Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / openbios / fs / hfs / medium.c

diff --git a/qemu/roms/openbios/fs/hfs/medium.c b/qemu/roms/openbios/fs/hfs/medium.c
new file mode 100644 (file)
index 0000000..171ba80
--- /dev/null
+++ b/qemu/roms/openbios/fs/hfs/medium.c
@@ -0,0 +1,84 @@
+/*
+ * libhfs - library for reading and writing Macintosh HFS volumes
+ * Copyright (C) 1996-1998 Robert Leslie
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * $Id: medium.c,v 1.4 1998/11/02 22:09:04 rob Exp $
+ */
+
+#include "config.h"
+#include "libhfs.h"
+#include "block.h"
+#include "low.h"
+#include "medium.h"
+
+
+/*
+ * NAME:       medium->findpmentry()
+ * DESCRIPTION:        locate a partition map entry
+ */
+int m_findpmentry(hfsvol *vol, const char *type,
+                 Partition *map, unsigned long *start)
+{
+  unsigned long bnum;
+  int found = 0;
+
+  if (start && *start > 0)
+    {
+      bnum = *start;
+
+      if (bnum++ >= (unsigned long) map->pmMapBlkCnt)
+       ERROR(EINVAL, "partition not found");
+    }
+  else
+    bnum = 1;
+
+  while (1)
+    {
+      if (l_getpmentry(vol, map, bnum) == -1)
+       {
+         found = -1;
+         goto fail;
+       }
+
+      if (map->pmSig != HFS_PM_SIGWORD)
+       {
+         found = -1;
+
+         if (map->pmSig == HFS_PM_SIGWORD_OLD)
+           ERROR(EINVAL, "old partition map format not supported");
+         else
+           ERROR(EINVAL, "invalid partition map");
+       }
+
+      if (strcmp((char *) map->pmParType, type) == 0)
+       {
+         found = 1;
+         goto done;
+       }
+
+      if (bnum++ >= (unsigned long) map->pmMapBlkCnt)
+       ERROR(EINVAL, "partition not found");
+    }
+
+done:
+  if (start)
+    *start = bnum;
+
+fail:
+  return found;
+}