[hackers] [ubase] Use *_FILENO instead of hardcoding constants || sin

From: <git_AT_suckless.org>
Date: Mon, 14 Apr 2014 12:23:01 +0200

commit 4d7091cae915b64e0c9d9dce6d45a5ed3e4dd622
Author: sin <sin_AT_2f30.org>
Date: Mon Apr 14 11:22:28 2014 +0100

    Use *_FILENO instead of hardcoding constants

diff --git a/switch_root.c b/switch_root.c
index afbe328..b61a3a0 100644
--- a/switch_root.c
+++ b/switch_root.c
_AT_@ -110,16 +110,13 @@ main(int argc, char **argv)
 
         /* if -c is set, redirect stdin/stdout/stderr to console */
         if (console) {
- close(0);
- if(open(console, O_RDWR) == -1){
+ close(STDIN_FILENO);
+ if(open(console, O_RDWR) == -1)
                         eprintf("open %s:", console);
- }
- if (dup2(0,1) == -1){
+ if (dup2(STDIN_FILENO, STDOUT_FILENO) != STDOUT_FILENO)
                         eprintf("dup2 %s:", "0,1");
- }
- if (dup2(0,2) == -1){
+ if (dup2(STDIN_FILENO, STDERR_FILENO) != STDERR_FILENO)
                         eprintf("dup2 %s:", "0,2");
- }
         }
 
         /* execute init */
Received on Mon Apr 14 2014 - 12:23:01 CEST