From 409293eb09480ad5a1857496e0ad8147e2576057 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 23 Oct 2008 07:16:20 +0000
Subject: * ext/socket/socket.c (sock_s_getservbyport): check if the port
 range.   [ruby-core:19460]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19898 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/socket/socket.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'ext/socket')

diff --git a/ext/socket/socket.c b/ext/socket/socket.c
index a47c6d47df..09abc88c18 100644
--- a/ext/socket/socket.c
+++ b/ext/socket/socket.c
@@ -3254,6 +3254,10 @@ sock_s_getservbyport(int argc, VALUE *argv)
 
     rb_scan_args(argc, argv, "11", &port, &proto);
     portnum = NUM2LONG(port);
+    if (portnum != (uint16_t)portnum) {
+	const char *s = portnum > 0 ? "big" : "small";
+	rb_raise(rb_eRangeError, "integer %ld too %s to convert into `int16_t'", portnum, s);
+    }
     if (!NIL_P(proto)) protoname = StringValueCStr(proto);
 
     sp = getservbyport((int)htons((uint16_t)portnum), protoname);
-- 
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