devsw

checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works

1 files changed, 7 insertions, 2 deletions

diff --git a/syscall.c b/syscall.c
index ce6e22d..f0f2cc2 100644
--- a/syscall.c
+++ b/syscall.c
@@ -271,8 +271,13 @@ sys_open(void)
 
   iunlock(ip);
   fd->type = FD_FILE;
-  fd->readable = 1;
-  fd->writeable = 0;
+  if (arg1) {
+    fd->readable = 1;
+    fd->writeable = 1;
+  } else {
+    fd->readable = 1;
+    fd->writeable = 0;
+  }
   fd->ip = ip;
   fd->off = 0;
   cp->fds[ufd] = fd;