r23819: It is currently unnecessary to pass the extended validation status

from the validating child process down to the parent though the
pipe. All the parent evaluates is the overall success, so the exit
status should do.

Michael
(This used to be commit 9415ea0fde2ff0c801d043ce77b778fceedb6592)

1 files changed, 10 insertions, 42 deletions

diff --git a/source3/lib/util_tdb.c b/source3/lib/util_tdb.c
index 338a0fabdb..65ecb1759d 100644
--- a/source3/lib/util_tdb.c
+++ b/source3/lib/util_tdb.c
@@ -989,8 +989,7 @@ NTSTATUS map_nt_error_from_tdb(enum TDB_ERROR err)
  * internal validation function, executed by the child.  
  */
 static int tdb_validate_child(const char *tdb_path,
-			      tdb_validate_data_func validate_fn,
-			      int pfd)
+			      tdb_validate_data_func validate_fn)
 {
 	int ret = -1;
 	int num_entries = 0;
@@ -1047,9 +1046,12 @@ out:
 		tdb_close(tdb);
 	}
 
-	DEBUG(10, ("tdb_validate_child: writing status to pipe\n"));
-	write (pfd, (const char *)&v_status, sizeof(v_status));
-	close(pfd);
+	DEBUG(10,    ("tdb_validate_child: summary of validation status:\n"));
+	DEBUGADD(10, (" *  tdb error: %s\n", v_status.tdb_error ? "yes" : "no"));
+	DEBUGADD(10, (" *  bad freelist: %s\n", v_status.bad_freelist ? "yes" : "no"));
+	DEBUGADD(10, (" *  bad entry: %s\n", v_status.bad_entry ? "yes" : "no"));
+	DEBUGADD(10, (" *  unknown key: %s\n", v_status.unknown_key ? "yes" : "no"));
+	DEBUGADD(10, (" => overall success: %s\n", v_status.success ? "yes" : "no"));
 
 	return ret;
 }
@@ -1060,29 +1062,19 @@ int tdb_validate(const char *tdb_path, tdb_validate_data_func validate_fn)
 	int child_status = 0;
 	int wait_pid = 0;
 	int ret = -1;
-	int pipe_fds[2];
-	struct tdb_validation_status v_status;
-	int bytes_read = 0;
 
 	/* fork and let the child do the validation.
 	 * benefit: no need to twist signal handlers and panic functions.
-	 * just let the child panic. we catch the signal.
-	 * communicate the extended status struct over a pipe. */
-
-	if (pipe(pipe_fds) != 0) {
-		DEBUG(0, ("tdb_validate: unable to create pipe, "
-			  "error %s", strerror(errno)));
-		smb_panic("tdb_validate: unable to create pipe.");
-	}
+	 * just let the child panic. we catch the signal. */
 
 	DEBUG(10, ("tdb_validate: forking to let child do validation.\n"));
 	child_pid = sys_fork();
 	if (child_pid == 0) {
+		/* child code */
 		DEBUG(10, ("tdb_validate (validation child): created\n"));
-		close(pipe_fds[0]); /* close reading fd */
 		DEBUG(10, ("tdb_validate (validation child): "
 			   "calling tdb_validate_child\n"));
-		exit(tdb_validate_child(tdb_path, validate_fn, pipe_fds[1]));
+		exit(tdb_validate_child(tdb_path, validate_fn));
 	}
 	else if (child_pid < 0) {
 		smb_panic("tdb_validate: fork for validation failed.");
@@ -1092,30 +1084,6 @@ int tdb_validate(const char *tdb_path, tdb_validate_data_func validate_fn)
 
 	DEBUG(10, ("tdb_validate: fork succeeded, child PID = %d\n",
 		   child_pid));
-	close(pipe_fds[1]); /* close writing fd */
-
-	v_status.success = True;
-	v_status.bad_entry = False;
-	v_status.unknown_key = False;
-
-	DEBUG(10, ("tdb_validate: reading from pipe.\n"));
-	bytes_read = read(pipe_fds[0], (void *)&v_status, sizeof(v_status));
-	close(pipe_fds[0]);
-
-	if (bytes_read != sizeof(v_status)) {
-		DEBUG(10, ("tdb_validate: read %d bytes from pipe "
-			   "but expected %d", bytes_read, (int)sizeof(v_status)));
-		DEBUGADD(10, (" -> assuming child crashed\n"));
-		v_status.success = False;
-	}
-	else {
-		DEBUG(10,    ("tdb_validate: read status from child\n"));
-		DEBUGADD(10, (" *  tdb error: %s\n", v_status.tdb_error ? "yes" : "no"));
-		DEBUGADD(10, (" *  bad freelist: %s\n", v_status.bad_freelist ? "yes" : "no"));
-		DEBUGADD(10, (" *  bad entry: %s\n", v_status.bad_entry ? "yes" : "no"));
-		DEBUGADD(10, (" *  unknown key: %s\n", v_status.unknown_key ? "yes" : "no"));
-		DEBUGADD(10, (" => overall success: %s\n", v_status.success ? "yes" : "no"));
-	}
 
 	DEBUG(10, ("tdb_validate: waiting for child to finish...\n"));
 	while  ((wait_pid = sys_waitpid(child_pid, &child_status, 0)) < 0) {