Revisit pty.c functions

Actually the openpty() and forkpty() stubs should return errors, because
otherwise the callee will try to use the amaster and aslave file descriptors
returned by the functions.

Signed-off-by: Costin Lupu <costin.lupu@cs.pub.ro>
Reviewed-by: Felipe Huici <felipe.huici@neclab.eu>

diff --git a/pty.c b/pty.c
index 009688d2327f4918cbe006ede6fb10d7d383352b..07346de9958f4762f98219819b9dfa64143856fc 100644 (file)
--- a/pty.c
+++ b/pty.c
@@ -35,20 +35,23 @@
  * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
  */
 
-#include <pty.h>
-#include <sys/types.h>
 #include <uk/essentials.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <pty.h>
 
 int openpty(int *amaster __unused, int *aslave __unused, char *name __unused,
                const struct termios *termp __unused,
                const struct winsize *winp __unused)
 {
-       return 0;
+       errno = ENOENT;
+       return -1;
 }
 
 pid_t forkpty(int *amaster __unused, char *name __unused,
                const struct termios *termp __unused,
                const struct winsize *winp __unused)
 {
-       return 0;
+       errno = ENOENT;
+       return -1;
 }