From caf39c26827f355c4e107f55c5c51f67c484bfd7 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Fri, 16 Nov 2012 00:35:46 -0600
Subject: Add rebound support to intercept error_exit() and longjmp instead.

---
 toys/posix/sh.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'toys/posix/sh.c')

diff --git a/toys/posix/sh.c b/toys/posix/sh.c
index 30900b30..32d05ec2 100644
--- a/toys/posix/sh.c
+++ b/toys/posix/sh.c
@@ -293,12 +293,17 @@ static void run_pipeline(struct pipeline *line)
   // Is this command a builtin that should run in this process?
   if (tl && (tl->flags & TOYFLAG_NOFORK)) {
     struct toy_context temp;
+    jmp_buf rebound;
 
     // This fakes lots of what toybox_main() does.
     memcpy(&temp, &toys, sizeof(struct toy_context));
     memset(&toys, 0, sizeof(struct toy_context));
-    toy_init(tl, cmd->argv);
-    tl->toy_main();
+
+    if (!setjmp(rebound)) {
+      toys.rebound = rebound;
+      toy_init(tl, cmd->argv);
+      tl->toy_main();
+    }
     cmd->pid = toys.exitval;
     free(toys.optargs);
     if (toys.old_umask) umask(toys.old_umask);
-- 
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