*************************************************/
/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
#ifndef _FUNCTIONS_H_
#define _FUNCTIONS_H_
+#include <ctype.h>
#include <sys/time.h>
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 gstring * auth_show_supported(gstring *);
extern uschar *auth_xtextencode(uschar *, int);
extern int auth_xtextdecode(uschar *, uschar **);
extern void bits_set(unsigned int *, size_t, int *);
extern void cancel_cutthrough_connection(BOOL, const uschar *);
+extern gstring *cat_file(FILE *, gstring *, uschar *);
+extern gstring *cat_file_tls(void *, gstring *, uschar *);
extern int check_host(void *, const uschar *, const uschar **, uschar **);
extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
+extern pid_t child_open_exim_function(int *, const uschar *);
+extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
+ const uschar *);
+extern pid_t child_open_function(uschar **, uschar **, int,
+ int *, int *, BOOL, const uschar *);
extern pid_t child_open_uid(const uschar **, const uschar **, int,
- uid_t *, gid_t *, int *, int *, uschar *, BOOL);
+ uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
extern BOOL cleanup_environment(void);
extern void cutthrough_data_puts(uschar *, int);
extern void cutthrough_data_put_nl(void);
extern void debug_print_string(uschar *);
extern void debug_print_tree(tree_node *);
extern void debug_vprintf(int, const char *, va_list);
+extern void debug_print_socket(int);
+
extern void decode_bits(unsigned int *, size_t, int *,
uschar *, bit_table *, int, uschar *, int);
extern void delete_pid_file(void);
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 *) NORETURN;
+extern void exim_exit(int) NORETURN;
extern void exim_nullstd(void);
extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
-extern void exim_underbar_exit(int);
+extern void exim_underbar_exit(int) NORETURN;
extern void exim_wait_tick(struct timeval *, int);
extern int exp_bool(address_item *addr,
uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
extern uschar *expand_file_big_buffer(const uschar *);
extern uschar *expand_string(uschar *); /* public, cannot make const */
extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
+extern uschar *expand_getkeyed(const uschar *, const uschar *);
+
extern uschar *expand_hide_passwords(uschar * );
extern uschar *expand_string_copy(const uschar *);
extern int_eximarith_t expand_string_integer(uschar *, BOOL);
extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
extern int ip_socket(int, int);
-extern int ip_tcpsocket(const uschar *, uschar **, int);
+extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
extern int ip_unixsocket(const uschar *, uschar **);
-extern int ip_streamsocket(const uschar *, uschar **, int);
+extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
extern int ipv6_nmtoa(int *, uschar *);
extern int malware(const uschar *, int);
extern int malware_in_file(uschar *);
extern void malware_init(void);
-extern void malware_show_supported(FILE *);
+extern gstring * malware_show_supported(gstring *);
#endif
extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
unsigned int *, int, int, const uschar **);
extern BOOL queue_action(uschar *, int, uschar **, int, int);
extern void queue_check_only(void);
+extern unsigned queue_count(void);
+extern unsigned queue_count_cached(void);
extern void queue_list(int, uschar **, int);
-extern void queue_count(void);
+#ifdef EXPERIMENTAL_QUEUE_RAMP
+extern void queue_notify_daemon(const uschar * hostname);
+#endif
extern void queue_run(uschar *, uschar *, BOOL);
extern int random_number(int);
uschar **);
extern int route_address(address_item *, address_item **, address_item **,
address_item **, address_item **, int);
-extern int route_check_prefix(const uschar *, const uschar *);
-extern int route_check_suffix(const uschar *, const uschar *);
+extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
+extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
extern BOOL route_findgroup(uschar *, gid_t *);
extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
struct passwd **, uid_t *, uschar **);
extern void route_init(void);
-extern void route_show_supported(FILE *);
+extern gstring * route_show_supported(gstring *);
extern void route_tidyup(void);
-extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
- int, int *);
+extern uschar *search_find(void *, const uschar *, uschar *, int,
+ const uschar *, int, int, int *, const uschar *);
extern int search_findtype(const uschar *, int);
extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
- int *);
-extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
+ int *, const uschar **);
+extern void *search_open(const uschar *, int, int, uid_t *, gid_t *);
extern void search_tidyup(void);
extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
extern void sha1_end(hctx *, const uschar *, int, uschar *);
#ifdef SUPPORT_I18N
extern BOOL string_is_utf8(const uschar *);
#endif
-extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
extern const uschar *string_printing2(const uschar *, BOOL);
extern uschar *string_split_message(uschar *);
extern uschar *string_unprinting(uschar *);
extern uschar *string_open_failed_trc(int, const uschar *, unsigned,
const char *, ...) PRINTF_FUNCTION(4,5);
+#define string_nextinlist(lp, sp, b, l) \
+ string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
+extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
+ const uschar * func, int line);
+
extern int strcmpic(const uschar *, const uschar *);
extern int strncmpic(const uschar *, const uschar *, int);
extern uschar *strstric(uschar *, uschar *, BOOL);
extern BOOL transport_write_string(int, const char *, ...);
extern BOOL transport_headers_send(transport_ctx *,
BOOL (*)(transport_ctx *, uschar *, int));
-extern void transport_show_supported(FILE *);
+extern gstring * transport_show_supported(gstring *);
extern BOOL transport_write_message(transport_ctx *, int);
extern void tree_add_duplicate(uschar *, address_item *);
extern void tree_add_nonrecipient(uschar *);
#else
extern BOOL is_tainted_fn(const void *);
-extern void * tainted_base, * tainted_top;
-
-return f.taint_check_slow
- ? is_tainted_fn(p) : p >= tainted_base && p < tainted_top;
+return is_tainted_fn(p);
#endif
}
/*XXX will likely need unchecked copy also */
+/* Advance the string pointer given over any whitespace.
+Return the next char as there's enought places using it to be useful. */
+
+#define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
+
+static inline uschar skip_whitespace(const uschar ** sp)
+{ while (isspace(**sp)) (*sp)++; return **sp; }
+
+
/******************************************************************************/
#if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
*************************************************/
/* This function assumes that memcpy() is faster than strcpy().
+The result is explicitly nul-terminated.
*/
static inline uschar *
-string_copy_taint_trc(const uschar *s, BOOL tainted, const char * func, int line)
+string_copyn_taint_trc(const uschar * s, unsigned len,
+ BOOL tainted, const char * func, int line)
{
-int len = Ustrlen(s) + 1;
-uschar *ss = store_get_3(len, tainted, func, line);
+uschar * ss = store_get_3(len + 1, tainted, func, line);
memcpy(ss, s, len);
+ss[len] = '\0';
return ss;
}
-#define string_copy_taint(s, tainted) \
- string_copy_taint_trc((s), tainted, __FUNCTION__, __LINE__)
+static inline uschar *
+string_copy_taint_trc(const uschar * s, BOOL tainted, const char * func, int line)
+{ return string_copyn_taint_trc(s, Ustrlen(s), tainted, func, line); }
+static inline uschar *
+string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
+{ return string_copyn_taint_trc(s, len, is_tainted(s), func, line); }
static inline uschar *
string_copy_trc(const uschar * s, const char * func, int line)
-{
-return string_copy_taint_trc((s), is_tainted(s), func, line);
-}
+{ return string_copy_taint_trc(s, is_tainted(s), func, line); }
+
+
+/* String-copy functions explicitly setting the taint status */
+#define string_copyn_taint(s, len, tainted) \
+ string_copyn_taint_trc((s), (len), (tainted), __FUNCTION__, __LINE__)
+#define string_copy_taint(s, tainted) \
+ string_copy_taint_trc((s), (tainted), __FUNCTION__, __LINE__)
+
+/* Simple string-copy functions maintaining the taint */
+
+#define string_copyn(s, len) \
+ string_copyn_taint_trc((s), (len), is_tainted(s), __FUNCTION__, __LINE__)
#define string_copy(s) \
- string_copy_trc((s), __FUNCTION__, __LINE__)
+ string_copy_taint_trc((s), is_tainted(s), __FUNCTION__, __LINE__)
/*************************************************
-/*************************************************
-* 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, is_tainted(s));
-Ustrncpy(ss, s, n);
-ss[n] = 0;
-return ss;
-}
-
/*************************************************
* Copy, lowercase, and save string, given length *
*************************************************/
return g;
}
+
+/* Copy the content of a string to tainted memory */
+
+static inline void
+gstring_rebuffer(gstring * g)
+{
+uschar * s = store_get(g->size, TRUE);
+memcpy(s, g->s, g->ptr);
+g->s = s;
+}
+
+
/******************************************************************************/
#define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
testharness_pause_ms(int millisec)
{
#ifndef MEASURE_TIMING
-if (f.running_in_test_harness) millisleep(millisec);
+if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
#endif
}
exim_open2(const char *pathname, int flags)
{
if (!is_tainted(pathname)) return open(pathname, flags);
-log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
+log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
errno = EACCES;
return -1;
}
exim_open(const char *pathname, int flags, mode_t mode)
{
if (!is_tainted(pathname)) return open(pathname, flags, mode);
-log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
+log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
errno = EACCES;
return -1;
}
exim_openat(int dirfd, const char *pathname, int flags)
{
if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
-log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
+log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
errno = EACCES;
return -1;
}
exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
{
if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
-log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
+log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
errno = EACCES;
return -1;
}
exim_fopen(const char *pathname, const char *mode)
{
if (!is_tainted(pathname)) return fopen(pathname, mode);
-log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'\n", pathname);
+log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
+errno = EACCES;
+return NULL;
+}
+
+static inline DIR *
+exim_opendir(const uschar * name)
+{
+if (!is_tainted(name)) return opendir(CCS name);
+log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
errno = EACCES;
return NULL;
}
+/******************************************************************************/
+# if !defined(COMPILE_UTILITY)
+/* Process manipulation */
+
+static inline pid_t
+exim_fork(const unsigned char * purpose)
+{
+pid_t pid;
+DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
+if ((pid = fork()) == 0)
+ {
+ process_purpose = purpose;
+ DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
+ }
+else
+ {
+ testharness_pause_ms(100); /* let child work */
+ DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
+ }
+return pid;
+}
+
+
+static inline pid_t
+child_open_exim(int * fdptr, const uschar * purpose)
+{ return child_open_exim_function(fdptr, purpose); }
+
+static inline pid_t
+child_open_exim2(int * fdptr, uschar * sender,
+ uschar * sender_auth, const uschar * purpose)
+{ return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
+
+static inline pid_t
+child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
+ int *outfdptr, BOOL make_leader, const uschar * purpose)
+{ return child_open_function(argv, envp, newumask, infdptr,
+ outfdptr, make_leader, purpose);
+}
+
+# endif /* !COMPILE_UTILITY */
+
+/******************************************************************************/
#endif /* !MACRO_PREDEF */
#endif /* _FUNCTIONS_H_ */
git://git.exim.org / users / jgh / exim.git / blobdiff