error out early on crypt() fail

1 files changed, 3 insertions, 2 deletions

diff --git a/slock.c b/slock.c
index 6dedc69..2d57e81 100644
--- 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");