POTD skeleton #74.

Signed-off-by: lns <matzeton@googlemail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/jail.c b/src/jail.c
index 3f77dfd..3a93f3b 100644
--- a/src/jail.c
+++ b/src/jail.c
@@ -91,6 +91,12 @@ int jail_validate_ctx(const jail_ctx *ctx)
     assert(ctx);
     assert(ctx->fwd_ctx.sock.addr_len > 0);
     assert(ctx->stack_ptr);
+    assert(ctx->newroot);
+
+    if (access(ctx->newroot, R_OK|X_OK)) {
+        E_STRERR("new root directory access to '%s'", ctx->newroot);
+        return 1;
+    }
 
     return 0;
 }