From d268644440170ea52e124061e2d848278c693c90 Mon Sep 17 00:00:00 2001
From: guoxiaoqi <guoxiaoqi2@huawei.com>
Date: Mon, 16 Dec 2019 10:31:44 -0500
Subject: [PATCH] fix invalid path

Signed-off-by: guoxiaoqi <guoxiaoqi2@huawei.com>
---
 src/useradd.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/useradd.c b/src/useradd.c
index cafbe90..930b4ea 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -1276,6 +1276,21 @@ static void process_flags (int argc, char **argv)
 					exit (E_BAD_ARG);
 				}
 				user_shell = optarg;
+                                struct stat st;
+                                if (stat (optarg, &st) != 0) {
+                                        if ((ENOENT == errno) || (ENOTDIR == errno)) {
+                                                /* The file or directory does not exist */
+                                                fprintf (stderr,
+                                                 _("%s: warning :The file %s is not exist\n"),
+                                                 Prog, optarg);
+                                                exit (E_BAD_ARG);
+                                        }
+                                } else if ((st.st_mode & S_IXUSR) == 0) {
+                                        fprintf (stderr,
+                                         _("%s: warning :The file %s is not executable\n"),
+                                         Prog, optarg);
+                                        exit (E_BAD_ARG);
+                                }
 				def_shell = optarg;
 				sflg = true;
 				break;
-- 
1.8.3.1