error out early on crypt() fail

diff --git a/slock.c b/slock.c
index 6dedc69944ca49e43104f4a81513448e0e9a0af0..2d57e81ae4c163750a212c03ef00d46aad0fa525 100644 (file)
--- a/slock.c
+++ b/slock.c
@@ -321,8 +321,9 @@ main(int argc, char **argv) {
 #endif
 
        hash = gethash();
-       if (strlen(hash) < 2)
-               die("slock: failed to get user password hash.\n");
+       errno = 0;
+       if (!crypt("", hash))
+               die("slock: crypt: %s\n", strerror(errno));
 
        if (!(dpy = XOpenDisplay(NULL)))
                die("slock: cannot open display\n");