Move the initialization of push_dir, which calls getcwd, to early in main.

The reason for that is that on SVR2-based UTS 2.1.2 (which along with many
other old systems implements getcwd by forking "pwd") getcwd hangs when
called when other child processes are running.

I also added a quick return from push_dir if name == NULL so it doesn't
actually have to chdir anywhere when just initializing.

An initializing call to push_dir("/",0) had previously been put in at the
beginning of daemon_main() to avoid calling getcwd after a chroot, but
since that is no longer I needed I removed it and changed the call to
chdir("/") after chroot into a push_dir("/",0) so it will remember the
correct current directory.

1 files changed, 2 insertions, 0 deletions

diff --git a/util.c b/util.c
index cadf3ebf..16d8f6cc 100644
--- a/util.c
+++ b/util.c
@@ -638,6 +638,8 @@ char *push_dir(char *dir, int save)
 		getcwd(curr_dir, sizeof(curr_dir)-1);
 	}
 
+	if (!dir) return NULL; /* this call was probably just to initialize */
+
 	if (chdir(dir)) return NULL;
 
 	if (save) {