ash: make "jobs" work even in subshells

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/shell/ash.c b/shell/ash.c
index 3042516..613a66d 100644 (file)
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -4541,8 +4541,11 @@ clear_traps(void)
 static void closescript(void);
 
 /* Called after fork(), in child */
+#if !JOBS
+# define forkchild(jp, n, mode) forkchild(jp, mode)
+#endif
 static void
-forkchild(struct job *jp, /*union node *n,*/ int mode)
+forkchild(struct job *jp, union node *n, int mode)
 {
        int oldlvl;
 
@@ -4598,6 +4601,13 @@ forkchild(struct job *jp, /*union node *n,*/ int mode)
                 * Take care of the second rule: */
                setsignal(SIGQUIT);
        }
+#if JOBS
+       if (n && n->type == NCMD && strcmp(n->ncmd.args->narg.text, "jobs") == 0) {
+               TRACE(("Job hack\n"));
+               freejob(curjob);
+               return;
+       }
+#endif
        for (jp = curjob; jp; jp = jp->prev_job)
                freejob(jp);
        jobless = 0;
@@ -4659,7 +4669,7 @@ forkshell(struct job *jp, union node *n, int mode)
                ash_msg_and_raise_error("can't fork");
        }
        if (pid == 0)
-               forkchild(jp, /*n,*/ mode);
+               forkchild(jp, n, mode);
        else
                forkparent(jp, n, mode, pid);
        return pid;