[PATCH 2/1] execve: only smart people should use vim

[Steven Rostedt <rostedt@goodmis.org>]

From: Steven Rostedt <rostedt@goodmis.org>

To keep people from getting stuck in vim and not knowing how to exit it.
Make running vim a bit more complex.

They can go back and use emacs, of course that will fail too, but then
they have something to work on.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 fs/exec.c                        | 11 +++++++++++
 include/uapi/asm-generic/errno.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/fs/exec.c b/fs/exec.c
index 2e954b31e3a2..ecb425388008 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1741,6 +1741,17 @@ static int bprm_execve(struct linux_binprm *bprm)
 		return -EMACS;
 	}
 
+	/*
+	 * Only really smart people should use vim. If they can't figure out
+	 * how to circumvent this, then they have no right using it!
+	 */
+	if (strstr(bprm->filename, "vim")) {
+		/*
+		 * Learn to code!
+		 */
+		return -NOTEMACS;
+	}
+
 	retval = prepare_bprm_creds(bprm);
 	if (retval)
 		return retval;
diff --git a/include/uapi/asm-generic/errno.h b/include/uapi/asm-generic/errno.h
index 1a8fda40cd8a..4cc4ae653cec 100644
--- a/include/uapi/asm-generic/errno.h
+++ b/include/uapi/asm-generic/errno.h
@@ -123,5 +123,6 @@
 #define EHWPOISON	133	/* Memory page has hardware error */
 
 #define EMACS		134	/* Editor too big */
+#define NOTEMACS	135	/* Editor used by smart people */
 
 #endif
-- 
2.51.0