libbb: introduce and use xmalloc_ttyname (-32 in bss).
ash: small code shrink
text data bss dec hex filename
793669 504 7524 801697 c3ba1 busybox_old
793659 504 7492 801655 c3b77 busybox_unstripped
diff --git a/init/mesg.c b/init/mesg.c
index cfb517f..ca230f3 100644
--- a/init/mesg.c
+++ b/init/mesg.c
@@ -25,7 +25,7 @@
if (--argc == 0
|| (argc == 1 && ((c = **++argv) == 'y' || c == 'n'))
) {
- tty = ttyname(STDERR_FILENO);
+ tty = xmalloc_ttyname(STDERR_FILENO);
if (tty == NULL) {
tty = "ttyname";
} else if (stat(tty, &sb) == 0) {