uschar **, error_block **, int *, uschar *); @@ -365,11 +378,11 @@ 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 *); +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 receive_statvfs(BOOL, int *); +extern int_eximarith_t receive_statvfs(BOOL, int *); extern void receive_swallow_smtp(void); #ifdef WITH_CONTENT_SCAN extern int regex(const uschar **); @@ -423,9 +436,12 @@ extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *, extern void sigalrm_handler(int); extern BOOL smtp_buffered(void); extern void smtp_closedown(uschar *); +extern void 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 uschar *smtp_cmd_hist(void); -extern int smtp_connect(host_item *, int, uschar *, int, - transport_instance *); +extern int smtp_connect(smtp_connect_args *, const blob *); extern int smtp_sock_connect(host_item *, int, int, uschar *, transport_instance * tb, int, const blob *); extern int smtp_feof(void); @@ -440,8 +456,8 @@ extern void smtp_get_cache(void); extern int smtp_handle_acl_fail(int, int, uschar *, uschar *); extern void smtp_log_no_mail(void); extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL); -extern void smtp_proxy_tls(uschar *, size_t, int *, int); -extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int); +extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int) 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 *, ...); @@ -451,7 +467,7 @@ extern int smtp_setup_msg(void); extern BOOL smtp_start_session(void); extern int smtp_ungetc(int); extern BOOL smtp_verify_helo(void); -extern int smtp_write_command(smtp_outblock *, int, const char *, ...) PRINTF_FUNCTION(3,4); +extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4); #ifdef WITH_CONTENT_SCAN extern int spam(const uschar **); extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **); @@ -472,19 +488,17 @@ extern int stdin_ungetc(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_copylc(const uschar *); -extern uschar *string_copynlc(uschar *, int); extern uschar *string_dequote(const uschar **); +extern gstring *string_fmt_append(gstring *, const char *, ...) ALMOST_PRINTF(2,3); extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4); extern uschar *string_format_size(int, uschar *); -extern uschar *string_from_gstring(gstring *); -extern gstring *string_get(unsigned); extern int string_interpret_escape(const uschar **); extern int string_is_ip_address(const uschar *, int *); #ifdef SUPPORT_I18N @@ -504,7 +518,7 @@ extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **); extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **); extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **); #endif -extern BOOL string_vformat(uschar *, int, const char *, va_list); +extern gstring *string_vformat(gstring *, BOOL, const char *, va_list); extern int strcmpic(const uschar *, const uschar *); extern int strncmpic(const uschar *, const uschar *, int); extern uschar *strstric(uschar *, uschar *, BOOL); @@ -537,6 +551,7 @@ extern BOOL transport_write_message(transport_ctx *, int); extern void tree_add_duplicate(uschar *, address_item *); extern void tree_add_nonrecipient(uschar *); extern void tree_add_unusable(host_item *); +extern void tree_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 *); @@ -557,8 +572,8 @@ extern int verify_check_header_address(uschar **, uschar **, int, int, int, extern int verify_check_headers(uschar **); extern int verify_check_header_names_ascii(uschar **); extern int verify_check_host(uschar **); -extern int verify_check_notblind(void); -extern int verify_check_given_host(uschar **, host_item *); +extern int verify_check_notblind(BOOL); +extern int verify_check_given_host(const uschar **, const host_item *); extern int verify_check_this_host(const uschar **, unsigned int *, const uschar*, const uschar *, const uschar **); extern address_item *verify_checked_sender(uschar *); @@ -571,6 +586,168 @@ extern BOOL write_chunk(transport_ctx *, uschar *, int); extern ssize_t write_to_fd_buf(int, const uschar *, size_t); +#if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY) +/* exim_chown - in some NFSv4 setups *seemes* to be an issue with +chown(, ). + +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 */ + +/************************************************* +* Copy and save string * +*************************************************/ + +/* This function assumes that memcpy() is faster than strcpy(). +*/ + +#if !defined(MACRO_PREDEF) +static inline uschar * +string_copy(const uschar *s) +{ +int len = Ustrlen(s) + 1; +uschar *ss = store_get(len); +memcpy(ss, s, len); +return ss; +} + + +/************************************************* +* 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); +uschar *p = ss; +while (*s != 0) *p++ = tolower(*s++); +*p = 0; +return ss; +} + + + +/************************************************* +* Copy 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 + +This is an API for local_scan hence not static. +*/ + +static inline uschar * +string_copyn(const uschar *s, int n) +{ +uschar *ss = store_get(n + 1); +Ustrncpy(ss, s, n); +ss[n] = 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); +uschar *p = ss; +while (n-- > 0) *p++ = tolower(*s++); +*p = 0; +return ss; +} + + +/******************************************************************************/ +/* Growable-string functions */ + +/* Create a growable-string with some preassigned space, in untainted memory */ + +static inline gstring * +string_get(unsigned size) +{ +gstring * g = store_get(sizeof(gstring) + size); +g->size = size; +g->ptr = 0; +g->s = US(g + 1); +return g; +} + +/* 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 void +gstring_release_unused(gstring * g) +{ +if (g) store_reset(g->s + (g->size = g->ptr + 1)); +} + +/******************************************************************************/ +#endif /* !MACRO_PREDEF */ + +#endif /* _FUNCTIONS_H_ */ + /* vi: aw */ /* End of functions.h */