Experimental: ESMTP LIMITS extension

[exim.git] / src / src / functions.h

diff --git a/src/src/functions.h b/src/src/functions.h
index 5ffb23d1e0cced19d0b503a754c1913eadc747e1..7d6e3380e290c75fbcfdcdc8ced4dc5d88c1d577 100644 (file)
--- a/src/src/functions.h
+++ b/src/src/functions.h
@@ -340,6 +340,9 @@ extern int     match_isinlist(const uschar *, const uschar **, int, tree_node **
                  unsigned int *, int, BOOL, const uschar **);
 extern int     match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
                  const uschar **);
+
+extern void    message_start(void);
+extern void    message_tidyup(void);
 extern void    md5_end(md5 *, const uschar *, int, uschar *);
 extern void    md5_mid(md5 *, const uschar *);
 extern void    md5_start(md5 *);
@@ -522,6 +525,8 @@ extern int     stdin_ferror(void);
 extern int     stdin_ungetc(int);
 
 extern void    store_exit(void);
+extern void    store_init(void);
+
 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;
@@ -588,8 +593,11 @@ extern BOOL    transport_check_waiting(const uschar *, const uschar *, int, usch
 extern void    transport_init(void);
 extern void    transport_do_pass_socket(const uschar *, const uschar *,
                 const uschar *, uschar *, int);
-extern BOOL    transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
-                 int);
+extern BOOL    transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+                       , unsigned, unsigned, unsigned
+#endif
+                       );
 extern uschar *transport_rcpt_address(address_item *, BOOL);
 extern BOOL    transport_set_up_command(const uschar ***, uschar *,
                 BOOL, int, address_item *, uschar *, uschar **);
@@ -961,20 +969,34 @@ g->s = s;
 }
 
 
+# ifndef COMPILE_UTILITY
 /******************************************************************************/
+/* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
+for them as the strings we proceed to copy from them meant they could not be
+released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
+we do have to take care over marking tainted all copied strings.  A separate pool
+could be used and would handle that implicitly. */
 
 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
 
 static inline dns_answer *
 store_get_dns_answer_trc(const uschar * func, unsigned line)
 {
-return store_get_3(sizeof(dns_answer), TRUE, CCS func, line);  /* use tainted mem */
+/* return store_get_3(sizeof(dns_answer), TRUE, CCS func, line);   use tainted mem */
+return store_malloc_3(sizeof(dns_answer), CCS func, line);
+}
+
+#define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
+
+static inline void
+store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
+{
+store_free_3(dnsa, CCS func, line);
 }
 
 /******************************************************************************/
 /* Routines with knowledge of spool layout */
 
-# ifndef COMPILE_UTILITY
 static inline void
 spool_pname_buf(uschar * buf, int len)
 {
@@ -1040,18 +1062,25 @@ subdir_str[1] = '\0';
 /******************************************************************************/
 /* Time calculations */
 
+/* Diff two times (later, earlier) returning diff in 1st arg */
 static inline void
-timesince(struct timeval * diff, const struct timeval * then)
+timediff(struct timeval * later, const struct timeval * earlier)
 {
-gettimeofday(diff, NULL);
-diff->tv_sec -= then->tv_sec;
-if ((diff->tv_usec -= then->tv_usec) < 0)
+later->tv_sec -= earlier->tv_sec;
+if ((later->tv_usec -= earlier->tv_usec) < 0)
   {
-  diff->tv_sec--;
-  diff->tv_usec += 1000*1000;
+  later->tv_sec--;
+  later->tv_usec += 1000*1000;
   }
 }
 
+static inline void
+timesince(struct timeval * diff, const struct timeval * then)
+{
+gettimeofday(diff, NULL);
+timediff(diff, then);
+}
+
 static inline uschar *
 string_timediff(const struct timeval * diff)
 {