cp: by popular demand, make it POSIX compliant (but less safe)

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

1 files changed, 10 insertions, 0 deletions

diff --git a/libbb/Config.in b/libbb/Config.in
index a572775c9..9b616d1af 100644
--- a/libbb/Config.in
+++ b/libbb/Config.in
@@ -114,6 +114,16 @@ config FEATURE_EDITING_ASK_TERMINAL
           correctly, or want to save on code size (about 300 bytes),
           then do not turn this option on.
 
+config FEATURE_NON_POSIX_CP
+        bool "Non-POSIX, but safer, copying to special nodes"
+        default y
+        help
+          With this option, "cp file symlink" will delete symlink
+          and create a regular file. This does not conform to POSIX,
+          but prevents a symlink attack.
+          Similarly, "cp file device" will not send file's data
+          to the device.
+
 config FEATURE_VERBOSE_CP_MESSAGE
         bool "Give more precise messages when copy fails (cp, mv etc)"
         default n