X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=daemon%2Fmount.c;h=1820f8a8e4b79ea2a9b1a1987a77bb55adad5464;hb=625d0bd56189450f48b6308371bf08ee6312d59f;hp=67b548ef3b67f05053979508a2d596c3743f9b47;hpb=25ebdcd50685c4364fc852feca201f8335d47b52;p=libguestfs.git

diff --git a/daemon/mount.c b/daemon/mount.c
index 67b548e..1820f8a 100644
--- a/daemon/mount.c
+++ b/daemon/mount.c
@@ -1,5 +1,5 @@
 /* libguestfs - the guestfsd daemon
- * Copyright (C) 2009 Red Hat Inc. 
+ * Copyright (C) 2009 Red Hat Inc.
  *
  * 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
@@ -278,3 +278,47 @@ do_umount_all (void)
 
   return 0;
 }
+
+/* Mount using the loopback device.  You can't use the generic
+ * do_mount call for this because the first parameter isn't a
+ * device.
+ */
+int
+do_mount_loop (char *file, char *mountpoint)
+{
+  int len, r;
+  char *buf, *mp;
+  char *error;
+
+  NEED_ROOT (-1);
+  ABS_PATH (file, -1);
+
+  /* We have to prefix /sysroot on both the filename and the mountpoint. */
+  len = strlen (mountpoint) + 9;
+  mp = malloc (len);
+  if (!mp) {
+    reply_with_perror ("malloc");
+    return -1;
+  }
+  snprintf (mp, len, "/sysroot%s", mountpoint);
+
+  len = strlen (file) + 9;
+  buf = malloc (len);
+  if (!file) {
+    reply_with_perror ("malloc");
+    free (mp);
+    return -1;
+  }
+  snprintf (buf, len, "/sysroot%s", file);
+
+  r = command (NULL, &error, "mount", "-o", "loop", buf, mp, NULL);
+  free (mp);
+  free (buf);
+  if (r == -1) {
+    reply_with_error ("mount: %s on %s: %s", file, mountpoint, error);
+    free (error);
+    return -1;
+  }
+
+  return 0;
+}