slock

commit 2c492d4623819cedd1347ca762f299db5e940cfa
parent 163cf4eecb0a746d6c080e57fec4035eb6e7f9eb
Author: sin <sin@2f30.org>
Date:   Wed,  9 Jul 2014 14:40:49 +0100

Only check errno if getpwuid() fails

Checking errno otherwise is unspecified.

Diffstat:
M
slock.c
 | 
10
++++++----

1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/slock.c b/slock.c
@@ -67,10 +67,12 @@ getpw(void) { /* only run as root */
 
 	errno = 0;
 	pw = getpwuid(getuid());
-	if (errno)
-		die("slock: getpwuid: %s\n", strerror(errno));
-	else if (!pw)
-		die("slock: cannot retrieve password entry (make sure to suid or sgid slock)\n");
+	if (!pw) {
+		if (errno)
+			die("slock: getpwuid: %s\n", strerror(errno));
+		else
+			die("slock: cannot retrieve password entry (make sure to suid or sgid slock)\n");
+	}
 	endpwent();
 	rval =  pw->pw_passwd;