From fdfbac03869a0250bcee4b8e9c486490f270aa9c Mon Sep 17 00:00:00 2001
From: Arun Prakash Jana <engineerarun@gmail.com>
Date: Sun, 7 Jun 2020 00:34:46 +0530
Subject: [PATCH] Fix #639: store NNNLVL in tmp var

---
 src/nnn.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/nnn.c b/src/nnn.c
index e822a4c2..e2b02b27 100644
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -6377,11 +6377,12 @@ nochange:
 			case SEL_SHELL:
 				/* Set nnn nesting level */
 				tmp = getenv(env_cfg[NNNLVL]);
-				setenv(env_cfg[NNNLVL], xitoa((tmp ? atoi(tmp) : 0) + 1), 1);
+				r = tmp ? atoi(tmp) : 0;
+				setenv(env_cfg[NNNLVL], xitoa(r + 1), 1);
 
 				setenv(envs[ENV_NCUR], (ndents ? dents[cur].name : ""), 1);
 				spawn(shell, NULL, NULL, F_CLI);
-				setenv(env_cfg[NNNLVL], xitoa(tmp ? atoi(tmp) : 0), 1);
+				setenv(env_cfg[NNNLVL], xitoa(r), 1);
 				r = TRUE;
 				break;
 			case SEL_LAUNCH: