nuttx

History

fangxinyong 903e87a7bd builtin: support uid/gid config for binfs app Implement I_SUID/I_SGID feature for binfs in the POSIX compliant way. If set-user-ID bit is set in the file permissions, then the effective user ID of process shall be set to UID of the new process image file. test case: hello example emulates to set uid and file set-user-ID bit, and call geteuid and getegid API. UID = 2000 GID = 3000 MODE = 06555 nsh> ls -l /bin/hello -r-sr-sr-x 2000 3000 0 hello nsh> hello geteuid:2000 getegid:3000 Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>		2023-08-14 01:37:00 +08:00
..
CMakeLists.txt	build: add initial cmake build system	2023-07-08 13:50:48 +08:00
fs_binfs.c	builtin: support uid/gid config for binfs app	2023-08-14 01:37:00 +08:00
Kconfig
Make.defs
README.txt

README.txt

fs/binfs README
================

  This is the binfs file system that allows "fake" execution of NSH built-
  in applications via the file system.  The binfs fs file system can be
  built into the system by enabling:

    CONFIG_BUILTIN=y
    CONFIG_FS_BINFS=y

  It can then be mounted from the NSH command like like:

   mount -t binfs /bin

Example
=======

  NuttShell (NSH) NuttX-6.31
  nsh> hello
  nsh: hello: command not found

  nsh> mount -t binfs /bin
  nsh> ls /bin
  ls /bin
  /bin:
   hello

  nsh> /bin/hello
  Hello, World!!