1 files changed, 7 insertions, 0 deletions

diff --git a/archival/cpio.c b/archival/cpio.c
index f0d990048..b033b3733 100644
--- a/archival/cpio.c
+++ b/archival/cpio.c
@@ -350,6 +350,12 @@ static NOINLINE int cpio_o(void)
                         st.st_dev = st.st_rdev = 0;
 #endif
 
+                if (sizeof(st.st_size) > 4
+                 && st.st_size > (off_t)0xffffffff
+                ) {
+                        bb_error_msg_and_die("error: file '%s' is larger than 4GB", name);
+                }
+
                 bytes += printf("070701"
                                 "%08X%08X%08X%08X%08X%08X%08X"
                                 "%08X%08X%08X%08X" /* GNU cpio uses uppercase hex */
@@ -421,6 +427,7 @@ int cpio_main(int argc UNUSED_PARAM, char **argv)
 #endif
 #endif
                 "owner\0"        Required_argument "R"
+                "file\0"         Required_argument "F"
                 "verbose\0"      No_argument       "v"
                 "null\0"         No_argument       "0"
                 "quiet\0"        No_argument       "\xff"