From 6339042cb9c16dcf0efedc382666f4cbff22be18 Mon Sep 17 00:00:00 2001
From: Mark Stapp <mjs@voltanet.io>
Date: Mon, 4 Feb 2019 14:33:06 -0500
Subject: libs: use const in some interface flag accessors

Use const in several interface struct flag accessors (that just
test flags.)

Signed-off-by: Mark Stapp <mjs@voltanet.io>
---
 lib/if.c | 20 ++++++++++----------
 lib/if.h | 20 ++++++++++----------
 2 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/lib/if.c b/lib/if.c
index a31b44c7d..0e16a040b 100644
--- a/lib/if.c
+++ b/lib/if.c
@@ -436,13 +436,13 @@ void if_set_index(struct interface *ifp, ifindex_t ifindex)
 }
 
 /* Does interface up ? */
-int if_is_up(struct interface *ifp)
+int if_is_up(const struct interface *ifp)
 {
 	return ifp->flags & IFF_UP;
 }
 
 /* Is interface running? */
-int if_is_running(struct interface *ifp)
+int if_is_running(const struct interface *ifp)
 {
 	return ifp->flags & IFF_RUNNING;
 }
@@ -450,7 +450,7 @@ int if_is_running(struct interface *ifp)
 /* Is the interface operative, eg. either UP & RUNNING
    or UP & !ZEBRA_INTERFACE_LINK_DETECTION and
    if ptm checking is enabled, then ptm check has passed */
-int if_is_operative(struct interface *ifp)
+int if_is_operative(const struct interface *ifp)
 {
 	return ((ifp->flags & IFF_UP)
 		&& (((ifp->flags & IFF_RUNNING)
@@ -461,7 +461,7 @@ int if_is_operative(struct interface *ifp)
 
 /* Is the interface operative, eg. either UP & RUNNING
    or UP & !ZEBRA_INTERFACE_LINK_DETECTION, without PTM check */
-int if_is_no_ptm_operative(struct interface *ifp)
+int if_is_no_ptm_operative(const struct interface *ifp)
 {
 	return ((ifp->flags & IFF_UP)
 		&& ((ifp->flags & IFF_RUNNING)
@@ -470,7 +470,7 @@ int if_is_no_ptm_operative(struct interface *ifp)
 }
 
 /* Is this loopback interface ? */
-int if_is_loopback(struct interface *ifp)
+int if_is_loopback(const struct interface *ifp)
 {
 	/* XXX: Do this better, eg what if IFF_WHATEVER means X on platform M
 	 * but Y on platform N?
@@ -479,12 +479,12 @@ int if_is_loopback(struct interface *ifp)
 }
 
 /* Check interface is VRF */
-int if_is_vrf(struct interface *ifp)
+int if_is_vrf(const struct interface *ifp)
 {
 	return CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK);
 }
 
-bool if_is_loopback_or_vrf(struct interface *ifp)
+bool if_is_loopback_or_vrf(const struct interface *ifp)
 {
 	if (if_is_loopback(ifp) || if_is_vrf(ifp))
 		return true;
@@ -493,19 +493,19 @@ bool if_is_loopback_or_vrf(struct interface *ifp)
 }
 
 /* Does this interface support broadcast ? */
-int if_is_broadcast(struct interface *ifp)
+int if_is_broadcast(const struct interface *ifp)
 {
 	return ifp->flags & IFF_BROADCAST;
 }
 
 /* Does this interface support broadcast ? */
-int if_is_pointopoint(struct interface *ifp)
+int if_is_pointopoint(const struct interface *ifp)
 {
 	return ifp->flags & IFF_POINTOPOINT;
 }
 
 /* Does this interface support multicast ? */
-int if_is_multicast(struct interface *ifp)
+int if_is_multicast(const struct interface *ifp)
 {
 	return ifp->flags & IFF_MULTICAST;
 }
diff --git a/lib/if.h b/lib/if.h
index 6689769be..d26d4dd68 100644
--- a/lib/if.h
+++ b/lib/if.h
@@ -499,16 +499,16 @@ extern void if_delete_retain(struct interface *);
    deletes it from the interface list and frees the structure. */
 extern void if_delete(struct interface *);
 
-extern int if_is_up(struct interface *);
-extern int if_is_running(struct interface *);
-extern int if_is_operative(struct interface *);
-extern int if_is_no_ptm_operative(struct interface *);
-extern int if_is_loopback(struct interface *);
-extern int if_is_vrf(struct interface *ifp);
-extern bool if_is_loopback_or_vrf(struct interface *ifp);
-extern int if_is_broadcast(struct interface *);
-extern int if_is_pointopoint(struct interface *);
-extern int if_is_multicast(struct interface *);
+extern int if_is_up(const struct interface *ifp);
+extern int if_is_running(const struct interface *ifp);
+extern int if_is_operative(const struct interface *ifp);
+extern int if_is_no_ptm_operative(const struct interface *ifp);
+extern int if_is_loopback(const struct interface *ifp);
+extern int if_is_vrf(const struct interface *ifp);
+extern bool if_is_loopback_or_vrf(const struct interface *ifp);
+extern int if_is_broadcast(const struct interface *ifp);
+extern int if_is_pointopoint(const struct interface *ifp);
+extern int if_is_multicast(const struct interface *ifp);
 struct vrf;
 extern void if_terminate(struct vrf *vrf);
 extern void if_dump_all(void);
-- 
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