[BusyBox] Re: busybox-cvs Digest, Vol 2, Issue 13

[Vladimir N. Oleynik]

Erik,

> Update of /var/cvs/busybox/libbb
> In directory winder:/tmp/cvs-serv12876/libbb
> 
> Modified Files:
> 	run_parts.c 
> Log Message:
> This was doing some silly stuff that is not necessary when using
> vfork(), so I have simplified it.
> 
> 
> Index: run_parts.c
> ===================================================================
> RCS file: /var/cvs/busybox/libbb/run_parts.c,v
> retrieving revision 1.6
> retrieving revision 1.7
> diff -u -d -r1.6 -r1.7
> --- run_parts.c	19 Mar 2003 09:12:08 -0000	1.6
> +++ run_parts.c	26 May 2003 18:12:00 -0000	1.7
> @@ -83,31 +83,37 @@
>  			if (test_mode & 1) {
>  				puts(filename);
>  			} else {
> -				/* exec_errno is common vfork variable */
> -				volatile int exec_errno = 0;
> +				pid_t pid, wpid;
>  				int result;
> -				int pid;
>  
>  				if ((pid = vfork()) < 0) {
>  					bb_perror_msg_and_die("failed to fork");
> -				} else if (!pid) {
> -					args[0] = filename;
> +				} else if (pid==0) {
>  					execv(filename, args);
> -					exec_errno = errno;
>  					_exit(1);
>  				}
>  
> -				waitpid(pid, &result, 0);
> -				if(exec_errno) {
> -					errno = exec_errno;
> -					bb_perror_msg_and_die("failed to exec %s", filename);
> -				}

Why? :-0
I use this trick for can show:
("failed exec with %s", streerror(errno))


--w
vodz