Fix more to not append an extra newline.

More's sigatexit handler needs to distinguish between normal exit and exit
due to receipt of a signal.

Change tty_sigreset to look at the signal number too, so that pressing 'q'
to exit top doesn't cause its exit status to be 128.

2 files changed, 4 insertions, 2 deletions

diff --git a/lib/interestingtimes.c b/lib/interestingtimes.c
index 8337ce8b..62670cbb 100644
--- a/lib/interestingtimes.c
+++ b/lib/interestingtimes.c
@@ -239,5 +239,5 @@ void tty_reset(void)
 void tty_sigreset(int i)
 {
   tty_reset();
-  _exit(128+i);
+  _exit(i ? 128+i : 0);
 }
diff --git a/lib/xwrap.c b/lib/xwrap.c
index 0b1ab8e9..36a601c5 100644
--- a/lib/xwrap.c
+++ b/lib/xwrap.c
@@ -47,7 +47,9 @@ void xexit(void)
   // Call toys.xexit functions in reverse order added.
   while (toys.xexit) {
     // This is typecasting xexit->arg to a function pointer,then calling it.
-    ((void (*)(void))(toys.xexit->arg))();
+    // Using the invalid signal number 0 lets the signal handlers distinguish
+    // an actual signal from a regular exit.
+    ((void (*)(int))(toys.xexit->arg))(0);
 
     free(llist_pop(&toys.xexit));
   }