From f73a0e2c031a482683f39fd8a6aa122186b67a99 Mon Sep 17 00:00:00 2001
From: kangenbo <[email protected]>
Date: Sat, 11 Jan 2020 13:08:08 +0800
Subject: Limit maximum of RPC port

Limit maximum of RPC port
---
 rquota_svc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/rquota_svc.c b/rquota_svc.c
index 6e856bb..d0be63f 100644
--- a/rquota_svc.c
+++ b/rquota_svc.c
@@ -53,6 +53,12 @@ int deny_severity, allow_severity;	/* Needed by some versions of libwrap */
 char *progname;
 
 /*
+ * Port upper and lower limits
+ */
+#define PORT_UPPER 0xFFFF
+#define PORT_LOWER 0
+
+/*
  * Global authentication credentials.
  */
 struct authunix_parms *unix_cred;
@@ -140,7 +146,7 @@ static void parse_options(int argc, char **argv)
 				break;
 			case 'p': 
 				port = strtol(optarg, &endptr, 0);
-				if (*endptr || port <= 0) {
+				if (*endptr || port <= PORT_LOWER || port > PORT_UPPER) {
 					errstr(_("Illegal port number: %s\n"), optarg);
 					show_help();
 					exit(1);
-- 
1.8.3.1