Replace the store_release() internal interface, which was excessively unsafe.

[exim.git] / src / src / receive.c

diff --git a/src/src/receive.c b/src/src/receive.c
index e7e518a921b3c3e6d42ac16ff978ac9f18b52940..93c091c808189b098dcc330100ddb234d7960031 100644 (file)
--- a/src/src/receive.c
+++ b/src/src/receive.c
@@ -1810,8 +1810,8 @@ for (;;)
   (and sometimes lunatic messages can have ones that are 100s of K long) we
   call store_release() for strings that have been copied - if the string is at
   the start of a block (and therefore the only thing in it, because we aren't
-  doing any other gets), the block gets freed. We can only do this because we
-  know there are no other calls to store_get() going on. */
+  doing any other gets), the block gets freed. We can only do this release if
+  there were no allocations since the once that we want to free. */
 
   if (ptr >= header_size - 4)
     {
@@ -1819,12 +1819,7 @@ for (;;)
     /* header_size += 256; */
     header_size *= 2;
     if (!store_extend(next->text, oldsize, header_size))
-      {
-      uschar *newtext = store_get(header_size);
-      memcpy(newtext, next->text, ptr);
-      store_release(next->text);
-      next->text = newtext;
-      }
+      next->text = store_newblock(next->text, header_size, ptr);
     }
 
   /* Cope with receiving a binary zero. There is dispute about whether