constify

[user/henk/code/exim.git] / src / src / lookups / dnsdb.c

diff --git a/src/src/lookups/dnsdb.c b/src/src/lookups/dnsdb.c
index 1cf8df739a44034df74266d50fa7dc0191d4742c..cc711c5c353b34292a4f2f05ebc1303359b011ed 100644 (file)
--- a/src/src/lookups/dnsdb.c
+++ b/src/src/lookups/dnsdb.c
@@ -77,7 +77,7 @@ static int type_values[] = {
 /* See local README for interface description. */
 
 static void *
-dnsdb_open(uschar *filename, uschar **errmsg)
+dnsdb_open(const uschar * filename, uschar **errmsg)
 {
 filename = filename;   /* Keep picky compilers happy */
 errmsg = errmsg;       /* Ditto */
@@ -130,8 +130,8 @@ which may start with '<' in order to set a specific separator. The default
 separator, as always, is colon. */
 
 static int
-dnsdb_find(void *handle, uschar *filename, const uschar *keystring, int length,
-  uschar **result, uschar **errmsg, uint *do_cache)
+dnsdb_find(void * handle, const uschar * filename, const uschar * keystring,
+ int length, uschar ** result, uschar ** errmsg, uint * do_cache)
 {
 int rc;
 int sep = 0;
@@ -312,7 +312,6 @@ if (!outsep2) switch(type)
 
 while ((domain = string_nextinlist(&keystring, &sep, NULL, 0)))
   {
-  uschar rbuffer[256];
   int searchtype = type == T_CSA ? T_SRV :         /* record type we want */
                    type == T_MXH ? T_MX :
                    type == T_ZNS ? T_NS : type;
@@ -325,10 +324,7 @@ while ((domain = string_nextinlist(&keystring, &sep, NULL, 0)))
 
   if ((type == T_PTR || type == T_CSA) &&
       string_is_ip_address(domain, NULL) != 0)
-    {
-    dns_build_reverse(domain, rbuffer);
-    domain = rbuffer;
-    }
+    domain = dns_build_reverse(domain);
 
   do
     {