tidying: coverity fixes

[exim.git] / src / src / transports / autoreply.c

diff --git a/src/src/transports/autoreply.c b/src/src/transports/autoreply.c
index a90a6852e588dd97e3145b0edc92df981a377b36..3b4463075c340cbc0bf918e2308639da6d21114a 100644 (file)
--- a/src/src/transports/autoreply.c
+++ b/src/src/transports/autoreply.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -157,12 +157,13 @@ if (ss == NULL)
 if (type != cke_text) for (t = ss; *t != 0; t++)
   {
   int c = *t;
+  const uschar * sp;
   if (mac_isprint(c)) continue;
   if (type == cke_hdr && c == '\n' && (t[1] == ' ' || t[1] == '\t')) continue;
-  s = string_printing(s);
+  sp = string_printing(s);
   addr->transport_return = FAIL;
   addr->message = string_sprintf("Expansion of \"%s\" in %s transport "
-    "contains non-printing character %d", s, name, c);
+    "contains non-printing character %d", sp, name, c);
   return NULL;
   }
 
@@ -187,7 +188,7 @@ Returns:      nothing
 */
 
 static void
-check_never_mail(uschar **listptr, uschar *never_mail)
+check_never_mail(uschar **listptr, const uschar *never_mail)
 {
 uschar *s = *listptr;
 
@@ -266,7 +267,6 @@ autoreply_transport_entry(
 {
 int fd, pid, rc;
 int cache_fd = -1;
-int log_fd = -1;
 int cache_size = 0;
 int add_size = 0;
 EXIM_DB *dbm_file = NULL;
@@ -379,7 +379,7 @@ remove those that match. */
 
 if (ob->never_mail != NULL)
   {
-  uschar *never_mail = expand_string(ob->never_mail);
+  const uschar *never_mail = expand_string(ob->never_mail);
 
   if (never_mail == NULL)
     {
@@ -485,7 +485,7 @@ if (oncelog != NULL && *oncelog != 0 && to != NULL)
     {
     EXIM_DATUM key_datum, result_datum;
     EXIM_DBOPEN(oncelog, O_RDWR|O_CREAT, ob->mode, &dbm_file);
-    if (dbm_file == NULL)
+    if (!dbm_file)
       {
       addr->transport_return = DEFER;
       addr->message = string_sprintf("Failed to open %s file %s when sending "
@@ -521,9 +521,10 @@ if (oncelog != NULL && *oncelog != 0 && to != NULL)
 
   if (then != 0 && (once_repeat_sec <= 0 || now - then < once_repeat_sec))
     {
+    int log_fd;
     DEBUG(D_transport) debug_printf("message previously sent to %s%s\n", to,
       (once_repeat_sec > 0)? " and repeat time not reached" : "");
-    log_fd = Uopen(logfile, O_WRONLY|O_APPEND|O_CREAT, ob->mode);
+    log_fd = logfile ? Uopen(logfile, O_WRONLY|O_APPEND|O_CREAT, ob->mode) : -1;
     if (log_fd >= 0)
       {
       uschar *ptr = log_buffer;
@@ -690,6 +691,17 @@ if (return_message)
     US"------ This is a copy of the body of the message, without the headers.\n"
     :
     US"------ This is a copy of the message, including all the headers.\n";
+  transport_ctx tctx = {
+    fileno(f),
+    tblock,
+    addr,
+    NULL, NULL,
+    (tblock->body_only ? topt_no_headers : 0) |
+    (tblock->headers_only ? topt_no_body : 0) |
+    (tblock->return_path_add ? topt_add_return_path : 0) |
+    (tblock->delivery_date_add ? topt_add_delivery_date : 0) |
+    (tblock->envelope_to_add ? topt_add_envelope_to : 0)
+  };
 
   if (bounce_return_size_limit > 0 && !tblock->headers_only)
     {
@@ -709,14 +721,7 @@ if (return_message)
 
   fflush(f);
   transport_count = 0;
-  transport_write_message(addr, fileno(f),
-    (tblock->body_only? topt_no_headers : 0) |
-    (tblock->headers_only? topt_no_body : 0) |
-    (tblock->return_path_add? topt_add_return_path : 0) |
-    (tblock->delivery_date_add? topt_add_delivery_date : 0) |
-    (tblock->envelope_to_add? topt_add_envelope_to : 0),
-    bounce_return_size_limit, tblock->add_headers, tblock->remove_headers,
-    NULL, NULL, tblock->rewrite_rules, tblock->rewrite_existflags);
+  transport_write_message(&tctx, bounce_return_size_limit);
   }
 
 /* End the message and wait for the child process to end; no timeout. */
@@ -740,30 +745,32 @@ if (cache_fd >= 0)
   {
   uschar *from = cache_buff;
   int size = cache_size;
-  (void)lseek(cache_fd, 0, SEEK_SET);
 
-  if (cache_time == NULL)
+  if (lseek(cache_fd, 0, SEEK_SET) == 0)
     {
-    cache_time = from + size;
-    memcpy(cache_time + sizeof(time_t), to, add_size - sizeof(time_t));
-    size += add_size;
-
-    if (cache_size > 0 && size > ob->once_file_size)
+    if (!cache_time)
       {
-      from += sizeof(time_t) + Ustrlen(from + sizeof(time_t)) + 1;
-      size -= (from - cache_buff);
+      cache_time = from + size;
+      memcpy(cache_time + sizeof(time_t), to, add_size - sizeof(time_t));
+      size += add_size;
+
+      if (cache_size > 0 && size > ob->once_file_size)
+       {
+       from += sizeof(time_t) + Ustrlen(from + sizeof(time_t)) + 1;
+       size -= (from - cache_buff);
+       }
       }
-    }
 
-  memcpy(cache_time, &now, sizeof(time_t));
-  if(write(cache_fd, from, size) != size)
-    DEBUG(D_transport) debug_printf("Problem writing cache file %s for %s "
-      "transport\n", oncelog, tblock->name);
+    memcpy(cache_time, &now, sizeof(time_t));
+    if(write(cache_fd, from, size) != size)
+      DEBUG(D_transport) debug_printf("Problem writing cache file %s for %s "
+       "transport\n", oncelog, tblock->name);
+    }
   }
 
 /* Update DBM file */
 
-else if (dbm_file != NULL)
+else if (dbm_file)
   {
   EXIM_DATUM key_datum, value_datum;
   EXIM_DATUM_INIT(key_datum);          /* Some DBM libraries need to have */
@@ -864,7 +871,7 @@ if (logfile != NULL)
   }
 
 END_OFF:
-if (dbm_file != NULL) EXIM_DBCLOSE(dbm_file);
+if (dbm_file) EXIM_DBCLOSE(dbm_file);
 if (cache_fd > 0) (void)close(cache_fd);
 
 DEBUG(D_transport) debug_printf("%s transport succeeded\n", tblock->name);