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author | Richard Jones <rjones@redhat.com> | 2009-10-26 14:26:36 +0000 |
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committer | Richard Jones <rjones@redhat.com> | 2009-10-26 15:52:40 +0000 |
commit | d609130cb65fe7795b168a796426e39d64ceda97 (patch) | |
tree | 89f5e7ff5879ff0b88236b0216b4f26b46aaeb2f /daemon/blkid.c | |
parent | aa7ca27e4be1fd38a1eff4d24974f053080a9704 (diff) | |
download | libguestfs-d609130cb65fe7795b168a796426e39d64ceda97.tar.gz libguestfs-d609130cb65fe7795b168a796426e39d64ceda97.tar.xz libguestfs-d609130cb65fe7795b168a796426e39d64ceda97.zip |
New API: vfs_type - get the Linux VFS driver for a mounted device.
Diffstat (limited to 'daemon/blkid.c')
-rw-r--r-- | daemon/blkid.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/daemon/blkid.c b/daemon/blkid.c new file mode 100644 index 00000000..4e14881f --- /dev/null +++ b/daemon/blkid.c @@ -0,0 +1,53 @@ +/* libguestfs - the guestfsd daemon + * 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 + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <limits.h> + +#include "daemon.h" +#include "actions.h" + +char * +do_vfs_type (const char *device) +{ + char *out, *err; + int r; + + r = command (&out, &err, + "/sbin/blkid", "-o", "value", "-s", "TYPE", device, NULL); + if (r == -1) { + reply_with_error ("vfs_type: %s: %s", device, err); + free (out); + free (err); + return NULL; + } + + free (err); + + /* Trim trailing \n if present. */ + size_t len = strlen (out); + if (len > 0 && out[len-1] == '\n') + out[len-1] = '\0'; + + return out; /* caller frees */ +} |