Patch from Vladimir N. Oleynik:

On Wed Aug 18, 2004 at 06:52:57PM +0800, Matt Johnston wrote:
> I've come across some strange-seeming behaviour when running programs
> under Busybox (1.0.0-rc3) ash. If the child process sets stdin to be
> non-blocking and then exits, the parent ash will also exit. A quick strace
> shows that a subsequent read() from stdin returns EAGAIN (as would be
> expected):

Thanks!
Patch attached.


--w
vodz

2 files changed, 2 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 6d1dc603c..6c6c28693 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -6062,7 +6062,7 @@ retry:
 			}
 			goto retry;
 		}
-		if(nr < 0) {
+		if(nr < 0 && errno == 0) {
 			/* Ctrl+D presend */
 			nr = 0;
 		}
diff --git a/shell/cmdedit.c b/shell/cmdedit.c
index 25d31a0e0..56b789ab6 100644
--- a/shell/cmdedit.c
+++ b/shell/cmdedit.c
@@ -1297,6 +1297,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ])
 			/* Control-d -- Delete one character, or exit
 			 * if the len=0 and no chars to delete */
 			if (len == 0) {
+					errno = 0;
 prepare_to_die:
 #if !defined(CONFIG_ASH)
 				printf("exit");