From 2f0b0c5eb22ac64fe6e394aa438aece740f6f802 Mon Sep 17 00:00:00 2001
From: Keir Fraser <keir.fraser@citrix.com>
Date: Tue, 18 Mar 2008 11:26:21 +0000
Subject: [PATCH] Stubdom: add support for file creation.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
---
 include/fcntl.h |  6 ++++++
 lib/sys.c       | 22 ++++++++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/include/fcntl.h b/include/fcntl.h
index 34a6484..0615790 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -1,6 +1,10 @@
 #ifndef _I386_FCNTL_H
 #define _I386_FCNTL_H
 
+#ifdef HAVE_LIBC
+#include_next <fcntl.h>
+#else
+
 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
    located on an ext2 file system */
 #define O_ACCMODE	   0003
@@ -90,3 +94,5 @@ struct flock64 {
 int open(const char *path, int flags, ...);
 int fcntl(int fd, int cmd, ...);
 #endif
+
+#endif
diff --git a/lib/sys.c b/lib/sys.c
index 13096d1..3e325b1 100644
--- a/lib/sys.c
+++ b/lib/sys.c
@@ -171,8 +171,26 @@ int open(const char *pathname, int flags, ...)
         printk("open(%s) -> %d\n", pathname, fd);
         return fd;
     }
-    printk("open(%s)", pathname);
-    fs_fd = fs_open(fs_import, (void *) pathname);
+    printk("open(%s, %x)", pathname, flags);
+    switch (flags & ~O_ACCMODE) {
+        case 0:
+            fs_fd = fs_open(fs_import, (void *) pathname);
+            break;
+        case O_CREAT|O_TRUNC:
+        {
+            va_list ap;
+            mode_t mode;
+            va_start(ap, flags);
+            mode = va_arg(ap, mode_t);
+            va_end(ap);
+            fs_fd = fs_create(fs_import, (void *) pathname, 0, mode);
+            break;
+        }
+        default:
+            printk(" unsupported flags\n");
+            stack_walk();
+            do_exit();
+    }
     if (fs_fd < 0) {
 	errno = EIO;
 	return -1;
-- 
2.39.5