[SECNET PATCH 13/14] util: priomsg: Provide and use priomsg_update_fixed

[Ian Jackson]

We are going to want to reuse this.

No functional change.

Signed-off-by: Ian Jackson <ijackson at chiark.greenend.org.uk>
---
 site.c | 5 ++---
 util.c | 5 +++++
 util.h | 3 +++
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/site.c b/site.c
index b210e8b..568b18d 100644
--- a/site.c
+++ b/site.c
@@ -2032,9 +2032,8 @@ static bool_t site_incoming(void *sst, struct buffer_if *buf,
 	return True;
     }
 
-    if (priomsg_update_p(whynot, comm_notify_whynot_general))
-	truncmsg_add_string(&whynot->m,
-			    "not MSG1 or PROD; unknown dest index");
+    priomsg_update_fixed(whynot, comm_notify_whynot_general,
+			 "not MSG1 or PROD; unknown dest index");
     return False;
 }
 
diff --git a/util.c b/util.c
index 45e2c93..b413c24 100644
--- a/util.c
+++ b/util.c
@@ -410,6 +410,11 @@ const char *priomsg_getmessage(const struct priomsg *pm, const char *defmsg)
 	return defmsg;
 }
 
+bool_t priomsg_update_fixed(struct priomsg *pm, int prio, const char *m) {
+    if (!priomsg_update_p(pm, prio)) return False;
+    truncmsg_add_string(&pm->m, m);
+    return True;
+}
 
 void buffer_new(struct buffer_if *buf, int32_t len)
 {
diff --git a/util.h b/util.h
index 8971af7..19c99e1 100644
--- a/util.h
+++ b/util.h
@@ -81,6 +81,9 @@ const char *priomsg_getmessage(const struct priomsg *pm, const char *defmsg);
   /* return value is null-terminated, valid until next call
    * or until defmsg is no longer valid                                ZM */
 
+bool_t priomsg_update_fixed(struct priomsg *pm, int prio, const char *m);
+  /* convenience combination of _update_p and truncmsg_add_string */
+
 /*
  * void BUF_ADD_BYTES(append,    struct buffer_if*, const void*, int32_t size);
  * void BUF_ADD_BYTES(prepend,   struct buffer_if*, const void*, int32_t size);
-- 
2.11.0