[Xen-changelog] [xen-unstable] Stubdom: add support for file creation.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1205839581 0
# Node ID 1eae3adc5bf7e9cfcf0cf363bf553bc075ec7390
# Parent  1efc81ab19cde25e0ba9436dd5c0bb9866be1730
Stubdom: add support for file creation.

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

diff -r 1efc81ab19cd -r 1eae3adc5bf7 extras/mini-os/include/fcntl.h
--- a/extras/mini-os/include/fcntl.h    Tue Mar 18 11:15:20 2008 +0000
+++ b/extras/mini-os/include/fcntl.h    Tue Mar 18 11:26:21 2008 +0000
@@ -1,5 +1,9 @@
 #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 */
@@ -90,3 +94,5 @@ int open(const char *path, int flags, ..
 int open(const char *path, int flags, ...);
 int fcntl(int fd, int cmd, ...);
 #endif
+
+#endif
diff -r 1efc81ab19cd -r 1eae3adc5bf7 extras/mini-os/lib/sys.c
--- a/extras/mini-os/lib/sys.c  Tue Mar 18 11:15:20 2008 +0000
+++ b/extras/mini-os/lib/sys.c  Tue Mar 18 11:26:21 2008 +0000
@@ -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;

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