commit b0695de14f4600d2026390fa36b66d7f0544f9fb
author Dmitry V. Levin <ldv@altlinux.org> Mon May 16 22:05:06 2016 +0000
committer Dmitry V. Levin <ldv@altlinux.org> Mon May 16 22:41:19 2016 +0000
tree a4cde25868e79c09caeb8740fbfa0fc7797a28a8
parent 952d89ba5a1f7131d5b722bd1dd0b69955ca6515

Fix printing of invalid struct ifreq.ifr_flags

* sock.c (print_ifreq): Explicitly cast struct ifreq.ifr_flags
to unsigned short to avoid potential sign-extension bug when printing
invalid struct ifreq.ifr_flags.

sock.c

diff --git a/sock.c b/sock.c
index 88a0df5..c948294 100644
--- a/sock.c
+++ b/sock.c
@@ -97,7 +97,7 @@
 	case SIOCSIFFLAGS:
 	case SIOCGIFFLAGS:
 		tprints("ifr_flags=");
-		printflags(iffflags, ifr->ifr_flags, "IFF_???");
+		printflags(iffflags, (unsigned short) ifr->ifr_flags, "IFF_???");
 		break;
 	case SIOCSIFMETRIC:
 	case SIOCGIFMETRIC: