From f1107b0e17ae524707fc852b4d99c5baefd01161 Mon Sep 17 00:00:00 2001
From: illiliti <illiliti@protonmail.com>
Date: Tue, 18 May 2021 20:15:33 +0300
Subject: [PATCH] contrib/helper.c: minor fixes

Exit with 2 if arguments are invalid.

Compare unneeded environment variables
with '=' delimiter to avoid false positives.
---
 contrib/helper.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/contrib/helper.c b/contrib/helper.c
index 0a45edf..f2f3c50 100644
--- a/contrib/helper.c
+++ b/contrib/helper.c
@@ -33,7 +33,7 @@ int main(int argc, char **argv)
         break;
     default:
         fprintf(stderr, "usage: %s [dir]\n", argv[0]);
-        return 1;
+        return 2;
     }
 
     snprintf(path, sizeof(path), "%s/uevent.XXXXXX", dir);
@@ -45,8 +45,8 @@ int main(int argc, char **argv)
     }
 
     for (i = 0; environ[i]; i++) {
-        if (strncmp(environ[i], "PATH", 4) == 0 ||
-            strncmp(environ[i], "HOME", 4) == 0) {
+        if (strncmp(environ[i], "PATH=", 5) == 0 ||
+            strncmp(environ[i], "HOME=", 5) == 0) {
             continue;
         }