From 5b1b77ba950f5de7337bf1eb18637630a55d4dc5 Mon Sep 17 00:00:00 2001
From: Tanguy Pruvot <tanguy.pruvot@gmail.com>
Date: Thu, 29 Mar 2018 02:26:37 +0200
Subject: [PATCH] api: fix possible issue on linux

---
 api.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/api.cpp b/api.cpp
index 87d3095..9014f3a 100644
--- a/api.cpp
+++ b/api.cpp
@@ -1252,7 +1252,7 @@ static void api()
 			char *wskey = NULL;
 			n = recv(c, &buf[0], SOCK_REC_BUFSZ, 0);
 
-			fail = SOCKETFAIL(n);
+			fail = SOCKETFAIL(n) || n < 0;
 			if (fail)
 				buf[0] = '\0';
 			else if (n > 0 && buf[n-1] == '\n') {
@@ -1261,7 +1261,7 @@ static void api()
 				if (n > 0 && buf[n-1] == '\r')
 					buf[n-1] = '\0';
 			}
-			buf[n] = '\0';
+			else buf[n] = '\0';
 
 			//if (opt_debug && opt_protocol && n > 0)
 			//	applog(LOG_DEBUG, "API: recv command: (%d) '%s'+char(%x)", n, buf, buf[n-1]);