From: JingPiao Chen <chenjingpiao@gmail.com>
Date: Fri, 7 Jul 2017 01:10:17 +0000 (+0800)
Subject: netlink: print unrecognized nlmsgerr in hex
X-Git-Tag: v4.19~329
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=dbb622c06113ffe9114c1b89a3d08ab8eb5ceca7;p=strace

netlink: print unrecognized nlmsgerr in hex

* netlink.c (decode_nlmsgerr): Replace printstrn
with printstr_ex and set QUOTE_FORCE_HEX flag.
* tests/netlink_protocol.c (test_nlmsgerr): Update expected output.
---

diff --git a/netlink.c b/netlink.c
index f74c3a07..ca195359 100644
--- a/netlink.c
+++ b/netlink.c
@@ -286,7 +286,7 @@ decode_nlmsgerr(struct tcb *const tcp,
 	struct nlmsgerr err;
 
 	if (len < sizeof(err.error)) {
-		printstrn(tcp, addr, len);
+		printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
 		return;
 	}
 
diff --git a/tests/netlink_protocol.c b/tests/netlink_protocol.c
index eadc14fa..3b4791eb 100644
--- a/tests/netlink_protocol.c
+++ b/tests/netlink_protocol.c
@@ -223,7 +223,8 @@ test_nlmsgerr(const int fd)
 
 	rc = sendto(fd, nlh, NLMSG_HDRLEN + 2, MSG_DONTWAIT, NULL, 0);
 	printf("sendto(%d, {{len=%u, type=NLMSG_ERROR, flags=NLM_F_REQUEST"
-	       ", seq=0, pid=0}, \"42\"}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+	       ", seq=0, pid=0}, \"\\x34\\x32\"}"
+	       ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
 	       fd, NLMSG_HDRLEN + 2, NLMSG_HDRLEN + 2, sprintrc(rc));
 
 	/* error message with room for the error code only */