diff options
Diffstat (limited to 'lib.c')
| -rw-r--r-- | lib.c | 28 |
1 files changed, 27 insertions, 1 deletions
@@ -5,7 +5,7 @@ /*----------------------------------------------------------------------------*/ /*Based on the code of unionfs translator.*/ /*----------------------------------------------------------------------------*/ -/*Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc. +/*Copyright (C) 2001, 2002, 2005, 2008 Free Software Foundation, Inc. Written by Sergiu Ivanov <unlimitedscolobb@gmail.com>. This program is free software; you can redistribute it and/or @@ -28,6 +28,8 @@ #define _GNU_SOURCE 1 /*----------------------------------------------------------------------------*/ #include <sys/mman.h> +#include <fcntl.h> +#include <hurd/fshelp.h> /*----------------------------------------------------------------------------*/ #include "lib.h" #include "debug.h" @@ -191,3 +193,27 @@ file_lookup return err; }/*file_lookup*/ /*----------------------------------------------------------------------------*/ +/*Checks whether `user` has the right to open the node described by `stat` with + `flags`*/ +error_t +check_open_permissions + ( + struct iouser * user, + io_statbuf_t * stat, + int flags + ) + { + error_t err = 0; + + /*Cheks user's permissions*/ + if(flags & O_READ) + err = fshelp_access(stat, S_IREAD, user); + if(!err && (flags & O_WRITE)) + err = fshelp_access(stat, S_IWRITE, user); + if(!err && (flags & O_EXEC)) + err = fshelp_access(stat, S_IEXEC, user); + + /*Return the result of the check*/ + return err; + }/*check_open_permissions*/ +/*----------------------------------------------------------------------------*/ |