msghdr: decode SO_RXQ_OVFL control packet

* xlat/scmvals.in (SO_RXQ_OVFL): New constant. * msghdr.c (cmsg_socket_printers) <[SO_RXQ_OVFL]>: New socket option decoder.
strace · Sep 24, 2018 · ef330a8 · ef330a8
1 parent 1090f31
commit ef330a8
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/msghdr.c b/msghdr.c
@@ -228,7 +228,8 @@ static const struct {
 	[SCM_SECURITY] = { print_scm_security, 1 },
 	[SCM_TIMESTAMP] = { print_scm_timestamp, 1 },
 	[SCM_TIMESTAMPNS] = { print_scm_timestampns, 1 },
-	[SCM_TIMESTAMPING] = { print_scm_timestamping, 1 }
+	[SCM_TIMESTAMPING] = { print_scm_timestamping, 1 },
+	[SO_RXQ_OVFL] = { print_cmsg_uint, sizeof(unsigned int) },
 }, cmsg_ip_printers[] = {
 	[IP_PKTINFO] = { print_cmsg_ip_pktinfo, sizeof(struct in_pktinfo) },
 	[IP_TTL] = { print_cmsg_uint, sizeof(unsigned int) },

diff --git a/xlat/scmvals.in b/xlat/scmvals.in
@@ -26,6 +26,14 @@ SCM_TIMESTAMPING 0x0023
 SCM_TIMESTAMPING 37
 #endif
 
+#if defined HPPA
+SO_RXQ_OVFL	0x4021
+#elif defined SPARC || defined SPARC64
+SO_RXQ_OVFL	0x0024
+#else
+SO_RXQ_OVFL	40
+#endif
+
 #if defined HPPA
 SCM_WIFI_STATUS 0x4022
 #elif defined SPARC || defined SPARC64