From 50d320777a47132f07eb4e6707b7247f8db8861a Mon Sep 17 00:00:00 2001
From: Elliott Hughes <enh@google.com>
Date: Wed, 14 Jan 2015 03:43:49 -0600
Subject: i found a few problems while manually smoke testing toybox chown
 versus toolbox (NetBSD) chown...

new test:

and here's the patch to fix "owner:" ":group" and the ":" special case:
---
 toys/posix/chgrp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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

diff --git a/toys/posix/chgrp.c b/toys/posix/chgrp.c
index dc7741bc..556b0f19 100644
--- a/toys/posix/chgrp.c
+++ b/toys/posix/chgrp.c
@@ -77,6 +77,8 @@ void chgrp_main(void)
   int ischown = toys.which->name[2] == 'o', hl = toys.optflags&(FLAG_H|FLAG_L);
   char **s, *own;
 
+  TT.owner = TT.group = -1;
+
   // Distinguish chown from chgrp
   if (ischown) {
     char *grp;
@@ -97,7 +99,7 @@ void chgrp_main(void)
     }
   } else TT.group_name = *toys.optargs;
 
-  if (TT.group_name) {
+  if (TT.group_name && *TT.group_name) {
     struct group *g;
     g = getgrnam(TT.group_name);
     if (!g) g=getgrgid(atoi(TT.group_name));
-- 
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