inspection: Add detection of FreeDOS (RHBZ#786215).

FreeDOS is returned as type="dos", distro="freedos".  No version or
application information is returned at present.

6 files changed, 24 insertions, 0 deletions

diff --git a/src/guestfs-internal.h b/src/guestfs-internal.h
index 452a1b66..82cb9a56 100644
--- a/src/guestfs-internal.h
+++ b/src/guestfs-internal.h
@@ -257,6 +257,7 @@ enum inspect_fs_content {
   FS_CONTENT_NETBSD_ROOT,
   FS_CONTENT_INSTALLER,
   FS_CONTENT_HURD_ROOT,
+  FS_CONTENT_FREEDOS_ROOT,
 };
 
 enum inspect_os_format {
@@ -273,6 +274,7 @@ enum inspect_os_type {
   OS_TYPE_FREEBSD,
   OS_TYPE_NETBSD,
   OS_TYPE_HURD,
+  OS_TYPE_DOS,
 };
 
 enum inspect_os_distro {
@@ -297,6 +299,7 @@ enum inspect_os_distro {
   OS_DISTRO_OPENSUSE,
   OS_DISTRO_BUILDROOT,
   OS_DISTRO_CIRROS,
+  OS_DISTRO_FREEDOS,
 };
 
 enum inspect_os_package_format {
diff --git a/src/inspect.c b/src/inspect.c
index 46e1e4d5..d3bb76a4 100644
--- a/src/inspect.c
+++ b/src/inspect.c
@@ -188,6 +188,7 @@ guestfs__inspect_get_type (guestfs_h *g, const char *root)
 
   char *ret;
   switch (fs->type) {
+  case OS_TYPE_DOS: ret = safe_strdup (g, "dos"); break;
   case OS_TYPE_FREEBSD: ret = safe_strdup (g, "freebsd"); break;
   case OS_TYPE_HURD: ret = safe_strdup (g, "hurd"); break;
   case OS_TYPE_LINUX: ret = safe_strdup (g, "linux"); break;
@@ -224,6 +225,7 @@ guestfs__inspect_get_distro (guestfs_h *g, const char *root)
   case OS_DISTRO_CIRROS: ret = safe_strdup (g, "cirros"); break;
   case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break;
   case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
+  case OS_DISTRO_FREEDOS: ret = safe_strdup (g, "freedos"); break;
   case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break;
   case OS_DISTRO_LINUX_MINT: ret = safe_strdup (g, "linuxmint"); break;
   case OS_DISTRO_MAGEIA: ret = safe_strdup (g, "mageia"); break;
diff --git a/src/inspect_apps.c b/src/inspect_apps.c
index 2f3e3f15..603e25d4 100644
--- a/src/inspect_apps.c
+++ b/src/inspect_apps.c
@@ -106,6 +106,7 @@ guestfs__inspect_list_applications (guestfs_h *g, const char *root)
 
     case OS_TYPE_FREEBSD:
     case OS_TYPE_NETBSD:
+    case OS_TYPE_DOS:
     case OS_TYPE_UNKNOWN:
     default:
       /* nothing - keep GCC happy */;
diff --git a/src/inspect_fs.c b/src/inspect_fs.c
index 211f94df..b1dd4f66 100644
--- a/src/inspect_fs.c
+++ b/src/inspect_fs.c
@@ -261,6 +261,19 @@ check_filesystem (guestfs_h *g, const char *device,
   /* Windows volume (but not root)? */
   else if (guestfs___is_dir_nocase (g, "/System Volume Information") > 0)
     fs->content = FS_CONTENT_WINDOWS_VOLUME;
+  /* FreeDOS? */
+  else if (guestfs___is_dir_nocase (g, "/FDOS") > 0 &&
+           guestfs___is_file_nocase (g, "/FDOS/FREEDOS.BSS") > 0) {
+    fs->is_root = 1;
+    fs->content = FS_CONTENT_FREEBSD_ROOT;
+    fs->format = OS_FORMAT_INSTALLED;
+    fs->type = OS_TYPE_DOS;
+    fs->distro = OS_DISTRO_FREEDOS;
+    /* FreeDOS is a mix of 16 and 32 bit, but assume it requires a
+     * 32 bit i386 processor.
+     */
+    fs->arch = safe_strdup (g, "i386");
+  }
   /* Install CD/disk?  Skip these checks if it's not a whole device
    * (eg. CD) or the first partition (eg. bootable USB key).
    */
@@ -424,6 +437,7 @@ check_package_format (guestfs_h *g, struct inspect_fs *fs)
   case OS_DISTRO_WINDOWS:
   case OS_DISTRO_BUILDROOT:
   case OS_DISTRO_CIRROS:
+  case OS_DISTRO_FREEDOS:
   case OS_DISTRO_UNKNOWN:
   default:
     fs->package_format = OS_PACKAGE_FORMAT_UNKNOWN;
@@ -479,6 +493,7 @@ check_package_management (guestfs_h *g, struct inspect_fs *fs)
   case OS_DISTRO_WINDOWS:
   case OS_DISTRO_BUILDROOT:
   case OS_DISTRO_CIRROS:
+  case OS_DISTRO_FREEDOS:
   case OS_DISTRO_UNKNOWN:
   default:
     fs->package_management = OS_PACKAGE_MANAGEMENT_UNKNOWN;
diff --git a/src/inspect_fs_unix.c b/src/inspect_fs_unix.c
index 252cce3c..5e58eb9c 100644
--- a/src/inspect_fs_unix.c
+++ b/src/inspect_fs_unix.c
@@ -686,6 +686,7 @@ check_hostname_unix (guestfs_h *g, struct inspect_fs *fs)
     break;
 
   case OS_TYPE_WINDOWS: /* not here, see check_windows_system_registry */
+  case OS_TYPE_DOS:
   case OS_TYPE_UNKNOWN:
   default:
     /* nothing, keep GCC warnings happy */;
diff --git a/src/inspect_icon.c b/src/inspect_icon.c
index 943479c0..6cb5553f 100644
--- a/src/inspect_icon.c
+++ b/src/inspect_icon.c
@@ -165,6 +165,7 @@ guestfs__inspect_get_icon (guestfs_h *g, const char *root, size_t *size_r,
       /* These are just to keep gcc warnings happy. */
     case OS_DISTRO_ARCHLINUX:
     case OS_DISTRO_BUILDROOT:
+    case OS_DISTRO_FREEDOS:
     case OS_DISTRO_GENTOO:
     case OS_DISTRO_LINUX_MINT:
     case OS_DISTRO_MANDRIVA:
@@ -190,6 +191,7 @@ guestfs__inspect_get_icon (guestfs_h *g, const char *root, size_t *size_r,
 
   case OS_TYPE_FREEBSD:
   case OS_TYPE_NETBSD:
+  case OS_TYPE_DOS:
   case OS_TYPE_UNKNOWN:
   default: ;
   }