From 083214c90d93768e4628d7e0e4d56c54908aa49a Mon Sep 17 00:00:00 2001
From: "Alan T. DeKok" <aland@freeradius.org>
Date: Wed, 8 Feb 2017 13:32:09 -0500
Subject: Check conf->sockfd against FD_SETSIZE.  Fixes #24

---
 src/pam_radius_auth.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src')

diff --git a/src/pam_radius_auth.c b/src/pam_radius_auth.c
index 0db57d5..f3a4326 100644
--- a/src/pam_radius_auth.c
+++ b/src/pam_radius_auth.c
@@ -618,6 +618,14 @@ static int initialize(radius_conf_t *conf, int accounting)
 		return PAM_AUTHINFO_UNAVAIL;
 	}
 
+#ifndef HAVE_POLL_H
+	if (conf->sockfd >= FD_SETSIZE) {
+		_pam_log(LOG_ERR, "Unusable socket, FD is larger than %d\n", FD_SETSIZE);
+		close(conf->sockfd);
+		return PAM_AUTHINFO_UNAVAIL;
+	}
+#endif
+
 	/* set up the local end of the socket communications */
 	s_in = (struct sockaddr_in *) &salocal;
 	memset ((char *) s_in, '\0', sizeof(struct sockaddr));
-- 
cgit v1.2.3