From eac732adbd59b15f10f4db14414dd1405b488e65 Mon Sep 17 00:00:00 2001
From: "Heiko Schlittermann (HS12-RIPE)" <hs@schlittermann.de>
Date: Thu, 17 Mar 2016 11:06:38 +0100
Subject: [PATCH] Constify spf

---
 src/src/lookups/spf.c | 2 +-
 src/src/spf.c         | 4 ++--
 src/src/spf.h         | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/src/lookups/spf.c b/src/src/lookups/spf.c
index 2671fc9c4..8b846ba55 100644
--- a/src/src/lookups/spf.c
+++ b/src/src/lookups/spf.c
@@ -51,7 +51,7 @@ spf_close(void *handle)
 }
 
 static int
-spf_find(void *handle, uschar *filename, uschar *keystring, int key_len,
+spf_find(void *handle, uschar *filename, const uschar *keystring, int key_len,
              uschar **result, uschar **errmsg, uint *do_cache)
 {
   SPF_server_t *spf_server = handle;
diff --git a/src/src/spf.c b/src/src/spf.c
index 7167f5778..2a9dcb78e 100644
--- a/src/src/spf.c
+++ b/src/src/spf.c
@@ -74,9 +74,9 @@ int spf_init(uschar *spf_helo_domain, uschar *spf_remote_addr) {
    context (if any), retrieves the result, sets up expansion
    strings and evaluates the condition outcome. */
 
-int spf_process(uschar **listptr, uschar *spf_envelope_sender, int action) {
+int spf_process(const uschar **listptr, uschar *spf_envelope_sender, int action) {
   int sep = 0;
-  uschar *list = *listptr;
+  const uschar *list = *listptr;
   uschar *spf_result_id;
   uschar spf_result_id_buffer[128];
   int rc = SPF_RESULT_PERMERROR;
diff --git a/src/src/spf.h b/src/src/spf.h
index 0ce5d007a..3d5f621fd 100644
--- a/src/src/spf.h
+++ b/src/src/spf.h
@@ -24,7 +24,7 @@ typedef struct spf_result_id {
 
 /* prototypes */
 int spf_init(uschar *,uschar *);
-int spf_process(uschar **, uschar *, int);
+int spf_process(const uschar **, uschar *, int);
 
 #define SPF_PROCESS_NORMAL  0
 #define SPF_PROCESS_GUESS   1
-- 
2.30.2