Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / openbios / fs / ext2 / ext2_open.c

diff --git a/qemu/roms/openbios/fs/ext2/ext2_open.c b/qemu/roms/openbios/fs/ext2/ext2_open.c
new file mode 100644 (file)
index 0000000..03a89bb
--- /dev/null
+++ b/qemu/roms/openbios/fs/ext2/ext2_open.c
@@ -0,0 +1,65 @@
+/*
+ *
+ * (c) 2008-2009 Laurent Vivier <Laurent@lvivier.info>
+ *
+ * This file has been copied from EMILE, http://emile.sf.net
+ *
+ */
+
+#include "libext2.h"
+#include "ext2.h"
+#include "ext2_utils.h"
+
+ext2_FILE* ext2_open(ext2_VOLUME *volume, const char* pathname)
+{
+       ext2_FILE *file;
+       struct ext2_inode *inode;
+       int ino;
+       int ret;
+
+       ino = ext2_seek_name(volume, pathname);
+       if (ino == 0)
+               return NULL;
+
+       inode = (struct ext2_inode*)malloc(sizeof(struct ext2_inode));
+       if (inode == NULL)
+               return NULL;
+
+       ret = ext2_get_inode(volume, ino, inode);
+       if (ret == -1) {
+               free(inode);
+               return NULL;
+       }
+       if (S_ISLNK(inode->i_mode)) {
+               static char buffer[1024];
+               int i, last = 0;
+               strcpy(buffer, pathname);
+               for (i = 0; buffer[i]; i++)
+                       if (buffer[i] == '\\')
+                               last = i;
+               buffer[last] = '\\';
+               strcpy(buffer + last + 1, (char*)inode->i_block);
+               ino = ext2_seek_name((ext2_VOLUME*)volume, buffer);
+               if (ino == 0) {
+                       free(inode);
+                       return NULL;
+               }
+               ret = ext2_get_inode((ext2_VOLUME*)volume, ino, inode);
+               if (ret == -1) {
+                       free(inode);
+                       return NULL;
+               }
+       }
+
+       file = (ext2_FILE*)malloc(sizeof(ext2_FILE));
+       if (file == NULL) {
+               free(inode);
+               return NULL;
+       }
+       file->volume = volume;
+       file->inode = inode;
+       file->offset = 0;
+       file->path = strdup(pathname);
+
+       return file;
+}