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smbd: detect EOF on stdin in --foreground mode

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if EOF is detected on stdin then exit
This commit is contained in:
Andrew Tridgell 2011-11-30 14:08:28 +11:00 committed by Andrew Bartlett
parent 645fcc5375
commit 1da318d97d
1 changed files with 25 additions and 0 deletions
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25
source3/smbd/server.c
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@ -857,6 +857,23 @@ static bool open_sockets_smbd(struct smbd_parent_context *parent,
return true;
}
/*
handle stdin becoming readable when we are in --foreground mode
*/
static void smbd_stdin_handler(struct tevent_context *ev,
struct tevent_fd *fde,
uint16_t flags,
void *private_data)
{
char c;
if (read(0, &c, 1) != 1) {
/* we have reached EOF on stdin, which means the
parent has exited. Shutdown the server */
exit_server_cleanly("EOF on stdin");
}
}
static void smbd_parent_loop(struct tevent_context *ev_ctx,
struct smbd_parent_context *parent)
{
@ -1409,6 +1426,14 @@ extern void build_options(bool screen);
/* make sure we always have a valid stackframe */
frame = talloc_stackframe();
if (!Fork) {
/* if we are running in the foreground then look for
EOF on stdin, and exit if it happens. This allows
us to die if the parent process dies
*/
tevent_add_fd(ev_ctx, parent, 0, TEVENT_FD_READ, smbd_stdin_handler, NULL);
}
smbd_parent_loop(ev_ctx, parent);
exit_server_cleanly(NULL);