Re: [PATCH 1/7] uuidd: use daemon(3) library function

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On Thu, 2011-02-03 at 15:04 +0100, Petr Uzel wrote:
> Signed-off-by: Petr Uzel <petr.uzel@xxxxxxx>
> ---
>  misc-utils/uuidd.c |   19 ++-----------------
>  1 files changed, 2 insertions(+), 17 deletions(-)
> 
> diff --git a/misc-utils/uuidd.c b/misc-utils/uuidd.c
> index 4a230fb..c5c58ae 100644
> --- a/misc-utils/uuidd.c
> +++ b/misc-utils/uuidd.c
> @@ -59,26 +59,11 @@ static void die(const char *msg)
>  
>  static void create_daemon(void)
>  {
> -	pid_t pid;
>  	uid_t euid;
>  
As per standard daemonizing processes (I've not looked over the uuidd
code to see if the program creates files though):

+        umask(0);            	
> -	pid = fork();
> -	if (pid == -1) {
> -		perror("fork");
> -		exit(1);
> -	} else if (pid != 0) {
> -	    exit(0);
> -	}
> -
> -	close(0);
> -	close(1);
> -	close(2);
> -	open("/dev/null", O_RDWR);
> -	open("/dev/null", O_RDWR);
> -	open("/dev/null", O_RDWR);
> +	if (daemon(0,0))
> +		die("daemon");
>  
> -	if (chdir("/")) {}	/* Silence warn_unused_result warning */
> -	(void) setsid();
>  	euid = geteuid();
>  	if (setreuid(euid, euid) < 0)
>  		die("setreuid");


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