extern int tls_client_start(int, host_item *, address_item *,
transport_instance *
extern int tls_client_start(int, host_item *, address_item *,
transport_instance *
);
extern void tls_close(BOOL, BOOL);
extern int tls_export_cert(uschar *, size_t, void *);
extern int tls_feof(void);
extern int tls_ferror(void);
);
extern void tls_close(BOOL, BOOL);
extern int tls_export_cert(uschar *, size_t, void *);
extern int tls_feof(void);
extern int tls_ferror(void);
extern int tls_getc(void);
extern int tls_import_cert(const uschar *, void **);
extern int tls_read(BOOL, uschar *, size_t);
extern int tls_getc(void);
extern int tls_import_cert(const uschar *, void **);
extern int tls_read(BOOL, uschar *, size_t);
extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
extern pid_t child_open_uid(const uschar **, const uschar **, int,
uid_t *, gid_t *, int *, int *, uschar *, BOOL);
extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
extern pid_t child_open_uid(const uschar **, const uschar **, int,
uid_t *, gid_t *, int *, int *, uschar *, BOOL);
extern uschar *cutthrough_finaldot(void);
extern BOOL cutthrough_flush_send(void);
extern BOOL cutthrough_headers_send(void);
extern uschar *cutthrough_finaldot(void);
extern BOOL cutthrough_flush_send(void);
extern BOOL cutthrough_headers_send(void);
extern int dns_basic_lookup(dns_answer *, const uschar *, int);
extern void dns_build_reverse(const uschar *, uschar *);
extern void dns_init(BOOL, BOOL, BOOL);
extern int dns_basic_lookup(dns_answer *, const uschar *, int);
extern void dns_build_reverse(const uschar *, uschar *);
extern void dns_init(BOOL, BOOL, BOOL);
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 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 uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
extern uschar *string_base62(unsigned long int);
extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
extern uschar *string_base62(unsigned long int);
extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
extern uschar *string_copy_dnsdomain(uschar *);
extern uschar *string_copy_malloc(const uschar *);
extern uschar *string_copylc(const uschar *);
extern uschar *string_copy_dnsdomain(uschar *);
extern uschar *string_copy_malloc(const uschar *);
extern uschar *string_copylc(const uschar *);