locking.c: Reset alarm state before invoking the target command.

There's nothing worse than grabbing a lock, trying to do something, and
then being killed by an alarm clock midway through.

Well, there are probably are worse things, but this commit message
isn't the right place to list them.

diff --git a/locking.c b/locking.c
index f486ea4302b30aaf7538b876c572471182332b05..8931dbd7dc5d382e0514452232eac703b8c177e2 100644 (file)
--- a/locking.c
+++ b/locking.c
@@ -224,7 +224,9 @@ doneopts:
       errno = 0;
   }
   signal(SIGALRM, oalrm);
-  if (ot) {
+  if (!ot)
+    alarm(0);
+  else {
     nt = time(0) - nt;
     if (nt > ot)
       raise(SIGALRM);